id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ct-10351	Ferrer, Maria; Palomares, Roberto; Maldonadox-Estrada, Juan	Role of trace minerals in bull reproductive physiology and semen quality	2024	7	.pdf	application/pdf	6567	302	36	Although some investigators have not detected CAT activity in bull sperm, CAT activity remains higher in bovine seminal plasma that originate from prostate.12 Peroxiredoxins are nonselenium enzymes capable of scavenging H2O2, organic hydroperoxides, and ONOO–, and are widely distributed in all compartments of bovine sperm.14 Nonenzymatic antioxidants in bovine seminal plasma include glutathione, melatonin, ergothionine, carni- tines, ascorbic acid, α-tocopherol, pyruvate, taurine/hypotau- rine, retinol, and urate.12 Oxidative damage can also occur due to a deficiency in enzymatic antioxidants, generated by a genetic mutation, incorrect posttranslational modification, posttranslational deactivation, nutritional deficiency, disease states, or toxicities.12 Nutritional sources of Zn, Cu, Mn, and Se are required for sufficient SOD and GPX production and activity.12 Deficiencies in these trace minerals can result in inadequate production of these enzymes because they are integral parts of their active core. Kowalczyk A: The role of the natural antioxidant mechanism in sperm cells.	cache/ct-10351.pdf	txt/ct-10351.txt