1.Agitation of TGR5 by INT-777 protected hypoxic-ischemic encephalopathy in neonatal rats
Rong-jie LIU ; Qin CHEN ; Ying XIONG ; Zhao-yun WANG ; Chang-ling CHEN ; Qin ZHANG ; Mao-qiong CHEN ; Zhan-hui FENG ; Lan YE
Chinese Pharmacological Bulletin 2025;41(6):1085-1090
Aim To investigate the neuroprotective effect of Takeda G protein-coupled receptor-5(TGR5)activated by INT-777 on hypoxic-ischemic encephalop-athy(HIE)in neonatal rats.Methods Seven-day-old SD rats were randomly divided into the sham opera-tion group(Sham,S),model group(HIE,G),INT-777 low-dose(L),medium-dose(M),and high-dose(H)groups.The modified Rice-Vanucci method was used to construct the HIE model and Intranasal admin-istration 1 h after modeling.Short-term neurobehavioral tests were performed 48 h after modeling to evaluate the neurological function of neonatal rats,TTC staining was used to determine the volume of cerebral infarction,dry and wet specific gravity was used to determine the brain water content,ferrous ion kit was used to deter-mine the brain ferrous ion content,HE staining was used to observe the pathological damage of brain tis-sue,Nissl staining was used to observe the loss of Nissl substance,Transmission electron microscopy(TEM)was used to observe the mitochondrial morphological changes of cortical neurons,and Western blot was em-ployed to detect the expression of ferroptosis-related proteins TFR1 and GPX4.Results Compared with group S,group G had increased short-term neurobehav-ioral test consumption time,higher scores,increased cerebral infarct volume,brain water content,and brain ferrous iron content,significant brain tissue damage on the affected side,severe loss of Nissl substance,smaller neuronal mitochondria,decreased mitochondrial cris-tae,and increased expression of TFR1 and reduced ex-pression of GPX4.Compared with group G,the INT-777 administration group had a shorter consumption time for short-term neurobehavioral tests,lower scores,the cerebral infarction volume,brain water content,and brain ferrous ion content decreased,the brain tissue damage on the affected side was reduced,and there was insignificant loss of Nissl substance,larger neuronal mi-tochondrial volume,increased mitochondrial cristae,re-duced expression of TFR1,and increased expression of GPX4.Conclusions INT-777 agonist TGR5 has a protective effect against hypoxic-ischemic encephalopa-thy in neonatal rats,and its mechanism of action may be related to the inhibition of neuronal ferroptosis.
2.Agitation of TGR5 by INT-777 protected hypoxic-ischemic encephalopathy in neonatal rats
Rong-jie LIU ; Qin CHEN ; Ying XIONG ; Zhao-yun WANG ; Chang-ling CHEN ; Qin ZHANG ; Mao-qiong CHEN ; Zhan-hui FENG ; Lan YE
Chinese Pharmacological Bulletin 2025;41(6):1085-1090
Aim To investigate the neuroprotective effect of Takeda G protein-coupled receptor-5(TGR5)activated by INT-777 on hypoxic-ischemic encephalop-athy(HIE)in neonatal rats.Methods Seven-day-old SD rats were randomly divided into the sham opera-tion group(Sham,S),model group(HIE,G),INT-777 low-dose(L),medium-dose(M),and high-dose(H)groups.The modified Rice-Vanucci method was used to construct the HIE model and Intranasal admin-istration 1 h after modeling.Short-term neurobehavioral tests were performed 48 h after modeling to evaluate the neurological function of neonatal rats,TTC staining was used to determine the volume of cerebral infarction,dry and wet specific gravity was used to determine the brain water content,ferrous ion kit was used to deter-mine the brain ferrous ion content,HE staining was used to observe the pathological damage of brain tis-sue,Nissl staining was used to observe the loss of Nissl substance,Transmission electron microscopy(TEM)was used to observe the mitochondrial morphological changes of cortical neurons,and Western blot was em-ployed to detect the expression of ferroptosis-related proteins TFR1 and GPX4.Results Compared with group S,group G had increased short-term neurobehav-ioral test consumption time,higher scores,increased cerebral infarct volume,brain water content,and brain ferrous iron content,significant brain tissue damage on the affected side,severe loss of Nissl substance,smaller neuronal mitochondria,decreased mitochondrial cris-tae,and increased expression of TFR1 and reduced ex-pression of GPX4.Compared with group G,the INT-777 administration group had a shorter consumption time for short-term neurobehavioral tests,lower scores,the cerebral infarction volume,brain water content,and brain ferrous ion content decreased,the brain tissue damage on the affected side was reduced,and there was insignificant loss of Nissl substance,larger neuronal mi-tochondrial volume,increased mitochondrial cristae,re-duced expression of TFR1,and increased expression of GPX4.Conclusions INT-777 agonist TGR5 has a protective effect against hypoxic-ischemic encephalopa-thy in neonatal rats,and its mechanism of action may be related to the inhibition of neuronal ferroptosis.
3.Clinical Analysis of Epstein-Barr Virus Infection after Allogeneic Hematopoietic Stem Cell Transplantation
Lan-Xiang LIU ; Jing WANG ; Li WANG ; Lin LIU ; Xin WANG ; Hong-Bin ZHANG ; Xiao-Qiong TANG ; Yi-Ying XIONG
Journal of Experimental Hematology 2024;32(4):1217-1223
Objective:To analyze the risk factors of Epstein-Barr virus(EBV)infection after allogeneic hematopoietic stem cell transplantation(allo-HSCT)and its impact on survival.Methods:The clinical data of 347 patients who underwent their first allo-HSCT in our hospital from January 2014 to June 2021 were retrospectively analyzed.Patients were divided into EBV(n=114)and Non-EBV(n=233)groups according to whether they were infected with EBV.The incidence of EBV infection after allo-HSCT was calculated,and the risk factors of EBV infection were analyzed.Results:A total of 114(32.8%)patients presented EBV infection(all peripheral blood EBV-DNA were positive).EBV infection occurred in 88 patients within 100 days after transplantation,which accounted for 77.2%of all patients with EBV infection.5 cases(1.44%)were confirmed as post-transplant lymphoproliferative disorder(PTLD).The median onset time of patients was 57(7-486)days after transplantation.Multivariate analysis showed that the use of ATG/ATG-F,occurrence of CMV viremia,and grade Ⅲ-Ⅳ aGVHD were risk factors for EBV infection.Furthermore,compared to BUCY,the use of intensified preconditioning regimens containing FA/CA was significantly increased the risk of EBV infection.Conclusion:EBV infection is a common complication after allo-HSCT.Intensified preconditioning regimens,use of ATG/ATG-F,CMV viremia and grade Ⅲ to Ⅳ aGVHD increase the risk of EBV infection after allo-HSCT.
4.Exploring the feasibility of endoscopic surgery by gastrointestinal surgeons: surgeon′s perspective
Jun LUO ; Bei LI ; Ying YU ; Tingting HUANG ; Lan CHEN ; Meiwen HE ; Shaowei XIONG ; Mingxuan ZHU ; Zhanlong SHEN ; Guoqing LYU
Chinese Journal of Digestive Surgery 2024;23(8):1123-1126
Due to traditional professional divisions, the practice of endoscopy by gastro-intestinal surgeons in China remains controversial. However, with the evolution of treatment philo-sophies, medical technology, and equipment advancements, a trend of integration between tradi-tional surgery and endoscopy is emerging. Gastrointestinal surgeons performing endoscopy can maxi-mize patient benefits, and they naturally possess advantages in conducting endoscopic procedures. It is recommended to further establish entry thresholds for surgeons to perform endoscopy, provide standardized endoscopic training for surgeons, and coordinate efforts at the administrative depart-ment. With the support of artificial intelligence, more patients can receive minimally invasive, indivi-dualized, and precise treatments.
5.Association of serum TRAF6 and HDAC3 levels with severity of coronary artery disease and prognosis in patients with acute myocardial infarction
Hao ZHANG ; Qiao-ling XU ; Wen-yi HU ; Ying-lan XIONG ; Shi-ge XIANG ; Cui-ying FAN ; Xiao-qian RUAN
Chinese Journal of cardiovascular Rehabilitation Medicine 2024;33(6):729-733
Objective:To investigate the association of serum levels of tumor necrosis factor receptor-related factor 6(TRAF6)and histone deacetylase 3(HDAC3)with severity of coronary artery disease and prognosis in patients with acute myocardial infarction(AMI).Methods:A total of 122 AMI patients admitted Macheng Traditional Chinese Medicine Hospital between July 2019 and December 2020 were selected,divided into low score group(n=73,<20 points)and high score group(n=49,≥20 points)according to Gensini score.Association of serum levels of TRAF6 and HDAC3 with Gensini score was analyzed by Pearson method.According to survival condition during hospitalization within 28d,they were divided into survival group(n=85)and death group(n=37).Cox regression model was used to analyze the influencing factors for death within 28d in AMI patients;receiver operating charac-teristic(ROC)curve was used to analyze the predictive efficacy of TRAF6 and HDAC3 for death within 28d in AMI patients.Results:Patients in high score group had significant higher serum levels of TRAF6[(6.01±2.39)μg/ml vs.(5.06±1.74)μg/ml,P=0.012]and HDAC3[(4.14±1.94)ng/ml vs.(2.87±1.37)ng/ml,P<0.001]compared with low score group.Pearson correlation analysis indicated that serum levels of TRAF6 and HDAC3 were positively correlated with Gensini score(r=0.879,0.837,P<0.001 all).Patients in death group had significant higher serum levels of TRAF6[(6.89±1.67)μg/ml vs.(4.81±1.24)μg/ml,P<0.001]and HDAC3[(5.37±1.77)ng/ml vs.(2.52±0.76)ng/ml,P<0.001]compared with those in survival group.Cox regression analysis indicated that Gensini score[HR=1.857,95%CI 1.259~2.737,P=0.001],TRAF6[HR=1.659,95%CI 1.083~2.543,P=0.022],HDAC3[HR=1.779,95%CI 1.192~2.653,P=0.004]were independent risk factors for death within 28d in AMI patients.ROC curve analysis indicated that AUC of TRAF6,HDAC3 and their combina-tion predicting death within 28d in AMI patients was 0.862,0.859 and 0.971 respectively,and AUC of combination was significantly higher than those of TRAF6 and HDAC3 alone(Z=2.535,2.032,P=0.011,0.042).Conclu-sion:Serum levels of TRAF6 and HDAC3 are closely related to severity of coronary artery disease and prognosis in AMI patients,and dual combination possesses good predictive value for prognosis in AMI patients.
6.Chinese expert consensus on blood support mode and blood transfusion strategies for emergency treatment of severe trauma patients (version 2024)
Yao LU ; Yang LI ; Leiying ZHANG ; Hao TANG ; Huidan JING ; Yaoli WANG ; Xiangzhi JIA ; Li BA ; Maohong BIAN ; Dan CAI ; Hui CAI ; Xiaohong CAI ; Zhanshan ZHA ; Bingyu CHEN ; Daqing CHEN ; Feng CHEN ; Guoan CHEN ; Haiming CHEN ; Jing CHEN ; Min CHEN ; Qing CHEN ; Shu CHEN ; Xi CHEN ; Jinfeng CHENG ; Xiaoling CHU ; Hongwang CUI ; Xin CUI ; Zhen DA ; Ying DAI ; Surong DENG ; Weiqun DONG ; Weimin FAN ; Ke FENG ; Danhui FU ; Yongshui FU ; Qi FU ; Xuemei FU ; Jia GAN ; Xinyu GAN ; Wei GAO ; Huaizheng GONG ; Rong GUI ; Geng GUO ; Ning HAN ; Yiwen HAO ; Wubing HE ; Qiang HONG ; Ruiqin HOU ; Wei HOU ; Jie HU ; Peiyang HU ; Xi HU ; Xiaoyu HU ; Guangbin HUANG ; Jie HUANG ; Xiangyan HUANG ; Yuanshuai HUANG ; Shouyong HUN ; Xuebing JIANG ; Ping JIN ; Dong LAI ; Aiping LE ; Hongmei LI ; Bijuan LI ; Cuiying LI ; Daihong LI ; Haihong LI ; He LI ; Hui LI ; Jianping LI ; Ning LI ; Xiying LI ; Xiangmin LI ; Xiaofei LI ; Xiaojuan LI ; Zhiqiang LI ; Zhongjun LI ; Zunyan LI ; Huaqin LIANG ; Xiaohua LIANG ; Dongfa LIAO ; Qun LIAO ; Yan LIAO ; Jiajin LIN ; Chunxia LIU ; Fenghua LIU ; Peixian LIU ; Tiemei LIU ; Xiaoxin LIU ; Zhiwei LIU ; Zhongdi LIU ; Hua LU ; Jianfeng LUAN ; Jianjun LUO ; Qun LUO ; Dingfeng LYU ; Qi LYU ; Xianping LYU ; Aijun MA ; Liqiang MA ; Shuxuan MA ; Xainjun MA ; Xiaogang MA ; Xiaoli MA ; Guoqing MAO ; Shijie MU ; Shaolin NIE ; Shujuan OUYANG ; Xilin OUYANG ; Chunqiu PAN ; Jian PAN ; Xiaohua PAN ; Lei PENG ; Tao PENG ; Baohua QIAN ; Shu QIAO ; Li QIN ; Ying REN ; Zhaoqi REN ; Ruiming RONG ; Changshan SU ; Mingwei SUN ; Wenwu SUN ; Zhenwei SUN ; Haiping TANG ; Xiaofeng TANG ; Changjiu TANG ; Cuihua TAO ; Zhibin TIAN ; Juan WANG ; Baoyan WANG ; Chunyan WANG ; Gefei WANG ; Haiyan WANG ; Hongjie WANG ; Peng WANG ; Pengli WANG ; Qiushi WANG ; Xiaoning WANG ; Xinhua WANG ; Xuefeng WANG ; Yong WANG ; Yongjun WANG ; Yuanjie WANG ; Zhihua WANG ; Shaojun WEI ; Yaming WEI ; Jianbo WEN ; Jun WEN ; Jiang WU ; Jufeng WU ; Aijun XIA ; Fei XIA ; Rong XIA ; Jue XIE ; Yanchao XING ; Yan XIONG ; Feng XU ; Yongzhu XU ; Yongan XU ; Yonghe YAN ; Beizhan YAN ; Jiang YANG ; Jiangcun YANG ; Jun YANG ; Xinwen YANG ; Yongyi YANG ; Chunyan YAO ; Mingliang YE ; Changlin YIN ; Ming YIN ; Wen YIN ; Lianling YU ; Shuhong YU ; Zebo YU ; Yigang YU ; Anyong YU ; Hong YUAN ; Yi YUAN ; Chan ZHANG ; Jinjun ZHANG ; Jun ZHANG ; Kai ZHANG ; Leibing ZHANG ; Quan ZHANG ; Rongjiang ZHANG ; Sanming ZHANG ; Shengji ZHANG ; Shuo ZHANG ; Wei ZHANG ; Weidong ZHANG ; Xi ZHANG ; Xingwen ZHANG ; Guixi ZHANG ; Xiaojun ZHANG ; Guoqing ZHAO ; Jianpeng ZHAO ; Shuming ZHAO ; Beibei ZHENG ; Shangen ZHENG ; Huayou ZHOU ; Jicheng ZHOU ; Lihong ZHOU ; Mou ZHOU ; Xiaoyu ZHOU ; Xuelian ZHOU ; Yuan ZHOU ; Zheng ZHOU ; Zuhuang ZHOU ; Haiyan ZHU ; Peiyuan ZHU ; Changju ZHU ; Lili ZHU ; Zhengguo WANG ; Jianxin JIANG ; Deqing WANG ; Jiongcai LAN ; Quanli WANG ; Yang YU ; Lianyang ZHANG ; Aiqing WEN
Chinese Journal of Trauma 2024;40(10):865-881
Patients with severe trauma require an extremely timely treatment and transfusion plays an irreplaceable role in the emergency treatment of such patients. An increasing number of evidence-based medicinal evidences and clinical practices suggest that patients with severe traumatic bleeding benefit from early transfusion of low-titer group O whole blood or hemostatic resuscitation with red blood cells, plasma and platelet of a balanced ratio. However, the current domestic mode of blood supply cannot fully meet the requirements of timely and effective blood transfusion for emergency treatment of patients with severe trauma in clinical practice. In order to solve the key problems in blood supply and blood transfusion strategies for emergency treatment of severe trauma, Branch of Clinical Transfusion Medicine of Chinese Medical Association, Group for Trauma Emergency Care and Multiple Injuries of Trauma Branch of Chinese Medical Association, Young Scholar Group of Disaster Medicine Branch of Chinese Medical Association organized domestic experts of blood transfusion medicine and trauma treatment to jointly formulate Chinese expert consensus on blood support mode and blood transfusion strategies for emergency treatment of severe trauma patients ( version 2024). Based on the evidence-based medical evidence and Delphi method of expert consultation and voting, 10 recommendations were put forward from two aspects of blood support mode and transfusion strategies, aiming to provide a reference for transfusion resuscitation in the emergency treatment of severe trauma and further improve the success rate of treatment of patients with severe trauma.
7.Structural characteristics and phylogenetic analysis of chloroplast genomes of four species of Lonicera
Yao XIONG ; Ling-fei TONG ; Lan CAO ; Ze-jing MU ; Cheng-ying SHEN ; Xiao-lang DU
Acta Pharmaceutica Sinica 2024;59(11):3164-3171
italic>Lonicera Linn.
8.Ginsenoside Rh1 regulates the immune microenvironment of hepatocellular carcinoma via the glucocorticoid receptor.
Xiong-Hui WANG ; Ya-Lan FU ; Yan-Nan XU ; Peng-Cheng ZHANG ; Tian-Xiao ZHENG ; Chang-Quan LING ; Ying-Lu FENG
Journal of Integrative Medicine 2024;22(6):709-718
OBJECTIVE:
Ginsenoside Rh1 (G-Rh1) has been confirmed to inhibit the growth of breast cancer and colon cancer, but its therapeutic effect on hepatocellular carcinoma (HCC) is unclear. This study investigates the therapeutic effect of G-Rh1 on HCC as well as the underlying mechanism.
METHODS:
Bioinformatics methods were used to analyze glucocorticoid receptor (GR) expression and the tumor microenvironment in HCC tissues from HCC patients. The effect of G-Rh1 on HCC cells was investigated in vitro using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide method. The therapeutic effect of G-Rh1 was investigated in vivo using subcutaneous transplantation models in C57BL/6J and nude mice. Additionally, the proportion of infiltrating immune cells in tumors was analyzed using flow cytometry, the GR and major histocompatibility complex class-I (MHC-I) expression of HCC cells after G-Rh1 treatment was analyzed using Western blotting, and G-Rh1-treated Hepa1-6 cells were cocultured with bone marrow-derived dendritic cells and B3Z T cells to further analyze the ability of G-Rh1 to induce dendritic cell (DC) maturation and CD8+ T cell activation.
RESULTS:
GR expression was upregulated in HCC tissues, and high GR expression was associated with a worsened immune microenvironment. In vitro studies showed that G-Rh1 had no significant effect on the proliferation of HCC cells, while in vivo studies showed that G-Rh1 exerted antitumor effects in C57BL/6J mice but not in nude mice. Further research revealed that G-Rh1 ameliorated the immunosuppressive tumor microenvironment, thereby enhancing the antitumor effects of lenvatinib by increasing the infiltration of CD8+ T cells, mature DCs, and MHC-I-positive cells. MHC-I was upregulated by G-Rh1 via GR suppression. Moreover, overexpression of GR abolished the G-Rh1-mediated promotion of MHC-I expression in Huh7 cells, as well as the maturation of DCs and the activation of CD8+ T cells.
CONCLUSION
G-Rh1 can regulate the immune microenvironment of HCC by targeting GR, thus increasing the antitumor effect of lenvatinib. Please cite this article as: Wang XH, Fu YL, Xu YN, Zhang PC, Zheng TX, Ling CQ, Feng YL. Ginsenoside Rh1 regulates the immune microenvironment of hepatocellular carcinoma via the glucocorticoid receptor. J Integr Med. 2024; 22(6): 710-720.
Carcinoma, Hepatocellular/genetics*
;
Ginsenosides/pharmacology*
;
Animals
;
Liver Neoplasms/genetics*
;
Receptors, Glucocorticoid/genetics*
;
Tumor Microenvironment/drug effects*
;
Humans
;
Mice, Inbred C57BL
;
Mice
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Mice, Nude
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Cell Line, Tumor
;
Male
;
Dendritic Cells/drug effects*
9.Association of serum TRAF6 and HDAC3 levels with severity of coronary artery disease and prognosis in patients with acute myocardial infarction
Hao ZHANG ; Qiao-ling XU ; Wen-yi HU ; Ying-lan XIONG ; Shi-ge XIANG ; Cui-ying FAN ; Xiao-qian RUAN
Chinese Journal of cardiovascular Rehabilitation Medicine 2024;33(6):729-733
Objective:To investigate the association of serum levels of tumor necrosis factor receptor-related factor 6(TRAF6)and histone deacetylase 3(HDAC3)with severity of coronary artery disease and prognosis in patients with acute myocardial infarction(AMI).Methods:A total of 122 AMI patients admitted Macheng Traditional Chinese Medicine Hospital between July 2019 and December 2020 were selected,divided into low score group(n=73,<20 points)and high score group(n=49,≥20 points)according to Gensini score.Association of serum levels of TRAF6 and HDAC3 with Gensini score was analyzed by Pearson method.According to survival condition during hospitalization within 28d,they were divided into survival group(n=85)and death group(n=37).Cox regression model was used to analyze the influencing factors for death within 28d in AMI patients;receiver operating charac-teristic(ROC)curve was used to analyze the predictive efficacy of TRAF6 and HDAC3 for death within 28d in AMI patients.Results:Patients in high score group had significant higher serum levels of TRAF6[(6.01±2.39)μg/ml vs.(5.06±1.74)μg/ml,P=0.012]and HDAC3[(4.14±1.94)ng/ml vs.(2.87±1.37)ng/ml,P<0.001]compared with low score group.Pearson correlation analysis indicated that serum levels of TRAF6 and HDAC3 were positively correlated with Gensini score(r=0.879,0.837,P<0.001 all).Patients in death group had significant higher serum levels of TRAF6[(6.89±1.67)μg/ml vs.(4.81±1.24)μg/ml,P<0.001]and HDAC3[(5.37±1.77)ng/ml vs.(2.52±0.76)ng/ml,P<0.001]compared with those in survival group.Cox regression analysis indicated that Gensini score[HR=1.857,95%CI 1.259~2.737,P=0.001],TRAF6[HR=1.659,95%CI 1.083~2.543,P=0.022],HDAC3[HR=1.779,95%CI 1.192~2.653,P=0.004]were independent risk factors for death within 28d in AMI patients.ROC curve analysis indicated that AUC of TRAF6,HDAC3 and their combina-tion predicting death within 28d in AMI patients was 0.862,0.859 and 0.971 respectively,and AUC of combination was significantly higher than those of TRAF6 and HDAC3 alone(Z=2.535,2.032,P=0.011,0.042).Conclu-sion:Serum levels of TRAF6 and HDAC3 are closely related to severity of coronary artery disease and prognosis in AMI patients,and dual combination possesses good predictive value for prognosis in AMI patients.
10.Genetic Subtypes and Pretreatment Drug Resistance in the Newly Reported Human Immunodeficiency Virus-Infected Men Aged≥50 Years Old in Guangxi.
Ning-Ye FANG ; Wen-Cui WEI ; Jian-Jun LI ; Ping CEN ; Xian-Xiang FENG ; Dong YANG ; Kai-Ling TANG ; Shu-Jia LIANG ; Yu-Lan SHAO ; Hua-Xiang LU ; He JIANG ; Qin MENG ; Shuai-Feng LIU ; Qiu-Ying ZHU ; Huan-Huan CHEN ; Guang-Hua LAN ; Shi-Xiong YANG ; Li-Fang ZHOU ; Jing-Lin MO ; Xian-Min GE
Acta Academiae Medicinae Sinicae 2023;45(3):399-404
Objective To analyze the genetic subtypes of human immunodeficiency virus (HIV) and the prevalence of pretreatment drug resistance in the newly reported HIV-infected men in Guangxi. Methods The stratified random sampling method was employed to select the newly reported HIV-infected men aged≥50 years old in 14 cities of Guangxi from January to June in 2020.The pol gene of HIV-1 was amplified by nested reverse transcription polymerase chain reaction and then sequenced.The mutation sites associated with drug resistance and the degree of drug resistance were then analyzed. Results A total of 615 HIV-infected men were included in the study.The genetic subtypes of CRF01_AE,CRF07_BC,and CRF08_BC accounted for 57.4% (353/615),17.1% (105/615),and 22.4% (138/615),respectively.The mutations associated with the resistance to nucleoside reverse transcriptase inhibitors (NRTI),non-nucleoside reverse transcriptase inhibitors (NNRTI),and protease inhibitors occurred in 8 (1.3%),18 (2.9%),and 0 patients,respectively.M184V (0.7%) and K103N (1.8%) were the mutations with the highest occurrence rates for the resistance to NRTIs and NNRTIs,respectively.Twenty-two (3.6%) patients were resistant to at least one type of inhibitors.Specifically,4 (0.7%),14 (2.3%),4 (0.7%),and 0 patients were resistant to NRTIs,NNRTIs,both NRTIs and NNRTIs,and protease inhibitors,respectively.The pretreatment resistance to NNRTIs had much higher frequency than that to NRTIs (2.9% vs.1.3%;χ2=3.929,P=0.047).The prevalence of pretreatment resistance to lamivudine,zidovudine,tenofovir,abacavir,rilpivirine,efavirenz,nevirapine,and lopinavir/ritonavir was 0.8%, 0.3%, 0.7%, 1.0%, 1.3%, 2.8%, 2.9%, and 0, respectively. Conclusions CRF01_AE,CRF07_BC,and CRF08_BC are the three major strains of HIV-infected men≥50 years old newly reported in Guangxi,2020,and the pretreatment drug resistance demonstrates low prevalence.
Male
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Humans
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Middle Aged
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Reverse Transcriptase Inhibitors/therapeutic use*
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HIV Infections/drug therapy*
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Drug Resistance, Viral/genetics*
;
China/epidemiology*
;
Mutation
;
HIV-1/genetics*
;
Protease Inhibitors/therapeutic use*
;
Genotype

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