tryptophan-P-1
trp-P-1
 
Notes:
Powerful mutacarcinogen found in cooked foods
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CAS Number: 62450-06-0Picture of molecule3D/inchi
FDA UNII: LAH2R5Z22D
Nikkaji Web: J1.108H
Beilstein Number: 0653052
XlogP3: 2.00 (est)
Molecular Weight: 211.26761000
Formula: C13 H13 N3
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Category: information only not used for fragrances or flavors
 
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Physical Properties:
Assay: 95.00 to 100.00 % 
Food Chemicals Codex Listed: No
Soluble in:
 water, 61.72 mg/L @ 25 °C (est)
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Organoleptic Properties:
 
Odor and/or flavor descriptions from others (if found).
 
 
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Cosmetic Information:
None found
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Suppliers:
 None found
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Safety Information:
 
Hazards identification
 
Classification of the substance or mixture
GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)
None found.
GHS Label elements, including precautionary statements
 
Pictogram
 
Hazard statement(s)
None found.
Precautionary statement(s)
None found.
Oral/Parenteral Toxicity:
Not determined
Dermal Toxicity:
Not determined
Inhalation Toxicity:
Not determined
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Safety in Use Information:
Category: information only not used for fragrances or flavors
Recommendation for tryptophan-P-1 usage levels up to:
 not for fragrance use.
 
Recommendation for tryptophan-P-1 flavor usage levels up to:
 not for flavor use.
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Safety References:
EPI System: View
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EPA GENetic TOXicology: Search
EPA ACToR: Toxicology Data
EPA Substance Registry Services (SRS): Registry
Laboratory Chemical Safety Summary : 5284474
National Institute of Allergy and Infectious Diseases: Data
 1,4-dimethyl-5H-pyrido[4,3-b]indol-3-amine
Chemidplus: 0062450060
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References:
 1,4-dimethyl-5H-pyrido[4,3-b]indol-3-amine
NIST Chemistry WebBook: Search Inchi
Pubchem (cid): 5284474
Pubchem (cas): 62450-06-0
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Other Information:
(IUPAC): Atomic Weights of the Elements 2011 (pdf)
Videos: The Periodic Table of Videos
tgsc: Atomic Weights use for this web site
(IUPAC): Periodic Table of the Elements
CHEBI: View
KEGG (GenomeNet): C19306
HMDB (The Human Metabolome Database): HMDB29746
FooDB: FDB000947
ChemSpider: View
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Potential Blenders and core components note
 
None Found
 
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Potential Uses:
None Found
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Occurrence (nature, food, other): note
 not found in nature
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Synonyms:
3-amino-1,4-dimethyl-5H-pyrido(4,3-b)indole
1,4-dimethyl-5H-pyrido[4,3-b]indol-3-amine
1,4-dimethyl-9H-pyrido(4,3-b)indol-3-amine
5H-pyrido(4,3-b)indol-3-amine, 1,4-dimethyl-
 trp-P-1
 trytophan pyrolysate 1
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Articles:
PubMed: Metabolism of Foodborne Heterocyclic Aromatic Amines by Lactobacillus reuteri DSM 20016.
PubMed: Role of human sulfotransferase 1A1 and N-acetyltransferase 2 in the metabolic activation of 16 heterocyclic amines and related heterocyclics to genotoxicants in recombinant V79 cells.
PubMed: Screening of molecular cell targets for carcinogenic heterocyclic aromatic amines by using CALUX® reporter gene assays.
PubMed: Aryl hydrocarbon receptor activation and CYP1A induction by cooked food-derived carcinogenic heterocyclic amines in human HepG2 cell lines.
PubMed: Inhibitory Effect of Rosa rugosa Tea Extract on the Formation of Heterocyclic Amines in Meat Patties at Different Temperatures.
PubMed: Ion-molecule adduct formation in tandem mass spectrometry.
PubMed: Determination of Heterocyclic Amines and Acrylamide in Agricultural Products with Liquid Chromatography-Tandem Mass Spectrometry.
PubMed: Influence of beer marinades on the reduction of carcinogenic heterocyclic aromatic amines in charcoal-grilled pork meat.
PubMed: Influence of food condiments on the formation of carcinogenic heterocyclic amines in cooked chicken and determination by LC-MS/MS.
PubMed: Effects of frying and boiling on the formation of heterocyclic amines in braised chicken.
PubMed: Chemical state of heterocyclic aromatic amines in grilled beef: evaluation by in vitro digestion model and comparison of alkaline hydrolysis and organic solvent for extraction.
PubMed: Caffeine and other methylxanthines as interceptors of food-borne aromatic mutagens: inhibition of Trp-P-1 and Trp-P-2 mutagenic activity.
PubMed: Determination of heterocyclic amines in braised sauce beef.
PubMed: [Interaction of mutagens in binary mixtures using the alkaline comet assay in human lymphocytes].
PubMed: Physicochemical characterisation of dietary fibre components and their ability to bind some process-induced mutagenic heterocyclic amines, Trp-P-1, Trp-P-2, AαC and MeAαC.
PubMed: Photodegradation of environmental mutagens by visible irradiation in the presence of xanthene dyes as photosensitizers.
PubMed: [Simultaneous determination of 9 heterocyclic aromatic amine in poultry products by solid-phase extraction-high performance liquid chromatography].
PubMed: [Sex- and species-differences on xenobiotic-induced toxicity: differences in constitutive and xenobiotic-mediated expression of cytochrome P450 1A subfamily enzymes (CYP1As)].
PubMed: Screening of non-polar heterocyclic amines in urine by microextraction in packed sorbent-fluorimetric detection and confirmation by capillary liquid chromatography.
PubMed: Trp-P-1, a carcinogenic heterocyclic amine, inhibits lipopolysaccharide-induced maturation and activation of human dendritic cells.
PubMed: Bioactivation of Aromatic Amines by Human CYP2W1, An Orphan Cytochrome P450 Enzyme.
PubMed: Simultaneous determination of six non-polar heterocyclic amines in meat samples by supercritical fluid extraction-capillary electrophoresis under fluorimetric detection.
PubMed: Heterocyclic aromatic amine formation in barbecued sardines (Sardina pilchardus) and Atlantic salmon (Salmo salar).
PubMed: Antimutagenic effects of subfractions of Chaga mushroom (Inonotus obliquus) extract.
PubMed: Use of four new human-derived liver-cell lines for the detection of genotoxic compounds in the single-cell gel electrophoresis (SCGE) assay.
PubMed: Suppression of mutagens-induced SOS response by phytoncide solution using Salmonella typhimurium TA1535/pSK1002 umu test.
PubMed: Antimutagenic activity of a novel ascorbic derivative, disodium isostearyl 2-O-L-ascorbyl phosphate.
PubMed: 3-Amino-1,4-dimethyl-5H-pyrido[4,3-b]indole (Trp-P-1) attenuates LPS-induced IL-8 expression by decreasing mRNA stability in THP-1 cells.
PubMed: Suppressive components in rice husk against mutagens-induced SOS response using Salmonella typhimurium TA1535/pSK1002 umu test.
PubMed: Validity of a self-administered food frequency questionnaire in the assessment of heterocyclic amine intake using 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PhIP) levels in hair.
PubMed: Heterocyclic amines in griddled beef steak analysed using a single extract clean-up procedure.
PubMed: Differential effects of heterocyclic amines on poly(ADP-ribose) polymerase-1 and mono-ADP-ribosyltransferase A.
PubMed: Lack of formation of heterocyclic amines in fumes from frying French fries.
PubMed: Antimutagenic and antioxidant properties of phenolic fractions from Andean purple corn (Zea mays L.).
PubMed: Chemical synthesis of 2'-deoxyguanosine-C8 adducts with heterocyclic amines: an application to synthesis of oligonucleotides site-specifically adducted with 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine.
PubMed: Involvement of reactive oxygen species in the immunosuppressive effect of 3-amino-1,4-dimethyl-5H-pyrido[4,3-b]indole (Trp-P-1), a food-born carcinogenic heterocyclic amine.
PubMed: A hepatocarcinogenic tryptophan-pyrolyzate component, Trp-P-1, decreases serum total testosterone level and induces hepatic Cyp1a2 in male mice.
PubMed: Antimutagenicity and DT-diaphorase inducing activity of Gynostemma pentaphyllum Makino extract.
PubMed: 3-Amino-1,4-dimethyl-5H-pyrido[4,3-b]indole (Trp-P-1), a food-born carcinogenic heterocyclic amine, promotes nitric oxide production in murine macrophages.
PubMed: Breast cancer resistance protein (Bcrp1/Abcg2) reduces systemic exposure of the dietary carcinogens aflatoxin B1, IQ and Trp-P-1 but also mediates their secretion into breast milk.
PubMed: Inhibition of DNA repair glycosylases by base analogs and tryptophan pyrolysate, Trp-P-1.
PubMed: Suppression of the SOS-inducing activity of mutagenic heterocyclic amine, Trp-P-1, by triterpenoid from Uncaria sinensis in the Salmonella typhimurium TA1535/pSK1002 Umu test.
PubMed: DNA adduct formation of 14 heterocyclic aromatic amines in mouse tissue after oral administration and characterization of the DNA adduct formed by 2-amino-9H-pyrido[2,3-b]indole (AalphaC), analysed by 32P_HPLC.
PubMed: Antimutagenicity of Japanese traditional herbs, gennoshoko, yomogi, senburi and iwa-tobacco.
PubMed: Binding effect of polychlorinated compounds and environmental carcinogens on rice bran fiber.
PubMed: Biotransformation of nobiletin by Aspergillus niger and the antimutagenic activity of a metabolite, 4'-hydroxy-5,6,7,8,3'-pentamethoxyflavone.
PubMed: Antigenotoxic properties of Cassia tea (Cassia tora L.): mechanism of action and the influence of roasting process.
PubMed: Potent antioxidative and antigenotoxic activity in aqueous extract of Japanese rice bran--association with peroxidase activity.
PubMed: Inhibition of mutagenicity of food-derived heterocyclic amines by sulforaphane--a constituent of broccoli.
PubMed: Modulation of cytochrome P450 1A1 by food-derived heterocyclic aromatic amines.
PubMed: 3-Amino-1,4-dimethyl-5H-pyrido[4,3-b]indole induces apoptosis and necrosis with activation of different caspases in rat splenocytes.
PubMed: Occurrence of heterocyclic amines in several home-cooked meat dishes of the Spanish diet.
PubMed: Uptake of heterocyclic aromatic amine by insoluble dietary fiber in artificial gastric and intestinal juice.
PubMed: 3-Amino-1,4-dimethyl-5H-pyrido[4,3-b]indole (Trp-P-1) triggers apoptosis by DNA double-strand breaks caused by inhibition of topoisomerase I.
PubMed: Antimutagenic activity of flavonoids from Chrysanthemum morifolium.
PubMed: Prenylated flavanones isolated from flowers of Azadirachta indica (the neem tree) as antimutagenic constituents against heterocyclic amines.
PubMed: Antimutagenic activity of phenylpropanoids from clove (Syzygium aromaticum).
PubMed: Suppressive effect of the SOS-inducing activity of chemical mutagen by citric acid esters from Prunus mume Sieb. Et Zucc. using the Salmonella typhimurium TA1535/pSK1002 umu test.
PubMed: Inhibitory effect of dibenzoylmethane on mutagenicity of food-derived heterocyclic amine mutagens.
PubMed: Potential chemopreventive properties of anthocyanin-rich aqueous extracts from in vitro produced tissue of sweetpotato (Ipomoea batatas L.).
PubMed: Inhibitory effect of curcumin and its natural analogues on genotoxicity of heterocyclic amines from cooked food.
PubMed: Validity of mutagenic activity as an indicator of river water pollution.
PubMed: Antimutagenic activity of 8-hydroxyisoflavones and 6-hydroxydaidzein from soybean miso.
PubMed: Antimutagenicity of mono-, di-, and tricaffeoylquinic acid derivatives isolated from sweetpotato (Ipomoea batatas L.) leaf.
PubMed: Antimutagenic effect of various honeys and sugars against Trp-p-1.
PubMed: Apoptosis in the thymus after intraperitoneal injection of rats with Trp-P-1.
PubMed: Estimation of dietary HCA intakes in a large-scale population-based prospective study in Japan.
PubMed: Antimutagenicity of some edible Thai plants, and a bioactive carbazole alkaloid, mahanine, isolated from Micromelum minutum.
PubMed: 3-amino-1,4-dimethyl-5H-pyrido[4,3-b]indole (trp-P-1) is incorporated into rat splenocytes, thymocytes, and hepatocytes through monoamine transporters and induces apoptosis.
PubMed: Effects of soy sauce and sugar on the formation of heterocyclic amines in marinated foods.
PubMed: Evoking cytochrome P450 1A activity interferes with apoptosis induced by 3-amino-1,4-dimethyl-5H-pyrido [4,3-b]indole (Trp-P-1) in rat hepatocytes under the ex vivo system.
PubMed: Selective in vitro binding of dietary mutagens, individually or in combination, by lactic acid bacteria.
PubMed: [Behavior of Trp-P-1 and its metabolites in rat excreta].
PubMed: Antimutagenic activity against trp-P-1 of the edible Thai plant, Oroxylum indicum vent.
PubMed: Induction of cytochrome P450 1B1 in lung, liver and kidney of rats exposed to diesel exhaust.
PubMed: Binding activity of natto (a fermented food) and Bacillus natto isolates to mutagenic-carcinogenic heterocyclic amines.
PubMed: Norharman, an indoleamine-derived beta-carboline, but not Trp-P-2, a gamma-carboline, induces apoptotic cell death in human neuroblastoma SH-SY5Y cells.
PubMed: The heterocyclic amine, 3-amino-1,4-dimethyl-5H-pyrido[4,3-b]indole induces apoptosis in cocultures of rat parenchymal and nonparenchymal liver cells.
PubMed: Cell transformation in vitro by food-derived heterocyclic amines Trp-P-1, Trp-P-2 and N(2)-OH-PhIP.
PubMed: Antimutagenicity of extracts of Hericium erinaceus.
PubMed: Suppression of chemical mutagen-induced SOS response by alkylphenols from clove (Syzygium aromaticum) in the Salmonella typhimurium TA1535/pSK1002 umu test.
PubMed: The unique correlation between anti-mutagenicity of human saliva and change in body weight.
PubMed: Structural analysis of a novel antimutagenic compound, 4-Hydroxypanduratin A, and the antimutagenic activity of flavonoids in a Thai spice, fingerroot (Boesenbergia pandurata Schult.) against mutagenic heterocyclic amines.
PubMed: 3-Amino-1,4-dimethyl-5H-pyrido[4,3-b]indole (Trp-P-1) induces caspase-dependent apoptosis in mononuclear cells.
PubMed: DNA-damaging carcinogen 3-amino-1,4-dimethyl-5H-pyrido[4,3-b]indole (Trp-P-1) induces apoptosis via caspase-9 in primary cultured rat hepatocytes.
PubMed: Antimutagenic activity of isoflavone from Pueraria lobata.
PubMed: Identification of mutagenic heterocyclic amines (IQ, Trp-P-1 and AalphaC) in the water of the Danube river.
PubMed: 3-Amino-1,4-dimethyl-5H-pyrido[4,3-b]indole (Trp-P-1) induces apoptosis in rat splenocytes and thymocytes by different mechanisms.
PubMed: Synthesis and biological activity of alpha-methylene-gamma-lactones as new aroma chemicals.
PubMed: Differential response of cultured human umbilical vein and artery endothelial cells to Ah receptor agonist treatment: CYP-dependent activation of food and environmental mutagens.
PubMed: Detection of biomarkers for apoptosis in rat liver after perfusion with 3-amino-1,4-dimethyl-5H-pyrido[4,3-b]indole (Trp-P-1).
PubMed: Activation of genotoxins to DNA-damaging species in exfoliated breast milk cells.
PubMed: CYP1A-dependent activation of xenobiotics in endothelial linings of the chorioallantoic membrane (CAM) in birds.
PubMed: Antimutagens in gaiyou (Artemisia argyi levl. et vant.).
PubMed: Synergistic effects of food colors on the toxicity of 3-amino-1,4-dimethyl-5H-pyrido[4,3-b]indole (Trp-P-1) in primary cultured rat hepatocytes.
PubMed: Effect of Streptococcus thermophilus on the trp-P-1 level in the blood.
PubMed: Evaluation of the single cell gel electrophoresis assay with human hepatoma (Hep G2) cells.
PubMed: Cytotoxicity and keratinocyte microsome-mediated mutagenic activation of carcinogens in cultured epidermal cells.
PubMed: Antimutagenicity of the purple pigment, hordeumin, from uncooked barley bran-fermented broth.
PubMed: Antimutagenic activity of flavonoids from Pogostemon cablin.
PubMed: Antimutagenic activity of polymethoxyflavonoids from Citrus aurantium.
PubMed: Moscatilin from Dendrobium nobile, a naturally occurring bibenzyl compound with potential antimutagenic activity.
PubMed: Genotoxic effects of heterocyclic aromatic amines in human derived hepatoma (HepG2) cells.
PubMed: Antimutagenic activity of isoflavones from soybean seeds (Glycine max merrill).
PubMed: Inhibitory effects of beer and other alcoholic beverages on mutagenesis and DNA adduct formation induced by several carcinogens.
PubMed: Effect of cigarette smoke on the mutagenic activation of environmental carcinogens by rodent liver.
PubMed: Carcinogenicity of heterocyclic amines for the pancreatic duct epithelium in hamsters.
PubMed: Effects of roselle (Hibiscus sabdariffa Linn.), a Thai medicinal plant, on the mutagenicity of various known mutagens in Salmonella typhimurium and on formation of aberrant crypt foci induced by the colon carcinogens azoxymethane and 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine in F344 rats.
PubMed: Antimutagenicity of sweetpotato (Ipomoea batatas) roots.
PubMed: Heterocyclic amines in process flavours, process flavour ingredients, bouillon concentrates and a pan residue.
PubMed: The antimutagenic properties of a polysaccharide produced by Bifidobacterium longum and its cultured milk against some heterocyclic amines.
PubMed: Tryptophan pyrolysis products, Trp-P-1 and Trp-P-2 induce apoptosis in primary cultured rat hepatocytes.
PubMed: Scavenging effect of various tea extracts on superoxide derived from the metabolism of mutagens.
PubMed: Localization of cytochrome P4501A1 and covalent binding of a mutagenic heterocyclic amine in blood vessel endothelia of rodents.
PubMed: Suppression of the SOS-inducing activity of Trp-P-1 and aflatoxin B1 by meso-dihydroguaiaretic acid from Machilus thunbergii in the Salmonella typhimurium TA1535/pSK1002 umu test.
PubMed: Induction of ethoxyresorufin O-deethylase (EROD) and endothelial activation of the heterocyclic amine Trp-P-1 in bird embryo hearts.
PubMed: Effect of some cooked food mutagens on unscheduled DNA synthesis in cultured precision-cut rat, mouse and human liver slices.
PubMed: 3-Amino-1,4-dimethyl-5H-pyrido[4,3-b]indole (Trp-P-1) sensitizes mammalian cells to UV radiation by causing the S-phase arrest, not by inhibiting the repair of DNA damage as observed in Escherichia coli.
PubMed: Analysis of nonpolar heterocyclic amines in cooked foods and meat extracts using gas chromatography-mass spectrometry.
PubMed: Mutagenic activities of exhaust gas and ash from sludge incineration plants.
PubMed: Xenobiotic tolerance of primary cultured hepatocytes in rats fed a high-fat or high-protein diet.
PubMed: Potent suppressing activity of the non-polyphenolic fraction of green tea (Camellia sinensis) against genotoxin-induced umu C gene expression in Salmonella typhimurium (TA 1535/pSK 1002)--association with pheophytins a and b.
PubMed: Binding of heterocyclic amines by lactic acid bacteria from miso, a fermented Japanese food.
PubMed: Effects of lactic acid bacteria on binding and absorption of mutagenic heterocyclic amines.
PubMed: Prevention by antioxidants of heterocyclic amine-induced carcinogenesis in a rat medium-term liver bioassay: results of extended and combination treatment experiments.
PubMed: In vivo genotoxicity of heterocyclic amines detected by a modified alkaline single cell gel electrophoresis assay in a multiple organ study in the mouse.
PubMed: Suppression of the SOS-Inducing Activity of Trp-P-1 and Aflatoxin B1 by Meso-dihydroguaiaretic Acid from Machilus thunbergii in the Salmonella typhimurium TA1535/pSK1002 umu Test.
PubMed: Interaction of mutagenic tryptophan pyrolysate with d(CGATCG)2: intercalation model based on NMR experiments.
PubMed: Quantification of mutagenic/carcinogenic heterocyclic amines, MeIQx, Trp-P-1, Trp-P-2 and PhIP, contributing highly to genotoxicity of river water.
PubMed: Food-derived heterocyclic amines potentiate the mutagenicity of a drinking water mutagen 3-chloro-4-(dichloromethyl)-5-hydroxy-2(5H)-furanone (MX).
PubMed: Inhibition of the genotoxic effects of heterocyclic amines in human derived hepatoma cells by dietary bioantimutagens.
PubMed: Antimutagenic effect of resveratrol against Trp-P-1.
PubMed: Mutagenic heterocyclic aromatic amines (HAAs) in 'processed food flavour' samples.
PubMed: Analysis of synergism in hepatocarcinogenesis based on preneoplastic foci induction by 10 heterocyclic amines in the rat.
PubMed: Antimutagenic effect of methanolic extracts from peanut hulls.
PubMed: Suppressive effects of chlorophyllin on mutagen-induced umu C gene expression in Salmonella typhimurium (TA 1535/pSK 1002) and tumor promoter-dependent ornithine decarboxylase induction in BALB/c 3T3 fibroblast cells.
PubMed: Desmutagenicity of soybean after heating.
PubMed: Suppressive effects of retinoids, carotenoids and antioxidant vitamins on heterocyclic amine-induced umu C gene expression in Salmonella typhimurium (TA 1535/pSK 1002).
PubMed: 3-Amino-1,4-dimethyl-5H-pyrido[4,3-b]indole (Trp-P-1) inhibits the binding activity of T4 endonuclease V to UV-damaged DNA.
PubMed: Determination of heterocyclic amines by pneumatically assisted electrospray liquid chromatography-mass spectrometry.
PubMed: Antimutagenic activity of caffeic acid and related compounds.
PubMed: Effects of beta- and gamma-carboline derivatives of DNA topoisomerase activities.
PubMed: Relationship between antimutagenic activity and major components of various teas.
PubMed: Binding specificity of mutagenic tryptophan pyrolysates for DNA conformation: spectroscopic and viscometric studies.
PubMed: 2,3,7,8-Tetrachlorodibenzo-p-dioxin sensitization of cultured human epidermal cells to carcinogenic heterocyclic amine toxicity.
PubMed: The effects of a soluble-fibre polysaccharide on the adsorption of carcinogens to insoluble dietary fibres.
PubMed: Development of high sensitive umu test system: rapid detection of genotoxicity of promutagenic aromatic amines by Salmonella typhimurium strain NM2009 possessing high O-acetyltransferase activity.
PubMed: Enhancement of rat liver cell foci development by combined treatment with heterocyclic amines at low doses.
PubMed: Identification of new mutagenic heterocyclic amines and quantification of known heterocyclic amines.
PubMed: Quantitative determination of heterocyclic amines in food products.
PubMed: Effect of cigarette smoke on the mutagenic activation of various carcinogens in hamster.
PubMed: Suppressive effects of the extracts of Japanese edible seaweeds on mutagen-induced umu C gene expression in Salmonella typhimurium (TA 1535/pSK 1002) and tumor promotor-dependent ornithine decarboxylase induction in BALB/c 3T3 fibroblast cells.
PubMed: Antimutagenicity of lemon grass (Cymbopogon citratus Stapf) to various known mutagens in salmonella mutation assay.
PubMed: Metabolism-dependent binding of the heterocyclic amine Trp-P-1 in endothelial cells of choroid plexus and in large cerebral veins of cytochrome P450-induced mice.
PubMed: Influence of chemicals commonly found in a water environment on the Salmonella mutagenicity test.
PubMed: Effect of cooking time and temperature on the heterocyclic amine content of fried beef patties.
PubMed: Inhibitory activity of cigarette-smoke condensate on the mutagenicity of heterocyclic amines.
PubMed: Metabolic activation of the food mutagen 3-amino-1,4-dimethyl-5H-pyrido-[4,3-b]indole (Trp-P-1) in endothelial cells of cytochrome P-450-induced mice.
PubMed: Synergistic enhancement of hepatic foci development by combined treatment of rats with 10 heterocyclic amines at low doses.
PubMed: Metabolic activation of the food mutagen Trp-P-1 in endothelial cells of heart and kidney in cytochrome P450-induced mice.
PubMed: Hepatic Phosphoglucomutase Activity as a Marker of Oxidative Stress Induced by Pro-oxidative Drugs.
PubMed: Desmutagenicity of Melanoidins against Various Kinds of Mutagens and Activated Mutagens.
PubMed: Food-derived heterocyclic amines, 3-amino-1,4-dimethyl-5H-pyrido[4,3-b]indole and related amines, as inhibitors of monoamine metabolism.
PubMed: Identification of heterogenous antimutagenic activities in the extract of edible brown seaweeds, Laminaria japonica (Makonbu) and Undaria pinnatifida (Wakame) by the umu gene expression system in Salmonella typhimurium (TA1535/pSK1002).
PubMed: Microorganisms in the gastrointestinal tract of the rat prevent absorption of the mutagen-carcinogen 3-amino-1,4-dimethyl-5H-pyrido(4,3-b)indole.
PubMed: Anticlastogenic and bio-antimutagenic activity of cultured broth of Saccharomyces cerevisiae 28 on mutagens.
PubMed: 3-Amino-1,4-dimethyl-5H-pyrido[4,3-b]indole (Trp-P-1) inhibits the removal of both cyclobutane dimers and (6-4) photoproducts from the DNA of ultraviolet-irradiated E. coli.
PubMed: Suppressing effects of S phase post-treatment with carbolines on sister-chromatid exchanges induced by mitomycin C in Chinese hamster cells.
PubMed: Interaction of mutagenic tryptophan pyrolysate with DNA. CD spectral study on the binding specificity.
PubMed: Analysis of mutational specificity induced by heterocyclic amines in the lacZ gene of Escherichia coli.
PubMed: Binding of polycyclic planar mutagens to chlorophyllin resulting in inhibition of the mutagenic activity.
PubMed: The effect of a heterocyclic amine, 3-amino-1,4-dimethyl-5H-pyrido[4,3-b]indole (Trp-P-1), on tyrosine hydroxylase mRNA in PC12h cells.
PubMed: Antimutagenicity of cell fractions of microorganisms on potent mutagenic pyrolysates.
PubMed: Enhancing Effect of Ascorbic Acid on the Mutagenicity of Trp-P-1 by Indigocarmine in the Salmonella Microsome.
PubMed: [Antimutagenic substances in the Armeniacae semen and Persicae semen].
PubMed: Enhancing effects of heterocyclic amines and beta-carbolines on the induction of chromosome aberrations in cultured mammalian cells.
PubMed: Enhancing effect of heterocyclic amines and beta-carbolines on UV or chemically induced mutagenesis in E. coli.
PubMed: Binding of mutagenic pyrolyzates to fractions of intestinal bacterial cells.
PubMed: Determination of human exposure to the dietary carcinogen 3-amino-1, 4-dimethyl-5H-pyrido[4,3-b]indole (Trp-P-1) from hemoglobin adduct: the relationship to DNA adducts.
PubMed: Optimization of the sensitivity of high-performance liquid chromatography in the detection of heterocyclic aromatic amine mutagens.
PubMed: Mutagenic activity of a series of synthetic and naturally occurring heterocyclic amines in Salmonella.
PubMed: Antimutagenic effect of Maillard browning products obtained from amino acids and sugars.
PubMed: Modulating effect of tanshinones on mutagenic activity of Trp-P-1 and benzo[a]pyrene in Salmonella typhimurium.
PubMed: Effects of pH on the in Vitro Sorption of Mutagens to Dietary Fibers.
PubMed: Elevation of levels of carcinogenic tryptophan pyrolysis products in plasma and red blood cells of patients with uremia.
PubMed: Mutagenicity of some heterocyclic amines in Salmonella typhimurium with metabolic activation by human red blood cell cytosol.
PubMed: Chromosome aberrations, micronuclei and sister-chromatid exchanges (SCEs) in rat liver induced in vivo by hepatocarcinogens including heterocyclic amines.
PubMed: Mutagenicity of various chemicals including nickel and cobalt compounds in cultured mouse FM3A cells.
PubMed: Presence of carcinogenic heterocyclic amines in urine of healthy volunteers eating normal diet, but not of inpatients receiving parenteral alimentation.
PubMed: Enhancement of GST-P positive liver cell foci development by combined treatment of rats with five heterocyclic amines at low doses.
PubMed: Binding of mutagens by fractions of the cell wall skeleton of lactic acid bacteria on mutagens.
PubMed: Reduction of enzymatic activity of tyrosine hydroxylase by a heterocyclic amine, 3-amino-1,4-dimethyl-5H-pyrido(4,3-b)indole (Trp-P-1), was due to reduced affinity to a cofactor biopterin.
PubMed: In vitro binding of mutagenic pyrolyzates to lactic acid bacterial cells in human gastric juice.
PubMed: Carcinogenic tryptophan pyrolysis products in the environment.
PubMed: Inhibition of tryptophan hydroxylase by food-derived carcinogenic heterocyclic amines, 3-amino-1-methyl-5H-pyrido[4,3-b]indole and 3-amino-1,4-dimethyl-5H-pyrido[4,3-b]indole.
PubMed: Loss of heterocyclic amine mutagens by insoluble hemicellulose fiber and high-molecular-weight soluble polyphenolics of coffee.
PubMed: The formation of heart DNA adducts in F344 rat following dietary administration of heterocyclic amines.
PubMed: Antimutagenicity and binding of lactic acid bacteria from a Chinese cheese to mutagenic pyrolyzates.
PubMed: Simple methods for quantifying mutagenic heterocyclic aromatic amines in food products.
PubMed: Inhibition of human brain aromatic L-amino acid decarboxylase by cooked food-derived 3-amino-1-methyl-5H-pyrido[4,3-b]indole (Trp-P-2) and other heterocyclic amines.
PubMed: Enhancement of the mutagenicity of Trp-P-1, Trp-P-2 and benzo[a]pyrene by bupleuri radix extract.
PubMed: Effects of dietary and intraperitoneally administered beta-naphthoflavone on mutagenicity and tissue distribution of Trp-P-1 in the rat.
PubMed: Genotoxicity of heterocyclic amines in the hepatocyte/DNA repair assay using hepatocytes of rats or mice pretreated with 3-methylcholanthrene.
PubMed: Inhibitory effects of carcinogenic tryptophan pyrolysis products on phytohemagglutinin-induced blast transformation of human lymphocytes.
PubMed: 3-amino-1-methyl-5H-pyrido[4,3-b]indole (Trp-P-2) and other heterocyclic amines as inhibitors of mitochondrial monoamine oxidases separated from human brain synaptosomes.
PubMed: Carcinogenic tryptophan pyrolysis products in cigarette smoke condensate and cigarette smoke-polluted indoor air.
PubMed: Identification of carcinogenic tryptophan pyrolysis products in human bile by high-performance liquid chromatography.
PubMed: Hyperketonaemia markedly modulates the metabolic activation of chemical carcinogens.
PubMed: Prostaglandin hydroperoxidase-dependent activation of heterocyclic aromatic amines.
PubMed: Improvement of carcinogen identification in BALB/3T3 cell transformation by application of a 2-stage method.
PubMed: Carcinogenic tryptophan pyrolysis products in airborne particles and rain water.
PubMed: Hepatocarcinogenic heterocyclic aromatic amines that induce cytochrome P-448 isozymes, mainly cytochrome P-448H (P-450IA2), responsible for mutagenic activation of the carcinogens in rat liver.
PubMed: Uptake of heterocyclic amines, Trp-P-1 and Trp-P-2, into clonal rat pheochromocytoma PC12h cells by dopamine uptake system.
PubMed: Carcinogenic tryptophan pyrolysis products in human lens.
PubMed: Human cDNA-expressed cytochrome P450 IA2: mutagen activation and substrate specificity.
PubMed: Exposure level monitor of 3-amino-1,4-dimethyl-5H-pyrido[4,3-b]indole, a dietary carcinogen, in rabbits.
PubMed: Reduction of enzyme activity of tyrosine hydroxylase and aromatic L-aminoacid decarboxylase in clonal pheochromocytoma PC12h cells by carcinogenic heterocyclic amines.
PubMed: In vitro reaction of hydroxyamino derivatives of MeIQx, Glu-P-1 and Trp-P-1 with DNA: 32P-postlabelling analysis of DNA adducts formed in vivo by the parent amines and in vitro by their hydroxyamino derivatives.
PubMed: Analysis of human plasma as an exposure level monitor for carcinogenic tryptophan pyrolysis products.
PubMed: Effects of heterocyclic amines in food on dopamine metabolism in nigro-striatal dopaminergic neurons.
PubMed: Hepatic cytochrome P-450 isozyme(s) induced by dietary carcinogenic aromatic amines preferentially in female mice of DBA/2 and other strains.
PubMed: Adsorption of mutagens by refined corn bran.
PubMed: Species and sex differences in genotoxicity of heterocyclic amine pyrolysis and cooking products in the hepatocyte primary culture/DNA repair test using rat, mouse, and hamster hepatocytes.
PubMed: Heterocyclic amine-DNA adducts analyzed by 32P-postlabeling method.
PubMed: Streptozotocin-induced diabetes modulates the metabolic activation of chemical carcinogens.
PubMed: Species, sex and organ differences in induction of a cytochrome P-450 isozyme responsible for carcinogen activation: effects of dietary hepatocarcinogenic tryptophan pyrolysate components in mice and rats.
PubMed: Inhibition of mutagenicity by glycyrrhiza extract and glycyrrhizin.
PubMed: SOS-inducing activity of chemical carcinogens and mutagens in Salmonella typhimurium TA1535/pSK1002: examination with 151 chemicals.
PubMed: Tumor induction in mice administered neonatally with 3-amino-1,4-dimethyl-5H-pyrido[4,3-b]indole or 3-amino-1-methyl-5H-pyrido[4,3-b]indole.
PubMed: Inhibitory effects of tryptophan pyrolysis products on human platelet aggregation through inhibition of prostaglandin endoperoxide synthetase.
PubMed: Carcinogenic effect of the simultaneous administration of five heterocyclic amines to F344 rats.
PubMed: Initiating activity in a two-stage mouse skin model of nine mutagenic pyrolysates of amino acids, soybean globulin and proteinaceous food.
PubMed: Mutagenicity modulating effect of quercetin on aromatic amines and acetamides.
PubMed: Counteraction of the genotoxicity of some cooked-food mutagens by biogenic amines.
PubMed: Detection of Trp-P-1 and Trp-P-2, carcinogenic tryptophan pyrolysis products, in dialysis fluid of patients with uremia.
PubMed: Thermospray liquid chromatographic-mass spectrometric analysis of mutagenic substances present in tryptophan pyrolysates.
PubMed: Desmutagenic effect of alpha-dicarbonyl and alpha-hydroxycarbonyl compounds against mutagenic heterocyclic amines.
PubMed: Activation of mutagenic and carcinogenic heterocyclic amines by S-9 from the liver of a rhesus monkey.
PubMed: Effects of plant-derived flavonoids and polyphenolic acids on the activity of mutagens from cooked food.
PubMed: Mutagen formation in a model beef supernatant fraction. IV. Properties of the system.
PubMed: Carcinogenicity in mice and rats of heterocyclic amines in cooked foods.
PubMed: Mutagenic activities of heterocyclic amines in Chinese hamster lung cells in culture.
PubMed: Metabolism of the dietary carcinogen TRP-P-1 in rats.
PubMed: In vitro binding of potent mutagenic pyrolysates to intestinal bacteria.
PubMed: Induction of unscheduled DNA synthesis in rat and hamster hepatocytes by cooked food mutagens.
PubMed: Role of the uvr gene in the SOS function inducing activity of two tryptophan pyrolysis products, Trp-P-1 and Trp-P-2, in Escherichia coli K12.
PubMed: Metabolic activation of mutagenic heterocyclic aromatic amines from protein pyrolysates.
PubMed: Use of nitrite and hypochlorite treatments in determination of the contributions of IQ-type and non-IQ-type heterocyclic amines to the mutagenicities in crude pyrolyzed materials.
PubMed: Mutagenicity of smoked, dried bonito products.
PubMed: Genotoxicity of heterocyclic amines in the Salmonella/hepatocyte system.
PubMed: Carcinogenicity in rats of a mutagenic compound, 3-amino-1,4-dimethyl-5H-pyrido[4,3-b]indole, from tryptophan pyrolysate.
PubMed: Early cellular effects of Trp-P-1 on adult rat hepatocytes in primary culture.
PubMed: Enhancement of hepatocellular genotoxicity of several mutagens from amino acid pyrolysates and broiled foods following ethanol pretreatment.
PubMed: Mutagenic potency of heterocyclic amines in the Drosophila wing spot test and its correlation to carcinogenic potency.
PubMed: Effect of liver S9 from 3,4,5,3',4'-pentachlorobiphenyl-pretreated rats on the mutagenic activity of the various carcinogens toward Salmonella typhimurium TA 98.
PubMed: Hypersensitivity of xeroderma pigmentosum cells to dietary carcinogens.
PubMed: Mutagenic nitropyrenes in foods.
PubMed: Sex-dependent induction of hepatic enzymes for mutagenic activation of a tryptophan pyrolysate component, 3-amino-1,4-dimethyl-5H-pyrido[4,3-b]-indole, by feeding in mice.
PubMed: A desmutagenic factor isolated from burdock (Arctium lappa Linne).
PubMed: Mutagenic activation of 3-amino-1,4-dimethyl-5H-pyrido(4,3-b)indole(Trp-P-1) and 3-amino-1-methyl-5H-pyrido(4,3-b)indole (Trp-P-2) by primary cultures of adult rat hepatocytes: effect of Aroclor induction in vitro.
PubMed: Damaging effect of dietary components to colon epithelial cells in vivo: effect of mutagenic heterocyclic amines.
PubMed: Inhibition of benzodiazepine and GABA receptor binding by amino-gamma-carbolines and other amino acid pyrolysate mutagens.
PubMed: Effect of glutathione and uridine-5'-diphosphoglucuronic acid on the mutagenicity of tryptophan pyrolysis products (Trp-P-1 and Trp-P-2) by rat-liver and -intestine S9 fraction.
PubMed: Defective repair of tryptophan pyrolysate (Trp P-1 and Trp P-2) and aflatoxin B1 damage in xeroderma pigmentosum cells.
PubMed: Comparative induction of somatic eye-color mutations and sex-linked recessive lethals in Drosophila melanogaster by tryptophan pyrolysates.
PubMed: Formation of mutagens by amino-carbonyl reactions.
PubMed: Distribution of the carcinogenic tryptophan pyrolysis product Trp-P-1 in control, 9-hydroxyellipticine and beta-naphthoflavone pretreated mice.
PubMed: Aroclor 1254 pretreatment enhances the DNA repair response to amino acid pyrolysate mutagens in primary cultures of rat hepatocytes.
PubMed: Ultimate forms of mutagenic and carcinogenic heterocyclic amines produced by pyrolysis.
PubMed: Trp-P-1(3-amino-1,4-dimethyl-5H-pyrido[4,3-b]indole) and its acetate.
PubMed: Mutagenic activity of heterocyclic amines in Chinese hamster lung cells with diphtheria toxin resistance as a marker.
PubMed: Mutagenesis of amino acid pyrolysis products in Chinese hamster V79 cells.
PubMed: Induction of sister-chromatid exchanges in human lymphocytes by indirect carcinogens with and without metabolic activation.
PubMed: N-hydroxylation of carcinogenic and mutagenic aromatic amines.
PubMed: Actions of amino-beta-carbolines on induction of sister-chromatid exchanges.
PubMed: Ultrastructural and biochemical alterations induced by tryptophan pyrolysis products on rat hepatocytes in primary culture. I. Action on the transcriptional process.
PubMed: Induction of bladder cancer in mice by implanting pellets containing tryptophan pyrolysis products.
PubMed: Inhibition of protein pyrolysate mutagenicity by retinol (vitamin A).
PubMed: A solvent effect on the mutagenicity of tryptophan-pyrolysate mutagens in the Salmonella/mammalian microsome assay.
PubMed: Antimutagenic action of cobaltous chloride on Trp-P-1-induced mutations in Salmonella typhimurium TA98 and TA1538.
PubMed: Activation of Trp-P-1 and Trp-P-2 in vitro and in vivo.
PubMed: Human saliva inactivates mutagenicity of carcinogens.
PubMed: Induction of gamma-glutamyl transpeptidase positive foci in rat liver by pyrolysis products of amino acids.
PubMed: Inhibitory effect of the ether extract of human feces on activities of mutagens: inhibition by oleic and linoleic acids.
PubMed: Detection of chemical carcinogens by assay of unscheduled DNA synthesis in rat tracheal epithelium in short-term organ culture.
PubMed: Inactivation of mutagens from pyrolysates of tryptophan and glutamic acid by nitrite in acidic solution.
PubMed: Metabolic activation of mutagenic tryptophan pyrolysis products by rat liver microsomes.
PubMed: Metabolic activation of mutagenic tryptophan pyrolysis products (Trp-P-1 and Trp-P-2) by a purified cytochrome P-450-dependent monooxygenase system.
PubMed: Detection of potent mutagens, Trp-P-1 and Trp-P-2, in broiled fish.
PubMed: Induction of sister-chromatid exchanges by mutagens from amino acid and protein pyrolysates.
PubMed: The enhancing effect of cysteine and its derivatives on the mutagenic activities of the tryptophan-pyrolysis products, Trp-P-1 and Trp-P-2.
PubMed: Oxidation of tryptophan-P-1 and P-2 by beef liver catalase-H2O2 intermediate: comparison with horseradish peroxidase.
PubMed: Induction of enzyme-altered islands in rat liver by tryptophan pyrolysis products.
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