Sex differences in stroke

Sex differences in stroke are observed across epidemiologic studies, pathophysiology, treatments, and outcomes. These sex differences have profound implications for effective prevention and treatment and are the focus of this review. Epidemiologic studies reveal a clear age-by-sex interaction in stroke prevalence, incidence, and mortality. While premenopausal women experience fewer strokes than men of comparable age, stroke rates increase among postmenopausal women compared with age-matched men. This postmenopausal phenomenon, in combination with living longer, are reasons for women being older at stroke onset and suffering more severe strokes. Thus, a primary focus of stroke prevention has been based on sex steroid hormone-dependent mechanisms. Sex hormones affect different (patho)physiologic functions of the cerebral circulation. Clarifying the impact of sex hormones on cerebral vasculature using suitable animal models is essential to elucidate male–female differences in stroke pathophysiology and development of sex-specific treatments. Much remains to be learned about sex differences in stroke as anatomic and genetic factors may also contribute, revealing its multifactorial nature. In addition, the aftermath of stroke appears to be more adverse in women than in men, again based on older age at stroke onset, longer prehospital delays, and potentially, differences in treatment.     

新生儿危重病例评分和第三代小儿死亡危险评分预测危重新生儿死亡风险比较

目的 比较第三代小儿死亡危险评分(pediatric risk of mortality III score, PRISM III)和新生儿危重病例评分(neonatal critical illness score, NCIS)在预测危重新生儿死亡风险方面的优越性, 探讨更适合我国NICU应用的评分系统。方法 对2013年1-6月入住新疆石河子大学第一附属医院新生儿重症监护室(neonatal intensive care unit, NICU)的135例患儿同时采用NCIS和PRISM III两种评分系统进行评分, 根据评分将入组病例分为极危重、危重、非危重3组, 分别对各组病死率进行比较, 并描绘受试者工作特征曲线(receiver operating characteristic curve, ROC), 比较ROC曲线下面积(area under the ROC curve, AUC), 以观察两种评分系统在预测危重新生儿死亡风险的优越性。结果 NCIS评分与PRISM III评分非危重组、危重组与极危重组组间病死率比较, 差异均有统计学意义(P＜0.05);两种评分对应组组间比较, 差异均无统计学意义(P＞0.05);AUC:NCIS评分0.900, PRISM III评分0.909。结论 NCIS评分与PRISM III评分均能准确预测新生儿死亡风险, PRISM III评分在我国完全适用。     

Alcohol consumption and NHMRC guidelines: has the message got out,are people conforming and are they aware that alcohol causes cancer?

Objective: To examine self‐reported alcohol consumption and relationships between consumption, awareness of the 2009 NHMRC guidelines of no more than two standard drinks per day, drinking in excess of the guideline threshold and perceptions of alcohol as a risk factor for cancer. Methods: Questions were included in annual, cross‐sectional surveys of approximately 2,700 South Australians aged 18 years and over from 2004 to 2012. Consumption data for 2011 and 2012 were merged for the majority of analyses. Results: In 2011 and 2012, 21.6% of adults drank in excess of the guideline threshold (33.0% males; 10.7% females). While 53.5% correctly identified the NHMRC consumption threshold for women, only 20.3% did so for men (39.0% nominated a higher amount). A large minority said they did not know the consumption threshold for women (39.2%) or men (40.4%). In 2012, only 36.6% saw alcohol as an important risk factor for cancer. Important predictors of excess consumption for men were: higher household income; and not perceiving alcohol as an important risk factor for cancer. Predictors for women were similar but the role of household income was even more prominent. Conclusions: Men were nearly three times as likely to drink in excess of the guidelines as women. The majority of the population did not see an important link between alcohol and cancer. Awareness of the latest NHMRC guidelines consumption threshold is still low, particularly for men. Implications: A strategy to raise awareness of the NHMRC guidelines and the link between alcohol and cancer is warranted.     

药厂生产环境的监测及风险评估

生产环境是保证药品质量的关键环节之一,主要阐述了如何设计药厂生产环境的监测系统,以及如何运用风险评估理论,量化和处理生产环境的关键要素,从而提高和保证药品的生产质量。     

婴儿呼吸道合胞病毒急性下呼吸道感染的相关因素分析

目的：探究影响婴儿呼吸道合胞病毒急性下呼吸道感染的相关因素。方法选取2013年7月至2014年7月于浙江省金华市浦江县人民医院住院的急性下呼吸道感染（ ALRI）患儿1540例，根据浙江省金华市浦江县人民医院呼吸道合胞病毒（RSV）检测结果，将患儿分为RSV阳性组（n＝816）和RSV阴性组（n＝724）两组，对比两组患者的性别、年龄、出生体重、胎龄、发病季节、合并基础疾病、合并先心病、居住人口、家庭月收入、母乳喂养、家庭吸烟、妊娠合并糖尿病、妊娠合并高血压、孕母特应性疾病等。结果多因素分析发现，秋冬季节发病（OR＝1．579，95％CI＝1．172～2．127）、合并先心病（OR＝1．317，95％CI＝1．028～1．685）、孕母特应性疾病（OR＝1．802，95％CI＝1．235～2．631）是婴儿RSV相关ALRI的危险因素，而家庭月收入≥10千元（OR＝0．679，95％CI＝0．499～0．924）是其保护因素。结论秋冬季节发病、合并先心病、孕母特应性疾病的婴儿RSV相关ALRI发病率高，而家庭月收入≥10千元的家庭RSV相关ALRI发病率低。