1.Research progress of SIRT1 in ophthalmic diseases
Yanyan YU ; Zhenzhen JI ; Zhijian LI
International Eye Science 2025;25(2):225-229
The sirtuin 1(SIRT1)is an important NAD+-dependent deacetylase that has attracted much attention in ophthalmic research in recent years. This is because the expression of SIRT1 in ocular tissues and its function are inextricably linked to the pathogenesis and progression of many ocular diseases, including dry eye, glaucoma, cataract and diabetic retinopathy. Through in-depth investigations, we have found that SIRT1, as a key regulatory protein, has a profound impact on the pathophysiological processes of ocular diseases through a variety of mechanisms, such as regulating apoptotic programs, modulating oxidative stress, mediating inflammatory responses and maintaining normal mitochondrial function. These findings indicate that SIRT1 plays an important protective role in ocular diseases. The aim of this article is to comprehensively review the latest research findings on SIRT1 in ophthalmic diseases in recent years, and hopes to provide new ideas and methods for the prevention and treatment of ophthalmic diseases by thoroughly analyzing the mechanism of action of SIRT1.
2.Research progress on quorum sensing in the caries-causing effects of Streptococcus mutans and Candida albicans
LIAO Zhenzhen ; LI Wenxiu ; LIANG Yan
Journal of Prevention and Treatment for Stomatological Diseases 2025;33(4):328-335
Dental caries is a major disease that seriously endangers human oral health. Dental plaque biofilm composed of many microorganisms is the primary factor of dental caries. Inhibiting biofilm formation has become the focus of research on the prevention and treatment of dental caries. Streptococcus mutans and Candida albicans, as common pathogenic bacteria in the oral cavity, are closely related to the occurrence of dental caries. The interaction between the two can lead to the rapid onset of dental caries. In recent years, many studies have found that Candida albicans promotes the occurrence of caries by interacting with Streptococcus mutans, including physical adhesion, promoting the production of exopolysaccharides (EPS), reducing the pH of the microecological environment, forming a highly cariogenic acidic environment, and secreting quorum sensing molecules to trigger quorum sensing. As a communication mechanism between microorganisms, the quorum sensing system mainly includes three main types: autoinducing peptide (AIP) system, autoinducer-2 (AI-2) system, and Acyl-homoserine lactone (AHL) system. At present, quorum sensing has been shown to promote the occurrence of diseases by activating the expression of microbial pathogenicity-related genes, promoting EPS synthesis and biofilm formation. The CSP-ComDE and ComRS quorum sensing systems of Streptococcus mutans allow the bacteria to survive and cause disease in extreme environments that are unfavorable for survival, while the quorum sensing system of Candida albicans is mainly mediated by farnesol, which has a negative regulatory effect on the yeast-hyphae transformation of Candida albicans. Studying the quorum sensing phenomenon of the two bacteria is helpful to understand the etiology of caries. In recent years, many studies have reported the use of quorum sensing inhibitors in anti-microbial applications. The study of microbial quorum sensing systems and inhibitors will help the prevention and treatment of caries. With the increasing interest in biofilm-related research, and a new method for in-depth study of the biofilm formation process and quorum sensing behavior using microfluidic and chip laboratory technology is proposed. The author summarizes the cariogenic effects, the quorum sensing system and quorum sensing inhibitors of Streptococcus mutans and Candida albicans.
3.An analysis of epidemiological characteristics of influenza-like illness in Hongkou District, Shanghai from 2015 to 2024
Zhenzhen QI ; Tong LI ; Xiaofan REN ; Haiyan WANG ; Jixing YANG
Shanghai Journal of Preventive Medicine 2025;37(8):649-653
ObjectiveTo explore the epidemic levels and epidemiological characteristics of influenza-like illness (ILI) in Hongkou District of Shanghai, to track the trends in virus mutations, so as to offer a scientific foundation for precisely predicting influenza epidemic trends, providing early alerts, and implementing prompt prevention and control measures. MethodsData on ILI and etiological surveillance from Hongkou District between 2015 and 2024 were collected and statistically analyzed. ResultsThe consultation percentage of ILI (ILI%) in Hongkou District from 2015 to 2024 was 0.58%, and the differences were statistically significant between different years (χ²=19 280.500, P<0.001), with winter and summer being the prevalence peaks. The highest proportion of ILI cases was observed in the 25‒<60 years age group, and the proportion of cases aged ≥60 years showed an increasing trend. The positive rate for influenza viruses was 17.60%, with seasonal influenzaA (H3N2) subtype (49.78%) and influenza A(H1N1) (30.03%) being the predominant strains,and the positive rate was different by years. There was a correlation between ILI% and the positive rate of influenza viruses (r=0.260, P<0.001). The median intensity of influenza activity in 2023‒2024 was 23.09, which was significantly higher than that in 2015‒2019 (H=37.052, P<0.001) and that in 2020‒2022 (H=40.436, P<0.001). ConclusionFrom 2015 to 2022, the ILI% in Hongkou District, Shanghai remained at a relatively low level, but it significantly increased in 2023‒2024, with peaks observed in winter and summer. The predominant influenza virus strains varied and alternated by years. The 2023‒2024 period witnessed an intensified influenza activity. It is necessary to continuously monitor the impact of other respiratory pathogens on influenza epidemic, so as to provide a scientific basis for early warning and prevention and control of influenza.
4.Association of mother-child interaction and screen exposure with psychological and behavioral problems among preschool children
DENG Hong, WU Jun, WU Zhenzhen, YAO Peng, LI Ruoyu, HUANG Yongling, WAN Yuhui
Chinese Journal of School Health 2025;46(11):1590-1593
Objective:
To analyze the association of mother-child interaction and screen exposure of preschool children with psychological and behavioural problems, so as to provide guidance for promoting the psychological development of preschool children.
Methods:
From November to December 2024, a convenience cluster sampling method was used to survey 2 977 mothers of preschool children in Daguan and Yingjiang districts of Anqing City. The Chinese Parent-Child Interaction Scale (CPCIS) was applied to evaluate the quality of mother-child interaction, and the Conners Parent Symptom Questionnaire (PSQ) was used to assess the psychological and behavioral problems of preschool children. Binary Logistic regression was applied to analyze the association of mother-child interaction, screen exposure and their combined effect on psychological and behavioral problems among preschool children.
Results:
The detection rate of psychological and behavioral problems among preschool children was 13.9%. Binary Logistic regression results showed that low scores of mother-child interaction ( OR=2.31, 95%CI =1.72-3.11) and high screen exposure ( OR= 1.52 , 95%CI =1.23-1.88) were higher risks for psychological and behavioral problems in preschool children; the results of the combined effect showed that preschool children in low scores of mother-child interaction and low screen exposure group ( OR=2.18, 95%CI =1.46-3.28), low scores of mother-child interaction and high screen exposure group ( OR=3.13, 95%CI =2.10- 4.65 ) had significantly higher risks of abnormal detection in psychological and behavioral problems, compared to those in the high scores of mother-child interaction and low screen exposure group respectively (all P <0.05).
Conclusions
Both screen exposure and mother- child interaction are associated with psychological and behavioral problems in preschool children. High quality mother-child interaction can relieve the adverse effects of screen exposure on preschool children s psychological and behavioral development.
5.Rubescensine A reduces podocyte damage induced by high glucose through the autophagy pathway mediated by AMPK/SIRT1 pathway
Zhenzhen LI ; Ting HUANG ; Yang BAI ; Yan WANG
Chinese Journal of Diabetes 2024;32(3):203-209
Objective To investigate the mechanism that Rubescensine A reduces the podocyte damage induced by high glucose(HG)through the autophagy pathway mediated by AMP activated protein kinase/silent information regulator 1(AMPK/SIRT1)pathway.Methods Human glomerular podocytes were cultured in vitro,and randomly divided into Control group(Con),HG group,hydroxychloroquine(HCQ)group,and Rapamycin(RAP)group.CCK-8 was used to detect cell viability.Western blotting was used to detect cell apoptosis and podocyte injury related protein expression in each group.The podocyte model induced by high glucose(HG)was treated with Rubescensine A(Rub A)at different concentrations and the optimal concentration was selected.Then,human glomerular podocytes were randomly divided into Con group,HG group,Rub A group,Compound C group,and Rub A+Compound C group.The expression of autophagy,AMPK/SIRT1 pathway related proteins were detected in each group.Results Compared with Con group,the podocyte viability and the protein expressions of Synaptopodin and Bcl-2 was significantly reduced(P<0.05),while the protein expressions of Desmin and Bax were significantly increased in HG group(P<0.05).Compared with the HG group,all indicators were relieved in RAP group.However,the levels of all indicators were worsened in HCQ group.Compared with Con group,the expression levels of Desminand Bax proteins in podocytes were significantly increased(P<0.05),and the podocyte viability,number of autophagosomes,the expression levels of Synaptopodin,Bcl-2,microtubule associated protein light chain 3(LC3)II/I,Beclin-1,p-AMPK/AMPK and SIRT1 proteins were significantly reduced in HG group(P<0.05).Compared with HG group and Rub A+Compound C group,the above indicators were improved in Rub A group.Compound C group reversed the protective effect of Rub A.Conclusion Rubescensine A can promote autophagy by activating AMPK/SIRT1 pathway,thereby reduce podocyte damage induced by high glucose.
6.Effects of group sports game intervention on social skills and quality of life in children with austism spectrum disorders
LIU Li, HU Sunyi, WANG Tianhua, LIU Zhenzhen, GUO Xin, CUI Jianmei
Chinese Journal of School Health 2024;45(1):110-114
Objective:
To explore the effects of group sports game intervention on social ability and quality of life of children with austism spectrum disorders (ASD),so as to provide reference for rehabilitation intervention of social and quality of life of children with ASD.
Methods:
From September 2021 to January 2022, 72 children with ASD aged 4-6 in the children s rehabilitation department of Xiangyang Central Hospital were selected to participate in the study, and were randomly divided into experimental group ( n =36) and control group ( n =36). The control group received routine rehabilitation training (including individual sports game training), and the experimental group replaced individual sports game training with group sports game training on the basis of routine rehabilitation.The course content mainly included three parts: warm up before class, group sports games and relaxation after class. The course combined social skills with sports games, and was carried out in a group form (divided into 12 groups with 3 people in each group), and was trained five times a week for 60 minutes, for a total of 12 weeks. The scores of Childhood Autism Rating Scale (CARS), Autism Treatment Evaluation Checklist (ATEC), Social Responsiveness Scale (SRS) and Pediatric Quality of Life Inventory Version 4.0 Generic Core Scales (PedsQL 4.0) were observed before and after treatment. t-test and χ 2 test were used for statistical analysis.
Results:
There was no significant difference in SRS scores between the experimental group and the control group before intervention ( t =-0.63, P >0.05). After the intervention, the total response rate in the experimental group was 83.33 %, higher than 41.67% in the control group χ 2=13.33, P <0.05),and the SRS scores decreased in the experimental group and control group ( t =17.75,8.71, P <0.05). The SRS scale score of the experimental group Social perception (17.67±4.12) , social cognition (30.33±4.99) , social communication (50.33±9.39) , social motivation (24.25±6.78) scores and total scores ( 152.67± 25.82) were lower than those of the control group(22.17±5.34,36.00±4.13,62.58±11.07,34.42±7.13,186.33±29.03)( t = -4.88,-2.03,-2.13,-3.58,-3.01, P <0.05).After the intervention, the scores of social function (53.33±18.01) and total score (283.83±51.83) on PedsQL 4.0 scale in experimental group were higher than those in control group(23.33±15.13,218.00±39.01) ( t =4.42,3.52, P <0.05). After the intervention, Autism Treatment Evaluation Scale (ATEC) scores of experimental groups(44.33±14.72) was lower than that in control group ( 59.33±16.95)( t =-2.32, P <0.05).
Conclusion
The intervention of group sports game has a significant effect on improving social ability and life quality of children with ASD.
7.Establishment of a Traditional Chinese Medicine Syndrome Diagnostic Model Based on Stacking Ensemble Learning:Take Lung Cancer as an Example
Xiaochuan GUO ; Zhenzhen FENG ; Wenrui LIU ; Jiansheng LI
Journal of Traditional Chinese Medicine 2024;65(17):1775-1783
ObjectiveTo explore the method of optimizing the performance of traditional Chinese medicine (TCM) syndrome diagnostic models using Stacking ensemble learning. MethodsTaking the construction of TCM syndrome diagnostic model for lung cancer as an example, 2598 cases of clinical symptoms and signs from lung cancer patients in 9 hospitals were used as independent variables (i.e., feature variables), TCM syndrome information as dependent variables, and the clinical data were divided into training set and testing set in 8:2 ratio according to random number table method using Python 3.7 software. The stable features of TCM syndrome of lung cancer were screened using chi-square test, Spearman's correlation test, and Least Absolute Shrinkage and Selection Operator (LASSO) logistic regression analysis; nine machine learning algorithms are trained, including support vector machines (SVMs), k-nearest neighbors (KNN) algorithm, Random Forest (RF), Extremely Randomized Trees, Extreme Gradient Boosting (XGBoost), Lightweight Gradient Boosting (LightGBM), Adaptive Boosting (AdaBoost), Gradient Boosting (GB) and the multi-layer perceptron (MLP), to obtain 9 basic models. Four models with better performance were screened out from the above basic models and fused to form a fusion model by using the Stacking ensemble learning, and the fusion model was trained twice by the above nine machine learning algorithms and evaluated by accuracy rate, micro-average ROC curves, area under the curve (AUC), and confusion matrix metrics, to screen the optimal diagnostic model. ResultsAfter data processing, 79 stable features and 13 TCM syndromes were obtained. In the basic model training, the comprehensive performance of RF, ExtraTrees, MLP and SVM basic models were better, so the predicted distributions of the syndromes of these four models were used as the secondary training data, and nine fusion models were obtained based on the Stacking ensemble learning (SVM, KNN, RF, ExtraTree, XGBoost, LightGBM, GB, AdaBoost, MLP). Among them, the XGBoost fusion model performed the best, with an accuracy of 0.850 and 0.838 in the training set and test set, respectively, an overfitting difference of 0.012, and an area under the micro-average ROC curve of 0.996. All fusion models showed an improvement in accuracy and area under the micro-average ROC curve compared with the base model in the test set. ConclusionTaking the TCM syndrome information of lung cancer as an example, the XGBoost fusion model has significant advantages in improving the diagnostic performance of TCM syndrome information of lung cancer through Stacking ensemble learning. It can be seen that the advantages of Stacking ensemble learning to integrate multiple models and effectively improve the diagnostic efficiency of TCM diagnostic models, which provided a methodological reference for similar studies.
8.Construction, Activity Evaluation and Molecular Simulation Study of α-Naphthylthiol Amino Acid Esters as Novel LSD1 Inhibitors
Zhonghua LI ; Zhenzhen WANG ; Tingting QIN ; Pan WANG ; Kai HU ; Zhishen XIE ; Lixin LI ; Xiaowei ZHANG ; Junying SONG ; Weihong REN ; Jinlian MA
Chinese Journal of Modern Applied Pharmacy 2024;41(3):295-302
OBJECTIVE
To design and synthesize novel α-naphthylthiol amino acid ester lysine specific demethylase 1(LSD1) inhibitors, evaluate their inhibitory activity with selectivity against LSD1, and explore their binding mechanism through molecular docking and dynamics simulation.
METHODS
Based on the binding mode of hit compound 3a with LSD1, the α- naphthyl mercapto amino acid ethyl ester small molecule compound were designed by fixing the planar hydrophobic naphthyl ring in the structure, while introducing hydrophilic amino fragment, and they were prepared through a multi-component one-pot cascade reaction. All the compounds were evaluated for their inhibitory activity against LSD1 at concentrations of 5.0 and 1.0 μmol·L–1 using the LSD1 screening platform of research group. The most potent compound was tested for its IC50 value and enzyme selectivity over MAO-A and MAO-B, and its binding mode was investigated through molecular docking and dynamics simulation.
RESULTS
A total of 13 compounds were obtained, all of which exhibited significant inhibitory effects on LSD1. Among them, nine compounds showed an inhibitory rate of over 50.0% against LSD1 at a concentration of 1.0 μmol·L–1, while compound 3l displaying the best activity with an IC50 value of 0.17 μmol·L–1, 174 times higher than the positive control. It also showed excellent selectivity towards MAO-A and MAO-B. Molecular docking and dynamics simulations indicated that compound 3l inhibited the activity of LSD1 through multiple interactions.
CONCLUSION
The structures of α-naphthylthiol amino acid ester can serve as lead compounds or active fragments, laying a solid foundation for the subsequent design of LSD1 inhibitors based on structure-oriented drug design.
9.The Influence of Shoutai Wan (寿胎丸) on Lactic Acid Content at the Maternal-Fetal Interface and Expression of Immune-Related Factors in Recurrent Miscarriage Model Mice
Jingfang LYU ; Min JIANG ; Zhenzhen ZHOU ; Li ZHANG ; Shuhui WANG ; Dandan LI ; Yajing SONG ; Huilan DU
Journal of Traditional Chinese Medicine 2024;65(9):934-942
ObjectiveTo explore the possible mechanisms of Shoutai Wan (寿胎丸) in treating recurrent miscarriage (RSA) from the perspective of immune tolerance under the acidic microenvironment at the maternal-fetal interface. MethodsFemale CBA/J mice were randomly divided into normal group, model group, progesterone group, and Shoutai Wan group, with 15 mice in each group. The mice in the normal group and model group were given 0.2 ml distilled water by gavage each day, the Shoutai Wan group given Shoutai Wan decoction 0.15 g/(10 g·d) by gavage, the progesterone group given progesterone tablets 0.44 mg/(10 g·d) by gavage. After gavage for 14 days, the mice were cohabited. Female CBA/J mice in the normal group were mated with male BALB/c mice at a ratio of 2∶1, and female CBA/J mice in the other groups were mated with male DBA/2 mice at a ratio of 2∶1 to establish the RSA mouse model. Vaginal smears were taken from the female mice the next morning, and the appearance of a large number of spermatozoa and the presence of a vaginal plug were considered as the first day of pregnancy. After the appearance of the plug, the mice were continued to be administered according to the previous method until the 10th day of pregnancy. On the 10th day of pregnancy, maternal-fetal interface tissues were collected from each group of mice, and lactate dehydrogenase colorimetric method was used to detect lactate (LA) content; qPCR method and Western blot method were used to detect the expression of immune-related factors interleukin-4 (IL-4), interferon-gamma (IFN-γ), transforming growth factor beta 1 (TGF-β1), and forkhead box protein 3 (Foxp3) mRNA and protein; flow cytometry was used to detect the numbers of helper T lymphocyte 1 (Th1), helper T lymphocyte 2 (Th2), regulatory T cell (Treg), classical macrophage (M1), and alternative macrophage (M2). The bivariate Pearson test was used to analyze the correlation between LA content and the numbers of Th1, Th2, Treg, M1, and M2 cells, as well as the correlation between LA content and the expression of IL-4, IFN-γ, TGF-β1, Foxp3 protein, and mRNA. ResultsOn the 10th day of pregnancy, compared with the normal group, the LA content decreased in the model group, and the expression of IL-4, TGF-β1, Foxp3 protein and mRNA in the maternal-fetal interface tissues decreased, while the expression of IFN-γ protein and mRNA increased. The numbers of Th1 and M1 cells increased, while the numbers of Th2, Treg, and M2 cells decreased (P<0.05 or P<0.01). Compared with the model group, the LA content increased in the Shoutai Wan group and progesterone group. The expression of IL-4, TGF-β1, Foxp3 protein and mRNA in the maternal-fetal interface tissues increased, while the expression of IFN-γ protein and mRNA decreased. The numbers of Th1 and M1 cells decreased, while the numbers of Th2, Treg, and M2 cells increased (P<0.05 or P<0.01). The LA content was positively correlated with the numbers of Th2, Treg, and M2 cells, and the expression of IL-4, TGF-β1, Foxp3 protein, and mRNA (P<0.05 or P<0.01); the LA content was negatively correlated with the numbers of Th1, M1 cells, and the expression of IFN-γ protein and mRNA (P<0.05 or P<0.01). ConclusionShoutai Wan may improve immune tolerance by regulating the expression of immune-related factors in the acidic microenvironment at the maternal-fetal interface of RSA model mice, thereby exerting its role in preventing miscarriage.
10.Application of MoCA scale in early postoperative cognitive function of patients with aneurysmal subarachnoid hemorrhage
Qiongshuang HU ; Dongmei LI ; Jiajia YANG ; Zhenzhen XU
China Modern Doctor 2024;62(3):87-92
Objective To explore the application of the Montreal cognitive assessment(MoCA)scale in the early postoperative cognitive function of patients with aneurysmal subarachnoid hemorrhage(aSAH).Methods The clinical data of 181 patients with aSAH hospitalized in Department of Neurosurgery,First Affiliated Hospital of Wenzhou Medical University from November 2021 to May 2022 were collected,and the scores of each dimension of the patients were evaluated using MoCA scale;Using gender,age,educational level,hypertension,responsible aneurysm diameter,Hunt-Hess grade,and surgical method as variables,the relationship between these factors and the scores of each dimension of the MoCA scale was studied.Logistic regression was used to analyze the influencing factors of low score dimensions and postoperative cognitive function.Results 61 cases(36.31%)had normal cognitive function(≥26 points).The results of multifactorial analysis of language dimensions showed that there was a statistically significant difference in the comparison of educational background,age,surgical method,Hunt-Hess grade,and the presence or absence of cognitive dysfunction(P<0.05);The results of multifactor analysis of delayed memory showed that there was a statistically significant difference in the occurrence of cognitive dysfunction among educational background,Hunt-Hess classification,alcoholism,family history of stroke,and surgical methods(P<0.05).Conclusion The incidence of early postoperative cognitive dysfunction in patients with aSAH is high;The scores of language and delayed memory were the lowest;Low cultural background,advanced age,craniotomy methods,and high Hunt-Hess scores are more likely to cause damage to language and delayed memory dimensions.


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