@article{oai:niigata-u.repo.nii.ac.jp:00020872, author = {捧, 博輝}, issue = {7}, journal = {新潟医学会雑誌, 新潟医学会雑誌}, month = {Jul}, note = {In the isolated endothelium-removed rabbit aorta (RA) precontracted with phenylephrine, 15 min treatment with methylene blue (15 min-MB) resulted in a rightward shift of the dose-response curve (DRC) for nitroglycerin (NTG) and nitric oxide (NO), while DRC for NaNO_2, sodium nitroprusside (SNP) and atriopeptin (ANP) was not affected. DRC for SNP was not affected in the dog coronary artery (DCA) (endothelium-removed and precontracted with KCl), while DRC for SNP was shifted to the right in the rat and guinea pig aorta. The relaxation by SNP or NaNO_2 was attenuated after 60 min-MB in RA but not in DCA. The relaxation by ANP was not affected after 60-min MB. While increases in tissue cyclic GMP in RA by NTG and NO were attenuated after 15 min-MB, the increases by SNP, NaNO_2 and ANP were not affected even after 60 min-MB. The relaxant effects of 8-Br cyclic GMP were not attenuated after 60 min-MB. Thus, the inhibition by MB of relaxation by SNP and NaNO_2 was due to its action on a process or processes operative before and/or in parallel with the accumulation of cyclic GMP. Species differences in the penetrability of MB were suggested.}, pages = {631--641}, title = {NO-forming vasodilatorsとatriopeptinによる血管平滑筋の弛緩とcyclic GMP増加に対するmethylene blueの効果について}, volume = {106}, year = {1992} }