1.Luteolin inhibits Ang Ⅱ-induced cardiomyocyte hypertrophy in H9c2 cells through Nrf2/HO-1 pathway
International Journal of Biomedical Engineering 2025;48(2):158-164
Objective:To investigate the effect of luteolin on angiotensin Ⅱ (Ang Ⅱ)-induced cardiomyocyte hypertrophy in H9c2 cells and to reveal its potential mechanism.Methods:After H9c2 cells were cultured, they were divided into 0, 1, 2 and 4 μmol/L luteolin groups according to different cell treatment conditions. H9c2 cells were stimulated by Ang II to establish a cardiomyocyte hypertrophy model, which was divided into control group, Ang II group and luteolin+Ang II group. Cell survival rates were assessed by cell counting kit-8 assay. The degrees of cell hypertrophy were assessed by phalloidin staining assay. The levels of cellular oxidative stress were assessed by the 2′,7′-dichlorodihydrofluorescein diacetate fluorescent probe assay and thiobarbituric acid assay. The expression of apoptotic protein B-cell lymphoma-2 associated X protein (Bax), cleaved cysteine aspartic acid specific protease-3 (cleaved Caspase-3) and nuclear factor-erythroid 2-related factor 2 (Nrf2)/heme oxygenase-1 (HO-1) pathway proteins were assessed by Western blotting. The datas were analyzed by t test and one-way analysis of variance. Results:The survival rates of H9c2 cells in the 0, 1, 2, and 4 μmol/L luteolin group were 97.31%, 95.65%, 94.64%, and 93.27%, respectively. The degree of hypertrophy and the fluorescence intensity of H9c2 cells in Ang Ⅱ group were higher than those in the control group. The degree of hypertrophy and the fluorescence intensity of H9c2 cells in the luteolin+Ang Ⅱ group were lower than those in the Ang Ⅱ group. Compared with the control group, the survival rate of H9c2 cells in Ang Ⅱ group was decreased (96.26% vs 51.68%, P<0.01), the level of malondialdehyde was increased [(1.00±0.08) nmol/mg vs (3.27±0.31) nmol/mg, P<0.01], and the relative expression levels of Bax (0.79±0.04 vs 1.55±0.09, P<0.01), cleaved Caspase-3 (0.11±0.02 vs 1.00±0.04, P<0.01), Nrf2 (0.77±0.04 vs 0.95±0.03, P<0.05), and HO-1 (0.12±0.04 vs 0.41±0.05, P<0.01) were all increased. Compared with Ang Ⅱ group, the survival rate of H9c2 cells in the luteolin+Ang Ⅱ group (81.52%) was increased ( P<0.01), the level of malondialdehyde [(1.73±0.21) nmol/mg] was decreased ( P<0.01), the relative expression levels of Bax (1.25±0.05) and cleaved Caspase-3 (0.48±0.07) were decreased ( P<0.05, 0.01), Nrf2 (1.24±0.13) and HO-1 (0.82±0.03) were increased (both P<0.01). Conclusions:Luteolin effectively inhibits Ang Ⅱ-induced cardiomyocyte hypertrophy through the Nrf2/HO-1 pathway and has potential therapeutic value.
2.Progress in apllication of machine learning evaluation and prediction models in cardiovascular disease
International Journal of Biomedical Engineering 2024;47(1):86-92
Artificial intelligence has been a huge success and contributes to the workplace. In the digital era, the amount of data in clinical practice is increasing, which requires healthcare workers to integrate and interpret the various information generated during clinical work. With the help of artificial intelligence techniques, especially machine learning techniques, researchers in cardiovascular medicine have developed a variety of predictive models to improve the efficiency of clinical work and treatment outcomes. The types of machine learning models were introduced, and the current prediction models of cardiovascular diseases using machine learning technology were summarized. The purpose of this paper is to facilitate accurate diagnosis of cardiovascular diseases and to provide a clearer direction for future development of cardiovascular disease prediction models using machine learning techniques.
3.Nursing care of enterostomy in 6 children after small bowel transplantation
Lu LU ; Fangyan LU ; Li JI ; Yuxia TAO ; Caiping YAO
Chinese Journal of Nursing 2024;59(4):461-464
To summanze the nursing points of enterostomy among 6 children with small intestinal transplantation,which could provide references for clinical nursing.Key points:to set up a multidisciplinary team and develop an observation plan about enterostomy;to monitor the blood circulation of enterostomy closely,so as to identify the vascular complications as soon as possible;to closely observe the excrement of enterostomy and being vigilant for rejection reaction;to select reasonable nursing supplies based on the situation of enterostomy;to treat the abdominal incision fluid leakage timely,and pay attention to protect the skin around the enterostomy and take measures to control infection;furthermore,to attach great importance to continuous nursing care and improve the quality of home care.After above careful treatment,all the 6 children survived;they were discharged from hospital 3~4 months later after the operation of enterostomy restoration.Followed up 2~4 months,6 children recovered well.
4.Epidemic characteristics of measles and efforts to control measles infections in Zhejiang Province, China
Rui YAN ; Mengya YANG ; Hanqing HE ; Yan FENG ; Yang ZHOU ; Xuewen TANG ; Xuan DENG ; Yao ZHU ; Yuxia DU ; Can CHEN ; Cao KEXIN ; Shigui YANG ;
Epidemiology and Health 2024;46(1):e2024075-
OBJECTIVES:
Several countries have successfully eliminated measles, and China is making significant strides toward achieving this goal. This study focused on investigating the patterns of measles infections in Zhejiang Province, China, as well as control measures. The objective was to provide valuable insights that could contribute to the development of nationwide elimination strategies.
METHODS:
We analyzed measles surveillance data from 2005 to 2022 in Zhejiang Province. We utilized a joinpoint regression model to examine trends in measles. Additionally, we employed SaTScan version 9.5 to identify spatial-temporal clusters. Finally, we used an age-period-cohort model to assess the effects of age, period, and cohort.
RESULTS:
The age-standardized incidence rate (ASIR) of measles infection in Zhejiang Province from 2005 to 2022 was 5.24 per 100,000, showing a consistent and significant downward trend with an annual percentage change of -24.93% (p<0.05). After 2020, the ASIR for measles infection fell to below 0.1 per 100,000. The majority of measles cases occurred in individuals either without an immunization history or with an unknown immunization status, representing 41.06% and 41.40% of the cases from 2010 to 2022, respectively. According to data from the National Measles Surveillance System, the annual rate of discarded measles cases from 2009 to 2014, and the annual rate of discarded measles and rubella cases from 2015 to 2022, were both above 2 per 100,000, indicating the high sensitivity of the measles surveillance system.
CONCLUSIONS
The significant reduction in measles incidence from 2005 to 2022 demonstrates substantial progress in Zhejiang Province towards the elimination of measles.
5.Epidemic characteristics of measles and efforts to control measles infections in Zhejiang Province, China
Rui YAN ; Mengya YANG ; Hanqing HE ; Yan FENG ; Yang ZHOU ; Xuewen TANG ; Xuan DENG ; Yao ZHU ; Yuxia DU ; Can CHEN ; Cao KEXIN ; Shigui YANG ;
Epidemiology and Health 2024;46(1):e2024075-
OBJECTIVES:
Several countries have successfully eliminated measles, and China is making significant strides toward achieving this goal. This study focused on investigating the patterns of measles infections in Zhejiang Province, China, as well as control measures. The objective was to provide valuable insights that could contribute to the development of nationwide elimination strategies.
METHODS:
We analyzed measles surveillance data from 2005 to 2022 in Zhejiang Province. We utilized a joinpoint regression model to examine trends in measles. Additionally, we employed SaTScan version 9.5 to identify spatial-temporal clusters. Finally, we used an age-period-cohort model to assess the effects of age, period, and cohort.
RESULTS:
The age-standardized incidence rate (ASIR) of measles infection in Zhejiang Province from 2005 to 2022 was 5.24 per 100,000, showing a consistent and significant downward trend with an annual percentage change of -24.93% (p<0.05). After 2020, the ASIR for measles infection fell to below 0.1 per 100,000. The majority of measles cases occurred in individuals either without an immunization history or with an unknown immunization status, representing 41.06% and 41.40% of the cases from 2010 to 2022, respectively. According to data from the National Measles Surveillance System, the annual rate of discarded measles cases from 2009 to 2014, and the annual rate of discarded measles and rubella cases from 2015 to 2022, were both above 2 per 100,000, indicating the high sensitivity of the measles surveillance system.
CONCLUSIONS
The significant reduction in measles incidence from 2005 to 2022 demonstrates substantial progress in Zhejiang Province towards the elimination of measles.
6.Epidemic characteristics of measles and efforts to control measles infections in Zhejiang Province, China
Rui YAN ; Mengya YANG ; Hanqing HE ; Yan FENG ; Yang ZHOU ; Xuewen TANG ; Xuan DENG ; Yao ZHU ; Yuxia DU ; Can CHEN ; Cao KEXIN ; Shigui YANG ;
Epidemiology and Health 2024;46(1):e2024075-
OBJECTIVES:
Several countries have successfully eliminated measles, and China is making significant strides toward achieving this goal. This study focused on investigating the patterns of measles infections in Zhejiang Province, China, as well as control measures. The objective was to provide valuable insights that could contribute to the development of nationwide elimination strategies.
METHODS:
We analyzed measles surveillance data from 2005 to 2022 in Zhejiang Province. We utilized a joinpoint regression model to examine trends in measles. Additionally, we employed SaTScan version 9.5 to identify spatial-temporal clusters. Finally, we used an age-period-cohort model to assess the effects of age, period, and cohort.
RESULTS:
The age-standardized incidence rate (ASIR) of measles infection in Zhejiang Province from 2005 to 2022 was 5.24 per 100,000, showing a consistent and significant downward trend with an annual percentage change of -24.93% (p<0.05). After 2020, the ASIR for measles infection fell to below 0.1 per 100,000. The majority of measles cases occurred in individuals either without an immunization history or with an unknown immunization status, representing 41.06% and 41.40% of the cases from 2010 to 2022, respectively. According to data from the National Measles Surveillance System, the annual rate of discarded measles cases from 2009 to 2014, and the annual rate of discarded measles and rubella cases from 2015 to 2022, were both above 2 per 100,000, indicating the high sensitivity of the measles surveillance system.
CONCLUSIONS
The significant reduction in measles incidence from 2005 to 2022 demonstrates substantial progress in Zhejiang Province towards the elimination of measles.
7.Epidemic characteristics of measles and efforts to control measles infections in Zhejiang Province, China
Rui YAN ; Mengya YANG ; Hanqing HE ; Yan FENG ; Yang ZHOU ; Xuewen TANG ; Xuan DENG ; Yao ZHU ; Yuxia DU ; Can CHEN ; Cao KEXIN ; Shigui YANG ;
Epidemiology and Health 2024;46(1):e2024075-
OBJECTIVES:
Several countries have successfully eliminated measles, and China is making significant strides toward achieving this goal. This study focused on investigating the patterns of measles infections in Zhejiang Province, China, as well as control measures. The objective was to provide valuable insights that could contribute to the development of nationwide elimination strategies.
METHODS:
We analyzed measles surveillance data from 2005 to 2022 in Zhejiang Province. We utilized a joinpoint regression model to examine trends in measles. Additionally, we employed SaTScan version 9.5 to identify spatial-temporal clusters. Finally, we used an age-period-cohort model to assess the effects of age, period, and cohort.
RESULTS:
The age-standardized incidence rate (ASIR) of measles infection in Zhejiang Province from 2005 to 2022 was 5.24 per 100,000, showing a consistent and significant downward trend with an annual percentage change of -24.93% (p<0.05). After 2020, the ASIR for measles infection fell to below 0.1 per 100,000. The majority of measles cases occurred in individuals either without an immunization history or with an unknown immunization status, representing 41.06% and 41.40% of the cases from 2010 to 2022, respectively. According to data from the National Measles Surveillance System, the annual rate of discarded measles cases from 2009 to 2014, and the annual rate of discarded measles and rubella cases from 2015 to 2022, were both above 2 per 100,000, indicating the high sensitivity of the measles surveillance system.
CONCLUSIONS
The significant reduction in measles incidence from 2005 to 2022 demonstrates substantial progress in Zhejiang Province towards the elimination of measles.
8.Etiological characteristics, prevention and control of monkeypox
Xiaowen YAO ; Caihong WANG ; Rong WANG ; Yuxia ZHOU ; Zheng DANG ; Jiucong ZHANG
Chinese Journal of Microbiology and Immunology 2023;43(2):152-157
Monkeypox (MPX) is a zoonotic disease caused by monkeypox virus (MPXV) and its re-emergence is a potential global threat. The number of human MPX-positive cases reported by some coutries was increasing since it was detected in the UK on May 7, 2022, which has become a public health emergency and attracted global attention. Understanding the virological characteristics, route of transmission, pathogenic mechanism, vaccines and antiviral drugs of MPX is of great significance for the prevention and control of monkeypox. This paper briefly described the etiological characteristics and the prevention and control measures for MPX.
9.Association of inhibitory receptor T-cell immunoglobulin and immunoreceptor tyrosine-based inhibitory motif domain with immune disorders in chronic HBV infection
Yuxia ZHOU ; Caihong WANG ; Xiaowen YAO ; Rong WANG ; Xiaofeng ZHENG ; Xiaohui YU ; Jiucong ZHANG
Journal of Clinical Hepatology 2023;39(6):1418-1423
Persistent HBV infection alters the expression of receptors on the surface of innate and acquired immune cells, which may cause a variety of immune disorders and finally lead to immune escape and disease chronicity. Studies have shown that the upregulation of inhibitory receptors is the main cause of immune disorders in patients, and blocking inhibitory receptors can restore immune function to a certain extent. T-cell immunoglobulin and immunoreceptor tyrosine-based inhibitory motif domain (TIGIT) is a new type of inhibitory receptor attracting much attention at present, and it is highly expressed in NK cells and T cells. It has been found that TIGIT plays an important role in chronic viral infection, and this article briefly reviews the research advances in the association between TIGIT and immune disorders in chronic HBV infection.
10.HbA 1C variability increases the risk of decline in glomerular filtration rate in elderly patients with type 2 diabetes
Huan LIU ; Yao FAN ; Yuxia WU ; Haidi WU ; Guoqing LI ; Yan HU ; Jing DAI ; Yun YU ; Yongzhen MO ; Wei TANG
Chinese Journal of Endocrinology and Metabolism 2022;38(10):859-864
Objective:To evaluate the association of HbA 1C level and variability with annual decline in glomerular filtration rate in elderly patients with type 2 diabetes. Methods:A total of 527 elderly type 2 diabetic patients with baseline estimated glomerular filtration rate(eGFR)≥60 mL·min -1·(1.73 m 2) -1 at the diabetes center of a tertiary hospital in Jiangsu province were included and followed up. The mean value and the variability of HbA 1C, including standard deviation(HbA 1C-SD), variation coefficient(HbA 1C-CV), and adjusted standard deviation(Adj-HbA 1C-SD) were calculated. According to the annual decreased rate of eGFR, the patients were divided into △eGFR>5% group and △eGFR≤5% group. Cox proportional risk regression model was used to evaluate the relationship between HbA 1C variability and the risk of decreased glomerular filtration rate. Results:With a mean follow-up time of 19 months, there were 176 patients whose △eGFR>5%. Compared with △eGFR≤5% group, the HbA 1C-mean and HbA 1C variability were significantly higher in △eGFR>5% group( P<0.05). Cox regression analysis showed that HbA 1C-mean, HbA 1C-SD, HbA 1C-CV, and Adj-HbA 1C-SD were significantly correlated with decreased glomerular filtration rate. After adjustment for age, gender, HbA 1C-mean, and other factors, only Adj-HbA 1C-SD was correlated with renal insufficiency [ HR=3.32(1.68-6.57)]. Conclusions:HbA 1C variability is independently associated with annual decline in glomerular filtration rate in elderly patients with type 2 diabetes. The Adj-HbA 1C-SD is the most sensitive indicator in predicting decreased glomerular filtration rate.

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