Journal: Rheumatology International, 2005 Mar;25(2):146-51.
Authors: Denko CW, Malemud CJ.
Affiliation: Department of Medicine, Division of Rheumatic Diseases, Case Western Reserve University School of Medicine, Cleveland, Ohio, USA.
NLM Citation: PMID: 15759159
The GH concentration was significantly higher (P<0.001) in female fibromyalgia patients than age-matched, normal female subjects. In contrast, basal serum IGF-1 concentrations did not differ between these groups.
A scatter plot generated from two-stage, least-squares analysis showed that serum GH lacked correlation with the serum IGF-1 concentrations of normal female subjects (P=0.73) and female fibromyalgia patients (P=0.19). In addition to the results from serum GH and IGF-1 RIA, we also found significantly higher fasting serum insulin levels (P=0.03) in male fibromyalgia patients and a trend toward elevated fasting serum insulin levels in the female fibromyalgia population (P=0.07), with the mean fasting level in the male fibromyalgia group (35.7 muU/ml(-1)) exceeding the upper limit of normal serum insulin levels (i.e., 27 microU/ml(-1)).
Based on these results, basal serum GH and fasting serum insulin levels appear to be valuable surrogate markers in clinically active, normoglycemic fibromyalgia patients.
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Last Revision: March 12, 2005
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