Effects of chronic codergocrine mesylate administration on the brain somatostatinergic system in aged rats.

Abstract:

:Codergocrine mesylate (dihydroergotoxine; DHET), which is an ergot derivative, has been reported to counteract some age-induced impairments in brain function, but the mechanism of these effects is not known. We examined the effect of chronic DHET administration on the somatostatinergic system in the brains of aged rats. Intraperitoneal injections of DHET (1 mg/kg per day) or of vehicle were given to aged rats for 14 days, and resulted in a significant increase in somatostatin (SOM) receptor binding in all six brain regions examined except the hindbrain. DHET had no effect on SOM receptor binding in the brains of young-adult rats. However, the SOM concentration in aged rats was nearly identical to that in young-adult rats and the SOM concentration in different brain areas did not change after chronic administration of DHET. Thus, the present results suggest that chronic administration of DHET can ameliorate at least one of the age-induced impairments of brain somatostatinergic function.

journal_name

Arch Gerontol Geriatr

authors

Tanaka K,Ogawa N,Asanuma M,Hirata H,Kondo Y,Chou HH,Mori A

doi

10.1016/0167-4943(92)90013-t

subject

Has Abstract

pub_date

1992-09-01 00:00:00

pages

133-9

issue

2

eissn

0167-4943

issn

1872-6976

pii

016749439290013T

journal_volume

15

pub_type

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