Table 1.

Log EC₅₀ values from concentration–response curves to 5-HT in arterial segments from WKY and SHR

Age	WKY	SHR
4 weeks	−5.32±0.07 (15)	−5.32±0.16 (16)
8 weeks	−5.26±0.08 (16)	−5.72±0.10* (16)

Abbreviations: SHR, spontaneously hypertensive rats; WKY, wistar–Kyoto.^*P<0.05, unpaired t-test versus WKY.