{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,2,21]],"date-time":"2025-02-21T12:58:10Z","timestamp":1740142690043,"version":"3.37.3"},"reference-count":28,"publisher":"FapUNIFESP (SciELO)","issue":"3","license":[{"start":{"date-parts":[[2019,3,1]],"date-time":"2019-03-01T00:00:00Z","timestamp":1551398400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"},{"start":{"date-parts":[[2019,3,1]],"date-time":"2019-03-01T00:00:00Z","timestamp":1551398400000},"content-version":"am","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"},{"start":{"date-parts":[[2019,3,1]],"date-time":"2019-03-01T00:00:00Z","timestamp":1551398400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Rev. Assoc. Med. Bras."],"abstract":"<jats:p>SUMMARY  OBJECTIVES: We examined the effects of tadalafil, one of the phosphodiesterase type 5 (PDE5) inhibitors, in a rat model of with partial and complete unilateral ureteral obstruction (UUO).  METHODS: The rats were divided into 5 groups: sham (n=6), partial unilateral ureteral obstruction (PUUO, n=6), PUUO with tadalafil treatment (PUUO+T; Cialis, 10 mg\/72 h, intragastric; Lilly, Indianapolis, Indiana, USA), complete unilateral ureteral obstruction (CUUO, n=6), and CUUO with tadalafil treatment (CUUO+T).  RESULTS: Fifteen days after the UUO, the ureter presented changes in the layers of urothelium and significant infiltration of inflammatory cells in the PUUO and CUUO groups. Compared with the sham, PUUO and CUUO groups had severe increased inflammatory cell infiltration. The urothelial epithelium exhibited cell degeneration and loss because of the swollen, atrophic, and denuded epithelial cells in the PUUO and CUUO groups. In the PUUO+T and CUUO+T groups, the urothelium revealed less epithelial cell degeneration and loss. The expressions of \u03b1-smooth muscle actin (\u03b1-SMA) and transforming growth factor-\u03b2 (TGF-\u03b2) exhibited up-regulation in the PUUO and CUUO groups. The expression of TGF-\u03b2 decreased positively correlated with that of \u03b1-SMA in the tadalafil therapy groups, PUUO+T and CUUO+T.  CONCLUSION: The phosphodiesterase type 5 inhibitor's tadalafil reduced expressions of \u03b1-SMA and TGF-\u03b2 in the obstructed ureters, measured by biochemical examinations. In addition, tadalafil decreased urothelium degeneration due to the decreased epithelial cell loss and inflammatory cell infiltration. Our results show that tadalafil prevents or slows down the onset of ureter inflammation and urothelial degeneration in rats with UUO.<\/jats:p>","DOI":"10.1590\/1806-9282.65.3.388","type":"journal-article","created":{"date-parts":[[2019,4,11]],"date-time":"2019-04-11T17:27:55Z","timestamp":1555003675000},"page":"388-393","source":"Crossref","is-referenced-by-count":4,"title":["Positive outcomes of phosphodiesterase type 5 inhibitor on histopathologic and biochemical changes induced by ureteral obstruction"],"prefix":"10.1590","volume":"65","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5636-3300","authenticated-orcid":false,"given":"Sibel","family":"K\u00f6kt\u00fcrk","sequence":"first","affiliation":[{"name":"Istanbul University,  Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8485-1424","authenticated-orcid":false,"given":"Erdal","family":"Benli","sequence":"additional","affiliation":[{"name":"Ordu University,  Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3724-2516","authenticated-orcid":false,"given":"Ali","family":"Ayy\u0131ld\u0131z","sequence":"additional","affiliation":[{"name":"Ordu University,  Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8474-0185","authenticated-orcid":false,"given":"Selma","family":"C\u0131rr\u0131k","sequence":"additional","affiliation":[{"name":"Ordu University,  Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4940-4498","authenticated-orcid":false,"given":"Yeliz","family":"\u00c7etinkol","sequence":"additional","affiliation":[{"name":"Ordu University,  Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2354-2713","authenticated-orcid":false,"given":"Sema Nur","family":"Ayy\u0131ld\u0131z","sequence":"additional","affiliation":[{"name":"Ordu 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