INTRODUCTIONIn order to study the relationship between oncogeneexpression and HCC generation,we observed theprecancerous hepatic GGT loci,IGF-Ⅱ,p53 andp21 expression during hepatocarcinogenesis of treeshrew induced b...INTRODUCTIONIn order to study the relationship between oncogeneexpression and HCC generation,we observed theprecancerous hepatic GGT loci,IGF-Ⅱ,p53 andp21 expression during hepatocarcinogenesis of treeshrew induced by hepatitis B virus (HBV) and/oraflatoxin B1 (AFB1).展开更多
研究者进行了一项荟萃分析,包括剂量反应分析,以定量确定油炸食品摄入与普通成年人群心血管病风险和全因死亡率之间的关系。方法:研究者在PubMed、EMBASE和Web of Science上检索2020年4月11日之前的所有文章。应用随机效应模型估计总的...研究者进行了一项荟萃分析,包括剂量反应分析,以定量确定油炸食品摄入与普通成年人群心血管病风险和全因死亡率之间的关系。方法:研究者在PubMed、EMBASE和Web of Science上检索2020年4月11日之前的所有文章。应用随机效应模型估计总的相对危险度(relative risks,RR)和95%CI。结果:与最低油炸食品摄入量相比,最高摄入量者主要心血管事件的总RR(95%CI)=1.28(1.15~1.43),n=17,I^(2)=82.0%,其中前瞻性研究:1.24(1.12~1.38),n=13,I^(2)=75.7%.展开更多
Li Y, Hu S, Zuo Z, et al. CD5-positive follicular lymphoma： clinicopathologic correlations and outcome in 88 cases. Mod Pathol, 2015,28 （6） ：787-98.滤泡性淋巴瘤是一种生发中心B细胞起源的低级别B细胞淋巴瘤，典型者缺...Li Y, Hu S, Zuo Z, et al. CD5-positive follicular lymphoma： clinicopathologic correlations and outcome in 88 cases. Mod Pathol, 2015,28 （6） ：787-98.滤泡性淋巴瘤是一种生发中心B细胞起源的低级别B细胞淋巴瘤，典型者缺乏CD5的表达。作者描述88例CD5＋的滤泡性淋巴瘤的临床病理学特征（男性53例，女性35例；中位年龄60岁；范围31-86岁）。66例淋巴结和22例结外部位最初诊断为滤泡性淋巴瘤。展开更多
虽然超重和肥胖的全球发病率逐日上升,但在不同地区、国家和性别中的发病趋势仍存在差异。据世界卫生组织报道,全球多个地区由体质量指数（body mass index,BMI）≥25kg/m2定义的超重/肥胖发生率几乎接近一半人口,有的甚至超过了一半,...虽然超重和肥胖的全球发病率逐日上升,但在不同地区、国家和性别中的发病趋势仍存在差异。据世界卫生组织报道,全球多个地区由体质量指数（body mass index,BMI）≥25kg/m2定义的超重/肥胖发生率几乎接近一半人口,有的甚至超过了一半,如美洲（61.1%）,欧洲（54.8%）和东地中海地区（46.0%）,然而,在非洲（26.9%）,东南亚（13.7%）和西太平洋地区（25．4％），超重／肥胖发生率较低。展开更多
Based on an extensive experimental program,the paper studies the behavior of HPFRCC under triaxial compression. The experimental parameters are lateral confining pressure and PVA fiber content by volume. The test resu...Based on an extensive experimental program,the paper studies the behavior of HPFRCC under triaxial compression. The experimental parameters are lateral confining pressure and PVA fiber content by volume. The test results indicate that ultimate strength and peak strain are significantly improved with the increases of confining pressure. The confining effect introduced by the fibers becomes minor in triaxial compression tests,where there is relatively high external confining pressure. The axial stress-strain curves with different confining pressure and different PVA fiber content by volume are obtained. Lateral confining pressure constraints the lateral expansion of HPFRCC,so there is a big plastic deformation with its ultimate strength improved. At lower confining pressure,PVA fiber content by volume has some effect on the decreased section of stress-strain curve. According to test results,the paper establishes formula of confining pressure with ultimate strength and axial peak strain respectively.展开更多
Background Vascular endothelial growth factor （VEGF） is a major mediator of angiogenesis,and plays a key role in the pathogenesis of diabetic retinopathy （DR）.This study was designed to identify the possible role ...Background Vascular endothelial growth factor （VEGF） is a major mediator of angiogenesis,and plays a key role in the pathogenesis of diabetic retinopathy （DR）.This study was designed to identify the possible role of VEGF gene polymorphisms in the development of DR in type 2 diabetic patients in Chinese and clarify the relationship between VEGF serum levels and the risk of DR.Methods This cross-sectional study included 1 040 Chinese subjects with type 2 diabetes mellitus.There were 372 patients diagnosed with DR in the case group and 668 patients without DR in the control group.DNA from each patient was analyzed for VEGF polymorphisms of-2578A/C （rs699947）,-1154G/A （rs1570360）,-460C/T （rs833061）,＋405C/G （rs2010963）,and ＋936C/T （rs3025039） using MassARRAY compact analyzer.The VEGF serum levels were quantified by enzyme-linked immunosorbent assay （ELISA）.Results No evidence of association was observed between-2578 A/C （rs699947）,＋405C/G （rs2010963）,＋936C/T （rs3025039）,and DR risk under stringent Bonferroni＆#39;s correction.However,VEGF serum levels were significantly higher in DR patients than those of control group.The genetic variation of VEGF polymorphisms influenced VEGF serum levels; subjects carrying the VEGF-2578 C/C （rs699947） genotype had greater VEGF serum levels than those carrying the C/A genotype and VEGF serum levels were significantly higher in CC genotype of the ＋405C/G （rs2010963） compared with those of the other genotypes.Conclusions The data did not suggest significant association between the VEGF polymorphisms and DR risk under stringent Bonferroni＆#39;s correction.However,our study indicated that DR patients have higher VEGF levels than diabetic patients without retinopathy,and-2578A/C （rs699947） and ＋405C/G （rs2010963） may be important factors in determining serum VEGF levels.展开更多
基金the National Natural Science Foundation of China,No.39260033.
文摘INTRODUCTIONIn order to study the relationship between oncogeneexpression and HCC generation,we observed theprecancerous hepatic GGT loci,IGF-Ⅱ,p53 andp21 expression during hepatocarcinogenesis of treeshrew induced by hepatitis B virus (HBV) and/oraflatoxin B1 (AFB1).
文摘研究者进行了一项荟萃分析,包括剂量反应分析,以定量确定油炸食品摄入与普通成年人群心血管病风险和全因死亡率之间的关系。方法:研究者在PubMed、EMBASE和Web of Science上检索2020年4月11日之前的所有文章。应用随机效应模型估计总的相对危险度(relative risks,RR)和95%CI。结果:与最低油炸食品摄入量相比,最高摄入量者主要心血管事件的总RR(95%CI)=1.28(1.15~1.43),n=17,I^(2)=82.0%,其中前瞻性研究:1.24(1.12~1.38),n=13,I^(2)=75.7%.
文摘Li Y, Hu S, Zuo Z, et al. CD5-positive follicular lymphoma： clinicopathologic correlations and outcome in 88 cases. Mod Pathol, 2015,28 （6） ：787-98.滤泡性淋巴瘤是一种生发中心B细胞起源的低级别B细胞淋巴瘤，典型者缺乏CD5的表达。作者描述88例CD5＋的滤泡性淋巴瘤的临床病理学特征（男性53例，女性35例；中位年龄60岁；范围31-86岁）。66例淋巴结和22例结外部位最初诊断为滤泡性淋巴瘤。
文摘虽然超重和肥胖的全球发病率逐日上升,但在不同地区、国家和性别中的发病趋势仍存在差异。据世界卫生组织报道,全球多个地区由体质量指数（body mass index,BMI）≥25kg/m2定义的超重/肥胖发生率几乎接近一半人口,有的甚至超过了一半,如美洲（61.1%）,欧洲（54.8%）和东地中海地区（46.0%）,然而,在非洲（26.9%）,东南亚（13.7%）和西太平洋地区（25．4％），超重／肥胖发生率较低。
基金support from the youth science fund project of China (50908187)Henan provincial natural science research project ( 2010B560006 )Shanxi provinces youth fund project(2009JQ7013)
文摘Based on an extensive experimental program,the paper studies the behavior of HPFRCC under triaxial compression. The experimental parameters are lateral confining pressure and PVA fiber content by volume. The test results indicate that ultimate strength and peak strain are significantly improved with the increases of confining pressure. The confining effect introduced by the fibers becomes minor in triaxial compression tests,where there is relatively high external confining pressure. The axial stress-strain curves with different confining pressure and different PVA fiber content by volume are obtained. Lateral confining pressure constraints the lateral expansion of HPFRCC,so there is a big plastic deformation with its ultimate strength improved. At lower confining pressure,PVA fiber content by volume has some effect on the decreased section of stress-strain curve. According to test results,the paper establishes formula of confining pressure with ultimate strength and axial peak strain respectively.
文摘Background Vascular endothelial growth factor （VEGF） is a major mediator of angiogenesis,and plays a key role in the pathogenesis of diabetic retinopathy （DR）.This study was designed to identify the possible role of VEGF gene polymorphisms in the development of DR in type 2 diabetic patients in Chinese and clarify the relationship between VEGF serum levels and the risk of DR.Methods This cross-sectional study included 1 040 Chinese subjects with type 2 diabetes mellitus.There were 372 patients diagnosed with DR in the case group and 668 patients without DR in the control group.DNA from each patient was analyzed for VEGF polymorphisms of-2578A/C （rs699947）,-1154G/A （rs1570360）,-460C/T （rs833061）,＋405C/G （rs2010963）,and ＋936C/T （rs3025039） using MassARRAY compact analyzer.The VEGF serum levels were quantified by enzyme-linked immunosorbent assay （ELISA）.Results No evidence of association was observed between-2578 A/C （rs699947）,＋405C/G （rs2010963）,＋936C/T （rs3025039）,and DR risk under stringent Bonferroni＆#39;s correction.However,VEGF serum levels were significantly higher in DR patients than those of control group.The genetic variation of VEGF polymorphisms influenced VEGF serum levels; subjects carrying the VEGF-2578 C/C （rs699947） genotype had greater VEGF serum levels than those carrying the C/A genotype and VEGF serum levels were significantly higher in CC genotype of the ＋405C/G （rs2010963） compared with those of the other genotypes.Conclusions The data did not suggest significant association between the VEGF polymorphisms and DR risk under stringent Bonferroni＆#39;s correction.However,our study indicated that DR patients have higher VEGF levels than diabetic patients without retinopathy,and-2578A/C （rs699947） and ＋405C/G （rs2010963） may be important factors in determining serum VEGF levels.
