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Glucocorticoid receptor (NR3C1) gene polymorphisms are associated with age and blood parameters in Polish Caucasian nonagenarians and centenarians.
Experimental Gerontology 2018 December 13
INTRODUCTION: Polymorphism of the glucocorticoid receptor gene (NR3C1) may modify protein abundance or function and therefore disturb human homeostasis.
METHODS: Variant frequencies of the three NR3C1 polymorphisms, rs2963154, rs10515522 and rs2918418, selected in silico as associated with longevity, was analyzed in 552 DNA samples from 95 to 106-year-old individuals and in 284 samples of cord blood DNA from newborns.
RESULTS: Frequencies of the TT genotypes of rs2963154 and rs10515522, and of the rs291841 CC genotype, were higher in the long-lived study subjects (p = 0.002, p = 0.016 and p = 0.028, respectively). In the long-lived cohort, the rs2963154 CC genotype was associated with higher concentrations of total (p = 0.007) and high-density cholesterol (p = 0.039). The rs10515522 CC genotype was associated with a higher concentration of total cholesterol (p = 0.049). The rs2918418 GG genotype was associated with higher concentrations of total (p = 0.03) and low-density cholesterol (p = 0.03). None of the polymorphisms was associated with fasting glucose, C-reactive protein levels and white blood count, prevalence of diabetes, stroke, myocardial infarction, or cognitive function. However, carriers of the rs10515522 minor allele had significantly better survival rates than carriers of other genotypes.
CONCLUSION: NR3C1 polymorphisms modify cholesterol levels, and may affect the survival rates of individuals in their tenth and eleventh decades of life.
METHODS: Variant frequencies of the three NR3C1 polymorphisms, rs2963154, rs10515522 and rs2918418, selected in silico as associated with longevity, was analyzed in 552 DNA samples from 95 to 106-year-old individuals and in 284 samples of cord blood DNA from newborns.
RESULTS: Frequencies of the TT genotypes of rs2963154 and rs10515522, and of the rs291841 CC genotype, were higher in the long-lived study subjects (p = 0.002, p = 0.016 and p = 0.028, respectively). In the long-lived cohort, the rs2963154 CC genotype was associated with higher concentrations of total (p = 0.007) and high-density cholesterol (p = 0.039). The rs10515522 CC genotype was associated with a higher concentration of total cholesterol (p = 0.049). The rs2918418 GG genotype was associated with higher concentrations of total (p = 0.03) and low-density cholesterol (p = 0.03). None of the polymorphisms was associated with fasting glucose, C-reactive protein levels and white blood count, prevalence of diabetes, stroke, myocardial infarction, or cognitive function. However, carriers of the rs10515522 minor allele had significantly better survival rates than carriers of other genotypes.
CONCLUSION: NR3C1 polymorphisms modify cholesterol levels, and may affect the survival rates of individuals in their tenth and eleventh decades of life.
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