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Phenotypic modulation of bladder smooth muscle in diabetic rats / 南方医科大学学报
Journal of Southern Medical University ; (12): 520-524, 2016.
Article in Chinese | WPRIM | ID: wpr-264011
ABSTRACT
<p><b>OBJECTIVE</b>To investigate whether phenotypic modulation of bladder smooth muscle occurs in diabetic rats.</p><p><b>METHODS</b>Thirty-two male SD rats were randomly assigned into diabetic group and control group. Diabetic rat models were established by a single intraperitoneal injection of streptozotocin (60 mg/kg). Nine weeks later, the bladder tissues of the rats were examined for structural changes using HE and Masson's trichrome staining , and the expressions of myocardin, α-SMA, and SMMHC in bladder smooth muscles were detected with RT-PCR and Western blotting.</p><p><b>RESULTS</b>Compared with the control group, the diabetic rats showed obvious polydipsia and polyuria with significantly increased collagenous fibers and lowered expressions of myocardin, α-SMA, and SMMHC in the bladder tissue (P<0.05).</p><p><b>CONCLUSION</b>s In rats at 9 weeks after diabetic model establishment, phenotypic transition of the bladder smooth muscles occurs to cause bladder contractile dysfunction, which may play an important role in the pathology of diabetic bladder dysfunction.</p>
Subject(s)
Full text: Available Index: WPRIM (Western Pacific) Main subject: Phenotype / Urinary Bladder / Nuclear Proteins / Trans-Activators / Actins / Rats, Sprague-Dawley / Streptozocin / Myosin Heavy Chains / Diabetes Mellitus, Experimental / Metabolism Type of study: Prognostic study Limits: Animals Language: Chinese Journal: Journal of Southern Medical University Year: 2016 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Phenotype / Urinary Bladder / Nuclear Proteins / Trans-Activators / Actins / Rats, Sprague-Dawley / Streptozocin / Myosin Heavy Chains / Diabetes Mellitus, Experimental / Metabolism Type of study: Prognostic study Limits: Animals Language: Chinese Journal: Journal of Southern Medical University Year: 2016 Type: Article