目的分析江西省赣州市收治的新型冠状病毒肺炎(COVID-19)患者的临床特征、实验室检查、治疗和结局。方法采用病例系列研究设计,纳入2020年1月23日—2月15日赣州市第五人民医院收治的54例COVID-19患者,描述研究对象的一般情况和临床特征...目的分析江西省赣州市收治的新型冠状病毒肺炎(COVID-19)患者的临床特征、实验室检查、治疗和结局。方法采用病例系列研究设计,纳入2020年1月23日—2月15日赣州市第五人民医院收治的54例COVID-19患者,描述研究对象的一般情况和临床特征、实验室检查和影像学特征、并发症、治疗和结局。根据症状天数,将患者分为症状>10 d和≤10 d 2组,对比分析2组患者的上述资料特征。结果54例患者中,入院时以普通型为主(50例);症状>10 d 31例,≤10 d 23例。中位年龄46岁,男女各27例,19例患者合并有高血压、糖尿病等基础疾病。20例患者有2周内武汉暴露史。9组家庭(32例)发生家庭聚集。中位潜伏期7.5 d。首发症状以发热、咳嗽、咳痰为主。54例患者中,14例入院时淋巴细胞减少,46例影像学检查显示肺炎,53例患者接受了抗病毒治疗。53例患者已出院,1例死亡。与症状≤10 d相比,症状>10 d的患者首发症状为咳嗽、咳痰、肌痛/疲劳的占比更高,从发病到首次住院的中位时间更长。结论与武汉早期病例相比,江西赣州COVID-19患者的临床症状和实验室检查等严重程度更轻。展开更多
OBJECTIVE:To investigate effects of the extracts from soothing-liver and invigorating-spleen formulas on the injury due to oxidative stress,mediated by the Nuclear factor-like 2(Nrf2)-Antioxidant response element(ARE)...OBJECTIVE:To investigate effects of the extracts from soothing-liver and invigorating-spleen formulas on the injury due to oxidative stress,mediated by the Nuclear factor-like 2(Nrf2)-Antioxidant response element(ARE) pathway,in the hepatocytes of rats with non-alcoholic fatty liver disease(NAFLD) induced by high-fat diet.METHODS:Soothing-liver and invigorating-spleen formula mixtures were prepared for five groups:normal,model,soothing-liver formula group(SLG),invigorating-spleen formula group(ISG),integrated formula group(IG).The rat model of NAFLD was induced by feeding rats a high-fat diet(HFD).After 16 weeks,the hepatic tissue was examined following Haematoxylin-Eosin(H&E) staining and with Transmission electron microscopy(TEM).Levels of hepatic lipids,serum lipids and hepatic functions were measured using a biochemical analyser.Hepatocytes were isolated from the livers of rats and were identified by cellar immunohistochemistry,cellular immunofluorescence and flow cytometry.The expression levels of Nrf2,Kelch-like epichlorohydrin-associated protein 1(Keap-1),haeme oxygenase-1(HO-1) and NAD(P)H:quinone oxidoreductase 1(NQO1) m RNAs were assessed by real-time fluorescence quantitative PCR.Nrf2,Keap-1,HO-1 and NQO1 proteins were measured by Western blotting.Finally,the levels of oxidative stress factors Superoxide Dismutase(SOD),malonaldehyde(MDA) and Glutathione peroxidase(GSH-Px) in hepatocytes were measured by WST-1,TBA and colorimetry.RESULTS:The H & E and TEM results showed that the NAFLD model rats successfully reproduced typical pathogenetic and histopathological features.The liver function and levels of hepatic lipids and serum lipids from the model rats were dramatically increased.Compared with the model group,the levels of hepatic lipids,serum lipids and hepatic function in the treatment groups were ameliorated to different degrees.The yields of purified hepatocytes in each rat were 4-5 × 108.The viability of the isolated hepatocytes was higher than 95%,with a purity over 93.2%.Cellular immunohistochemistry analysis showed that the hepatocytes were brown,while in the cellular immunofluorescence analysis,the hepatocytes showed green fluorescence.The expression levels of Nrf2,Keap-1,HO-1 and NQO1 m RNA and protein in the hepatocytes were significantly higher in the model group than in the normal group(P < 0.05,P < 0.01).Compared with the model group,the expression of Nrf2,Keap-1,HO-1 and NQO-1 m RNAs and proteins in all treatment groups increased,especially in the IG(P < 0.01).CONCLUSION:The extracts from soothing-liver and invigorating-spleen formulas may protect the liver against the injury induced by oxidative stress in hepatocytes by influencing the Nrf2-ARE pathway,which may be the mechanism having the potential for prevention and treatment of NAFLD.展开更多
文摘目的分析江西省赣州市收治的新型冠状病毒肺炎(COVID-19)患者的临床特征、实验室检查、治疗和结局。方法采用病例系列研究设计,纳入2020年1月23日—2月15日赣州市第五人民医院收治的54例COVID-19患者,描述研究对象的一般情况和临床特征、实验室检查和影像学特征、并发症、治疗和结局。根据症状天数,将患者分为症状>10 d和≤10 d 2组,对比分析2组患者的上述资料特征。结果54例患者中,入院时以普通型为主(50例);症状>10 d 31例,≤10 d 23例。中位年龄46岁,男女各27例,19例患者合并有高血压、糖尿病等基础疾病。20例患者有2周内武汉暴露史。9组家庭(32例)发生家庭聚集。中位潜伏期7.5 d。首发症状以发热、咳嗽、咳痰为主。54例患者中,14例入院时淋巴细胞减少,46例影像学检查显示肺炎,53例患者接受了抗病毒治疗。53例患者已出院,1例死亡。与症状≤10 d相比,症状>10 d的患者首发症状为咳嗽、咳痰、肌痛/疲劳的占比更高,从发病到首次住院的中位时间更长。结论与武汉早期病例相比,江西赣州COVID-19患者的临床症状和实验室检查等严重程度更轻。
基金a grant from National Natural Science Foundation of China:Mechanism of Nrf2/ARE Pathway Mediated by p38 MAPK regulating Oxidative Stress-Related Genes in NAFLD Rats and Effect of Soothing Liver and Invigorating Spleen Recipes(No.81273617)
文摘OBJECTIVE:To investigate effects of the extracts from soothing-liver and invigorating-spleen formulas on the injury due to oxidative stress,mediated by the Nuclear factor-like 2(Nrf2)-Antioxidant response element(ARE) pathway,in the hepatocytes of rats with non-alcoholic fatty liver disease(NAFLD) induced by high-fat diet.METHODS:Soothing-liver and invigorating-spleen formula mixtures were prepared for five groups:normal,model,soothing-liver formula group(SLG),invigorating-spleen formula group(ISG),integrated formula group(IG).The rat model of NAFLD was induced by feeding rats a high-fat diet(HFD).After 16 weeks,the hepatic tissue was examined following Haematoxylin-Eosin(H&E) staining and with Transmission electron microscopy(TEM).Levels of hepatic lipids,serum lipids and hepatic functions were measured using a biochemical analyser.Hepatocytes were isolated from the livers of rats and were identified by cellar immunohistochemistry,cellular immunofluorescence and flow cytometry.The expression levels of Nrf2,Kelch-like epichlorohydrin-associated protein 1(Keap-1),haeme oxygenase-1(HO-1) and NAD(P)H:quinone oxidoreductase 1(NQO1) m RNAs were assessed by real-time fluorescence quantitative PCR.Nrf2,Keap-1,HO-1 and NQO1 proteins were measured by Western blotting.Finally,the levels of oxidative stress factors Superoxide Dismutase(SOD),malonaldehyde(MDA) and Glutathione peroxidase(GSH-Px) in hepatocytes were measured by WST-1,TBA and colorimetry.RESULTS:The H & E and TEM results showed that the NAFLD model rats successfully reproduced typical pathogenetic and histopathological features.The liver function and levels of hepatic lipids and serum lipids from the model rats were dramatically increased.Compared with the model group,the levels of hepatic lipids,serum lipids and hepatic function in the treatment groups were ameliorated to different degrees.The yields of purified hepatocytes in each rat were 4-5 × 108.The viability of the isolated hepatocytes was higher than 95%,with a purity over 93.2%.Cellular immunohistochemistry analysis showed that the hepatocytes were brown,while in the cellular immunofluorescence analysis,the hepatocytes showed green fluorescence.The expression levels of Nrf2,Keap-1,HO-1 and NQO1 m RNA and protein in the hepatocytes were significantly higher in the model group than in the normal group(P < 0.05,P < 0.01).Compared with the model group,the expression of Nrf2,Keap-1,HO-1 and NQO-1 m RNAs and proteins in all treatment groups increased,especially in the IG(P < 0.01).CONCLUSION:The extracts from soothing-liver and invigorating-spleen formulas may protect the liver against the injury induced by oxidative stress in hepatocytes by influencing the Nrf2-ARE pathway,which may be the mechanism having the potential for prevention and treatment of NAFLD.