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以下是报告的摘要部分：

  Quantitation of lipid storage, desaturation, and oxidation in live C. elegans has been a long-standing obstacle. By hyperspectral stimulated Raman scattering imaging and multivariate analysis in fingerprint vibration region, we present a platform that allows quantitative mapping of fat distribution, degree of fat unsaturation, lipid oxidation, and cholesterol storage in vivo in whole worm. Our results reveal for the first time that lysosome related organelles in intestinal cells are sites for storage of cholesterol in C. elegans.