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1 . 2017

The study of rs11801197 polymorphism of the calcitonin receptor gene (CALCR) in Moscow women and children with different level of bone strength

Abstract

The frequency of the polymorphism rs11801197 of calcitonin receptor gene (CALCR) was studied by real-time PCR in 422 Moscow women and children, including pregnant women (n=96), lactating (n=29) and non-pregnant women (n=28) and children (n=269) of preschool (2-6 years, n=76) and school age (7-16 years, n=193) with different levels of bone strength (BS) as determined by ultrasound densitometry. It was found that the decrease in the value of the BS (Z-score<-1) was observed in 60% of women, 54% of preschool children and 48% of school children. In the cohort studied the predominant genotype of rs11801197 polymorphism of CALCR gene was CT (38%), the frequency of the genotypes CC and TT - 31%, C and T allele - 50%. There was statistically significant association of BS reduction risk with a C allele of rs11801197polymorphism of CALCR gene in all examined women (QR=2.034, p=0.02). A positive but not statistically significant association of BS reduction risk with C allele of polymorphism in non-pregnant andpregnant women was found (OR=6.905, p=0.09 and OR=1.902, p=0.09 respectively). The same tendency was observed in preschool children (OR= 1.880, p=0.104). In school-aged children C allele was not associated with the risk of BS reduction (OR=0.866, p=0.595). Thus, the allele C is the risk allele of BS reduction. The frequency of CC genotype in Moscow women is much higher than that in women in Europe and in women of North-West region of Russian Federation. Women in the Moscow region - the carriers of rs11801197 polymorphism of CALR - gene need in personalized support of their bone health.

Keywords:osteoporosis, women, calcitonin receptor gene (CALCR), genetic polymorphism, preschoolers, school-aged children, pregnant and lactating women

Voprosy pitaniia [Problems of Nutrition]. 2017; 86 (1): 28-34. doi: 10.24411/0042-8833-2017-00017.

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CHIEF EDITOR
CHIEF EDITOR
Viktor A. Tutelyan
Full Member of the Russian Academy of Sciences, Doctor of Medical Sciences, Professor, Scientific Director of the Federal Research Centre of Nutrition, Biotechnology and Food Safety (Moscow, Russia)

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