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Changes of urinary proteome in rats after intragastric administration of calcium gluconate

Shen, Z.; Yang, M.; Wang, H.; Gao, Y.

2024-03-08 biochemistry
10.1101/2024.03.04.583150 bioRxiv
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AbtractCalcium is an essential element for maintaining the normal physiological function of organisms. In this study, 3225 mg/kg/d calcium gluconate (equivalent to 300 mg/kg/d calcium) was intragastrically administered to rats for 4 days, and the urine proteome of rats was analyzed. Many differential proteins have been reported to be calcium related, such as Regucalcin (2.6 times higher after gavage than before gavage, p = 0.022), transmembrane protein 132A (8.2 times higher after gavage than before gavage, p = 0.009), creatine kinase (17.5 times higher before gavage than after gavage, p = 0.006), and claudin-3 (13.3 times higher before gavage than after gavage, p = 0.037). Differential protein enriched KEGG pathways included calcium signaling pathways, and biological processes and molecular functions also showed correlation with calcium. In this study, from the perspective of urine proteomics to explore the overall impact of calcium on the body, it is helpful to deeply understand the biological function of calcium and broaden the application potential of urine proteomics.

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