Results 161 to 170 of about 792 (188)

Co-mutagenic effect of norharman with N-nitrosamine derivatives

Mutation Research, 1981
The mutagenicities of 14 nitrosamine compounds were tested on Salmonella typhimurium TA98 and TA100 in the presence of the co-mutagen norharman. N-Nitrosophenyl compounds, such as N,N-diphenylnitrosamine, N-methyl-N-phenylnitrosamine, N-ethyl-N-phenylnitrosamine and N-phenyl-N-benzylnitrosamine, were mutagenic when norharman was added to the incubation
K, Wakabayashi, M, Nagao, T, Kawachi, T, Sugimura   +3 more
openaire   +2 more sources

Plasma harman and norharman in Parkinson's disease.

Journal of neural transmission. Supplementum, 1996
Several lines of evidence suggest that endogenous and exogenous toxins may play a major role in the pathogenesis of Parkinson's disease (PD). In the brain aromatic beta-carbolines, like harman or norharman, may be formed by cyclization of indoleamines. Because of the structural similarity to MPTP, beta-carbolines have been proposed as endogenous toxins.
W, Kuhn, T, Müller, H, Grosse, H, Rommelspacher   +3 more
openaire   +1 more source

SCE induction in human lymphocytes by combined treatment with aniline and norharman

Mutation Research/Genetic Toxicology, 1982
In human lymphocytes, aniline was unable to induce an increase of SCEs in vitro with or without metabolic activation by S9 mix. p-Aminophenol, one of the C-hydroxylation metabolites of aniline in the body, however, increased the SCE frequencies of lymphocytes at a concentration of 10-4 M.
S, Takehisa, N, Kanaya
openaire   +2 more sources

Neuroactive β-Carbolines Norharman and Harman in Coffee

2015
Coffee is among the highest sources of norharman and harman in the human diet. Their presence in coffee has increased the conflictive and inconclusive list of compounds with possible biological activity in this popular beverage. Because regular coffee consumption has been epidemiologically associated with a reduced risk for Parkinson disease and ...
openaire   +1 more source

Norharmane

2007
S.J. Enna, David B. Bylund
openaire   +1 more source

Norharman - is it an Exclusively Endogenous Modulator of Behavior?

Pharmacopsychiatry, 1999
openaire   +2 more sources

Effect of acrolein on the formation of harman and norharman in chemical models and roast beef patties

Food Research International, 2023
Jianbo Xiao, Yueliang Zhao
exaly  

β-carbolines norharman and harman in vegetable oils in China

Food Additives and Contaminants: Part B Surveillance, 2020
Chen-Xia Zhang, Jun Xi, Yu-Xiang Ma
exaly  

Quantification of the co-mutagenic β-carbolines, norharman and harman, in cigarette smoke condensates and cooked foods

Cancer Letters, 1999
Yukari Totsuka, Rashmi Sinha, S Gotō
exaly  

Detection of harman and norharman in human urine

Mutation Research/Environmental Mutagenesis and Related Subjects, 1991
H. Ushiyama, K. Wakabayashi, T. Sugimura, M. Nagao   +3 more
openaire   +1 more source