Results 91 to 100 of about 911 (180)

Effects of harman and norharman on the mutagenicity and binding to DNA of benzo[a]pyrene metabolites in vitro and on aryl hydrocarbon hydroxylase induction in cell culture

, 1977
Harman and norharman, two β-carboline derivatives known to exist in certain foods and to be formed during pyrolysis of tobacco and meat, were tested for mutagenic activity in the presence of benzo[a]pyrene, mouse liver enzymes, and Salmonella typhimurium
Pelkonen, Olavi, Nebert, Daniel W, Legraverend, Catherine, Levitt, Roy C   +3 more
core   +1 more source

MOESM2 of Harman and norharman, metabolites of the entomopathogenic fungus Conidiobolus coronatus (Entomophthorales), affect the serotonin levels and phagocytic activity of hemocytes, insect immunocompetent cells, in Galleria mellonella (Lepidoptera)

, 2019
Additional file 2: Table S2. Phagocytic activity of G. mellonella hemocytes after application of norharman and harman—raw data. The data are expressed as the percentage of phagocytosis compared with control values (100%).
Anna Wrońska (6505937), Mieczysława Boguś (6505940)   +1 more
core   +1 more source

MOESM1 of Harman and norharman, metabolites of the entomopathogenic fungus Conidiobolus coronatus (Entomophthorales), affect the serotonin levels and phagocytic activity of hemocytes, insect immunocompetent cells, in Galleria mellonella (Lepidoptera)

, 2019
Additional file 1: Table S1. Serotonin concentration [ng/ml] in hemolymph collected from G. mellonella larvae after application of norharman and harman-raw data.
Anna Wrońska (6505937), Mieczysława Boguś (6505940)   +1 more
core   +1 more source

The total ion current (TIC) of harman and norharman extracted from MM (pink) and LB (black) post-incubation media.

, 2018
The total ion current (TIC) of harman and norharman extracted from MM (pink) and LB (black) post-incubation media.
Anna Katarzyna Wrońska (4922722), Agata Kaczmarek (4922719), Mieczysława Irena Boguś (4922725), Michalina Kazek (4922728)   +3 more
core   +1 more source

Norharman, a normal body constituent [PDF]

The Lancet, 1992
D, Fekkes, M J, Schouten, L, Pepplinkhuizen, J, Bruinvels, W, Lauwers, U A, Brinkman   +5 more
openaire   +2 more sources

CLXXXV.—Harmine and harmaline. Part V. The synthesis of norharman

J. Chem. Soc., Trans., 1921
n ...
Kermack, William Ogilvy, Perkin, William Henry, Robinson, Robert   +2 more
openaire   +2 more sources

Contribution of Harman and Norharman to the Reinforcing Efficacy of Aqueous Tobacco Smoke Extract Self-Administered by Rats

, 2012
Background: Animal models of drug abuse treat nicotine as the primary reinforcing agent that promotes tobacco addiction. However, rodents demonstrate poor self-administration of nicotine despite evidence of tobacco's high abuse potential in humans.
Crowther, Alex John (11688232), Crowther, Alex John   +1 more
core   +1 more source

Oxidative metabolism of the bioactive and naturally occurring β-carboline alkaloids, norharman and harman, by human cytochrome P450 enzymes

, 2013
Norharman and harman are naturally occurring β-carboline alkaloids exhibiting a wide range of biological, psychopharmacological, and toxicological actions. They occur in foods and tobacco smoke and also appear endogenously in humans.
Herraiz, Tomás, Guillén, Hugo, Arán, Vicente J.   +2 more
core   +1 more source

Inhibition of monoamine oxidase by the tryptophan derivatives harman and norharman which are present in tobacco smoke: A possible explanation for the lower incidence of Parkinson´s disease in smokers

, 2008
Titeldatei Einleitung Materialien und Methoden Ergebnisse Diskussion Fazit, Zusammenfassung und Methodikanhang LiteraturverzeichnisEpidemiologische Studien zeigen, dass Tabakraucher eine verminderte Inzidenz der Parkinson´schen Krankheit ...
Meier-Henco, Mignon Lesly
core   +1 more source

Dietary fibres from Brassica vegetables bind heterocyclic amines in vitro (abstract only)

Czech Journal of Food Sciences, 2004
An association between the intake of heterocyclic amines (HAs) and development of cancer have been observed in epidemiological studies, while in other studies no such correlation has been found.
K. Skog, R. Maul, M. Nyman
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