Abstract:
:Three first-line antituberculosis drugs, isoniazid, rifampicin and pyrazinamide, may induce liver injury, especially isoniazid. This antituberculosis drug-induced liver injury ranges from a mild to severe form, and the associated mortality cases are not rare. The major drug-metabolizing enzyme of isoniazid is N-acetyltransferase. Other possible enzymes are CYP2E1 and glutathione S-transferase. There is evidence that polymorphisms of the genes that encode these enzymes may influence the activity of the corresponding drug-metabolizing enzymes. Recent studies demonstrated that these genetic polymorphisms may be associated with the susceptibility to antituberculosis drug-induced liver injury. The proposed risk-associated genotypes are NAT2 slow acetylator (without wild-type NAT2*4 allele), CYP2E1 *1A/*1A (homozygous wild type) and homozygous null GSTM1 genotype. Although the available data in the field are still limited and warrants further confirmation in different ethnic populations with larger sample sizes, it still cast some light on the application of these pharmacogenetic or pharmacogenomic approaches to prevent grave antituberculosis drug-induced liver injury in the near future.
journal_name
Expert Opin Drug Metab Toxicoljournal_title
Expert opinion on drug metabolism & toxicologyauthors
Huang YSdoi
10.1517/17425255.3.1.1subject
Has Abstractpub_date
2007-02-01 00:00:00pages
1-8issue
1eissn
1742-5255issn
1744-7607journal_volume
3pub_type
杂志文章,评审abstract:INTRODUCTION:A major challenge in transplantation is improving long-term organ transplant and patient survival. Immunosuppressants protect the transplant organ from alloimmune reactions, but sometimes also exhibit limiting side effects. The key to improving long-term outcome following transplantation is the selection o...
journal_title:Expert opinion on drug metabolism & toxicology
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abstract:INTRODUCTION:Hemophilia A is a bleeding disorder resulting from a lack of clotting factor VIII (FVIII), and treatment typically consists of prophylactic replacement of the deficient factor. However, high between subject variability precludes the development of a 'one size fits all' dosing strategy and necessitates an i...
journal_title:Expert opinion on drug metabolism & toxicology
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abstract:INTRODUCTION:For orally administered drugs, their intestinal absorption and hepatic metabolism are key players for determining a drug's systemic bioavailability and thus therapeutic effect. Drug absorption and metabolism are both complicated processes, with many physicochemical and physiological factors involved. Under...
journal_title:Expert opinion on drug metabolism & toxicology
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abstract:INTRODUCTION:Drug ototoxicity represents one of the main preventable causes of deafness. Ototoxicity is a trait shared by aminoglycoside and macrolide antibiotics, antimalarial medications, loop diuretics, platinum-based chemotherapeutic agents, some NSAIDs and most recently described, acetaminophen when abused with na...
journal_title:Expert opinion on drug metabolism & toxicology
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abstract:INTRODUCTION:Bioaccessibility is a growing area of research in the field of risk assessment. As polycyclic aromatic hydrocarbons (PAHs) are ubiquitous environmental pollutants, they are the toxicants of focus to establish cancer risks in humans. Orally ingested PAHs also cause toxicity and even affect the pharmacokinet...
journal_title:Expert opinion on drug metabolism & toxicology
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abstract:INTRODUCTION:Extensive within-population variability is the essence of neonatal pharmacology. Despite this, infants remain one of the last therapeutic orphans. Together with additional legal initiatives, tailoring of already available tools (modeling, covariates, pharmacovigilance) may significantly improve pharmacothe...
journal_title:Expert opinion on drug metabolism & toxicology
pub_type: 杂志文章,评审
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更新日期:2014-08-01 00:00:00
abstract:INTRODUCTION:Gut microbiota plays critical roles in drug metabolism. The variation of gut microbiota contributes to the interindividual differences toward drug therapy including drug-induced toxicity and efficacy. Accordingly, the investigation and elucidation of gut microbial impacts on drug metabolism and toxicity wi...
journal_title:Expert opinion on drug metabolism & toxicology
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abstract::Introduction: Graft-versus-host disease (GVHD) is the most common complication of hematopoietic stem cell transplantation (HSCT); therefore, the prevention of GVHD is important for a successful treatment. Tacrolimus (Tac), a calcineurin inhibitor, has been widely used for the prophylaxis of GVHD in HSCT recipients. Ar...
journal_title:Expert opinion on drug metabolism & toxicology
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abstract:INTRODUCTION:Neonatal patients, because of the inability of their immune system to properly respond to microbial challenge, are highly susceptible to viral infections. Immunoglobulins, monoclonal antibody and antiviral drugs are used for prophylaxis and treatment of viral diseases in neonates. Neonates and, especially,...
journal_title:Expert opinion on drug metabolism & toxicology
pub_type: 杂志文章,评审
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更新日期:2015-01-01 00:00:00
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journal_title:Expert opinion on drug metabolism & toxicology
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更新日期:2008-01-01 00:00:00
abstract:INTRODUCTION:Therapeutic hypothermia is being employed clinically due to its neuro-protective benefits. Both critical illness and therapeutic hypothermia significantly affect drug disposition, potentially contributing to drug-therapy and drug-disease interactions. Currently, there is limited information on the known al...
journal_title:Expert opinion on drug metabolism & toxicology
pub_type: 杂志文章,评审
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更新日期:2011-07-01 00:00:00
abstract:INTRODUCTION:Epigenetics is a rapidly growing field describing heritable alterations in gene expression that do not involve DNA sequence variations. Advances in epigenetics and epigenomics have influenced pharmacology, leading to the development of a new specialty, pharmacoepigenetics, the study of the epigenetic basis...
journal_title:Expert opinion on drug metabolism & toxicology
pub_type: 杂志文章,评审
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更新日期:2017-04-01 00:00:00
abstract:INTRODUCTION:Gestational diabetes mellitus (GDM) complicates 10% of all pregnancies and is defined as hyperglycemia first noted during pregnancy. Rates of GDM are rising and untreated GDM results in complications for both mother and fetus. GDM is often managed by diet and exercise but 30-40% of women will require pharm...
journal_title:Expert opinion on drug metabolism & toxicology
pub_type: 杂志文章,评审
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更新日期:2016-06-01 00:00:00
abstract:INTRODUCTION:The second-line treatment of endometriosis-related pain symptoms includes injectable depot formulations of gonadotropin-releasing hormone analogs (GnRH-as). These drugs improve the symptomatology by inducing a hypoestrogenic status and a consequent regression of endometriotic implants. However, GnRH-a may ...
journal_title:Expert opinion on drug metabolism & toxicology
pub_type: 杂志文章
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abstract:INTRODUCTION:Within recent years, glucagon-like peptide 1 receptor agonists (GLP-1-RA) have emerged as a new treatment option for type 2 diabetes. The GLP-1-RA are administered subcutaneously and differ substantially in pharmacokinetic profiles. AREAS COVERED:This review describes the pharmacokinetics and safety aspec...
journal_title:Expert opinion on drug metabolism & toxicology
pub_type: 杂志文章,评审
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更新日期:2013-01-01 00:00:00
abstract::Luminogenic cytochrome P450 (CYP) assays couple CYP enzyme activity to firefly luciferase luminescence in a technology called P450-Glo(TM) (Promega). Luminogenic substrates are used in assays of human CYP1A1, -1A2, -1B1, -2C8, -2C9, -2C19, -2D6, -2J2, -3A4, -3A7, -4A11, -4F3B, -4F12 and -19. The assays detect dose-dep...
journal_title:Expert opinion on drug metabolism & toxicology
pub_type: 杂志文章,评审
doi:10.1517/17425255.2.4.629
更新日期:2006-08-01 00:00:00
abstract::Introduction: The target concentration strategy uses PKPD information for dose determination. Models have also quantified exposure-response relationships, improved understanding of developmental pharmacokinetics, rationalized dose prescription, provided insight into the importance of covariate information, explained d...
journal_title:Expert opinion on drug metabolism & toxicology
pub_type: 杂志文章,评审
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更新日期:2020-04-01 00:00:00
abstract::There is an increasing recognition within the pharmaceutical industry of the importance of the ADME studies in drug registration. Consequently, there has been a drive in recent times to conduct the ADME studies as early as possible in the development programme. There are, however, regulatory barriers, particularly in ...
journal_title:Expert opinion on drug metabolism & toxicology
pub_type: 杂志文章,评审
doi:10.1517/17425255.1.1.23
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abstract:INTRODUCTION:Luteinizing hormone-releasing hormone agonists such as leuprolide acetate (LA) are the most frequently utilized treatment of advanced prostate cancer as the regimen for achieving androgen deprivation therapy (ADT). The efficacy of LA is determined by extent of testosterone (T) suppression in prostate cance...
journal_title:Expert opinion on drug metabolism & toxicology
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journal_title:Expert opinion on drug metabolism & toxicology
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journal_title:Expert opinion on drug metabolism & toxicology
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journal_title:Expert opinion on drug metabolism & toxicology
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journal_title:Expert opinion on drug metabolism & toxicology
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abstract:INTRODUCTION:Pharmacogenomics is the field that studies an individualized treatment approach for patients' medication regimen that can impact drug safety, productivity, and personalized health care. Pharmacogenomics characterizes the genetic differences in metabolic pathways which can affect a patient's individual resp...
journal_title:Expert opinion on drug metabolism & toxicology
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abstract:INTRODUCTION:The key feature of the newborn is its fast age-dependent maturation, resulting in extensive variability in pharmacokinetics and -dynamics, further aggravated by newly emerging covariates like treatment modalities, environmental issues or pharmacogenetics. This makes clinical research in neonates relevant a...
journal_title:Expert opinion on drug metabolism & toxicology
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abstract::Introduction: Although the hepatotoxicity of acetaminophen is a well-known problem, the search for reliable biomarker of toxicity is still a current issue as clinical tools are missing to assess patients intoxicated following chronic use, sequential ingestion, use of modified release formulations or in case of delayed...
journal_title:Expert opinion on drug metabolism & toxicology
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journal_title:Expert opinion on drug metabolism & toxicology
pub_type: 杂志文章,评审
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更新日期:2007-06-01 00:00:00
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journal_title:Expert opinion on drug metabolism & toxicology
pub_type: 杂志文章,评审
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更新日期:2005-08-01 00:00:00
abstract:INTRODUCTION:Boceprevir is an NS3/NS4A serine protease inhibitor that was approved for use in Hepatitis C virus (HCV) genotype 1 patients by the US Food and Drug Administration (FDA) in May 2011. The approval of this protease inhibitor marked a major paradigm shift in the treatment of HCV, as it was one of the first of...
journal_title:Expert opinion on drug metabolism & toxicology
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更新日期:2013-12-01 00:00:00
abstract:INTRODUCTION:Whereas in the past, (Q)SAR methods have been largely used to support the design of new drugs, in the last few decades, there has been a new interest in its applications for the assessment of drug safety. In particular, the ICH M7 guideline has introduced the concept that (Q)SAR predictions for the Ames mu...
journal_title:Expert opinion on drug metabolism & toxicology
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更新日期:2020-08-01 00:00:00