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Curry L, Alrubia S, Bois FY, Clayton R, El-Khateeb E, Johnson TN, Faisal M, Neuhoff S, Wragg K, Rostami-Hodjegan A. A guide to developing population files for physiologically-based pharmacokinetic modeling in the Simcyp Simulator. CPT Pharmacometrics Syst Pharmacol 2024. [PMID: 39030888 DOI: 10.1002/psp4.13202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 06/20/2024] [Accepted: 07/02/2024] [Indexed: 07/22/2024] Open
Abstract
The Simcyp Simulator is a software platform widely used in the pharmaceutical industry to conduct stochastic physiologically-based pharmacokinetic (PBPK) modeling. This approach has the advantage of combining routinely generated in vitro data on drugs and drug products with knowledge of biology and physiology parameters to predict a priori potential pharmacokinetic changes in absorption, distribution, metabolism, and excretion for populations of interest. Combining such information with pharmacodynamic knowledge of drugs enables planning for potential dosage adjustment when clinical studies are feasible. Although the conduct of dedicated clinical studies in some patient groups (e.g., with hepatic or renal diseases) is part of the regulatory path for drug development, clinical studies for all permutations of covariates potentially affecting pharmacokinetics are impossible to perform. The role of PBPK in filling the latter gap is becoming more appreciated. This tutorial describes the different input parameters required for the creation of a virtual population giving robust predictions of likely changes in pharmacokinetics. It also highlights the considerations needed to qualify the models for such contexts of use. Two case studies showing the step-by-step development and application of population files for obese or morbidly obese patients and individuals with Crohn's disease are provided as the backbone of our tutorial to give some hands-on and real-world examples.
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Affiliation(s)
- Liam Curry
- Certara Predictive Technologies (CPT), Simcyp Division, Sheffield, UK
| | - Sarah Alrubia
- Centre for Applied Pharmacokinetic Research (CAPKR), The University of Manchester, Manchester, UK
- Pharmaceutical Chemistry Department, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Frederic Y Bois
- Certara Predictive Technologies (CPT), Simcyp Division, Sheffield, UK
| | - Ruth Clayton
- Certara Predictive Technologies (CPT), Simcyp Division, Sheffield, UK
| | - Eman El-Khateeb
- Certara Predictive Technologies (CPT), Simcyp Division, Sheffield, UK
- Clinical Pharmacy Department, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Trevor N Johnson
- Certara Predictive Technologies (CPT), Simcyp Division, Sheffield, UK
| | - Muhammad Faisal
- Certara Predictive Technologies (CPT), Simcyp Division, Sheffield, UK
| | - Sibylle Neuhoff
- Certara Predictive Technologies (CPT), Simcyp Division, Sheffield, UK
| | - Kris Wragg
- Certara Predictive Technologies (CPT), Simcyp Division, Sheffield, UK
| | - Amin Rostami-Hodjegan
- Certara Predictive Technologies (CPT), Simcyp Division, Sheffield, UK
- Centre for Applied Pharmacokinetic Research (CAPKR), The University of Manchester, Manchester, UK
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2
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Hohmann N, Schröder F, Moreira B, Teng H, Burhenne J, Bruckner T, Mueller S, Haefeli WE, Seitz HK. Effect of Clomethiazole Vs. Clorazepate on Hepatic Fat and Serum Transaminase Activities in Alcohol-Associated Liver Disease: Results from a Randomized, Controlled Phase II Clinical Trial. Alcohol Alcohol 2023; 58:134-141. [PMID: 36562601 DOI: 10.1093/alcalc/agac068] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 10/27/2022] [Accepted: 11/21/2022] [Indexed: 12/24/2022] Open
Abstract
AIMS Alcohol-associated liver disease (ALD) is a global health problem caused, among other factors, by oxidative stress from the formation of reactive oxygen species (ROS). One important source of ROS is microsomal ethanol metabolism catalyzed by cytochrome P450 2E1 (CYP2E1), which is induced by chronic ethanol consumption. Inhibition of CYP2E1 by clomethiazole (CMZ) decreases oxidative stress in cell cultures and improves ALD in animal studies. Our study aimed to assess the benefits of a CYP2E1 inhibitor (clomethiazole) in detoxification of patients with ALD. METHODS Open label, randomized controlled clinical trial to study whether CYP2E1 inhibition improves ALD in the patients with alcohol use disorders admitted for alcohol detoxification therapy (ADT). Patients had to have a serum aspartate aminotransferase (AST) activity exceeding twice the upper normal limit at time of admission and be non-cirrhotic defined by fibroscan value <12 kPa. Sixty patients were randomly assigned to ADT with either CMZ or clorazepate (CZP) for 7-10 days in a 1:1 ratio. The chlorzoxazone test of CYP2E1 activity was performed at enrolment and at 2 points during the study. RESULTS ADT improved hepatic steatosis (controlled attenuation parameter) in both groups significantly. A trend towards a greater improvement in hepatic fat content during ADT (-21.5%) was observed in the CMZ group (252 ± 48 dB/m vs. 321 ± 38 dB/m; P < 0.0001) compared with the CZP group (-13.9%; 273 ± 38 dB/m vs. 317 ± 39 dB/m; P < 0.0001). As already reported, serum AST (P < 0.004) and alanine aminotransferase (ALT) activities (P < 0.0006) significantly decreased in CMZ patients as compared with patients on CZP by the end of hospitalization. A significant correlation was found between AST (P = 0.023), ALT (P = 0.009), GGT (P = 0.039) and CAP. CONCLUSION This study demonstrates that CMZ improves clinical biomarkers for ALD in humans most likely due to its inhibitory effect on CYP2E1. Because of its addictive potential, CMZ can only be given for a short period of time and therefore other CYP2E1 inhibitors to treat ALD are needed.
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Affiliation(s)
- Nicolas Hohmann
- Department of Clinical Pharmacology and Pharmacoepidemiology, Heidelberg University Hospital, Heidelberg 69120, Germany
| | - Fabian Schröder
- Centre of Alcohol Research (CAR) University of Heidelberg, Germany, and Department of Medicine, Salem Medical Centre, Heidelberg 69121, Germany
| | - Bernardo Moreira
- Centre of Alcohol Research (CAR) University of Heidelberg, Germany, and Department of Medicine, Salem Medical Centre, Heidelberg 69121, Germany
| | - Haidong Teng
- Centre of Alcohol Research (CAR) University of Heidelberg, Germany, and Department of Medicine, Salem Medical Centre, Heidelberg 69121, Germany
| | - Jürgen Burhenne
- Department of Clinical Pharmacology and Pharmacoepidemiology, Heidelberg University Hospital, Heidelberg 69120, Germany
| | - Thomas Bruckner
- Institute for Medical Biometry and Informatics, Heidelberg University, Heidelberg 69120, Germany
| | - Sebastian Mueller
- Centre of Alcohol Research (CAR) University of Heidelberg, Germany, and Department of Medicine, Salem Medical Centre, Heidelberg 69121, Germany
| | - Walter E Haefeli
- Department of Clinical Pharmacology and Pharmacoepidemiology, Heidelberg University Hospital, Heidelberg 69120, Germany
| | - Helmut K Seitz
- Centre of Alcohol Research (CAR) University of Heidelberg, Germany, and Department of Medicine, Salem Medical Centre, Heidelberg 69121, Germany
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Abstract
The epidemic of obesity, type 2 diabetes and nonalcoholic liver disease (NAFLD) favors drug consumption, which augments the risk of adverse events including liver injury. For more than 30 years, a series of experimental and clinical investigations reported or suggested that the common pain reliever acetaminophen (APAP) could be more hepatotoxic in obesity and related metabolic diseases, at least after an overdose. Nonetheless, several investigations did not reproduce these data. This discrepancy might come from the extent of obesity and steatosis, accumulation of specific lipid species, mitochondrial dysfunction and diabetes-related parameters such as ketonemia and hyperglycemia. Among these factors, some of them seem pivotal for the induction of cytochrome P450 2E1 (CYP2E1), which favors the conversion of APAP to the toxic metabolite N-acetyl-p-benzoquinone imine (NAPQI). In contrast, other factors might explain why obesity and NAFLD are not always associated with more frequent or more severe APAP-induced acute hepatotoxicity, such as increased volume of distribution in the body, higher hepatic glucuronidation and reduced CYP3A4 activity. Accordingly, the occurrence and outcome of APAP-induced liver injury in an obese individual with NAFLD would depend on a delicate balance between metabolic factors that augment the generation of NAPQI and others that can mitigate hepatotoxicity.
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4
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Gerhart JG, Balevic S, Sinha J, Perrin EM, Wang J, Edginton AN, Gonzalez D. Characterizing Pharmacokinetics in Children With Obesity-Physiological, Drug, Patient, and Methodological Considerations. Front Pharmacol 2022; 13:818726. [PMID: 35359853 PMCID: PMC8960278 DOI: 10.3389/fphar.2022.818726] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 01/24/2022] [Indexed: 12/19/2022] Open
Abstract
Childhood obesity is an alarming public health problem. The pediatric obesity rate has quadrupled in the past 30 years, and currently nearly 20% of United States children and 9% of children worldwide are classified as obese. Drug distribution and elimination processes, which determine drug exposure (and thus dosing), can vary significantly between patients with and without obesity. Obesity-related physiological changes, such as increased tissue volume and perfusion, altered blood protein concentrations, and tissue composition can greatly affect a drug's volume of distribution, which might necessitate adjustment in loading doses. Obesity-related changes in the drug eliminating organs, such as altered enzyme activity in the liver and glomerular filtration rate, can affect the rate of drug elimination, which may warrant an adjustment in the maintenance dosing rate. Although weight-based dosing (i.e., in mg/kg) is commonly practiced in pediatrics, choice of the right body size metric (e.g., total body weight, lean body weight, body surface area, etc.) for dosing children with obesity still remains a question. To address this gap, the interplay between obesity-related physiological changes (e.g., altered organ size, composition, and function), and drug-specific properties (e.g., lipophilicity and elimination pathway) needs to be characterized in a quantitative framework. Additionally, methodological considerations, such as adequate sample size and optimal sampling scheme, should also be considered to ensure accurate and precise top-down covariate selection, particularly when designing opportunistic studies in pediatric drug development. Further factors affecting dosing, including existing dosing recommendations, target therapeutic ranges, dose capping, and formulations constraints, are also important to consider when undergoing dose selection for children with obesity. Opportunities to bridge the dosing knowledge gap in children with obesity include modeling and simulating techniques (i.e., population pharmacokinetic and physiologically-based pharmacokinetic [PBPK] modeling), opportunistic clinical data, and real world data. In this review, key considerations related to physiology, drug parameters, patient factors, and methodology that need to be accounted for while studying the influence of obesity on pharmacokinetics in children are highlighted and discussed. Future studies will need to leverage these modeling opportunities to better describe drug exposure in children with obesity as the childhood obesity epidemic continues.
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Affiliation(s)
- Jacqueline G. Gerhart
- Division of Pharmacotherapy and Experimental Therapeutics, UNC Eshelman School of Pharmacy, The University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Stephen Balevic
- Division of Pharmacotherapy and Experimental Therapeutics, UNC Eshelman School of Pharmacy, The University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
- Department of Pediatrics, Duke University Medical Center, Durham, NC, United States
- Duke Clinical Research Institute, Durham, NC, United States
| | - Jaydeep Sinha
- Division of Pharmacotherapy and Experimental Therapeutics, UNC Eshelman School of Pharmacy, The University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
- Department of Pediatrics, UNC School of Medicine, The University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Eliana M. Perrin
- Department of Pediatrics, Johns Hopkins University Schools of Medicine and School of Nursing, Baltimore, MD, United States
| | - Jian Wang
- Office of Drug Evaluation IV, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, MD, United States
| | | | - Daniel Gonzalez
- Division of Pharmacotherapy and Experimental Therapeutics, UNC Eshelman School of Pharmacy, The University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
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5
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Pedersen M, Vryonidis E, Joensen A, Törnqvist M. Hemoglobin adducts of acrylamide in human blood - What has been done and what is next? Food Chem Toxicol 2022; 161:112799. [PMID: 34995709 DOI: 10.1016/j.fct.2021.112799] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 12/21/2021] [Accepted: 12/24/2021] [Indexed: 12/12/2022]
Abstract
Acrylamide forms in many commonly consumed foods. In animals, acrylamide causes tumors, neurotoxicity, developmental and reproductive effects. Acrylamide crosses the placenta and has been associated with restriction of intrauterine growth and certain cancers. The impact on human health is poorly understood and it is impossible to say what level of dietary exposure to acrylamide can be deemed safe as the assessment of exposure is uncertain. The determination of hemoglobin (Hb) adducts from acrylamide is increasingly being used to improve the exposure assessment of acrylamide. We aim to outline the literature on Hb adduct levels from acrylamide in humans and discuss methodological issues and research gaps. A total of 86 studies of 27,966 individuals from 19 countries were reviewed. Adduct levels were highest in occupationally exposed individuals and smokers. Levels ranged widely from 3 to 210 pmol/g Hb in non-smokers and this wide range suggests that dietary exposure to acrylamide varies largely. Non-smokers from the US and Canada had slightly higher levels as compared with non-smokers from elsewhere, but differences within studies were larger than between studies. Large studies with exposure assessment of acrylamide and related adduct forming compounds from diet during early-life are encouraged for the evaluation of health effects.
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Affiliation(s)
- Marie Pedersen
- Department of Public Health, University of Copenhagen, Copenhagen, Denmark.
| | | | - Andrea Joensen
- Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Margareta Törnqvist
- Department of Environmental Science, Stockholm University, Stockholm, Sweden
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6
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Haslund-Krog SS, Jorgensen IM, Henriksen TB, Dalhoff K, Debes NM, van den Anker J, Holst H. Challenges in conducting paediatric trials with off-patent drugs. Contemp Clin Trials Commun 2021; 23:100783. [PMID: 34258467 PMCID: PMC8253945 DOI: 10.1016/j.conctc.2021.100783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 03/28/2021] [Accepted: 05/07/2021] [Indexed: 11/17/2022] Open
Abstract
Introduction For more than two decades several initiatives have emerged to increase recruitment of paediatric patients in drug trials. While trials of newly approved drugs have successfully included paediatric patients in their drug development plan, the collection of safety and efficacy data in paediatric patients treated with off-patent drugs poses a major challenge. Aim This paper aims to draw attention to problems and solutions across countries in investigator-initiated trials with off-patent drugs and recommendations for improvement. Discussion Off-patent drugs represent a particular challenge when they are included in a paediatric trial; these trials are frequently investigator-initiated and have limited resources, off-patent drugs are used in clinical settings and the trial protocol must accommodate e.g. flexible dosing and specimen sampling schedules, off-patent drugs typically exist in few formulations and concentrations which necessitates special or imported formulations. Paediatric trials are in some countries confined by e.g. consent from both parents, regardless of whether the Investigational Medicinal Product (IMP) is a well-known drug or a new experimental drug. Conclusion Facilitation of research in off-patent drugs can improve evidence-based and safe treatment for the paediatric population. The following supportive initiatives are recommended: Harmonised regulatory change that improves the consent process in low risk trials to prevent inadequate recruitment. Pharmaceutical expertise should be prioritized to secure the best choice of IMP and supply. Constant focus on flexibility in design to accommodate a multifaceted paediatric population and ensure that trial protocols fit in well with routine clinical care and family life.
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Affiliation(s)
- S S Haslund-Krog
- Department of Clinical Pharmacology, Bispebjerg and Frederiksberg University Hospital, Bispebjerg Bakke 23, 2400, Copenhagen, NV, Denmark.,Department of Paediatric and Adolescent Medicine, Nordsjællands University Hospital, Hillerød, Dyrehavevej 29, 3400, Hillerød, Denmark
| | - I M Jorgensen
- Department of Paediatric and Adolescent Medicine, Nordsjællands University Hospital, Hillerød, Dyrehavevej 29, 3400, Hillerød, Denmark.,Institute for Clinical Medicine, University of Copenhagen, Denmark
| | - T B Henriksen
- Neonatal Intensive Care Unit, Department of Paediatrics, Aarhus University Hospital, Palle Juul- Jensens Boulevard 99, 8200, Aarhus N, Denmark
| | - K Dalhoff
- Department of Clinical Pharmacology, Bispebjerg and Frederiksberg University Hospital, Bispebjerg Bakke 23, 2400, Copenhagen, NV, Denmark
| | - N M Debes
- Department of Paediatric and Adolescent Medicine, Herlev Hospital, Borgmester Ib Juuls Vej 25C, 2730, Herlev, Denmark
| | - J van den Anker
- Division of Clinical Pharmacology, Children's National Hospital, Washington, DC, 20010, USA.,Division of Paediatric Pharmacology and Pharmacometrics, University Children's Hospital Basel, University of Basel, Switzerland
| | - H Holst
- Department of Clinical Pharmacology, Bispebjerg and Frederiksberg University Hospital, Bispebjerg Bakke 23, 2400, Copenhagen, NV, Denmark
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7
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Massart J, Begriche K, Fromenty B. Cytochrome P450 2E1 should not be neglected for acetaminophen-induced liver injury in metabolic diseases with altered insulin levels or glucose homeostasis. Clin Res Hepatol Gastroenterol 2021; 45:101470. [PMID: 32571750 DOI: 10.1016/j.clinre.2020.05.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 05/20/2020] [Indexed: 02/08/2023]
Abstract
Acetaminophen (APAP) hepatotoxicity is mediated by N-acetyl-p-benzoquinone imine (NAPQI), a highly toxic metabolite generated by cytochrome P450 2E1 (CYP2E1). Thus, pathological conditions increasing CYP2E1 activity can favour APAP-induced liver injury, which is characterized by massive hepatocellular necrosis and secondary sterile inflammation. In a recent work, Wang et al. showed that APAP-induced hepatotoxicity was exacerbated in a murine model of type 1 diabetes induced by the administration of streptozotocin (STZ). Higher hepatotoxicity was in particular associated with a stronger proinflammatory response of the resident macrophages. Although the authors carried out numerous investigations, they did not study hepatic CYP2E1, nor discussed the possible role of this enzyme in the exacerbation of APAP hepatotoxicity. However, numerous investigations reported hepatic CYP2E1 induction in STZ-treated rodents, which could be secondary to insulinopenia and ketosis. This commentary also discusses the role of insulin resistance in CYP2E1 induction observed in obesity and nonalcoholic fatty liver disease. Investigators studying APAP-induced liver injury in the context of insulinopenia or hyperinsulinemia are thus encouraged to consider CYP2E1 as a significant player in the observed phenotypic changes.
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Affiliation(s)
- Julie Massart
- INSERM, Université de Rennes, INRAE, Institut NUMECAN (Nutrition Metabolisms and Cancer) UMR_A 1341, UMR_S 1241, 35000 Rennes, France
| | - Karima Begriche
- INSERM, Université de Rennes, INRAE, Institut NUMECAN (Nutrition Metabolisms and Cancer) UMR_A 1341, UMR_S 1241, 35000 Rennes, France
| | - Bernard Fromenty
- INSERM, Université de Rennes, INRAE, Institut NUMECAN (Nutrition Metabolisms and Cancer) UMR_A 1341, UMR_S 1241, 35000 Rennes, France.
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8
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Kito K, Ishihara J, Kotemori A, Zha L, Liu R, Sawada N, Iwasaki M, Sobue T, Tsugane S. Dietary Acrylamide Intake and the Risk of Pancreatic Cancer: The Japan Public Health Center-Based Prospective Study. Nutrients 2020; 12:E3584. [PMID: 33266487 PMCID: PMC7700165 DOI: 10.3390/nu12113584] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Revised: 11/10/2020] [Accepted: 11/20/2020] [Indexed: 12/15/2022] Open
Abstract
Acrylamide is a probable carcinogen in humans. Few studies have assessed dietary acrylamide intake and the risk of pancreatic cancer; however, these studies are based on Western populations. Our purpose was to investigate the association of dietary acrylamide intake with the risk of pancreatic cancer utilizing data from the Japan Public Health Center-based Prospective Study. We evaluated the data of 89,729 participants aged 45-74 years, who replied to a questionnaire on past medical history and lifestyle habits from 1995-1998. Dietary acrylamide intake was estimated utilizing a validated food frequency questionnaire. We calculated the hazard ratios and 95% confidence intervals by using Cox proportional-hazards regression models. The average follow-up was 15.2 years, and 576 cases of pancreatic cancer were diagnosed. In the multivariate-adjusted model, an association between dietary acrylamide intake and pancreatic cancer risk was not demonstrated (hazard ratio for the highest vs. lowest quartile = 0.83, 95% confidence interval: 0.65-1.05, p for trend = 0.07). Furthermore, in the analyses stratified by sex, smoking status, coffee consumption, green tea consumption, alcohol consumption, and body mass index, no significant association was detected. Dietary acrylamide intake was not associated with the pancreatic cancer risk in Japanese individuals.
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Affiliation(s)
- Kumiko Kito
- Graduate School of Environmental Health, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201, Japan;
| | - Junko Ishihara
- Department of Food and Life Science, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201, Japan;
| | - Ayaka Kotemori
- Department of Food and Life Science, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201, Japan;
| | - Ling Zha
- Department of Environmental Medicine and Population Sciences, Graduate School of Medicine, Osaka University, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan; (L.Z.); (R.L.); (T.S.)
| | - Rong Liu
- Department of Environmental Medicine and Population Sciences, Graduate School of Medicine, Osaka University, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan; (L.Z.); (R.L.); (T.S.)
| | - Norie Sawada
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan; (N.S.); (M.I.); (S.T.)
| | - Motoki Iwasaki
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan; (N.S.); (M.I.); (S.T.)
| | - Tomotaka Sobue
- Department of Environmental Medicine and Population Sciences, Graduate School of Medicine, Osaka University, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan; (L.Z.); (R.L.); (T.S.)
| | - Shoichiro Tsugane
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan; (N.S.); (M.I.); (S.T.)
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9
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Zarezadeh M, Saedisomeolia A, Shekarabi M, Khorshidi M, Emami MR, Müller DJ. The effect of obesity, macronutrients, fasting and nutritional status on drug-metabolizing cytochrome P450s: a systematic review of current evidence on human studies. Eur J Nutr 2020; 60:2905-2921. [PMID: 33141242 DOI: 10.1007/s00394-020-02421-y] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 10/19/2020] [Indexed: 02/08/2023]
Abstract
BACKGROUND Cytochrome P450s (CYPs) are a class of hemoproteins involved in drug metabolism. It has been reported that body composition, proportion of dietary macronutrients, fasting and nutritional status can interfere with the activity of drug-metabolizing CYPs. OBJECTIVES The present systematic review was conducted to summarize the effect of obesity, weight reduction, macronutrients, fasting and malnutrition on the CYP-mediated drug metabolism. METHODS PubMed (Medline), Scopus, Embase and Cochrane Library databases and Google Scholar were searched up to June 2020 to obtain relevant studies. The PRISMA guidelines were employed during all steps. Two reviewers independently extracted the information from the included studies. Studies investigating CYPs activity directly or indirectly through pharmacokinetics of probe drugs, were included. Increase in clearance (CL) or decrease in elimination half-life (t½) and area under the curve (AUC) of probe drugs were considered as increase in CYPs activity. RESULTS A total of 6545 articles were obtained through searching databases among which 69 studies with 126 datasets fully met the inclusion criteria. The results indicated that obesity might decrease the activity of CYP3A4/5, CYP1A2 and CYP2C9 and increase the activity of CYP2E1. The effect of obesity on CYP2D6 is controversial. Also, weight loss increased CYP3A4 activity. Moreover, CYP1A2 activity was decreased by high carbohydrate diet, increased by high protein diet and fasting and unchanged by malnutrition. The activity of CYP2C19 was less susceptible to alterations compared to other CYPs. CONCLUSION The activity of drug-metabolizing CYPs are altered by body composition, dietary intake and nutritional status. This relationship might contribute to drug toxicity or reduce treatment efficacy and influence cost-effectiveness of medical care.
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Affiliation(s)
- Meysam Zarezadeh
- Department of Clinical Nutrition, Student Research Committee, Nutrition Research Center, Faculty of Nutrition and Food Science, Tabriz University of Medical Science, Tabriz, Iran
| | - Ahmad Saedisomeolia
- Department of Cellular and Molecular Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran. .,School of Medicine, Western Sydney University, Sydney, NSW, 2560, Australia.
| | - Mahoor Shekarabi
- Faculty of Medical Sciences and Technologies, Science and Research Branch, Azad University, Tehran, Iran
| | - Masoud Khorshidi
- Student's Research Committee, Department of Nutrition, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Mohammad Reza Emami
- Department of Clinical Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Daniel J Müller
- Department of Psychiatry, Faculty of Medicine, University of Toronto, Toronto, ON, Canada.,Pharmacogenetic Research Clinic, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON, Canada
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10
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Yang Y, Liu X. Imbalance of Drug Transporter-CYP450s Interplay by Diabetes and Its Clinical Significance. Pharmaceutics 2020; 12:E348. [PMID: 32290519 PMCID: PMC7238081 DOI: 10.3390/pharmaceutics12040348] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 03/28/2020] [Accepted: 04/02/2020] [Indexed: 02/07/2023] Open
Abstract
The pharmacokinetics of a drug is dependent upon the coordinate work of influx transporters, enzymes and efflux transporters (i.e., transporter-enzyme interplay). The transporter-enzyme interplay may occur in liver, kidney and intestine. The influx transporters involving drug transport are organic anion transporting polypeptides (OATPs), peptide transporters (PepTs), organic anion transporters (OATs), monocarboxylate transporters (MCTs) and organic cation transporters (OCTs). The efflux transporters are P-glycoprotein (P-gp), multidrug/toxin extrusions (MATEs), multidrug resistance-associated proteins (MRPs) and breast cancer resistance protein (BCRP). The enzymes related to drug metabolism are mainly cytochrome P450 enzymes (CYP450s) and UDP-glucuronosyltransferases (UGTs). Accumulating evidence has demonstrated that diabetes alters the expression and functions of CYP450s and transporters in a different manner, disordering the transporter-enzyme interplay, in turn affecting the pharmacokinetics of some drugs. We aimed to focus on (1) the imbalance of transporter-CYP450 interplay in the liver, intestine and kidney due to altered expressions of influx transporters (OATPs, OCTs, OATs, PepTs and MCT6), efflux transporters (P-gp, BCRP and MRP2) and CYP450s (CYP3As, CYP1A2, CYP2E1 and CYP2Cs) under diabetic status; (2) the net contributions of these alterations in the expression and functions of transporters and CYP450s to drug disposition, therapeutic efficacy and drug toxicity; (3) application of a physiologically-based pharmacokinetic model in transporter-enzyme interplay.
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Affiliation(s)
| | - Xiaodong Liu
- Center of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing 210009, China;
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11
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Wang P, Shao X, Bao Y, Zhu J, Chen L, Zhang L, Ma X, Zhong XB. Impact of obese levels on the hepatic expression of nuclear receptors and drug-metabolizing enzymes in adult and offspring mice. Acta Pharm Sin B 2020; 10:171-185. [PMID: 31993314 PMCID: PMC6976990 DOI: 10.1016/j.apsb.2019.10.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 08/30/2019] [Accepted: 09/18/2019] [Indexed: 12/13/2022] Open
Abstract
The prevalence of obesity-associated conditions raises new challenges in clinical medication. Although altered expression of drug-metabolizing enzymes (DMEs) has been shown in obesity, the impacts of obese levels (overweight, obesity, and severe obesity) on the expression of DMEs have not been elucidated. Especially, limited information is available on whether parental obese levels affect ontogenic expression of DMEs in children. Here, a high-fat diet (HFD) and three feeding durations were used to mimic different obese levels in C57BL/6 mice. The hepatic expression of five nuclear receptors (NRs) and nine DMEs was examined. In general, a trend of induced expression of NRs and DMEs (except for Cyp2c29 and 3a11) was observed in HFD groups compared to low-fat diet (LFD) groups. Differential effects of HFD on the hepatic expression of DMEs were found in adult mice at different obese levels. Family-based dietary style of an HFD altered the ontogenic expression of DMEs in the offspring older than 15 days. Furthermore, obese levels of parental mice affected the hepatic expression of DMEs in offspring. Overall, the results indicate that obese levels affected expression of the DMEs in adult individuals and that of their children. Drug dosage might need to be optimized based on the obese levels.
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Key Words
- 18-HA, adult mice fed with 18 weeks HFD
- 18-LA, adult mice fed with 18 weeks LFD
- 4-HA, adult mice fed with 4 weeks HFD
- 4-LA, adult mice fed with 4 weeks LFD
- 7-ER, 7-ethoxyresorufin
- 8-HA, adult mice fed with 8 weeks HFD
- 8-LA, adult mice fed with 8 weeks LFD
- AhR, aryl hydrocarbon receptor
- BMI, body mass index
- CAR, constitutive androstane receptor
- CHZ, chlorzoxazone
- CYP2E1, cytochrome P450 2E1
- DIO, diet-induced obesity
- DMEs, drug-metabolizing enzymes
- Diet-induced obesity
- Drug-metabolizing enzymes
- EFV, efavirenz
- Gapdh, glyceraldehyde-3-phosphate dehydrogenase
- HFD, high-fat diet
- HNF4α, hepatocyte nuclear factor 4 alpha
- High-fat diet
- LFD, low-fat diet
- MDZ, midazolam
- MPA, mobile phase A
- MPB, mobile phase B
- NADPH, nicotinamide adenine dinucleotide phosphate
- NAFLD, non-alcoholic fatty liver disease
- NRs, nuclear receptors
- Nuclear receptors
- O-18-HA, offspring from parental mice fed with 18 weeks HFD
- O-18-LA, offspring from parental mice fed with 18 weeks LFD
- O-4-HA, offspring from parental mice fed with 4 weeks HFD
- O-4-LA, offspring from parental mice fed with 4 weeks LFD
- O-8-HA, offspring from parental mice fed with 8 weeks HFD
- O-8-LA, offspring from parental mice fed with 8 weeks LFD
- Ontogenic expression
- Overweight
- PBS, phosphate-buffered saline
- PPARα, peroxisome proliferator-activated receptor alpha
- PXR, pregnane X receptor
- RSF, resorufin
- RT-qPCR, real-time quantitative PCR
- SD, standard deviation
- SULT1A1, sulfotransferase 1A1
- UGT1A1, uridine diphosphate glucuronosyltransferase 1A1
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Affiliation(s)
- Pei Wang
- Department of Pharmacology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, China
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Connecticut, Storrs, CT 06269, USA
| | - Xueyan Shao
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Connecticut, Storrs, CT 06269, USA
| | - Yifan Bao
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Connecticut, Storrs, CT 06269, USA
| | - Junjie Zhu
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Liming Chen
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Connecticut, Storrs, CT 06269, USA
| | - Lirong Zhang
- Department of Pharmacology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Xiaochao Ma
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Xiao-bo Zhong
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Connecticut, Storrs, CT 06269, USA
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Kang AM, Padilla-Jones A, Fisher ES, Akakpo JY, Jaeschke H, Rumack BH, Gerkin RD, Curry SC. The Effect of 4-Methylpyrazole on Oxidative Metabolism of Acetaminophen in Human Volunteers. J Med Toxicol 2019; 16:169-176. [PMID: 31768936 DOI: 10.1007/s13181-019-00740-z] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 09/12/2019] [Accepted: 09/15/2019] [Indexed: 12/11/2022] Open
Abstract
INTRODUCTION Acetaminophen (APAP) is commonly ingested in both accidental and suicidal overdose. Oxidative metabolism by cytochrome P450 2E1 (CYP2E1) produces the hepatotoxic metabolite, N-acetyl-p-benzoquinone imine. CYP2E1 inhibition using 4-methylpyrazole (4-MP) has been shown to prevent APAP-induced liver injury in mice and human hepatocytes. This study was conducted to assess the effect of 4-MP on APAP metabolism in humans. METHODS This crossover trial examined the ability of 4-MP to inhibit CYP2E1 metabolism of APAP in five human volunteers. Participants received a single oral dose of APAP 80 mg/kg, both with and without intravenous 4-MP, after which urinary and plasma oxidative APAP metabolites were measured. The primary outcome was the fraction of ingested APAP excreted as total oxidative metabolites (APAP-CYS, APAP-NAC, APAP-GSH). RESULTS Compared with APAP alone, co-treatment with 4-MP decreased the percentage of ingested APAP recovered as oxidative metabolites in 24-hour urine from 4.48 to 0.51% (95% CI = 2.31-5.63%, p = 0.003). Plasma concentrations of these oxidative metabolites also decreased. CONCLUSIONS These results show 4-MP effectively reduced oxidative metabolism of APAP in human volunteers ingesting a supratherapeutic APAP dose. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT03878693.
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Affiliation(s)
- A Min Kang
- Division of Clinical Data Analytics and Decision Support, and Division of Medical Toxicology and Precision Medicine, Department of Medicine, University of Arizona College of Medicine - Phoenix, Phoenix, AZ, USA. .,Department of Medical Toxicology, Banner - University Medical Center Phoenix, 1012 E. Willetta St., Fl 2, Phoenix, AZ, 85006, USA.
| | - Angela Padilla-Jones
- Department of Medical Toxicology, Banner - University Medical Center Phoenix, 1012 E. Willetta St., Fl 2, Phoenix, AZ, 85006, USA
| | - Erik S Fisher
- Department of Medical Toxicology, Banner - University Medical Center Phoenix, 1012 E. Willetta St., Fl 2, Phoenix, AZ, 85006, USA
| | - Jephte Y Akakpo
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, Kansas City, KS, USA
| | - Hartmut Jaeschke
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, Kansas City, KS, USA
| | - Barry H Rumack
- Department of Emergency Medicine, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO, USA
| | - Richard D Gerkin
- Department of Medical Toxicology, Banner - University Medical Center Phoenix, 1012 E. Willetta St., Fl 2, Phoenix, AZ, 85006, USA
| | - Steven C Curry
- Division of Clinical Data Analytics and Decision Support, and Division of Medical Toxicology and Precision Medicine, Department of Medicine, University of Arizona College of Medicine - Phoenix, Phoenix, AZ, USA.,Department of Medical Toxicology, Banner - University Medical Center Phoenix, 1012 E. Willetta St., Fl 2, Phoenix, AZ, 85006, USA
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13
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Gade C, Sverrisdóttir E, Dalhoff K, Sonne J, Johansen MØ, Christensen HR, Burhenne J, Mikus G, Holm JC, Lund TM, Holst H. Midazolam Pharmacokinetics in Obese and Non-obese Children and Adolescents. Clin Pharmacokinet 2019; 59:643-654. [DOI: 10.1007/s40262-019-00838-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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14
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Costa-Urrutia P, Colistro V, Jiménez-Osorio AS, Cárdenas-Hernández H, Solares-Tlapechco J, Ramirez-Alcántara M, Granados J, Ascencio-Montiel IDJ, Rodríguez-Arellano ME. Genome-Wide Association Study of Body Mass Index and Body Fat in Mexican-Mestizo Children. Genes (Basel) 2019; 10:E945. [PMID: 31752434 PMCID: PMC6895864 DOI: 10.3390/genes10110945] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 11/12/2019] [Accepted: 11/15/2019] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Childhood obesity is a major health problem in Mexico. Obesity prevalence estimated by body mass index (BMI) is almost half than that estimated by percent body fat (%BF) in the Childhood Obesity pediatric cohort (COIPIS). OBJECTIVE We performed a genome-wide association study (GWAS) of BMI and %BF in 828 children from the COIPIS to identify markers of predisposition to high values for both phenotypes used for obesity classification. METHODS For the GWAS we used the LAT Axiom 1, Affymetrix and 2.5 million single loci from the 1000 Genomes Phase 3 imputation panel. We used a linear model, adjusted by age, sex, and Amerindian ancestry assuming an additive inheritance model. RESULTS Genome-wide significance (p ≤ 5.0 × 10-8) and 80% of statistical power was reached for associations of two loci in two genes (CERS3 and CYP2E1) to BMI. Also, 11 loci in six genes (ANKS1B, ARNTL2, KCNS3, LMNB1, SRGAP3, TRPC7) reached genome-wide significance for associations to %BF, though not 80% of statistical power. DISCUSSION None of the SNPs were previously reported as being associated to BMI or %BF. In addition, different loci were found for BMI and %BF. These results highlight the importance of gaining deeper understanding of genetic markers of predisposition to high values for the phenotypes used for obesity diagnosis.
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Affiliation(s)
- Paula Costa-Urrutia
- Laboratorio de Medicina Genómica, Hospital Regional Lic. Adolfo López Mateos, ISSSTE. 1321 Universidad Avenue, Álvaro Obregón, Florida, Mexico City P.C0103, Mexico; (P.C.-U.); (A.S.J.-O.); (H.C.-H.); (J.S.-T.); (M.R.-A.)
| | - Valentina Colistro
- Departamento de Métodos Cuantitativos, Facultad de Medicina, Universidad de la República, 2125 General Flores Avenue, Montevideo P.C11800, Uruguay;
| | - Angélica Saraí Jiménez-Osorio
- Laboratorio de Medicina Genómica, Hospital Regional Lic. Adolfo López Mateos, ISSSTE. 1321 Universidad Avenue, Álvaro Obregón, Florida, Mexico City P.C0103, Mexico; (P.C.-U.); (A.S.J.-O.); (H.C.-H.); (J.S.-T.); (M.R.-A.)
| | - Helios Cárdenas-Hernández
- Laboratorio de Medicina Genómica, Hospital Regional Lic. Adolfo López Mateos, ISSSTE. 1321 Universidad Avenue, Álvaro Obregón, Florida, Mexico City P.C0103, Mexico; (P.C.-U.); (A.S.J.-O.); (H.C.-H.); (J.S.-T.); (M.R.-A.)
| | - Jacqueline Solares-Tlapechco
- Laboratorio de Medicina Genómica, Hospital Regional Lic. Adolfo López Mateos, ISSSTE. 1321 Universidad Avenue, Álvaro Obregón, Florida, Mexico City P.C0103, Mexico; (P.C.-U.); (A.S.J.-O.); (H.C.-H.); (J.S.-T.); (M.R.-A.)
| | - Miryam Ramirez-Alcántara
- Laboratorio de Medicina Genómica, Hospital Regional Lic. Adolfo López Mateos, ISSSTE. 1321 Universidad Avenue, Álvaro Obregón, Florida, Mexico City P.C0103, Mexico; (P.C.-U.); (A.S.J.-O.); (H.C.-H.); (J.S.-T.); (M.R.-A.)
| | - Julio Granados
- División de Inmunogenética, Departamento de Trasplantes, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán. 15 Vasco de Quiroga Avenue. Mexico City P.C.14080, Mexico;
| | - Iván de Jesús Ascencio-Montiel
- Coordinación de Vigilancia de Epidemiología, Instituto Mexicano de Seguro Social, 120 Mier y Pesado Street, del Valle Benito Juárez, Mexico City C.P. 03100 Mexico;
| | - Martha Eunice Rodríguez-Arellano
- Laboratorio de Medicina Genómica, Hospital Regional Lic. Adolfo López Mateos, ISSSTE. 1321 Universidad Avenue, Álvaro Obregón, Florida, Mexico City P.C0103, Mexico; (P.C.-U.); (A.S.J.-O.); (H.C.-H.); (J.S.-T.); (M.R.-A.)
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15
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Li F, Lu R, Zhao T, Zhang X, Wang S, Xing G. Comparing the protective effects of three sulfur compounds against acrylonitrile-induced acute toxicity in CYP2E1-induced rats. Toxicol Ind Health 2019; 35:387-397. [PMID: 30991910 DOI: 10.1177/0748233719839847] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Cytochrome P450 2E1 (CYP2E1) can be induced by diabetes mellitus, nonalcoholic liver disease, and obesity. This study assessed the protective effects of three sulfur compounds, namely phenethyl isothiocyanate (PEITC), dimethyl trisulfide (DMTS), and sodium thiosulfate (STS), on acrylonitrile (ACN)-induced acute toxicity in rats enriched with CYP2E1. PEITC and DMTS were administered intragastrically (i.g.), whereas STS was injected intraperitoneally (i.p.) at an identical dose of 0.5 mmol/kg for 3 days in acetone-pretreated rats before ACN (90 mg/kg) injection (i.p.). Acetone-treated rats that expressed high levels of CYP2E1 were more susceptible to ACN-induced acute toxicity. The sulfur compounds reduced the rate of convulsions and loss of the righting reflex in acute ACN-exposed CYP2E1-induced rats; PEITC and DMTS also increased the survival rates. PEITC inhibited hepatic CYP2E1 activity and protected hepatic and cerebral cytochrome c oxidase (CcOx) activities in acute ACN-exposed CYP2E1-enriched rats; DMTS protected hepatic CcOx activity. DMTS attenuated ACN-induced oxidative injury by reducing malondialdehyde (MDA) levels and increasing glutathione content in the brain. STS only reduced cerebral MDA levels, whereas PEITC did not exhibit any antioxidant effects. Collectively, PEITC provided superior protective effects against ACN-induced acute toxicity in rats with increased CYP2E1 activity, followed by DMTS; STS provided limited effects. PEITC and DMTS might be considered as promising chemopreventive agents against ACN-induced acute toxicity in vulnerable subpopulations with increased CYP2E1 activity.
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Affiliation(s)
- Fang Li
- 1 School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Rongzhu Lu
- 1 School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Ting Zhao
- 2 School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Xinyu Zhang
- 1 School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Suhua Wang
- 1 School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Guangwei Xing
- 1 School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
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16
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Allard J, Le Guillou D, Begriche K, Fromenty B. Drug-induced liver injury in obesity and nonalcoholic fatty liver disease. ADVANCES IN PHARMACOLOGY (SAN DIEGO, CALIF.) 2019; 85:75-107. [PMID: 31307592 DOI: 10.1016/bs.apha.2019.01.003] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Obesity is commonly associated with nonalcoholic fatty liver (NAFL), a benign condition characterized by hepatic lipid accumulation. However, NAFL can progress in some patients to nonalcoholic steatohepatitis (NASH) and then to severe liver lesions including extensive fibrosis, cirrhosis and hepatocellular carcinoma. The entire spectrum of these hepatic lesions is referred to as nonalcoholic fatty liver disease (NAFLD). The transition of simple fatty liver to NASH seems to be favored by several genetic and environmental factors. Different experimental and clinical investigations showed or suggested that obesity and NAFLD are able to increase the risk of hepatotoxicity of different drugs. Some of these drugs may cause more severe and/or more frequent acute liver injury in obese individuals whereas others may trigger the transition of simple fatty liver to NASH or may worsen hepatic lipid accumulation, necroinflammation and fibrosis. This review presents the available information regarding drugs that may cause a specific risk in the context of obesity and NAFLD. These drugs, which belong to different pharmacological classes, include acetaminophen, halothane, methotrexate, rosiglitazone and tamoxifen. For some of these drugs, experimental investigations confirmed the clinical observations and unveiled different pathophysiological mechanisms which may explain why these pharmaceuticals are particularly hepatotoxic in obesity and NAFLD. Because obese people often take several drugs for the treatment of different obesity-related diseases, there is an urgent need to identify the main pharmaceuticals that may cause acute liver injury on a fatty liver background or that may enhance the risk of severe chronic liver disease.
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Affiliation(s)
- Julien Allard
- INSERM, Univ. Rennes, INRA, Institut NUMECAN (Nutrition Metabolisms and Cancer) UMR_A 1341, UMR_S 1241, Rennes, France
| | - Dounia Le Guillou
- INSERM, Univ. Rennes, INRA, Institut NUMECAN (Nutrition Metabolisms and Cancer) UMR_A 1341, UMR_S 1241, Rennes, France
| | - Karima Begriche
- INSERM, Univ. Rennes, INRA, Institut NUMECAN (Nutrition Metabolisms and Cancer) UMR_A 1341, UMR_S 1241, Rennes, France
| | - Bernard Fromenty
- INSERM, Univ. Rennes, INRA, Institut NUMECAN (Nutrition Metabolisms and Cancer) UMR_A 1341, UMR_S 1241, Rennes, France.
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17
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Gade C, Dalhoff K, Petersen T, Riis T, Schmeltz C, Chabanova E, Christensen HR, Mikus G, Burhenne J, Holm JC, Holst H. Obesity-induced CYP2E1 activity in children. Br J Clin Pharmacol 2018; 85:458-459. [PMID: 30537026 DOI: 10.1111/bcp.13813] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 11/01/2018] [Accepted: 11/03/2018] [Indexed: 11/27/2022] Open
Affiliation(s)
- Christina Gade
- Department of Clinical Pharmacology, Copenhagen University Hospital, Bispebjerg and Frederiksberg, Denmark
| | - Kim Dalhoff
- Department of Clinical Pharmacology, Copenhagen University Hospital, Bispebjerg and Frederiksberg, Denmark
| | - Tonny Petersen
- Department of Clinical Pharmacology, Copenhagen University Hospital, Bispebjerg and Frederiksberg, Denmark
| | - Troels Riis
- Department of Clinical Pharmacology, Copenhagen University Hospital, Bispebjerg and Frederiksberg, Denmark
| | - Camilla Schmeltz
- The Children's Obesity Clinic, Department of Paediatrics, Copenhagen University Hospital Holbaek, Denmark
| | - Elizaveta Chabanova
- Department of Radiology, Copenhagen University Hospital, Herlev and Gentofte, Denmark
| | - Hanne Rolighed Christensen
- Department of Clinical Pharmacology, Copenhagen University Hospital, Bispebjerg and Frederiksberg, Denmark
| | - Gerd Mikus
- Department of Clinical Pharmacology and Pharmacoepidemiology, University of Heidelberg, Germany
| | - Juergen Burhenne
- Department of Clinical Pharmacology and Pharmacoepidemiology, University of Heidelberg, Germany
| | - Jens Christian Holm
- The Children's Obesity Clinic, Department of Paediatrics, Copenhagen University Hospital Holbaek, Denmark.,Novo Nordisk Foundation Centre for Basic Metabolic Research, Denmark
| | - Helle Holst
- Department of Clinical Pharmacology, Copenhagen University Hospital, Bispebjerg and Frederiksberg, Denmark
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18
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Kaur H, Sarma P, Prakash A, Medhi B. CYP2E1 activity and children with obesity: possible confounding factors. Br J Clin Pharmacol 2018; 85:457. [PMID: 30334271 DOI: 10.1111/bcp.13769] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 08/25/2018] [Accepted: 09/06/2018] [Indexed: 02/05/2023] Open
Abstract
Lots of factors can influence CYP2E1 activities, e.g. thyroid status, different types of anaemia (fanconi anaemia and sideroblastic anaemia), etc. Alcohol is a known inducer of CYP2E1, therefore a justifiable duration of abstinence is required before the subjects are enrolled into a study for normalization of CYP2E1 activity. In this letter we address these confounding factors and their role in CYP2E1 activity.
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Affiliation(s)
- Hardeep Kaur
- Department of Pharmacology, PGIMER, Chandigarh, India
| | - Phulen Sarma
- Department of Pharmacology, PGIMER, Chandigarh, India
| | - Ajay Prakash
- Department of Pharmacology, PGIMER, Chandigarh, India
| | - Bikash Medhi
- Department of Pharmacology, PGIMER, Chandigarh, India
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19
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Quesnot N, Bucher S, Gade C, Vlach M, Vene E, Valença S, Gicquel T, Holst H, Robin MA, Loyer P. Production of chlorzoxazone glucuronides via cytochrome P4502E1 dependent and independent pathways in human hepatocytes. Arch Toxicol 2018; 92:3077-3091. [PMID: 30151596 DOI: 10.1007/s00204-018-2300-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Accepted: 08/23/2018] [Indexed: 12/28/2022]
Abstract
CYP2E1 activity is measured in vitro and in vivo via hydroxylation of the Chlorzoxazone (CHZ) producing the 6-hydroxychlorzoxazone (OH-CHZ) further metabolized as a glucuronide excreted in urine. Thus, the quantification of the OH-CHZ following enzymatic hydrolysis of CHZ-derived glucuronide appears to be a reliable assay to measure the CYP2E1 activity without direct detection of this glucuronide. However, OH-CHZ hydrolyzed from urinary glucuronide accounts for less than 80% of the CHZ administrated dose in humans leading to postulate the production of other unidentified metabolites. Moreover, the Uridine 5'-diphospho-glucuronosyltransferase (UGT) involved in the hepatic glucuronidation of OH-CHZ has not yet been identified. In this study, we used recombinant HepG2 cells expressing CYP2E1, metabolically competent HepaRG cells, primary hepatocytes and precision-cut human liver slices to identify metabolites of CHZ (300 μM) by high pressure liquid chromatography-UV and liquid-chromatography-mass spectrometry analyses. Herein, we report the detection of the CHZ-O-glucuronide (CHZ-O-Glc) derived from OH-CHZ in culture media but also in mouse and human urine and we identified a novel CHZ metabolite, the CHZ-N-glucuronide (CHZ-N-Glc), which is resistant to enzymatic hydrolysis and produced independently of CHZ hydroxylation by CYP2E1. Moreover, we demonstrate that UGT1A1, 1A6 and 1A9 proteins catalyze the synthesis of CHZ-O-Glc while CHZ-N-Glc is produced by UGT1A9 specifically. Together, we demonstrated that hydrolysis of CHZ-O-Glc is required to reliably quantify CYP2E1 activity because of the rapid transformation of OH-CHZ into CHZ-O-Glc and identified the CHZ-N-Glc produced independently of the CYP2E1 activity. Our results also raise the questions of the contribution of CHZ-N-Glc in the overall CHZ metabolism and of the quantification of CHZ glucuronides in vitro and in vivo for measuring UGT1A activities.
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Affiliation(s)
- Nicolas Quesnot
- Inserm, INRA, Univ Rennes, Institut NUMECAN (Nutrition Metabolisms and Cancer) UMR-A 1341, UMR-S 1241, 35000, Rennes, France
- Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Simon Bucher
- Inserm, INRA, Univ Rennes, Institut NUMECAN (Nutrition Metabolisms and Cancer) UMR-A 1341, UMR-S 1241, 35000, Rennes, France
| | - Christina Gade
- Department of Clinical Pharmacology, Bispebjerg Hospital, 23 Bispebjerg Bakke, 2400, Copenhagen, NV, Denmark
| | - Manuel Vlach
- Inserm, INRA, Univ Rennes, Institut NUMECAN (Nutrition Metabolisms and Cancer) UMR-A 1341, UMR-S 1241, 35000, Rennes, France
| | - Elise Vene
- Inserm, INRA, Univ Rennes, Institut NUMECAN (Nutrition Metabolisms and Cancer) UMR-A 1341, UMR-S 1241, 35000, Rennes, France
| | - Samuel Valença
- Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Thomas Gicquel
- Inserm, INRA, Univ Rennes, Institut NUMECAN (Nutrition Metabolisms and Cancer) UMR-A 1341, UMR-S 1241, 35000, Rennes, France
| | - Helle Holst
- Department of Clinical Pharmacology, Bispebjerg Hospital, 23 Bispebjerg Bakke, 2400, Copenhagen, NV, Denmark
| | - Marie-Anne Robin
- Inserm, INRA, Univ Rennes, Institut NUMECAN (Nutrition Metabolisms and Cancer) UMR-A 1341, UMR-S 1241, 35000, Rennes, France
| | - Pascal Loyer
- Inserm, INRA, Univ Rennes, Institut NUMECAN (Nutrition Metabolisms and Cancer) UMR-A 1341, UMR-S 1241, 35000, Rennes, France.
- Institut NuMeCan, Inserm U1241, Hôpital Pontchaillou, 35033, Rennes, France.
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20
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Gade C, Dalhoff K, Petersen TS, Riis T, Schmeltz C, Chabanova E, Christensen HR, Mikus G, Burhenne J, Holm JC, Holst H. Higher chlorzoxazone clearance in obese children compared with nonobese peers. Br J Clin Pharmacol 2018; 84:1738-1747. [PMID: 29618168 DOI: 10.1111/bcp.13602] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Revised: 03/20/2018] [Accepted: 03/26/2018] [Indexed: 12/21/2022] Open
Abstract
AIMS To test the in vivo activity of Cytochrome P450 (CYP) 2E1 in obese children vs. nonobese children, aged 11-18 years. Secondly, whether the activity of CYP2E1 in these patients is associated with NALFD, diabetes or hyperlipidaemia. METHODS Seventy children were divided into groups by body mass index (BMI) standard deviation score (SDS). All children received 250 mg oral chlorzoxazone (CLZ) as probe for CYP2E1 activity. Thirteen blood samples and 20-h urine samples were collected per participant. RESULTS Obese children had an increased oral clearance and distribution of CLZ, indicating increased CYP2E1 activity, similar to obese adults. The mean AUC0-∞ value of CLZ was decreased by 46% in obese children compared to nonobese children. The F was was increased twofold in obese children compared to nonobese children, P < 0.0001. Diabetic biomarkers were significantly increased in obese children, while fasting blood glucose and Hba1c levels were nonsignificant between groups. Liver fat content was not associated with CLZ Cl. CONCLUSION Oral clearance of CLZ was increased two-fold in obese children vs. nonobese children aged 11-18 years. This indicates an increased CYP2E1 activity of clinical importance, and dose adjustment should be considered for CLZ.
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Affiliation(s)
- C Gade
- Department of Clinical Pharmacology, Copenhagen University Hospital, Bispebjerg and Frederiksberg, Denmark
| | - K Dalhoff
- Department of Clinical Pharmacology, Copenhagen University Hospital, Bispebjerg and Frederiksberg, Denmark
| | - T S Petersen
- Department of Clinical Pharmacology, Copenhagen University Hospital, Bispebjerg and Frederiksberg, Denmark
| | - T Riis
- Department of Clinical Pharmacology, Copenhagen University Hospital, Bispebjerg and Frederiksberg, Denmark
| | - C Schmeltz
- Children's Obesity Clinic, European Center of Management (EASO). Department of Pediatrics, Zealand University Hospital, Holbaek, Denmark
| | - E Chabanova
- Faculty of Health and Medical Sciences, Copenhagen University, Department of Radiology, Herlev and Gentofte Hospital, Denmark
| | - H R Christensen
- Department of Clinical Pharmacology, Copenhagen University Hospital, Bispebjerg and Frederiksberg, Denmark
| | - G Mikus
- Department of Clinical Pharmacology and Pharmacoepidemiology, University of Heidelberg, Germany
| | - J Burhenne
- Department of Clinical Pharmacology and Pharmacoepidemiology, University of Heidelberg, Germany
| | - J C Holm
- The Children's Obesity Clinic, Department of Paediatrics, Copenhagen University Hospital Holbaek, Denmark.,Novo Nordisk Foundation Centre for Basic Metabolic Research, Denmark.,Department of Clinical Medicine, University of Copenhagen, Denmark
| | - H Holst
- Department of Clinical Pharmacology, Copenhagen University Hospital, Bispebjerg and Frederiksberg, Denmark
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