Table 1.

Brain water content in MCAO model with and without reperfusion.

	No reperfusion		8 hr reperfusion
	Left hemisphere	Right hemisphere	Left hemisphere	Right hemisphere
Control	77.58 ± 0.20 (n = 5)	78.05 ± 0.29 (n = 5)	77.34 ± 0.18 (n = 3)	77.32 ± 0.14 (n = 3)
Ischemia 3 h	77.25 ± 0.16 (n = 5)	78.14 ± 0.25 (n = 5)	77.97 ± 0.17 (n = 8)	81.28 ± 0.34* (n = 8)

Water content was calculated as [(wet weight − dry weight)/wet weight] × 100% in rats where MCAO had been performed on the right side. In control rats no significant change occurred with or without reperfusion. In animals with MCAO in the right hemisphere a small apparent increase in water content in this hemisphere after 3 hr of ischemia was not statistically significant, whereas a larger increase after reperfusion marked with ∗ was significant (P < 0.05). It was also significantly different (P < 0.05) from the small apparent increase without reperfusion.