Table 2.

Effect of methyl mercury chloride treatment of rats on maximum response (R _max⁡) and sensitivity (pD2) to acetylcholine, isoproterenol, and sodium nitroprusside in endothelium-denuded aortic rings.

	ACh		SNP		IP
	R max⁡	pD2	R max⁡	pD2	R max⁡	pD2
Untreated	2.1 ± 1.3	6.1 ± 0.3	80.5 ± 3.5	8.1 ± 0.1	27.5 ± 2.8	7.9 ± 0.4
Methyl mercury chloride treated	3.3 ± 1.9	6.1 ± 0.02	80.5 ± 2.9	8.1 ± 0.2	27.5 ± 1.6	7.9 ± 0.7

Results are expressed as % of the previous contraction to phenylephrine and pD2 is expressed as −log one half.