1.Study on the relationship between UGT1A1 polymorphism and UGT1A1 inhibitory drugs-induced liver injury
Yujia LU ; Keying OU ; Yueyang MA ; Chuansu YUAN ; Bin LIU ; Yongfeng YANG ; Qingfang XIONG
The Journal of Practical Medicine 2025;41(4):588-593
Objective To investigate the association between UGT1A1 inhibitors-induced liver injury(DILI)and UGT1A1 gene polymorphisms through a pharmacogenomics approach.Methods Information on relevant drugs that may induce liver injury,blood routine tests,and liver function tests was collected from hospitalized patients diagnosed with DILI between June 2022 and June 2024.Relevant databases were searched to categorize DILI-associated drugs into UGT1A1 enzyme inhibitors and those without interaction with UGT1A1.Sanger sequenc-ing or MassARRAY SNP typing technology was utilized to detect and genotype the UGT1A1 gene.Results A total of 219 patients with drug-induced liver injury(DILI)were enrolled,including 98 males,with a mean age of 46.32±14.95 years.A literature search of relevant databases revealed that 20 drugs(16.26%,20/123)associated with DILI had inhibitory effects on the UGT1A1 enzyme.The proportion of DILI cases related to UGT1A1 inhibitors was 60.73%(133/219).Compared to non-UGT1A1 inhibitor-related DILI group,the UGT1A1 inhibitor-related DILI group exhibited significantly higher levels of ALT,AST,ALP,and GGT(P<0.05),while no significant differences were observed in age,gender,TBIL,IBIL,WBC,Hb,PLT,injury type,or injury grade(P>0.05).The prevalence of UGT1A1 polymorphisms was significantly higher in the UGT1A1 inhibitor-related DILI group(68.42%)com-pared to the non-UGT1A1 inhibitor-related DILI group(51.16%),with an odds ratio(OR)of 2.068(95%CI:1.183 to 3.617;χ2=6.58,P=0.010).There was also a significant difference in the distribution of genotypes between the UGT1A1 inhibitor-related and non-UGT1A1 inhibitor-related DILI groups(χ2=9.60,P=0.022).Univariate logistic regression analysis indicated that ALT and UGT1A1*6 were associated with UGT1A1 inhibitor-related DILI,while multivariate analysis confirmed that UGT1A1*6 was independently associated with UGT1A1 inhibitor-related DILI[OR(95%CI)=3.143(1.398 to 7.067),P=0.006].Conclusion The UGT1A1*6 allele increases the susceptibility to drug-induced liver injury(DILI)associated with UGT1A1 inhibitory drugs.
2.Role of nitric oxide synthase in the pathogenesis of Alzheimer's disease
Keying JIANG ; Ying LIU ; Jiaying LIU ; Jingyi LI ; Zhikui WU ; Meiwen YANG ; Fenfang HONG ; Shulong YANG
Chinese Journal of Comparative Medicine 2025;35(6):151-158
Nitric oxide synthase(NOS)and its product nitric oxide are involved in learning and memory functions.Increasing evidence shows that NOS plays an important role in the pathogenesis of Alzheimer's disease,influencing β-amyloid protein(Aβ)deposition,neuroinflammation,oxidative stress,abnormal microglia activation,synapse damage,autophagy,abnormal mitochondrial function of nerve cells,and cerebral hypoperfusion or vascular endothelial cell injury.This review summarizes the recent evidence for the role of NOS in the pathogenesis of Alzheimer's disease and provides new feasible targets for the prevention and treatment of Alzheimer's disease.
3.Correlations between post-doctoral talent cultivation and high-quality development of public hospitals
Ning HUANG ; Keying WANG ; Jialing CHEN ; Huilin FU ; Weixin LIU
Modern Hospital 2025;25(2):322-325
Objective To explore the role of postdoctoral talent cultivation in high-quality development of public hospi-tals.Methods The data of 165 postdoctoral fellows were analyzed from Zhongshan Ophthalmology Center,Sun Yat-sen Univer-sity over the past decade.The analysis involved examining the entire management process from recruitment to completion,inclu-ding the improvement of relevant systems,evaluation standards,implementation of hierarchical management,mentor-student in-teractions,and academic exchanges,as well as studying the quality enhancement of the postdoctoral talent pool,research output,and employment analysis.Results The standardized management of whole postdoctoral cultivation process and the continuous improvement of systems significantly enhanced the achievements of postdoctoral fellows in research,publications,and commer-cialization of the scientific and research findings.For instance,from 2018 to 2022,the number of National Science Foundation-funded programs that the postdoctoral fellows obtained accounted for 26.7%of the total number,while the number of provincial and ministerial funded programs accounted for 73.3%.In 2020,the proportion of postdoctoral researchers who obtained the Na-tional Natural Science Foundation of China's Youth Program was 80%of the total.In 2021,the proportion of postdoctoral fellows who published papers with an impact factor of above 10 as the first author or co-first author was 45.83%.Conclusion The training of high-level medical postdoctoral talents is crucial for high-quality development of public hospitals,improving interdisci-plinary adaptability of postdoctoral fellows and collaborative mentorship awareness.
4.Correlations between post-doctoral talent cultivation and high-quality development of public hospitals
Ning HUANG ; Keying WANG ; Jialing CHEN ; Huilin FU ; Weixin LIU
Modern Hospital 2025;25(2):322-325
Objective To explore the role of postdoctoral talent cultivation in high-quality development of public hospi-tals.Methods The data of 165 postdoctoral fellows were analyzed from Zhongshan Ophthalmology Center,Sun Yat-sen Univer-sity over the past decade.The analysis involved examining the entire management process from recruitment to completion,inclu-ding the improvement of relevant systems,evaluation standards,implementation of hierarchical management,mentor-student in-teractions,and academic exchanges,as well as studying the quality enhancement of the postdoctoral talent pool,research output,and employment analysis.Results The standardized management of whole postdoctoral cultivation process and the continuous improvement of systems significantly enhanced the achievements of postdoctoral fellows in research,publications,and commer-cialization of the scientific and research findings.For instance,from 2018 to 2022,the number of National Science Foundation-funded programs that the postdoctoral fellows obtained accounted for 26.7%of the total number,while the number of provincial and ministerial funded programs accounted for 73.3%.In 2020,the proportion of postdoctoral researchers who obtained the Na-tional Natural Science Foundation of China's Youth Program was 80%of the total.In 2021,the proportion of postdoctoral fellows who published papers with an impact factor of above 10 as the first author or co-first author was 45.83%.Conclusion The training of high-level medical postdoctoral talents is crucial for high-quality development of public hospitals,improving interdisci-plinary adaptability of postdoctoral fellows and collaborative mentorship awareness.
5.Study on the relationship between UGT1A1 polymorphism and UGT1A1 inhibitory drugs-induced liver injury
Yujia LU ; Keying OU ; Yueyang MA ; Chuansu YUAN ; Bin LIU ; Yongfeng YANG ; Qingfang XIONG
The Journal of Practical Medicine 2025;41(4):588-593
Objective To investigate the association between UGT1A1 inhibitors-induced liver injury(DILI)and UGT1A1 gene polymorphisms through a pharmacogenomics approach.Methods Information on relevant drugs that may induce liver injury,blood routine tests,and liver function tests was collected from hospitalized patients diagnosed with DILI between June 2022 and June 2024.Relevant databases were searched to categorize DILI-associated drugs into UGT1A1 enzyme inhibitors and those without interaction with UGT1A1.Sanger sequenc-ing or MassARRAY SNP typing technology was utilized to detect and genotype the UGT1A1 gene.Results A total of 219 patients with drug-induced liver injury(DILI)were enrolled,including 98 males,with a mean age of 46.32±14.95 years.A literature search of relevant databases revealed that 20 drugs(16.26%,20/123)associated with DILI had inhibitory effects on the UGT1A1 enzyme.The proportion of DILI cases related to UGT1A1 inhibitors was 60.73%(133/219).Compared to non-UGT1A1 inhibitor-related DILI group,the UGT1A1 inhibitor-related DILI group exhibited significantly higher levels of ALT,AST,ALP,and GGT(P<0.05),while no significant differences were observed in age,gender,TBIL,IBIL,WBC,Hb,PLT,injury type,or injury grade(P>0.05).The prevalence of UGT1A1 polymorphisms was significantly higher in the UGT1A1 inhibitor-related DILI group(68.42%)com-pared to the non-UGT1A1 inhibitor-related DILI group(51.16%),with an odds ratio(OR)of 2.068(95%CI:1.183 to 3.617;χ2=6.58,P=0.010).There was also a significant difference in the distribution of genotypes between the UGT1A1 inhibitor-related and non-UGT1A1 inhibitor-related DILI groups(χ2=9.60,P=0.022).Univariate logistic regression analysis indicated that ALT and UGT1A1*6 were associated with UGT1A1 inhibitor-related DILI,while multivariate analysis confirmed that UGT1A1*6 was independently associated with UGT1A1 inhibitor-related DILI[OR(95%CI)=3.143(1.398 to 7.067),P=0.006].Conclusion The UGT1A1*6 allele increases the susceptibility to drug-induced liver injury(DILI)associated with UGT1A1 inhibitory drugs.
6.Role of nitric oxide synthase in the pathogenesis of Alzheimer's disease
Keying JIANG ; Ying LIU ; Jiaying LIU ; Jingyi LI ; Zhikui WU ; Meiwen YANG ; Fenfang HONG ; Shulong YANG
Chinese Journal of Comparative Medicine 2025;35(6):151-158
Nitric oxide synthase(NOS)and its product nitric oxide are involved in learning and memory functions.Increasing evidence shows that NOS plays an important role in the pathogenesis of Alzheimer's disease,influencing β-amyloid protein(Aβ)deposition,neuroinflammation,oxidative stress,abnormal microglia activation,synapse damage,autophagy,abnormal mitochondrial function of nerve cells,and cerebral hypoperfusion or vascular endothelial cell injury.This review summarizes the recent evidence for the role of NOS in the pathogenesis of Alzheimer's disease and provides new feasible targets for the prevention and treatment of Alzheimer's disease.
7.Huaiqihuang Granules Affect Differentiation of Th17 Cells in IgA Vasculitis Nephritis Mice by Regulating AMPK/ACC Pathway
Xinglan YE ; Keying LI ; Jiaxuan LI ; Juan BAI ; Wencheng XU ; Hong LIU ; Xue XUE
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(11):78-86
ObjectiveTo observe the intervention effect of Huaiqihuang granules (HQH) on immunoglobulin A vasculitis nephritis (IgAVN) mice and explore the underlying therapeutic mechanism. MethodFifty SPF-grade male Kunming mice were randomly divided into a normal group, an IgAVN model group, a dexamethasone group (2.5 mg·kg-1·d-1), a low-dose HQH group (4 g·kg-1·d-1), and a high-dose HQH group (8 g·kg-1·d-1). The mouse model was established using oral administration of gliadin combined with intravenous injection of India ink. After successful modeling, the mice were euthanized after 4 weeks of gastric gavage according to groups. The 24 h urinary total protein (24 h UTP), urine β2-microglobulin (β2-MG), serum total protein, albumin, IgA, etc. were detected in each group. Flow cytometry was used to determine the proportion of T helper 17 (Th17) cells in spleen cell suspension. Western blot was employed to detect the expression of adenosine 5'-monophosphate-activated protein kinase α (AMPKα), phosphorylated AMPKα (p-AMPKα), acetyl-CoA carboxylase 1 (ACC1), and phosphorylated ACC1 (p-ACC1) in Th17 cells. Pathological changes in the spleen and kidneys were observed. ResultCompared with the normal group, the IgAVN model group showed significant increases in 24 h UTP, urine β2-MG, total cholesterol (P<0.05), serum interleukin-17 (IL-17), IgA, Th17 proportion in the spleen cell suspension, and IL-17 expression in the spleen tissue (P<0.01), and significantly decreased serum total protein, albumin, p-AMPKα/AMPKα, and p-ACC1/ACC1 expression of Th17 cells (P<0.01). Compared with the IgAVN model group, in the 4th week, the 24 h UTP, urine β2-MG, serum IL-17, IgA levels, and renal IgA deposition were significantly reduced in each treatment group (P<0.01), and the Th17 proportion and IL-17 expression in spleen tissue were significantly decreased (P<0.05, P<0.01). Serum albumin levels significantly increased (P<0.05). Compared with the IgAVN model group, the dexamethasone group and the high-dose HQH group showed increases in serum total protein (P<0.01), p-AMPKα/AMPKα, and p-ACC1/ACC1 expression of Th17 cells (P<0.05, P<0.01). The high-dose HQH group showed a significant decrease in total cholesterol level (P<0.05). Various treatment groups showed different degrees of improvement in spleen and kidney pathological changes. ConclusionHQH may affect Th17 cell differentiation by regulating the AMPK/ACC pathway, correcting immune inflammatory disorders, and exerting therapeutic effects on IgAVN.
8.ROS-removing nano-medicine for navigating inflammatory microenvironment to enhance anti-epileptic therapy.
Zheng ZHOU ; Keying LI ; Yongchao CHU ; Chao LI ; Tongyu ZHANG ; Peixin LIU ; Tao SUN ; Chen JIANG
Acta Pharmaceutica Sinica B 2023;13(3):1246-1261
As a neurological disorder in the brain, epilepsy is not only associated with abnormal synchronized discharging of neurons, but also inseparable from non-neuronal elements in the altered microenvironment. Anti-epileptic drugs (AEDs) merely focusing on neuronal circuits frequently turn out deficient, which is necessitating comprehensive strategies of medications to cover over-exciting neurons, activated glial cells, oxidative stress and chronic inflammation synchronously. Therefore, we would report the design of a polymeric micelle drug delivery system that was functioned with brain targeting and cerebral microenvironment modulation. In brief, reactive oxygen species (ROS)-sensitive phenylboronic ester was conjugated with poly-ethylene glycol (PEG) to form amphiphilic copolymers. Additionally, dehydroascorbic acid (DHAA), an analogue of glucose, was applied to target glucose transporter 1 (GLUT1) and facilitate micelle penetration across the blood‒brain barrier (BBB). A classic hydrophobic AED, lamotrigine (LTG), was encapsulated in the micelles via self-assembly. When administrated and transferred across the BBB, ROS-scavenging polymers were expected to integrate anti-oxidation, anti-inflammation and neuro-electric modulation into one strategy. Moreover, micelles would alter LTG distribution in vivo with improved efficacy. Overall, the combined anti-epileptic therapy might provide effective opinions on how to maximize neuroprotection during early epileptogenesis.
9.Investigation and analysis of smoking behaviour of civil servants in Minhang District, Shanghai
Weiqing GUO ; Keying DING ; Jian WANG ; Hui CHEN ; Jing LUAN ; Zhilian LIU ; Tao LIU ; Jiajie WU ; Qinwen YANG
Journal of Environmental and Occupational Medicine 2022;39(1):47-52
Background The tobacco epidemic as one of the most serious public health problems in the world contributes great harm to human health. It is urgent to develop tobacco control strategy. Civil servants' behaviors as a role model for society have a great influence on the rest of society. Thus, it is important to promote tobacco control program on helping civil servants to quit smoking. Objective To understand the smoking and second-hand smoking exposures status, the awareness of knowledge of tobacco hazards, and the attitudes to tobacco control policies of civil servants in Minhang District, Shanghai. Furthermore, to explore the related strategies and measures for tobacco control, to provide a basis for the development and revision of relevant intervention measures and policies. Methods A total of 20 government agencies with newly installed smoking-free programs from 10 subdistricts and towns in Minhang District, including Xinzhuang, Wujing, Maqiao, Qibao, Meilong, Hongqiao, Zhuanqiao, Jiangchuan, Gumei, and Xinhong were selected as study sites.A questionnaire survey was conducted to investigate all civil servants (n=801) of selected agencies. The questionnaire included general characteristics, smoking and second-hand smoking exposure status, knowledge of tobacco hazard, and attitudes to tobacco control policies. Results A total of 794 civil servants returned valid questionnaires. The awareness rate of tobacco hazards in the smoking group was lower than that in the non-smoking group (P<0.05). Relatively high smoking rates were reported in those being male (17.08%), age ≥51 years old (25.61%), divorced or widowed (12.50%), technical secondary school or below education level (22.81%), having more than 10 years of working years (11.57%), being willing to dissuade indoor smoking (24.54%), having no punishment or warning measures for violation of smoking regulations in workplaces (18.37%), and having no dedicated smoking spot at home (15.38%). The results of multiple logistic regression analysis showed that age 31-40 years old (OR=3.446, 95%CI: 1.236-9.609) and to avoid confronting indoor smoking (OR=3.686, 95%CI: 1.041-13.049) were risk factors for smoking in civil servants. Conclusion Civil servants aged 31-40 years old who deliberately avoid confronting indoor smoking behaviors are the key intervention population of smoking control in Minhang District, Shanghai.
10.Associations between circulating bone-derived hormones osteocalcin, lipocalin 2, and glucose metabolism in patients with acromegaly
Yan ZHANG ; Mengsi LIU ; Keying ZHU ; Wenhuan FENG ; Hong HUANG ; Dalong ZHU ; Ping LI
Chinese Journal of Endocrinology and Metabolism 2020;36(3):246-252
Objective:The aim of this study was to examine the change of serum bone-derived hormones osteocalcin and lipocalin 2 (LCN2) level in patients with active acromegaly, and to further investigate the potential role of osteocalcin and LCN2 in glucose metabolism.Methods:Fifty consecutive patients diagnosed as acromegaly in Nanjing Drum Tower Hospital from December 2016 to August 2018 were recruited. Of those, 41 patients after operations with complete follow-up data were also included. 30 sex, age, and body mass index matched healthy persons as normal controls. Serum osteocalcin and LCN2 levels were compared between controls and patients with acromegaly, as well as at pre- and post- operation periods. Univariate and multivariate linear regression analyses were used to investigate the correlation between bone-derived hormones and glucose metabolism indexes and to determine the independent associations between variables.Results:Compared with normal controls, serum osteocalcin increased [(55.45±34.02 vs 19.46±6.69)ng/ml, P<0.01] and LCN2 levels decreased [(34.15±9.95 vs 57.50±29.75)ng/ml, P<0.01] in patients with acromegaly. Homeostasis model assessment for insulin resistance (HOMA-IR) was also elevated ( P<0.01), but homeostasis model assessment for β cell function (HOMA-β) and area under curve of insulin during 0-120 min of the oral glucose tolerance test (AUC INS) changed non-significantly in acromegaly compared to normal controls ( P>0.05). After operation, with the decrease of serum growth hormone (GH) and insulin-like growth factor 1 (IGF-1), serum osteocalcin level decreased [24.79(18.39, 32.59) vs 43.51(26.73, 65.66)ng/ml, P<0.01] and LCN2 level increased [(45.15±15.33 vs 37.03±9.73)ng/ml, P<0.05] significantly compare to pre-operation levels. In a multivariate linear stepwise regression analysis, lean mass was shown to be the only positive predictor for LCN2 ( β=0.44, P=0.015) and elevated serum IGF-1 was a positive predictor for osteocalcin ( β=0.512, P<0.01). In the multivariate models, low LCN2 ( β=-0.398, P=0.017) and elevated serum osteocalcin ( β=0.553, P=0.001) were predictors for AUC INS, osteocalcin was a positive predictor of HOMA- β ( β=0.519, P=0.004). GH ( β=0.294, P=0.029) and IGF-1( β = 0.428, P=0.002) were all identified as positive predictors of HOMA-IR during multivariate testing in acromegaly patients. Conclusions:Acromegaly patients had increased osteocalcin and decreased LCN2 serum levels, and corresponding alteration was detected with the correction of biochemical abnormalities. Serum osteocalcin and LCN2 were predictors of β-cell function in acromegaly patients. This study adds new evidence for the role of bone in regulating glucose metabolism in acromegaly.

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