Search Results - "Neal, GE"
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Insecticidal and vertebrate toxicity associated with ethnobotanicals used as post-harvest protectants in Ghana
Published in Food and chemical toxicology (01-03-2001)“…Six plant species ( Cassia sophera, Chamaecrista nigricans, Mitragyna inermis, Ocimum americanum, Securidaca longepedunculata and Synedrella nodiflora)…”
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2
Increased bioactivation of dihaloalkanes in rat liver due to induction of class theta glutathione S-transferase T1-1
Published in Biochemical journal (01-11-1998)“…A characteristic feature of the class Theta glutathione S-transferase (GST) T1-1 is its ability to activate dichloromethane and dibromoethane by catalysing the…”
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3
Regulation of rat glutathione S-transferase A5 by cancer chemopreventive agents: Mechanisms of inducible resistance to aflatoxin B 1
Published in Chemico-biological interactions (24-04-1998)“…The rat can be protected against aflatoxin B 1 (AFB 1) hepatocarcinogenesis by being fed on a diet containing the synthetic antioxidant ethoxyquin. Evidence…”
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4
Resistance to aflatoxin B1 is associated with the expression of a novel aldo-keto reductase which has catalytic activity towards a cytotoxic aldehyde-containing metabolite of the toxin
Published in Cancer research (Chicago, Ill.) (01-09-1993)“…Fischer 344 rats readily develop liver cancer when exposed to aflatoxin B1 (AFB1) but dietary administration of the antioxidant ethoxyquin (EQ) provides…”
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5
Regulation of rat glutathione S-transferase A5 by cancer chemopreventive agents: mechanisms of inducible resistance to aflatoxin B1
Published in Chemico-biological interactions (24-04-1998)“…The rat can be protected against aflatoxin B1 (AFB1) hepatocarcinogenesis by being fed on a diet containing the synthetic antioxidant ethoxyquin. Evidence…”
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6
Evidence for involvement of multiple forms of cytochrome P-450 in aflatoxin B1 metabolism in human liver
Published in Proceedings of the National Academy of Sciences - PNAS (01-11-1990)“…Liver cancer is a major cause of premature death in many areas of Africa and Asia and its incidence is strongly correlated with exposure to aflatoxin B1…”
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7
Sequential study of the chronic nephrotoxicity induced by dietary administration of ethoxyquin in Fischer 344 rats
Published in Fundamental and applied toxicology (01-02-1992)“…Groups of 3-week-old male and female Fischer 344 rats were administered 0.5% ethoxyquin-containing diet for varying periods of time, ranging from 4 weeks up to…”
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Cellular response to cancer chemopreventive agents: contribution of the antioxidant responsive element to the adaptive response to oxidative and chemical stress
Published in Biochemical Society Symposia (1999)“…Cancer chemopreventive agents can act by inhibiting either the acquisition of mutations or the neoplastic processes that occur subsequent to mutagenesis…”
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Genetic implications in the metabolism and toxicity of mycotoxins
Published in Toxicology Letters (01-12-1995)“…In common with many xenobiotics, metabolic activation and detoxification play crucial roles in the determination of a toxic response of animal species,…”
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Journal Article Conference Proceeding -
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Ethoxyquin-induced resistance to aflatoxin B1 in the rat is associated with the expression of a novel alpha-class glutathione S-transferase subunit, Yc2, which possesses high catalytic activity for aflatoxin B1-8,9-epoxide
Published in Biochemical journal (15-10-1991)“…A purification scheme has been devised for two ethoxyquin-inducible Alpha-class glutathione S-transferases (GSTs) which possess at least 25-fold greater…”
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Differences in ethoxyquin nephrotoxicity between male and female F344 rats
Published in Food and chemical toxicology (01-02-2003)“…Dose–response studies have shown a sharp threshold for the renal papillary toxic effect in male rats between 0.25% and 0.5% ethoxyquin (Eto) in the diet over 6…”
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12
Molecular cloning and heterologous expression of a cDNA encoding a mouse glutathione S-transferase Yc subunit possessing high catalytic activity for aflatoxin B1-8,9-epoxide
Published in Biochemical journal (01-07-1992)“…Resistance to the carcinogenic effects of aflatoxin B1 (AFB1) in the mouse is due to the constitutive expression of an Alpha-class glutathione S-transferase…”
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13
Contribution of the glutathione S-transferases to the mechanisms of resistance to aflatoxin B1
Published in Pharmacology & therapeutics (Oxford) (1991)“…The harmful effects of Aflatoxin B1 (AFB1) are a consequence of it being metabolized to AFB1-8,9-epoxide, a compound that serves as an alkylating agent and…”
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14
Regulation of carbonyl-reducing enzymes in rat liver by chemoprotectors
Published in Cancer research (Chicago, Ill.) (15-06-1996)“…Feeding rats on diets containing the synthetic antioxidants ethoxyquin, butylated hydroxyanisole, and oltipraz results in 15-, 9-, and 6-fold increases,…”
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15
Metabolism and toxicity of aflatoxins M sub(1) and B sub(1) in human-derived in vitro systems
Published in Toxicology and applied pharmacology (01-07-1998)“…Aflatoxin M sub(1) (AFM sub(1)) is the principal hydroxylated aflatoxin metabolite present in the milk of dairy cows fed a diet contaminated with aflatoxin B…”
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In vitro activation of the human Harvey-ras proto-oncogene by aflatoxin B sub(1)
Published in Carcinogenesis (New York) (01-05-1997)“…Activation of ras proto-oncogenes occurs frequently in vivo in chemically induced rodent tumours, including rat hepatomas induced by aflatoxin B sub(1). This…”
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Mutations associated with in vivo aflatoxin B sub(1)-induced carcinogenesis need not be present in the in vitro transformations by this toxin
Published in Cancer letters (01-04-1999)“…Ingestion of aflatoxin B sub(1) is implicated in the high incidence of human liver cancers in several developing countries. An association has been detected…”
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Ethinyl estradiol-induced cell proliferation in rat liver. Involvement of specific populations of hepatocytes
Published in Carcinogenesis (New York) (01-12-1992)“…Hepatocyte proliferation was analyzed in vivo during the time course of continuous administration to rats of the liver tumor promoter ethinyl estradiol (EE) at…”
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Chemoprevention of aflatoxin B sub(1)-induced carcinogenesis by indole-3-carbinol in rat liver--predicting the outcome using early biomarkers
Published in Carcinogenesis (New York) (01-10-1998)“…Indole-3-carbinol (I3C) was examined for its ability to inhibit aflatoxin B sub(1) (AFB sub(1))-induced hepatocarcinogenesis in male Fischer rats when…”
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Mechanism of action of dietary chemoprotective agents in rat liver: Induction of phase I and II drug metabolizing enzymes and aflatoxin B sub(1) metabolism
Published in Carcinogenesis (New York) (01-09-1997)“…A range of potential chemoprotective agents, most of them natural dietary constituents, has been examined for ability to modulate both phase I (cytochrome P450…”
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