{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,22]],"date-time":"2026-09-22T00:22:17Z","timestamp":1790036537339,"version":"4.0.1"},"reference-count":43,"publisher":"American Physiological Society","issue":"2","funder":[{"DOI":"10.13039\/100000002","name":"HHS | National Institutes of Health (NIH)","doi-asserted-by":"publisher","award":["R01HL071138"],"award-info":[{"award-number":["R01HL071138"]}],"id":[{"id":"10.13039\/100000002","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000002","name":"HHS | National Institutes of Health (NIH)","doi-asserted-by":"publisher","award":["R01DK083685"],"award-info":[{"award-number":["R01DK083685"]}],"id":[{"id":"10.13039\/100000002","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000002","name":"HHS | National Institutes of Health (NIH)","doi-asserted-by":"publisher","award":["R01NS083559"],"award-info":[{"award-number":["R01NS083559"]}],"id":[{"id":"10.13039\/100000002","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000968","name":"American Heart Association (AHA)","doi-asserted-by":"publisher","award":["13SDG17050056"],"award-info":[{"award-number":["13SDG17050056"]}],"id":[{"id":"10.13039\/100000968","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Society of Women's Health Research"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["American Journal of Physiology-Heart and Circulatory Physiology"],"published-print":{"date-parts":[[2015,7,15]]},"abstract":"<jats:p>Impaired nitric oxide (NO), soluble guanylyl cyclase (sGC), and cyclic guanosine monophosphate (cGMP) signaling (NO-sGC-cGMP) has been implicated in the pathogenesis of diabetic vascular dysfunction. Efforts to directly target this signaling have led to the development of sGC agonists that activate the heme group of sGC (stimulators) or preferentially activate sGC when the heme is oxidized (activators). In this study, we hypothesized that resistance arteries from female rats with spontaneous type 2 diabetes (Goto-Kakizaki rats, GK) would have reduced vasodilatory responses to heme-dependent sGC activation and increased responses to heme-independent sGC activation compared with control rats (Wistar). Endothelium-dependent and -independent relaxation was assessed in isolated segments from mesenteric resistance arteries (MA) mounted in a wire myograph. GK MA had reduced responses to acetylcholine (pEC<jats:sub>50<\/jats:sub>: 7.96 \u00b1 0.06 vs. 7.66 \u00b1 0.05, P &lt; 0.05) and sodium nitroprusside (pEC<jats:sub>50<\/jats:sub>: 8.34 \u00b1 0.05 vs. 7.77 \u00b1 0.04, P &lt; 0.05). There were no group differences in 8-bromoguanosine cGMP-induced relaxation and protein kinase G1 expression ( P &gt; 0.05). GK MA had attenuated responses to BAY 41\u20132272 (heme-dependent sGC stimulator; pEC<jats:sub>50<\/jats:sub>: 7.56 \u00b1 0.05 vs. 6.93 \u00b1 0.06, P &lt; 0.05) and BAY 58\u20132667 (heme-independent sGC activator; pEC<jats:sub>50<\/jats:sub>: 10.82 \u00b1 0.07 vs. 10.27 \u00b1 0.08, P &lt; 0.05) and increased sensitivity to sildenafil [phosphodiesterase 5 (PDE5) inhibitor; pEC<jats:sub>50<\/jats:sub>: 7.89 \u00b1 0.14 vs. 8.25 \u00b1 0.13, P &lt; 0.05]. Isolated resistance arteries from female rats of reproductive age that spontaneously develop type 2 diabetes have increased sensitivity to PDE5 inhibition and reduced responsiveness to sGC activators and stimulators.<\/jats:p>","DOI":"10.1152\/ajpheart.00079.2015","type":"journal-article","created":{"date-parts":[[2015,5,9]],"date-time":"2015-05-09T02:51:34Z","timestamp":1431139894000},"page":"H297-H304","source":"Crossref","is-referenced-by-count":25,"title":["Reduced vascular responses to soluble guanylyl cyclase but increased sensitivity to sildenafil in female rats with type 2 diabetes"],"prefix":"10.1152","volume":"309","author":[{"given":"Styliani","family":"Goulopoulou","sequence":"first","affiliation":[{"name":"Department of Physiology, Georgia Regents University, Augusta, Georgia;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Johanna L.","family":"Hannan","sequence":"additional","affiliation":[{"name":"Department of Physiology, Georgia Regents University, Augusta, Georgia;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Takayuki","family":"Matsumoto","sequence":"additional","affiliation":[{"name":"Department of Physiology and Morphology, Institute of Medicinal Chemistry, Hoshi University, Shinagawa-ku, Tokyo, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Safia","family":"Ogbi","sequence":"additional","affiliation":[{"name":"Department of Physiology, Georgia Regents University, Augusta, Georgia;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Adviye","family":"Ergul","sequence":"additional","affiliation":[{"name":"Department of Physiology, Georgia Regents University, Augusta, Georgia;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"R. 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