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Development of a Multiplex Real-Time Quantitative PCR Assay for Detecting Vaginal Microbiota in Chinese Women-China,2021-2022

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China CDC weekly 2024年第31期6卷 793-798,I0001,I0002页

作者： Xiaolei Wang Yuanyuan Zhang Tingting Liu Chuan Song Xiaoyu Xue Jun Liu Hongxin Zhao Clinical Center for HIV/AIDS Beijing Ditan HospitalCapital Medical UniversityBeijingChina Beijing Institute of infectious diseases BeijingChina Beijing Key laboratory of Emerging infectious diseases Institute of Infectious DiseasesBeijing Ditan HospitalCapital Medical UniversityBeijingChina National Center for infectious diseases Beijing Ditan HospitalCapital Medical UniversityBeijingChina Beijing Ditan Hospital Peking UniversityBeijingChina Department of Gynecology Beijing Ditan HospitalCapital Medical UniversityBeijingChina

Introduction:The Nugent score,limited by subjectivity and personnel requirements,lacks *** a precise and simple molecular test is therefore essential for detecting vaginal microbiota compositions and evaluating vaginal ***:We evaluated the vaginal health of Chinese women using quantitative polymerase chain reaction(qPCR)to target Lactobacillus crispatus(***),***,Gardnerella vaginalis(***),Atopobium vaginae(***),and Megasphaera *** vaginosis(BV)-related bacteria shared a fluorescent *** 16S rDNA sequencing as a reference standard,we evaluated and validated the diagnostic accuracy of the qPCR ***:Both qPCR and 16S rDNA sequencing demonstrated 90.5%concordance in segregating vaginal community state type(CST),as visualized through heatmaps and ***’s correlation analysis revealed strong correlations between the two methods in calculating the RA of ***(CST I),***(CST III),and BV-related bacteria(CST IV),with coefficients of 0.865,0.837,and 0.827,*** operating characteristic analysis showed that qPCR had significant diagnostic accuracy for CST I,CST III,and CST IV(molecular BV),with area under the curve values of 0.967,0.815,and 0.950,respectively,indicating strong predictive ***:Vaginal health can be evaluated using a single qPCR amplification experiment,making the multiplex qPCR assay a highly accurate tool for this purpose.

关键词： Vaginal Assay precise

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Tuberculosis Prevalence Trends from a Predictive Modelling Study-10 High-Burden Countries,1980-2035

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China CDC weekly 2024年第12期6卷 225-229,I0001,I0002页

作者： Qiuping Chen Qiao Liu Kangguo Li Laurent Gavotte Roger Frutos Tianmu Chen CIRAD IntertrypMontpellierFrance Universitéde Montpellier MontpellierFrance State Key laboratory of Molecular Vaccinology and Molecular Diagnostics National Innovation Platform for Industry-Education Integration in Vaccine ResearchXiamen UniversityXiamen CityFujian ProvinceChina State Key laboratory of Vaccines for infectious diseases Xiang An Biomedicine LaboratorySchool of Public HealthXiamen UniversityXiamen CityFujian ProvinceChina Espace-Dev Universitéde MontpellierMontpellierFrance

What is already known about this topic?Given the challenges presented by drug-resistant strains of tuberculosis(TB)and the rising mobility of the population,achieving the objective of eradicating TB appears *** is added by this report?The examination of TB incidence trends in 10 highburden countries(HBCs)indicated a steady rise in cases,with India and China jointly accounting for nearly 70%of the *** for the future show diverse trajectories in these countries,with potential difficulties in reaching the TB elimination target,especially in Nigeria,Congo,and South *** are the implications for public health practice?The number of TB cases is on the *** is crucial to learn from successful strategies to improve TB prevention and control worldwide through collaborative efforts.

关键词： tuberculosis uncertain Tuberculosis

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Analysis of the influencing factors and clinical related characteristics of pulmonary tuberculosis in patients with type 2 diabetes mellitus

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World Journal of Diabetes 2024年第2期15卷 196-208页

作者： Han Shi Yuan Yuan Xue Li Yan-Fang Li Ling Fan Xue-Mei Yang Department of infectious diseases The First Affiliated Hospital of Chengdu Medical CollegeChengdu 610500Sichuan ProvinceChina

BACKGROUND In China,the prevalence of type 2 diabetes mellitus(T2DM)among diabetic patients is estimated to be between 90%-95%.Additionally,China is among the 22 countries burdened by a high number of tuberculosis cases,with approximately 4.5 million individuals affected by active ***,T2DM poses a significant risk factor for the development of tuberculosis,as evidenced by the increased incidence of T2DM coexisting with pulmonary tuberculosis(T2DMPTB),which has risen from 19.3%to 24.1%.It is evident that these two diseases are intricately interconnected and mutually reinforcing in *** To elucidate the clinical features of individuals diagnosed with both T2DM and tuberculosis(T2DM-PTB),as well as to investigate the potential risk factors associated with active tuberculosis in patients with *** T2DM-PTB patients who visited our hospital between January 2020 and January 2023 were selected as the observation group,Simple DM patients presenting to our hospital in the same period were the control group,Controls and case groups were matched 1:2 according to the principle of the same sex,age difference(±3)years and disease duration difference(±5)years,patients were investigated for general demographic characteristics,diabetes-related characteristics,body immune status,lifestyle and behavioral habits,univariate and multivariate analysis of the data using conditional logistic regression,calculate the odds ratio(OR)values and 95%CI of OR *** A total of 315 study subjects were included in this study,including 105 subjects in the observation group and 210 subjects in the control *** of the results of both anthropometric and biochemical measures showed that the constitution index,systolic blood pressure,diastolic blood pressure and lymphocyte count were significantly lower in the case group,while fasting blood glucose and high-density lipoprotein cholesterol levels were significantly higher than those in the control ***

关键词： Type 2 diabetes Pulmonary tuberculosis Blood sugar Infection Risk factors

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Inhibition of hepatitis B virus via selective apoptosis modulation by Chinese patent medicine Liuweiwuling Tablet

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World Journal of Gastroenterology 2024年第13期30卷 1911-1925页

作者： Fei-Lin Ge Yan Yang Lan-Lan Si Yuan-Hua Li Meng-Zhen Cao Jun Wang Zhao-Fang Bai Zhi-Gang Ren Xiao-He Xiao Yan Liu Department of Chinese Medicine State Key Laboratory of Antiviral DrugsThe First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052Henan ProvinceChina The Fifth Medical Center of Chinese PLA General Hospital Beijing 100039China College of Traditional Chinese Medicine Chongqing Medical UniversityChongqing 400010China Beijing Key laboratory of Emerging infectious diseases Peking University Ditan Teaching HospitalBeijing 100015China Department of infectious diseases State Key Laboratory of Antiviral Drugsthe First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052Henan ProvinceChina

BACKGROUND Liuweiwuling Tablet(LWWL)is a Chinese patent medicine approved for the treatment of chronic inflammation caused by hepatitis B virus(HBV)*** studies have indicated an anti-HBV effect of LWWL,specifically in terms of antigen inhibition,but the underlying mechanism remains *** To investigate the potential mechanism of action of LWWL against *** In vitro experiments utilized three HBV-replicating and three non-HBV-replicating cell *** in vivo experiment involved a hydrodynamic injectionmediated mouse model with HBV *** and metabolomics were used to investigate the underlying mechanisms of action of *** In HepG2.1403F cells,LWWL(0.8 mg/mL)exhibited inhibitory effects on HBV DNA,hepatitis B surface antigen and pregenomic RNA(pgRNA)at rates of 51.36%,24.74%and 50.74%,*** inhibition rates of LWWL(0.8mg/mL)on pgRNA/covalently closed circular DNA in HepG2.1403F,HepG2.2.15 and HepG2.A64 cells were 47.78%,39.51%and 46.74%,*** of transcriptomics and metabolomics showed that the anti-HBV effect of LWWL was primarily linked to pathways related to apoptosis(PI3K-AKT,CASP8-CASP3 and P53 pathways).Apoptosis flow analysis revealed that the apoptosis rate in the LWWL-treated group was significantly higher than in the control group(CG)among HBV-replicating cell lines,including HepG2.2.15(2.92%±1.01%vs 6.68%±2.04%,P0.05),L02 cells(5.49%±0.80%vs 5.48%±1.01%,P>0.05)and LX2 cells(6.29%±1.54%vs 6.29%±0.88%,P>0.05).TUNEL staining revealed a significantly higher apoptosis rate in the LWWL-treated group than in the CG in the HBVreplicating mouse model,while no noticeable difference in apoptosis rates between the two groups

关键词： Hepatitis B virus Chinese patent medicine Antiviral activity Antiviral mechanism Selective apoptosis

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Epidemiological Characterization of Dengue Fever—Yunnan Province,China,2010-2021

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China CDC weekly 2024年第20期6卷 457-462,I0002-I0007页

作者： Xiaoxiang Zhu Songwang Wang Yanfei Li Yu Cao Xuemei Su Xiaotao Zhao National Key laboratory of Intelligent Tracking and Forecasting for infectious diseases Chinese Center for Disease Control and PreventionBeijingChina Yunnan Institute of Parasitic diseases Pu’er CityYunnan ProvinceChina

Objective:The goal of this study is to analyze the epidemiological patterns of dengue fever across different districts and counties in Yunnan Province from 2010 to ***:In this study,we employed joinpoint regression analysis,spatial autocorrelation analysis,and space-time scan analysis to illustrate the spatiotemporal propagation and demographic influence of dengue fever,using both graphical and tabular presentations to clearly demonstrate the ***:Yunnan Province reported 14,098 cases of dengue fever during the period from 2010 to *** these,11,513 cases were caused by local transmission,2,566 were imported internationally,and 19 were inter-provincial *** trends emerged,revealing a surge in incidences during the summer and autumn *** sex ratio of male to female cases was 1:0.88,with a significant majority of 82.00%of cases involving individuals belonging to the age group of *** service workers constituted the most impacted occupational group,forming 20.96%of total cases.A spatio-temporal scan identified significant clustering of dengue fever cases across space and time,with the most pronounced cluster observed in southern Yunnan,primarily between 2015 and ***:Dengue fever in Yunnan Province manifests as biennial outbreaks,underscoring the necessity for increased surveillance,particularly in counties bordering other regions.

关键词： counties district revealing

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Drug repurposing screen identifies vidofludimus calcium and pyrazofurin as novel chemical entities for the development of hepatitis E interventions

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Virologica Sinica 2024年第1期39卷 123-133页

作者： Hongbo Guo Dan Liu Kuan Liu Yao Hou Chunyang Li Qiudi Li Xiaohui Ding Monique M.A.Verstegen Jikai Zhang Lingli Wang Yibo Ding Renxian Tang Xiucheng Pan Kuiyang Zheng Luc J.Wvan der Laan Qiuwei Pan Wenshi Wang Department of Pathogen Biology and immunology Jiangsu Key Laboratory of Immunity and MetabolismJiangsu International Laboratory of Immunity and MetabolismXuzhou Medical UniversityXuzhou221004China Department of Gastroenterology and Hepatology Erasmus MC-University Medical CenterRotterdamNL-3015 CNthe Netherlands Department of Surgery Erasmus MC Transplant InstituteUniversity Medical CenterRotterdam3015CENL-3015 CNthe Netherlands Department of infectious diseases The Affiliated Hospital of Xuzhou Medical UniversityXuzhou221002China

Hepatitis E virus(HEV)infection can cause severe complications and high mortality,particularly in pregnant women,organ transplant recipients,individuals with pre-existing liver disease and immunosuppressed ***,there are still unmet needs for treating chronic HEV ***,we screened a best-in-class drug repurposing library consisting of 262 drugs/*** screening,we identified vidofludimus calcium and pyrazofurin as novel anti-HEV *** calcium is the next-generation dihydroorotate dehydrogenase(DHODH)inhibitor in the phase 3 pipeline to treat autoimmune diseases or SARS-CoV-2 *** selectively targets uridine monophosphate synthetase(UMPS).Their anti-HEV effects were further investigated in a range of cell culture models and human liver organoids models with wild type HEV strains and ribavirin treatment failure-associated HEV ***,both drugs exhibited a sizeable therapeutic window against *** instance,the IC50 value of vidofludimus calcium is 4.6–7.6-fold lower than the current therapeutic doses in ***,their anti-HEV mode of action depends on the blockage of pyrimidine ***,two drugs robustly inhibited ribavirin treatment failure-associated HEV mutants(Y1320H,G1634R).Their combination with IFN-αresulted in synergistic antiviral *** conclusion,we identified vidofludimus calcium and pyrazofurin as potent candidates for the treatment of HEV *** on their antiviral potency,and also the favorable safety profile identified in clinical studies,our study supports the initiation of clinical studies to repurpose these drugs for treating chronic hepatitis E.

关键词： Hepatitis Evirus(HEV) Drug repurposing Vidofludimus calcium Pyrazofurin Pyrimidine biosynthesis

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Species-level Microbiota of Biting Midges and Ticks from Poyang Lake

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Biomedical and Environmental Sciences 2024年第3期37卷 266-277,I0001-I0003页

作者： GONG Jian WANG Fei Fei LIU Yang Qing PU Ji DONG Ling Zhi ZHANG Si Hui HUANG Zhen Zhou HUANG Yu Yuan LI Ya Ben YANG Cai Xin TAO Yuan Meihui ZHAO Li Jun JIN Dong LIU Li Yun YANG Jing LU Shan Department of Epidemiology School of Public HealthShanxi Medical UniversityTaiyuan 030001ShanxiChina National Key laboratory of Intelligent Tracking and Forecasting for infectious diseases National Institute for Communicable Disease Control and PreventionChinese Center for Disease Control and PreventionBeijing 102206China Jiangxi Provincial Key laboratory of Animal-Origin and Vector-Borne diseases Nanchang Center for Disease Control and PreventionNanchang 330038JiangxiChina research Units of Discovery of Unknown Bacteria and Function Chinese Academy of Medical SciencesBeijing 100730China

Objective The purpose of this study was to investigate the bacterial communities of biting midges and ticks collected from three sites in the Poyang Lake area,namely,Qunlu Practice Base,Peach Blossom Garden,and Huangtong Animal Husbandry,and whether vectors carry any bacterial pathogens that may cause diseases to humans,to provide scientific basis for prospective pathogen discovery and disease prevention and *** Using a metataxonomics approach in concert with full-length 16S rRNA gene sequencing and operational phylogenetic unit(OPU)analysis,we characterized the species-level microbial community structure of two important vector species,biting midges and ticks,including 33 arthropod samples comprising 3,885 individuals,collected around Poyang *** A total of 662 OPUs were classified in biting midges,including 195 known species and 373 potentially new species,and 618 OPUs were classified in ticks,including 217 known species and 326 potentially new ***,OPUs with potentially pathogenicity were detected in both arthropod vectors,with 66 known species of biting midges reported to carry potential pathogens,including Asaia lannensis and Rickettsia bellii,compared to 50 in ticks,such as Acinetobacter lwoffii and Staphylococcus *** found that Proteobacteria was the most dominant group in both midges and ***,the outcomes demonstrated that the microbiota of midges and ticks tend to be governed by a few highly abundant *** sp7 was predominant in biting midges,while Coxiella sp1 was enriched in ***,Coxiella spp.,which may be essential for the survival of Haemaphysalis longicornis Neumann,were detected in all tick *** identification of dominant species and pathogens of biting midges and ticks in this study serves to broaden our knowledge associated to microbes of arthropod *** Biting midges and ticks carry large numbers of known and potentially novel bacteria,and carry a wide

关键词： Biting midge Tick Microbiota Pantoea Coxiella

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Antibodies Targeting a Conserved Surface Polysaccharide Are Protective Against a Wide Range of Microbial Pathogens Producing β-1-6-Linked Poly-N-Acetylglucosamine(PNAG)

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Engineering 2024年第7期38卷 69-76页

作者： Xi Lu Guoqing Li Jing Pang Xinyi Yang Colette Cywes-Bentley Xuefu You Gerald B.Pier Beijing Key laboratory of Antimicrobial Agents Institute of Medicinal BiotechnologyChinese Academy of Medical Sciences&Peking Union Medical CollegeBeijing 100050China Division of infectious diseases Department of MedicineBrigham and Women’s HospitalHarvard Medical SchoolBostonMA 02115USA

The b-1-6-linked poly-N-acetylglucosamine(PNAG)polymer is a conserved surface polysaccharide produced by many bacteria,fungi,and protozoan(and even filarial)*** wide-ranging expression makes PNAG an attractive target for vaccine development,as it potentially encompasses a broad range of *** progress has been made in discovering important properties of the biology of PNAG expression in recent *** molecular characterization and regulation of operons for the production of PNAG biosynthetic proteins and enzymes have been studied in many *** addition,the physiological function of PNAG has been further ***-based vaccines and PNAG-targeting antibodies have shown great efficacy in preclinical ***,clinical tests for both vaccines and antibodies have been carried out in humans and economically important animals,and the results are *** it is not destined to be a smooth road,we are optimistic about new vaccines and immunotherapeutics targeting PNAG becoming validated and eventually licensed for clinical use against multiple infectious agents.

关键词： Poly-N-acetylglucosamine Conjugate vaccine Monoclonal antibody

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Identification of novel mammalian viruses in tree shrews(Tupaia belangeri chinensis)

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Zoological research 2024年第2期45卷 429-438页

作者： Hong Zhou Ren-Rong Tian Xiu-Rong Wang Jin-Xuan Yang Yun-Xiao Wang Ming-Liang Zhao Xu-Dong Zhang Yu-Hua Ma Long-Bao Lv Edward CHolmes Yong-Tang Zheng Wei-Feng Shi School of Clinical and Basic Medical Sciences Shandong First Medical University&Shandong Academy of Medical SciencesJi’nanShandong 250117China Key laboratory of Emerging infectious diseases in Universities of Shandong Shandong First Medical University and Shandong Academy of Medical SciencesTaianShandong 271000China Key laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences/Key laboratory of Bioactive Peptides of Yunnan Province KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common DiseasesCenter for Biosafety Mega-ScienceKunming Institute of ZoologyChinese Academy of SciencesKunmingYunnan 650223China School of Public Health Shandong First Medical University&Shandong Academy of Medical SciencesJi’nanShandong 250117China National Resource Center for Non-Human Primates Kunming Primate Research CenterKunming Institute of ZoologyChinese Academy of SciencesKunmingYunnan 650107China Sydney Institute for infectious diseases School of Medical SciencesThe University of SydneySydneyNew South Wales 2006Australia Department of infectious diseases Ruijin HospitalShanghai Jiao Tong University School of MedicineShanghai 200025China Shanghai Institute of Virology Shanghai Jiao Tong University School of MedicineShanghai 200025China

The Chinese tree shrew(Tupaia belangeri chinensis),a member of the mammalian order Scandentia,exhibits considerable similarities with primates,including humans,in aspects of its nervous,immune,and metabolic *** similarities have established the tree shrew as a promising experimental model for biomedical research on cancer,infectious diseases,metabolic disorders,and mental health ***,we used metatranscriptomic sequencing to analyze plasma,as well as oral and anal swab samples,from 105 healthy asymptomatic tree shrews to identify the presence of potential zoonotic *** total,eight mammalian viruses with complete genomes were identified,belonging to six viral families,including Flaviviridae,Hepeviridae,Parvovirinae,Picornaviridae,Sedoreoviridae,and ***,the presence of rotavirus was recorded in tree shrews for the first *** viruses-hepacivirus 1,parvovirus,and picornavirus-exhibited low genetic similarity(94%)to known viral *** analyses also revealed that the rotavirus and mammalian orthoreovirus identified in this study may be novel *** findings provide insights into the diverse viral spectrum present in captive Chinese tree shrews,highlighting the necessity for further research into their potential for crossspecies transmission.

关键词： Tree shrew(Tupaia belangeri chinensis) Meta-transcriptomic sequencing Mammalian viruses Genomic analysis

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Exploring the multicomponent synergy mechanism of Zuogui Wan(左归丸) on postmenopausal osteoporosis by a systems pharmacology strategy

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Journal of Traditional Chinese Medicine 2024年第3期44卷 489-495页

作者： FENG Yanchen LIU Yali DANG Xue LIN Zixuan ZHANG Yunke CHE Zhiying LI Xiang PAN Xiaolong LIU Feixiang ZHENG Pan Traditional Chinese Medicine(Zhong Jing)School Henan University of Chinese MedicineZhengzhou 450046China Hospital of Encephalopathy the First Affiliated Hospital of Henan University of Chinese MedicineZhengzhou 450000China State Key laboratory for Diagnosis and Treatment of infectious diseases National Clinical Research Center for Infectious DiseasesCollaborative Innovation Center for Diagnosis and Treatment of Infectious Diseasesthe First Affiliated HospitalZhejiang University School of MedicineResearch Units of Infectious Disease and MicroecologyChinese Academy of Medical SciencesHangzhou 31000China

OBJECTIVE: To explore the multi-component synergistic mechanism of Zuogui Wan(左归丸, ZGW) in treating postmenopausal osteoporosis(PMOP). METHODS: The main components and target genes of ZGW were screened via the Traditional Chinese Medicine Systems Pharmacology(TCMSP). In addition, the target gene sets of PMOP were derived from the Gene Cards and Online Mendelian Inheritance in Man databases. The search tool for recurring instances of neighbouring genes(STRING) 11.0 software was used to analyze the interaction among intersecting genes. Cytoscape 3.6.1 software and the Matthews correlation coefficient(MCC) algorithm were used to screen the core genes. Fifty Sprague-Dawley female rats were randomly divided into the sham-operated(Sham) group and the four ovariectomized(OVX) subgroups. Rats subjected to Sham or OVX were administered with the vehicle(OVX, 1 m L water/100 g weight), 17β-estradiol(E2, 50 μg·kg-1·d-1), and lyophilized powder of ZGW at a low dose of 2.3(ZGW-L) and high dose of 4.6(ZGW-H) g·kg-1·d-1 for three months. The bone density and bone strength were assessed using dual-energy X-ray and three-point bending tests, respectively. Furthermore, enzyme-linked immunosorbent assay, Hematoxylin-eosin staining, and western blot analysis were used to determine the potential pharmacological mechanisms of action of ZGW in PMOP. RESULTS: A total of 117 active compounds of ZGW were screened from the TCMSP. Furthermore, 108 intersecting genes of drugs and diseases were identified. Using STRING software and the MCC algorithm, ten core genes, including C-X-C chemokine living 8(CXCL8), C-C chemokine receptor type 2(CCR2), alpha-2a active receptor(ADRA2A), melatonin receptor type 1B(MTNR1B), and amyloid-beta A4 protein(APP), were identified. The anti-osteoporosis regulation network of ZGW was constructed using the Cytoscape software. The animal experiments demonstrated that ZGW groups significantly reduced the serum levels of β-C-terminal telopeptide of type I collagen(β-CTX

关键词： osteoporosis postmenopausal network pharmacology Zuogui Wan

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