Increase in cathepsin D activity in rat brain in aging.

Abstract:

:Cathepsin D-like activity in homogenates of five brain areas of 3-month-old and 24-month-old Fischer 344 rats was measured. With hemoglobin as substrate at pH 3.2, more than 90% of the activity was inhibited by pepstatin. In each area studied, activity was more than twice as high in the old rat brain: 140-160% higher in the cortex, cerebellum, pons-medulla, and striatum and 90-100% higher in the hippocampus and spinal cord. The greatly increased metabolic capacity in the absence of an increase in protein turnover may have a role in age-related pathological degeneration in the brain.

journal_name

J Neurosci Res

authors

Kenessey A,Banay-Schwartz M,DeGuzman T,Lajtha A

doi

10.1002/jnr.490230412

subject

Has Abstract

pub_date

1989-08-01 00:00:00

pages

454-6

issue

4

eissn

0360-4012

issn

1097-4547

journal_volume

23

pub_type

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