1.Mechanism of 1,25(OH)2D3 improving liver inflammation in a rat model of nonalcoholic steatohepatitis induced by choline-deficient L-amino acid-defined diet
Haiyang ZHU ; Jingshu CUI ; Liu YANG ; Mengting ZHOU ; Jian TONG ; Hongmei HAN
Journal of Clinical Hepatology 2025;41(2):254-262
ObjectiveTo investigate the effect of 1,25(OH)2D3 on the level of peroxisome proliferator-activated receptor-γ (PPAR-γ) in the liver, the phenotype of hepatic macrophages, and liver inflammation in a rat model of nonalcoholic steatohepatitis (NASH), as well as the mechanism of 1,25(OH)2D3 improving liver inflammation. MethodsAfter 1 week of adaptive feeding, 24 specific pathogen-free Wistar rats were randomly divided into normal group [choline-supplemented L-amino acid-defined (CSAA) diet], normal+1,25(OH)2D3 group [CSAA diet+1,25(OH)2D3], model group [choline-deficient L-amino acid-defined diet (CDAA) diet], and model+1,25(OH)2D3 group [CDAA diet+1,25(OH)2D3], with 6 rats in each group. The dose of 1,25(OH)2D3 was 5 μg/kg for intraperitoneal injection twice a week for 12 weeks. The serum levels of aspartate aminotransferase (AST) and alanine aminotransferase (ALT) were measured, liver histopathology was observed, and SAF score was assessed. M1 hepatic macrophages and M2 hepatic macrophages were measured to analyze in the change in the phenotype of hepatic macrophages, and ELISA was used to measure the levels of tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), interleukin-4 (IL-4), and interleukin-10 (IL-10) in liver tissue, and qPCR was used to measure the mRNA level of PPAR-γ. The two-factor analysis of variance was use for comparison between groups, and the least significant difference t-test was used for further comparison; the Pearson method was used for correlation analysis. ResultsCompared with the normal group, the model rats with CDAA diet-induced NASH had significant increases in the serum levels of AST and ALT (P=0.019 and P<0.001), the SAF score of liver histopathology (P<0.001), the level of M1 hepatic macrophages (P<0.001), and the ratio of M1 and M2 hepatic macrophages (P<0.001), as well as a significant increase in the level of TNF-α (P<0.001) and a significant reduction in the level of IL-4 in liver tissue (P=0.025). The 1,25(OH)2D3 group had significant reductions in the serum levels of ALT (P<0.001), the SAF score of liver histopathology (P<0.001), the level of M1 hepatic macrophages (P<0.001), and the ratio of M1 and M2 hepatic macrophages (P=0.001), the level of IL-1β (P<0.001) and a significant increase in the level of M2 hepatic macrophages (P=0.017), the level of IL-10 (P=0.039), the level of IL-4 (P<0.001), the level of PPAR-γ (P=0.016). There were significant interactions between CDAA diet-induced NASH model and 1,25(OH)2D3 in serum the levels of AST and ALT (P=0.007 and P=0.008), the SAF scores of liver histopathology (P<0.001), the level of M1 hepatic macrophages (P<0.001), the level of M2 hepatic macrophages (P=0.008), the ratio of M1 and M2 of hepatic macrophages (P=0.005), the level of TNF-α (P<0.001), the level of IL-10 (P=0.038), the level of IL-4 (P<0.001) and the level of PPAR-γ (P=0.009). The correlation analysis showed that PPAR-γ was negatively correlated with the ratio of M1 and M2 hepatic macrophages (r=-0.415, P=0.044) and was positively correlated with M2 hepatic macrophages (r=0.435, P=0.033), IL-10 (r=0.433, P=0.035), and IL-4 (r=0.532, P=0.007). ConclusionThis study shows that 1,25(OH)2D3 improves liver inflammation in NASH by activating PPAR-γ to regulate the phenotypic transformation of hepatic macrophages.
2.Mediating effect of social capital between health distress and depression and anxiety among the middle-aged and elderly hearing-impaired people in Shanghai
Mengting LIU ; Jingfeng ZHOU ; Jiwei WANG ; Xiaomin WEI
Shanghai Journal of Preventive Medicine 2024;36(9):907-913
ObjectiveTo investigate the effects of health distress on depression and anxiety among the middle-aged and elderly hearing-impaired people, and to explore the mediating effect of social capital, so as to provide an evidence for the implementation of appropriate interventions. MethodsA face-to-face self-designed questionnaire survey was conducted on 271 middle-aged and elderly hearing-impaired people aged 50 years and above in Shanghai from September 2021 to February 2022, including the general information of the subjects, social capital scale, hospital anxiety and depression scale, and health distress scale. The higher the total scores of the social capital scale, the higher level of social capital. Higher scores on the hospital anxiety and depression scale indicate more severe anxiety and depression, and scores >7 points were used to define an anxiety or depression status. The higher scores of the health distress scale, the worse the health condition of the respondents. Univariate and multivariate linear regression models were used to investigate the effects of health distress on depression and anxiety, and the mediating effects were used to test the mediating role of social capital between health distress and depression and anxiety. ResultsThe mean scores of depression, anxiety, social capital and health distress among the middle-aged and elderly hearing-impaired people aged 50 years and above were (11.063±5.892), (58.391±15.273) and (6.384±4.787) points, respectively. Health distress scores were positively correlated with social capital scores, health distress was positively correlated with depression and anxiety, while social capital was negatively correlated with depression and anxiety (all P<0.05). Social capital had masking effects on the relationship between health distress, depression and anxiety (all P<0.05), which accounted for 24.11% and 18.93% in the effects of depression and anxiety, respectively. ConclusionThe levels of depression and anxiety are higher among the middle-aged and elderly hearing-impaired people aged 50 years and above, and health distress can affect the levels of depression and anxiety through social capital. Health workers should take measures to reduce health distress and improve social capital among the middle-aged and elderly hearing-impaired people, so as to further alleviate the occurrence and development of depression and anxiety.
3.Eating Raw Snails Infected with Angiostrongylus Cantonensis Causes Eosinophilic Meningitis: A Case Report
Mengting HU ; Dong ZHANG ; Peiyao JIA ; Minya LU ; Menglan ZHOU ; Jiayu GUO ; Huiting SU ; Yi GAO ; Jingyuan XI ; Huadong ZHU ; Qiwen YANG
Medical Journal of Peking Union Medical College Hospital 2024;15(6):1463-1467
We report a case of a male patient who developed persistent fever and central nervous system symptoms after eating raw snails for 10 days. The patient was diagnosed with Angiostrongyliasis depended on the clinical presentation, epidemiological history, and etiological results. The patient recovered after receiving albendazole anthelmintic and dexamethasone anti-inflammatory therapy. This article incorporates literature review to sort out the diagnosis and treatment of this patient, in order to provide feasible reference for clinicians.
4.Eating Raw Snails Infected with Angiostrongylus Cantonensis Causes Eosinophilic Meningitis: A Case Report
Mengting HU ; Dong ZHANG ; Peiyao JIA ; Minya LU ; Menglan ZHOU ; Jiayu GUO ; Huiting SU ; Yi GAO ; Jingyuan XI ; Huadong ZHU ; Qiwen YANG
Medical Journal of Peking Union Medical College Hospital 2024;15(6):1463-1467
We report a case of a male patient who developed persistent fever and central nervous system symptoms after eating raw snails for 10 days. The patient was diagnosed with Angiostrongyliasis depended on the clinical presentation, epidemiological history, and etiological results. The patient recovered after receiving albendazole anthelmintic and dexamethasone anti-inflammatory therapy. This article incorporates literature review to sort out the diagnosis and treatment of this patient, in order to provide feasible reference for clinicians.
5.The role and mechanism of palmitoleic acid in the pyroptosis of cardiomyocytes after hypoxia/reoxygenation-induced injury
Yunquan LI ; Zonggang DUAN ; Hailong BAO ; Qingteng WANG ; Hongxin AN ; Luanda XIAHOU ; Xu WANG ; Mengting JIANG ; Haiyan ZHOU ; Zhenhua LUO ; Wei LI
Acta Universitatis Medicinalis Anhui 2024;59(6):1006-1012
Objective To investigate the effect of palmitoleic acid(POA)on pyroptosis of cardiomyocytes after hy-poxia/reoxygenation-induced injury in the human myocardium.Methods The experiment comprised a control group(Control,normal culture),a hypoxia/reoxygenation group(HR),a palmitoleic acid-treated group(HR+POA),and an anhydrous ethanol control group(HR+ET).Cardiomyocytes viability was assessed using CCK-8 assay,and the level of pyroptosis of cardiomyocytes was measured through the double staining with Hoechst33342/PI and LDH assay.ELISA was employed to detect the release of inflammatory factors IL-1 β and IL-18 in the cell culture supernatant.qRT-PCR and Western blot were utilized to determine the relative expression levels of mRNA and protein of pyroptosis-related genes,namely NLRP3,ASC,Caspase-1,GSDMD,IL-1 β and IL-18,respective-ly.Results CCK-8 assay showed that the survival of hypoxic/reoxygenated cardiomyocytes increased with the ad-dition of POA at concentrations ranging from 25 to 100 μmol/L,as compared to the HR group;a hypoxia/reoxy-genation model of cardiomyocyte was established.The expression of protein and mRNA increased in NLRP3,ASC,Cleaved caspase-1,GSDMD-N,IL-Iβ and IL-18 vs the control group(P<0.05),the positive percentage of Ho-echst33342/PI staining in cardiomyocytes increased significantly(P<0.05),the release of LDH,IL-Iβ,and IL-18 increased(P<0.05).After intervention with 100 μmol/L POA,the protein and mRNA expression levels of NLRP3,ASC,Cleaved caspase-1,GSDMD-N,IL-Iβ,and IL-18 were significantly reduced in the HR+POA group vs HR+ET group(P<0.05).The positive percentage of Hoechst33342/PI staining in cardiomyocytes de-creased significantly,and the levels of LDH,IL-Iβ and IL-18 significantly decreased(P<0.05).Conclusion Palmitoleic acid may alleviate hypoxia/reoxygenation-induced injury of cardiomyocytes by inhibiting pyroptosis and inflammatory response after hypoxia/reoxygenation in human myocardium.
6.Growth rate of adult obesity prevalence in China and target population for prevention and control from 2013 to 2018
Zhenping ZHAO ; Mei ZHANG ; Chun LI ; Mengting YU ; Xiao ZHANG ; Limin WANG ; Maigeng ZHOU
Chinese Journal of Cardiology 2024;52(1):34-41
Objective:To investigate the annual growth rate of obesity prevalence of residents aged 18 and above in China and prevention keypoints for target populations from 2013 to 2018.Methods:This was a cross-sectional study. Subjects from China Chronic Disease and Risk Factor Surveillance project in 2013 and 2018 were included. The prevalence of obesity and growth rate in 31 provinces (autonomous regions and municipalities) in China were collected through survey questionnaires and on-site measurements. Other demographic data such as the proportion of obesity control measures, diet, exercise and drug use was also analyzed. Obesity among adults was defined as body mass index≥28.0 kg/m2.Results:A total of 174 736 residents, aged (51.5±14.2) years, which included 74 704 (42.8%) males were recruited in 2013, and 179 125 residents, aged (55.1±13.8) years, which included 79 337 (44.3%) males were included in 2018. The average annual increase rate of adult obesity prevalence in China from 2013 to 2018 was 3.2% (uncertainty interval ( UI) 2.7%-3.6%), and the average increase rate of obesity prevalence among men (5.2% ( UI 4.6%-5.9%)) was higher than that of women (0.9% ( UI 0.5%-1.3%)). For subgroups analysis, the average increase rate of obesity prevalence among residents aged 18 to 29 (7.4% ( UI 6.9%-7.9%)), education level beyond college degree (6.3% ( UI 5.5%-7.1%)), and unmarried population (11.2% ( UI 10.2%-12.1%)) were higher than that of other subgroups between 2013 and 2018. The residents in Hainan province showed the highest average annual growth rate of obesity. With the exception of Shanxi, Hunan, Gansu and Ningxia province, the annual growth rate of obesity prevalence among adults increased in all other provinces (autonomous regions and municipalities) from 2013 to 2018. For the obese population, the proportion of people who took weight control measures increased from 22.6% in 2013 to 32.7% in 2018. Conclusions:The prevalence of obesity growth characteristics in subpopulations and regions in China are obviously different. Accordingly the focus points of obesity prevention and control in different regions should have their own emphasis.
7.Dual-Energy CT for Diagnosis of Left Atrial Appendage Thrombosis in Patients with Atrial Fibrillation
Junya ZHAO ; Mengting CHEN ; Xuhui ZHOU ; Taihui YU
Journal of Sun Yat-sen University(Medical Sciences) 2024;45(5):745-754
[Objective]To explore the diagnostic value of dual-energy computed tomography(DECT)for left atrial appendage thrombosis/spontaneous echocardiographic contrast(LAAT/SEC).[Methods]A retrospective analysis was done on 64 non-valvular atrial fibrillation patients who planned to undergo radiofrequency ablation between November 2020 and November 2021.All patients underwent DECT and transesophageal echocardiography(TEE),and then were divided into LAAT/SEC group and non-LAAT/SEC group based on the TEE results.The clinical data and imaging parameters of the two groups were compared and analyzed.Univariate and multivariate logistic regression analyses were performed to determine the independent risk factors for LAAT/SEC,and a prediction model was constructed.[Results]A total of 64 patients with atrial fibrillation were enrolled in this study,including 42 non-LAAT/SEC patients and 22 LAAT/SEC patients.There was no statistically significant difference in gender and body mass index(BMI)between the two groups(P>0.05).CHA2DS2-VASc score and left atrial diameter were higher in the LAAT/SEC group than in the non-LAAT/SEC group(P=0.047;P<0.001).Significant differences(P<0.001)were observed in the ratio of Hounsfield unit of LAA and ascending aorta(LAA/AA HU ratio)at the first phase of DECT and quantitative parameters such as Zeff,Rho,λHu,and nIC.Multivariate logistic regression showed that Zeff and Rho were the independent factors for the diagnosis of LAAT/SEC.A Zeff-Rho based model predicting LAAT/SEC was subsequently developed,with Area Under the Curve(AUC)of 0.96(95%CI:0.92,1.00)and the accuracy of 0.92(95%CI:0.83,0.97).[Conclusions]The two quantitative parameters Zeff and Rho are independent risk factors for the diagnosis of LAAT/SEC.The DECT derived Zeff and Rho may have better diagnostic performance than single parameter and conventional CT in detecting LAAT/SEC.
8.Effect of modified toe-spread-out exercises in female patients with hallux valgus
Lianfu DIAO ; Zhicheng ZHOU ; Mengting LIU ; Liang ZHANG ; Zhongqi YU ; Yao YU ; Chao WANG
Chinese Journal of Rehabilitation Theory and Practice 2024;30(12):1473-1478
ObjectiveTo compare the effect of toe-spread-out exercises (TSO) and modified TSO in females with hallux valgus. MethodsFrom September to December, 2023, a total of 45 females with hallux valgus were recruited in Capital University of Physical Education and Sports and randomly divided into blank control group (n = 15), TSO group (n = 15), and modified TSO group (n = 15). The blank control group received no intervention, the TSO group received routine TSO, and the modified TSO group received fibularis longus fascia release followed by TSO, for eight weeks. Changes in the hallux valgus angle (HVA) and the cross-sectional area (CSA) of the abductor hallucis muscle were measured before intervention, and four and eight weeks after intervention, respectively. ResultsOne case dropped out from the blank control group. The changes of HVA in the TSO and modified TSO groups were significantly greater than in the blank control group (F > 15.263, P < 0.05). After four weeks of intervention, the change of left HVA in the modified TSO group was significantly greater than in the TSO group (P < 0.05). The main effect of time was significant on the CSA of the abductor hallucis muscle (F > 13.245, P < 0.05). The main effect of group was significant on the left foot's CSA of the abductor hallucis (F = 3.798, P < 0.05). The interaction effect of time and group was also significant (F > 4.744, P < 0.05). The CSA of the abductor hallucis in both the TSO and modified TSO groups after four weeks and eight weeks of intervention was significantly greater than before intervention (P < 0.05). At eight weeks, the CSA of the right foot in the modified TSO group was significantly greater than in the blank control group (P < 0.05). ConclusionBoth TSO and modified TSO can improve HVA and the CSA of the abductor hallucis muscle in females with hallux valgus, and modified TSO is better.
9.Foreign research status of prevention of children s sexual assault from the perspective of perpetrators
ZHOU Shengyi, JIANG Mengting, CHEN Yue, ZHENG Qingling
Chinese Journal of School Health 2024;45(2):291-295
Abstract
In recent years, the research perspective of the prevention and intervention of children s sexual assault abroad has expanded from the victim s perspective of children s self protection education and post mortem remedy to the screening and intervention education of perpetrators in advance, so as to implement the primary prevention of children s sexual assault from the source. The article will summarize the current situation of foreign research on child sexual assault prevention from the perspective of perpetrators, including the target population, prevention practice and forms, so as to provide a reference for the primary prevention of child sexual assault from the perspective of perpetrators in China.
10.Research Progress on the Role of HCN Channels in Auditory Pathway
Xinying GE ; Mo ZHOU ; Jinfeng LIU ; Jinsheng DAI ; Jingjing YUAN ; Mengting LIU ; Juan ZHANG ; Ningyu WANG
Journal of Audiology and Speech Pathology 2024;32(4):364-368
Hyperpolarization-activated cyclic nucleotide-gated(HCN)channels are widely expressed in the central and peripheral nervous systems.They can generate hyperpolarization-activated current(Ih)that regulates the resting membrane potential and excitability of neurons.Furthermore,it can affect the precise processing and con-duction of hearing,which plays a crucial role in the accurate analysis of temporal information.Therefore,through the review of HCN channel structure and distribution,as well as electrophysiological effects,the role and mecha-nism of HCN channels in the auditory pathways of the normal and unilateral or bilateral deafness patients will be fur-ther investigated.


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