GH and IGF-I levels are positively associated with musculotendinous collagen expression: Experiments in acromegalic and GHD patients

Simon Doessing, Lars Holm, Katja Heinemeier, U.F. Rasmusen, P. Schjerling, K Qvortrup, Jytte Overgaard Larsen, Rie H Nielsen, A Flyvbjerg, Michael Kjær

Research output: Contribution to journalArticlepeer-review

34 Citations (Scopus)

Abstract

OBJECTIVE: Disproportionate growth of musculoskeletal tissue is a major cause of morbidity in both acromegalic (ACRO) and GH-deficient (GHD) patients. GH/IGF1 is likely to play an important role in the regulation of tendon and muscle collagen. We hypothesized that the local production of collagen is associated with the level of GH/IGF1.DESIGN AND METHODS: As primary outcomes, collagen mRNA expression and collagen protein fractional synthesis rate (FSR) were determined locally in skeletal muscle and tendon in nine ACRO and nine GHD patients. Moreover, muscle myofibrillar protein synthesis and tendon collagen morphology were determined.RESULTS AND CONCLUSIONS: Muscle collagen I and III mRNA expression was higher in ACRO patients versus GHD patients (P
Original languageEnglish
Pages (from-to)853-862
Number of pages10
JournalEuropean Journal of Endocrinology
Volume163
Issue number6
DOIs
Publication statusPublished - 1 Dec 2010

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