Table 6.

Effect of Hydroxyurea and Plant Extracts on the Resistance of RBCs to Hemolysis^a

% NaCl	control	hydroxyurea	Z. zanthoxyloides leaf	C. cajan leaf	C. cajan seed	C. papaya leaf
0	0.708 ± 0.01 a	0.699 ± 0.02 b	0.701 ± 0.00 b	0.764 ± 0.08 c	0.757 ± 0.05 d	0.779 ± 0.09 e
0.1	0.680 ± 0.00 a	0.678 ± 0.01 b	0.688 ± 0.01 c	0.719 ± 0.00 d	0.600 ± 0.01 e	0.699 ± 0.01 f
0.2	0.640 ± 0.00 a	0.610 ± 0.01 b	0.615 ± 0.02 c	0.619 ± 0.02 d	0.520 ± 0.08 e	0.607 ± 0.05 f
0.3	0.421 ± 0.03 a	0.201 ± 0.00 b	0.221 ± 0.00 c	0.400 ± 0.00 d	0.221 ± 0.00 c	0.404 ± 0.00 e
0.4	0.212 ± 0.00 a	0.139 ± 0.01 b	0.140 ± 0.04 b	0.200 ± 0.06 c	0.142 ± 0.00 d	0.219 ± 0.00 e
0.5	0.167 ± 0.00 a	0.077 ± 0.00 b	0.101 ± 0.02 c	0.117 ± 0.01 d	0.120 ± 0.03 e	0.112 ± 0.06 f
0.6	0.119 ± 0.00 a	0.039 ± 0.01 b	0.059 ± 0.00 c	0.100 ± 0.00 d	0.102 ± 0.04 e	0.073 ± 0.01 f
0.7	0.122 ± 0.00 a	0.024 ± 0.00 b	0.039 ± 0.07 c	0.070 ± 0.00 d	0.049 ± 0.03 e	0.060 ± 0.02 f
0.8	0.076 ± 0.01 a	0.011 ± 0.00 b	0.019 ± 0.05 c	0.029 ± 0.08 d	0.019 ± 0.00 c	0.040 ± 0.00 e
0.9	0.00	0.00	0.00	0.00	0.00	0.00

^aThe spaced letters a–f indicate the level of significance of the difference between different agents and the control, which was obtained by SPSS Statistics, i.e., two distinct letters (e.g., a and b) indicate significant difference (p-value <0.05) and two letters of the same identity indicate nonsignificant difference (p-value >0.05).