Excessive amount of lactose in the diet of two-week-old calves induces urinary protein changes

Autor: A. Dratwa-Chałupnik, M. Ożgo, A. Lepczyński, A. Herosimczyk, K. Michałek
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Zdroj: Archives Animal Breeding, Vol 59, Iss 4, Pp 417-422 (2016)
Druh dokumentu: article
ISSN: 0003-9438
2363-9822
DOI: 10.5194/aab-59-417-2016
Popis: The present paper was undertaken to analyse and identify urinary proteins that were significantly altered in urine of calves in response to short-term administration of milk replacer with lactose addition. We used 2-D electrophoresis combined with matrix-assisted laser desorption/ionisation and time-of-flight (MALDI-TOF) mass spectrometry. Of all spots analysed, four showed significantly decreased abundance: alpha-1-antiproteinase (A1AT), serotransferrin (TF), sex hormone-binding globulin (SHBG) and cytochrome P450 2E1 (CYP2E1). One displayed an increased abundance: adenosine triphosphate (ATP)-citrate synthase. The changes in abundance of SHBG and CYP2E1 proteins were caused by the direct effect of an oversupply of sugar, while A1AT, TF and ATP-citrate synthase showed altered abundance probably due to indirect effects. The results of this study confirmed that calves' urine is a very precious biological material to evaluate the renal function, and it may be valuable in veterinary and zootechnical diagnostics.
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