Corticosterone metabolism and the incorporation of leucine, uridine, and thymidine into fetal mouse brain.

Abstract:

:The change in the pattern of biotransformation of [14C]corticosterone in fetal mouse brain between gestational day 14 and 17 increased the proportion of unchanged hormone from 9-75%. A sharp decrease in the in vitro incorporation of [14C]leucine, [3H]uridine, and [3H]thymidine into incubated brain coincided with this change and continued until day 19, when the incorporation of the 3 substrates had fallen to 9, 54, and 16%, respectively, of that on day 14. Injection of dexamethasone reduced values on day 14 to those normally found on days 15-18. Enzymes which metabolize corticosteroids regulate their activity in specific tissues; these data suggest a hormonal influence on developing brain.

journal_name

Pediatr Res

journal_title

Pediatric research

authors

Tye LM,Michaud NJ,Burton AF

doi

10.1203/00006450-197812000-00011

subject

Has Abstract

pub_date

1978-12-01 00:00:00

pages

1152-4

issue

12

eissn

0031-3998

issn

1530-0447

journal_volume

12

pub_type

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