1.Correlation of short sleep duration and screening myopia among primary and middle school students in Beijing
WANG Lu, ZHAO Hai, SUN Bingjie, XIA Zhiwei, GUO Xin
Chinese Journal of School Health 2025;46(1):14-17
Objective:
To study the correlation between short sleep duration and screening myopia among primary and middle school students in Beijing, so as to provide a scientific basis for the comprehensive prevention and control of myopia among students.
Methods:
Using a stratified cluster random sampling, 25 593 primary and middle school students from 16 districts of Beijing were selected from September to November 2023. The National Common Diseases and Health Influencing Factors Monitoring Survey Questionnaire was used to conduct a questionnaire survey, and visual acuity was tested according to the Specification for the Screening of Refractive Error in Primary and Middle School Students. The reporting rates of short sleep duration and detection rates of screening myopia among primary and middle school students were compared using the Chi square test. Binary Logistic regression was used to analyze the correlation between short sleep duration and screening myopia.
Results:
About 68.63% of students reported short sleep duration. There was a statistically significant difference in the reporting rate of short sleep duration among students in different school stages ( χ 2=981.18, P <0.01), with the lowest reporting rate of vocational high school students (47.07%) and the highest reporting rate of ordinary high school students (76.17%). The detection rates of screening myopia among primary school students ( 57.09% ) and middle school students (76.53%) who reported short sleep duration were higher than those who reported enough sleep duration (52.65%, 71.94%), with satistically significant differences ( χ 2=14.83, 17.96, P <0.01). The results of binary Logistic regression analysis showed that primary and middle school students with short sleep duration had a higher risk of developing screening myopia, compared to students with enough sleep duration ( OR =1.25); after adjusting for confounding factors such as educational stage, gender, region, boarding situation, primary and secondary school students with short sleep duration still had a higher risk of screening myopia ( OR =1.26) ( P <0.01). The analysis results stratified by educational stage showed that primary school students from grades 4-6 and middle school students with short sleep duration had a higher risk of screening myopia ( OR=1.18, 1.20, P <0.01).
Conclusions
Primary and secondary school students in Beijing with short sleep duration sleep have a higher risk of developing screening myopia. Families, schools, and society should ensure enough sleep duration to reduce the occurrence of myopia among students.
2.Dynamic Monitoring and Correlation Analysis of General Body Indicators, Blood Glucose, and Blood Lipid in Obese Cynomolgus Monkeys
Yanye WEI ; Guo SHEN ; Pengfei ZHANG ; Songping SHI ; Jiahao HU ; Xuzhe ZHANG ; Huiyuan HUA ; Guanyang HUA ; Hongzheng LU ; Yong ZENG ; Feng JI ; Zhumei WEI
Laboratory Animal and Comparative Medicine 2025;45(1):30-36
ObjectiveThis study aims to investigate the dynamic changes in general body parameters, blood glucose, and blood lipid profiles in obese cynomolgus monkeys, exploring the correlations among these parameters and providing a reference for research on the obese cynomolgus monkey model. Methods30 normal male cynomolgus monkeys aged 5 - 17 years old (with body mass index < 35 kg/m² and glycated hemoglobin content < 4.50%) and 99 spontaneously obese male cynomolgus monkeys (with body mass index ≥35 kg/m² and glycated hemoglobin content < 4.50%) were selected. Over a period of three years, their abdominal circumference, skinfold thickness, body weight, body mass index, fasting blood glucose, glycated hemoglobin, and four blood lipid indicators were monitored. The correlations between each indicator were analyzed using repeated measurement ANOVA, simple linear regression, and multiple linear regression correlation analysis method. Results Compared to the control group, the obese group exhibited significantly higher levels of abdominal circumference, skinfold thickness, body weight, body mass index, and triglyceride (P<0.05). In the control group, skinfold thickness increased annually, while other indicators remained stable. Compared with the first year, the obese group showed significantly increased abdominal circumference, skinfold thickness, body weight, body mass index, triglyceride, and fasting blood glucose in the second year(P<0.05), with this increasing trend persisting in the third year (P<0.05). In the control group, the obesity incidence rates in the second and third years were 16.67% and 23.33%, respectively, while the prevalence of diabetes remained at 16.67%. In the obese group, the diabetes incidence rates were 29.29% and 44.44% in years 2 and 3, respectively. Among the 11-13 year age group, the incidence rates were 36.36% and 44.68%, while for the group older than 13 years, the rates were 28.13% and 51.35%. Correlation analysis revealed significant associations (P<0.05) between fasting blood glucose and age, abdominal circumference, skinfold thickness, body weight, and triglyceride in the diabetic monkeys. Conclusion Long-term obesity can lead to the increases in general physical indicators and fasting blood glucose levels in cynomolgus monkeys, and an increase in the incidence of diabetes. In diabetic cynomolgus monkeys caused by obesity, there is a high correlation between their fasting blood glucose and age, weight, abdominal circumference, skinfold thickness, and triglyceride levels, which is of some significance for predicting the occurrence of spontaneous diabetes.
3.Relationship of family function with sleep quality and externalizing problem behaviors among preschool children
LU Yanping, GUO Shi, ZHOU Mingyue, ZHU Dongmei, YU Yizhen
Chinese Journal of School Health 2025;46(1):106-110
Objective:
To explore the relationship of family function with sleep and externalizing problem behaviors of preschool children, so as to provide a guidance for externalizing problem prevention and intervention among preschool children.
Methods:
From October 2023 to January 2024, a convenience sampling method was used to select 5 138 preschool children from kindergartens in 8 districts of Wuhan City, Hubei Province. Parents completed the survey for Family Adaptability and Cohesion Scale, children s sleep habits and Child Behavior Checklist (CBCL). Spearman correlation analysis was used to examine the correlation of family function with scores of sleep quality and externalizing problem behaviors among preschool children. A mediation model analysis and bootstrap test were conducted to further investigate the mediating role of sleep quality between family function and externalizing problem behaviors. Mplus 8.7 software was used for latent profile analysis of family function.
Results:
The reported rates of poor sleep quality and externalizing problem behaviors among preschool children were 11.8% ( n =607), 20.0% ( n =1 026). The relevant analysis results showed that family function was negatively correlated with sleep quality and externalizing problem behaviors ( r = -0.20, -0.23), and sleep quality was positively correlated with externalizing problem behaviors ( r =0.27) ( P <0.01). The mediation effect test showed that family function negatively predicted externalizing problem behaviors ( β =-0.079) and sleep quality ( β = -0.075), while sleep quality positively predicted externalizing problem behaviors ( β =0.215) ( P <0.01). The latent profile analysis results showed that family function could be classified into 4 categories: high family function group (23.01%), upper middle family function group (44.65%), moderate family function group (26.24%) and low family function group (6.11%). Compared to high family function, the other three categories significantly positively predicted externalizing problem behaviors, and the mediating effects of sleep quality on different categories of family function were statistically significant [upper middle family function: mediation effect value was 0.022 (95% CI =0.004-0.041) and direct effect value was 0.329 (95% CI =0.263-0.396); middle family function: mediation effect value was 0.087 (95% CI =0.063-0.115) and direct effect value was 0.491 (95% CI =0.416-0.565); low family function: mediation effect value was 0.144 (95% CI =0.107-0.185) and direct effect 0.621 (95% CI =0.503-0.740)] ( P < 0.05 ).
Conclusion
Family function negatively predicts the externalizing problem behaviors of preschool children, and sleep quality plays a partial mediating role.
4.Study on the synergistic antifungal effects of caspofungin acetate loaded glyceryl monostearate nanoparticle on Candida albicans
Lingyi GUO ; Yanchao LIU ; Lu GAO ; Ruiyao LIU ; Quanzhen LYU ; Yuan YU
Journal of Pharmaceutical Practice and Service 2025;43(3):136-142
Objective To prepare and characterize caspofungin acetate-loaded solid lipid nanoparticles using glycerol monostearate (CAS-SLNs), and investigate the antifungal effect of potentiation on Candida albicans in vitro and in vivo. Methods A high performance liquid chromatography method was established for the determination of caspofungin acetate (CAS). CAS-SLNs were prepared by the melt-emulsification method and characterized. The minimum inhibitory concentration (MIC) and the inhibitory effect on Candida albicans biofilm were determined. A systemic infection model of Candida albicans was established in mice, and the growth curve models for body weight and fungal load of kidneys of the animals were investigated after intravenous infection. Results The retention time of CAS was 6.8 min. The calibration curve showed good linearity, and the precision and stability met the requirements of the assay. Transmission electron microscopy revealed that CAS-SLNs were spherical, with a particle size of (135.97±1.73) nm. The Zeta potential was (19.33±0.37) mV, drug loading was (7.55±0.68)%, and encapsulation efficiency was (67.71±1.74)%. CAS-SLNs showed significant in vitro antifungal inhibition with a MIC of 9.78×10−4 g/ml, which was significantly better than CAS group and the physical mixture group of CAS and GMS, as well as the same biofilm inhibition was observed (P<0.001). Pharmacodynamic studies demonstrated that CAS-SLNs maintained stable body weight gain compared to the control (P<0.01) and CAS groups in Candida albicans invasive infection model, and that CAS-SLNs significantly reduced renal fungal burden load relative to the CAS group (P<0.05). In vivo study revealed that a stable body weight was maintained in CAS-SLNs group compared to the control group (P<0.01) in Candida albicans invasive infection model. CAS-SLNs also significantly reduced renal fungal load compared to the CAS group (P<0.05). Conclusion CAS-SLNs significantly enhanced the antifungal effects of CAS in vitro and in vivo, which provided a valuable insight for the research of new formulation of CAS.
5.Prospective study of association between dietary macronutrients and lung function in school aged children
LI Lu, CHEN Mengxue, LI Ruirui, LIU Xueting, WANG Xiaoyu, XU Yujie, XIONG Jingyuan, CHENG Guo
Chinese Journal of School Health 2025;46(2):200-204
Objective:
To explore the longitudinal associations between dietary macronutrients and lung function in schoolaged children, so as to provide the nutritional research evidence for promoting children s lung health.
Methods:
In November 2021, two primary schools located in Chengdu, Sichuan Province were selected from the Southwest China Childhood Nutrition and Growth (SCCNG) cohort by a stratified cluster random sampling method, enrolling a total of 1 112 school aged children aged 8 to 13 years. At baseline, the dietary and sociodemographic characteristics of the children were assessed. One year later, the forced vital capacity (FVC) of the children was measured and converted into Z scores (FVC- Z ), while the vital capacity index (VCI) was also calculated. Generalized linear regression analysis was employed to examine the associations between dietary macronutrients and lung function, considering interactions with gender and age, followed by stratified analysis.
Results:
After adjusting for confounding factors, the analysis results of the generalized linear regression model showed that the carbohydrate energy ratio was negatively correlated with FVC- Z ( β =-0.02) and VCI ( β =-0.16), while the fat energy ratio showed a positive correlation with FVC- Z ( β =0.03) and VCI ( β =0.23) ( P <0.05). The protein energy ratio was positively correlated with FVC- Z ( β =0.09) and VCI ( β =0.60) specifically in girls ( P <0.05). Additionally, there was an interaction effect of age on the associations between macronutrients and lung function ( P <0.01); in children aged 8-9 and 10-11, the carbohydrate energy supply ratio was negatively correlated with FVC- Z ( β =-0.04, -0.03) and VCI ( β =-0.29, -0.21), and fat energy supply ratio was positively correlated with FVC- Z ( β =0.07, 0.05) and VCI ( β =0.46, 0.32) ( P <0.05).
Conclusions
There are age and sex differences in the association of dietary macronutrients with lung function, with a low carbohydrate, high fat diet promoting lung function in children. Additionally, protein intake appears to have a positive influence on the lung function of girls. The early school age period may represent a critical window for dietary interventions aimed at promoting lung health.
6.Diagnostic value of exhaled volatile organic compounds in pulmonary cystic fibrosis: A systematic review
Xiaoping YU ; Zhixia SU ; Kai YAN ; Taining SHA ; Yuhang HE ; Yanyan ZHANG ; Yujian TAO ; Hong GUO ; Guangyu LU ; Weijuan GONG
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery 2025;32(02):223-229
Objective To explore the diagnostic value of exhaled volatile organic compounds (VOCs) for cystic fibrosis (CF). Methods A systematic search was conducted in PubMed, EMbase, Web of Science, Cochrane Library, CNKI, Wanfang, VIP, and SinoMed databases up to August 7, 2024. Studies that met the inclusion criteria were selected for data extraction and quality assessment. The quality of included studies was assessed by the Newcastle-Ottawa Scale (NOS), and the risk of bias and applicability of included prediction model studies were assessed by the prediction model risk of bias assessment tool (PROBAST). Results A total of 10 studies were included, among which 5 studies only identified specific exhaled VOCs in CF patients, and another 5 developed 7 CF risk prediction models based on the identification of VOCs in CF. The included studies reported a total of 75 exhaled VOCs, most of which belonged to the categories of acylcarnitines, aldehydes, acids, and esters. Most models (n=6, 85.7%) only included exhaled VOCs as predictive factors, and only one model included factors other than VOCs, including forced expiratory flow at 75% of forced vital capacity (FEF75) and modified Medical Research Council scale for the assessment of dyspnea (mMRC). The accuracy of the models ranged from 77% to 100%, and the area under the receiver operating characteristic curve ranged from 0.771 to 0.988. None of the included studies provided information on the calibration of the models. The results of the Prediction Model Risk of Bias Assessment Tool (PROBAST) showed that the overall bias risk of all predictive model studies was high, and the overall applicability was unclear. Conclusion The exhaled VOCs reported in the included studies showed significant heterogeneity, and more research is needed to explore specific compounds for CF. In addition, risk prediction models based on exhaled VOCs have certain value in the diagnosis of CF, but the overall bias risk is relatively high and needs further optimization from aspects such as model construction and validation.
7.Clinical features of patients with recurrent primary common bile duct stones after cholecystectomy
Jianhui LU ; Yongli LI ; Ruifang GUO ; Rongquan XUE
Journal of Clinical Hepatology 2025;41(1):118-126
ObjectiveTo investigate the general situation, dietary factors, and clinical features of patients with recurrent primary common bile duct stones, and to provide a basis for effective prevention of stone recurrence. MethodsA retrospective analysis was performed for 23 730 patients who underwent cholecystectomy due to cholelithiasis in Department of Hepatobiliary, Pancreatic and Spleen Surgery, Inner Mongolia People’s Hospital, from January 2013 to December 2023, and according to the presence or absence of recurrence of primary common bile duct stones after surgery, 334 patients were divided into recurrence group. The recurrence group was further analyzed based on sex in terms of recurrence rate, recurrence cycle, recurrence age, recurrence type, and general, disease, imaging, and dietary factors. The independent-samples t test was used for comparison of continuous data between two groups, the chi-square test was used for comparison of categorical data between two groups. ResultsThere were 334 cases of recurrence of primary bile duct stones after cholecystectomy, with a recurrence rate of 1.41%, and the highest frequency of recurrence cycle was observed in 10 years after surgery, with a significant difference in recurrence cycle between the male and female patients (t=5.238, P<0.001). There was a significant difference in the recurrence rate of stones after surgery between the patients with simple gallstones and those with gallbladder and common bile duct stones at initial diagnosis (1.23% vs 2.76%, χ2=42.104, P<0.001). The patients with recurrence aged >60 years accounted for the highest proportion in the whole population and in both male and female populations, and 92% were Han residents; 10% of the patients with recurrence had a family history of gallstones, and as for comorbidities, the patients with hypertension accounted for the highest proportion. Among the patients with recurrence, the patients with smoking or drinking accounted for 76.7% and 10.3%, respectively. As for body weight, 63.8% of the patients with recurrence had a normal body mass index (BMI), and 23.2% of the patients were overweight; compared with body weight at the time of the first gallbladder surgery, a reduction in body weight was observed in 60.1% of the patients with recurrence, while an increase in body weight was observed in 22.9% of the patients with recurrence. There were significant differences between the male and female patients with recurrence in age composition, ethnicity, the type of place of residence, comorbidities, smoking, drinking, BMI, and the change in body weight (all P<0.001). As for the type of stone recurrence, the ratio of multiple stones, solitary stones, and muddy stones was 74∶15∶11, and the stone size of <1 cm, 1-2 cm, and >2 cm accounted for about 40.5%, 48.8%, and 10.6%, respectively. As for the surgical procedure, the patients undergoing laparotomy accounted for 66.1%, and those undergoing laparoscopy accounted for 33.9%. The patients with various types of dyslipidemia accounted for a percentage of<30%. There were significant differences between the male and female patients with recurrence in the type of stones at initial onset, the type and size of stones, and surgical procedure (all P<0.001). Imaging data showed that 4 patients had an abnormal structure of the bile duct, manifesting as long and curve cystic ducts, and 73.1% of the patients had common bile duct dilatation after surgery. The follow-up of dietary factors showed irregular diets in 55.8% of the patients with recurrence. As for the dietary structure, meat and staple food accounted for 43.8% and 37.8%, respectively, which showed a sex difference, with meat in male patients and staple food in female patients; 64.1% of the patients with recurrence had a high-salt and high-oil diet; 59.8% of the patients had changes in diet after the first surgery for stones, among whom 80% were able to have a regular diet, and the patients with a regular diet accounted for 92%. ConclusionThere is a relatively low recurrence rate of primary common bile duct stones in this area, and there is no sex difference. The peak of recurrence is 10 years after surgery, and recurrence of stones is mainly observed in the population aged >60 years. The analysis of dietary and clinical features can help doctors and patients to further understand the characteristics of the recurrence of primary common bile duct stones and provide a basis for subsequent targeted prevention.
8.Protective Effect of Shengxiantang on Myocardial Microvascular Injury in Rats with Chronic Heart Failure
Hui GAO ; Zeqi YANG ; Fan GAO ; Hongjing LI ; Aiyangzi LU ; Xingchao LIU ; Qiuhong GUO
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(7):35-42
ObjectiveTo explore the protective effect of Shengxiantang on cardiac function and myocardial microvascular injury in rats with chronic heart failure (CHF). MethodsThe CHF rat model was prepared by aortic arch constriction (TAC). Of the 72 SD rats, 8 were randomly selected as the sham operation group, where the chest was opened without ligating the aortic arch. The 40 successfully modeled rats were randomly divided into the model group, the Shengxiantang low-, medium-, and high-dose groups (5.1, 10.2, 20.4 g·kg-1), and the trimetazidine group (6.3 mg·kg-1), with 8 rats in each group. Drug administration began 4 weeks after modeling. The administration groups received the corresponding drugs by gavage, while the sham operation and model groups were given the same amount of distilled water for 8 consecutive weeks. Echocardiography was used to assess cardiac function. Enzyme-linked immunosorbent assay (ELISA) was used to detect the levels of nitric oxide (NO), endothelin (ET-1), vascular endothelial growth factor (VEGF), and von Willebrand factor (vWF). Ultrastructural changes of microvessels were observed by transmission electron microscopy. Immunohistochemistry was used to detect the expression levels of ATP synthase subunit (ATP5D) and F-actin in myocardial tissue. Western blot was used to detect the expression levels of occludin, claudin, vascular endothelial cadherin (VE-Cadherin), and zonula occludens-1 (ZO-1). Microvessel density was measured by immunofluorescence staining. ResultsCompared with the sham operation group, the ejection fraction (EF) and left ventricular shortening fraction (FS) in the model group were significantly decreased (P<0.01), while the left ventricular diastolic diameter (LVIDd), left ventricular systolic diameter (LVIDs), left ventricular end-diastolic posterior wall thickness (LVPWd), left ventricular end-systolic posterior wall thickness (LVPWs), left ventricular end-diastolic volume (LVVOLd), and left ventricular end-systolic volume (LVVOLs) were significantly increased (P<0.01). The levels of NO and VEGF were significantly decreased (P<0.01), while the levels of ET-1 and vWF were significantly increased (P<0.01). Under electron microscopy, the microvascular basement membrane was incomplete and the tight junctions were blurred. The expression levels of ATP5D, F-actin, occludin, claudin, ZO-1, and VE-Cadherin were significantly decreased (P<0.05, P<0.01), and the relative density of microvessels was significantly reduced (P<0.05, P<0.01). After intervention with Shengxiantang, the EF and FS of CHF rats significantly increased (P<0.01), while the LVIDd, LVIDs, LVPWd, LVPWs, LVVOLd, and LVVOLs significantly decreased (P<0.01). The levels of NO and VEGF significantly increased (P<0.01), while the levels of ET-1 and vWF significantly decreased (P<0.01). Under electron microscopy, the microvascular basement membrane was relatively complete and the tight junctions were more continuous. The expression levels of ATP5D, F-actin, occludin, claudin, ZO-1, and VE-Cadherin significantly increased (P<0.05, P<0.01), and the relative density of microvessels significantly increased (P<0.01). ConclusionShengxiantang can effectively improve the cardiac function of CHF rats, reduce microvascular endothelial injury, strengthen the connection between endothelial cells, and increase microvessel density, thereby protecting myocardial microvascular injury.
9.Protective Effect of Shengxiantang on Myocardial Microvascular Injury in Rats with Chronic Heart Failure
Hui GAO ; Zeqi YANG ; Fan GAO ; Hongjing LI ; Aiyangzi LU ; Xingchao LIU ; Qiuhong GUO
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(7):35-42
ObjectiveTo explore the protective effect of Shengxiantang on cardiac function and myocardial microvascular injury in rats with chronic heart failure (CHF). MethodsThe CHF rat model was prepared by aortic arch constriction (TAC). Of the 72 SD rats, 8 were randomly selected as the sham operation group, where the chest was opened without ligating the aortic arch. The 40 successfully modeled rats were randomly divided into the model group, the Shengxiantang low-, medium-, and high-dose groups (5.1, 10.2, 20.4 g·kg-1), and the trimetazidine group (6.3 mg·kg-1), with 8 rats in each group. Drug administration began 4 weeks after modeling. The administration groups received the corresponding drugs by gavage, while the sham operation and model groups were given the same amount of distilled water for 8 consecutive weeks. Echocardiography was used to assess cardiac function. Enzyme-linked immunosorbent assay (ELISA) was used to detect the levels of nitric oxide (NO), endothelin (ET-1), vascular endothelial growth factor (VEGF), and von Willebrand factor (vWF). Ultrastructural changes of microvessels were observed by transmission electron microscopy. Immunohistochemistry was used to detect the expression levels of ATP synthase subunit (ATP5D) and F-actin in myocardial tissue. Western blot was used to detect the expression levels of occludin, claudin, vascular endothelial cadherin (VE-Cadherin), and zonula occludens-1 (ZO-1). Microvessel density was measured by immunofluorescence staining. ResultsCompared with the sham operation group, the ejection fraction (EF) and left ventricular shortening fraction (FS) in the model group were significantly decreased (P<0.01), while the left ventricular diastolic diameter (LVIDd), left ventricular systolic diameter (LVIDs), left ventricular end-diastolic posterior wall thickness (LVPWd), left ventricular end-systolic posterior wall thickness (LVPWs), left ventricular end-diastolic volume (LVVOLd), and left ventricular end-systolic volume (LVVOLs) were significantly increased (P<0.01). The levels of NO and VEGF were significantly decreased (P<0.01), while the levels of ET-1 and vWF were significantly increased (P<0.01). Under electron microscopy, the microvascular basement membrane was incomplete and the tight junctions were blurred. The expression levels of ATP5D, F-actin, occludin, claudin, ZO-1, and VE-Cadherin were significantly decreased (P<0.05, P<0.01), and the relative density of microvessels was significantly reduced (P<0.05, P<0.01). After intervention with Shengxiantang, the EF and FS of CHF rats significantly increased (P<0.01), while the LVIDd, LVIDs, LVPWd, LVPWs, LVVOLd, and LVVOLs significantly decreased (P<0.01). The levels of NO and VEGF significantly increased (P<0.01), while the levels of ET-1 and vWF significantly decreased (P<0.01). Under electron microscopy, the microvascular basement membrane was relatively complete and the tight junctions were more continuous. The expression levels of ATP5D, F-actin, occludin, claudin, ZO-1, and VE-Cadherin significantly increased (P<0.05, P<0.01), and the relative density of microvessels significantly increased (P<0.01). ConclusionShengxiantang can effectively improve the cardiac function of CHF rats, reduce microvascular endothelial injury, strengthen the connection between endothelial cells, and increase microvessel density, thereby protecting myocardial microvascular injury.
10.Effect of Yiqi Wenyang Huoxue Lishui Components on Cardiac Function and Mitochondrial Energy Metabolism in CHF Rats
Hui GAO ; Zeqi YANG ; Xin LIU ; Fan GAO ; Yangyang HAN ; Aiyangzi LU ; Xingchao LIU ; Qiuhong GUO
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(2):27-36
ObjectiveTo investigate the effects of Yiqi Wenyang Huoxue Lishui components on the cardiac function and mitochondrial energy metabolism in the rat model of chronic heart failure (CHF) and explore the underlying mechanism. MethodsThe rat model of CHF was prepared by transverse aortic constriction (TAC). Eight of the 50 SD rats were randomly selected as the sham group, and the remaining 42 underwent TAC surgery. The 24 SD rats successfully modeled were randomized into model, trimetazidine (6.3 mg·kg-1), and Yiqi Wenyang Huoxue Lishui components (60 mg·kg-1 total saponins of Astragali Radix, 10 mg·kg-1 total phenolic acids of Salviae Miltiorrhizae Radix et Rhizoma, 190 mg·kg-1 aqueous extract of Lepidii Semen, and 100 mg·kg-1 cinnamaldehyde) groups. The rats were administrated with corresponding agents by gavage, and those in the sham and model groups were administrated with the same amount of normal saline at a dose of 10 mL·kg-1 for 8 weeks. Echocardiography was used to examine the cardiac function in rats. Enzyme-linked immunosorbent assay was employed to determine the serum levels of N-terminal pro-B-type natriuretic peptide (NT-ProBNP), hypersensitive troponin(cTnI), creatine kinase (CK), lactate dehydrogenase (LD), free fatty acids (FFA), superoxide dismutase (SOD), and malondialdehyde (MDA). The colorimetric assay was employed to measure the levels of adenosine triphosphate (ATP), adenosine diphosphate (ADP), and adenosine monophosphate (AMP) in the myocardial tissue. The pathological changes in the myocardial tissue were observed by hematoxylin-eosin staining and Masson staining. The Na+-K+-ATPase and Ca2+-Mg2+-ATPase activities in the myocardial tissue were determined by the colorimetric assay. The ultrastructural changes of myocardial mitochondria were observed by transmission electron microscopy. Western blot was employed to determine the protein levels of ATP synthase subunit delta (ATP5D), glucose transporter 4 (GLUT4), and carnitine palmitoyltransferase-1 (CPT-1). The mitochondrial complex assay kits were used to determine the activities of mitochondrial complexes Ⅰ, Ⅱ, Ⅲ, and Ⅳ. ResultsCompared with the sham group, the model group showed a loosening arrangement of cardiac fibers, fracture and necrosis of partial cardiac fibers, inflammatory cells in necrotic areas, massive blue fibrotic tissue in the myocardial interstitium, increased collagen fiber area and myocardial fibrosis, destroyed mitochondria, myofibril disarrangement, sparse myofilaments, and fractured and reduced cristae. In addition, the rats in the model group showed declined ejection fraction (EF) and fractional shortening (FS), risen left ventricular end-diastolic diameter (LVIDd), left ventricular end-systolic diameter (LVIDs), left ventricular end-diastolic posterior wall thickness (LVPWd), left ventricular end-systolic posterior wall thickness (LVPWs), left ventricular end-diastolic volume (LVVOLd), and left ventricular end-systolic volume (LVVOLs), elevated levels of NT-ProBNP, cTnI, CK, MDA, FFA, and LD, lowered level of SOD, down-regulated protein levels of GLUT4 and CPT-1, decreased activities of Na+-K+-ATPase, Ca2+-Mg2+-ATPase, and respiratory complexes Ⅰ-Ⅳ, and declined levels of ATP5D, ATP, ADP, and AMP (P<0.05, P<0.01). Compared with the model group, the Yiqi Wenyang Huoxue Lishui components and trimetazidine groups showed alleviated pathological damage of the mitochondria and mycardial tissue, risen EF and FS, declined LVIDd, LVIDs, LVPWd, LVPWs, LVVOLd, and LVVOLs, lowered levels of NT-ProBNP, cTnI, CK, MDA, FFA, and LD, elevated level of SOD, up-regulated protein levels of GLUT4 and CPT-1, increased activities of Na+-K+-ATPase, Ca2+-Mg2+-ATPase, and respiratory complexes Ⅰ-Ⅳ, and elevated levels of ATP5D, ATP, ADP, and AMP (P<0.05, P<0.01). ConclusionYiqi Wenyang Huoxue Lishui components can improve the cardiac function, reduce myocardial injury, regulate glucose and lipid metabolism, optimize the utilization of substrates, and alleviate the damage of mitochondrial structure and function, thus improving the energy metabolism of the myocardium in the rat model of CHF.


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