1.Molecular Mechanism of Programmed Cell Death in Chronic Obstructive Pulmonary Disease and Traditional Chinese Medicine Intervention: A Review
Xin PENG ; Yunhui LI ; Lei LIANG ; Zheyu LUAN ; Hanxiao WANG ; Haotian XU ; Ziming DANG ; Jihong FENG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(3):304-313
Chronic obstructive pulmonary disease (COPD) is a chronic respiratory disease that poses a significant threat to global health, exhibiting high morbidity, disability and mortality rate, with its prevention and treatment situation becoming increasingly critical. The pathogenesis of COPD is complex, and the underlying cellular and molecular biological mechanisms remain incompletely elucidated. Programmed cell death (PCD) is the process wherein cells actively undergo demise to maintain internal environmental stability in response to certain signals or specific stimuli. Contemporary medical research indicates that the dysregulation of PCD patterns such as apoptosis, necroptosis, pyroptosis, autophagy, and ferroptosis is closely related to the onset and progression of COPD. Clarifying the molecular mechanisms of PCD in COPD may provide novel perspectives for in-depth understanding and prevention of the disease. Traditional Chinese medicine (TCM) is characterized by holistic regulation. In recent years, extensive research has been conducted in the TCM field focusing on modulating apoptosis, necroptosis, pyroptosis, autophagy, and ferroptosis for the treatment of COPD, yielding remarkable achievements. Therefore, this study systematically explored the molecular mechanism of PCD in COPD and reviewed the potential mechanisms and intervention status of TCM targeting PCD in COPD, aiming to provide insights and references for the clinical prevention, treatment and in-depth research of COPD.
2.Molecular Mechanism of Programmed Cell Death in Chronic Obstructive Pulmonary Disease and Traditional Chinese Medicine Intervention: A Review
Xin PENG ; Yunhui LI ; Lei LIANG ; Zheyu LUAN ; Hanxiao WANG ; Haotian XU ; Ziming DANG ; Jihong FENG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(3):304-313
Chronic obstructive pulmonary disease (COPD) is a chronic respiratory disease that poses a significant threat to global health, exhibiting high morbidity, disability and mortality rate, with its prevention and treatment situation becoming increasingly critical. The pathogenesis of COPD is complex, and the underlying cellular and molecular biological mechanisms remain incompletely elucidated. Programmed cell death (PCD) is the process wherein cells actively undergo demise to maintain internal environmental stability in response to certain signals or specific stimuli. Contemporary medical research indicates that the dysregulation of PCD patterns such as apoptosis, necroptosis, pyroptosis, autophagy, and ferroptosis is closely related to the onset and progression of COPD. Clarifying the molecular mechanisms of PCD in COPD may provide novel perspectives for in-depth understanding and prevention of the disease. Traditional Chinese medicine (TCM) is characterized by holistic regulation. In recent years, extensive research has been conducted in the TCM field focusing on modulating apoptosis, necroptosis, pyroptosis, autophagy, and ferroptosis for the treatment of COPD, yielding remarkable achievements. Therefore, this study systematically explored the molecular mechanism of PCD in COPD and reviewed the potential mechanisms and intervention status of TCM targeting PCD in COPD, aiming to provide insights and references for the clinical prevention, treatment and in-depth research of COPD.
3.The disease spectrum and laboratory characteristics of HIV and CMV co-infection
Yuan CHEN ; Yunhui LI ; Jing LIANG ; Li WANG ; Renlong ZHU ; Jiayue MA ; Yajie WANG
Chinese Journal of Laboratory Medicine 2025;48(4):498-504
Objective:To investigate the epidemiological characteristics, disease spectrum, and laboratory characteristics of human immunodeficiency virus/cytomegalovirus (HIV/CMV) co-infection, to provide references for clinical diagnosis and treatment.Methods:A cross-sectional study was conducted. Clinical information of 544 HIV/acquired immune deficiency syndrome (AIDS) patients who underwent CMV-DNA tests in Beijing Ditan Hospital in 2023 was collected. Participants were categorized into CMV-infection group (126 cases) and non-CMV-infection group (418 cases). The prevalence of CMV infection was analyzed. Univariate and multivariate logistic regression analysis were performed to identify risk factors for CMV/AIDS co-infection. The disease spectrum, laboratory characteristics, serum CMV-DNA load changes, treatment prognosis and outcomes in the CMV-infected group were evaluated. SPSS 27.0 was used for statistical analysis including the χ 2 test, Mann-Whitney U test, and Kruskal-Wallis H test. Results:The CMV infection rate among HIV/AIDS patients was 23.16% (126/544). Multivariate analysis identified low CD4 +T-lymphocyte count [<50 cells/μl; OR=27.962, 95% confidence interval( CI) 11.957-65.389] and high HIV RNA load (>1×10 5 copies/ml; OR=2.057, 95% CI 1.237-3.420) as independent risk factors for CMV co-infection in HIV/AIDS patients. Among the 126 HIV/CMV co-infected patients, CMV viremia was the most common manifestation (38.10%, 48/126), followed by CMV pneumonia (33.33%, 42/126) and CMV retinitis (11.90%, 15/126), which were mainly observed in patients with CD4 +T-lymphocyte counts <50 cells/μl. Of the patients receiving anti-CMV therapy, 80.70% (46/57) exhibited reduced CMV-DNA loads compared with baseline. Totally 29.82% (17/57) of those patients initiating antiretroviral therapy alone achieved CMV-DNA reduction compared with baseline. Overall, 80.16% (101/126) of patients achieved favorable prognosis. Conclusion:CMV co-infection is high in HIV/AIDS patients. Disease spectrum of HIV/CMV co-infection are dominated by CMV viremia and CMV pneumonia. Timely anti-CMV therapy is pivotal for reducing CMV-DNA loads and improving prognosis.
4.Effects of Dahuang Tangluo Pills on Intestinal Inflammatory Injury in Type 2 Diabetes Rats Based on TLR4/NF-κB Signaling Pathway
Zhongtang LIU ; Yonglin LIANG ; Xiangdong ZHU ; Dong AN ; Yankui GAO ; Min BAI ; Sichen ZHAO ; Yunhui ZHAO ; Xiaoli PEI
Chinese Journal of Information on Traditional Chinese Medicine 2025;32(2):91-98
Objective To explore the effects and mechanism of Dahuang Tangluo Pills on intestinal inflammatory injury in type 2 diabetes mellitus(T2DM)rats based on TLR4/NF-κB signaling pathway.Methods Eight ZDF(fa/+)rats were used as the blank group,and 40 ZDF(fa/fa)rats were fed with high-fat diet and then randomly divided into model group,metformin group(0.18 g/kg metformin)and TCM high-,medium-and low-dosage groups(2.16,1.08,0.54 g/kg Dahuang Tangluo Pills),respectively.The medication groups were gavaged with corresponding dosages for 12 consecutive weeks.The body mass and fasting blood glucose(FBG)of rats before and after intervention were detected.After the intervention,an oral glucose tolerance test(OGTT)was performed,the serum glucose(GLU),glycosylated serum protein(GSP),triglycerides(TG),total cholesterol(TC),low-density lipoprotein cholesterol(LDL-C)and high-density lipoprotein cholesterol(HDL-C)contents were detected.ELISA was used to detect serum fasting insulin(FINS),free fatty acids(FFA)and tumor necrosis factor-α(TNF-α),interleukin(IL)-6,IL-22,lipopolysaccharide(LPS),secreted immunoglobulin A(SIgA)contents in colonic tissue.HE staining was used to observe the morphology of colonic tissue,and Western blot was used to detect the expressions of Toll like receptor 4(TLR4),nuclear factor-κB p65(NF-κB p65),p-NF-κB p65,NF-κB inhibitor α(IκBα),p-IκBα,myeloid differentiation factor 88(MyD88)and zona pellucida protein-1(ZO-1)in colonic tissue.Results Compared with the blank group,the body mass and FBG significantly increased in the model group(P<0.01),blood glucose significantly increased at all time points of OGTT(P<0.01),serum GLU,GSP,TG,TC,LDL-C,FINS,FFA and TNF-α,IL-6,IL-22,LPS contents in colonic tissue significantly increased,serum HDL-C and colonic tissue SIgA contents significantly decreased(P<0.01),with colonic tissue nuclear condensation,cytoplasmic dissolution,inflammatory cell infiltration.The protein expressions of TLR4,NF-κB p65,p-NF-κB p65,p-IκBα and MyD88 in colonic tissue significantly increased,while the protein expressions of IκBα and ZO-1 significantly decreased(P<0.01).Compared with the model group,the body mass and FBG significantly decreased in metformin group,TCM high-and medium-dosage groups(P<0.01),blood glucose decreased at different time points of OGTT,and serum GLU,GSP,TG,TC,LDL-C,FINS,FFA and TNF-α,IL-6,IL-22,LPS contents in colonic tissue significantly decreased,serum HDL-C and colonic tissue SIgA contents significantly increased(P<0.05,P<0.01),with significant improvement in colonic tissue structure and reduction in inflammatory cell infiltration.The protein expressions of TLR4,NF-κB p65,p-NF-κB p65,p-IκBα and MyD88 in colonic tissue significantly decreased,while the proteins expression of IκBα and ZO-1 significantly increased(P<0.05,P<0.01).Conclusion Dahuang Tangluo Pills may inhibit the activation of the TLR4/NF-κB signaling pathway,reduce the release of inflammatory factors,improve intestinal inflammatory injury,restore intestinal homeostasis,thereby improving glucose and lipid metabolism and exerting therapeutic effects on T2DM.
5.Effects of Dahuang Tangluo Pills on Intestinal Inflammatory Injury in Type 2 Diabetes Rats Based on TLR4/NF-κB Signaling Pathway
Zhongtang LIU ; Yonglin LIANG ; Xiangdong ZHU ; Dong AN ; Yankui GAO ; Min BAI ; Sichen ZHAO ; Yunhui ZHAO ; Xiaoli PEI
Chinese Journal of Information on Traditional Chinese Medicine 2025;32(2):91-98
Objective To explore the effects and mechanism of Dahuang Tangluo Pills on intestinal inflammatory injury in type 2 diabetes mellitus(T2DM)rats based on TLR4/NF-κB signaling pathway.Methods Eight ZDF(fa/+)rats were used as the blank group,and 40 ZDF(fa/fa)rats were fed with high-fat diet and then randomly divided into model group,metformin group(0.18 g/kg metformin)and TCM high-,medium-and low-dosage groups(2.16,1.08,0.54 g/kg Dahuang Tangluo Pills),respectively.The medication groups were gavaged with corresponding dosages for 12 consecutive weeks.The body mass and fasting blood glucose(FBG)of rats before and after intervention were detected.After the intervention,an oral glucose tolerance test(OGTT)was performed,the serum glucose(GLU),glycosylated serum protein(GSP),triglycerides(TG),total cholesterol(TC),low-density lipoprotein cholesterol(LDL-C)and high-density lipoprotein cholesterol(HDL-C)contents were detected.ELISA was used to detect serum fasting insulin(FINS),free fatty acids(FFA)and tumor necrosis factor-α(TNF-α),interleukin(IL)-6,IL-22,lipopolysaccharide(LPS),secreted immunoglobulin A(SIgA)contents in colonic tissue.HE staining was used to observe the morphology of colonic tissue,and Western blot was used to detect the expressions of Toll like receptor 4(TLR4),nuclear factor-κB p65(NF-κB p65),p-NF-κB p65,NF-κB inhibitor α(IκBα),p-IκBα,myeloid differentiation factor 88(MyD88)and zona pellucida protein-1(ZO-1)in colonic tissue.Results Compared with the blank group,the body mass and FBG significantly increased in the model group(P<0.01),blood glucose significantly increased at all time points of OGTT(P<0.01),serum GLU,GSP,TG,TC,LDL-C,FINS,FFA and TNF-α,IL-6,IL-22,LPS contents in colonic tissue significantly increased,serum HDL-C and colonic tissue SIgA contents significantly decreased(P<0.01),with colonic tissue nuclear condensation,cytoplasmic dissolution,inflammatory cell infiltration.The protein expressions of TLR4,NF-κB p65,p-NF-κB p65,p-IκBα and MyD88 in colonic tissue significantly increased,while the protein expressions of IκBα and ZO-1 significantly decreased(P<0.01).Compared with the model group,the body mass and FBG significantly decreased in metformin group,TCM high-and medium-dosage groups(P<0.01),blood glucose decreased at different time points of OGTT,and serum GLU,GSP,TG,TC,LDL-C,FINS,FFA and TNF-α,IL-6,IL-22,LPS contents in colonic tissue significantly decreased,serum HDL-C and colonic tissue SIgA contents significantly increased(P<0.05,P<0.01),with significant improvement in colonic tissue structure and reduction in inflammatory cell infiltration.The protein expressions of TLR4,NF-κB p65,p-NF-κB p65,p-IκBα and MyD88 in colonic tissue significantly decreased,while the proteins expression of IκBα and ZO-1 significantly increased(P<0.05,P<0.01).Conclusion Dahuang Tangluo Pills may inhibit the activation of the TLR4/NF-κB signaling pathway,reduce the release of inflammatory factors,improve intestinal inflammatory injury,restore intestinal homeostasis,thereby improving glucose and lipid metabolism and exerting therapeutic effects on T2DM.
6.The disease spectrum and laboratory characteristics of HIV and CMV co-infection
Yuan CHEN ; Yunhui LI ; Jing LIANG ; Li WANG ; Renlong ZHU ; Jiayue MA ; Yajie WANG
Chinese Journal of Laboratory Medicine 2025;48(4):498-504
Objective:To investigate the epidemiological characteristics, disease spectrum, and laboratory characteristics of human immunodeficiency virus/cytomegalovirus (HIV/CMV) co-infection, to provide references for clinical diagnosis and treatment.Methods:A cross-sectional study was conducted. Clinical information of 544 HIV/acquired immune deficiency syndrome (AIDS) patients who underwent CMV-DNA tests in Beijing Ditan Hospital in 2023 was collected. Participants were categorized into CMV-infection group (126 cases) and non-CMV-infection group (418 cases). The prevalence of CMV infection was analyzed. Univariate and multivariate logistic regression analysis were performed to identify risk factors for CMV/AIDS co-infection. The disease spectrum, laboratory characteristics, serum CMV-DNA load changes, treatment prognosis and outcomes in the CMV-infected group were evaluated. SPSS 27.0 was used for statistical analysis including the χ 2 test, Mann-Whitney U test, and Kruskal-Wallis H test. Results:The CMV infection rate among HIV/AIDS patients was 23.16% (126/544). Multivariate analysis identified low CD4 +T-lymphocyte count [<50 cells/μl; OR=27.962, 95% confidence interval( CI) 11.957-65.389] and high HIV RNA load (>1×10 5 copies/ml; OR=2.057, 95% CI 1.237-3.420) as independent risk factors for CMV co-infection in HIV/AIDS patients. Among the 126 HIV/CMV co-infected patients, CMV viremia was the most common manifestation (38.10%, 48/126), followed by CMV pneumonia (33.33%, 42/126) and CMV retinitis (11.90%, 15/126), which were mainly observed in patients with CD4 +T-lymphocyte counts <50 cells/μl. Of the patients receiving anti-CMV therapy, 80.70% (46/57) exhibited reduced CMV-DNA loads compared with baseline. Totally 29.82% (17/57) of those patients initiating antiretroviral therapy alone achieved CMV-DNA reduction compared with baseline. Overall, 80.16% (101/126) of patients achieved favorable prognosis. Conclusion:CMV co-infection is high in HIV/AIDS patients. Disease spectrum of HIV/CMV co-infection are dominated by CMV viremia and CMV pneumonia. Timely anti-CMV therapy is pivotal for reducing CMV-DNA loads and improving prognosis.
7.Mechanism of Dahuang Tangluo Pills in Improving Renal Inflammatory Injury in Diabetic Kidkdey Disease by Regulating AGEs/RAGE/IKK/NF-κB Pathway
Pu ZHANG ; Jianqing LIANG ; Xia YANG ; Min BAI ; Xiangdong ZHU ; Chunxia XUE ; Beibei SU ; Yunhui ZHAO
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(20):77-85
ObjectiveTo explore the protective effects of Dahuang Tangluo pills on early diabetic kidkdey disease (DKD) in db/db mice. MethodEight db/m mice were selected as the control group. Forty male db/db mice were selected and blood samples were collected via tail vein to measure fasting blood glucose (FBG). Mice with FBG ≥ 16.7 mmol·L-1, increased urine output, and persistent albuminuria were considered successful in model establishment. After successful modeling, they were randomly divided into a model group, a dapagliflozin group (1.5 mg·kg-1·d-1), and high, medium, and low dose groups of Dahuang Tangluo pills (3.6, 1.8, 0.9 g·kg-1·d-1, respectively), with eight mice in each group. All medication groups were administered orally, while the control and model groups were given an equal amount of distilled water by gavage daily. After continuous administration for 10 weeks, the survival status of the mice was observed, and their body weight, FBG, and kidney function-related indicators were measured. Inflammatory indicators in renal tissues were determined by enzyme-linked immunosorbent assay (ELISA). Hematoxylin-eosin (HE) staining, Masson staining, and electron microscopy were used to observe the pathological changes in renal tissues in each group. Immunofluorescence was employed to examine the expression of advanced glycation end products (AGEs) and receptors for advanced glycation end products (RAGE) proteins. Real-time quantitative polymerase chain reaction (Real-time PCR) and Western blot were utilized to detect the gene and protein expression levels of AGEs, RAGE, inhibitor of nuclear factor-κB (NF-κB) kinase (IKK), and NF-κB in the renal tissues of mice in each group. ResultCompared with control group, the model group showed a significant increase in body weight, FBG, serum creatinine (SCr), urinary microalbumin/urine creatinine ratio (ACR), total cholesterol (TC), and triglycerides (TG) (P<0.05). The levels of intercellular adhesion molecule-1 (ICAM-1), interleukin-6 (IL-6), and tumor necrosis factor-alpha (TNF-α) in renal tissues were significantly elevated (P<0.05). Renal histopathological staining and electron microscopy revealed loose arrangement, gaps, structural disarray, mesangial proliferation, and significant fibrosis in renal tissues. Real-time PCR results showed a significant increase in the expression of RAGE, IKK, and NF-κB genes in renal tissues (P<0.05). Immunofluorescence results demonstrated a significant increase in the expression of AGEs and RAGE proteins in renal tissues (P<0.05). Western blot results showed a significant increase in the expression of AGEs, RAGE, IKK, and NF-κB proteins in renal tissues (P<0.05). After drug intervention, compared with model group, the dapagliflozin group and the high-dose Dahuang Tangluo pills group showed significant reductions in body weight, FBG, SCr, and ACR (P<0.05), and a significant decrease in TC in mouse serum (P<0.05), while the high-dose Dahuang Tangluo pills group showed a significant decrease in TG in mouse serum (P<0.05). All treatment groups showed a significant reduction in ICAM-1, IL-6, and TNF-α in renal tissues (P<0.05). Renal histopathological staining and electron microscopy showed improved kidney injury, decreased collagen fiber deposition, and reduced mesangial proliferation in all treatment groups. Real-time PCR results showed a significant decrease in the expression of RAGE, IKK, and NF-κB genes in the dapagliflozin group and the high- and medium-dose Dahuang Tangluo pills groups (P<0.05). Immunofluorescence results demonstrated a significant decrease in the expression of AGEs and RAGE proteins in the dapagliflozin group and the high- and medium-dose Dahuang Tangluo pills groups (P<0.05). Western blot results showed a significant decrease in the expression of AGEs, RAGE, IKK, and NF-κB proteins in the dapagliflozin group and the high- and medium-dose Dahuang Tangluo pills groups (P<0.05). ConclusionDahuang Tangluo pills can improve the pathological structure of the kidneys and reduce renal inflammation in DKD mice, possibly through inhibiting the AGEs/RAGE/IKK/NF-κB pathway.
8.Strategies and advances in laboratory tests for primary liver cancer
Yuan CHEN ; Jing LIANG ; Yunhui LI ; Yajie WANG
Chinese Journal of Preventive Medicine 2024;58(1):128-135
Primary liver cancer is one of the leading causes of cancer-related deaths worldwide, its early diagnosis and early treatment are of great clinical importance. The main detection tools for liver cancer include serological indicators, imaging tests and risk assessment models. With the advancement of technology and research, the sensitivity and specificity of laboratory tests for liver cancer have been substantially improved, but there are still false negatives and low rates of early diagnosis. For different causes and prevalence regions, each country has developed its clinical practice guidelines to guide risk groups for effective prevention, early diagnosis and standardized treatment. It is important to establish a liver cancer diagnosis strategy that is suitable for China′s national conditions, concerning the guidelines for the vigilance and prevention of liver cancer. In this article, the advantages and disadvantages of liver cancer-related tests and the impact of future development trends on laboratory strategies are explained from the perspective of laboratory testing strategies, to provide theoretical support for the practical application of liver cancer diagnostic strategies.
9.Activation of Nrf2/HO-1/NQO1 Signaling Pathway by Shenqi Tangluo Pill Improves Oxidative Stress Injury of Skeletal Muscle of Type 2 Diabetes Mellitus Mice
Xiaoli PEI ; Yonglin LIANG ; ⁎ ; Yongqiang DUAN ; ⁎ ; Xiangdong ZHU ; Bing SONG ; Min BAI ; Yunhui ZHAO ; Sichen ZHAO
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(7):131-139
ObjectiveTo investigate the effect and mechanism of Shenqi Tangluo pill (SQTLP) on oxidative stress injury of skeletal muscle of type 2 diabetes mellitus (T2DM) mice based on nuclear factor erythroid 2-related factor 2 (Nrf2)/heme oxygenase-1 (HO-1)/NAD(P)H quinone oxidoreductase 1 (NQO1) pathway. MethodA total of 60 7-week-old male db/db mice [specific pathogen-free (SPF) grade] were selected and fed for one week for adaption. They were divided into the model control group, SQTLP low-, medium- and high-dose (19, 38, and 76 g·kg-1) groups and metformin group (0.26 g·kg-1) by gavage. Each group consisted of 12 mice. Twelve male db/m mice of the same age were selected as the blank group. The intervention was implemented continuously for 8 weeks. Fasting blood glucose (FBG) was detected. Fasting serum insulin (FINS) levels were detected by enzyme-linked immunosorbent assay (ELISA), and the homeostasis model assessment-insulin resistance (HOMA-IR) index and the homeostasis model assessment-insulin sensitivity index (HOMA-ISI) were calculated. Oral glucose tolerance test (OGTT) and insulin tolerance test (ITT) were conducted. The activities of superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) and the contents of malondialdehyde (MDA) and reduced nicotinamide adenine dinucleotide phosphate (NADPH) in skeletal muscle tissues were detected by biochemical kits. Hematoxylin-eosin (HE) staining was used to observe the pathological changes in skeletal muscle tissues. The levels of reactive oxygen species (ROS) and 4-hydroxynonenal (4-HNE) in skeletal muscle tissue were detected by immunofluorescence (IF). The expression levels of Nrf2, HO-1, NQO1 and glutamate-cysteine ligase catalytic subunit (GCLC) proteins in skeletal muscle tissues were detected by Western blot. ResultCompared with those in the blank group, FBG, FINS and HOMA-IR in the model group were significantly increased (P<0.05), while HOMA-ISI was decreased (P<0.05). The results of OGTT and ITT showed that blood glucose was significantly increased at all time points (P<0.05), and glucose tolerance and insulin tolerance were significantly impaired. SOD and GSH-Px activities in skeletal muscle tissues were significantly decreased (P<0.05), and MDA and NADPH contents were significantly increased (P<0.05). In skeletal muscle tissues, the arrangement of muscle fibers was loose, the nucleus was disordered, and inflammatory cells were infiltrated. The expression levels of ROS and 4-HNE in skeletal muscle tissues were significantly increased (P<0.05). The protein expression levels of Nrf2, HO-1, NQO1 and GCLC in skeletal muscle tissues were significantly decreased (P<0.05). Compared with those in the model group, FBG, FINS and HOMA-IR in the metformin group were significantly decreased (P<0.05), while HOMA-ISI was increased (P<0.05). The results of OGTT and ITT showed that blood glucose in the metformin group was significantly decreased at all time points (P<0.05). The activities of SOD and GSH-Px in skeletal muscle tissues were significantly increased (P<0.05), while the contents of MDA and NADPH were significantly decreased (P<0.05). No obvious abnormality was found in the skeletal muscle tissue of the metformin group. The expressions of ROS and 4-HNE in skeletal muscle tissues were decreased (P<0.05). The protein expression levels of Nrf2, HO-1, NQO1 and GCLC in skeletal muscle tissues were significantly increased (P<0.05). Compared with those in the model group, FBG, FINS and HOMA-IR in the SQTLP medium- and high-dose groups were significantly decreased (P<0.05), while HOMA-ISI was increased (P<0.05). The results of OGTT and ITT showed that the glucose tolerance and insulin tolerance of mice were improved in each dose group of SQTLP. The GSH-Px activity in the SQTLP low-dose group was significantly increased (P<0.05), and the NADPH content was decreased (P<0.05). The activities of SOD and GSH-Px in the SQTLP medium- and high-dose groups were significantly increased (P<0.05), while the contents of MDA and NADPH were significantly decreased (P<0.05). The skeletal muscle tissue injury of mice in each dose group of SQTLP was ameliorated to different degrees. In the SQTLP medium- and high-dose groups, the expressions of ROS and 4-HNE were decreased (P<0.05), and the protein expression levels of Nrf2, HO-1, NQO1 and GCLC were significantly increased (P<0.05). Compared with those in the SQTLP low-dose group, FBG and HOMA-IR in the SQTLP high-dose group were significantly decreased (P<0.05), while HOMA-ISI was increased (P<0.05). The results of OGTT and ITT showed that the SQTLP high-dose group significantly improved the glucose tolerance and insulin tolerance of mice. The activities of SOD and GSH-Px in skeletal muscle tissues were significantly increased (P<0.05), while the contents of MDA and NADPH were significantly decreased (P<0.05). No obvious abnormality was found in the skeletal muscle tissue, the expressions of ROS and 4-HNE were decreased (P<0.05), and the protein expression levels of Nrf2, HO-1, NQO1 and GCLC were significantly increased (P<0.05) in the skeletal muscle tissue of the SQTLP high-dose group. ConclusionSQTLP can significantly improve IR in T2DM mice, and the mechanism is related to SQTLP activating the Nrf2/HO-1/NQO1 signaling pathway, promoting the expression of antioxidant enzymes, and thus improving the oxidative stress injury in the skeletal muscle.
10.Incidence and recovery of nonalcoholic fatty liver disease among residents aged 65 years old and above in Xinqiao Town, Songjiang District, Shanghai
Xinxing LIANG ; Jinghong PENG ; Yiling WU ; Genming ZHAO ; Yonggen JIANG ; Yunhui WANG ; Xing LIU
Shanghai Journal of Preventive Medicine 2024;36(8):793-801
ObjectiveTo analyze the incidence, recovery rate and associated factors of nonalcoholic fatty liver disease (NAFLD) among residents aged 65 years old and above in Xinqiao Community of Songjiang, Shanghai, and to provide basic data for further efficient community management. MethodsData of annual geriatric physical examination program for residents aged 65 and above were collected in Xinqiao Community, Songjiang from 2016 to 2022. Those residents who participated twice or more were included in this analysis. Data were collated into longitudinal form. For each participant, data of the first physical examination was used as baseline, and each subsequent examination was taken as follow-up. Incidence and recovery rate of NAFLD were calculated. Cox proportional hazard models were used to explore the associated factors and their changes with the onset and recovery of NAFLD. ResultsDuring the study period, a total of 11 983 residents participated in physical examinations, of which 8 644 participated twice or more, and 8 154 had no history of excessive alcohol consumption. B-ultrasound showed that there were 5 267 residents without NAFLD and 2 887 with NAFLD at baseline. After a median follow-up of 3.3 years, the incidence density of NAFLD in this population was estimated to be 11.5 per 100 person-years, and the recovery density was 23.4 per 100 person-years. The incidence density of NAFLD was negatively associated with age, and positively associated with baseline BMI, abdominal obesity, high fasting blood glucose, and high triglycerides. The recovery density was negatively associated with baseline BMI and abdominal obesity. Compared with those with normal BMI at both baseline and follow-up, those with persistent obesity showed the highest risk of NAFLD (males: HR: 3.19, 95%CI: 2.16-4.70; females: HR: 3.34, 95%CI: 2.46-4.54) and the lowest potential of recovery (males: HR: 0.58, 95%CI: 0.42-0.82; females: HR: 0.58, 95%CI: 0.44-0.77). Persistently high triglycerides were also associated with a higher risk of developing the disease. ConclusionResidents aged 65 years old and above in Xinqiao, Shanghai had a higher incidence and recovery rate of NAFLD. Women, being obese and having hyperlipidemia are at a higher risk for the development and persistence of NAFLD.

Result Analysis
Print
Save
E-mail