Characteristics of the Bibliometric Indexes of Chinese Core Journals on Environmental and Occupational Medicine

This paper investigated the current characteristics and changing trends of major journals on Chinese environmental and occupational medicine in order to promote the development of these journals. This study focused on the seven core journals in the area of environmental and occupational medicine listed on the Chinese Scientific and Technical Journal Citation Reports (2008 version). These journals were China Occupational Medicine, Chinese Journal of Industrial Hygiene and Occupational Diseases, Chinese Journal of Industrial Medicine, Industrial Health and Occupational Diseases, Journal of Environment and Health, Journal of Environmental and Occupational Medicine, Occupation and Health. Various observations were based on data from www. cnki.net and Chinese Scientific and Technical Journal Citation Reports (2008 version), including cover of the journal, issue period, exposure to the internet, level of open source, impact factor, cited half-life, web immediacy index and rate of downloads per year. The outcomes showed that in appearance, the overall characteristics were continuous improvement of the covers, issue period, and moving toward the internet. In terms of contents, all factors had been improving.Nevertheless the level of influence was not very stable. The use of internet and the level of resource openness still have a long way to go to meet the international standard. There is still a huge gap for improvement. The contents and the appearance both need to be improved to serve the ever developing environmental and occupational medicine career.     

三氯乙烯生物标志物的研究进展

三氯乙烯(trichloroethylene,TCE)是一种挥发性有机溶剂,主要在其制造、使用和弃置过程中释放入人类环境。在空气、水、土壤、食物和动物脏器中都有检出,人群接触量最大的为金属清洗工人,多为呼吸道吸入。检测表明目前93%通过地下水供水的公众饮水系统和9%~34%饮水用水源头均已     

三羟基异黄酮对日本比目鱼(牙鲆)性腺分化的影响

[目的] 研究5,7,4’-三羟基异黄酮(genistein,GEN)对日本比目鱼(牙鲆)生殖腺性分化的作用,并在基因表达上探索其分子机制。[方法]运用日本比目鱼随饲养水温决定其性别的生物学特性,在鱼卵孵化后第30天到第100天性分化敏感期内,在27 ℃水温下饲养,会使幼鱼分化成雄性。同时,分别给予幼鱼投食GEN 10和100 μg/g饲料进行喂养染毒,直到第100天(青年期)和第300天(成年期),分别对各组比目鱼样本做病理组织切片,判断其性别和雌雄比例,并通过原位杂交和RT-PCR分析,探索它们的作用机制。[结果] GEN对27 ℃水温饲养下的比目鱼幼鱼有雌性化诱导作用,两组成年比目鱼雌性分别有不同的百分比:10 μg/g组为46.7%,100 μg/g组为96.7%,其诱导效应呈现一定剂量依赖性;比目鱼幼鱼出生后第100天时原位杂交实验显示,P450芳香化酶的mRNA在各组的雌鱼卵巢中有明显表达,但在雄鱼精巢中未见表达;而MIS(苗勒氏管抑制物质)的mRNA在各组的雌鱼卵巢中不表达,而在雄鱼精巢中能见到非常明显的表达。RT-PCR实验显示,在雌鱼卵巢中P450芳香化酶的mRNA表达被诱导,而MIS基因表达被抑制,进一步证实了原位杂交的结果。[结论] GEN对日本比目鱼的生殖腺性分化有雌性化诱导作用,其分子机制很可能是通过诱导P450芳香化酶基因表达和抑制MIS的基因表达从而发挥雌激素样干扰作用的。     

Associations of visit-to-visit fasting glucose with risk of mortality: A retrospective cohort study of 48,077 people with type 2 diabetes

AimTo investigate the association between mean fasting glucose (FG) and variability in visit-to-visit FG and risk of mortality in people with type 2 diabetes (T2D).MethodsThis retrospective cohort study included 48,077 Chinese men and women with T2D. The yearly mean and coefficient of variation for fasting glucose (mean-FG and FG-CV, respectively) were based on at least two measurements taken each year over a mean duration of 4.5 years. Deaths and their causes were identified using the Shanghai Vital Statistics registry. Mean-FG and FG-CV served as time-dependent variables in Cox models to estimate their associations with risk of mortality; hazard ratios (HRs) were adjusted for baseline risk factors. Potential non-linear associations were examined by restricted cubic splines.ResultsDuring an average 4.5 years of follow-up, 2095 men and 1923 women died. Men with low mean-FG and women with low or high FG were at greater risk of death. Mean-FG was not associated with either cardiovascular disease (CVD) or cancer-specific mortality, whereas higher yearly FG-CV was associated with all-cause and CVD-/cancer-specific mortality in both genders. Compared with a yearly FG-CV of 1.76 (5th percentile), men and women with an FG-CV of 14.14 (75th percentile) had HRs (95% CI) of 1.41 (1.24–1.61) and 1.44 (1.26–1.65), respectively, for all-cause mortality.ConclusionVariability of visit-to-visit FG may be a more sensitive predictor of risk of death than mean-FG in people with T2D.     

中文科技期刊英文编辑中“回译”应用——以《环境与职业医学》杂志为例

是国外科研人员了解中国科研成果最快捷的途径,英文摘要是否符合语法规范和准确传达原文信息直接影响文章的可读性和被引率。鉴于我国学术期刊英文摘要语言和编校质量较差的现状,本文探讨＂回译＂——一种在国际翻译实践中采用的方法,在中国科技期刊英文编辑中的应用,并通过《环境与职业医学》杂志编辑过程中的实例,分析回译的作用：查漏补缺,明确句子结构,提示表达差异,准确传达原文的信息,梳理中文表达。     

姜黄素潜在毒性作用的研究进展

姜黄素是源自植物姜黄的酚类物质，被广泛用作天然色素、调味剂、香料及防腐剂。一直以来，人们更多地关注姜黄素具有的多种生物活性的研究、开发和利用。然而有关其潜在的毒性作用及其机制的研究也不容忽视，本文就此方面的研究进展给予浅评。     

防晒化妆品抗水功效评价参数研究

[目的]分析体外法参数在抗水性防晒化妆品抗水能力评估中的应用。[方法]选取4个宣称具有抗水或防水功能的防晒化妆品和2个未宣称抗水或防水功能的防晒化妆品。分别测定入水前后的SPF值、λC值及R值(UVA/UVB),并记录入水前后的MPF吸收曲线。[结果]6种防晒化妆品样品入水前后的SPF值、λC值、R值及MPF曲线均有不同程度的变化。[结论]SPF值和R值相结合,可以简单推断样品入水前后防晒剂的变化情况,但要获得全面的信息,还需参考MPF曲线的变化情况。λC值在防晒化妆品抗水性评价中的应用有待进一步实验和分析。     

乡（镇）村卫生一体化管理下乡村医生报酬的优化设计

在分析乡村医生报酬对乡村医生队伍稳定与发展的影响以及乡（镇）村卫生一体化管理下乡村医生报酬水平和结构问题的基础上,阐述乡村医生报酬的优化设计,为完善乡（镇）村卫生一体化管理体制和运行机制提供决策支持。     

硫辛酸延缓衰老作用的研究进展

简要分析硫辛酸的一般理化及毒理学特点,并从改善老年机体的氧化状态和线粒体的氧化状态以及代谢酶活性两方面阐述了硫辛酸延缓衰老作用的研究进展。     

基于血清蛋白组学的慢性肾衰预测模型探讨

 目的 通过比较慢性肾衰（CRF）患者与正常人血清蛋白表达谱的差异,筛选血清蛋白标志物并建立诊断模型,探讨其在慢性肾衰血清学诊断中的意义。方法 收集62例CRF患者和28例正常人的血清,经表面增强激光解析离子化飞行时间质谱(SELDI-TOF-MS)检验并筛选血清蛋白标志物。经生物信息学分析建立预测模型并进行验证。结果 在质荷比(m/z)1500～30000范围内,检测到51个有效蛋白峰,发现有19个峰有显著差异 (P<0.001),其中18个峰呈低表达,1个峰呈高表达;且CRF组和正常组的聚类性质明显不同;组内样本彼此靠近,组间样本彼此分开。构建的"慢性肾衰组－正常组"诊断决策树模型,预测正确率为87.8%,灵敏度为87.1%,特异度为89.3%。结论 该决策树模型能对慢性肾衰做出较为准确的预测判断,为慢性肾衰的临床早期发现提供一定的实验依据