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Long-term effects of early antibiotic intervention on blood parameters,apparent nutrient digestibility, and fecal microbial fermentation profile in pigs with different dietary protein levels 被引量:9
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作者 Miao Yu Chuanjian Zhang +4 位作者 Yuxiang Yang Chunlong Mu Yong Su Kaifan Yu Weiyun Zhu 《Journal of Animal Science and Biotechnology》 SCIE CAS CSCD 2018年第1期175-186,共12页
Backgroud: This study aimed to determine the effects of early antibiotic intervention(EAI) on subsequent blood parameters, apparent nutrient digestibility, and fecal fermentation profile in pigs with different diet... Backgroud: This study aimed to determine the effects of early antibiotic intervention(EAI) on subsequent blood parameters, apparent nutrient digestibility, and fecal fermentation profile in pigs with different dietary crude protein(CP) levels. Eighteen litters of piglets(total 212) were randomly allocated to 2 groups and were fed a creep feed diet with or without in-feed antibiotics(olaquindox, oxytetracycline calcium and kitasamycin) from postnatal d 7 to d 42. On d 42, the piglets within the control or antibiotic group were mixed, respectively, and then further randomly assigned to a normal-(20%, 18%, and 14% CP from d 42 to d 77, d 77 to d 120, and d 120 to d 185,respectively) or a low-CP diet(16%, 14%, and 10% CP from d 42 to d 77, d 77 to d 120, and d 120 to d 185,respectively), generating 4 groups. On d 77(short-term) and d 185(long-term), serum and fecal samples were obtained for blood parameters, microbial composition and microbial metabolism analysis.Results: EAI increased(P 〈 0.05) albumin and glucose concentrations in low-CP diet on d 77, and increased(P 〈 0.05) urea concentration in normal-CP diet. On d 185, EAI increased(P 〈 0.05) globulin concentration in normal-CP diets, but decreased glucose concentration. For nutrient digestibility, EAI increased(P 〈 0.05)digestibility of CP on d 77. For fecal microbiota, the EAI as well as low-CP diet decreased(P 〈 0.05) E. coli count on d 77. For fecal metabolites, on d 77, EAI decreased(P 〈 0.05) total amines concentration but increased skatole concentration in low-CP diet. On d 185, the EAI increased(P 〈 0.05) putrescine and total amines concentrations in low-CP diets but reduced(P 〈 0.05) in the normal-CP diets. The low-CP diet decreased the concentrations of these compounds.Conclusions: Collectively, these results indicate that EAI has short-term effects on the blood parameters and fecal microbial fermentation profile. The effects of EAI varied between CP levels, which was characterized by the significant alteration of glucose and putrescine concentration. 展开更多
关键词 Antibiotics long term effect ANTIMICROBIAL Blood parameters Low protein diet Metabolites Microbiota
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LONG-TERM EFFECT OF HOMOHARRINGTONINE ON CHRONIC GRANULOCYTIC LEUKEMIA 被引量:1
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作者 李玉峰 朱家斌 +4 位作者 王春玲 丁帮和 李元媛 宣恒报 钱墨生 《Chinese Journal of Cancer Research》 SCIE CAS CSCD 2005年第2期150-153,共4页
Objective: To observe the long-term effect of homoharringtonine (HHT) on chronic granulocytic leukemia (CGL) and its pharmacological mechanism. Methods: 76 patients with newly diagnosed early chronic phase CGL receive... Objective: To observe the long-term effect of homoharringtonine (HHT) on chronic granulocytic leukemia (CGL) and its pharmacological mechanism. Methods: 76 patients with newly diagnosed early chronic phase CGL received treatment of merely 1.5 mg/m2 daily HHT for induction remission and long-term maintenance treatment. The apoptosis rate of bone marrow CD34+ cells induced by HHT was assayed with flow cytometer. Results: 86.8% patients achieved CHR, 13.2% patients PHR and 31.8% patients got cytogenetic response in HHT treatment group, which was longer than 31 (8-54) months in hydroxyurea (HU) group (P<0.05). The effect of apoptosis induction HHT was stronger on CGL-CP patients bone marrow CD34+ cells than on normal person bone marrow CD34+ cells. Conclusion: HHT is a very effective drug for remission induction and long-term maintenance treatment in early chronic phase CGL patients. 展开更多
关键词 HOMOHARRINGTONINE Chronic granulocytic leukemia long-term effect CD34+ cells
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Evolution of interfacial dislocation networks during long term thermal aging in Ni-based single crystal superalloy DD5 被引量:2
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作者 Qiang Gao Li-rong Liu +3 位作者 Xiao-hua Tang Zhi-jiang Peng Ming-jun Zhang Su-gui Tian 《China Foundry》 SCIE 2019年第1期14-22,共9页
Interfacial dislocations found in single crystal superalloys after long term thermal aging have an important effect on mechanical properties. Long term thermal aging tests for DD5 single crystal superalloy were carrie... Interfacial dislocations found in single crystal superalloys after long term thermal aging have an important effect on mechanical properties. Long term thermal aging tests for DD5 single crystal superalloy were carried out at 1,100 ℃ for 20, 100, 200, 500 and 1000 h, and then cooled by air. The effect of long term thermal aging on the dislocation networks at the γ/γ' interfaces was investigated by FE-SEM. Results showed that during the long term thermal aging at 1,100 ℃, misfit dislocations formed firstly and then reorientation in the(001) interfacial planes occurred. Different types of square or rectangular dislocation network form by dislocation reaction. Square dislocation networks consisting of four groups of dislocations can transform into octagonal dislocation networks, and then form another square dislocation network by dislocation reaction. Rectangular dislocation networks can also transform into hexagonal dislocation networks. The interfacial dislocation networks promote the γ' phase rafting process. The dislocation networks spacings become smaller and smaller, leading to the effective lattice misfit increasing from-0.10% to-0.32%. 展开更多
关键词 DD5 single crystal SUPERALLOY INTERFACIAL dislocations long term thermal AGING effective LATTICE MISFIT
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Long-term acupuncture treatment has a multitargeting regulation on multiple brain regions in rats with Alzheimer's disease:a positron emission tomography study 被引量:3
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作者 Yang-jia Lu Xiao-wen Cai +9 位作者 Gui-feng Zhang Yong Huang Chun-zhi Tang Bao-ci Shan Shao-yang Cui Jun-qi Chen Shan-shan Qu Zheng Zhong Xin-sheng Lai Genevieve Zara Steiner 《Neural Regeneration Research》 SCIE CAS CSCD 2017年第7期1159-1165,共7页
The acute effect of acupuncture on Alzheimer's disease,i.e.,on brain activation during treatment,has been reported.However,the effect of long-term acupuncture on brain activation in Alzheimer's disease is unclear.Th... The acute effect of acupuncture on Alzheimer's disease,i.e.,on brain activation during treatment,has been reported.However,the effect of long-term acupuncture on brain activation in Alzheimer's disease is unclear.Therefore,in this study,we performed long-term needling at Zusanli(ST36)or a sham point(1.5 mm lateral to ST36)in a rat Alzheimer's disease model,for 30 minutes,once per day,for 30 days.The rats underwent 18F-fluorodeoxyglucose positron emission tomography scanning.Positron emission tomography images were processed with SPM2.The brain areas activated after needling at ST36 included the left hippocampus,the left orbital cortex,the left infralimbic cortex,the left olfactory cortex,the left cerebellum and the left pons.In the sham-point group,the activated regions were similar to those in the ST36 group.However,the ST36 group showed greater activation in the cerebellum and pons than the sham-point group.These findings suggest that long-term acupuncture treatment has targeted regulatory effects on multiple brain regions in rats with Alzheimer's disease. 展开更多
关键词 nerve regeneration NEURODEGENERATION ACUPUNCTURE Zusanli (ST36) Alzheimer's disease long-term treatment positron emissiontomography rat mechanism targeting effect compensation multi-target regulation neural regeneration
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Assessment of Long-Term Compost Application on Physical, Chemical, and Biological Properties, as Well as Fertility, of Soil in a Field Subjected to Double Cropping 被引量:5
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作者 Yukiko Yanagi Haruo Shindo 《Agricultural Sciences》 2016年第1期30-43,共14页
The aim of this article was to assess the influence of long-term application of compost on the physical, chemical, and biological properties, as well as the fertility, of soil in a field subjected to double cropping (... The aim of this article was to assess the influence of long-term application of compost on the physical, chemical, and biological properties, as well as the fertility, of soil in a field subjected to double cropping (paddy rice and barley), mainly by integrating previous studies of the effects of compost and manure on soil qualities. Continuous compost application, especially at a high level (30 Mg·ha<sup>-1</sup>·y<sup>-1</sup>), into the double cropping soils increased the activities of organic C-, N-, and P-decomposing enzymes and the contents of organic C, total N, and microbial biomass N, as well as the cation exchange capacity, thereby contributing to the enhancement of soil fertility. Also, the compost application increased the degree of water-stable soil macroaggregation (>0.25 mm), which was correlated significantly (r > 0.950, p < 0.05) with the contents of hydrolyzable carbohydrates (with negative charge) and active Al (with positive charge), and resulted in the modification of soil physical properties. Furthermore, the application increased the amount of soil organic matter, including humic acid with a low degree of darkening and fulvic acid, and contributed to C sequestration and storage. Physical fractionation of soil indicated that about 60% of soil organic C was distributed in the silt-sized (2 - 20 μm) aggregate and clay-sized (<2 μm) aggregate fractions, while about 30% existed in the decayed plant fractions (53 - 2000 μm). The results obtained unambiguously indicate that long-term application of compost can improve soil qualities in the field subjected to double cropping, depending on the amount applied. 展开更多
关键词 Beneficial effect Double Cropping Soil long-term Compost Application Soil Quality
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Thermomechanical analysis of long-term global modal and local deformation measurements of the Kishwaukee Bridge using the bootstrap
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作者 George M.Lloyd Ming L.Wang 《Earthquake Engineering and Engineering Vibration》 SCIE EI CSCD 2004年第1期107-115,共9页
In this paper we present a comparative analysis of global frequency and local deformation data for a large concrete bridge. The asymptotic probability distributions of the central statistics are presented, and compare... In this paper we present a comparative analysis of global frequency and local deformation data for a large concrete bridge. The asymptotic probability distributions of the central statistics are presented, and compared with empirical bootstrap estimates. Bootstrapped distributions are calculated from reference data obtained during 1999–2000 and used to develop change-point alarm criteria for the structure, using reasonable sensitivity measures developed from FEM simulations and structural analysis. The implications of the frequency data are discussed in conjunction with the strain and displacement measurements in order to discern if the load carrying capacity of the bridge has been affected. The critical need for more advanced temperature compensation models for large structures continually in thermal disequilibrium is discussed. 展开更多
关键词 thermomechanical effects bootstrap methods local & global monitoring long term measurement concrete bridge
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Long-term efficacy of capecitabine plus oxaliplatin chemotherapy on stage Ⅲ colon cancer: A meta-analysis
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作者 Hong-Tao Fu Ying-Ying Xu +5 位作者 Jing-Jing Tian Jia-Xin Fu Shao-Ling Nie Yan-Yan Tang Ping Chen Liang Zong 《World Journal of Meta-Analysis》 2020年第1期27-40,共14页
BACKGROUND Many clinical studies for the long-term survival or efficacy of capecitabine plus oxaliplatin(XELOX)in colon cancer have already been studied,but its clinical benefit is controversial.AIM To evaluate the lo... BACKGROUND Many clinical studies for the long-term survival or efficacy of capecitabine plus oxaliplatin(XELOX)in colon cancer have already been studied,but its clinical benefit is controversial.AIM To evaluate the long-term efficacy of XELOX regimen in comparison with other adjuvant chemotherapy protocols in colon cancer.METHODS By searching the PubMed,EMBASE and Cochrane databases,a total of 12 randomized controlled trials involving 6698 stageⅢcolon cancer cases(XELOX protocol:n=3298 cases;other adjuvant chemotherapy protocol:n=3268 cases)were included.The parameter outcomes included the overall survival and the disease-free survival.The quality control of selected literature was based on the Jadad scale and the GRADE system.RESULTS In comparison to other adjuvant chemotherapy regimen,XELOX regimen showed a better overall survival(odds ratio=1.29,95% confidence interval:1.15-1.44,P<0.0001)and a better disease-free survival(odds ratio=1.32,95%confidence interval:1.18-1.46,P<0.0001)for colon cancer patients,suggesting the XELOX regimen can be a good option for postoperative treatment of stage III colon cancer.CONCLUSION The XELOX regimen can be a preferred option for adjuvant treatment of stageⅢcolon cancer after surgery. 展开更多
关键词 Capecitabine plus oxaliplatin chemotherapy Colon cancer META-ANALYSIS long-term effect
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Long-term radiofrequency electromagnetic fields exposure attenuates cognitive dysfunction in 5×FAD mice by regulating microglial function
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作者 Yeonghoon Son Hye-Jin Park +3 位作者 Ye Ji Jeong Hyung-Do Choi Nam Kim Hae-June Lee 《Neural Regeneration Research》 SCIE CAS CSCD 2023年第11期2497-2503,共7页
We have previously found that long-term effects of exposure to radiofrequency electromagnetic fields in 5xFAD mice with severe late-stage Alzheimer’s disease reduced both amyloid-βdeposition and glial activation,inc... We have previously found that long-term effects of exposure to radiofrequency electromagnetic fields in 5xFAD mice with severe late-stage Alzheimer’s disease reduced both amyloid-βdeposition and glial activation,including microglia.To examine whether this therapeutic effect is due to the regulation of activated microglia,we analyzed mic roglial gene expression profiles and the existence of microglia in the brain in this study.5xFAD mice at the age of 1.5 months were assigned to sham-and radiofrequency electromagnetic fields-exposed groups and then animals were exposed to 1950 MHz radiofrequency electromagnetic fields at a specific absorption rate of 5 W/kg for 2 hours/day and 5 days/week for 6 months.We conducted behavioral tests including the object recognition and Y-maze tests and molecular and histopathological analysis of amyloid precursor protein/a myloid-beta metabolism in brain tissue.We confirmed that radiofrequency electromagnetic field exposure for 6 months ameliorated cognitive impairment and amyloid-βdeposition.The expression levels of Iba1(pan-microglial marker)and colony-stimulating factor 1 receptor(CSF1R;regulates microglial prolife ration)in the hippocampus in 5xFAD mice treated with radiofrequency electromagnetic fields were significantly reduced compared with those of the sham-exposed group.Subsequently,we analyzed the expression levels of genes related to mic rogliosis and microglial function in the radiofrequency electromagnetic fields-exposed group compared to those of a CSF1R inhibitor(PLX3397)-treated group.Both radiofrequency electromagnetic fields and PLX3397 suppressed the levels of genes related to microgliosis(Csf1r,CD68,and Ccl6)and pro-inflammatory cytokine interleukin-1β.N otably,the expression levels of genes related to mic roglial function,including Trem2,Fcgr1α,Ctss,and Spi1,were decreased after long-term radiofrequency electromagnetic field exposure,which was also observed in response to microglial suppression by PLX3397.These results showed that radiofrequency electromagnetic fields ameliorated amyloid-βpathology and cognitive impairment by suppressing amyloid-βdeposition-induced microgliosis and their key regulator,CSF1R. 展开更多
关键词 5×FAD Alzheimer’s disease CSF1R long term exposure microglial function NEUROINFLAMMATION radiofrequency electromagnetic fields therapeutic effect
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Kaposi’s Sarcoma Associated with Gastrointestinal Bleeding: A Rare Complication of Long-Term Corticosteroid Therapy
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作者 Angèle Azon-Kouanou Djimon Marcel Zannou +5 位作者 Kouessi Anthelme Agbodande Cossi Angelo Attinsounon Albert Dovonou Roberto Dossou Torès Kouassi Prudencio Dédé Priscillia Tatiana Baglo Fabien Houngbe 《Open Journal of Internal Medicine》 2015年第4期75-80,共6页
Corticosteroid therapy has revolutionized the treatment of many diseases in medicine. The most concerned diseases are chronic inflammatory diseases. Its use may be either short-term or long-term, thus generating sever... Corticosteroid therapy has revolutionized the treatment of many diseases in medicine. The most concerned diseases are chronic inflammatory diseases. Its use may be either short-term or long-term, thus generating several side effects, some of which are conventional and known, but others are rare, such as Kaposi’s sarcoma. We report here a particular clinical observation. Observation: This is a patient of 37 years, who consults in Internal Medicine for the treatment of mucocutaneous lesions, papular nodular, hyper pigmented, budding and disseminated appeared after six months of corticosteroid therapy. This treatment was introduced for the treatment of acoustic neurinoma. The patient is not diabetic or alcoholic and has a negative HIV status. The diagnosis of Kaposi’s sarcoma was made by histology of biopsied skin lesions which concluded for a regular proliferation without atypia spindle cell or mitosis. The lesions persisted over a month despite discontinuation of corticosteroid therapy. Treatment with Bleomycin was necessary. The outcome was favorable under treatment with progressive and complete disappearance of lesions after 15 treatments. Conclusion: The classical side effects of long-term corticosteroid are known, but Kaposi sarcoma complicating long-term corticosteroid is rare in the literature. It is vital that any long-term corticosteroid should be the subject of careful and regular monitoring. 展开更多
关键词 KAPOSI SARCOMA long-term CORTICOSTEROID RARE ADVERSE effects
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Study on the operation effect of long term care insurance system in Qingdao
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作者 WU Yuhua 《International English Education Research》 2016年第6期65-67,共3页
Population aging has become a global social problem, the problem in our country has become the core of the aging problem. With the gradual aging of the elderly, loss of energy, loss of energy has become the norm for t... Population aging has become a global social problem, the problem in our country has become the core of the aging problem. With the gradual aging of the elderly, loss of energy, loss of energy has become the norm for the elderly or sick elderly. According to the Ministry of Civil Affairs statistics, as of the end of 2014, the number of disabled elderly in China reached 35 million, about 90% of the disabled elderly need professional care services and professional treatment to ease the pain. In order to deal with the social problems brought about by the aging of the population, in July 1, 2012, Qingdao City, the first in the country to establish a long-term health care insurance system, has taken a key step to crack the problem of aging. In this paper, the situation of Qingdao long term care insurance system as the research object, taking Qingdao city as study sites, according to statistical data analysis of the implementation effect of long-term local health care policy, and through questionnaires and interviews in the form of local residents to participate in the investigation of awareness, and perception. At the same time, the results of the survey on long-term health care insurance system in Qingdao, the operation effect of the overall analysis. 展开更多
关键词 long term health care insurance system Qingdao City operation effect long term care
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A LONG TERM EFFECT EVALUATION OF TOTAL HIP PROSTHETIC REPLACEMENT
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《Chinese Journal of Biomedical Engineering(English Edition)》 1996年第1期43-46,共4页
ALONGTERMEFFECTEVALUATIONOFTOTALHIPPROSTHETICREPLACEMENTWangJianandHeZhijng(OrthopaedicDepartmentof208thHosp... ALONGTERMEFFECTEVALUATIONOFTOTALHIPPROSTHETICREPLACEMENTWangJianandHeZhijng(OrthopaedicDepartmentof208thHospital,ChangChun,13... 展开更多
关键词 A long term effect EVALUATION OF TOTAL HIP TOTAL PROSTHETIC REPLACEMENT
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农村生活污水生物-生态组合工艺净化效果及长效管理研究 被引量:1
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作者 诸超超 金秋 +4 位作者 陈菁 杨盛赟 彭鑫鑫 沙玥 李伟 《广西科学》 CAS 北大核心 2024年第2期357-366,共10页
相比城镇地区,农村生活污水排放分散、基础处理设施薄弱、管理维护难度大,因此本研究采用“厌氧池+生物滤池+潜流人工湿地(简称“人工湿地”)+氧化塘”的组合工艺,考察分析组合工艺各处理单元对广西桂林农村地区各污染物的去除特性。结... 相比城镇地区,农村生活污水排放分散、基础处理设施薄弱、管理维护难度大,因此本研究采用“厌氧池+生物滤池+潜流人工湿地(简称“人工湿地”)+氧化塘”的组合工艺,考察分析组合工艺各处理单元对广西桂林农村地区各污染物的去除特性。结果显示,组合工艺中生物滤池对化学需氧量(COD)、氨氮(NH_(3)-N)的去除效果最好,夏季去除贡献率分别为75.36%和66.46%,冬季分别为67.96%和57.13%;而人工湿地对总氮(TN)、总磷(TP)的去除贡献率最大,夏季去除贡献率分别为65.08%和63.97%,冬季分别为53.15%和62.87%,并且不论夏季还是冬季,芦苇混合美人蕉湿地与菖蒲混合鸢尾湿地对COD、TN、NH_(3)-N及TP去除效果均较好,二者的出水浓度均能满足一级B排放标准;氧化塘作为最后的处理单元,各生态净化功能区深度去除污染物,其中水生植物区对于TN、TP及NH_(3)-N的平均去除率最高,水生动物区则在COD的去除方面有明显的优势,夏、冬季氧化塘平均出水浓度均能较稳定达到一级A排放标准。另外,针对农村污水设施对污染物去除率随运行年限延长而下降的现象,提出对组合工艺各处理单元加强防堵塞和及时收获植物动物的长效管理建议,为保障污水处理设施长久治污效果提供参考。 展开更多
关键词 农村生活污水 生物生态组合处理 季节效应 去除效率 长效管理
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MANUAL ACUPUNCTURE PRODUCES LONG TERM INHIBITION OF THE NOCICEPTIVE TRANSMISSION TO WIDE DYNAMIC RANGE NEURONS IN THE SPINAL CORD OF THE RAT 被引量:1
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作者 闫剑群 《Journal of Pharmaceutical Analysis》 CAS 1997年第1期1-6,共6页
singe unit discharge recordings were made from 42 WDR neurons in spinal dorsal horn in the rat. These neurons could he driven by electrical stimull activiting innocuous and noxious afferent fibres in the ipsilateral p... singe unit discharge recordings were made from 42 WDR neurons in spinal dorsal horn in the rat. These neurons could he driven by electrical stimull activiting innocuous and noxious afferent fibres in the ipsilateral plantar nerve. Traditional manual acupuncture delivered at the local acupoints Zusanli, Chengshan, Kunlun and Yongquan induced a strong inhibition or the C-fiber response. in 19 of 42 neurons obtained but did not after the A-fibre response of the neurons. The inhibition of the fibre response outlasted the period of acupuncture for more than 30 min. Neither Anor C-fibre responses in the remaining 23 neurous could be affected by manual acupuncture. These results suggest that the acupuncture stimulation specifically influences nociceptive nociceptive transmission,maybe through a presynaptic action,Furthermore, the fact that the inhibitory effect outlasts the stimulation by more than 30 min indicates that either a neuromodulatory ,presumably peptidergic action is at hand or that a temporary synaptic modification occurs in the spinal dorsal horn. 展开更多
关键词 manual acupuncture rat dorsal horn WDR neurons C-fibre response A-fibre response INHIBITION long-term effect
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干湿耳状态下耳内镜下耳屏软骨-软骨膜Ⅰ型鼓室成形术远期疗效比较
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作者 黄献明 覃雪君 谭宇敏 《实用医院临床杂志》 2024年第5期157-160,共4页
目的比较分析干湿耳状态下耳内镜下耳屏软骨-软骨膜Ⅰ型鼓室成形术远期疗效。方法选取2018年1月至2019年1月在我院就诊的90例慢性化脓性中耳炎患者,其中干耳组50例、湿耳组40例。两组均在耳内镜下行耳屏软骨-软骨膜Ⅰ型鼓室成形术治疗,... 目的比较分析干湿耳状态下耳内镜下耳屏软骨-软骨膜Ⅰ型鼓室成形术远期疗效。方法选取2018年1月至2019年1月在我院就诊的90例慢性化脓性中耳炎患者,其中干耳组50例、湿耳组40例。两组均在耳内镜下行耳屏软骨-软骨膜Ⅰ型鼓室成形术治疗,比较两组术后鼓膜愈合、并发症发生情况、手术前后气导与骨气导变化情况及复发情况。结果干耳组、湿耳组鼓膜愈合率分别为98.0%、95.0%,差异无统计学意义(P>0.05)。两组术后气导较术前明显提高,骨气导差较术前明显下降,差异有统计学意义(P<0.05);术后6月、术后1年、术后2年优于术前(P<0.05),术后3年与术后2年比较,差异无统计学意义(P>0.05)。两组间术后气导及骨气导差比较,差异无统计学意义(P>0.05)。两组术后并发症及复发率比较,差异均无统计学意义(P>0.05)。结论在干耳与湿耳状态下耳内镜下耳屏软骨-软骨膜I型鼓室成形术均可有效修复鼓膜,无明显并发症,且均远期听力疗效稳定,复发率均较低。 展开更多
关键词 干耳 湿耳 耳屏软骨-软骨膜 Ⅰ型鼓室成形术 鼓膜修复 远期疗效
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农民工长期居留意愿的年龄-时期-队列效应分析
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作者 杨舒雯 詹韵秋 《西部经济管理论坛》 2024年第1期1-12,共12页
农民工是推动中国城镇化的动力源泉。农民工的城市长期居留意愿能在一定程度上反映城镇化质量,对其长期居留意愿水平及变动进行研究具有重要意义。基于2012—2018年CMDS数据,文章使用APC交叉分类随机效应模型分析农民工长期居留意愿在... 农民工是推动中国城镇化的动力源泉。农民工的城市长期居留意愿能在一定程度上反映城镇化质量,对其长期居留意愿水平及变动进行研究具有重要意义。基于2012—2018年CMDS数据,文章使用APC交叉分类随机效应模型分析农民工长期居留意愿在年龄、时期和队列三个维度上的变化趋势。研究发现:(1)农民工年龄对其长期居留意愿的影响呈倒“U”形分布。(2)从时期维度来看,近年来农民工长期居留意愿整体呈下降趋势。(3)从队列差异来看,长期居留意愿呈现出“两高两低”的特征。(4)性别、受教育程度、就业身份等因素具有不同的队列变迁趋势。提升农民工长期居留意愿应注重群体间的差异性,推动农民工融入城市,推动农民工市民化,进而实现高质量城镇化。 展开更多
关键词 农民工 长期居留意愿 年龄效应 时期效应 队列效应
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ff-IMRT与HT对宫颈癌患者近远期疗效及不良反应的影响
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作者 王鹏飞 钱玉红 张慧敏 《实用癌症杂志》 2024年第5期841-844,共4页
目的探讨固定野调强放射治疗(ff-IMRT)与螺旋断层放射治疗(HT)对宫颈癌患者近远期疗效及不良反应的影响。方法回顾性分析60例宫颈癌患者资料,根据其放疗方案将其分为IMRT组(ff-IMRT+同步化疗,n=28)和HT组(HT+同步化疗,n=32)。比较两组... 目的探讨固定野调强放射治疗(ff-IMRT)与螺旋断层放射治疗(HT)对宫颈癌患者近远期疗效及不良反应的影响。方法回顾性分析60例宫颈癌患者资料,根据其放疗方案将其分为IMRT组(ff-IMRT+同步化疗,n=28)和HT组(HT+同步化疗,n=32)。比较两组近远期疗效、治疗期间不良反应发生情况、放疗靶区剂量分布情况。结果两组近期疗效差异无统计学意义(P>0.05);HT组计划靶区适形度指数高于IMRT组,均匀性指数和靶区最大剂量低于IMRT组(P<0.05),靶区平均剂量两组间差异无统计学意义(P>0.05);HT组消化道不良反应和泌尿系统不良反应发生率分别为40.62%、34.38%,均低于IMRT组的75.00%、67.86%(P<0.05);两组1年内复发及死亡率差异无统计学意义(P>0.05)。结论ff-IMRT与HT均对宫颈癌患者病情有较好的控制效果,整体疗效无较大差异,但相较于ff-IMRT,HT治疗过程中辐射范围更均匀,同时在保证疗效的前提下降低辐射最大剂量,尽可能减少对周围器官组织的辐射损伤,降低放疗所致的不良反应,安全性相对更高。 展开更多
关键词 固定野调强放射治疗 螺旋断层放射治疗 宫颈癌 近远期疗效 不良反应
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中医鼻病序贯疗法联合功能性内镜鼻窦手术治疗慢性鼻-鼻窦炎的临床研究 被引量:22
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作者 赵莹莹 孙书臣 +2 位作者 刘娇媚 汪玉娇 叶晓丽 《世界中西医结合杂志》 2020年第4期674-677,共4页
目的观察中医鼻病序贯疗法联合功能性内镜鼻窦手术治疗慢性鼻-鼻窦炎的临床疗效。方法选取2015年1月—2017年1月收治的140例慢性鼻-鼻窦炎患者,按照随机对照的原则,将其分为对照组和治疗组各70例,治疗过程中对照组脱落4例,剔除3例。治... 目的观察中医鼻病序贯疗法联合功能性内镜鼻窦手术治疗慢性鼻-鼻窦炎的临床疗效。方法选取2015年1月—2017年1月收治的140例慢性鼻-鼻窦炎患者,按照随机对照的原则,将其分为对照组和治疗组各70例,治疗过程中对照组脱落4例,剔除3例。治疗组脱落5例,剔除3例。最后共统计125例,对照组63例,治疗组62例。对照组采用功能性内镜鼻窦手术治疗和围术期综合药物治疗,治疗3个月。治疗组在对照组的基础上联合孙氏序贯疗法,连续3个月。对两组患者进行中医证候、SNOT-20评分量表评分,检测鼻黏膜纤毛传输速率(MTR),评价疗效。结果治疗后两组慢性鼻-鼻窦炎患者中医证候评分均低于治疗前,差异有统计学意义(P<0.05);且治疗组中医证候评分低于对照组,差异有统计学意义(P<0.05)。治疗后两组慢性鼻-鼻窦炎患者SNOT-20各项评分与治疗前比较均降低,差异有统计学意义(P<0.05);且治疗组SNOT-20各项评分均低于对照组,差异有统计学意义(P<0.05)。治疗后两组慢性鼻-鼻窦炎患者MTR与治疗前比较均升高,差异有统计学意义(P<0.05);且治疗组MTR高于对照组,差异有统计学意义(P<0.05)。治疗后治疗组有效率为95.16%高于对照组的79.37%,差异有统计学意义(χ2=6.986,P<0.05)。结论采用中医鼻病序贯疗法联合功能性内镜鼻窦手术治疗慢性鼻-鼻窦炎患者,能够明显改善症状及体征,促进鼻黏膜上皮化,远期效果好,无不良反应,值得临床推广。 展开更多
关键词 中医鼻病序贯疗法 功能性内镜鼻窦手术 慢性鼻-鼻窦炎 远期疗效
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双心房-右心室间隔上部三腔起搏对阵发性心房颤动伴心功能不全的长期治疗作用 被引量:3
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作者 李世强 傅向华 +4 位作者 吴伟力 马宁 刘君 赵映 苗青 《中国循环杂志》 CSCD 北大核心 2005年第2期109-113,共5页
目的:通过前瞻性对比研究,比较双心房-右心室间隔上部三腔起搏(BiA-RVUSP)与右心房-右心室间隔上部双腔起搏(RA-RVUSP)对药物难治性阵发性心房颤动(房颤)伴心功能不全患者的长期疗效。方法:将26例药物难治性阵发性房颤伴心功能不全患者... 目的:通过前瞻性对比研究,比较双心房-右心室间隔上部三腔起搏(BiA-RVUSP)与右心房-右心室间隔上部双腔起搏(RA-RVUSP)对药物难治性阵发性心房颤动(房颤)伴心功能不全患者的长期疗效。方法:将26例药物难治性阵发性房颤伴心功能不全患者,随机分为BiA-RVUSP组(A组)11例和RA-RVUSP组(B组)15例,另取同期基本情况相同的患者28例设常规药物治疗组(C组)。随访1年,全面比较起搏器A、B两组治疗前和治疗后,各起搏治疗组(A、B组)与药物治疗组间房颤事件的发生情况,心功能变化情况和评估患者的生活质量。结果:体表心电图P波时程A组治疗1年后较治疗前有显著缩短,而B组则有明显延长(P均<0.05)。超声心动图示A组起搏治疗1年后较治疗前左心房内径减少12.9%(P<0.05),舒张早期二尖瓣流速(E峰)和心房收缩期二尖瓣流速(A峰)均较治疗前有显著升高(P均<0.05);A组较B组治疗1年后左心房内径明显减小,A峰峰值明显升高(P均<0.05)。左心室射血分数A组和B组治疗1年后均较C组显著改善(P均<0.05)。A组治疗后的第1年内阵发性房颤发作频率较治疗前减少39.8%,较B组治疗前减少28.2%,有显著差异(P均<0.05);c组治疗后第1年房颤发作明显恶化,5/28例的患者转为永久性房颤。 展开更多
关键词 双心房-右心室间隔上部 阵发性心房颤动 心功能不全 三腔起搏 治疗作用 阵发性房颤 左心室射血分数 6分钟步行试验 左心房内径 生活质量 自评量表积分 治疗前 1年后 心电图P波 永久性房颤 难治性 治疗组 治疗后 对比研究
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钢-混凝土组合梁收缩和徐变的影响分析和计算 被引量:16
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作者 孙海林 叶列平 陆新征 《建筑结构》 CSCD 北大核心 2006年第S1期899-902,898,共5页
采用纤维模型编制了有限元程序,利用MC90收缩和徐变模型对简支钢-混凝土组合梁在长期荷载作用下的变形进行了分析,计算结果与试验结果相吻合。论文同时对现行规范方法和文献方法进行了分析,现行规范中考虑收缩和徐变的计算方法不全面,... 采用纤维模型编制了有限元程序,利用MC90收缩和徐变模型对简支钢-混凝土组合梁在长期荷载作用下的变形进行了分析,计算结果与试验结果相吻合。论文同时对现行规范方法和文献方法进行了分析,现行规范中考虑收缩和徐变的计算方法不全面,且偏于不安全,而文献的其它方法在收缩变形分析中也存在一些不足。为此,本文基于所建议的数值模型对影响组合梁长期变形的收缩和徐变参数进行了分析,并根据徐变和收缩引起的长期变形的机制,建议徐变变形计算采用"有效弹性模量"的换算截面法,收缩变形采用直接法计算,使得计算概念更为合理,且比现有方法与试验结果吻合更好。 展开更多
关键词 -混凝土组合梁 收缩 徐变 纤维模型 长期变形 有效模量
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碘-131治疗甲亢长期随访疗效分析 被引量:9
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作者 刘长江 李龙 +3 位作者 高健青 许苏眉 陈琳娜 周建明 《核技术》 EI CAS CSCD 北大核心 2006年第11期838-841,共4页
以长期随访方式观察碘-131治疗甲亢的疗效,并分析影响甲亢治愈和甲低发生的原因。对用碘-131治疗的甲亢患者进行随访的结果是:(1)碘-131治疗甲亢的总治愈率为74.4%,永久性甲低发生率7.5%。(2)男性与女性及初治与停用他巴唑>2周之间... 以长期随访方式观察碘-131治疗甲亢的疗效,并分析影响甲亢治愈和甲低发生的原因。对用碘-131治疗的甲亢患者进行随访的结果是:(1)碘-131治疗甲亢的总治愈率为74.4%,永久性甲低发生率7.5%。(2)男性与女性及初治与停用他巴唑>2周之间治愈率和甲低发生率差异无显著性(P>0.05)。(3)病程<1年、1―3年、>3年之间治愈率差异有显著意义(P<0.05),而甲低发生率无明显统计学差异(P>0.05)。(4)年龄<40岁与≥40岁及甲状腺大小<40g、40―55g、>55g之间治愈率和甲低发生率差异有显著意义(P<0.05)。(5)近期甲低和远期甲低的永久转化率分别为31.7%、76.9%;治疗时年龄较小的患者较易发生永久性甲低(P<0.05),而发生永久性甲低与不出现永久性甲低患者的甲状腺最高摄碘-131率之间差异无显著性(P>0.05)。由此得出以下结论:病程、年龄和甲状腺大小是影响甲亢治愈率的主要因素,而年龄和甲状腺大小是影响甲低发生率的主要因素。尽早碘-131治疗可提高疗效,同时应密切注意随访观察,警惕永久性甲低的发生。 展开更多
关键词 -131 甲亢 疗效 长期随访 抗甲状腺药物(ATD)
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