1.Association between TCF7L2 rs290487 gene polymorphism and the hypoglycaemic efficacy of exenatide
Yibing ZHANG ; Yuhan HUANG ; Yanan YU ; Tingting ZHOU ; Yixi WU ; Xiaotong WANG ; Tao WANG
Chinese Journal of Clinical Pharmacology and Therapeutics 2025;30(3):374-384
AIM:To examine the impact of the transcription factor 7 analogue 2(TCF7L2)gene polymorphism on the hypoglycaemic effect of ex-enatide in patients with type 2 diabetes mellitus(T2DM).METHODS:A total of 100 newly diagnosed Han Chinese patients with T2DM who had not re-ceived any drug treatment were selected from the Affiliated Hospital of Xuzhou Medical University and treated with exenatide monotherapy for 6 months.The TCF7L2 rs290487 was genotyped by SnaPshot method,and blood glucose levels,lipids profiles and pancreatic function evaluation indica-tors were measured at baseline,3 months and 6 months after exenatide treatment.Multiple linear regression analysis was employed to assess the cor-relation between each indicator and the reduction in glycated hemoglobin(HbA1c)levels after 6 months of exenatide treatment.The expression of TCF7L2 protein in the plasma of T2DM patients was detected by enzyme-linked immunosorbent assay(ELISA)kit.Furthermore,western blotting was con-ducted to ascertain TCF7L2 expression in pancreat-ic tissues obtained from db/db mice and INS-1 cells cultured under high glucose conditions.Lentivirus transfection was used to overexpress or knock down TCF7L2 in insulinoma cell line(INS-1)cells,followed by measurement of KSIS activity and insu-lin content after a 24-hour intervention with exena-tide.RESULTS:The distribution pattern of TCF7L2 rs290487 was found to be in accordance with Har-dy-Weinberg equilibrium(P>0.05).Following 6 months of exenatide treatment,there was a nota-ble reduction in blood glucose levels and an im-provement in lipid profiles when compared to base-line values.Additionally,there was a significant in-crease in the homeostasis model assessment of be-ta-cell function(HOMA-B)values.Patients with the TT genotype exhibited significantly lower postpran-dial plasma glucose(PPG)levels and HbA1c values compared to those with the CC or CT genotypes(P<0.05).After adjusting for age,gender,body mass in-dex(BMI),and waist to hip ratio(WHR)in the mul-tiple linear regression model,a significant associa-tion was observed between the rs290487 TT geno-type,baseline HbA1c levels,and family history of diabetes with the reduction in HbA1c after six months of exenatide treatment(P<0.05).Further-more,individuals with the rs290487 TT genotype demonstrated a notable elevation in TCF7L2 expres-sion in plasma among T2DM patients in comparison to those with the CC genotype(P<0.05).In particu-lar,pancreatic tissue from db/db mice exhibited markedly elevated TCF7L2 expression compared to db/m mice.However,this up-regulation was re-versed by exenatide treatment.Similarly,INS-1 cells cultured under high glucose conditions dem-onstrated an increase in TCF7L2 expression,which was ameliorated upon exenatide administration.The knockdown of TCF7L2 using shRNA enhanced the KSIS function of pancreatic β cells and aug-mented the insulinotropic effect of exenatide.Con-versely,the upregulation of TCF7L2 impaired the KSIS function of pancreatic β cells and attenuated the insulinotropic effect of exenatide.CONCLU-SION:The TCF7L2 rs290487 gene polymorphism is closely associated with the hypoglycaemic efficacy of exenatide therapy.The risk allele C may diminish the effectiveness of exenatide by impacting the lev-els of PPG and HbA1c in T2DM patients.The muta-tion at TCF7L2 rs290487 site(C→T)influenced the expression of TCF7L2 protein.By exerting its regula-tory effect,exenatide may be capable of regulating the impact of TCF7L2 on the function of pancreaticβ cells.
2.Analysis of an investigation on reasons for subjects screening failure and exploration of influencing factors in clinical trial in healthy volun-teersin phase Ⅰ clinical trials
Junlin CHENG ; Runze QIU ; Yunfang HU ; Jianghui LIU ; Hongwei FAN
Chinese Journal of Clinical Pharmacology and Therapeutics 2025;30(6):804-811
AIM:To analyze the reasons for screening failure and explore the influencing fac-tors in clinical trial in healthy volunteers,guidance was provided to improve the success rate of screen-ing in the future.clarify the reasons for the failure in healthy subjects(HS)screening,and to provide guidance for screening in phase Ⅰ clinical trials.METHODS:We performed a retrospective study that described the process of HS screening in phase Ⅰ clinical trials carried out in department of clinical pharmacology lab,Nanjing First Hospital be-tween 2019 and 2022.We analyzed the reasons for screening failure and their impact on the failure rate.A retrospective analysis was conducted on the data of subjects who participated in drug clinical trial screening 2019 to 2022.The reasons for screening failure were analyzed,and statistical methods were used to explore the independent factors that led to screening failure.RESULTS:A to-tal of 11 clinical trials were included in this study,and 502 out of 1 582 participants(31.7%)passed the screening.The analysis of the remaining 1 080 subjects showed that the items that did not pass the screening were laboratory examinations(631 cases,58.4%),abnormal vital signs results(228 cas-es,21.1%),intolerance to blood drawn(86 cases,8.0%),sufficient subjects(62 cases,5.7%),with-drawal at the screening(54 cases,5.0%),demogra-phy(54 cases,5.0%),urinary cotinine examination(42 cases,3.9%),imaging examination(31 cases,2.9%),electrocardiogram(24 cases,2.2%),inquiry(medical inquiry 19 cases,1.8%,smoking inquiry 2 cases,0.2%,alcohol inquiry 2 cases,0.2%)and identity verification(17 cases,1.8%).In the popula-tion with a body mass index(BMI)of 19.0 to 26.0,an increase in BMI is an independent factor signifi-cantly associated with screening failure(P<0.000 1,OR=0.890 4,95%CI 0.841 9-0.941 3).The impact of different examination items on the screening fail-ure rate varies.CONCLUSION:In clinical trials of healthy subjects,laboratory tests,vital signs and in-tolerance to blood drawn are the main reasons for screening failure.Lowering the upper limit of BMI when recruiting subjects may increase the success rate of screening.Laboratory examinations,vital signs,intolerance to blood drawn are the most im-portant three reasons for screening failure,and im-provements can be made to reduce the screening failure rate of phase Ⅰ clinical trials in response to the main screening failure reasons.
3.Short-chain fatty acids modulate the role of NLRP3 inflammatory ves-icle pathway in CKD and the progress of traditional Chinese medicine intervention
Zitian GAO ; Yu CHEN ; Haidong HE ; Yuyan TANG
Chinese Journal of Clinical Pharmacology and Therapeutics 2025;30(6):812-819
The regulation of gut flora metabo-lites-short-chain fatty acids(SCFAs),NLRP3 inflam-matory vesicles,and interactions has been shown to play a key role in many diseases.While chronic kidney disease(CKD)is a common progressive dis-ease whose pathogenesis is related to the reduc-tion of SCFAs,a metabolite of intestinal flora,and the over-activation of NLRP3 inflammatory vesicles.In this paper,we summarize the role of SCFAs and NLRP3 inflammatory pathway in the pathogenesis of CKD,and sort out the research on the interven-tion of traditional Chinese medicine(TCM)in this inflammatory pathway in the treatment of CKD in recent years,so as to provide the direction and ideas for the exact mechanism of TCM in the treat-ment of CKD.
4.Targeting ferroptosis offers a novel therapeutic approaches in epilepsy
Chinese Journal of Clinical Pharmacology and Therapeutics 2025;30(6):828-834
Epilepsy is sudden,recurrent,and transient central nervous system dysfunction caused by abnormal discharge of neurons in the brain.Recurrent or prolonged seizures can result in neuronal damage and cell death;however,the mo-lecular mechanisms underlying the epilepsy-in-duced damage to neurons remain unclear.Ferrop-tosis,a novel type of regulated cell death(RCD)characterized by iron-dependent lipid peroxidation,is involved in the pathophysiological progression of epilepsy.Emerging studies have demonstrated pharmacologically inhibiting ferroptosis can miti-gate neuronal damage in epilepsy.In this review,we briefly describe the core molecular mechanisms of ferroptosis and the roles they play in contribut-ing to epilepsy,highlight emerging compounds that can inhibit ferroptosis to treat epilepsy and associ-ated neurobehavioral comorbidities,and outline their pharmacological beneficial effects.The cur-rent review suggests inhibiting ferroptosis as a ther-apeutic target for epilepsy and associated neurobe-havioral comorbidities.
5.Research progress on differential improvement and mechanism of nucleoside analogues or nucleotide analogues in HBV-related hepato-cellular carcinoma
Menghan JIN ; Suwen JIANG ; Airong HU ; Ken LIN ; Ying FAN ; Jialan WANG ; Haojin ZHANG
Chinese Journal of Clinical Pharmacology and Therapeutics 2025;30(6):835-848
Hepatitis B virus(HBV)infection is the main risk factor for the development and progres-sion of hepatocellular carcinoma(HCC).Through re-peated inflammatory stimulation,liver cells regen-eration,fibrosis,and scar formation,it may eventu-ally progress to HCC.Antiviral treatment reduces the incidence of HBV-related HCC and the risk of postoperative recurrence by reducing HBV DNA lev-el,thereby improving prognosis.Many recent stud-ies have found that different kinds of nucleos(t)ide analogues(NAs)may have differential improve-ments in the prevention of HBV-related HCC occur-rence and postoperative recurrence.This article re-views the differential improvement of different cat-egories of NAs in HBV-related HCC and the possible mechanisms.
6.Age,blood eosinophils,FeNO and serum IgE as biomarkers for the prediction of eosinophilic phenotype among asthmatic patients
Jiameng GAO ; Yuan MA ; Yao SHEN ; Fang WANG ; Yuhao QIAN ; Zhihong CHEN
Chinese Journal of Clinical Pharmacology and Therapeutics 2025;30(5):631-639
AIM:To identify surrogate clinical bio-markers for profiling the eosinophilic status of an individual patient over induced sputum analysis.METHODS:We conducted a cross-sectional study on 100 asthmatic patients whose induced sputum was successfully collected.Subjects were further classified into either EA or NEA based on whether the percentage of sputum eosinophil count(SEC%)was≥3%.Demographic and clinical data were col-lected,including basic information,routine blood tests,lung function tests,bronchodilator reversibili-ty tests,fractional exhaled nitric oxide(FeNO),the Asthma Control Test(ACT)and the Asthma Control Questionnaire(ACQ).All variables significantly asso-ciated with EA were candidates for multivariate lo-gistic regression analysis.A scoring system present-ed as a nomogram for the prediction of EA was de-veloped.RESULTS:In the univariate analysis,com-pared with NEA subjects,those with EA were of older age and had worse asthma control and lung function in addition to higher values of blood eosin-ophils,serum IgE and FeNO.Multivariable logistic regression analysis revealed that age,FeNOx serum IgE and blood eosinophil count(BEC)were identi-fied as independent risk factors for eosinophilic asthma,which were all included in the nomogram.CONCLUSION:A combination assessment including age,FeNOx serum IgE and BEC could be applicable to clinicians in identifying eosinophilic asthma and is easier,faster,more inexpensive and more readily available than the induced sputum test.
7.Comparing the efficacy and safety of cyclophosphamide and ritux-imab in idiopathic membranous nephropathy
Shan WU ; Qi YU ; Qin YANG ; Wenjing WANG ; Yangyang ZHANG ; Yan LIU ; Yanlang YANG
Chinese Journal of Clinical Pharmacology and Therapeutics 2025;30(5):657-664
AIM:To explore the efficacy and safe-ty of two drugs in diagnosed idiopathic membra-nous nephropathy(IMN).METHODS:A retrospec-tive study was conducted on 113 patients diag-nosed with IMN by renal biopsy or PLA2R antibody positive at the department of nephrology,yijishan hospital,wannan medical college from november 2019 to July 2024,of whom 55 received cyclophos-phamide treatment and 58 received rituximab treatment,and follow-up was ≥6 months.RESULTS:At 6 months,38 patients(69.09%)in the cyclophos-phamide treatment group and 36 patients(62.07%)in the rituximab treatment group had achieved a combined response(complete or partial response).At 12 and 18 months,there was no statistical differ-ence in the combined response rate between the two groups(70.83%vs.83.87%,P=0.186 and 73.68%vs.73.68%,P=1.000),but at 12 months,the combined response rate in the rituximab group was higher than that in the cyclophosphamide group.In IMN patients with eGFR<60 mL/(min·1.73 m2),rituximab significantly improved renal function(P=0.008).Over the entire follow-up peri-od,the total number of adverse events was higher in the cyclophosphamide group than in the ritux-imab group(57 vs..45),and the incidence of non-serious adverse events was higher than in the ritux-imab group(P=0.039).CONCLUSION:The efficacy of rituximab in the treatment of IMN is not inferior to that of cyclophosphamide,and it has better safety.Rituximab improved renal function better than cy-clophosphamide in patients with eGFR<60 mL/(min·1.73 m2)IMN.
8.Targeting the cGAS-STING pathway for the treatment of ischemic stroke
Qingfang QIAN ; Wenjing LI ; Qiang LI
Chinese Journal of Clinical Pharmacology and Therapeutics 2025;30(5):690-694
Ischemic stroke is a devastating neuro-logical disease worldwide,with high global burden.The microglial activation-driven neuroinflammation plays a critical role in pathophysiology of ischemic stroke.After the ictus of brain ischemic attack,cy-tosolic double-stranded DNA(dsDNA)released by necrotic neuronal cells is a potential damage-asso-ciated molecular pattern(DAMP)to activate cyclic GMP-AMP synthase(cGAS)-stimulator of interferon genes(STING)signaling pathway.cGAS-STING sig-naling pathway has emerged as a key player in mi-croglial activation,sterile neuroinflammation,and cell death following ischemic stroke.Targeting this pathway holds promise for developing novel thera-peutics that effectively mitigate neuroinflamma-tion,prevent cell death,and enhance patient out-comes.In this review,we first outline the principal elements of the cGAS-STING signaling cascade,then discusses the pivotal role of the cGAS-STING pathway in ischemic stroke.Then,we outline selec-tive small-molecules modulators that function as cGAS-STING inhibitors and summarize their mecha-nisms to treat Ischemic stroke.Finally,we discuss key limitations of the current therapeutic paradigm and generate possible strategies to overcome them.
9.Advances in pharmacokinetics of isavuconazole in special population
Jingxian XIE ; Jianjun DU ; Lu CHEN ; Lijuan ZHANG ; Yong YANG
Chinese Journal of Clinical Pharmacology and Therapeutics 2025;30(5):709-713
Isavuconazole represents a novel gen-eration of triazole antifungal agents for the treat-ment of invasive trichothecenes in adults.The phar-macokinetic profile of isavuconazole differs in spe-cial populations,including children,patients with ex-tracorporeal membrane oxygenation,those with he-patic or renal injury,patients undergoing blood puri-fication,and critically ill individuals and solid organ transplant recipients.These differences impact the safety and efficacy of patient treatment.This article presents the latest progress in the pharmacokinetic study of isavuconazole in these special populations.
10.Clinical research progress of efgartigimod in the treatment of general-ized myasthenia gravis
Shu LIU ; Chunhui SUN ; Zhirong TAN ; Man XING
Chinese Journal of Clinical Pharmacology and Therapeutics 2025;30(5):714-720
Myasthenia gravis(MG)is a chronic autoimmune disease that causes partial or system-ic skeletal muscle weakness and fatigue.Efgartigi-mod is an antibody fragment targeting the Fc re-ceptor in newborns,which clears pathogenic immu-noglobulin G antibodies through a unique mecha-nism.Efgartigimod is used to treat systemic myas-thenia gravis safely and efficiently,which can signif-icantly improve muscle strength and quality of life for patients.This article reviews pharmacological,clinical research,and safety of efgartigimod,in or-der to providing reference for its clinical treatment in systemic myasthenia gravis(gGM).

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