Research Article

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Association analysis; Bone mineral density; Osteoporosis; Osteoprotegerin gene; Postmenopausal women; Single nucleotide polymorphisms

Osteoporosis is an important and common complex health problem, particularly in postmenopausal women. It is characterized by a reduction in bone mineral density (BMD) and a deterioration of bone microarchitecture with a consequent increase of fracture risk. The osteoprotegerin (OPG) gene is considered to play an important role in the pathogenesis of osteoporosis. We analyzed SNPs ... more

J.F. Song; Z.Z. Jing; W. Hu; Y.X. Su
Bone mineral density; Osteoporosis; Postmenopausal women; VDR polymorphisms

We investigated associations between vitamin D receptor (VDR) gene polymorphisms, FokI T>C (rs2228570), BsmI G>A (rs1544410), ApaI G>T (rs7975232), and TaqI T>C (rs731236), with bone mineral density (BMD) in postmenopausal Mexican-Mestizo women. Three hundred and twenty postmenopausal women participated, who were classified ... more

A. González-Mercado; J.Y. Sánchez-López; J.A. Regla-Nava; J.I. Gámez-Nava; L. González-López; J. Duran-Gonzalez; A. Celis; F.J. Perea-Díaz; M. Salazar-Páramo; B. Ibarra
Bone mineral density; Genetic variants; Osteoporosis; Osteoprotegerin gene

The purpose of this study was to investigate the association of the g.27667T>A genetic variant in the osteoprotegerin (OPG) gene with bone mineral density (BMD) and osteoporosis. A total of 393 primary osteoporosis subjects and 402 healthy controls were recruited. The BMD of the femoral neck hip, lumbar spine (L2-4), and total hip were evaluated by Norland XR-46 dual-energy ... more

J.J. Zhao; D.H. Feng; L. Cheng; T. Lu; L. Wang
Bone mineral density; Chinese women; Genetic polymorphism; Osteoporosis; Osteoprotegerin gene; Risk factor

Osteoporosis is a common multifactorial disease in postmenopausal women. This study aimed to investigate the association of the g.27563G>A osteoprotegerin (OPG) genetic polymorphism with bone mineral density (BMD) and osteoporosis. A case-control study was carried out with 435 osteoporosis postmenopausal women cases and 442 age-matched healthy controls. The BMD at the femoral ... more

Y.P. Liu; D.W. Zhao; W.M. Wang; B.J. Wang; Y. Zhang; Z.G. Li
Fertility; Genetic association; Hatchability; Heritability; White leghorn

Studies estimating genetic parameters for reproductive traits in chickens can be useful for understanding and improvement of their genetic architecture. A total of 1276 observations of fertility (FERT), hatchability of fertile eggs (HFE) and hatchability of total eggs (HTE) were used to estimate the genetic and phenotypic parameters of 467 females from an F2 population generated by ... more

R.P. Savegnago; M.E. Buzanskas; B.N. Nunes; S.B. Ramos; M.C. Ledur; K. Nones; D.P. Munari
CCND1 gene; Esophageal cancer; Genetic association; Meta-analysis; Polymorphism

The association between the Cyclin D1 gene (CCND1) G870A polymorphism and esophageal cancer has been widely evaluated, with conflicting results. As meta-analysis is a reliable approach to resolving discrepancies, we aimed to evaluate this association. Data were available from 9 study populations incorporating 1898 cases and 3046 controls. Overall, the allelic/genotypic ... more

W. Cai; Z.T. Wang; J. Zhong; Y. Zhang
Genetic association; Genetic polymorphism; Holstein cows; Molecular markers

The bovine prolactin (PRL) and bovine growth hormone (bGH) genes exhibit several polymorphisms. Some of them can be detected by molecular techniques using restriction endonucleases, such as RsaI for the PRL gene and MspI for the bGH gene. We examined the relationship between the PRL-RsaI and bGH-MspI polymorphisms and ... more

J.C. Rincón; A. López-Herrera; J.J. Echeverri
Cloning; Litopenaeus vannamei; Ryanodine receptor; Single-nucleotide polymorphism

Ryanodine receptor/calcium release channel is a large protein that plays an essential role in muscle contraction; mutations in the ryanodine receptor gene affect sensitivity to stress. As a first step towards investigating the relationship between the ryanodine receptor and shrimp cramped muscle syndrome, we cloned, partially sequenced, and examined single-nucleotide polymorphisms (SNPs) ... more

X.H. Chen; D.G. Zeng; N. Ma
Chinese Han population; Rheumatoid arthritis; Single-nucleotide polymorphism; Suppressor of cytokine signaling-3 (SOCS-3)

Suppressor of cytokine signaling (SOCS)-3 is a key negative regulator of cytokine signaling that inhibits the JAK/STAT signal transduction pathway; there are reports describing its role in attenuating arthritis through SOCS-3 overexpression. We examined the relationship between polymorphisms in the coding sequence and promoter region of SOCS-3 and rheumatoid arthritis (RA) in a ... more

L.P. Sun; X.L. Ma; H.X. Liu; Y.S. Wang; X.F. Li
BMD; CYP17; CYP19; Estradiol; Osteoporosis; Polymorphism

Many clinical conditions, including osteoporosis, are associated with serum levels of sex steroids. Enzymes that regulate rate-limiting steps of steroidogenic pathways, such as CYP17 and CYP19, are also regarded as significant factors that may cause the development of these conditions. We investigated the association of two common polymorphisms, in the promoter region (T→C substitution) ... more

M.B. Yilmaz; A. Pazarbasi; A.I. Guzel; S. Kocaturk-Sel; H. Kasap; M. Kasap; I.F. Urunsak; S. Basaran; D. Alptekin; O. Demirhan