Effects of carnitine on oxygen uptake and utilization of (U-14C)palmitate by ejaculated bull spermatozoa.
Fatty acid oxidation by washed intact ejaculated bull spermatozoa was depressed by carnitine concentrations as low as 5 mM, whereas oxygen uptake was only depressed by concentrations of 20 mM or above. Incorporation of (U-14C)-palmitate into 1,2-diglycerides was stimulated, and there was some stimulation of incorporation into phospholipids.
D000818:Animals; D002331:Carnitine / Q000494:pharmacology*; D002417:Cattle; D003864:Depression, Chemical; D004075:Diglycerides / Q000378:metabolism; D008297:Male; D009997:Osmotic Pressure; D010101:Oxygen Consumption / Q000187:drug effects*; D010169:Palmitic Acids / Q000378:metabolism*; D010743:Phospholipids / Q000378:metabolism; D013094:Spermatozoa / Q000187:drug effects* / Q000378:metabolism
D004075:Diglycerides; D010169:Palmitic Acids; D010743:Phospholipids; D002331:Carnitine