Expression of vasoactive intestinal polypeptide and calcitonin gene-related peptide in human stellate ganglia after acute myocardial infarction.
Using the method of indirect immunofluorescence the distribution of vasoactive intestinal polypeptide (VIP) and calcitonin gene-related peptide (CGRP) was investigated in autopsy specimens of human stellate ganglia following acute myocardial infarction (AMI). The dramatic increase of both VIP- and CGRP-immunoreactivities in principal ganglionic neurons as well as of calcitonin gene-related peptide in perineuronal nets was revealed. It was concluded that hypoxia and myocardial ischaemia following AMI are the main inducing factors for activation of both vasoactive regulatory neuropeptide synthesis. The upregulation of VIP and CGRP expression in sympathetic ganglionic neurons may provide regulatory and trophic support to the ischaemic heart.
Roudenok
V
V
Department of Human Anatomy, Belarusian State Medical University, Minsk. roudenok@msmi.minsk.by
Gutjar
L
L
Antipova
V
V
Rogov
Y
Y
D001344:Autopsy; D015740:Calcitonin Gene-Related Peptide / Q000032:analysis*; D006801:Humans; D008875:Middle Aged; D009203:Myocardial Infarction / Q000473:pathology*; D009412:Nerve Fibers / Q000473:pathology / Q000648:ultrastructure; D009474:Neurons / Q000166:cytology / Q000473:pathology*; D012016:Reference Values; D013233:Stellate Ganglion / Q000166:cytology / Q000473:pathology*; D014660:Vasoactive Intestinal Peptide / Q000032:analysis*
D014660:Vasoactive Intestinal Peptide; D015740:Calcitonin Gene-Related Peptide