The influence of aging and hypertension on cerebral autoregulation.

Abstract:

:Cerebral autoregulation was tested here in 3- and 18-month-old spontaneously hypertensive rats (SHR) and Wistar Kyoto controls (WKY). Cerebral blood flow (CBF) was measured in each rat using radioactive micropheres under unanesthetized control conditions and after hypotension induced by ganglionic blockade. Under control conditions there was no significant difference in CBF between SHR and WKY. During drug induced hypotension CBF decreased significantly in all except 3 month WKY. CBF was decreased significantly more in 18 month SHR after ganglionic blockade compared to other test groups. These results indicate an influence of both age and hypertension in altering the ability of the cerebrovasculature to autoregulate.

journal_name

Brain Res

journal_title

Brain research

authors

Hoffman WE,Albrecht RF,Miletich DJ

doi

10.1016/0006-8993(81)90454-6

subject

Has Abstract

pub_date

1981-06-09 00:00:00

pages

196-9

issue

1

eissn

0006-8993

issn

1872-6240

pii

0006-8993(81)90454-6

journal_volume

214

pub_type

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