Neurological Deficit Scores in sham operated rats and Et-1 treated WKYRs and SHRs. Rats were injected with 200 pmol Et-1 and the NDS was assessed at different time points. At 24 h, there was a significant difference between the NDS of the two strains.. *Significant difference between WKYRs and SHRs. $ Significant difference between sham and Et-1 treated animals. ns: no significant difference between WKYRs and SHRs. Group sizes were n = 6 to 13 at 1 h, n = 5 to 10 at 6 h, n = 13 to 15 at 24 h, n = 3 to 5 at 48 h and n = 4 to 6 at 72 h.