BACKGROUND The risks associated with negative doctor-patient relationships have seriously hindered the healthy development of medical and healthcare and aroused wide-spread concern in society.The number of public comm...BACKGROUND The risks associated with negative doctor-patient relationships have seriously hindered the healthy development of medical and healthcare and aroused wide-spread concern in society.The number of public comments on doctor-patient relationship risk events reflects the degree to which the public pays attention to such events.Thirty incidents of doctor-patient disputes were collected from Weibo and TikTok,and 3655 related comments were extracted.The number of comment sentiment words was extracted,and the comment sentiment value was calculated.The Kruskal-Wallis H test was used to compare differences between each variable group at different levels of incidence.Spearman’s correlation analysis was used to examine associations between variables.Regression analysis was used to explore factors influencing scores of comments on incidents.RESULTS The study results showed that public comments on media reports of doctor-patient disputes at all levels are mainly dominated by“good”and“disgust”emotional states.There was a significant difference in the comment scores and the number of partial emotion words between comments on varying levels of severity of doctor-patient disputes.The comment score was positively correlated with the number of emotion words related to positive,good,and happy)and negatively correlated with the number of emotion words related to negative,anger,disgust,fear,and sadness.CONCLUSION The number of emotion words related to negative,anger,disgust,fear,and sadness directly influences comment scores,and the severity of the incident level indirectly influences comment scores.展开更多
Background In China's Mainland,patients with neovascular age-related macular degeneration(nAMD)have approximately an 40%prevalence of polypoidal choroidal vasculopathy(PCV).This disease leads to recurrent retinal ...Background In China's Mainland,patients with neovascular age-related macular degeneration(nAMD)have approximately an 40%prevalence of polypoidal choroidal vasculopathy(PCV).This disease leads to recurrent retinal pigment epithelium detachment(PED),extensive subretinal or vitreous hemorrhages,and severe vision loss.China has introduced various treatment modalities in the past years and gained comprehensive experience in treating PCV.Methods A total of 14 retinal specialists nationwide with expertise in PCV were empaneled to prioritize six questions and address their corresponding outcomes,regarding opinions on inactive PCV,choices of anti-vascular endothelial growth factor(anti-VEGF)monotherapy,photodynamic therapy(PDT)monotherapy or combined therapy,patients with persistent subretinal fluid(SRF)or intraretinal fluid(IRF)after loading dose anti-VEGF,and patients with massive subretinal hemorrhage.An evidence synthesis team conducted systematic reviews,which informed the recommendations that address these questions.This guideline used the GRADE(Grading of Recommendations,Assessment,Development,and Evaluation)approach to assess the certainty of evidence and grade the strengths of recommendations.Results The panel proposed the following six conditional recommendations regarding treatment choices.(1)For patients with inactive PCV,we suggest observation over treatment.(2)For treatment-na?ve PCV patients,we suggest either anti-VEGF monotherapy or combined anti-VEGF and PDT rather than PDT monotherapy.(3)For patients with PCV who plan to initiate combined anti-VEGF and PDT treatment,we suggest later/rescue PDT over initiate PDT.(4)For PCV patients who plan to initiate anti-VEGF monotherapy,we suggest the treat and extend(TE)regimen rather than the pro re nata(PRN)regimen following three monthly loading doses.(5)For patients with persistent SRF or IRF on optical coherence tomography(OCT)after three monthly anti-VEGF treatments,we suggest proceeding with anti-VEGF treatment rather than observation.(6)For PCV patients with massive subretinal hemorrhage(equal to or more than four optic disc areas)involving the central macula,we suggest surgery(vitrectomy in combination with tissue-plasminogen activator(tPA)intraocular injection and gas tamponade)rather than anti-VEGF monotherapy.Conclusions Six evidence-based recommendations support optimal care for PCV patients'management.展开更多
目的:探究玻璃体腔注射康柏西普治疗弥漫性糖尿病性黄斑水肿(DDME)的眼表改变。方法:选取2019-01/06于我院眼科被诊断为DDME的患者20例,均为右眼发病,将右眼纳入试验组,左眼(未发生糖尿病性黄斑水肿)纳入对照组,试验组均行3次玻璃体腔...目的:探究玻璃体腔注射康柏西普治疗弥漫性糖尿病性黄斑水肿(DDME)的眼表改变。方法:选取2019-01/06于我院眼科被诊断为DDME的患者20例,均为右眼发病,将右眼纳入试验组,左眼(未发生糖尿病性黄斑水肿)纳入对照组,试验组均行3次玻璃体腔注射康柏西普,对照组不采取任何治疗操作。观察治疗前和3次治疗后第1d矫正视力、眼压、浅表点状上皮糜烂情况、泪河高度、眼表症状及体征(OSDI)评分、泪液分泌试验(SⅠt)及角膜荧光素染色(CSF)评分。结果:治疗前,两组眼压、泪河高度、OSDI评分、SⅠt、CSF评分均无差异(P>0.05),且两组均未出现浅表点状上皮糜烂情况,但对照组矫正视力显著优于试验组(0.50±0.20 vs 1.65±0.35,P<0.05)。治疗后,试验组矫正视力、泪河高度、SⅠt明显低于对照组,OSDI和CSF评分明显高于对照组(均P<0.05),眼压升高幅度较对照组更大,但两组无差异(P>0.05),而试验组19眼出现了浅表点状上皮糜烂情况。与治疗前比较,试验组治疗后矫正视力明显改善,泪河高度和SⅠt明显降低,OSDI和CSF评分明显升高(均P<0.05),但眼压无明显变化(P>0.05);对照组各观察指标均无明显变化(P>0.05)。结论:玻璃体腔注射康柏西普治疗弥漫性糖尿病性黄斑水肿会损伤眼表。展开更多
In order to deeply understand the grain growth behaviors of Ni80A superalloy,a series of grain growth experiments were conducted at holding temperatures ranging from 1223 to 1423 K and holding time ranging from 0 to 3...In order to deeply understand the grain growth behaviors of Ni80A superalloy,a series of grain growth experiments were conducted at holding temperatures ranging from 1223 to 1423 K and holding time ranging from 0 to 3600 s.A back-propagation artificial neural network(BP-ANN)model and a Sellars model were solved based on the experimental data.The prediction and generalization capabilities of these two models were evaluated and compared on the basis of four statistical indicators.The results show that the solved BP-ANN model has better performance as it has higher correlation coefficient(r),lower average absolute relative error(AARE),lower absolute values of mean value(μ)and standard deviation(ω).Eventually,a response surface of average grain size to holding temperature and holding time is constructed based on the data expanded by the solved BP-ANN model,and the grain growth behaviors are described.展开更多
To deeply understand and even describe the evolutions of the low-energy twin boundary density(BLDΣ3n)in a thermal-plastic deformation process,an improved twin density model as a function of average grain size and sto...To deeply understand and even describe the evolutions of the low-energy twin boundary density(BLDΣ3n)in a thermal-plastic deformation process,an improved twin density model as a function of average grain size and stored energy is developed.For Nimonic 80A superalloy,the model is solved based on the EBSD statistical results of grain size and BLDΣ3n in the specimens compressed at temperatures of 1273−1423 K and strain rates of 0.001−10 s−1.The corresponding relationships of BLDΣ3n with stored energy and grain size varying with temperature and strain rate are clarified by the superimposed contour plot maps.It is summarized that BLDΣ3n increases with increasing stored energy and decreasing grain size,and higher BLDΣ3n with finer grains corresponds with lower temperatures and higher strain rates.Such relationships are described by the improved twin density model,and the prediction tolerance of the solved model is limited in 2.8%.展开更多
BACKGROUND Diabetes mellitus is a metabolic disorder characterized by prolonged elevation of blood glucose due to various causes.Currently,the relationship between diabetic retinopathy(DR)and altered connectivity of b...BACKGROUND Diabetes mellitus is a metabolic disorder characterized by prolonged elevation of blood glucose due to various causes.Currently,the relationship between diabetic retinopathy(DR)and altered connectivity of brain function is unclear.AIM To investigate the relationship between this brain activity and clinical manifestations and behaviors of DR patients by using the amplitude of low-frequency fluctuation(ALFF)technique.METHODS Twenty-four DR patients and 24 healthy controls(HCs)matched for age and gender were enrolled.We measured and recorded average ALFF values of DR patients and HCs and then classified them using receiver operating characteristic(ROC)curves.RESULTS ALFF values of both left and right posterior cerebellar lobe and right anterior cingulate gyrus were remarkably higher in the DR patients than in the HCs;however,DR patients had lower values in the bilateral calcarine area.ROC curve analysis of different brain regions demonstrated high accuracy in the area under the curve analysis.There was no significant relationship between mean ALFF values for different regions and clinical presentations in DR patients.Neuronal synchronization abnormalities in some brain regions of DR patients were associated with cognitive and visual disorders.CONCLUSION Abnormal spontaneous brain activity was observed in many areas of DR patients’brains,which may suggest a possible link between clinical manifestations and behaviors in DR patients.展开更多
Quantum system is inevitably affected by the external environment in the real world.Two controlled quantum dialogue protocols are put forward based on logicalχ-type states under collective noise environment.One is ag...Quantum system is inevitably affected by the external environment in the real world.Two controlled quantum dialogue protocols are put forward based on logicalχ-type states under collective noise environment.One is against collectivedephasing noise,while the other is against collective-rotation noise.Compared with existing protocols,there exist several outstanding advantages in our proposed protocols:Firstly,theχ-type state is utilized as quantum channels,it possesses better entanglement properties than GHZ state,W state as well as cluster state,which make it difficult to be destroyed by local operations.Secondly,two kinds of logicalχ-type states are constructed by us in theory,which can be perfectly immune to the effects of collective noise.Thirdly,the controller can be offline after quantum distribution and permission announcement,without waiting for all the participants to complete the information coding.Fourthly,the security analysis illuminates that our protocols can not only be free from the information leakage,but also resist against the interceptand-resend attack,the entanglement-and-measure attack,the modification attack,the conspiring attack,and especially the dishonest controller’s attacks.展开更多
Objective To evaluate the differences in 24-hour ambulatory blood pressure (BP) in older patients with hypertension treated with the five major classes of antihypertensive drugs,as monotherapy or dual combination ther...Objective To evaluate the differences in 24-hour ambulatory blood pressure (BP) in older patients with hypertension treated with the five major classes of antihypertensive drugs,as monotherapy or dual combination therapy,to improve daytime and nighttime BP control. Methods We enrolled 1920 Chinese community-dwelling outpatients aged ≥ 60 years and compared ambulatory BP values and ambulatory BP control (24-hour BP < 130/80 mmHg;daytime mean BP < 135/85 mmHg;and nighttime mean BP < 120/70 mmHg),as well as nighttime BP dip patterns for monotherapy and dual combination therapy groups. Results Patients’ mean age was 71 years,and 59.5% of patients were women. Calcium channel blockers (CCBs) constituted the most common (60.3% of patients) monotherapy,and renin–angiotensin system (RAS) blockers combined with CCBs was the most common (56.5% of patients) dual combination therapy. Monotherapy with beta-blockers (BB) provided the best daytime BP control. The probabilities of having a nighttime dip pattern and nighttime BP control were higher in patients receiving diuretics compared with CCBs (OR = 0.52,P = 0.05 and OR = 0.41,P = 0.007,respectively). Patients receiving RAS/diuretic combination therapy had a higher probability of having controlled nighttime BP compared with those receiving RAS/CCB (OR = 0.45,P = 0.004). Compared with RAS/diuretic therapy,BB/CCB therapy had a higher probability of achieving daytime BP control (OR = 1.27,P = 0.45). Conclusions Antihypertensive monotherapy and dual combination drug therapy provided different ambulatory BP control and nighttime BP dip patterns. BB-based regimens provided lower daytime BP,whereas diuretic-based therapies provided lower nighttime BP,compared with other antihypertensive regimens.展开更多
BACKGROUND Diabetic vitreous hemorrhage(DVH)is a common complication of diabetes.While the diagnostic methods nowadays only concentrate on the eye injury in DVH patients,whether DVH leads to abnormalities of other vis...BACKGROUND Diabetic vitreous hemorrhage(DVH)is a common complication of diabetes.While the diagnostic methods nowadays only concentrate on the eye injury in DVH patients,whether DVH leads to abnormalities of other visual systems,including the eye,the visual cortex,and other brain regions,remains unknown.AIM To explore the potential changes of brain activity in DVH using regional homogeneity(ReHo)and their relationships with clinical features.METHODS Thirty-one DVH patients and 31 matched healthy controls(HCs)were recruited.All subjects were examined by resting-state functional magnetic resonance imaging.The neural homogeneity in the brain region was estimated by ReHo method.Pearson correlation analysis was used to evaluate the relationships between average ReHo values and clinical manifestations in DVH patients.RESULTS Compared with HCs,the ReHo values in the bilateral cerebellar posterior lobes,right superior(RS)/middle occipital gyrus(MOG),and bilateral superior frontal gyrus were significantly increased.In contrast,in the right insula,bilateral medial frontal gyri,and right middle frontal gyrus,the ReHo values were significantly decreased.Furthermore,we found that best-corrected visual acuity of the contralateral eye in patients with DVH presented a positive correlation with the mean ReHo value of the RS/MOG.We also found that depression score of the DVH group presented a negative correlation with the mean ReHo values of the right insula,bilateral medial frontal gyrus,and right middle frontal gyrus.CONCLUSION We found that DVH may cause dysfunction in multiple brain areas,which may benefit the exploration of pathologic mechanisms in DVH patients.展开更多
BACKGROUND The Rex shunt was widely used as the preferred surgical approach for cavernous transformation of the portal vein(CTPV)in children that creates a bypass between the superior mesenteric vein and the intrahepa...BACKGROUND The Rex shunt was widely used as the preferred surgical approach for cavernous transformation of the portal vein(CTPV)in children that creates a bypass between the superior mesenteric vein and the intrahepatic left portal vein(LPV).This procedure can relieve portal hypertension and restore physiological hepatopetal flow.However,the modified procedure is technically demanding because it is difficult to make an end-to-end anastomosis of a bypass to a hypoplastic LPV.Many studies reported using a recanalized umbilical vein as a conduit to resolve this problem.However,the feasibility of umbilical vein recanalization for a Rex shunt has not been fully investigated.AIM To investigate the efficacy of a recanalized umbilical vein as a conduit for a Rex shunt on CTPV in children by ultrasonography.METHODS A total of 47 children who were diagnosed with CTPV with prehepatic portal hypertension in the Second Hospital,Cheeloo College of Medicine,Shandong University,were enrolled in this study.Fifteen children received a recanalized umbilical vein as a conduit for a Rex shunt surgery and were enrolled in group I.Thirty-two children received the classic Rex shunt surgery and were enrolled in group II.The sonographic features of the two groups related to intraoperative and postoperative variation in terms of bypass vessel and the LPV were compared.RESULTS The patency rate of group I(60.0%,9/15)was significantly lower than that of group II(87.5%,28/32)7 d after(on the 8th d)operation(P<0.05).After clinical anticoagulation treatment for 3 mo,there was no significant difference in the patency rate between group I(86.7%,13/15)and group II(90.6%,29/32)(P>0.05).Moreover,3 mo after(at the beginning of the 4th mo)surgery,the inner diameter significantly widened and flow velocity notably increased for the bypass vessels and the sagittal part of the LPV compared to intraoperative values in both shunt groups(P<0.05).However,there was no significant difference between the two surgical groups 3 mo after surgery(P>0.05).CONCLUSION For children with hypoplastic LPV in the Rex recessus,using a recanalized umbilical vein as a conduit for a Rex shunt may be an effective procedure for CTPV treatment.展开更多
AIM: To identify the novel mutation alleles in the CYP1B1 gene of primary congenital glaucoma(PCG) patients at Shandong Province of China, and investigate their correlation with glaucomatous features.METHODS: The DNA ...AIM: To identify the novel mutation alleles in the CYP1B1 gene of primary congenital glaucoma(PCG) patients at Shandong Province of China, and investigate their correlation with glaucomatous features.METHODS: The DNA from the peripheral blood of 13 congenital glaucoma patients and 50 ethnically matched healthy controls from the affiliated hospital of Qingdao University were extracted. The coding region of the CYP1B1 gene was amplified by PCR and direct DNA sequencing was performed. Disease causing-variants were analyzed by comparing the sequences and the structures of wild type and mutant CYP1B1 proteins by PyMOL software.RESULTS: Two missense mutations, including A330 F caused by c.988 G>T&c.989 C>T, and R390H caused by c.1169 G>A, were identified in one of the 13 PCG patients analyzed in our study. A330F mutation was observed to be novel in the Chinese Han population, which dramatically altered the protein structure of CYP1B1 gene, including the changes in the ligand-binding pocket. Furthermore, R390H mutation caused the changes in heme-protein binding site of this gene. In addition, the clinical phenotype displayed by PCG patient with these mutations was more pronounced than other PCG patients without these mutations. Multiple surgeries and combined drug treatment were not effective in reducing the elevated intraocular pressure in this patient.CONCLUSION: A novel A330F mutation is identified in the CYP1B1 gene of Chinese PCG patient. Moreover, in combination with other mutation R390H, this PCG patient shows significant difference in the CYP1B1 protein structure, which may specifically contribute to severe glaucomatous phenotype.展开更多
We theoretically investigated a second-order optomechanical-induced transparency(OMIT) process of a hybrid optomechanical system(COMS), which a Bose-Einstein condensate(BEC) in the presence of atom-atom interaction tr...We theoretically investigated a second-order optomechanical-induced transparency(OMIT) process of a hybrid optomechanical system(COMS), which a Bose-Einstein condensate(BEC) in the presence of atom-atom interaction trapped inside a cavity with a moving end mirror. The advantage of this hybrid COMS over a bare COMS is that the frequency of the second mode is controlled by the s-wave scattering interaction. Based on the traditional linearization approximation, we derive analytical solutions for the output transmission intensity of the probe field and the dimensionless amplitude of the second-order sideband(SS). The numerical results show that the transmission intensity of the probe field and the dimensionless amplitude of the SS can be controlled by the s-wave scattering frequency. Furthermore, the control field intensities,the effective detuning, the effective coupling strength of the cavity field with the Bogoliubov mode are used to control the transmission intensity of the probe field and the dimensionless amplitude of the SS.展开更多
The high energy density and stability of solid-state lithium metal batteries(SSLMBs)have garnered great attention.Garnet-type oxides,especially Li_(6.4)La_(3)Zr_(1.4)Ta_(0.6)O_(12)(LLZTO),with high ionic conductivity,...The high energy density and stability of solid-state lithium metal batteries(SSLMBs)have garnered great attention.Garnet-type oxides,especially Li_(6.4)La_(3)Zr_(1.4)Ta_(0.6)O_(12)(LLZTO),with high ionic conductivity,wide electrochemical window,and stability to Li metal anode,are promising solid-state electrolyte(SSEs)materials for SSLMBs.However,Li/LLZTO interface issues including high interface resistance,inhomogeneous Li deposition,and Li dendrite growth have hindered the practical application of SSLMBs.Herein,a multi-functional Li–SnF_(2) composite anode with Li,LiF,and Li-Sn alloy was specifically designed and prepared.The composite anode improves the wettability to LLZTO,constructing an intimate contact interface between it and LLZTO.Meanwhile,ionic/electronic conductive paths in situ formed at the interface can effectively uniform Li deposition and suppress Li dendrite.The solid-state symmetric cell exhibits low interface resistance(11Ω·cm^(2)) and high critical current density(1.3 mA·cm^(−2))at 25℃.The full SSLMB based on LiFePO_(4) or LiNi_(0.5)Co_(0.2)Mn_(0.3)O_(2) cathode also shows stable cycling performance and high rate capability.This work provides a new composite anode strategy for achieving high-energy density and high-safety SSLMBs.展开更多
Determining clinical questions is fundamental to the development of clinical practice guidelines(CPGs),which bridges the initial phases and the final recommendations.It is essential for evidence retrieval and the form...Determining clinical questions is fundamental to the development of clinical practice guidelines(CPGs),which bridges the initial phases and the final recommendations.It is essential for evidence retrieval and the formulation of recommendations.The scientific rigor and precision in determination of clinical questions directly influence the future implementation and applicability of guidelines.In 2020,the World Federation of Acupuncture-Moxibustion Societies initiated the project of clinical practice guideline on acupuncture and moxibustion for adult major depressive disorder(mild-moderate degree)to address clinical and medical decision-making issues in acupuncture treatment for adult mild to moderate major depressive disorder.This CPG provides systematic recommendations based on clinical evidence,patient values,and other factors,aiding decision-makers,clinicians,and patients in selecting appropriate interventions.This paper discusses and analyzes the determination process of clinical questions,and the related issues during the development of this guideline,aiming to provide a reference for determining clinical questions and developing CPGs in the field of acupuncture and exploring more scientific tools and methods for determining clinical questions in future CPGs.展开更多
The Omicron variant of the severe acute respiratory syndrome coronavirus 2(SARS‑CoV‑2)infected a substantial proportion of Chinese population,and understanding the factors underlying the severity of the disease and fa...The Omicron variant of the severe acute respiratory syndrome coronavirus 2(SARS‑CoV‑2)infected a substantial proportion of Chinese population,and understanding the factors underlying the severity of the disease and fatality is valuable for future prevention and clinical treatment.We recruited 64 patients with invasive ventilation for COVID-19 and performed metatranscriptomic sequencing to profile host transcriptomic profiles,plus viral,bacterial,and fungal content,as well as virulence factors and examined their relationships to 28-day mortality were examined.In addition,the bronchoalveolar lavage fluid(BALF)samples from invasive ventilated hospital/community-acquired pneumonia patients(HAP/CAP)sampled in 2019 were included for comparison.Genomic analysis revealed that all Omicron strains belong to BA.5 and BF.7 sub-lineages,with no difference in 28-day mortality between them.Compared to HAP/CAP cohort,invasive ventilated COVID-19 patients have distinct host transcriptomic and microbial signatures in the lower respiratory tract;and in the COVID-19 non-survivors,we found significantly lower gene expressions in pathways related viral processes and positive regulation of protein localization to plasma membrane,higher abundance of opportunistic pathogens including bacterial Alloprevotella,Caulobacter,Escherichia-Shigella,Ralstonia and fungal Aspergillus sydowii and Penicillium rubens.Correlational analysis further revealed significant associations between host immune responses and microbial compositions,besides synergy within viral,bacterial,and fungal pathogens.Our study presents the relationships of lower respiratory tract microbiome and transcriptome in invasive ventilated COVID-19 patients,providing the basis for future clinical treatment and reduction of fatality.展开更多
基金Supported by the National Natural Science Foundation of China,No.72374005Natural Science Foundation for the Higher Education Institutions of Anhui Province of China,No.2023AH050561Cultivation Programme for Young and Middle-aged Excellent Teachers in Anhui Province,No.YQZD2023021.
文摘BACKGROUND The risks associated with negative doctor-patient relationships have seriously hindered the healthy development of medical and healthcare and aroused wide-spread concern in society.The number of public comments on doctor-patient relationship risk events reflects the degree to which the public pays attention to such events.Thirty incidents of doctor-patient disputes were collected from Weibo and TikTok,and 3655 related comments were extracted.The number of comment sentiment words was extracted,and the comment sentiment value was calculated.The Kruskal-Wallis H test was used to compare differences between each variable group at different levels of incidence.Spearman’s correlation analysis was used to examine associations between variables.Regression analysis was used to explore factors influencing scores of comments on incidents.RESULTS The study results showed that public comments on media reports of doctor-patient disputes at all levels are mainly dominated by“good”and“disgust”emotional states.There was a significant difference in the comment scores and the number of partial emotion words between comments on varying levels of severity of doctor-patient disputes.The comment score was positively correlated with the number of emotion words related to positive,good,and happy)and negatively correlated with the number of emotion words related to negative,anger,disgust,fear,and sadness.CONCLUSION The number of emotion words related to negative,anger,disgust,fear,and sadness directly influences comment scores,and the severity of the incident level indirectly influences comment scores.
基金supports from the National Natural Science Foundation of China(No.52175287)the Open Fund of State Key Laboratory of Materials Processing and Die&Mould Technology,China(No.P2021-001).
文摘Background In China's Mainland,patients with neovascular age-related macular degeneration(nAMD)have approximately an 40%prevalence of polypoidal choroidal vasculopathy(PCV).This disease leads to recurrent retinal pigment epithelium detachment(PED),extensive subretinal or vitreous hemorrhages,and severe vision loss.China has introduced various treatment modalities in the past years and gained comprehensive experience in treating PCV.Methods A total of 14 retinal specialists nationwide with expertise in PCV were empaneled to prioritize six questions and address their corresponding outcomes,regarding opinions on inactive PCV,choices of anti-vascular endothelial growth factor(anti-VEGF)monotherapy,photodynamic therapy(PDT)monotherapy or combined therapy,patients with persistent subretinal fluid(SRF)or intraretinal fluid(IRF)after loading dose anti-VEGF,and patients with massive subretinal hemorrhage.An evidence synthesis team conducted systematic reviews,which informed the recommendations that address these questions.This guideline used the GRADE(Grading of Recommendations,Assessment,Development,and Evaluation)approach to assess the certainty of evidence and grade the strengths of recommendations.Results The panel proposed the following six conditional recommendations regarding treatment choices.(1)For patients with inactive PCV,we suggest observation over treatment.(2)For treatment-na?ve PCV patients,we suggest either anti-VEGF monotherapy or combined anti-VEGF and PDT rather than PDT monotherapy.(3)For patients with PCV who plan to initiate combined anti-VEGF and PDT treatment,we suggest later/rescue PDT over initiate PDT.(4)For PCV patients who plan to initiate anti-VEGF monotherapy,we suggest the treat and extend(TE)regimen rather than the pro re nata(PRN)regimen following three monthly loading doses.(5)For patients with persistent SRF or IRF on optical coherence tomography(OCT)after three monthly anti-VEGF treatments,we suggest proceeding with anti-VEGF treatment rather than observation.(6)For PCV patients with massive subretinal hemorrhage(equal to or more than four optic disc areas)involving the central macula,we suggest surgery(vitrectomy in combination with tissue-plasminogen activator(tPA)intraocular injection and gas tamponade)rather than anti-VEGF monotherapy.Conclusions Six evidence-based recommendations support optimal care for PCV patients'management.
文摘目的:探究玻璃体腔注射康柏西普治疗弥漫性糖尿病性黄斑水肿(DDME)的眼表改变。方法:选取2019-01/06于我院眼科被诊断为DDME的患者20例,均为右眼发病,将右眼纳入试验组,左眼(未发生糖尿病性黄斑水肿)纳入对照组,试验组均行3次玻璃体腔注射康柏西普,对照组不采取任何治疗操作。观察治疗前和3次治疗后第1d矫正视力、眼压、浅表点状上皮糜烂情况、泪河高度、眼表症状及体征(OSDI)评分、泪液分泌试验(SⅠt)及角膜荧光素染色(CSF)评分。结果:治疗前,两组眼压、泪河高度、OSDI评分、SⅠt、CSF评分均无差异(P>0.05),且两组均未出现浅表点状上皮糜烂情况,但对照组矫正视力显著优于试验组(0.50±0.20 vs 1.65±0.35,P<0.05)。治疗后,试验组矫正视力、泪河高度、SⅠt明显低于对照组,OSDI和CSF评分明显高于对照组(均P<0.05),眼压升高幅度较对照组更大,但两组无差异(P>0.05),而试验组19眼出现了浅表点状上皮糜烂情况。与治疗前比较,试验组治疗后矫正视力明显改善,泪河高度和SⅠt明显降低,OSDI和CSF评分明显升高(均P<0.05),但眼压无明显变化(P>0.05);对照组各观察指标均无明显变化(P>0.05)。结论:玻璃体腔注射康柏西普治疗弥漫性糖尿病性黄斑水肿会损伤眼表。
基金Project(cstc2018jcyjAX0459)supported by Chongqing Basic Research and Frontier Exploration Program,ChinaProjects(2019CDQYTM027,2019CDJGFCL003)supported by the Fundamental Research Funds for the Central Universities,China。
文摘In order to deeply understand the grain growth behaviors of Ni80A superalloy,a series of grain growth experiments were conducted at holding temperatures ranging from 1223 to 1423 K and holding time ranging from 0 to 3600 s.A back-propagation artificial neural network(BP-ANN)model and a Sellars model were solved based on the experimental data.The prediction and generalization capabilities of these two models were evaluated and compared on the basis of four statistical indicators.The results show that the solved BP-ANN model has better performance as it has higher correlation coefficient(r),lower average absolute relative error(AARE),lower absolute values of mean value(μ)and standard deviation(ω).Eventually,a response surface of average grain size to holding temperature and holding time is constructed based on the data expanded by the solved BP-ANN model,and the grain growth behaviors are described.
基金the financial supports from Chongqing Basic Research and Frontier Exploration Program, China (cstc2018jcyj AX0459)the Fundamental Research Funds for the Central Universities, China (2019CDQYTM027, 2019CDJGFCL003, 2018CDPTCG0001-6)Open Fund of State Key Laboratory of Materials Processing and Die & Mould Technology, China (P2020-001)
文摘To deeply understand and even describe the evolutions of the low-energy twin boundary density(BLDΣ3n)in a thermal-plastic deformation process,an improved twin density model as a function of average grain size and stored energy is developed.For Nimonic 80A superalloy,the model is solved based on the EBSD statistical results of grain size and BLDΣ3n in the specimens compressed at temperatures of 1273−1423 K and strain rates of 0.001−10 s−1.The corresponding relationships of BLDΣ3n with stored energy and grain size varying with temperature and strain rate are clarified by the superimposed contour plot maps.It is summarized that BLDΣ3n increases with increasing stored energy and decreasing grain size,and higher BLDΣ3n with finer grains corresponds with lower temperatures and higher strain rates.Such relationships are described by the improved twin density model,and the prediction tolerance of the solved model is limited in 2.8%.
文摘BACKGROUND Diabetes mellitus is a metabolic disorder characterized by prolonged elevation of blood glucose due to various causes.Currently,the relationship between diabetic retinopathy(DR)and altered connectivity of brain function is unclear.AIM To investigate the relationship between this brain activity and clinical manifestations and behaviors of DR patients by using the amplitude of low-frequency fluctuation(ALFF)technique.METHODS Twenty-four DR patients and 24 healthy controls(HCs)matched for age and gender were enrolled.We measured and recorded average ALFF values of DR patients and HCs and then classified them using receiver operating characteristic(ROC)curves.RESULTS ALFF values of both left and right posterior cerebellar lobe and right anterior cingulate gyrus were remarkably higher in the DR patients than in the HCs;however,DR patients had lower values in the bilateral calcarine area.ROC curve analysis of different brain regions demonstrated high accuracy in the area under the curve analysis.There was no significant relationship between mean ALFF values for different regions and clinical presentations in DR patients.Neuronal synchronization abnormalities in some brain regions of DR patients were associated with cognitive and visual disorders.CONCLUSION Abnormal spontaneous brain activity was observed in many areas of DR patients’brains,which may suggest a possible link between clinical manifestations and behaviors in DR patients.
基金Project supported by the National Natural Science Foundation of China(Grant No.61502048)the Natural Science Foundation of Shanxi Province of China(Grant No.201801D221159)+1 种基金the Scientific and Technological Innovation Programs of Higher Education Institutions in Shanxi Province of China(Grant No.2019L0470)Youth Research Foundation of Shanxi University of Finance and Economics in Shanxi Province of China(Grant No.QN-2016009)
文摘Quantum system is inevitably affected by the external environment in the real world.Two controlled quantum dialogue protocols are put forward based on logicalχ-type states under collective noise environment.One is against collectivedephasing noise,while the other is against collective-rotation noise.Compared with existing protocols,there exist several outstanding advantages in our proposed protocols:Firstly,theχ-type state is utilized as quantum channels,it possesses better entanglement properties than GHZ state,W state as well as cluster state,which make it difficult to be destroyed by local operations.Secondly,two kinds of logicalχ-type states are constructed by us in theory,which can be perfectly immune to the effects of collective noise.Thirdly,the controller can be offline after quantum distribution and permission announcement,without waiting for all the participants to complete the information coding.Fourthly,the security analysis illuminates that our protocols can not only be free from the information leakage,but also resist against the interceptand-resend attack,the entanglement-and-measure attack,the modification attack,the conspiring attack,and especially the dishonest controller’s attacks.
基金supported by a grant from the Chinese Ministry of Sciences and Technology (2016YFC1300100)
文摘Objective To evaluate the differences in 24-hour ambulatory blood pressure (BP) in older patients with hypertension treated with the five major classes of antihypertensive drugs,as monotherapy or dual combination therapy,to improve daytime and nighttime BP control. Methods We enrolled 1920 Chinese community-dwelling outpatients aged ≥ 60 years and compared ambulatory BP values and ambulatory BP control (24-hour BP < 130/80 mmHg;daytime mean BP < 135/85 mmHg;and nighttime mean BP < 120/70 mmHg),as well as nighttime BP dip patterns for monotherapy and dual combination therapy groups. Results Patients’ mean age was 71 years,and 59.5% of patients were women. Calcium channel blockers (CCBs) constituted the most common (60.3% of patients) monotherapy,and renin–angiotensin system (RAS) blockers combined with CCBs was the most common (56.5% of patients) dual combination therapy. Monotherapy with beta-blockers (BB) provided the best daytime BP control. The probabilities of having a nighttime dip pattern and nighttime BP control were higher in patients receiving diuretics compared with CCBs (OR = 0.52,P = 0.05 and OR = 0.41,P = 0.007,respectively). Patients receiving RAS/diuretic combination therapy had a higher probability of having controlled nighttime BP compared with those receiving RAS/CCB (OR = 0.45,P = 0.004). Compared with RAS/diuretic therapy,BB/CCB therapy had a higher probability of achieving daytime BP control (OR = 1.27,P = 0.45). Conclusions Antihypertensive monotherapy and dual combination drug therapy provided different ambulatory BP control and nighttime BP dip patterns. BB-based regimens provided lower daytime BP,whereas diuretic-based therapies provided lower nighttime BP,compared with other antihypertensive regimens.
文摘BACKGROUND Diabetic vitreous hemorrhage(DVH)is a common complication of diabetes.While the diagnostic methods nowadays only concentrate on the eye injury in DVH patients,whether DVH leads to abnormalities of other visual systems,including the eye,the visual cortex,and other brain regions,remains unknown.AIM To explore the potential changes of brain activity in DVH using regional homogeneity(ReHo)and their relationships with clinical features.METHODS Thirty-one DVH patients and 31 matched healthy controls(HCs)were recruited.All subjects were examined by resting-state functional magnetic resonance imaging.The neural homogeneity in the brain region was estimated by ReHo method.Pearson correlation analysis was used to evaluate the relationships between average ReHo values and clinical manifestations in DVH patients.RESULTS Compared with HCs,the ReHo values in the bilateral cerebellar posterior lobes,right superior(RS)/middle occipital gyrus(MOG),and bilateral superior frontal gyrus were significantly increased.In contrast,in the right insula,bilateral medial frontal gyri,and right middle frontal gyrus,the ReHo values were significantly decreased.Furthermore,we found that best-corrected visual acuity of the contralateral eye in patients with DVH presented a positive correlation with the mean ReHo value of the RS/MOG.We also found that depression score of the DVH group presented a negative correlation with the mean ReHo values of the right insula,bilateral medial frontal gyrus,and right middle frontal gyrus.CONCLUSION We found that DVH may cause dysfunction in multiple brain areas,which may benefit the exploration of pathologic mechanisms in DVH patients.
文摘BACKGROUND The Rex shunt was widely used as the preferred surgical approach for cavernous transformation of the portal vein(CTPV)in children that creates a bypass between the superior mesenteric vein and the intrahepatic left portal vein(LPV).This procedure can relieve portal hypertension and restore physiological hepatopetal flow.However,the modified procedure is technically demanding because it is difficult to make an end-to-end anastomosis of a bypass to a hypoplastic LPV.Many studies reported using a recanalized umbilical vein as a conduit to resolve this problem.However,the feasibility of umbilical vein recanalization for a Rex shunt has not been fully investigated.AIM To investigate the efficacy of a recanalized umbilical vein as a conduit for a Rex shunt on CTPV in children by ultrasonography.METHODS A total of 47 children who were diagnosed with CTPV with prehepatic portal hypertension in the Second Hospital,Cheeloo College of Medicine,Shandong University,were enrolled in this study.Fifteen children received a recanalized umbilical vein as a conduit for a Rex shunt surgery and were enrolled in group I.Thirty-two children received the classic Rex shunt surgery and were enrolled in group II.The sonographic features of the two groups related to intraoperative and postoperative variation in terms of bypass vessel and the LPV were compared.RESULTS The patency rate of group I(60.0%,9/15)was significantly lower than that of group II(87.5%,28/32)7 d after(on the 8th d)operation(P<0.05).After clinical anticoagulation treatment for 3 mo,there was no significant difference in the patency rate between group I(86.7%,13/15)and group II(90.6%,29/32)(P>0.05).Moreover,3 mo after(at the beginning of the 4th mo)surgery,the inner diameter significantly widened and flow velocity notably increased for the bypass vessels and the sagittal part of the LPV compared to intraoperative values in both shunt groups(P<0.05).However,there was no significant difference between the two surgical groups 3 mo after surgery(P>0.05).CONCLUSION For children with hypoplastic LPV in the Rex recessus,using a recanalized umbilical vein as a conduit for a Rex shunt may be an effective procedure for CTPV treatment.
基金Supported by “Clinical medical+X” Project from Department of Medicine of Qingdao University
文摘AIM: To identify the novel mutation alleles in the CYP1B1 gene of primary congenital glaucoma(PCG) patients at Shandong Province of China, and investigate their correlation with glaucomatous features.METHODS: The DNA from the peripheral blood of 13 congenital glaucoma patients and 50 ethnically matched healthy controls from the affiliated hospital of Qingdao University were extracted. The coding region of the CYP1B1 gene was amplified by PCR and direct DNA sequencing was performed. Disease causing-variants were analyzed by comparing the sequences and the structures of wild type and mutant CYP1B1 proteins by PyMOL software.RESULTS: Two missense mutations, including A330 F caused by c.988 G>T&c.989 C>T, and R390H caused by c.1169 G>A, were identified in one of the 13 PCG patients analyzed in our study. A330F mutation was observed to be novel in the Chinese Han population, which dramatically altered the protein structure of CYP1B1 gene, including the changes in the ligand-binding pocket. Furthermore, R390H mutation caused the changes in heme-protein binding site of this gene. In addition, the clinical phenotype displayed by PCG patient with these mutations was more pronounced than other PCG patients without these mutations. Multiple surgeries and combined drug treatment were not effective in reducing the elevated intraocular pressure in this patient.CONCLUSION: A novel A330F mutation is identified in the CYP1B1 gene of Chinese PCG patient. Moreover, in combination with other mutation R390H, this PCG patient shows significant difference in the CYP1B1 protein structure, which may specifically contribute to severe glaucomatous phenotype.
基金Project supported by the National Natural Science Foundation of China (Grant Nos. 11564034 and 21663026)the Natural Science Foundation of Gansu Province, China (Grant No. 20JR5RA509)+1 种基金the Fundamental Research Funds for the Central Universities of College of Electrical Engineering, Northwest Minzu University (Grant Nos. 31920210016, 31920190006, and 31920200006)the Scientific Research Project of Hunan Educational Department, China (Grant No. 19B206)。
文摘We theoretically investigated a second-order optomechanical-induced transparency(OMIT) process of a hybrid optomechanical system(COMS), which a Bose-Einstein condensate(BEC) in the presence of atom-atom interaction trapped inside a cavity with a moving end mirror. The advantage of this hybrid COMS over a bare COMS is that the frequency of the second mode is controlled by the s-wave scattering interaction. Based on the traditional linearization approximation, we derive analytical solutions for the output transmission intensity of the probe field and the dimensionless amplitude of the second-order sideband(SS). The numerical results show that the transmission intensity of the probe field and the dimensionless amplitude of the SS can be controlled by the s-wave scattering frequency. Furthermore, the control field intensities,the effective detuning, the effective coupling strength of the cavity field with the Bogoliubov mode are used to control the transmission intensity of the probe field and the dimensionless amplitude of the SS.
基金This study was financially supported by the National Natural Science Foundation of China(Nos.52177208,52171202,51971055 and 51871046)the National Safety Academic Fund(Nos.U1930208,U2030206 and U1730136).
文摘The high energy density and stability of solid-state lithium metal batteries(SSLMBs)have garnered great attention.Garnet-type oxides,especially Li_(6.4)La_(3)Zr_(1.4)Ta_(0.6)O_(12)(LLZTO),with high ionic conductivity,wide electrochemical window,and stability to Li metal anode,are promising solid-state electrolyte(SSEs)materials for SSLMBs.However,Li/LLZTO interface issues including high interface resistance,inhomogeneous Li deposition,and Li dendrite growth have hindered the practical application of SSLMBs.Herein,a multi-functional Li–SnF_(2) composite anode with Li,LiF,and Li-Sn alloy was specifically designed and prepared.The composite anode improves the wettability to LLZTO,constructing an intimate contact interface between it and LLZTO.Meanwhile,ionic/electronic conductive paths in situ formed at the interface can effectively uniform Li deposition and suppress Li dendrite.The solid-state symmetric cell exhibits low interface resistance(11Ω·cm^(2)) and high critical current density(1.3 mA·cm^(−2))at 25℃.The full SSLMB based on LiFePO_(4) or LiNi_(0.5)Co_(0.2)Mn_(0.3)O_(2) cathode also shows stable cycling performance and high rate capability.This work provides a new composite anode strategy for achieving high-energy density and high-safety SSLMBs.
基金Supported by National Key Research and Development Program:2017YFC1703606Shenzhen Science and Technology Program:JCYJ20210324120804012+1 种基金2021 Luohu Soft Science Research Program Project:LX202101022022 Luohu Soft Science Research Program Project:LX202202128。
文摘Determining clinical questions is fundamental to the development of clinical practice guidelines(CPGs),which bridges the initial phases and the final recommendations.It is essential for evidence retrieval and the formulation of recommendations.The scientific rigor and precision in determination of clinical questions directly influence the future implementation and applicability of guidelines.In 2020,the World Federation of Acupuncture-Moxibustion Societies initiated the project of clinical practice guideline on acupuncture and moxibustion for adult major depressive disorder(mild-moderate degree)to address clinical and medical decision-making issues in acupuncture treatment for adult mild to moderate major depressive disorder.This CPG provides systematic recommendations based on clinical evidence,patient values,and other factors,aiding decision-makers,clinicians,and patients in selecting appropriate interventions.This paper discusses and analyzes the determination process of clinical questions,and the related issues during the development of this guideline,aiming to provide a reference for determining clinical questions and developing CPGs in the field of acupuncture and exploring more scientific tools and methods for determining clinical questions in future CPGs.
基金funded by the National Key Research and Development Program of China(2022YFC2303200)Capital Development Key Grant of China(2022-1-5091).
文摘The Omicron variant of the severe acute respiratory syndrome coronavirus 2(SARS‑CoV‑2)infected a substantial proportion of Chinese population,and understanding the factors underlying the severity of the disease and fatality is valuable for future prevention and clinical treatment.We recruited 64 patients with invasive ventilation for COVID-19 and performed metatranscriptomic sequencing to profile host transcriptomic profiles,plus viral,bacterial,and fungal content,as well as virulence factors and examined their relationships to 28-day mortality were examined.In addition,the bronchoalveolar lavage fluid(BALF)samples from invasive ventilated hospital/community-acquired pneumonia patients(HAP/CAP)sampled in 2019 were included for comparison.Genomic analysis revealed that all Omicron strains belong to BA.5 and BF.7 sub-lineages,with no difference in 28-day mortality between them.Compared to HAP/CAP cohort,invasive ventilated COVID-19 patients have distinct host transcriptomic and microbial signatures in the lower respiratory tract;and in the COVID-19 non-survivors,we found significantly lower gene expressions in pathways related viral processes and positive regulation of protein localization to plasma membrane,higher abundance of opportunistic pathogens including bacterial Alloprevotella,Caulobacter,Escherichia-Shigella,Ralstonia and fungal Aspergillus sydowii and Penicillium rubens.Correlational analysis further revealed significant associations between host immune responses and microbial compositions,besides synergy within viral,bacterial,and fungal pathogens.Our study presents the relationships of lower respiratory tract microbiome and transcriptome in invasive ventilated COVID-19 patients,providing the basis for future clinical treatment and reduction of fatality.