Search PubMed⌕ Search

SEARCH · Search PubMed

Results for “HISTAMINASE”

Search indexed PubMed citations on genomics, clinical trials, systematic reviews and public health. Explore titles, authors and supplied subject terms, then open the PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 145 records · Page 8Linked to original sources
PubMed1978

Postheparin-diamine oxidase (histaminase) in anaphylaxis.

The level of plasma postheparin-diamine oxidase was determined in two patients three days after an anaphylactic shock and was controlled four weeks, and also six months later. A decrease of the enzyme levels to about 10% of a control group was found and a slow enzyme increase to about 40% observed six months later. It seems probable that in anaphylaxis a depletion of the enzyme in liver and small intestine occurs as could be shown in animals after heparin load.

Adolescent↗
PubMed1988

Induction and quail liver diamine oxidase (histaminase). Part I: Interference of spermidine synthase on the diamine oxidase activity assay using putrescine as substrate.

Treatment with Aroclor 1254 produces a decrease of diamine oxidase (DAO) activity in quail liver microsomes evaluated on deamination of 14C-putrescine and of histamine. The inhibition observed with the 14C-putrescine assay has peculiar behavior; it increase with the increase of 14C-putrescine concentrations until it produces values of extracted radioactivity which are less than the blanks which do not contain proteins. This effect is reserved by dicyclohexylammonium, an inhibitor of spermidine synthase (SPDS). This paper shows that SPDS rapidly decreases the putrescine concentration during the assay of DAO in tissues, particularly when SPDS is increased by induction with Arocolor.

Amine Oxidase (Copper-Containing)↗
PubMed1988

Induction and quail liver diamine oxidase (histaminase). Part II: Different responses to the inducers.

In quail liver microsomes the metabolism of histamine is prevalently sustained by diaminoxidase (DAO). Treatment with phenobarbital (PB) and clofibrate (CF) does not modify DAO activity, while that with Aroclor 1254 (PCB) and beta-naphtoflavone (BNF) significantly decreases it. The decrease of DAO activity produced by these substances is not dependent on their direct inhibition of the enzyme. DAO decrease might represent a further possibility to discriminate among different inducers; moreover, it implies that histamine metabolism might be decreased, in quail liver, by some classes of inducers.

Amine Oxidase (Copper-Containing)↗