期刊
OSTEOPOROSIS INTERNATIONAL
卷 20, 期 4, 页码 639-645出版社
SPRINGER LONDON LTD
DOI: 10.1007/s00198-008-0709-9
关键词
Bone mineral density; Lactose-phlorizin hydrolase; Osteoporosis; Polymorphism; Serum calcium
资金
- Semmelweis University
- [NKFP-1A/002/2004]
- [NKFP-1A/007/2004]
LCT 13910 CC genotype is associated with lactose intolerance, a condition often resulting in reduced milk intake. Women with the CC genotype were found to have decreased serum calcium and reduced bone mineral density. The CC genotype of the 13910 C/T polymorphism of the LCT gene is linked to lactose intolerance and low calcium intake. We studied 595 postmenopausal women, including 267 osteoporotic, 200 osteopenic, and 128 healthy subjects. Genotyping, osteodensitometry, and laboratory measurements were carried out. Frequency of aversion to milk consumption was 20% for CC genotype and 10% for TT + TC genotypes (p = 0.03). The albumin-adjusted serum calcium was 2.325 +/- 0.09 mmol/L for CC genotype and 2.360 +/- 0.16 mmol/L for TT + TC genotypes (p = 0.031). Bone mineral density (BMD; Z score) was lower in the CC than TT + TC genotypes, respectively, at the radius (0.105 +/- 1.42 vs 0.406 +/- 1.32; p = 0.038), at the total hip (-0.471 +/- 1.08 vs -0.170 +/- 1.09; p = 0.041), and at the Ward's triangle (-0.334 +/- 0.87 vs -0.123 +/- 0.82; p = 0.044). LCT 13910 C/T polymorphism is associated with decreased serum calcium level and lower BMD in postmenopausal women.
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