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A New Strategy in Urinary Phospholipid Analysis: ‘qShot MALDI’ Analysis and its Clinical Applications
Speakers:
Xin Li, M.D., Ph.D.

Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF/MS) has been used for lipid analysis since the 2000s. However, the poor reproducibility and quantitative ability hinder its application in clinical biomarker screenings. To improve the clinical usage of MALDI-TOF/MS, especially for quantitative detection of the urinary phospholipids (PLs) and lysophospholipids (LPLs), we have adopted three main strategies including the selection of a proper matrix, a specially designed plate, and a spike of ionization standards. This system, named “qShot MALDI” analysis, offers a quick, qualitative, and quantitative detection of urinary PLs and LPLs. Meanwhile, a clinical application of this system was conducted for screening urine lipidomic biomarkers for prostate cancer. The results indicated that the qShot MALID system had a good performance with rapid, convenient, and reproducible properties.

Jun 24, 2021 03:00 PM in Pacific Time (US and Canada)

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