Effect of High Blood Cortisol Concentration on the Spectroscopically Determined Secondary Structure of Proteins and Lipid Balance on the Example of Elite Women Volleyball Players

IF 0.2 Q4 SPORT SCIENCES
J. Depciuch, W. Czarny, W. Szuszkiewicz, A. Reich, B. Klębowski, Wojciech Bajorek, Artur Płonka, I. Łuszczewska-Sierakowska, J. Cebulski, P. Król
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引用次数: 0

Abstract

Cortisol is a stress hormone plays a crucial role in the balance between phospholipids and lipids level. In consequence, it affects the secondary structure of proteins. Currently cortisol concentration in plasma is determined by biochemical analysis. A new, optical method to estimate stress level is proposed in this work. Infrared and Raman spectroscopies were used to determine quantitative and qualitative changes in the lipids and proteins fraction in function of cortisol concentration in 49 samples of plasma collected from volleyball players at various stages of preparation for the competition. With the cortisol level increase, a decrease of structures related to PO2- phospholipids groups and amides III, II and I bonds was noticed in the transmission spectra. Changes in the secondary structure of protein were indicated as a frequency shift of α-helix and β-sheet vibrations observed in Raman spectra and second derivative of transmission spectra. Pearson correlation test presented positive correlations between phospholipids and proteins level and between cortisol concentration and phospholipids in transmittance spectra. Negative correlations between cortisol concentration and proteins and phospholipids level was observed in the Raman spectra. Both optical techniques are considered to become effective tools for estimating the concentration of cortisol in the plasma.
以优秀女排运动员为例,高血皮质醇浓度对光谱测定蛋白质二级结构和脂质平衡的影响
皮质醇是一种应激激素,在磷脂和脂质水平之间的平衡中起着至关重要的作用。因此,它会影响蛋白质的二级结构。目前,血浆中皮质醇的浓度是通过生化分析来确定的。本文提出了一种新的光学方法来估计应力水平。使用红外和拉曼光谱法测定了49份排球运动员在比赛准备各个阶段采集的血浆样本中脂质和蛋白质组分随皮质醇浓度的定量和定性变化。随着皮质醇水平的升高,透射光谱中与PO2-磷脂基团和酰胺III、II和I键相关的结构减少。蛋白质二级结构的变化表示为在拉曼光谱和透射光谱的二阶导数中观察到的α-螺旋和β-片振动的频移。Pearson相关检验表明,透过光谱中磷脂与蛋白质水平呈正相关,皮质醇浓度与磷脂呈正相关。在拉曼光谱中观察到皮质醇浓度与蛋白质和磷脂水平之间的负相关性。这两种光学技术都被认为是评估血浆中皮质醇浓度的有效工具。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Acta Kinesiologica
Acta Kinesiologica SPORT SCIENCES-
自引率
33.30%
发文量
18
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