These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Autoregulation of cerebral blood flow in young and aged spontaneously hypertensive rats (SHR).
    Author: Fujishima M, Sadoshima S, Ogata J, Yoshida F, Shiokawa O, Ibayashi S, Omae T.
    Journal: Gerontology; 1984; 30(1):30-6. PubMed ID: 6698406.
    Abstract:
    Autoregulation of cerebral blood flow (CBF) to the controlled hemorrhagic hypotension was studied in young adult spontaneously hypertensive rats (SHR, 3.4 months of age) and aged SHR (20.3 months). There were no differences in average values for mean arterial pressure and baseline CBF between two groups of rats. During hypotension, however, CBF was more reduced in aged SHR than in young SHR, indicating that the lower limit of cerebral autoregulation is shifted to a higher level in aged SHR. Such upward shift of the autoregulation is likely due to a long-lasting hypertension which may lead to the diminished vasodilatory response of the brain to hypotension.
    [Abstract] [Full Text] [Related] [New Search]