Document Detail


Insulin-like growth factor I stimulates growth in normal growing rats.
MedLine Citation:
PMID:  3732389     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The scarcity of purified somatomedin/insulin-like growth factor (SM/IGF) has prevented investigation of the mechanisms of SM/IGF action. Recently insulin-like growth factor I (IGF-I) has been synthesized by recombinant DNA technology. The availability of large quantities of the biosynthetic IGF-I made it possible to study its effects by administering 120 micrograms/day via s.c. implanted minipump to rats for 7 days. After this 7 day administration of IGF-I, the body weight increased to 197.6 +/- 3.5% of initial values; the value was significantly greater than that of the control (179.4 +/- 3.7% of initial values, P less than 0.01). The body length and tibial epiphyseal width in IGF-I-treated rats were also significantly increased over those of control rats. The weights of kidneys, liver, testes and pituitary in IGF-I-treated rats were greater than those in control rats as well. These results provide a first demonstration that IGF-I stimulates growth in normal rats in vivo, and suggest that IGF-I might be useful in the treatment of growth retardation.
Authors:
N Hizuka; K Takano; K Shizume; K Asakawa; M Miyakawa; I Tanaka; R Horikawa
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  European journal of pharmacology     Volume:  125     ISSN:  0014-2999     ISO Abbreviation:  Eur. J. Pharmacol.     Publication Date:  1986 Jun 
Date Detail:
Created Date:  1986-09-16     Completed Date:  1986-09-16     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  1254354     Medline TA:  Eur J Pharmacol     Country:  NETHERLANDS    
Other Details:
Languages:  eng     Pagination:  143-6     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Animals
Body Weight / drug effects
Growth / drug effects*
Growth Plate / drug effects
Insulin-Like Growth Factor I / blood,  pharmacology*
Male
Organ Size / drug effects
Rats
Rats, Inbred Strains
Somatomedins / pharmacology*
Chemical
Reg. No./Substance:
0/Somatomedins; 67763-96-6/Insulin-Like Growth Factor I

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


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