The Relationship of Oxidation Sensitivity of Red Blood Cells and Carbonic Anhydrase Activity in Stored Human Blood: Effect of Certain Phenolic Compounds

Table 5

The protective effects of caffeic acid, resveratrol, and tannic acid on GSH-Px activity of RBC in stored whole blood time-dependently.

GSH-Px (IU/gHb)
	Control	Caffeic acid	Resveratrol	Tannic acid
Baseline	50.35 ± 2.38	48.92 ± 3.73	49.14 ± 2.81	50.29 ± 4.24
7th day	45.47 ± 2.89^҂	50.93 ± 3.36	52.09 ± 2.25	50.82 ± 1.81
14th day	42.79 ± 2.59^҂	53.07 ± 2.87	53.43 ± 2.61	51.38 ± 1.93
21st day	37.05 ± 2.04^҂	51.20 ± 3.26	50.35 ± 2.32	49.76 ± 1.51
28th day	28.69 ± 3.91^҂	46.65 ± 3.03	48.90 ± 2.38	45.30 ± 1.74

Significant differences () between the control and treated groups are indicated by .
Significant differences () in each group from time 0 (baseline) are given by .