Activity of purine catabolism enzymes during the reproductive cycle of male and female brown trout (Salmo trutta)

• Type: Article in International Scientific Journal
• Date: 2005

Authors

resende, ad (Author) Other; rocha, e (Author) ICBAS; lobo-da-cunha, a (Author) ICBAS

Journal

The Journal is awaiting validation by the Administrative Services.

Title: CONTEMPORARY CHALLENGES IN AUTOIMMUNITY

Vol. 11

Pages: 444-447

Indexing

ISI Web of Knowledge - 5 Citations

Scopus - 6 Citations

Scientific classification

FOS: Natural sciences > Biological sciences

Other information

Authenticus ID: P-000-6VK

DOI: 10.1196/annals.1327.085

Abstract (EN): In order to detect predicted changes in purine catabolism during the annual reproductive cycle of brown trout, we measured the activity of xanthine dehydrogenase, urate oxidase, and allantoinase. In kidney, only xanthine dehydrogenase was detected. In female liver and kidney, the activity of these enzymes was higher in May and decreased during vitellogenesis, with urate oxidase being undetectable in this period. In male liver, a similar variation pattern was found; however, in kidney, high activities were found in both May and December. These results suggest an influence of sex hormones in trout purine catabolism, especially in females.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 4