Total Antioxidant Capacity of Body Fluids

Some authors found a lower blood plasma TAC of women than men (by 23%) and a higher (by 21%) plasma TAC in persons having high serum cholesterol ( 6 mM) (A12). The gender difference may be related to a lower concentration of uric acid in the blood serum of women (B7). [Pg.241]

Total Antioxidant Capacity of Human Blood Plasma and Serum3 [Pg.242]

Material (anticoagulant) Value (Trolox equivalents) Method Ref. [Pg.242]

3 EDTA, Ethylenediaminetetraacetic acid TAS, total antioxidant status TRAP, total peroxyl-radical-trapping antioxidant capability of plasma ABAP, 2,2 -azobis(2-amidopropane) FRAP, ferric-reducing activity of plasma H2-DCF-DA, 2, 7 -dichlorofluorescein diacetate ORAC, oxygen-radical-absorbing capacity ABTS, 2,2 -azinobis(3-ethylbenzthiazoline-6-sulfonic acid). [Pg.242]

In women, menopause may affect TAC of blood plasma one group found that TAC was significantly decreased in perimenopausal and postmenopausal women as compared with a premenopausal group (K16). Seemingly, the lack of estrogens in menopause leads to a redox imbalance reflected by decreased blood plasma TAC. Decreased TAC of blood plasma also has been found by other investigators, who reported a 23% decrease in TAC in postmenopausal women without hot flushes (as compared with premenopausal women) and a 40% decrease in women with hot flushes (L7). [Pg.243]

Alterations in Total Antioxidant Capacity of Body Fluids and Tissue Homogenates... [Pg.219]

As we have previously shown, the determination of OS is made by many different tests. Most of these are experimental and those available for routine clinical use are capable of detecting some endogenous substances (DNA, lipids derivatives, proteins), which have been oxidized or have the total antioxidant capacity of body fluids. All these tests represent a derivatization of the OS and measure different type of substrates. The results that come out from each test cannot be comparable with the others, and it may turn out that the... [Pg.218]

Total Antioxidant Capacity of Various Human Body Fluids 2... [Pg.245]

Miller and Rice-Evans have recently developed a method to measure the total antioxidant capacity of solutions of pure compounds, as well as plasma, serum and other body fluids, plant extracts, beverages, etc. [125-126]. This method is based on the inhibition of the absorbance of the 2,2 -azinobis(3-ethylbenz-thiazoline-6-sulfonic acid) (ABTS) radical cation (ABTS,+) by antioxidants. Although the chromophore ABTS + has... [Pg.323]

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