{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,8]],"date-time":"2026-03-08T19:05:10Z","timestamp":1772996710067,"version":"3.50.1"},"reference-count":61,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2025,1,8]],"date-time":"2025-01-08T00:00:00Z","timestamp":1736294400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2025,1,8]],"date-time":"2025-01-08T00:00:00Z","timestamp":1736294400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Andrology"],"published-print":{"date-parts":[[2025,11]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>\n                      Androgen deprivation is associated with erectile dysfunction (ED). In different animal models, sulfur dioxide (SO\n                      <jats:sub>2<\/jats:sub>\n                      ) donors Na\n                      <jats:sub>2<\/jats:sub>\n                      SO\n                      <jats:sub>3<\/jats:sub>\n                      and NaHSO\n                      <jats:sub>3<\/jats:sub>\n                      reduced oxidative stress, fibrosis, and inflammation which contribute to the pathogenesis of androgen deprivation\u2010induced ED, however the effect of SO\n                      <jats:sub>2<\/jats:sub>\n                      donors on ED in castrated rats were not known.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>\n                      To investigate the therapeutic effect of SO\n                      <jats:sub>2<\/jats:sub>\n                      donors, Na\n                      <jats:sub>2<\/jats:sub>\n                      SO\n                      <jats:sub>3<\/jats:sub>\n                      \/NaHSO\n                      <jats:sub>3<\/jats:sub>\n                      , on ED in castrated rat model.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Materials and methods<\/jats:title>\n                    <jats:p>\n                      Sprague\u2013Dawley male rats (\n                      <jats:italic>n<\/jats:italic>\n                      \u00a0=\u00a030) were divided into four groups; control, control\u2010treated with Na\n                      <jats:sub>2<\/jats:sub>\n                      SO\n                      <jats:sub>3<\/jats:sub>\n                      \/NaHSO\n                      <jats:sub>3<\/jats:sub>\n                      , castrated, and castrated\u2010treated with Na\n                      <jats:sub>2<\/jats:sub>\n                      SO\n                      <jats:sub>3<\/jats:sub>\n                      \/NaHSO\n                      <jats:sub>3<\/jats:sub>\n                      . Castration was induced by bilateral scrotal incisions. Four weeks after castration, rats were treated with Na\n                      <jats:sub>2<\/jats:sub>\n                      SO\n                      <jats:sub>3<\/jats:sub>\n                      \/NaHSO\n                      <jats:sub>3<\/jats:sub>\n                      (0.54\/0.18\u00a0mmol\/kg) intraperitoneally (i.p.) for 4 weeks. Intracavernosal pressure\/mean arterial pressure ratio (ICP\/MAP) and total ICP were measured to evaluate in vivo erectile responses in cavernosal tissue. In vitro relaxant and contractile responses were measured in all groups. Endothelial nitric oxide synthase (eNOS), neuronal NOS (nNOS), PI3 kinase p85 alpha + gamma (PI3K), protein kinase B (AKT 1\/2\/3), cysteine dioxygenase\u20101 (CDO), and aspartate aminotransferase (AAT) expressions and localizations were evaluated by Western blotting and immunohistochemical staining. The smooth muscle\/collagen ratio was evaluated by Masson's trichrome staining.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Prostate (\n                      <jats:italic>p<\/jats:italic>\n                      \u00a0&lt;\u00a00.001) and penis weight (\n                      <jats:italic>p<\/jats:italic>\n                      \u00a0&lt;\u00a00.001), total serum testosterone (T) level (\n                      <jats:italic>p<\/jats:italic>\n                      \u00a0&lt;\u00a00.001), and in vivo erectile responses (\n                      <jats:italic>p<\/jats:italic>\n                      \u00a0&lt;\u00a00.001 at 7.5 and 5\u00a0V,\n                      <jats:italic>p<\/jats:italic>\n                      \u00a0&lt;\u00a00.05 at 2.5\u00a0V for ICP\/MAP and total ICP) of castrated rats were decreased compared with control. SO\n                      <jats:sub>2<\/jats:sub>\n                      donors improved reduced ICP\/MAP ratio and total ICP (\n                      <jats:italic>p<\/jats:italic>\n                      \u00a0&lt;\u00a00.01 at 7.5, 5, and 2.5\u00a0V for ICP\/MAP and total ICP) nitrergic (\n                      <jats:italic>p<\/jats:italic>\n                      \u00a0&lt;\u00a00.05 at 20\u00a0Hz), and endothelium\u2010independent relaxation (\n                      <jats:italic>p<\/jats:italic>\n                      \u00a0&lt;\u00a00.05 at 1\u00a0nM,\n                      <jats:italic>p<\/jats:italic>\n                      \u00a0&lt;\u00a00.01 at 10\u00a0\u00b5M and 100\u00a0\u00b5M) in the castrated group. Decreased eNOS (\n                      <jats:italic>p<\/jats:italic>\n                      \u00a0&lt;\u00a00.01) and AKT (\n                      <jats:italic>p<\/jats:italic>\n                      \u00a0&lt;\u00a00.001) protein expressions in the castrated group were normalized by SO\n                      <jats:sub>2<\/jats:sub>\n                      . SO\n                      <jats:sub>2<\/jats:sub>\n                      donors partially restored the reduced smooth muscle\/collagen ratio in the castrated group (\n                      <jats:italic>p<\/jats:italic>\n                      \u00a0&lt;\u00a00.001). The expressions and locations of nNOS, PI3K, CDO, and AAT proteins in penile tissue did not alter among all groups (\n                      <jats:italic>p<\/jats:italic>\n                      \u00a0&gt;\u00a00.05).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Discussion and conclusion<\/jats:title>\n                    <jats:p>\n                      SO\n                      <jats:sub>2<\/jats:sub>\n                      donors significantly improve erectile functions and relaxation responses in a castrated rats via ameliorating endothelial damage and fibrosis. Androgen deprivation inhibits the AKT\/eNOS signaling while SO\n                      <jats:sub>2<\/jats:sub>\n                      activates this pathway. SO\n                      <jats:sub>2<\/jats:sub>\n                      donors may be promising for the treatment of ED in hypoandrogenic men.\n                    <\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/andr.13839","type":"journal-article","created":{"date-parts":[[2025,1,9]],"date-time":"2025-01-09T01:34:21Z","timestamp":1736386461000},"page":"2282-2293","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Sulfur dioxide (SO\n                    <sub>2<\/sub>\n                    ) donors, a new gasotransmitter, improve erectile dysfunction after castration in a rat model"],"prefix":"10.1111","volume":"13","author":[{"given":"Seyma","family":"Tetik\u2010Rama","sequence":"first","affiliation":[{"name":"Department of Pharmacology, Faculty of Pharmacy Ankara University Ankara Turkey"},{"name":"Department of Pharmacology, Faculty of Pharmacy Selcuk University Konya Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Didem","family":"Yilmaz\u2010Oral","sequence":"additional","affiliation":[{"name":"Department of Pharmacology, Faculty of Pharmacy Cukurova University Adana Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Damla","family":"Turkcan","sequence":"additional","affiliation":[{"name":"Department of Pharmacology, Faculty of Pharmacy Ankara University Ankara Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Cetin Volkan","family":"Oztekin","sequence":"additional","affiliation":[{"name":"Department of Urology, Faculty of Medicine Kyrenia University Mersin Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Omer Faruk","family":"Kirlangic","sequence":"additional","affiliation":[{"name":"Vocational School of Health Sciences, Health Service Ankara University Ankara Turkey"},{"name":"Department of Medical Biochemistry, Faculty of Medicine Gazi University Ankara Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fatma Zeynep","family":"Kirlangic","sequence":"additional","affiliation":[{"name":"Department of Pathology, Faculty of Medicine Amasya University Amasya Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Serap","family":"Gur","sequence":"additional","affiliation":[{"name":"Department of Pharmacology, Faculty of Pharmacy Ankara University Ankara 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