健康生吃的55个法则

夏天临近，各种新鲜的蔬菜和水果将会源源不断地上市，让生吃的元素一下子丰富起来。北方人喜欢生吃大葱、黄瓜，南方人喜欢吃生猛海鲜，各地有各地的生吃爱好。那么，我们应该怎样健康地生吃呢？[编者按]     

精氨酸与谷氨酰胺对进展期胃癌患者免疫功能及肿瘤细胞增殖活性的影响

目的 :研究联合应用精氨酸 (Arg)与谷氨酰胺 (Gln)对胃癌病人免疫功能和肿瘤细胞增殖动力学的作用。方法 :胃癌 5 8例 (男 4 2例 ,女 16例 )平均年龄 5 6.3± 11.4岁。术前每天静脉输注Arg 2 5 g、分 3次口服单体Gln粉剂 3 0g ,连续 7d。分别在用药前、后 (手术日晨 )检测细胞免疫指标CD3、CD4、CD8、CD4 CD8、NK细胞活性和体液免疫指标IgG、IgA、IgM、C3、C4 ,并用免疫组化法检测用药前胃镜活检标本和用药后手术切除标本的瘤增殖细胞核抗原 (PCNA)表达及细胞凋亡的变化。结果 :用药后CD3、CD4百分比明显提高 ,CD8百分比明显降低 ,CD4 CD8比值和NK细胞活性均明显提高 (P <0 .0 5 ) ;体液免疫指标无明显变化 (P >0 .0 5 ) ;瘤组织PCNA表达明显降低 ,而细胞凋亡明显增加 (P <0 .0 5 )。结论 :药理剂量精氨酸与谷氨酰胺联合应用能明显改善胃癌病人细胞免疫功能、抑制瘤组织PCNA表达并促进瘤细胞凋亡 ,但对体液免疫指标无显著影响。     

JAK2/STAT3信号通路介导灯盏花乙素抗人心脏微血管内皮细胞缺氧-复氧损伤

Objective: To investigate the antagonistic cell injury effect and molecular mechanism of scutellarin(SCU)in hypoxia reoxygenation(HR) treated human cardiac microvascular endothelial cells(HCMECs).Methods: The method of 12 h hypoxia following by 12 h reoxygenation was used to culture HCMECs in vitro to built cell injury model. The groups were divided into control group, model(HR) group, and HR + SCU(0.1 μmol/L, 1 μmol/L, and 10 μmol/L) group. The cell viability was determined by MTT, and oxidative stress was detected by malondialdehyde(MDA) levels by biochemical assay kit. Protein expression of JAK2/p-JAK2 and STAT3/p-STAT3 were evaluated by Western blot.Results: The results of MTT and MDA showed that HR decreased the cell viability(P 0.05) and increased MDA level significantly(P 0.05), SCU played a contrary role in these processes. Western blot analysis indicates that, the expression of JAK2 and p-JAK2, STAT3, and p-STAT3 were increased in model group when compared with control group(P 0.05); Compared with model group, their expression were reduced by SCU(P 0.05).Conclusion: SCU took a protective effect on HR-treated HCMECs, and the molecular mechanism may be associated with the inhibition of JAK2/STAT3 signal transduction pathway.     

美国汤姆森-路透科技 《期刊引证报告(2007)》 (JCR,中国部分)

美国汤姆森-路透科技信息集团2008-06-18 公布的《期刊引证报告(2007)》共列出全世界期刊 6417 种。 目前查询到 95 种中国(含大陆 75、台湾 18、香港 2)期刊的数据。2006~2008年被SCIE新收录的期刊,按照惯例,未被统计。有关新近收录期刊信息,请见： 任秀芳,张月红. 全球700种区域性优秀期刊新入选 Web of Science. 中国科技期刊研究,2008,19(4):725-727