Background: Flight and cabin crew are known to be at increased risk for atherosclerotic cardiovascular disease (ASCVD). However, ASCVD risks have not yet been compared in flight and cabin crew in low resource settings...Background: Flight and cabin crew are known to be at increased risk for atherosclerotic cardiovascular disease (ASCVD). However, ASCVD risks have not yet been compared in flight and cabin crew in low resource settings like sub-Saharan Africa. Objectives: To assess absolute ASCVD risk estimate and its clinical correlates among flight and cabin crew. Methods: From June 1st 2015 to December 30th 2015, 379 consecutive aviation navigants (Flight crew: 62.5%, pilots: 46.2%, women: 29.6%, Caucasians 23.2%) were enrolled in a cross-sectional survey of ASCVD risk estimate using the Framingham tools. They underwent a physical examination for either initial or renewal medical certificate Class 1 or 2 including blood chemistry, ECG, and echocardiogram as per International Civil Aviation Organization (ICAO) and Civil Aviation Authority (CAA-DRC) medical regulations. We modeled the risk of moderate and high ASCVD estimate in a stepwise logistic regression. Results: Low, moderate and high ASCVD risk estimates were observed respectively in 248 (65.4%), 64 (16.9%), and 67 (17.7%) navigants. Moderate and high ASCVD risk estimates predominated among flight than cabin crew (23.6% vs. 5.6%;p 0.0001 and 28.3% vs. null;p 0.001), low ASCVD risk estimate among cabin than flight crew (94.4% vs. 48.1%;p ≤ 0.001). Low ASCVD risk?estimates.展开更多
This study looks into the influence of cosmic radiation at high altitudes on human bodies. Results reveal that the cytokinesis-block micronuclei (CBMN) and conventional cultured micronuclei in peripheral blood lymphoc...This study looks into the influence of cosmic radiation at high altitudes on human bodies. Results reveal that the cytokinesis-block micronuclei (CBMN) and conventional cultured micronuclei in peripheral blood lymphocytes, serum levels of lipid peroxide, superoxide dismutase, and the total antioxidation capacity by chemical colorimetry all increased significantly in aircrew members. There exists a linear relationship between the CBMN and the average annual effective doses of radiation received or the average annual flying hours. With both of them, a trend shows that the serum lipid peroxide levels increase as well. Either the lipid peroxide or CBMN can sensitively reflect the recent changes in flight load. These findings indicate that cosmic radiation impairs the stability of chromosomes and genome, and induces lipid oxidative damage in aircrews; Lymphocyte CBMN and serum lipid peroxide can be used as monitoring indicators in the cosmic radiation protection for aircrew members.展开更多
目的报道1例飞行人员无明确传染源感染布鲁氏菌病并复习相关文献,旨在提高对布鲁氏菌病的诊疗水平。方法回顾性分析1例无明确传染源的发热飞行人员感染布氏菌病的病历资料,综合相关数据库(中国知网、中华医学期刊数据库、Web of Science...目的报道1例飞行人员无明确传染源感染布鲁氏菌病并复习相关文献,旨在提高对布鲁氏菌病的诊疗水平。方法回顾性分析1例无明确传染源的发热飞行人员感染布氏菌病的病历资料,综合相关数据库(中国知网、中华医学期刊数据库、Web of Science及PubMed数据库)文献结果,总结飞行人员感染布氏杆菌情况。结果本例为41岁男性飞行人员,无明显诱因发热、出汗,测体温波动于37.6℃~39.6℃,近1个月出现午后发热,伴畏寒、乏力,经反复血培养,布鲁氏杆菌凝集试验阳性,虎红平板凝集试验(+)。给予治疗,地面观察期满,综合各专家意见,给予飞行合格结论。检索数据库共有3篇文献是关于飞行人员布氏菌病感染。结论对于此前罹患过布氏菌病的飞行人员应进行复查,单位要分离牲畜及厨余垃圾,从源头上减少飞行人员感染布鲁氏菌病的机会。展开更多
文摘Background: Flight and cabin crew are known to be at increased risk for atherosclerotic cardiovascular disease (ASCVD). However, ASCVD risks have not yet been compared in flight and cabin crew in low resource settings like sub-Saharan Africa. Objectives: To assess absolute ASCVD risk estimate and its clinical correlates among flight and cabin crew. Methods: From June 1st 2015 to December 30th 2015, 379 consecutive aviation navigants (Flight crew: 62.5%, pilots: 46.2%, women: 29.6%, Caucasians 23.2%) were enrolled in a cross-sectional survey of ASCVD risk estimate using the Framingham tools. They underwent a physical examination for either initial or renewal medical certificate Class 1 or 2 including blood chemistry, ECG, and echocardiogram as per International Civil Aviation Organization (ICAO) and Civil Aviation Authority (CAA-DRC) medical regulations. We modeled the risk of moderate and high ASCVD estimate in a stepwise logistic regression. Results: Low, moderate and high ASCVD risk estimates were observed respectively in 248 (65.4%), 64 (16.9%), and 67 (17.7%) navigants. Moderate and high ASCVD risk estimates predominated among flight than cabin crew (23.6% vs. 5.6%;p 0.0001 and 28.3% vs. null;p 0.001), low ASCVD risk estimate among cabin than flight crew (94.4% vs. 48.1%;p ≤ 0.001). Low ASCVD risk?estimates.
基金This work was supported by the Science Foundation of Civil Aviation Administration of China (Grant No. 99-3-3).
文摘This study looks into the influence of cosmic radiation at high altitudes on human bodies. Results reveal that the cytokinesis-block micronuclei (CBMN) and conventional cultured micronuclei in peripheral blood lymphocytes, serum levels of lipid peroxide, superoxide dismutase, and the total antioxidation capacity by chemical colorimetry all increased significantly in aircrew members. There exists a linear relationship between the CBMN and the average annual effective doses of radiation received or the average annual flying hours. With both of them, a trend shows that the serum lipid peroxide levels increase as well. Either the lipid peroxide or CBMN can sensitively reflect the recent changes in flight load. These findings indicate that cosmic radiation impairs the stability of chromosomes and genome, and induces lipid oxidative damage in aircrews; Lymphocyte CBMN and serum lipid peroxide can be used as monitoring indicators in the cosmic radiation protection for aircrew members.
文摘目的报道1例飞行人员无明确传染源感染布鲁氏菌病并复习相关文献,旨在提高对布鲁氏菌病的诊疗水平。方法回顾性分析1例无明确传染源的发热飞行人员感染布氏菌病的病历资料,综合相关数据库(中国知网、中华医学期刊数据库、Web of Science及PubMed数据库)文献结果,总结飞行人员感染布氏杆菌情况。结果本例为41岁男性飞行人员,无明显诱因发热、出汗,测体温波动于37.6℃~39.6℃,近1个月出现午后发热,伴畏寒、乏力,经反复血培养,布鲁氏杆菌凝集试验阳性,虎红平板凝集试验(+)。给予治疗,地面观察期满,综合各专家意见,给予飞行合格结论。检索数据库共有3篇文献是关于飞行人员布氏菌病感染。结论对于此前罹患过布氏菌病的飞行人员应进行复查,单位要分离牲畜及厨余垃圾,从源头上减少飞行人员感染布鲁氏菌病的机会。
文摘目的探讨体检数据与非酒精性脂肪性肝病(non-alcoholic fatty liver disease,NAFLD)的相关性,建立基于多靶标联合分析的NAFLD高效诊断模型。方法回顾性分析2021-01~12月作者单位疗养员的临床资料,通过训练集(80%样本)构建诊断模型并利用验证集(20%样本)评价诊断效果。联合Logistic回归和受试者工作特征(receiver operating characteristic,ROC)曲线筛选并评价不同组合的诊断效能。结果Logistic回归分析显示,体质量指数(body mass index,BMI)、丙氨酸氨基转移酶(alanine transaminase,ALT)、高密度脂蛋白(high-density lipoprotein,HDL)、尿酸(uric acid,UA)和血小板(platelet,PLT)与NAFLD密切相关。ROC曲线分析发现,联合BMI、ALT、HDL、UA和PLT的多靶标诊断模型显示出色的诊断价值,训练集中的曲线下面积(area under the curve,AUC)达0.981(95%CI:0.971~0.991),验证集为0.951(95%CI:0.931~0.972)。结论多靶标联合诊断模型对NAFLD具有重要价值,能满足体检人群和空勤疗养员NAFLD的筛检需求。
