Differential sclerostin and parathyroid hormone response to exercise in boys and men
| Autor: | Bareket Falk, Panagiota Klentrou, Yasmeen Mezil, Shlomit Radom-Aizik, Kimberly Kish, Wendy E. Ward, Fadia Haddad |
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| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Genetic Markers
Male medicine.medical_specialty Aging Body Composition/physiology Endocrinology Diabetes and Metabolism Parathyroid hormone 030209 endocrinology & metabolism Physical exercise Osteocytes Article Weight-Bearing 03 medical and health sciences chemistry.chemical_compound Young Adult 0302 clinical medicine Engineering Internal medicine Parathyroid Hormone/*blood medicine Humans Exercise physiology Child Exercise Adaptor Proteins Signal Transducing Bone Morphogenetic Proteins/*blood Anthropometry business.industry Anthropometry/methods Exercise/*physiology Life Sciences Aging/blood/physiology 030229 sport sciences Rheumatology Endocrinology chemistry Parathyroid Hormone Osteocytes/physiology Bone Morphogenetic Proteins Body Composition Sclerostin business Bone structure WeightBearing/physiology |
| Zdroj: | Falk, B.; Haddad, F.; Klentrou, P.; Ward, W.; Kish, K.; Mezil, Y.; et al.(2015). Differential sclerostin and parathyroid hormone response to exercise in boys and men. Osteoporosis International, 27(3), 1245-1249. doi: 10.1007/s00198-015-3310-z. UC Irvine: Institute for Clinical and Translational Science. Retrieved from: http://www.escholarship.org/uc/item/9dt217xr |
| DOI: | 10.1007/s00198-015-3310-z. |
| Popis: | Physical exercise benefits bone structure and mineralization, especially in children. Immediately following high-impact exercise, PTH increased and returned to resting values within 24 h in both groups, while sclerostin increased in men but not in boys. The underlying mechanisms and implication of this age-related differential response are unclear.Circulating sclerostin, a negative regulator of bone, decreases during puberty and increases in adulthood. Parathyroid hormone (PTH) is inversely related to sclerostin. In mice, sclerostin decreases following 24 h of mechanical stimulation. Its response to exercise in humans and, especially in children, in whom high-impact physical exercise benefits bone structure and mineralization is unclear. The aim of this study was to investigate the acute response of sclerostin to a single exercise session of high mechanical loading and the corresponding changes in PTH in boys and men.Twelve boys (10.2 ± 0.4 years old) and 17 young men (22.7 ± 0.8 years old) underwent a protocol of plyometric exercises (total 144 jumps). Blood samples were collected pre-, 5 min, 1 h, and 24 h post-exercise.Boys had significantly higher resting values of sclerostin compared with men (150 ± 37 vs. 111 ± 34 pg/ml, respectively, p = 0.006). Following exercise, sclerostin markedly increased in men but this response was attenuated in boys (at 5 min: 51 ± 38 vs. 14 ± 21%, respectively, p = 0.005). PTH levels were similar in boys and men at rest and throughout the 24-h study period, increasing significantly (p 0.001) 5 min after exercise, decreasing after 60 min post-exercise and returning to resting values within 24 h.Although the PTH response was similar in boys and men, the sclerostin response was greater in men. The combined increases in PTH and sclerostin immediately post-exercise appear contrary to the accepted osteogenic effect of exercise. The underlying mechanisms and full implication of the differential response between children and adults need to be further examined. |
| Databáze: | OpenAIRE |
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