[Objectives]Some Chinese medicinal materials of Jianjin Zhuanggu Paste were microscopically identified,and several active ingredients were studied by thin-layer identification,which provides reference for further impr...[Objectives]Some Chinese medicinal materials of Jianjin Zhuanggu Paste were microscopically identified,and several active ingredients were studied by thin-layer identification,which provides reference for further improving the quality standards of hospital preparations.[Methods]The effective components of Jianjin Zhuanggu Paste were qualitatively identified by thin-layer chromatography(TLC).[Results]The microscopic identification of the three Chinese medicinal materials in Jianjin Zhuanggu Paste showed the microscopic characteristics of Radix Codonopsis,Radix Astragali and Radix Notoginseng.TLC identification showed that there were characteristic spots of Radix Codonopsis,Radix Astragali,Radix Rehmanniae Preparata and Radix Notoginseng in Jianjin Zhuanggu Paste.[Conclusions]This study established the quality standard research method of Jianjin Zhuanggu Paste,which further strengthens the safety standards of hospital preparations,and improves the clinical efficacy of drugs,as well as the quality standards of hospital preparations to a certain extent.展开更多
[Objectives]To establish the quality standard of Nardostachys jatamansi Herba.[Methods]The characters and microscopical identification of N.jatamansi Herba were carried out.The contents of moisture,total ash,acid-inso...[Objectives]To establish the quality standard of Nardostachys jatamansi Herba.[Methods]The characters and microscopical identification of N.jatamansi Herba were carried out.The contents of moisture,total ash,acid-insoluble ash and extract were determined according to the relevant methods of the Chinese Pharmacopoeia(2020 edition).Using chlorogenic acid and 3,5-O-dicaffeoylquinic acid as quality control indexes,TLC and HPLC methods were established for qualitative and quantitative determination,and HPLC fingerprints were established.[Results]The characteristics of character identification,microscopic identification and thin layer identification were obvious.The moisture content ranged from 2.7%to 7.8%,with an average value of 5.4%.The total ash content ranged from 6.7%to 16.2%,with an average of 11.0%.The acid-insoluble ash content ranged from 0.7%to 8.5%,with an average of 3.6%.Extractives content ranged from 20.9%to 34.4%,with an average of 29.7%.Chlorogenic acid content was between 0.45%and 1.30%,with an average value of 0.77%.The content of 3,5-O-dicaffeoylquinic acid ranged from 0.18%to 0.58%,with an average of 0.31%.The similarity of each batch was between 0.930 and 0.994,indicating that the quality of medicinal materials from different producing areas was stable.[Conclusions]The quality standard of N.jatamansi Herba was established,which could provide quality control basis for rational,comprehensive and efficient utilization of N.jatamansi DC.resources and clinical use.展开更多
With the progress of science and technology and the acceleration of industrialization,the modern industrial park is an important carrier of industrial development.The importance of its standard plant design has become...With the progress of science and technology and the acceleration of industrialization,the modern industrial park is an important carrier of industrial development.The importance of its standard plant design has become increasingly prominent.With the development of new quality productive forces as the background,this research deeply discusses the key points of standard plant design in modern industrial parks.This paper uses literature review and case analysis to systematically analyze the important role of standard plant design in developing new quality productive forces in modern industrial parks and puts forward suggestions for optimizing design.It is found that the rationality,intelligence,and environmental protection of plant design are the key factors affecting the development of new quality productive forces.The paper summarizes the core points of modern industrial park standard plant design to provide a reference for the future development of related industries.展开更多
[Objectives]This study was conducted to establish the quality standard of Danshen Jianxin Capsules.[Methods]Orthogonal design was adopted to optimize the water extraction process by taking the amount of water added,ex...[Objectives]This study was conducted to establish the quality standard of Danshen Jianxin Capsules.[Methods]Orthogonal design was adopted to optimize the water extraction process by taking the amount of water added,extraction time and extraction times as factors,and the content of tanshinone I as the index.Salviae Miltiorrhizae,Notoginseng Radix Et Rhizoma and Radix Astragali in the capsules were qualitatively identified by TLC,and the content of tanshinone I in the capsules was determined by HPLC.[Results]The best water extraction process included the steps of adding 12 times of water each time,extracting the materials twice,for 1 h each time.In TLC identification,the test samples showed spots of the same color at the positions corresponding to tanshinone II A,ginsenoside Rg1,notoginsenoside R1 and astragaloside IV reference samples.[Conclusions]Danshen Jianxin Capsules was prepared by the water extraction method,which is characterized by high efficiency and being suitable for mass production.The quality control method is reliable,fast and accurate,which can effectively control the quality of the product.展开更多
[Objectives]To establish the quality standard of common clinical folk herb Sophora davidii var.chuansiensis.[Methods]The qualitative identification was performed by microscopic method and thin-layer chromatography(TLC...[Objectives]To establish the quality standard of common clinical folk herb Sophora davidii var.chuansiensis.[Methods]The qualitative identification was performed by microscopic method and thin-layer chromatography(TLC).The contents of moisture,total ash,acid insoluble ash and extract were determined according to the methods of the Chinese Pharmacopoeia(2020).High performance liquid chromatography(HPLC)was used to determine the contents of oxymatrine and oxysophocarpine.[Results]The microscopic characteristics were obvious,including crystal sheath fiber,calcium oxalate square crystal,non glandular hair,stone cells,epidermal cells,stomata,cork cells,vessels with marginal pits and so on.TLC spots were clear,and the resolution was good.The contents of moisture,total ash,acid insoluble ash and extract from 10 batches of samples were 4.70%-8.33%,3.43%-4.19%,0.65%-1.02%and 14.67%-22.04%respectively.The determination results of oxymatrine were between 0.10%-0.33%,with an average value of 0.19%.The determination results of sophocarpine oxide were between 0.30%-0.38%,with an average value of 0.34%.[Conclusions]The established quality standard of S.davidii var.chuansiensis had good specificity and accuracy,and could be used for the quality control of herb S.davidii var.chuansiensis.展开更多
[Objectives]This study was conducted to explore the quality control method and establish the quality standard of Zhuang medicine Buddlejae Flos.[Methods]The microscopic identification method was adopted to identify th...[Objectives]This study was conducted to explore the quality control method and establish the quality standard of Zhuang medicine Buddlejae Flos.[Methods]The microscopic identification method was adopted to identify the characters and microscopic characteristics of dried Buddlejae Flos in combination with traditional experience.The moisture,ash,acid-insoluble components and extracts of Buddlejae Flos were determined with reference to general rules of Chinese Pharmacopoeia(2015 edition).TLC identification was performed.Liquid chromatography-mass spectrometry(LC-MS)was used to determine the contents of linarin and verbascoside in Buddlejae Flos,and gas chromatography-mass spectrometry(GC-MS)was adopted to detect pesticide residues in Buddlejae Flos.Heavy metal elements As,Cd and Pb were detected by inductively coupled plasma mass spectrometry(ICP-MS).[Results]The established method is simple and accurate.Clear spots were observed on the thin layer chromatograms,and the resolution was good.The average value of moisture content was 12.24%;the average value of ash content was 5.1%;the average value of acid-insoluble content was 7.5%;and the average value of extract content was 27.3%.The regression equation of rutin in Buddlejae Flos was y=11.896x-0.0049,R^(2)=0.9996,and the contents of linarin and verbascoside were 5680 and 2080 mg/kg,respectively.No pesticide residues and heavy metals were detected in the medicinal materials of Buddlejae Flos.[Conclusions]This study can provide reference for the quality standard control of Guangxi Zhuang medicine Buddlejae Flos.展开更多
[Objectives]To establish the quality standard of Oxyria sinensis Hemsl.[Methods]The method in Chinese Pharmacopoeia(2020 edition)was used to determine the moisture,total ash,acid-insoluble ash and alcohol-soluble extr...[Objectives]To establish the quality standard of Oxyria sinensis Hemsl.[Methods]The method in Chinese Pharmacopoeia(2020 edition)was used to determine the moisture,total ash,acid-insoluble ash and alcohol-soluble extracts of O.sinensis.The qualitative identification of medicinal materials was carried out by microscopic identification method and thin layer chromatography(TLC).The contents of hyperoside and isoquercitrin were determined by high performance liquid chromatography(HPLC).[Results]The total amount of moisture,total ash,acid-insoluble ash,alcohol-soluble extract,hyperoside and isoquercitrin of 12 batches of medicinal materials were 8.56%-11.53%,11.26%-15.48%,1.62%-2.56%,17.75%-26.09%,and 0.036%-0.42%,respectively.The microscopic features were obvious,and pores,fibers,calcium oxalate clusters,calcium oxalate square crystals,cork cells could be observed.Fluorescent spots of the same color were displayed at the positions corresponding to the hyperoside reference substance.[Conclusions]Establishing relatively complete quality standards for O.sinensis medicinal materials can provide a reference for the quality control of medicinal materials.展开更多
[Objectives]The paper was to establish the quality standard of Carpesium lipskyi,and to provide a scientific reference for its quality control and rational development and utilization.[Methods]Morphological identifica...[Objectives]The paper was to establish the quality standard of Carpesium lipskyi,and to provide a scientific reference for its quality control and rational development and utilization.[Methods]Morphological identification,microscopic identification and thin layer chromatography(TLC)identification of the herbal samples were performed.The contents of moisture,total ash,acid-insoluble ash and alcohol-soluble extract of the herbal samples were determined,and their total flavonoid content was determined by UV-spectrophotometry.[Results]The average contents of moisture,total ash,acid-insoluble ash and alcohol-soluble extracts of 10 batches of C.lipskyi were 10.38%-12.27%,8.03%-14.72%,1.01%-3.06%and 20.84%-26.82%,respectively.The total flavonoids content ranged from 4.60%to 5.63%.[Conclusions]The established standard can provide a reference for the quality control of C.lipskyi.The tentative regulations stipulate that the moisture content of C.lipskyi shall not exceed 13.0%;the total ash content shall not exceed 15.0%;the acid-insoluble ash content shall not exceed 4.0%;the alcohol-soluble extract shall not be less than 16.0%;and the total flavonoids shall not be less than 3.0%.展开更多
[Objectives]The paper was to establish the quality standard of Shenqi Qiangjing granules and to conduct routine inspection of granular dosage forms.[Methods]The particle size,moisture,loss on drying,dissolubility,cont...[Objectives]The paper was to establish the quality standard of Shenqi Qiangjing granules and to conduct routine inspection of granular dosage forms.[Methods]The particle size,moisture,loss on drying,dissolubility,content uniformity and microbial limit of Shenqi Qiangjing granules were detected.Radix Astragali,Herba Epimedii,Radix Dipsaci and Fructus Schisandrae Chinensis were qualitatively identified by thin layer chromatography(TLC).[Results]The particle size,moisture,loss on drying,dissolubility,content uniformity and microbial limit of Shenqi Qiangjing granules were all in line with the relevant regulations of Pharmacopoeia of the People's Republic of China(2020 edition).Radix Astragali,Herba Epimedii,Radix Dipsaci and Fructus Schisandrae Chinensis had clear fluorescent spots in TLC assay,and no such spots were found in negative control.[Conclusions]The method has the advantages of simple operation,accurate and reliable results,strong specificity and good repeatability,and can effectively control the quality of Shenqi Qiangjing granules.展开更多
Under the vision of development for the new era,China has entered a stage of high-quality economic development and an important window period in which we have the conditions and ability to address the prominent issue ...Under the vision of development for the new era,China has entered a stage of high-quality economic development and an important window period in which we have the conditions and ability to address the prominent issue of economic development and ecological protection in a coordinated way.However,all kinds of environmental benchmark values in China are lacking and need to be constantly supplemented and improved.Therefore,exploring and putting forward a simple and efficient method for the transformation of environmental criteria into environmental standards is an important basis for the rapid establishment of relevant environmental criteria system and the effective promotion of the development of environmental standards system towards a scientific and reasonable direction.In this paper,the water environment is taken as the research object.By analyzing the research progress of environmental criteria and standards at home and abroad,and the foreign method of transforming environmental criteria into environmental standards,combined with the problems faced in the process of transforming environmental criteria into environmental standards in China,an effective method to transform China's environmental criteria into environmental standards is analyzed.After analysis and comparison,it is found that the pollution reduction accounting method could achieve their simple and efficient conversion.Under the premise of obtaining environmental criteria for certain pollutants,environmental criteria for certain pollutants could be obtained by distributing pollutants reduction costs,and accounting economic benefits after reaching standard,thus obtaining the environmental standard of this type of pollutant,which provides reference to determine the environmental standard limits of such pollutants.展开更多
This is a pilot research project was prepared to assess the impact of implementing essential standardized nursing quality sensitive indicators in monitoring, evaluating, and controlling the nursing services and activi...This is a pilot research project was prepared to assess the impact of implementing essential standardized nursing quality sensitive indicators in monitoring, evaluating, and controlling the nursing services and activities which implemented in daily nursing care works with the patients in a health institute, aiming for emphasizing the concept of “nursing quality sensitive indicators” which is valuable to elaborate nursing care performance, and for continuous upgrading of daily nursing care, which hopefully will result in more beneficial outcomes, and lesser negative or undesirable outcomes in all aspects of nursing care, and consequently the health care process, particularly regarding patient safety, patient satisfaction and nursing performance improvement. This pilot research project for the essential standardized nursing quality sensitive indicators was applied in intensive care unit (ICU) department in Qurayyat general hospital, and resulted in excellent improvement of all outcomes correlated with the essential standardized nursing quality sensitive indicators. These essential standardized nursing quality sensitive indicators are hopefully be accepted and accredited by the higher health authorities as standardized nursing quality sensitive indicators in health institutes.展开更多
This paper analyzed GPS data from the Topo-Iberia network spanning almost 12 years(2008-2020).The data quality information for all 26 Topo-Iberia stations is provided for the first time,complementing the Spanish Geolo...This paper analyzed GPS data from the Topo-Iberia network spanning almost 12 years(2008-2020).The data quality information for all 26 Topo-Iberia stations is provided for the first time,complementing the Spanish Geological Survey’s storage work.Data analyses based on quality indicators obtained using TEQC have been carried out.The guidelines and data quality information from the IGS stations have been considered as the quality references,with the stations ALJI,EPCU,and TIOU standing out as the worst stations,while on the contrary,FUEN,PALM,PILA,and TRIA meet the quality requirements to become an IGS station.The relationship between the GPS data quality and their GAMIT-and Gipsy X-derived postfit ionosphere-free phase residuals has also been investigated,and the results reveal an inversely proportional relationship.It has been found that the stations showing an increase in elevation of the horizon line,also show an increase in cycle slips and multipath,are among the poorest quality stations,and among those with the highest postfit RMS of phase residuals.Moreover,the evolution of the vegetation around the antenna should be considered as it could cause a progressive loss of quality,which is not complying with the IGS standards.The quality assessment shows that the Topo-Iberia stations are appropriate for geodetic purposes,but permanent monitoring would be necessary to avoid the least possible loss of data and quality.In addition,a method to characterize the GNSS data quality is proposed.展开更多
The dramatic increase in intracranial pressure after subarachnoid hemorrhage leads to a decrease in cerebral perfusion pressure and a reduction in cerebral blood flow.Mitochondria are directly affected by direct facto...The dramatic increase in intracranial pressure after subarachnoid hemorrhage leads to a decrease in cerebral perfusion pressure and a reduction in cerebral blood flow.Mitochondria are directly affected by direct factors such as ischemia,hypoxia,excitotoxicity,and toxicity of free hemoglobin and its degradation products,which trigger mitochondrial dysfunction.Dysfunctional mitochondria release large amounts of reactive oxygen species,inflammatory mediators,and apoptotic proteins that activate apoptotic pathways,further damaging cells.In response to this array of damage,cells have adopted multiple mitochondrial quality control mechanisms through evolution,including mitochondrial protein quality control,mitochondrial dynamics,mitophagy,mitochondrial biogenesis,and intercellular mitochondrial transfer,to maintain mitochondrial homeostasis under pathological conditions.Specific interventions targeting mitochondrial quality control mechanisms have emerged as promising therapeutic strategies for subarachnoid hemorrhage.This review provides an overview of recent research advances in mitochondrial pathophysiological processes after subarachnoid hemorrhage,particularly mitochondrial quality control mechanisms.It also presents potential therapeutic strategies to target mitochondrial quality control in subarachnoid hemorrhage.展开更多
The Rural Minimum Living Standard Guarantee(Rural Dibao)is an important unconditional cash transfer program to alleviate poverty in rural China.Despite the importance of children’s nutrition in breaking poverty cycle...The Rural Minimum Living Standard Guarantee(Rural Dibao)is an important unconditional cash transfer program to alleviate poverty in rural China.Despite the importance of children’s nutrition in breaking poverty cycles,little is known about the impact of Rural Dibao on child nutrition outcomes.Using China Family Panel Studies(CFPS),this paper examines the effects of Rural Dibao on child nutrition outcomes and investigates potential pathways and heterogeneous effects.We exploit propensity score matching and difference-in-differences techniques to evaluate the effects of the Rural Dibao program on child nutrition outcomes.Our results suggest that Rural Dibao significantly impacts the nutrition outcomes of children up to 15 years of age.Specifically,our results suggest that Rural Dibao improves child height-to-age z-scores by 1.05 standard deviations and lowers the probability of stunting by 11.9 percentage points.Additional analyses suggest that increased protein intake is the main pathway through which Rural Dibao participation contributes to better nutrition outcomes.We also find that the effect of the program is more pronounced among girls,children who are non-left-behind or live with highly educated mothers,and those from low-income families and poor areas.Our findings suggest that Rural Dibao participation helps improve child nutrition outcomes through improving diet quality.展开更多
Background:The Mongolian gerbil is an excellent laboratory animal for preparing the cerebral ischemia model due to its inherent deficiency in the circle of Willis.However,the low incidence and unpredictability of symp...Background:The Mongolian gerbil is an excellent laboratory animal for preparing the cerebral ischemia model due to its inherent deficiency in the circle of Willis.However,the low incidence and unpredictability of symptoms are caused by numerous complex variant types of the circle.Additionally,the lack of an evaluation system for the cer-ebral ischemia/reperfusion(I/R)model of gerbils has shackled the application of this model.Methods:We created a symptom-oriented principle and detailed neurobehavioral scoring criteria.At different time points of reperfusion,we analyzed the alteration in locomotion by rotarod test and grip force score,infarct volume by triphenyltetrazo-lium chloride(TTC)staining,neuron loss using Nissl staining,and histological charac-teristics using hematoxylin-eosin(H&E)straining.Results:With a successful model rate of 56%,32 of the 57 gerbils operated by our method harbored typical features of cerebral I/R injury,and the mortality rate in the male gerbils was significantly higher than that in the female gerbils.The suc-cessfully prepared I/R gerbils demonstrated a significant reduction in motility and grip strength at 1 day after reperfusion;formed obvious infarction;exhibited typi-cal pathological features,such as tissue edema,neuronal atrophy and death,and vacuolated structures;and were partially recovered with the extension of reperfu-sion time.Conclusion:This study developed a new method for the unilateral common carotid artery ligation I/R model of gerbil and established a standardized evaluation system for this model,which could provide a new cerebral I/R model of gerbils with more practical applications.展开更多
Background Providing high-quality roughage is crucial for improvement of ruminant production because it is an essential component of their feed.Our previous study showed that feeding bio-fermented rice straw(BF)improv...Background Providing high-quality roughage is crucial for improvement of ruminant production because it is an essential component of their feed.Our previous study showed that feeding bio-fermented rice straw(BF)improved the feed intake and weight gain of sheep.However,it remains unclear why feeding BF to sheep increased their feed intake and weight gain.Therefore,the purposes of this research were to investigate how the rumen micro-biota and serum metabolome are dynamically changing after feeding BF,as well as how their changes influence the feed intake,digestibility,nutrient transport,meat quality and growth performances of sheep.Twelve growing Hu sheep were allocated into 3 groups:alfalfa hay fed group(AH:positive control),rice straw fed group(RS:negative control)and BF fed group(BF:treatment).Samples of rumen content,blood,rumen epithelium,muscle,feed offered and refusals were collected for the subsequent analysis.Results Feeding BF changed the microbial community and rumen fermentation,particularly increasing(P<0.05)relative abundance of Prevotella and propionate production,and decreasing(P<0.05)enteric methane yield.The histomorphology(height,width,area and thickness)of rumen papillae and gene expression for carbohydrate trans-port(MCT1),tight junction(claudin-1,claudin-4),and cell proliferation(CDK4,Cyclin A2,Cyclin E1)were improved(P<0.05)in sheep fed BF.Additionally,serum metabolome was also dynamically changed,which led to up-regulating(P<0.05)the primary bile acid biosynthesis and biosynthesis of unsaturated fatty acid in sheep fed BF.As a result,the higher(P<0.05)feed intake,digestibility,growth rate,feed efficiency,meat quality and mono-unsaturated fatty acid concentration in muscle,and the lower(P<0.05)feed cost per kg of live weight were achieved by feeding BF.Conclusions Feeding BF improved the growth performances and meat quality of sheep and reduced their feed cost.Therefore,bio-fermentation of rice straw could be an innovative way for improving ruminant production with mini-mizing production costs.展开更多
Pectin is a major constituent of the plant cell wall.Pectate lyase(PEL,EC 4.2.2.2)uses anti-β-elimination chemistry to cleave theα-1,4 glycosidic linkage in the homogalacturonan region of pectin.However,limited info...Pectin is a major constituent of the plant cell wall.Pectate lyase(PEL,EC 4.2.2.2)uses anti-β-elimination chemistry to cleave theα-1,4 glycosidic linkage in the homogalacturonan region of pectin.However,limited information is available on the comprehensive and evolutionary analysis of PELs in the Malvaceae.In this study,we identified 597PEL genes from 10 Malvaceae species.Phylogenetic and motif analyses revealed that these PELs are classified into six subfamilies:Clades I,II,III,IV,Va,and Vb.The two largest subfamilies,Clades I and II,contained 237 and222 PEL members,respectively.The members of Clades Va and Vb only contained four or five motifs,far fewer than the other subfamilies.Gene duplication analysis showed that segmental duplication played a crucial role in the expansion of the PEL gene family in Gossypium species.The PELs from Clades I,IV,Va,and Vb were expressed during the fiber elongation stage,but nearly all PEL genes from Clades II and III showed no expression in any of the investigated fiber developmental stages.We further performed single-gene haplotype association analysis in 2,001G.hirsutum accessions and 229 G.barbadense accessions.Interestingly,14 PELs were significantly associated with fiber length and strength traits in G.barbadense with superior fiber quality,while only eight GhPEL genes were found to be significantly associated with fiber quality traits in G.hirsutum.Our findings provide important information for further evolutionary and functional research on the PEL gene family members and their potential use for fiber quality improvement in cotton.展开更多
Over the past few decades,the Internet has rapidly diffused across China.The spread of the Internet has had a profound economic and social impact on Chinese rural areas.Existing research shows that Internet access sig...Over the past few decades,the Internet has rapidly diffused across China.The spread of the Internet has had a profound economic and social impact on Chinese rural areas.Existing research shows that Internet access significantly impacts agricultural production and improves smallholder farmers’income.Beyond these,the Internet can affect other dimensions of social welfare.However,research about the impact of Internet access on dietary quality in rural China remains scarce.This study utilizes multi-period panel data from Fixed Observation Point in rural China from 2009 to 2015 to estimate the impact of Internet access on dietary quality and food consumption of rural households and conducts a causal analysis.Regression models with time and household fixed effects allow robust estimation while reducing potential issues of unobserved heterogeneity.The estimates show that Internet access has significantly increased rural household dietary quality(measured by the Chinese Diet Balance Index).Further research finds that Internet access has increased the consumption of animal products,such as aquatic and dairy products.We also examine the underlying mechanisms.Internet access improves dietary quality and food consumption mainly through increasing household income and food expenditure.These results encourage the promotion of Internet access as a valuable tool for nutritional improvements,especially in rural areas.展开更多
Objective:To investigate the relationship between ambient sulfur dioxide(SO2)exposure and semen quality parameters.Methods:A systematic literature search was conducted to identify relevant studies investigating the as...Objective:To investigate the relationship between ambient sulfur dioxide(SO2)exposure and semen quality parameters.Methods:A systematic literature search was conducted to identify relevant studies investigating the association between SO2 exposure and semen quality parameters.This search encompassed the timeframe from January 2000 to May 2023 and included electronic databases such as Web of Science,Google Scholar,PubMed,Cochrane,and Scopus.Pooled effect estimates with 95%confidence intervals(CI)were calculated using percent changes(PC).The meta-analysis included seven studies with 6711 participants and 15087 semen samples.Results:The results revealed a significant negative association between ambient SO2 exposure and certain semen quality parameters.In particular,SO2 exposure was associated with a significant decrease in progressive motility(PC=0.032;95%CI:-0.063 to-0.001;P=0.044)and sperm concentration(PC=-0.020;95%CI:-0.036 to-0.005;P=0.012).However,no statistically significant associations were observed for total sperm count(PC=-0.038;95%CI:-0.079 to 0.003;P=0.070),seminal fluid volume(PC=-0.009;95%CI:-0.048 to-0.030;P=0.662)and sperm motility(PC=-0.17;95%CI:-0.363 to 0.022;P=0.830).In addition,the results of the subgroup analysis revealed specific variables that were associated with the decrease in relevant sperm parameters.Conclusions:This systematic review and meta-analysis provides compelling evidence supporting a consistent negative association between exposure to ambient SO2 and semen quality parameters.展开更多
BACKGROUND Hormone replacement therapy is an effective treatment strategy for the management of symptoms in naturally menopausal women.However,some patients report experiencing adverse effects.AIM To analyze the effec...BACKGROUND Hormone replacement therapy is an effective treatment strategy for the management of symptoms in naturally menopausal women.However,some patients report experiencing adverse effects.AIM To analyze the effects of hormone replacement therapy in menopausal female patients.METHODS A total of 152 menopausal female patients admitted to the Gynecology Department of the Ganzhou Maternal and Child Health Hospital between January 2021 and December 2023 were divided into the observation group(n=76,conventional treatment+hormone replacement therapy)and the control group(n=76,conventional treatment only)via random casting.The improvement observed in the following items were compared between the groups:Kupperman menopausal index(KMI),emotional state[The Positive and Negative Affect Scale(PANAS)],sleep quality[Self-Rating Scale of Sleep(SRSS)],treatment effectiveness,and treatment safety.RESULTS The modified KMI and SRSS scores of the observation group were lower than those of the control group after three rounds of treatment.The improvement in the PANAS score observed in the observation group was greater than that observed in the control group(P<0.05).The total treatment effectivity rate in the observation group was higher than that in the control group(86.84%vs 96.05%,χ2=4.121,P=0.042).The incidence rate of adverse reactions in the two groups was comparable(6.58%vs 9.21%,χ2=0.361,P=0.547).CONCLUSION Hormone replacement therapy effectively improved the clinical symptoms,actively channeled negative emotions,and improved the quality of sleep in menopausal patients,indicating its effectiveness and safety.展开更多
基金Supported by The Self-financing Project of Guangxi Zhuang Autonomous Region Administration of Traditional Chinese Medicine(GZZC2020496)Wuzhou Science and Technology Planning Project(201902214)Scientific Research Project of Health Commission of Wuzhou(WZWS-Z2023036).
文摘[Objectives]Some Chinese medicinal materials of Jianjin Zhuanggu Paste were microscopically identified,and several active ingredients were studied by thin-layer identification,which provides reference for further improving the quality standards of hospital preparations.[Methods]The effective components of Jianjin Zhuanggu Paste were qualitatively identified by thin-layer chromatography(TLC).[Results]The microscopic identification of the three Chinese medicinal materials in Jianjin Zhuanggu Paste showed the microscopic characteristics of Radix Codonopsis,Radix Astragali and Radix Notoginseng.TLC identification showed that there were characteristic spots of Radix Codonopsis,Radix Astragali,Radix Rehmanniae Preparata and Radix Notoginseng in Jianjin Zhuanggu Paste.[Conclusions]This study established the quality standard research method of Jianjin Zhuanggu Paste,which further strengthens the safety standards of hospital preparations,and improves the clinical efficacy of drugs,as well as the quality standards of hospital preparations to a certain extent.
基金Supported by National Key R&D Plan Project (2018YFC1708005)Application Foundation Project of Sichuan Provincial Department of Science and Technology (20YYJC3299)Special Fund for Basic Scientific Research Business Expenses of Central Universities of Southwest Minzu University (2020NGD01).
文摘[Objectives]To establish the quality standard of Nardostachys jatamansi Herba.[Methods]The characters and microscopical identification of N.jatamansi Herba were carried out.The contents of moisture,total ash,acid-insoluble ash and extract were determined according to the relevant methods of the Chinese Pharmacopoeia(2020 edition).Using chlorogenic acid and 3,5-O-dicaffeoylquinic acid as quality control indexes,TLC and HPLC methods were established for qualitative and quantitative determination,and HPLC fingerprints were established.[Results]The characteristics of character identification,microscopic identification and thin layer identification were obvious.The moisture content ranged from 2.7%to 7.8%,with an average value of 5.4%.The total ash content ranged from 6.7%to 16.2%,with an average of 11.0%.The acid-insoluble ash content ranged from 0.7%to 8.5%,with an average of 3.6%.Extractives content ranged from 20.9%to 34.4%,with an average of 29.7%.Chlorogenic acid content was between 0.45%and 1.30%,with an average value of 0.77%.The content of 3,5-O-dicaffeoylquinic acid ranged from 0.18%to 0.58%,with an average of 0.31%.The similarity of each batch was between 0.930 and 0.994,indicating that the quality of medicinal materials from different producing areas was stable.[Conclusions]The quality standard of N.jatamansi Herba was established,which could provide quality control basis for rational,comprehensive and efficient utilization of N.jatamansi DC.resources and clinical use.
文摘With the progress of science and technology and the acceleration of industrialization,the modern industrial park is an important carrier of industrial development.The importance of its standard plant design has become increasingly prominent.With the development of new quality productive forces as the background,this research deeply discusses the key points of standard plant design in modern industrial parks.This paper uses literature review and case analysis to systematically analyze the important role of standard plant design in developing new quality productive forces in modern industrial parks and puts forward suggestions for optimizing design.It is found that the rationality,intelligence,and environmental protection of plant design are the key factors affecting the development of new quality productive forces.The paper summarizes the core points of modern industrial park standard plant design to provide a reference for the future development of related industries.
基金Supported by Self-financed Scientific Research Project of Administration of Traditional Chinese Medicine of Guangxi Zhuang Autonomous Region(GXZYZ20210290)The First Batch of High-level Talent Research Project of Affiliated Hospital of Youjiang Medical University for Nationalities in 2019(Y20196311)Basic Scientific Research Ability Improvement Project for Young and Middle-aged Teachers in Guangxi Universities in 2020(2020KY13034).
文摘[Objectives]This study was conducted to establish the quality standard of Danshen Jianxin Capsules.[Methods]Orthogonal design was adopted to optimize the water extraction process by taking the amount of water added,extraction time and extraction times as factors,and the content of tanshinone I as the index.Salviae Miltiorrhizae,Notoginseng Radix Et Rhizoma and Radix Astragali in the capsules were qualitatively identified by TLC,and the content of tanshinone I in the capsules was determined by HPLC.[Results]The best water extraction process included the steps of adding 12 times of water each time,extracting the materials twice,for 1 h each time.In TLC identification,the test samples showed spots of the same color at the positions corresponding to tanshinone II A,ginsenoside Rg1,notoginsenoside R1 and astragaloside IV reference samples.[Conclusions]Danshen Jianxin Capsules was prepared by the water extraction method,which is characterized by high efficiency and being suitable for mass production.The quality control method is reliable,fast and accurate,which can effectively control the quality of the product.
基金Supported by National Key R&D Plan(2018YFC1708005)Sichuan Science and Technology Plan Project(2021YFS0043)+2 种基金Improvement of the Standard of Traditional Chinese Medicine(Ethnic Medicine)of Sichuan Medical Products Administration(510201202102305)Leading Talent Support Plan in 2021Research Projects of Special Funds for Basic Scientific Research Business Expenses of Central Colleges and Universities(2021PTJS35).
文摘[Objectives]To establish the quality standard of common clinical folk herb Sophora davidii var.chuansiensis.[Methods]The qualitative identification was performed by microscopic method and thin-layer chromatography(TLC).The contents of moisture,total ash,acid insoluble ash and extract were determined according to the methods of the Chinese Pharmacopoeia(2020).High performance liquid chromatography(HPLC)was used to determine the contents of oxymatrine and oxysophocarpine.[Results]The microscopic characteristics were obvious,including crystal sheath fiber,calcium oxalate square crystal,non glandular hair,stone cells,epidermal cells,stomata,cork cells,vessels with marginal pits and so on.TLC spots were clear,and the resolution was good.The contents of moisture,total ash,acid insoluble ash and extract from 10 batches of samples were 4.70%-8.33%,3.43%-4.19%,0.65%-1.02%and 14.67%-22.04%respectively.The determination results of oxymatrine were between 0.10%-0.33%,with an average value of 0.19%.The determination results of sophocarpine oxide were between 0.30%-0.38%,with an average value of 0.34%.[Conclusions]The established quality standard of S.davidii var.chuansiensis had good specificity and accuracy,and could be used for the quality control of herb S.davidii var.chuansiensis.
基金Supported by Guangxi Key R&D Program(GK AB18221095)Guangxi Key Laboratory of Molecular Pathology of Hepatobiliary Diseases(GXZDSYS-005)+1 种基金Baise Scientific Research and Technological Development Program in 2021(BK 20211810)High-level Talent Scientific Research Project of Youjiang Medical University for Nationalities(01002018079)。
文摘[Objectives]This study was conducted to explore the quality control method and establish the quality standard of Zhuang medicine Buddlejae Flos.[Methods]The microscopic identification method was adopted to identify the characters and microscopic characteristics of dried Buddlejae Flos in combination with traditional experience.The moisture,ash,acid-insoluble components and extracts of Buddlejae Flos were determined with reference to general rules of Chinese Pharmacopoeia(2015 edition).TLC identification was performed.Liquid chromatography-mass spectrometry(LC-MS)was used to determine the contents of linarin and verbascoside in Buddlejae Flos,and gas chromatography-mass spectrometry(GC-MS)was adopted to detect pesticide residues in Buddlejae Flos.Heavy metal elements As,Cd and Pb were detected by inductively coupled plasma mass spectrometry(ICP-MS).[Results]The established method is simple and accurate.Clear spots were observed on the thin layer chromatograms,and the resolution was good.The average value of moisture content was 12.24%;the average value of ash content was 5.1%;the average value of acid-insoluble content was 7.5%;and the average value of extract content was 27.3%.The regression equation of rutin in Buddlejae Flos was y=11.896x-0.0049,R^(2)=0.9996,and the contents of linarin and verbascoside were 5680 and 2080 mg/kg,respectively.No pesticide residues and heavy metals were detected in the medicinal materials of Buddlejae Flos.[Conclusions]This study can provide reference for the quality standard control of Guangxi Zhuang medicine Buddlejae Flos.
基金Supported by Chinese Medicine(Ethnic Medicine)Standard Improvement Project of Sichuan Medical Products Administration(510201202102305)School Level Innovation Team of Fundamental Research Funds for the Central Universities(ZYN2022067)。
文摘[Objectives]To establish the quality standard of Oxyria sinensis Hemsl.[Methods]The method in Chinese Pharmacopoeia(2020 edition)was used to determine the moisture,total ash,acid-insoluble ash and alcohol-soluble extracts of O.sinensis.The qualitative identification of medicinal materials was carried out by microscopic identification method and thin layer chromatography(TLC).The contents of hyperoside and isoquercitrin were determined by high performance liquid chromatography(HPLC).[Results]The total amount of moisture,total ash,acid-insoluble ash,alcohol-soluble extract,hyperoside and isoquercitrin of 12 batches of medicinal materials were 8.56%-11.53%,11.26%-15.48%,1.62%-2.56%,17.75%-26.09%,and 0.036%-0.42%,respectively.The microscopic features were obvious,and pores,fibers,calcium oxalate clusters,calcium oxalate square crystals,cork cells could be observed.Fluorescent spots of the same color were displayed at the positions corresponding to the hyperoside reference substance.[Conclusions]Establishing relatively complete quality standards for O.sinensis medicinal materials can provide a reference for the quality control of medicinal materials.
基金Supported by Traditional Chinese Medicine(Ethnic Medicine)Standard Improvement Project of Sichuan Medical Products Administration(510201202102305)Scientific Research Funded Project of Southwest Minzu University(2023KYZZ06N)。
文摘[Objectives]The paper was to establish the quality standard of Carpesium lipskyi,and to provide a scientific reference for its quality control and rational development and utilization.[Methods]Morphological identification,microscopic identification and thin layer chromatography(TLC)identification of the herbal samples were performed.The contents of moisture,total ash,acid-insoluble ash and alcohol-soluble extract of the herbal samples were determined,and their total flavonoid content was determined by UV-spectrophotometry.[Results]The average contents of moisture,total ash,acid-insoluble ash and alcohol-soluble extracts of 10 batches of C.lipskyi were 10.38%-12.27%,8.03%-14.72%,1.01%-3.06%and 20.84%-26.82%,respectively.The total flavonoids content ranged from 4.60%to 5.63%.[Conclusions]The established standard can provide a reference for the quality control of C.lipskyi.The tentative regulations stipulate that the moisture content of C.lipskyi shall not exceed 13.0%;the total ash content shall not exceed 15.0%;the acid-insoluble ash content shall not exceed 4.0%;the alcohol-soluble extract shall not be less than 16.0%;and the total flavonoids shall not be less than 3.0%.
基金Supported by Guangxi Key Research and Development Project(GK AB2203-5073)Guangxi TCM Appropriate Technology Development and Promotion Project(GZSY22-18)Research Project of Guangxi Administration of Traditional Chinese Medicine(GXZYZ20210209,GXZYA20220180).
文摘[Objectives]The paper was to establish the quality standard of Shenqi Qiangjing granules and to conduct routine inspection of granular dosage forms.[Methods]The particle size,moisture,loss on drying,dissolubility,content uniformity and microbial limit of Shenqi Qiangjing granules were detected.Radix Astragali,Herba Epimedii,Radix Dipsaci and Fructus Schisandrae Chinensis were qualitatively identified by thin layer chromatography(TLC).[Results]The particle size,moisture,loss on drying,dissolubility,content uniformity and microbial limit of Shenqi Qiangjing granules were all in line with the relevant regulations of Pharmacopoeia of the People's Republic of China(2020 edition).Radix Astragali,Herba Epimedii,Radix Dipsaci and Fructus Schisandrae Chinensis had clear fluorescent spots in TLC assay,and no such spots were found in negative control.[Conclusions]The method has the advantages of simple operation,accurate and reliable results,strong specificity and good repeatability,and can effectively control the quality of Shenqi Qiangjing granules.
基金Supported by Research on Water Quality Criteria for Aquatic Organism Protection and Water Quality Standards for Optimal Control of Pollutants in the Baiyangdian Basin(20374204D).
文摘Under the vision of development for the new era,China has entered a stage of high-quality economic development and an important window period in which we have the conditions and ability to address the prominent issue of economic development and ecological protection in a coordinated way.However,all kinds of environmental benchmark values in China are lacking and need to be constantly supplemented and improved.Therefore,exploring and putting forward a simple and efficient method for the transformation of environmental criteria into environmental standards is an important basis for the rapid establishment of relevant environmental criteria system and the effective promotion of the development of environmental standards system towards a scientific and reasonable direction.In this paper,the water environment is taken as the research object.By analyzing the research progress of environmental criteria and standards at home and abroad,and the foreign method of transforming environmental criteria into environmental standards,combined with the problems faced in the process of transforming environmental criteria into environmental standards in China,an effective method to transform China's environmental criteria into environmental standards is analyzed.After analysis and comparison,it is found that the pollution reduction accounting method could achieve their simple and efficient conversion.Under the premise of obtaining environmental criteria for certain pollutants,environmental criteria for certain pollutants could be obtained by distributing pollutants reduction costs,and accounting economic benefits after reaching standard,thus obtaining the environmental standard of this type of pollutant,which provides reference to determine the environmental standard limits of such pollutants.
文摘This is a pilot research project was prepared to assess the impact of implementing essential standardized nursing quality sensitive indicators in monitoring, evaluating, and controlling the nursing services and activities which implemented in daily nursing care works with the patients in a health institute, aiming for emphasizing the concept of “nursing quality sensitive indicators” which is valuable to elaborate nursing care performance, and for continuous upgrading of daily nursing care, which hopefully will result in more beneficial outcomes, and lesser negative or undesirable outcomes in all aspects of nursing care, and consequently the health care process, particularly regarding patient safety, patient satisfaction and nursing performance improvement. This pilot research project for the essential standardized nursing quality sensitive indicators was applied in intensive care unit (ICU) department in Qurayyat general hospital, and resulted in excellent improvement of all outcomes correlated with the essential standardized nursing quality sensitive indicators. These essential standardized nursing quality sensitive indicators are hopefully be accepted and accredited by the higher health authorities as standardized nursing quality sensitive indicators in health institutes.
基金supported in part by the University of Jaén and the Spanish Ministry of Economy, Industry and Competitiveness (PTA2015-11507-I MINECO)。
文摘This paper analyzed GPS data from the Topo-Iberia network spanning almost 12 years(2008-2020).The data quality information for all 26 Topo-Iberia stations is provided for the first time,complementing the Spanish Geological Survey’s storage work.Data analyses based on quality indicators obtained using TEQC have been carried out.The guidelines and data quality information from the IGS stations have been considered as the quality references,with the stations ALJI,EPCU,and TIOU standing out as the worst stations,while on the contrary,FUEN,PALM,PILA,and TRIA meet the quality requirements to become an IGS station.The relationship between the GPS data quality and their GAMIT-and Gipsy X-derived postfit ionosphere-free phase residuals has also been investigated,and the results reveal an inversely proportional relationship.It has been found that the stations showing an increase in elevation of the horizon line,also show an increase in cycle slips and multipath,are among the poorest quality stations,and among those with the highest postfit RMS of phase residuals.Moreover,the evolution of the vegetation around the antenna should be considered as it could cause a progressive loss of quality,which is not complying with the IGS standards.The quality assessment shows that the Topo-Iberia stations are appropriate for geodetic purposes,but permanent monitoring would be necessary to avoid the least possible loss of data and quality.In addition,a method to characterize the GNSS data quality is proposed.
基金supported by the National Natural Science Foundation of China,Nos.82130037(to CH),81971122(to CH),82171323(to WL)the Natural Science Foundation of Jiangsu Province of China,No.BK20201113(to WL)。
文摘The dramatic increase in intracranial pressure after subarachnoid hemorrhage leads to a decrease in cerebral perfusion pressure and a reduction in cerebral blood flow.Mitochondria are directly affected by direct factors such as ischemia,hypoxia,excitotoxicity,and toxicity of free hemoglobin and its degradation products,which trigger mitochondrial dysfunction.Dysfunctional mitochondria release large amounts of reactive oxygen species,inflammatory mediators,and apoptotic proteins that activate apoptotic pathways,further damaging cells.In response to this array of damage,cells have adopted multiple mitochondrial quality control mechanisms through evolution,including mitochondrial protein quality control,mitochondrial dynamics,mitophagy,mitochondrial biogenesis,and intercellular mitochondrial transfer,to maintain mitochondrial homeostasis under pathological conditions.Specific interventions targeting mitochondrial quality control mechanisms have emerged as promising therapeutic strategies for subarachnoid hemorrhage.This review provides an overview of recent research advances in mitochondrial pathophysiological processes after subarachnoid hemorrhage,particularly mitochondrial quality control mechanisms.It also presents potential therapeutic strategies to target mitochondrial quality control in subarachnoid hemorrhage.
基金The authors are grateful for support from the National Social Science Fund of China(21AJL015).
文摘The Rural Minimum Living Standard Guarantee(Rural Dibao)is an important unconditional cash transfer program to alleviate poverty in rural China.Despite the importance of children’s nutrition in breaking poverty cycles,little is known about the impact of Rural Dibao on child nutrition outcomes.Using China Family Panel Studies(CFPS),this paper examines the effects of Rural Dibao on child nutrition outcomes and investigates potential pathways and heterogeneous effects.We exploit propensity score matching and difference-in-differences techniques to evaluate the effects of the Rural Dibao program on child nutrition outcomes.Our results suggest that Rural Dibao significantly impacts the nutrition outcomes of children up to 15 years of age.Specifically,our results suggest that Rural Dibao improves child height-to-age z-scores by 1.05 standard deviations and lowers the probability of stunting by 11.9 percentage points.Additional analyses suggest that increased protein intake is the main pathway through which Rural Dibao participation contributes to better nutrition outcomes.We also find that the effect of the program is more pronounced among girls,children who are non-left-behind or live with highly educated mothers,and those from low-income families and poor areas.Our findings suggest that Rural Dibao participation helps improve child nutrition outcomes through improving diet quality.
基金National Key Research and Development Program of China,Grant/Award Number:2021YFF0702402National Natural Science Foundation of China,Grant/Award Number:32070531。
文摘Background:The Mongolian gerbil is an excellent laboratory animal for preparing the cerebral ischemia model due to its inherent deficiency in the circle of Willis.However,the low incidence and unpredictability of symptoms are caused by numerous complex variant types of the circle.Additionally,the lack of an evaluation system for the cer-ebral ischemia/reperfusion(I/R)model of gerbils has shackled the application of this model.Methods:We created a symptom-oriented principle and detailed neurobehavioral scoring criteria.At different time points of reperfusion,we analyzed the alteration in locomotion by rotarod test and grip force score,infarct volume by triphenyltetrazo-lium chloride(TTC)staining,neuron loss using Nissl staining,and histological charac-teristics using hematoxylin-eosin(H&E)straining.Results:With a successful model rate of 56%,32 of the 57 gerbils operated by our method harbored typical features of cerebral I/R injury,and the mortality rate in the male gerbils was significantly higher than that in the female gerbils.The suc-cessfully prepared I/R gerbils demonstrated a significant reduction in motility and grip strength at 1 day after reperfusion;formed obvious infarction;exhibited typi-cal pathological features,such as tissue edema,neuronal atrophy and death,and vacuolated structures;and were partially recovered with the extension of reperfu-sion time.Conclusion:This study developed a new method for the unilateral common carotid artery ligation I/R model of gerbil and established a standardized evaluation system for this model,which could provide a new cerebral I/R model of gerbils with more practical applications.
基金This research was supported by the National Natural Science Foundation of China(32061143034,32161143028)Tibet Regional Science and Technology Collaborative Innovation Project(QYXTZX-NQ2021-01)Fundamental Research Funds for the Central Universities(lzujbky-2022-ct04).
文摘Background Providing high-quality roughage is crucial for improvement of ruminant production because it is an essential component of their feed.Our previous study showed that feeding bio-fermented rice straw(BF)improved the feed intake and weight gain of sheep.However,it remains unclear why feeding BF to sheep increased their feed intake and weight gain.Therefore,the purposes of this research were to investigate how the rumen micro-biota and serum metabolome are dynamically changing after feeding BF,as well as how their changes influence the feed intake,digestibility,nutrient transport,meat quality and growth performances of sheep.Twelve growing Hu sheep were allocated into 3 groups:alfalfa hay fed group(AH:positive control),rice straw fed group(RS:negative control)and BF fed group(BF:treatment).Samples of rumen content,blood,rumen epithelium,muscle,feed offered and refusals were collected for the subsequent analysis.Results Feeding BF changed the microbial community and rumen fermentation,particularly increasing(P<0.05)relative abundance of Prevotella and propionate production,and decreasing(P<0.05)enteric methane yield.The histomorphology(height,width,area and thickness)of rumen papillae and gene expression for carbohydrate trans-port(MCT1),tight junction(claudin-1,claudin-4),and cell proliferation(CDK4,Cyclin A2,Cyclin E1)were improved(P<0.05)in sheep fed BF.Additionally,serum metabolome was also dynamically changed,which led to up-regulating(P<0.05)the primary bile acid biosynthesis and biosynthesis of unsaturated fatty acid in sheep fed BF.As a result,the higher(P<0.05)feed intake,digestibility,growth rate,feed efficiency,meat quality and mono-unsaturated fatty acid concentration in muscle,and the lower(P<0.05)feed cost per kg of live weight were achieved by feeding BF.Conclusions Feeding BF improved the growth performances and meat quality of sheep and reduced their feed cost.Therefore,bio-fermentation of rice straw could be an innovative way for improving ruminant production with mini-mizing production costs.
基金supported by the Ministry of Agriculture and Rural Affairs,China(2023ZD04039-01)the National Natural Science Foundation of China(32172008)the Leading Innovative and Entrepreneur Team Introduction Program of Zhejiang,China(2019R01002)。
文摘Pectin is a major constituent of the plant cell wall.Pectate lyase(PEL,EC 4.2.2.2)uses anti-β-elimination chemistry to cleave theα-1,4 glycosidic linkage in the homogalacturonan region of pectin.However,limited information is available on the comprehensive and evolutionary analysis of PELs in the Malvaceae.In this study,we identified 597PEL genes from 10 Malvaceae species.Phylogenetic and motif analyses revealed that these PELs are classified into six subfamilies:Clades I,II,III,IV,Va,and Vb.The two largest subfamilies,Clades I and II,contained 237 and222 PEL members,respectively.The members of Clades Va and Vb only contained four or five motifs,far fewer than the other subfamilies.Gene duplication analysis showed that segmental duplication played a crucial role in the expansion of the PEL gene family in Gossypium species.The PELs from Clades I,IV,Va,and Vb were expressed during the fiber elongation stage,but nearly all PEL genes from Clades II and III showed no expression in any of the investigated fiber developmental stages.We further performed single-gene haplotype association analysis in 2,001G.hirsutum accessions and 229 G.barbadense accessions.Interestingly,14 PELs were significantly associated with fiber length and strength traits in G.barbadense with superior fiber quality,while only eight GhPEL genes were found to be significantly associated with fiber quality traits in G.hirsutum.Our findings provide important information for further evolutionary and functional research on the PEL gene family members and their potential use for fiber quality improvement in cotton.
基金This study was supported in part by the National Natural Science Foundation of China(71973136 and 72061147002)the 2115 Talent Development Program of China Agricultural University.
文摘Over the past few decades,the Internet has rapidly diffused across China.The spread of the Internet has had a profound economic and social impact on Chinese rural areas.Existing research shows that Internet access significantly impacts agricultural production and improves smallholder farmers’income.Beyond these,the Internet can affect other dimensions of social welfare.However,research about the impact of Internet access on dietary quality in rural China remains scarce.This study utilizes multi-period panel data from Fixed Observation Point in rural China from 2009 to 2015 to estimate the impact of Internet access on dietary quality and food consumption of rural households and conducts a causal analysis.Regression models with time and household fixed effects allow robust estimation while reducing potential issues of unobserved heterogeneity.The estimates show that Internet access has significantly increased rural household dietary quality(measured by the Chinese Diet Balance Index).Further research finds that Internet access has increased the consumption of animal products,such as aquatic and dairy products.We also examine the underlying mechanisms.Internet access improves dietary quality and food consumption mainly through increasing household income and food expenditure.These results encourage the promotion of Internet access as a valuable tool for nutritional improvements,especially in rural areas.
文摘Objective:To investigate the relationship between ambient sulfur dioxide(SO2)exposure and semen quality parameters.Methods:A systematic literature search was conducted to identify relevant studies investigating the association between SO2 exposure and semen quality parameters.This search encompassed the timeframe from January 2000 to May 2023 and included electronic databases such as Web of Science,Google Scholar,PubMed,Cochrane,and Scopus.Pooled effect estimates with 95%confidence intervals(CI)were calculated using percent changes(PC).The meta-analysis included seven studies with 6711 participants and 15087 semen samples.Results:The results revealed a significant negative association between ambient SO2 exposure and certain semen quality parameters.In particular,SO2 exposure was associated with a significant decrease in progressive motility(PC=0.032;95%CI:-0.063 to-0.001;P=0.044)and sperm concentration(PC=-0.020;95%CI:-0.036 to-0.005;P=0.012).However,no statistically significant associations were observed for total sperm count(PC=-0.038;95%CI:-0.079 to 0.003;P=0.070),seminal fluid volume(PC=-0.009;95%CI:-0.048 to-0.030;P=0.662)and sperm motility(PC=-0.17;95%CI:-0.363 to 0.022;P=0.830).In addition,the results of the subgroup analysis revealed specific variables that were associated with the decrease in relevant sperm parameters.Conclusions:This systematic review and meta-analysis provides compelling evidence supporting a consistent negative association between exposure to ambient SO2 and semen quality parameters.
文摘BACKGROUND Hormone replacement therapy is an effective treatment strategy for the management of symptoms in naturally menopausal women.However,some patients report experiencing adverse effects.AIM To analyze the effects of hormone replacement therapy in menopausal female patients.METHODS A total of 152 menopausal female patients admitted to the Gynecology Department of the Ganzhou Maternal and Child Health Hospital between January 2021 and December 2023 were divided into the observation group(n=76,conventional treatment+hormone replacement therapy)and the control group(n=76,conventional treatment only)via random casting.The improvement observed in the following items were compared between the groups:Kupperman menopausal index(KMI),emotional state[The Positive and Negative Affect Scale(PANAS)],sleep quality[Self-Rating Scale of Sleep(SRSS)],treatment effectiveness,and treatment safety.RESULTS The modified KMI and SRSS scores of the observation group were lower than those of the control group after three rounds of treatment.The improvement in the PANAS score observed in the observation group was greater than that observed in the control group(P<0.05).The total treatment effectivity rate in the observation group was higher than that in the control group(86.84%vs 96.05%,χ2=4.121,P=0.042).The incidence rate of adverse reactions in the two groups was comparable(6.58%vs 9.21%,χ2=0.361,P=0.547).CONCLUSION Hormone replacement therapy effectively improved the clinical symptoms,actively channeled negative emotions,and improved the quality of sleep in menopausal patients,indicating its effectiveness and safety.