Document Detail


On the effects of human galanin in man.
MedLine Citation:
PMID:  7689499     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Human galanin was recently isolated and sequenced and was found to differ from porcine galanin, hitherto used for studies in humans, in several important respects. We therefore synthesized and purified human galanin and infused it i.v. at a rate of 74 pmol.kg-1.min-1 into six healthy volunteers for 60 min during a hyperglycaemic clamp. The clamp was achieved by i.v. infusion of glucose at a rate which in a control experiment had been demonstrated to maintain the plasma glucose level at 12-13 mmol/l for 90 min. Galanin concentrations reached a plateau of approximately 1500 pmol/l throughout the infusion as opposed to pre-infusion and control levels of 20-30 pmol/l. The glucose levels obtained in the two experiments were indistinguishable. Plasma levels of C-peptide and insulin increased significantly in both experiments and the dynamic concentration curves were almost identical. Glucagon concentrations in plasma decreased significantly and similarly. Growth hormone levels, however, increased eight-fold during galanin infusions. Galanin was eliminated from plasma with a half-life of 3.7 +/- 0.4 min, similar to that of porcine galanin. It is concluded that human galanin powerfully stimulates growth hormone secretion in man, but has no effect on pancreatic endocrine secretion or glucose metabolism in the concentrations obtained in this study.
Authors:
J J Holst; M Bersani; A Hvidberg; U Knigge; E Christiansen; S Madsbad; H Harling; H Kofod
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Diabetologia     Volume:  36     ISSN:  0012-186X     ISO Abbreviation:  Diabetologia     Publication Date:  1993 Jul 
Date Detail:
Created Date:  1993-09-24     Completed Date:  1993-09-24     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0006777     Medline TA:  Diabetologia     Country:  GERMANY    
Other Details:
Languages:  eng     Pagination:  653-7     Citation Subset:  IM    
Affiliation:
Department of Medical Physiology, Panum Institute, University of Copenhagen, Denmark.
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MeSH Terms
Descriptor/Qualifier:
Adult
Blood Glucose / metabolism*
C-Peptide / blood*
Galanin
Glucose Clamp Technique
Growth Hormone / blood
Humans
Infusions, Intravenous
Insulin / blood*
Kinetics
Male
Middle Aged
Neuropeptides / pharmacology*
Peptides / administration & dosage,  blood,  pharmacology*
Chemical
Reg. No./Substance:
0/Blood Glucose; 0/C-Peptide; 0/Neuropeptides; 0/Peptides; 11061-68-0/Insulin; 88813-36-9/Galanin; 9002-72-6/Growth Hormone

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