Document Detail

Integrity of the growth hormone/insulin-like growth factor system is maintained in patients with chronic fatigue syndrome.
MedLine Citation:
PMID:  10770178     Owner:  NLM     Status:  MEDLINE    
GH deficiency states and chronic fatigue syndrome (CFS) share several characteristics, and preliminary studies have revealed aspects of GH dysfunction in CFS. This study assessed indexes of GH function in 37 medication-free CFS patients without comorbid psychiatric illness and 37 matched healthy controls. We also assessed GH function before and after treatment with low dose hydrocortisone, which has been shown recently to reduce fatigue in CFS. We measured basal levels of serum insulin-like growth factor I (IGF-I), IGF-II, IGF-binding protein-1 (IGFBP-1), IGFBP-2 and IGFBP-3 together with 24-h urinary GH excretion. We also performed 2 dynamic tests of GH function: a 100-microg GHRH test and an insulin stress test using 0.15 U/kg BW insulin. There were no differences between patients and controls in basal levels of IGF/IGFBP or in urinary GH excretion. GH responses to both the GHRH test and the insulin stress test were no different in patients and controls. CFS patients did have a marginally reduced suppression of IGFBP-1 during the insulin stress test. Hydrocortisone treatment had no significant effect on any of these parameters. There is no evidence of GH deficiency in CFS. At the doses used, hydrocortisone treatment appears to have little impact on GH function.
A J Cleare; S S Sookdeo; J Jones; V O'Keane; J P Miell
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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:  85     ISSN:  0021-972X     ISO Abbreviation:  J. Clin. Endocrinol. Metab.     Publication Date:  2000 Apr 
Date Detail:
Created Date:  2000-05-01     Completed Date:  2000-05-01     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:  1433-9     Citation Subset:  AIM; IM    
Department of Psychological Medicine, Guy's King's and St. Thomas' School of Medicine, and the Institute of Psychiatry, London, United Kingdom.
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MeSH Terms
Exercise Test
Fatigue Syndrome, Chronic / drug therapy,  physiopathology*
Growth Hormone-Releasing Hormone / diagnostic use
Human Growth Hormone / blood,  physiology*
Hydrocortisone / therapeutic use
Insulin / diagnostic use
Insulin-Like Growth Factor Binding Protein 1 / blood
Insulin-Like Growth Factor Binding Protein 2 / blood
Insulin-Like Growth Factor Binding Protein 3 / blood
Insulin-Like Growth Factor Binding Proteins / physiology*
Insulin-Like Growth Factor I / analysis,  physiology*
Insulin-Like Growth Factor II / analysis,  physiology*
Reg. No./Substance:
0/Insulin-Like Growth Factor Binding Protein 1; 0/Insulin-Like Growth Factor Binding Protein 2; 0/Insulin-Like Growth Factor Binding Protein 3; 0/Insulin-Like Growth Factor Binding Proteins; 11061-68-0/Insulin; 12629-01-5/Human Growth Hormone; 50-23-7/Hydrocortisone; 67763-96-6/Insulin-Like Growth Factor I; 67763-97-7/Insulin-Like Growth Factor II; 9034-39-3/Growth Hormone-Releasing Hormone

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

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