红外光谱与机器学习算法相结合,用于调查卵巢切除中的血管功能障碍:动物模型研究
Tháfanys S Travezani1, Márcia H C Nascimento2, Tagana R da Cunha1
1Department of Physiological Sciences, Federal University of Espirito Santo, Av. Mal. Campos, 1468 - Maruípe, Vitória 29047-105, Espírito Santo, Brazil.
ACS omega
|February 10, 2025
概括
中红外光谱检测不检测显著的系统变化在卵巢切除的老鼠手术后15天. 这项研究使用FTIR分析发现,对照组和卵巢切除组之间没有明确的区别.
科学领域:
- 生物医学光谱学 生物医学光谱学
- 血管生物学 血管生物学
- 动物模型 动物模型
背景情况:
- 减少女性性激素会损害血管内皮的功能,导致疾病.
- 卵巢切除模型对于研究血管功能障碍至关重要.
- 里埃变换红外光谱 (FTIR) 提供了详细的分子洞察力.
研究的目的:
- 用中红外光谱测试来评估卵巢切除模型中的系统变化.
- 根据血清配置文件,确定FTIR是否可以区分假和被卵巢切除的老鼠.
- 为了评估卵巢切除术后的血管功能障碍标志物.
主要方法:
- 在卵巢切除术后15天,对38个Wistar大鼠血清样本 (18个SHAM,20个OVX) 的分析.
- 使用Bruker Alpha II FTIR设备获得的血清光谱数据.
- 在MATLAB 2023中进行的无监督 (PCA) 和监督 (PLS-DA) 分析.
主要成果:
- 主要组件分析 (PCA) 没有显示OVX和SHAM组之间的明显区别.
- 部分最小平方区分分析 (PLS-DA) 显示准确率为72.7%,但y-变换测试显示了随机结果.
- 在手术后15天,组之间没有发现显著的全身形状差异.
结论:
- 使用PCA和PLS-DA进行的中红外光谱学无法在卵巢切除术15天后在老鼠中发现显著的系统差异.
- 可能需要进一步的研究来探索更长的时间点或不同的分析方法.
- 在这种特定的卵巢切除模型中,FTIR光谱可能没有足够的灵敏度来检测早期的系统变化.
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