Analysis of polymorphism of bone metabolism genes and evaluation of the risk of osteopenia in cosmonauts
| Autor: | V. E. Novikov, M. V. Aseev, L. V. Voitulevich, Vladislav S Baranov, V. S. Oganov, A. V. Bakulin, M. V. Moskalenko, O. E. Kabitskaya |
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| Rok vydání: | 2012 |
| Předmět: |
musculoskeletal diseases
Bone mineral medicine.medical_specialty Bone density Physiology business.industry musculoskeletal neural and ocular physiology Osteoporosis Heterozygote advantage medicine.disease Calcitriol receptor Bone remodeling Osteopenia Endocrinology Physiology (medical) Internal medicine Genotype medicine business |
| Zdroj: | Scopus-Elsevier |
| ISSN: | 1608-3164 0362-1197 |
| DOI: | 10.1134/s0362119712070183 |
| Popis: | Densitometry of cosmonauts following long-duration missions shows reduction of bone mineral density (BMD). On the average, post-flight BMD remains within the normal range and the broad variability of individual BMD values sometimes is qualified as local osteopenia. Individual reactions are typed by similarity of amount and rate of BMD loss. At present, analysis of functionally significant polymorphism of bone metabolism genes is the most effective instrument for diagnostics of susceptibility to osteopenia and osteoporosis. The investigation was aimed to analyze polymorphism of genes of vitamin-D and (VDR) and calcitonin (CALCR) receptors, and of collagen-1 alpha-1-chain (Col1a-1) in candidate cosmonauts and cosmonauts returned from 5 to 7-mo. missions. According to the results of analysis, in the majority of cosmonauts rapid BMD loss correlated with TT genotype by VDR gene but not with genotypes Tt and tt and associated with carriage of incomplete s-allele in the Col1a1 gene. Yet, in several instances high BMD loss rates were personified with carriers of VDR gene alleles (homo- and heterozygote states--tt and Tt) and heterozygote by Col1a1 gene (Ss). |
| Databáze: | OpenAIRE |
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