1.Expert consensus on the model informed precision dosing of tacroli-mus in patients receiving anti-rejection therapy
Bing CHEN ; Xiaocong ZUO ; Xingang LI ; Dewei SHANG ; Peijun ZHOU ; Junjie DING ; Xiaoq-iang XIANG ; Xiaoyan QIU ; Zhuo WANG ; Xiaoyu LI ; Yi ZHANG ; Wei ZHAO ; Yuzhu WANG ; Jianjun GAO ; Zheng JI-AO
Chinese Journal of Clinical Pharmacology and Therapeutics 2025;30(4):433-445
There is significant inter-individual variation of pharmacokinetics and pharmacody-namics in patients receiving tacrolimus(TAC)for an-ti-rejection therapy,which cause the rejection or toxic action.Based on results of therapeutic drug monitoring and pathophysiological index of trans-plant patients,the individualized dosing regimen can be designed and adjusted by using model in-formed precision dosing(MIPD).The patients'clini-cal outcome can be improved.In the consensus,the different methods of MIPD used for patients re-ceived TAC for anti-rejection therapy were intro-duced,which can be used for the designing and ad-justing doing regimen,predicting adverse drug reac-tion,improving medication adherence and econom-ics during therapy.
2.Isolation and identification of porcine pathogenic Escherichia coli and detection of virulence genes and analysis of drug resistance
Shuoqi LIU ; Ying LIU ; Ziwei MENG ; Jingwen ZHANG ; Jinghui FAN ; Yuzhu ZUO
Chinese Journal of Veterinary Science 2025;45(5):940-947
To understand the pathogenicity and drug resistance of swine-derived E.coli and its bio-logical characteristics in some areas in Hebei,E.coli was isolated and identified from diarrheal fe-ces of piglets collected from swine farms,and the isolated strains were subjected to drug sensitivity test,detection of the ability to form biofilm,pathogenicity test,virulence gene test,drug resistance gene test,and identification of phylogenetic subgroups.The results showed that a total of 35 patho-genic E.coli strains were isolated from the feces of diarrheic piglets,and most of the isolates were multidrug-resistant,and were resistant to at least three antibiotics,including amoxicillin(88.57%),ampicillin(88.57%),doxycycline(88.75%),sulfisoxazole(77.17%),lincomycin(100%),and chloramphenicol(100%);the isolates were severely resistant.The isolates all carried virulence genes,with a total of five virulence genes detected,namely,EAST1(77.14%),eaeA(17.14%),stx2e(5.71%),LT(2.86%),and STb(2.86%),and the isolates also carried multi-re-sistance genes,with a total of five virulence genes detected,namely,bla TEM-1(65.71%),bla CTX-M(20.00%),tetA(82.86%),tetB(14.29%),aadA2(17.14%),aac(6')-Ib(14.29%),qnrS(17.14%),sul 1(40.00%),sul2(34.29%),and floR(60.00%);the phylogenetic grouping showed that the isolates had a high proportion of group B1 and group A;and all 35 isolates showed differ-ent pathogenicity after infection of mice.This study provides a reference for the selection of effec-tive therapeutic drugs and the development of prevention and control programs for swine-origin pathogenic E.coli in Hebei Province.
3.Expert consensus on the model informed precision dosing of tacroli-mus in patients receiving anti-rejection therapy
Bing CHEN ; Xiaocong ZUO ; Xingang LI ; Dewei SHANG ; Peijun ZHOU ; Junjie DING ; Xiaoq-iang XIANG ; Xiaoyan QIU ; Zhuo WANG ; Xiaoyu LI ; Yi ZHANG ; Wei ZHAO ; Yuzhu WANG ; Jianjun GAO ; Zheng JI-AO
Chinese Journal of Clinical Pharmacology and Therapeutics 2025;30(4):433-445
There is significant inter-individual variation of pharmacokinetics and pharmacody-namics in patients receiving tacrolimus(TAC)for an-ti-rejection therapy,which cause the rejection or toxic action.Based on results of therapeutic drug monitoring and pathophysiological index of trans-plant patients,the individualized dosing regimen can be designed and adjusted by using model in-formed precision dosing(MIPD).The patients'clini-cal outcome can be improved.In the consensus,the different methods of MIPD used for patients re-ceived TAC for anti-rejection therapy were intro-duced,which can be used for the designing and ad-justing doing regimen,predicting adverse drug reac-tion,improving medication adherence and econom-ics during therapy.
4.Isolation and identification of porcine pathogenic Escherichia coli and detection of virulence genes and analysis of drug resistance
Shuoqi LIU ; Ying LIU ; Ziwei MENG ; Jingwen ZHANG ; Jinghui FAN ; Yuzhu ZUO
Chinese Journal of Veterinary Science 2025;45(5):940-947
To understand the pathogenicity and drug resistance of swine-derived E.coli and its bio-logical characteristics in some areas in Hebei,E.coli was isolated and identified from diarrheal fe-ces of piglets collected from swine farms,and the isolated strains were subjected to drug sensitivity test,detection of the ability to form biofilm,pathogenicity test,virulence gene test,drug resistance gene test,and identification of phylogenetic subgroups.The results showed that a total of 35 patho-genic E.coli strains were isolated from the feces of diarrheic piglets,and most of the isolates were multidrug-resistant,and were resistant to at least three antibiotics,including amoxicillin(88.57%),ampicillin(88.57%),doxycycline(88.75%),sulfisoxazole(77.17%),lincomycin(100%),and chloramphenicol(100%);the isolates were severely resistant.The isolates all carried virulence genes,with a total of five virulence genes detected,namely,EAST1(77.14%),eaeA(17.14%),stx2e(5.71%),LT(2.86%),and STb(2.86%),and the isolates also carried multi-re-sistance genes,with a total of five virulence genes detected,namely,bla TEM-1(65.71%),bla CTX-M(20.00%),tetA(82.86%),tetB(14.29%),aadA2(17.14%),aac(6')-Ib(14.29%),qnrS(17.14%),sul 1(40.00%),sul2(34.29%),and floR(60.00%);the phylogenetic grouping showed that the isolates had a high proportion of group B1 and group A;and all 35 isolates showed differ-ent pathogenicity after infection of mice.This study provides a reference for the selection of effec-tive therapeutic drugs and the development of prevention and control programs for swine-origin pathogenic E.coli in Hebei Province.
5.Oxidized lipoprotein(a)induces endothelial cell pyroptosis by inhibiting the expres-sion of cytochrome b
Zitong CAO ; Yanjun CHEN ; Shiming TAN ; Yuzhu RAO ; Jingjing WANG ; Zeming CAI ; Zuo WANG
Chinese Journal of Arteriosclerosis 2024;32(7):558-566
Aim To explore the mechanism of oxidized lipoprotein(a)(oxLp(a))inducing pyroptosis of vascu-lar endothelial cells.Methods After incubating human umbilical vein endothelial cells(HUVEC)with 100 mg/L ox-Lp(a)for 24 hours,Western blot and RT-qPCR was used to detect pyroptosis related proteins,pro-inflammatory cytokines,mitochondrial related proteins NRF1,NRF2,PGC-1α and mitochondrial gene cytochrome b(CYTB),ELISA was used to detect the levels of inflammatory factors,scanning electron microscopy was used to detect cell membrane rup-ture,transmission electron microscopy was used to detect mitochondrial morphology,Hoechst33342/PI staining was used to detect cell apoptosis,MitoSOX probe was used to detect mitochondrial reactive oxygen species(mtROS),Flu-4AM probe was used to detect calcium ions,JC-1 probe was used to detect mitochondrial membrane potential(MMP),and Calcein AM staining was used to detect mitochondrial permeability transition pore(mPTP).Transfecting HUVEC with CYTB overexpressing lentivirus and analyzing its effects on oxLp(a)induced pyroptosis and mitochondrial function.Results After treatment with oxLp(a),the expression of NLRP3,pro-Caspase-1,Caspase-1,GSDMD and GSDMD-N proteins re-lated to pyroptosis were significantly increased(P<0.05);the protein and mRNA levels of CYTB and pro-inflammatory cy-tokine IL-1β,IL-18 were significantly increased(P<0.05).Small pores appeared on the cell membrane,the percentage of PI stained positive cells significantly increased(P<0.05).OxLp(a)significantly inhibited the expression of mito-chondrial related proteins NRF1,NRF2 and PGC-1α,and the expression of mitochondrial gene CYTB,promoted an in-crease in mtROS generation,Ca2+overload,a decrease in ATP levels,a decrease in MMP,an increase in mPTP values,and abnormal mitochondrial morphology.After transfection with pHelper 2.0 lentivirus vector overexpressing CYTB,it was found that oxLp(a)induced HUVEC pyroptosis and mitochondrial morphological and functional abnormalities were par-tially reversed by overexpression of CYTB.Conclusion oxLp(a)promotes mitochondrial morphological and functional abnormalities and induces HUVEC pyroptosis by downregulating CYTB.
6. Model informed precision dosing of warfarin: China expert consensus report (2022 version)
Jinhua ZHANG ; Maobai LIU ; Mingzhi CAI ; Yingli ZHENG ; Haiyan LAO ; Qian XIANG ; Liping DU ; Zhu ZHU ; Jing DONG ; Xiaocong ZUO ; Xingang LI ; Dewei SHANG ; Bing CHEN ; Yanrong YE ; Yuzhu WANG ; Jianjun GAO ; Jian ZHANG ; Wansheng CHEN ; Haitang XIE ; Zheng JIAO
Chinese Journal of Clinical Pharmacology and Therapeutics 2022;27(11):1201-1212
Model informed precision dosing for warfarin is to provide individualized dosing by integrating information related to patient characteristics, disease status and pharmacokinetics /pharmacodynamics of warfarin, through mathematical modeling and simulation techniques based on the quantitative pharmacology. Compared with empirical dosing, it can improve the safety, effectiveness, economy, and adherence of pharmacotherapy of warfarin. This consensus report describes the commonly used modeling and simulation techniques for warfarin, their application in developing and adjusting dosing regimens, medication adherence and economy. Moreover, this consensus also elaborates the detailed procedures for the implementation in the warfarin pharmacy service pathway to facilitate the development and application of model informed precision dosing for warfarin.
7. Model informed precision dosing: China expert consensus report
Zheng JIAO ; Xingang LI ; Dewei SHANG ; Jing DONG ; Xiaocong ZUO ; Bing CHEN ; Jianmin LIU ; Yan PAN ; Tianyan ZHOU ; Jing ZHANG ; Dongyang LIU ; Lujin LI ; Yi FANG ; Guangli MA ; Junjie DING ; Wei ZHAO ; Rui CHEN ; Xiaoqiang XIANG ; Yuzhu WANG ; Jianjun GAO ; Haitang XIE ; Pei HU ; Qingshan ZHENG
Chinese Journal of Clinical Pharmacology and Therapeutics 2021;26(11):1215-1228
Model informed precision dosing (MIPD) is a new concept to guide precision dosing for individual patient by modeling and simulation based on the available information about the individual patient, medications and the disease. Compared to the empirical dosing, MIPD could improve the efficacy, safety, economics and adherence of the pharmacotherapy according to the individual's pathophysiology, genotyping and disease progression. This consensus report provides a brief account of the concept, methodology and implementation of MIPD as well as clinical decision supporting systems for MIPD. The status and future advancing of MIPD was also discussed to facilitate the appropriate application and development of MIPD in China.

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