Avtor/Urednik		Nemec, A; Drobnič-Košorok, M; Skitek, M; Pavlica, Z; Galac, S; Butinar, J
Naslov		Total antioxidant capacity (TAC) values and their correlation with individual antioxidants in serum of healthy beagles
Tip		članek
Vir		Acta Vet Brno
Vol. in št.		Letnik 69
Leto izdaje		2000
Obseg		str. 297-303
Jezik		eng
Abstrakt		The paper aims to establish a range for serum Total Antioxidant Capacity (TAC) and to determine the correlation between TAC and some individual antioxidants (vitamin A and E, lipid standardised vitamin E [Vit E/LS/], beta-carotene, total bilirubin and albumin) in a uniform population of beagle dogs. Emphasis was directed on their general health status to establish a basis for future investigation of the role of TAC in diseases of dogs as species most frequently studied in veterinary medicine. The animal body possesses a variety of protective antioxidant substances that act as a harmoniously and finely tuned mechanism to neutralise harmful oxidants. TAC measurements provide a tool for establishing links between antioxidant capacity and the risk of disease as well as for monitoring of antioxidant therapy. Serum samples of 19 healthy beagles were assayed for TAC on LP 700 photometer (Dr. Lange, Germany) with a commercially available TAS kit ("Total Antioxidant Status" - TAS; Randox, Crumlin, UK). TAS kit measures the capacity of all of the antioxidants present in serum or plasma sample. The assay is based on the suppression of the absorbance of the radical cation of 2,2"-azinobis (3-ethylbenzothiazoline-6-sulfonate) (ABTS'+) by antioxidants. Assay results are expressed as mmol/1 of Trolox (6-hydroxy-2, 5, 7, tetramethylchroman-2-carboxylic acid - a water-soluble analogue of a-tocopherol) equivalents. The range for TAC expressed as mean ± SD resulted in 1.08 ± 0.08 mmol/1. TAC correlated positively with albumin (r = 0.18), vitamin E (r=0.14) and Vit E (LS) (r = 0.20), and negatively with total bilirubin (r = -0.30), vitamin A (r = -0.15) and beta-carotene (r = -0.13) although no significant correaltion has been found.
Deskriptorji		ANTIOXIDANTS VITAMIN A VITAMIN E BETA CAROTENE BILIRUBIN DOGS SERUM ALBUMIN FREE RADICALS HEMATOLOGIC TESTS BLOOD CHEMICAL ANALYSIS