{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T20:39:48Z","timestamp":1777927188985,"version":"3.51.4"},"reference-count":58,"publisher":"SAGE Publications","issue":"6","license":[{"start":{"date-parts":[[2021,2,26]],"date-time":"2021-02-26T00:00:00Z","timestamp":1614297600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Journal of Neurotrauma"],"published-print":{"date-parts":[[2021,3]]},"abstract":"<jats:p>\n                    Traumatic spinal cord injury (SCI) often causes micturition dysfunction. We recently discovered a low level of spinally-derived dopamine (DA) that regulates recovered bladder and sphincter reflexes in SCI female rats. Considering substantial sexual dimorphic features in the lower urinary tract, it is unknown if the DA-ergic mechanisms act in the male. Histological analysis showed a similar distribution of tyrosine hydroxylase (TH)\n                    <jats:sup>+<\/jats:sup>\n                    neurons in the lower cord of male rats and the number increased following thoracic SCI. Subsequently, focal electrical stimulation in slices obtained from L6\/S1 spinal segments of SCI rats elicited detectable DA release with fast scan cyclic voltammetry. Using bladder cystometrogram and external urethral sphincter (EUS) electromyography in SCI male rats, intravenous (i.v.) administration of SCH 23390, a D\n                    <jats:sub>1<\/jats:sub>\n                    -like receptor (DR\n                    <jats:sub>1<\/jats:sub>\n                    ) antagonist, induced significantly increased tonic EUS activity and a trend of increased residual volume, whereas activation of these receptors with SKF 38393 did not influence the reflex. Meanwhile, blocking spinal D\n                    <jats:sub>2<\/jats:sub>\n                    -like receptors (DR\n                    <jats:sub>2<\/jats:sub>\n                    ) with remoxipride had no effect but stimulating these receptors with quinpirole elicited EUS bursting to increase voiding volume. Further, intrathecal delivery of SCH 23390 and quinpirole resulted in similar responses to those with i.v. delivery, respectively, which indicates the central action regardless of delivery route. In addition, metabolic cage assays showed that quinpirole increased the voiding frequency and total voiding volume in spontaneous micturition. Collectively, spinal DA-ergic machinery regulates recovered micturition reflex following SCI in male rats; spinal DR\n                    <jats:sub>1<\/jats:sub>\n                    tonically suppress tonic EUS activity to enable voiding and activation of DR\n                    <jats:sub>2<\/jats:sub>\n                    facilitates voiding.\n                  <\/jats:p>","DOI":"10.1089\/neu.2020.7284","type":"journal-article","created":{"date-parts":[[2020,12,10]],"date-time":"2020-12-10T03:10:05Z","timestamp":1607569805000},"page":"803-817","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":18,"title":["Spinal Dopaminergic Mechanisms Regulating the Micturition Reflex in Male Rats with Complete Spinal Cord Injury"],"prefix":"10.1177","volume":"38","author":[{"given":"Yuan","family":"Qiao","sequence":"first","affiliation":[{"name":"Department of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, Pennsylvania, USA."},{"name":"Department of Anatomy, Shandong University School of Basic Medical Sciences, Ji'nan, China."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zachary D.","family":"Brodnik","sequence":"additional","affiliation":[{"name":"Department of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, Pennsylvania, USA."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shunyi","family":"Zhao","sequence":"additional","affiliation":[{"name":"Department of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, Pennsylvania, USA."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Cameron T.","family":"Trueblood","sequence":"additional","affiliation":[{"name":"Department of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, Pennsylvania, USA."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhenzhong","family":"Li","sequence":"additional","affiliation":[{"name":"Department of Anatomy, Shandong University School of Basic Medical Sciences, Ji'nan, China."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Veronica J.","family":"Tom","sequence":"additional","affiliation":[{"name":"Department of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, Pennsylvania, USA."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rodrigo A.","family":"Espa\u00f1a","sequence":"additional","affiliation":[{"name":"Department of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, Pennsylvania, USA."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shaoping","family":"Hou","sequence":"additional","affiliation":[{"name":"Department of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, Pennsylvania, USA."}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2021,2,26]]},"reference":[{"key":"e_1_3_4_2_2","first-page":"493","article-title":"Mechanisms underlying the recovery of lower urinary tract function following spinal cord injury","volume":"33","author":"de Groat W.C.","year":"1995","unstructured":"de Groat W.C. 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