Voprosy meditsinskoi khimii (ISSN 0042-8809)

Hydrazine derivative modification of the activity of brain mitochondrial monoamine oxidases

   
Kalninia I.E., Baumanas E.A., Kaĭrane C.B., Gorkin V.Z.
PubMed Id: 7336653
Year: 1981 vol: 27  issue:6  pages: 773-779
Abstract: Treatment of bovine brain stem mitochondria with hydrazine derivatives, which inhibited the monoamine oxidase activity (substrate: 5-hydroxytryptamine), was accompanied by appearance of the properties to deaminate histamine and cadaverine at a high rate. The same phenomenon was observed in vivo after treatment of mice with the hydrazine derivatives. The dramatic increase in histamine deaminating activity in brain was accompanied by a decrease in the tissue concentration of histamine. The hydrazine derivatives are considered as prooxidants stimulating via a free-radical mechanism lipid peroxidation in methyloleate solutions and in biomembranes (ref. 5) and causing qualitative alteration (transformation) in catalytic properties of monoamine oxidases of the tyre A, which acquire the histamine deaminating activity. A certain correlation was noted between the prooxidant effect of the hydrazine derivatives and the modification of catalytic properties of the membrane bound monoamine oxidases of brain mitochondria in vitro and in vivo.
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Reference: Kalninia I.E., Baumanas E.A., Kaĭrane C.B., Gorkin V.Z., Hydrazine derivative modification of the activity of brain mitochondrial monoamine oxidases, Voprosy meditsinskoi khimii, 1981, vol: 27(6), 773-779.
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