为了探究KAP1.1基因(keratin-associated protein 1-1)潜在的生物学功能,利用分子生物学软件对绵羊KAP1.1基因编码蛋白进行了生物信息学分析。结果表明,该基因共编码182个氨基酸,为一可溶性不稳定蛋白。分子量为18788.45 u,等电点为6.0...为了探究KAP1.1基因(keratin-associated protein 1-1)潜在的生物学功能,利用分子生物学软件对绵羊KAP1.1基因编码蛋白进行了生物信息学分析。结果表明,该基因共编码182个氨基酸,为一可溶性不稳定蛋白。分子量为18788.45 u,等电点为6.03。另预测得知该蛋白含有6个磷酸化位点,无糖基化位点,不含有跨膜区和信号肽,推测其不是一个分泌型蛋白。亚细胞定位绵羊KAP1.1蛋白主要在线粒体和细胞核中发挥生物学功能,二级、三级结构显示,无规则卷曲是构成该蛋白的主要结构元件。物种间同源性分析显示,绵羊KAP1.1蛋白氨基酸组成与牛的相似度最高(85.9%)。展开更多
Objective To evaluate the association between diabetic retinopathy(DR) and mean ocular perfusion pressure(MOPP) in patients with type 2 diabetes mellitus(T2 DM).Methods Patients from the Fushun Diabetic Retinopathy Co...Objective To evaluate the association between diabetic retinopathy(DR) and mean ocular perfusion pressure(MOPP) in patients with type 2 diabetes mellitus(T2 DM).Methods Patients from the Fushun Diabetic Retinopathy Cohort Study(FS-DIRECT), a communitybased prospective cohort study conducted in northeast China, were included in this study. The presence and severity of DR were determined by grading fundus photographs according to the Early Treatment Diabetic Retinopathy Study(ETDRS) retinopathy scale. Systolic and diastolic blood pressure(SBP and DBP) were recorded using an electronic sphygmomanometer. Intraocular pressure(IOP) was measured using an iCare rebound tonometer. MOPP was calculated using the formula MOPP = 2/3 [DBP + 1/3(SBP-DBP)]-IOP.Results In total, 1,857 patients who had gradable fundus photography and MOPP data were enrolled in this study. Male patients had a higher MOPP than female patients(52.25 ± 8.75 vs. 50.96 ± 8.74 mmHg, P = 0.002). Overall, both male and female patients with any type of DR, non-proliferative DR(NPDR), or non-sight-threatening DR(non-STDR) had significantly higher MOPP relative to patients without DR. Increased MOPP(per 1 mmHg) was in turn associated with the presence of any type of DR[odds ratio(OR) = 1.03, 95% confidence interval(CI) : 1.02–1.04], NPDR(OR = 1.03 95% CI: 1.02–1.04),and non-STDR(OR = 1.03, 95% CI: 1.01–1.04) after adjusting for confounders. Increased MOPP(per 1 mmHg) was also associated with an increased likelihood of macular edema(OR = 1.02, 95% CI:1.01–1.04).Conclusions The results suggest that increased MOPP was associated with DR and macular edema in northeastern Chinese patients with T2 DM.展开更多
文摘为了探究KAP1.1基因(keratin-associated protein 1-1)潜在的生物学功能,利用分子生物学软件对绵羊KAP1.1基因编码蛋白进行了生物信息学分析。结果表明,该基因共编码182个氨基酸,为一可溶性不稳定蛋白。分子量为18788.45 u,等电点为6.03。另预测得知该蛋白含有6个磷酸化位点,无糖基化位点,不含有跨膜区和信号肽,推测其不是一个分泌型蛋白。亚细胞定位绵羊KAP1.1蛋白主要在线粒体和细胞核中发挥生物学功能,二级、三级结构显示,无规则卷曲是构成该蛋白的主要结构元件。物种间同源性分析显示,绵羊KAP1.1蛋白氨基酸组成与牛的相似度最高(85.9%)。
基金The study was supported by the Liaoning Provincial Natural Science Foundation of China[20170540328]Zhejiang Provincial Natural Science Foundation of China[LQ18H120004]Wenzhou Basic Scientific Research Project[Y20190632].
文摘Objective To evaluate the association between diabetic retinopathy(DR) and mean ocular perfusion pressure(MOPP) in patients with type 2 diabetes mellitus(T2 DM).Methods Patients from the Fushun Diabetic Retinopathy Cohort Study(FS-DIRECT), a communitybased prospective cohort study conducted in northeast China, were included in this study. The presence and severity of DR were determined by grading fundus photographs according to the Early Treatment Diabetic Retinopathy Study(ETDRS) retinopathy scale. Systolic and diastolic blood pressure(SBP and DBP) were recorded using an electronic sphygmomanometer. Intraocular pressure(IOP) was measured using an iCare rebound tonometer. MOPP was calculated using the formula MOPP = 2/3 [DBP + 1/3(SBP-DBP)]-IOP.Results In total, 1,857 patients who had gradable fundus photography and MOPP data were enrolled in this study. Male patients had a higher MOPP than female patients(52.25 ± 8.75 vs. 50.96 ± 8.74 mmHg, P = 0.002). Overall, both male and female patients with any type of DR, non-proliferative DR(NPDR), or non-sight-threatening DR(non-STDR) had significantly higher MOPP relative to patients without DR. Increased MOPP(per 1 mmHg) was in turn associated with the presence of any type of DR[odds ratio(OR) = 1.03, 95% confidence interval(CI) : 1.02–1.04], NPDR(OR = 1.03 95% CI: 1.02–1.04),and non-STDR(OR = 1.03, 95% CI: 1.01–1.04) after adjusting for confounders. Increased MOPP(per 1 mmHg) was also associated with an increased likelihood of macular edema(OR = 1.02, 95% CI:1.01–1.04).Conclusions The results suggest that increased MOPP was associated with DR and macular edema in northeastern Chinese patients with T2 DM.
