Immunohistochemical localization and vascular effects of vasoactive intestinal polypeptide in skeletal muscle of the cat

Research output: Contribution to journalArticle

Abstract

Scattered vasoactive intestinal polypeptide (VIP)-immunoreactive nerves were found in the striated muscle of the hind limb of the cat, where they usually were associated with small blood vessels. VIP-immunoreactive nerves were also demonstrated in the sciatic nerve; after ligation an abundance of intensely immunoreactive VIP fibres were seen proximal to the ligation. Intraarterial infusion of VIP into isolated hind limb of the cat had dramatic effects on different sections of the vascular bed. Thus, VIP dilated the resistance vessels leading to a marked increment in muscle blood flow. VIP also relaxed the capacitance vessels causing regional pooling of blood; it increased the capillary surface area available for fluid exchange. Infusions of VIP at a dose of 8 microgram/min significantly inhibited the vasoconstriction, induced by electrical stimulation of the regional sympathetic nerves. It is suggested that local nervous release of VIP may act as a modulator of vascular tone in skeletal muscle.

Details

Authors
Organisations
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Cell Biology

Keywords

  • Skeletal muscle (cat), Vasoactive intestinal polypeptide (VIP), Peptidergic nerves, Vascular effects
Original languageEnglish
Pages (from-to)55-64
JournalCell and Tissue Research
Volume207
Issue number1
Publication statusPublished - 1980
Publication categoryResearch
Peer-reviewedYes

Bibliographic note

The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Vascular Physiology (013212034), Neuroendocrine Cell Biology (013212008)