GH Responsiveness to Combined GH-Releasing Hormone and Arginine Administration in Obese Patients with Fibromyalgia Syndrome

Reportedly, fibromyalgia (FM) is frequently associated with reduced IGF-1 levels and GH hyporesponsiveness to different GH stimulation tests. Since there is a high prevalence of obesity in FM, and obesity itself is characterized by hyposomatotropism, the aim of this study was to assess IGF-1 levels...

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Main Authors: Antonello E. Rigamonti, Graziano Grugni, Marco Arreghini, Paolo Capodaglio, Alessandra De Col, Fiorenza Agosti, Alessandro Sartorio
Format: Article
Language:English
Published: Wiley 2017-01-01
Series:International Journal of Endocrinology
Online Access:http://dx.doi.org/10.1155/2017/3106041
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author Antonello E. Rigamonti
Graziano Grugni
Marco Arreghini
Paolo Capodaglio
Alessandra De Col
Fiorenza Agosti
Alessandro Sartorio
author_facet Antonello E. Rigamonti
Graziano Grugni
Marco Arreghini
Paolo Capodaglio
Alessandra De Col
Fiorenza Agosti
Alessandro Sartorio
author_sort Antonello E. Rigamonti
collection DOAJ
description Reportedly, fibromyalgia (FM) is frequently associated with reduced IGF-1 levels and GH hyporesponsiveness to different GH stimulation tests. Since there is a high prevalence of obesity in FM, and obesity itself is characterized by hyposomatotropism, the aim of this study was to assess IGF-1 levels and GH responsiveness in sixteen severely obese women suffering from FM, who, subdivided into two subgroups on the basis of their age-dependent IGF-1 values (> or <−2 SDS), underwent the combined GHRH plus arginine test. Four out of 16 obese women with FM (25%) had low IGF-1 SDS values, 2 cases of this subgroup (12.5%) failing also to normally respond to the test. Among patients with normal GH responses, 4 showed a delayed GH peak. The subgroup with low IGF-1 SDS values had higher BMI than that with normal IGF-1 SDS. GH peak and area under the curve were not correlated with CRP, ESR, or tender point score, while significant correlations were found with fat-free mass and fat mass. In conclusion, this study shows the existence of a high prevalence of GH-IGF-1 dysfunction in patients with both FM and obesity, presumably as a consequence of the obese rather than fibromyalgic condition.
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spelling doaj-art-a4d6ad463038467d959f12a6c64cffe12025-02-03T01:03:21ZengWileyInternational Journal of Endocrinology1687-83371687-83452017-01-01201710.1155/2017/31060413106041GH Responsiveness to Combined GH-Releasing Hormone and Arginine Administration in Obese Patients with Fibromyalgia SyndromeAntonello E. Rigamonti0Graziano Grugni1Marco Arreghini2Paolo Capodaglio3Alessandra De Col4Fiorenza Agosti5Alessandro Sartorio6Department of Clinical Sciences and Community Health, University of Milan, Milan, ItalyExperimental Laboratory for Auxo-Endocrinological Research, Istituto Auxologico Italiano, IRCCS, Milan and Verbania, ItalyOrthopedic Rehabilitation Unit, IRCCS, Istituto Auxologico Italiano, IRCCS, Verbania, ItalyOrthopedic Rehabilitation Unit, IRCCS, Istituto Auxologico Italiano, IRCCS, Verbania, ItalyExperimental Laboratory for Auxo-Endocrinological Research, Istituto Auxologico Italiano, IRCCS, Milan and Verbania, ItalyExperimental Laboratory for Auxo-Endocrinological Research, Istituto Auxologico Italiano, IRCCS, Milan and Verbania, ItalyExperimental Laboratory for Auxo-Endocrinological Research, Istituto Auxologico Italiano, IRCCS, Milan and Verbania, ItalyReportedly, fibromyalgia (FM) is frequently associated with reduced IGF-1 levels and GH hyporesponsiveness to different GH stimulation tests. Since there is a high prevalence of obesity in FM, and obesity itself is characterized by hyposomatotropism, the aim of this study was to assess IGF-1 levels and GH responsiveness in sixteen severely obese women suffering from FM, who, subdivided into two subgroups on the basis of their age-dependent IGF-1 values (> or <−2 SDS), underwent the combined GHRH plus arginine test. Four out of 16 obese women with FM (25%) had low IGF-1 SDS values, 2 cases of this subgroup (12.5%) failing also to normally respond to the test. Among patients with normal GH responses, 4 showed a delayed GH peak. The subgroup with low IGF-1 SDS values had higher BMI than that with normal IGF-1 SDS. GH peak and area under the curve were not correlated with CRP, ESR, or tender point score, while significant correlations were found with fat-free mass and fat mass. In conclusion, this study shows the existence of a high prevalence of GH-IGF-1 dysfunction in patients with both FM and obesity, presumably as a consequence of the obese rather than fibromyalgic condition.http://dx.doi.org/10.1155/2017/3106041
spellingShingle Antonello E. Rigamonti
Graziano Grugni
Marco Arreghini
Paolo Capodaglio
Alessandra De Col
Fiorenza Agosti
Alessandro Sartorio
GH Responsiveness to Combined GH-Releasing Hormone and Arginine Administration in Obese Patients with Fibromyalgia Syndrome
International Journal of Endocrinology
title GH Responsiveness to Combined GH-Releasing Hormone and Arginine Administration in Obese Patients with Fibromyalgia Syndrome
title_full GH Responsiveness to Combined GH-Releasing Hormone and Arginine Administration in Obese Patients with Fibromyalgia Syndrome
title_fullStr GH Responsiveness to Combined GH-Releasing Hormone and Arginine Administration in Obese Patients with Fibromyalgia Syndrome
title_full_unstemmed GH Responsiveness to Combined GH-Releasing Hormone and Arginine Administration in Obese Patients with Fibromyalgia Syndrome
title_short GH Responsiveness to Combined GH-Releasing Hormone and Arginine Administration in Obese Patients with Fibromyalgia Syndrome
title_sort gh responsiveness to combined gh releasing hormone and arginine administration in obese patients with fibromyalgia syndrome
url http://dx.doi.org/10.1155/2017/3106041
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