目的:探讨氨甲环酸联合超分子水杨酸换肤治疗黄褐斑临床疗效及对血清丙二醛(MDA),雌二醇(E2)水平的影响。方法:将2019年12月-2021年12月合肥市第二人民医院皮肤科经治的116例黄褐斑患者随机分为对照组(58例,口服氨甲环酸片)和观察组(58...目的:探讨氨甲环酸联合超分子水杨酸换肤治疗黄褐斑临床疗效及对血清丙二醛(MDA),雌二醇(E2)水平的影响。方法:将2019年12月-2021年12月合肥市第二人民医院皮肤科经治的116例黄褐斑患者随机分为对照组(58例,口服氨甲环酸片)和观察组(58例,口服氨甲环酸片联合30%超分子水杨酸治疗),两组患者均治疗20周。比较两组患者临床疗效[医生整体评价(Physician's global assessment,PGA)、黄褐斑面积和严重指数(Melasma area and severity index,MASI)、皮损评分、经表皮水分流失及皮肤角质层含水量]、主观指标(满意度、睡眠及精神状态)及血清MDA、E2水平。结果:观察组有效率93.10%高于对照组63.79%(P<0.05);两组治疗后MASI、皮损评分、经表皮水分流失及血清MDA、E2水平均较治疗前下降,且观察组改善优于对照组(P<0.05);两组治疗后角质层含水量均升高,且观察组升高更显著(P<0.05)。观察组PGA评分低于对照组(P<0.05)。观察组治疗后治疗满意度评分、睡眠评分、精神状态评分显著高于对照组(P<0.05)。两组治疗期间均未出现不良反应。结论:氨甲环酸联合超分子水杨酸换肤治疗黄褐斑效果显著,并可改善患者氧化应激反应及雌激素水平。展开更多
Oxidative reactions are key part of the stress response in marine organisms, which are exposed to a wide variety of environmental stressors. Lipid peroxidation (LPO) occurs in response to oxidant attack, giving rise t...Oxidative reactions are key part of the stress response in marine organisms, which are exposed to a wide variety of environmental stressors. Lipid peroxidation (LPO) occurs in response to oxidant attack, giving rise to unsaturated aldehydes as malondialdehyde (MDA), the main biomarker for LPO assessment. Levels of MDA are measured in biological samples of different fish matrices to determine the oxidative effect of physical or chemical agents, particularly represented by metals. The most used assay is the spectrophotometric determination of thiobarbituric acid (TBA) as MDA-TBA2 adduct. Selectivity is enhanced by separating the adduct by chromatographic methods such as high-performance liquid chromatography or by using alternative derivatization reagents. Because, in biological organism, MDA is found free or protein bound, the two forms should be measured, and the extraction procedures are a crucial step in the processing of the biological sample. This review focused on MDA determination procedures used to assess the effect of experimental and environmental stress induced in fish.展开更多
文摘目的:探讨氨甲环酸联合超分子水杨酸换肤治疗黄褐斑临床疗效及对血清丙二醛(MDA),雌二醇(E2)水平的影响。方法:将2019年12月-2021年12月合肥市第二人民医院皮肤科经治的116例黄褐斑患者随机分为对照组(58例,口服氨甲环酸片)和观察组(58例,口服氨甲环酸片联合30%超分子水杨酸治疗),两组患者均治疗20周。比较两组患者临床疗效[医生整体评价(Physician's global assessment,PGA)、黄褐斑面积和严重指数(Melasma area and severity index,MASI)、皮损评分、经表皮水分流失及皮肤角质层含水量]、主观指标(满意度、睡眠及精神状态)及血清MDA、E2水平。结果:观察组有效率93.10%高于对照组63.79%(P<0.05);两组治疗后MASI、皮损评分、经表皮水分流失及血清MDA、E2水平均较治疗前下降,且观察组改善优于对照组(P<0.05);两组治疗后角质层含水量均升高,且观察组升高更显著(P<0.05)。观察组PGA评分低于对照组(P<0.05)。观察组治疗后治疗满意度评分、睡眠评分、精神状态评分显著高于对照组(P<0.05)。两组治疗期间均未出现不良反应。结论:氨甲环酸联合超分子水杨酸换肤治疗黄褐斑效果显著,并可改善患者氧化应激反应及雌激素水平。
文摘Oxidative reactions are key part of the stress response in marine organisms, which are exposed to a wide variety of environmental stressors. Lipid peroxidation (LPO) occurs in response to oxidant attack, giving rise to unsaturated aldehydes as malondialdehyde (MDA), the main biomarker for LPO assessment. Levels of MDA are measured in biological samples of different fish matrices to determine the oxidative effect of physical or chemical agents, particularly represented by metals. The most used assay is the spectrophotometric determination of thiobarbituric acid (TBA) as MDA-TBA2 adduct. Selectivity is enhanced by separating the adduct by chromatographic methods such as high-performance liquid chromatography or by using alternative derivatization reagents. Because, in biological organism, MDA is found free or protein bound, the two forms should be measured, and the extraction procedures are a crucial step in the processing of the biological sample. This review focused on MDA determination procedures used to assess the effect of experimental and environmental stress induced in fish.
