Group Days
  15th day 30th day 45th day 60th day 75th day 90th day
Control 15.16 ± 0.31 13.66 ± 0.67 13.33 ± 0.33 13.00 ± 0.57 14.00 ± 0.57 12.50
SP-S 14.16 ± 0.60
(6.59)		 14.00 ± 0.58
(-2.48)		 13.50 ± 0.56
(-1.27)		 12.50 ± 0.67
(3.84)		 11.50 ± 0.22
(17.85)		 11.00
(12.00)
AD 15.83 ± 0.60
(-4.41)		 37.50 ± 0.43
(-174.52)		 61.16 ± 0.87
(-358.81)		 74.66 ± 0.88
(-474.30)		 109.00 ± 2.28
(-678.57)		 121.50
(-872.00)
AD+ SP-S 14.66 ± 0.33
(3.29)
(7.39) *		 36.16 ± 0.65
(-164.71)
(3.57)*		 55.16 ± 0.60
(-313.80)
(9.81)*		 63.83 ± 1.53
(-391.00)
(10.83)*		 42.00 ± 0.36
(-200.00)
(61.46)*		 29.00
(-132.00)
(76.13)*
Table 4: Differences in the Escape latency (Seconds) between Control and Experimental groups of rats treated with SP-S, D-Gal and D-Gal + SP-S on selected days of experimentation. Values are Mean ± SEM of six observations each from tissues pooled from 6 rats. Values in parentheses are percent changes from control (Except *).*Values in parentheses are percent changes from ADinduced rats. Values are significantly different from control at p < 0.01.
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