ArticleMetabolites2026
Sex-Driven Variation in Polar Metabolites and Lipid Motifs of
Article in Metabolites, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
BACKGROUND/
objectivesSea urchin gonads ("roe") are a valuable seafood product and a chemically complex matrix whose composition varies with physiology and environment. We present a biphasic extraction and
methodsGonads from 37 adults (23 males, 14 females) collected at two sites (Alicante and Jávea-Dénia, Spain; October 2024) were lyophilized, extracted with methanol/chloroform/water, and analyzed by 400 MHz
resultsPolar fingerprints enabled supervised modelling: PLS-LDA separated sexes with low cross-validated error, and SPA/COSS ranking highlighted glycine, alanine, creatine and osmolyte-associated signals as key discriminants; pathway mapping supported the enrichment of amino-acid and one-carbon/purine networks. Apolar spectra were annotated at the motif level and used for lipid-index estimation, indicating substantial unsaturation but low docosahexaenoic acid (DHA) and modest sex effects.
conclusionsThe curated peak lists and reporting framework facilitate reproducible NMR annotation and future comparative studies of
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