RESUMEN
Risk factors for premature coronary heart disease in China can be multiple; we investigated Chinese Han patients with premature coronary heart disease and a possible association with CD36 polymorphism at rs1049673, rs7755, and rs321159 sites. Outpatients were recruited according to chest X-ray coronary arteriography results; they were divided into two groups: early coronary artery lesions (premature coronary heart disease group, test group) and a control group. Coronary arteriography and laboratory blood examinations were conducted to analyze risk factors for coronary heart disease and CD36 polymorphisms. Seventy nine test and 56 control group patients were recruited. Compared with the control, the test groups had a significantly higher proportion of male patients, smoking, diabetes and metabolic syndromes, significantly higher levels of TG, LDL-C, ox-LDL, WBC, UA, FBG, and significantly lower levels of HDL-C. For rs1049673, rs7755, and rs321159 sites, patients with premature coronary heart disease have family genetic predisposition at high LDL-C level with GA, AA, and TT genotypes. Unconditional logistic regression analysis showed that gender, diabetes, high TG, LDL-C level and C carriers of rs1049673 significantly affected risk for premature coronary heart disease.
Asunto(s)
Antígenos CD36/genética , Enfermedad Coronaria/genética , Polimorfismo Genético , Anciano , China , Angiografía Coronaria , Enfermedad Coronaria/etnología , Femenino , Humanos , Masculino , Persona de Mediana EdadRESUMEN
Seed length and seed width are an important factor to the soybean yield. So the quantitative trait loci (QTL) location for seed length and seed width could assistant the breeding of soybean. In this study, the QTL underlying seed length and seed width were studied. A recombinant inbred line population of soybeans derived from a cross between the American semi-draft cultivars Charleston and Dongnong 594 were used in 7 environments. The quantitative trait loci underlying seed length, seed width, and seed length/seed width were analyzed by the method of composite interval mapping. Then, the epistatic effects and the QTL-environment (QE) interaction effects were also analyzed. Some valuable QTL sites found had great effect to the seed trait. Results showed that 7 QTLs underlying seed length were identified mainly on linkage groups D1a, C2, B1, A1, G, and A2. For the seed width, 7 QTLs were identified on linkage groups D1a and O. Two QTLs of seed length/seed width were identified on linkage groups D1b and C2. No QE interaction was found for QTLs of seed length and seed width in 7 environments. QTLs of seed length/seed width on linkage groups A1 and I had a QE interaction in 7 environments. Seven pairs of QTLs were identified that affected additive x additive epistatic effect of seed length, seed width, and seed length/seed width, which occurred among 8 linkage groups. These results supply a good foundation for molecular assistant breeding for soybean seed trait.