Reduced fibroblast growth factor 21 and β-Klotho secretion in untreated congenital isolated GH deficiency

Purposes Increasing evidence suggests that the FGF-Klotho endocrine system and the somatotropic system (pituitary and extra-pituitary GH) may have important metabolic and immune relationships, thus contributing to the pathophysiology of aging-related disorders, including diabetes, atherosclerosis, a...

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Bibliographic Details
Published in:Endocrine 2021-07, Vol.73 (1), p.160-165
Main Authors: Oliveira-Santos, Alécia A., Salvatori, Roberto, Bueno, Ana C., Nogueira, Monica C., Campos, Viviane C., Melo, Manuela A., Oliveira, Carla R. P., Barros-Oliveira, Cynthia S., Marinho, Cindi G., Damascena, Nayra P., Santos, Elenilde G., Melo, Enaldo V., de Paula, Francisco J. A., de Castro, Margaret, Aguiar-Oliveira, Manuel H.
Format: Article
Language:English
Subjects:
Adult
Aging
Arteriosclerosis
Cross-Sectional Studies
Diabetes
Diabetes mellitus
Dwarfism, Pituitary
Endocrine system
Endocrinology
Fibroblast Growth Factors
Growth hormone
Growth hormone-releasing hormone
Humanities and Social Sciences
Humans
Insulin-like growth factor I
Internal Medicine
Klotho protein
Male
Medicine
Medicine & Public Health
multidisciplinary
Original Article
Pituitary
Science
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Summary:Purposes Increasing evidence suggests that the FGF-Klotho endocrine system and the somatotropic system (pituitary and extra-pituitary GH) may have important metabolic and immune relationships, thus contributing to the pathophysiology of aging-related disorders, including diabetes, atherosclerosis, and cancer. The status of these interactions in isolated GH deficiency (IGHD) is unknown. The objective of this study was to assess the response of both FGF21 and β-Klotho levels to a standard meal in a homogeneous group of adults with congenital untreated IGHD due to a homozygous mutation in the GHRH receptor gene. Methods In a cross-sectional study, we measured the levels of FGF21 and β-Klotho, before and 30, 60, 120, and 180 min after a standardized test meal in 20 (11 males) IGHD and 20 (11 males) age-matched controls. Areas under the curves (AUC) of FGF21 and β-Klotho were calculated. Results Baseline levels of FGF21 were similar, but baseline levels of β-Klotho were lower in IGHD subjects. The IGHD individuals exhibited lower AUC for FGF21 and β-Klotho levels than control subjects. There was a positive correlation between IGF1 and β-Klotho levels in the pooled groups. No correlation was found between IGF1 and FGF21 levels. Conclusions Subjects with lifetime, untreated IGHD exhibit reduced FGF21 and β-Klotho levels response to a mixed meal. This difference may have consequences on metabolism and aging.
ISSN:1355-008X
1559-0100
DOI:10.1007/s12020-021-02700-6