The role of endozepine in the regulation of steroid synthesis.

Abstract:

:Endozepine has recently been isolated from various steroid-forming organs. The following article explores the role of endozepine in the regulation of steroid synthesis. Steroid hormone synthesis from cholesterol begins in the inner mitochondrial membrane, where cytochrome P450 converts cholesterol to pregnenolone. Scientists thought that ACTH would stimulate this conversion, but experiments showed no such stimulation. However, addition of aminoglutethimide to block side-chain cleavage caused the expected reaction of ACTH to take place. Next the role of protein synthesis on the actions of ACTH was explored. Then endozepine was isolated from bovine fasciculata based on stimulation of pregnenolone production by freshly prepared mitochondria. After further experimentation it was concluded that endozepine is a peptide with at least two groups of actions: It binds GABAA receptors in the central nervous system, and it increases the mitochondrial synthesis of pregnenolone.

journal_name

Mol Neurobiol

journal_title

Molecular neurobiology

authors

Hall PF

doi

10.1007/BF02740835

subject

Has Abstract

pub_date

1995-02-01 00:00:00

pages

1-17

issue

1

eissn

0893-7648

issn

1559-1182

journal_volume

10

pub_type

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