Table 1.

Apparent diffusion coefficient in the left (treated) and right (control) striatum

Time (hr)	ADC (×10−4 mm2/sec)
	Control		IL-1β		Neutrophil depletion and IL-1β
	Left	Right	Left	Right	Left	Right
4			6.74  ± 0.82	6.96  ± 0.76
5			6.63  ± 0.38	7.15  ± 0.56
6	7.30  ± 0.25	7.29  ± 0.21	5.42  ± 0.35*	7.35  ± 0.77	6.64  ± 0.34*	7.49  ± 0.38
27			6.29  ± 0.35*	7.14  ± 0.61	7.15  ± 0.58	7.28  ± 0.27
123			5.90  ± 0.70*	7.10  ± 0.87	7.10  ± 0.26	7.13  ± 0.15

ADC, Apparent diffusion coefficient measured within a region of interest encompassing the striatum. Control, Injection of 1 μl of vehicle only into the left striatum. IL-1β, Pretreatment with anti-neutrophil serum to deplete animals of neutrophils followed by injection of 1 μl of IL-1β (1 ng/μl) into the left striatum.

^*Significantly different from control (right hemisphere) by paired t test at that time point (p< 0.05).