Document Detail


Evidence that enhancement of cholinergic tone increases basal plasma levels of calcitonin gene-related peptide in normal man.
MedLine Citation:
PMID:  8126154     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
To investigate the influence of the cholinergic system on the modulation of the circulating levels of calcitonin gene-related peptide (CGRP) under basal conditions in normal man, the effects of an acetylcholinesterase inhibitor, pyridostigmine bromide, and a muscarinic receptor blocker, pirenzepine, were studied in 16 normal subjects (8 females and 8 males). Pyridostigmine (120 mg, orally) induced a significant (P < 0.01) rise in basal plasma CGRP, while it reduced systolic and diastolic blood pressure. In all subjects, pirenzepine (0.6 mg/kg, i.v. bolus) was unable to modify the basal CGRP level. In conclusion, a pharmacologically induced enhancement of cholinergic tone resulted in an increase in CGRP, whereas muscarinic receptor blockade had no effect on CGRP levels or blood pressure. Therefore, the cholinergic system seems to be involved in the control of CGRP release in man, acting as a positive modulator. However, the available data do not indicate that there is a tonic cholinergic tone responsible for CGRP secretion under physiological conditions.
Authors:
G Trasforini; A Margutti; L Vergnani; M R Ambrosio; A Valentini; R Rossi; F Portaluppi; E C Degli Uberti
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Journal of clinical endocrinology and metabolism     Volume:  78     ISSN:  0021-972X     ISO Abbreviation:  J. Clin. Endocrinol. Metab.     Publication Date:  1994 Mar 
Date Detail:
Created Date:  1994-04-12     Completed Date:  1994-04-12     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0375362     Medline TA:  J Clin Endocrinol Metab     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  763-6     Citation Subset:  AIM; IM    
Affiliation:
Department of Endocrinology, University of Ferrara, Italy.
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MeSH Terms
Descriptor/Qualifier:
Adult
Calcitonin Gene-Related Peptide / blood*
Female
Humans
Male
Osmolar Concentration
Parasympathetic Nervous System / drug effects,  physiology*
Pirenzepine / pharmacology
Pyridostigmine Bromide / pharmacology
Reference Values
Chemical
Reg. No./Substance:
101-26-8/Pyridostigmine Bromide; 28797-61-7/Pirenzepine; 83652-28-2/Calcitonin Gene-Related Peptide

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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