Nutrition:ICU患者严重程度是否影响锌和硒水平?

2017-08-22 徐晓涵 环球医学

微量营养素对危重患者的重要性已经得到了很好的证明,而重症监护室(ICU)患者由于种种原因锌和硒的水平普遍较低。2017年7月,发表在《Nutrition》的一项由巴西科学家进行的研究,考察了不同严重程度的危重患者的锌、硒水平。

微量营养素对危重患者的重要性已经得到了很好的证明,而重症监护室(ICU)患者由于种种原因锌和硒的水平普遍较低。2017年7月,发表在《Nutrition》的一项由巴西科学家进行的研究,考察了不同严重程度的危重患者的锌、硒水平。

目的:评估不同生物材料中锌和硒的浓度,并根据简化急性生理学评分(SAPS)III评估其与临床严重程度评分的相关性。

方法:本研究在Américo Brasiliense州立医院/SP普通ICU的10个床位进行的,95例患者根据SAPS III评分截分点(63.5分)及脓毒症诊断分层为不太严重和更严重。对血浆、红细胞和尿中的锌、硒浓度进行分析。

结果:结果发现,两种微量营养素的血浆浓度均低于参考值(锌和硒分别为8.4±4.0μmol/和0.18±0.06μmol/L);尿中锌浓度高于参考值(38.6±35.8μmol/24小时)。这意味着脓毒症更严重的患者,硒的平均血浆浓度更低,而锌并非如此(p>0.05)。不同组间血浆和红细胞的平均硒浓度存在显着差异,但对锌的分析中未观察到这种现象。白蛋白水平(r=-0.26,P=0.01)和c反应蛋白(r=0.40,P<0.001)与SAPS III严重程度评分相关。

结论:入院时危重患者血浆中锌和硒的浓度较低,可能使这些患者更易受到氧化应激的影响。红细胞中硒低浓度可能表明了此人群的摄入量不足。应进行更多使用新的生物标记物的研究确定不同地区人口的相关数值。

原始出处:

Marina Augusta Cirino Ruocco, Evelin Drociunas Pacheco Cechinatti, MD, Fernando Barbosa Junior, Ph.D,et al.Zinc and Selenium status in critically ill patients according to severity stratification.Nutrition.2017.DOI: http://dx.doi.org/10.1016/j.nut.2017.07.009

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    2017-08-23 184****9840

    学习了谢谢分享

    0

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    2017-08-22 中医痴

    不错的.学习了.谢谢分享!

    0

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