نتایج جستجو برای: ugt1a1 enzyme

تعداد نتایج: 241868  

2017
Yu Bai Hai-wei Wu Xu Ma Ying Liu Yan-hua Zhang

PURPOSE A retrospective study was performed to analyze the relationship between uridine diphosphate glucuronosyltransferase 1A1 (UGT1A1) *6/*28 gene polymorphisms and adverse reactions associated with irinotecan (CPT-11)-based chemotherapy. The correlation between UGT1A1 polymorphisms and the clinical efficacy of CPT-11 was also analyzed, along with the influence of age and tumor type. PATIEN...

2012
Cody J. Peer Tristan M. Sissung AeRang Kim Lokesh Jain Sukyung Woo Erin R. Gardner C. Tyler Kirkland Sarah M. Troutman Bevin C. English Emily D. Richardson Joel Federspiel David Venzon Elise Kohn Shivaani Kummar Robert Yarchoan Giuseppe Giaccone William D. Figg

Purpose: Several case reports suggest sorafenib exposure and sorafenib-induced hyperbilirubinemiamay be related to a (TA)5/6/7 repeat polymorphism in UGT1A1 28 (UGT, uridine glucuronosyl transferase). We hypothesized that sorafenib inhibits UGT1A1 and individuals carrying UGT1A1 28 and/or UGT1A9 variants experience greater sorafenib exposure and greater increase in sorafenib-induced plasma bili...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2010
Ryoichi Fujiwara Nghia Nguyen Shujuan Chen Robert H Tukey

High levels of unconjugated bilirubin (UCB) in newborn children is associated with a reduction in hepatic UDP glucuronosyltransferase (UGT) 1A1 activity that can lead to CNS toxicity, brain damage, and even death. Little is known regarding those events that lead to UCB accumulation in brain tissue, and therefore, we sought to duplicate this condition in mice. The human UGT1 locus, encoding all ...

Journal: :Drug metabolism and pharmacokinetics 2014
Maiko Abumiya Naoto Takahashi Takenori Niioka Yoshihiro Kameoka Naohito Fujishima Hiroyuki Tagawa Kenichi Sawada Masatomo Miura

Nilotinib potently inhibits human uridine diphosphate-glucuronosyltransferase (UGT1A1) activity, causing hyperbilirubinemia. We investigated the influence of UGT1A1 polymorphisms and nilotinib plasma trough concentrations (C0) on nilotinib-induced hyperbilirubinemia in 34 Japanese patients with chronic myeloid leukemia (CML). The proportion of patients with hyperbilirubinemia was significantly ...

Journal: :Drug metabolism and disposition: the biological fate of chemicals 2009
Ye Li David Buckley Shuang Wang Curtis D Klaassen Xiao-bo Zhong

Transcription of UDP-glucuronosyltransferase (UGT) 1A1 is regulated by the transcription factors, constitutive androstane receptor (CAR), pregnane X receptor (PXR), glucocorticoid receptor (GR), hepatocyte nuclear factor (HNF) 1 alpha, and HNF4 alpha. The purpose of this study was to determine whether the genetic polymorphisms in the RNA polymerase II core promoter and the upstream phenobarbita...

Journal: :Molecules 2016
Yu Fen Zheng Jee Sun Min Doyun Kim Jung Bae Park Sung-Wook Choi Eun Seong Lee Kun Na Soo Kyung Bae

Despite the widespread use of the five major xanthophylls astaxanthin, β-cryptoxanthin, canthaxanthin, lutein, and zeaxanthin as dietary supplements, there have been no studies regarding their inhibitory effects on hepatic UDP-glucuronosyltransferases (UGTs). Here, we evaluated the inhibitory potential of these xanthophylls on the seven major human hepatic UGTs (UGT1A1, UGT1A3, UGT1A4, UGT1A6, ...

2015
Said Y. Alkindi Anil Pathare Shoaib Al Zadjali Vinodhkumar Panjwani Fauzia Wasim Hammad Khan Pradeep Chopra Rajagopal Krishnamoorthy Salam Alkindi

BACKGROUND We explored the potential relationship between steady state serum bilirubin levels and the incidence of cholelithiasis in the context of UGT1A1 gene A(TA)nTAA promoter polymorphism in Omani sickle cell anemia (SCA) patients, homozygotes for African (Benin and Bantu) and Arab-Indian β(S) haplotypes, but sharing the same microgeographical environment and comparable life style factors. ...

Journal: :Human molecular genetics 2005
Deborah French Mark R Wilkinson Wenjian Yang Luc de Chaisemartin Edwin H Cook Soma Das Mark J Ratain William E Evans James R Downing Ching-Hon Pui Mary V Relling

Common, functional, germline genetic polymorphisms have been associated with clinical cancer outcomes. Little attention has been paid to the potential phenotypic consequences of germline genetic variation on downstream genes. We determined the germline status of 16 well-characterized functional polymorphisms in 126 children with newly diagnosed acute lymphoblastic leukemia (ALL). We assessed wh...

2009
Hsiang-Lin Tsai Chin-Fan Chen Chien-Yu Lu Wei-Yu Fang Deng-Chyang Wu I-Chen Wu Maw-Chang Sheen Shiu-Ru Lin Jaw-Yuan Wang

Aim: To investigate the association between UDP-glucuronosyltransferase 1A1 (UGT1A1) genotypes and severe toxicity in Taiwanese patients with metastatic colorectal cancer (mCRC) receiving irinotecan chemotherapy. Methods: We genotyped the UGT1A1 gene by direct sequencing. All the patients were evaluated to see whether the variant UGT1A1 genotype would correlate to severe toxicity of irinotecan ...

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