| Literature DB >> 6719122 |
Abstract
In vitro pharmacological studies demonstrated that exogenously applied vasoactive intestinal polypeptide (VIP) relaxes the smooth muscle cells of cat cerebral arteries, whereas substance P constricts them. Ultrastructural-immunocytochemical techniques show that a VIP-like substance is present in the large granular vesicles of nonsympathetic nerve axons and terminals in the cerebral arterial walls. These results provide strong evidence in favor of the hypothesis that a VIP-like substance is the transmitter for vasodilation in cerebral blood vessels.Entities:
Mesh:
Substances:
Year: 1984 PMID: 6719122 DOI: 10.1126/science.6719122
Source DB: PubMed Journal: Science ISSN: 0036-8075 Impact factor: 47.728