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Sci Rep:解吸电离质谱法早期检测单侧输尿管梗阻研究

2019-08-14 AlexYang MedSci原创

解吸电离质谱法(DESE-MS)是原位快速评估组织模块代谢情况的分析工具,并且不需要进行组织预处理或者标记。最近,有研究人员应用了DESI-MS的方法来鉴定与早期阶段肾损伤相关的候选代谢生物标记。研究人员对80只单侧输尿管梗阻小鼠的肾组织块进行EDSI-MS分析,并与sham对照组进行了比较。研究人员利用LASSO方法建立了肾损伤的预测模型。研究发现,单侧输尿管梗阻组中,脂质和小分子代谢物发生了明

解吸电离质谱法(DESE-MS)是原位快速评估组织模块代谢情况的分析工具,并且不需要进行组织预处理或者标记。最近,有研究人员应用了DESI-MS的方法来鉴定与早期阶段肾损伤相关的候选代谢生物标记。

研究人员对80只单侧输尿管梗阻小鼠的肾组织块进行EDSI-MS分析,并与sham对照组进行了比较。研究人员利用LASSO方法建立了肾损伤的预测模型。研究发现,单侧输尿管梗阻组中,脂质和小分子代谢物发生了明显的改变,并且甘油磷脂占据主要位置。这些改变与脂质代谢相关基因表达的变化相关,且大多数基因表达量减少。然而,PG(22:6/22:6)表达水平的的快速上调是迄今为止仍旧未知的在UUO中观察到的代谢转变特性。研究人员通过使用LASSO和SAM,鉴定了一系列能够准确预测UUO诱导肾损伤的代谢物,这些代谢物可以在UUO后12个小时检测到,优于明显的组织学变化。

最后,研究人员指出,DESI-MS能够作为鉴定肾损伤的一个有力的辅助工具,同时也阐释了脂质相关膜早期和广泛的变化。

原始出处:

Shibdas Banerjee, Anny Chuu-Yun Wong, Xin Yan et al. Early detection of unilateral ureteral obstruction by desorption electrospray ionization mass spectrometry. Sci Rep. 29 Jul 2019

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