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Relationship of osteocalcin and matrix Gla protein gene polymorphisms to serum osteocalcin levels and bone mineral density in postmenopausal Korean women. 2006

Jung Gu Kim, and Seung-Yup Ku, and Dong Ock Lee, and Byung Chul Jee, and Chang Suk Suh, and Seok Hyun Kim, and Young Min Choi, and Shin Yong Moon
Department of Obstetrics and Gynecology, College of Medicine, Seoul National University, Seoul, Korea. kimjg@plaza.snu.ac.kr

OBJECTIVE To investigate the relationship of osteocalcin and matrix Gla protein (MGP) gene polymorphisms to serum osteocalcin levels, and bone mineral density (BMD) in postmenopausal Korean women. METHODS The osteocalcin gene Hind III and MGP gene cytosine-adenine polymorphisms were analyzed in 267 postmenopausal Korean women. Serum osteocalcin, bone alkaline phosphatase, C-telopeptide of type I collagen, and BMD at the lumbar spine and femoral neck were measured. RESULTS No significant differences in BMD of the lumbar spine and femoral neck were observed across MGP genotypes, whereas a significant lower BMD at the lumbar spine (but not at the femoral neck) was observed in women with the (h) allele (lower case 'h' signifies the presence of the Hind III site) in a dose-response manner. Serum osteocalcin levels among bone turnover markers studied were significantly higher in women without the 210-bp MGP (cytosine-adenine) allele, or with the osteocalcin hh genotype. CONCLUSIONS The osteocalcin gene Hind III polymorphism is a genetic factor that is associated with BMD of the lumbar spine in Korean women, and Gla gene polymorphisms are associated with higher osteocalcin levels.

UI MeSH Term Description Entries
D007723 Korea Former kingdom, located on Korea Peninsula between Sea of Japan and Yellow Sea on east coast of Asia. In 1948, the kingdom ceased and two independent countries were formed, divided by the 38th parallel.
D008159 Lumbar Vertebrae VERTEBRAE in the region of the lower BACK below the THORACIC VERTEBRAE and above the SACRAL VERTEBRAE. Vertebrae, Lumbar
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D010455 Peptides Members of the class of compounds composed of AMINO ACIDS joined together by peptide bonds between adjacent amino acids into linear, branched or cyclical structures. OLIGOPEPTIDES are composed of approximately 2-12 amino acids. Polypeptides are composed of approximately 13 or more amino acids. PROTEINS are considered to be larger versions of peptides that can form into complex structures such as ENZYMES and RECEPTORS. Peptide,Polypeptide,Polypeptides
D011110 Polymorphism, Genetic The regular and simultaneous occurrence in a single interbreeding population of two or more discontinuous genotypes. The concept includes differences in genotypes ranging in size from a single nucleotide site (POLYMORPHISM, SINGLE NUCLEOTIDE) to large nucleotide sequences visible at a chromosomal level. Gene Polymorphism,Genetic Polymorphism,Polymorphism (Genetics),Genetic Polymorphisms,Gene Polymorphisms,Polymorphism, Gene,Polymorphisms (Genetics),Polymorphisms, Gene,Polymorphisms, Genetic
D011859 Radiography Examination of any part of the body for diagnostic purposes by means of X-RAYS or GAMMA RAYS, recording the image on a sensitized surface (such as photographic film). Radiology, Diagnostic X-Ray,Roentgenography,X-Ray, Diagnostic,Diagnostic X-Ray,Diagnostic X-Ray Radiology,X-Ray Radiology, Diagnostic,Diagnostic X Ray,Diagnostic X Ray Radiology,Diagnostic X-Rays,Radiology, Diagnostic X Ray,X Ray Radiology, Diagnostic,X Ray, Diagnostic,X-Rays, Diagnostic
D002135 Calcium-Binding Proteins Proteins to which calcium ions are bound. They can act as transport proteins, regulator proteins, or activator proteins. They typically contain EF HAND MOTIFS. Calcium Binding Protein,Calcium-Binding Protein,Calcium Binding Proteins,Binding Protein, Calcium,Binding Proteins, Calcium,Protein, Calcium Binding,Protein, Calcium-Binding
D004247 DNA A deoxyribonucleotide polymer that is the primary genetic material of all cells. Eukaryotic and prokaryotic organisms normally contain DNA in a double-stranded state, yet several important biological processes transiently involve single-stranded regions. DNA, which consists of a polysugar-phosphate backbone possessing projections of purines (adenine and guanine) and pyrimidines (thymine and cytosine), forms a double helix that is held together by hydrogen bonds between these purines and pyrimidines (adenine to thymine and guanine to cytosine). DNA, Double-Stranded,Deoxyribonucleic Acid,ds-DNA,DNA, Double Stranded,Double-Stranded DNA,ds DNA
D005260 Female Females
D005272 Femur Neck The constricted portion of the thigh bone between the femur head and the trochanters. Femoral Neck,Neck, Femoral,Neck, Femur

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