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Bladzijde 1 van 624 resultaten
DZNep, inhibitor of S-adenosylhomocysteine hydrolase, down-regulates expression of SETDB1 H3K9me3 HMTase in human lung cancer cells.
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3-Deazaneplanocin A (DZNep), an epigenetic anticancer drug, leads to the indirect suppression of S-adenosyl methionine-dependent cellular methylations by inhibiting S-adenosyl homocystein (AdoHcy) hydrolase. Although it is well known that DZNep targets the degradation of EZH2 protein, H3K27me3
Cytochrome P4501A1 and microsomal epoxide hydrolase gene polymorphisms: gene-environment interaction and risk of prostate cancer.
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The role of low penetrance genes and environmental factors in the etiology of prostate cancer (PCa) is unclear. Most procarcinogens require metabolic activation by CYP4501A1, whereas microsomal epoxide hydrolase (mEH) is involved in the detoxification. In our case-control study, we assessed whether
Regulation and expression of four cytochrome P-450 isoenzymes, NADPH-cytochrome P-450 reductase, the glutathione transferases B and C and microsomal epoxide hydrolase in preneoplastic and neoplastic lesions in rat liver.
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Nitrosamine-induced hepatocarcinogenesis has been used to investigate the regulation and expression of different drug-metabolizing enzymes in preneoplastic and neoplastic lesions in the female Wistar rat. The enzymes investigated were two phenobarbital-inducible cytochrome P-450 (cyt. P-450)
Effect of growth and sodium butyrate on brush border membrane-associated hydrolases in human colorectal cancer cell lines.
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The activities of brush border membrane-associated hydrolases such as alkaline phosphatase (Alkpase), aminopeptidase, dipeptidyl aminopeptidase IV (DAP-IV), sucrase, lactase, and trehalase were studied in 14 different human colorectal cancer cell lines. The effect of sodium butyrate, a known
Genotyping of the lactase-phlorizin hydrolase c/t-13910 polymorphism by means of a new rapid denaturing high-performance liquid chromatography-based assay in healthy subjects and colorectal cancer patients.
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Adult-type hypolactasia results from the progressive decline of lactase-phlorizin hydrolase activity in enterocytes after weaning. Lactase nonpersistence may determine a primary lactose intolerance with reduced diary product consumption, which is possibly related to an increased risk of colon
Genetically lowered microsomal epoxide hydrolase activity and tobacco-related cancer in 47,000 individuals.
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BACKGROUND
Two functional polymorphisms of the microsomal epoxide hydrolase (mEH) gene (EPHX1), Tyr113His (rs1051740) and His139Arg (rs2234922), have variably been found to influence susceptibility to various cancer forms. We tested whether genetically lowered mEH activity affects risk of developing
Role of epoxide hydrolase 1 gene polymorphisms in esophageal cancer in a high-risk area in India.
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OBJECTIVE
Microsomal epoxide hydrolase 1 (EPHX1) is involved in the metabolism of environmental and tobacco carcinogens. Tobacco smoking, betel quid chewing, and alcohol consumption are the major known risk factors for esophageal cancer. The present case-control study evaluated the influence of
Genetic polymorphisms of cytochrome P450 CYP1A1 (*2A) and microsomal epoxide hydrolase gene, interactions with tobacco-users, and susceptibility to bladder cancer: a study from North India.
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The role of low penetrance genes and environmental factors in the etiology of bladder cancer (CaB) is unclear, but may involve genetic and environmental factors. Most environmental pro-carcinogens require metabolic activation by phase I enzymes (CYP450s), However, phase II enzyme (i.e., microsomal
Monooxygenase, epoxide hydrolase, and glutathione-S-transferase activities in human lung. Variation between groups of bronchogenic carcinoma and non-cancer patients and interindividual differences.
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Activities of microsomal monooxygenases (MO) and epoxide hydrolase (EH) and cytoplasmic glutathione-S-transferases (GST) will contribute to controlling the pool of reactive intermediates, enzymatically derived from polynuclear aromatic hydrocarbons (PAH) within the cells of target organs such as the
Association between head and neck cancer and microsomal epoxide hydrolase genotypes.
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Tobacco-associated carcinogens are catalyzed by microsomal epoxide hydrolase (mEH). Combinations of the Y113H and H139R polymorphic EPHX1 variants have been assumed to alter the enzyme activity and thus the risk of squamous cell head and neck cancer (SCCHN). Based on in vitro data, a putative low,
Epoxide hydrolase genotype and orolaryngeal cancer risk: interaction with GSTM1 genotype.
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The human microsomal epoxide hydrolase (EH) gene contains polymorphic alleles which are associated with altered EH activity and may be linked to increased risk for tobacco-related cancers. The objective was to examine the role of EH polymorphisms in orolaryngeal cancer risk. The prevalence of the EH
The interaction between microsomal epoxide hydrolase polymorphisms and cumulative cigarette smoking in different histological subtypes of lung cancer.
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Microsomal epoxide hydrolase (mEH) is involved in the metabolism of environmental and tobacco carcinogens. Smaller studies found inconsistent results in the relationship between mEH polymorphisms and lung cancer risk. We investigated the two polymorphisms of mEH in 974 Caucasian lung cancer patients
Microsomal epoxide hydrolase polymorphisms, cigarette smoking and prostate cancer risk in the Slovak population.
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Polymorphisms in tobacco carcinogen metabolizing enzymes may generate interindividual variations towards the risk of developing prostate cancer. One of these enzymes is microsomal epoxide hydrolase (EPHX1) which metabolizes polycyclic aromatic hydrocarbons, or PAH, carcinogens found in cigarette
High-activity microsomal epoxide hydrolase genotypes and the risk of oral, pharynx, and larynx cancers.
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Human microsomal epoxide hydrolase (mEH), encoded by the EPHX1 gene, is involved in the metabolism of tobacco carcinogens. We investigated the effect of exon 3 and 4 polymorphisms of the EPHX1 gene in 121 patients with cancers of the oral cavity/pharynx, 129 patients with cancer of the larynx, and
Lung cancer risk in relation to genetic polymorphisms of microsomal epoxide hydrolase among African-Americans and Caucasians in Los Angeles County.
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Microsomal epoxide hydrolase participates in the metabolism of benzo[a]pyrene, an important carcinogen in tobacco smoke. Two relatively common polymorphisms of the microsomal epoxide hydrolase gene that influence enzyme activity have been described. An association between genetic variation in
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