{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,5,14]],"date-time":"2025-05-14T01:42:21Z","timestamp":1747186941929,"version":"3.40.5"},"reference-count":32,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2020,10,21]],"date-time":"2020-10-21T00:00:00Z","timestamp":1603238400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["LUTS"],"published-print":{"date-parts":[[2021,4]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objective<\/jats:title><jats:p>To develop a new mouse model of underactive bladder (UAB) caused by chronic bladder outlet obstruction (BOO).<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>BOO was created in 6\u2010week\u2010old male C57BL\/6 mice using surgery to loosely place a silver jump ring around the bladder neck of each mouse. Micturition behavior (assessed with a metabolic cage) and cystometry were used to evaluate bladder function at 8 and 16\u2009weeks after BOO. Following completion of the functional studies, the bladders of the mice were excised, weighed, and subjected to histological analysis.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Micturition behavior analysis showed that mice subjected to BOO for 16\u2009weeks had a lower frequency of micturition (7.3\u2009\u00b1\u20091.1 vs 12.5\u2009\u00b1\u20093.0 times\/d, <jats:italic>P<\/jats:italic>\u2009&lt;\u2009.05) and volume per void (106.0\u2009\u00b1\u20090.1 vs 133.9\u2009\u00b1\u20093.2\u2009\u03bcL, <jats:italic>P<\/jats:italic>\u2009&lt;\u2009.05) than mice subjected to BOO for 8\u2009weeks. Cystometry revealed that mice subjected to BOO for 16\u2009weeks had lower baseline pressure (8.4\u2009\u00b1\u20090.6 vs 14.0\u2009\u00b1\u20090.7 cmH<jats:sub>2<\/jats:sub>O, <jats:italic>P<\/jats:italic>\u2009&lt;\u2009.01) and micturition pressure (13.9\u2009\u00b1\u20091.1 vs 42.8\u2009\u00b1\u20091.7 cmH<jats:sub>2<\/jats:sub>O, <jats:italic>P<\/jats:italic>\u2009&lt;\u2009.05) than mice subjected to BOO for 8\u2009weeks. BOO caused progressive increases in bladder mass and collagen deposition over time.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>We successfully established a novel mouse model of UAB using surgery to place a silver jump ring loosely on the bladder neck. BOO initially induced bladder overactivity but subsequently resulted in UAB due to deterioration of detrusor smooth muscle contractility and progressive deposition of collagen in the bladder wall.<\/jats:p><\/jats:sec>","DOI":"10.1111\/luts.12359","type":"journal-article","created":{"date-parts":[[2020,10,22]],"date-time":"2020-10-22T03:32:02Z","timestamp":1603337522000},"page":"299-307","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["New mouse model of underactive bladder developed by placement of a metal ring around the bladder neck"],"prefix":"10.1111","volume":"13","author":[{"given":"Kareman","family":"Eljamal","sequence":"first","affiliation":[{"name":"Department of Clinical Pharmacology Graduate School of Medical Sciences, Kyushu University  Fukuoka 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