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Urodynamic Characteristics of Awake Rats under Retrained versusFreely Moving Condition：Using a Novel Model

Journal of Huazhong University of Science and Technology(Medical Sciences) 2016年第2期36卷 226-230页

作者：陈彪章慧平田渤臻袁红方叶章群黄骁燕 Department of Urology Tongji Hospital Tongji Medical College Huazhong University of Science and Technology wuhan 430030 China Institute of Urology Tongji Hospital Tongji Medical CollegeHuazhong University of Science and Technology Wuhan 430030 China Institute of Family Planning Research Center of Reproductive Medicine TongJi Medical College Huazhong University of Science and Technology Wuhan 430030 China Department of General Medicine Tongji Hospital Tongji Medical CollegeHuazhong University of Science and Technology Wuhan 430030 China

Urodynamic investigation in conscious rats is widely employed to explore functional bladder disorders of various etiologies and pathogeneses. Rats can be placed in restraining cages or wide cabinets where they are allowed to move freely during cystometry. However, the requirements of special devices hampered the application of urodynamic test in freely moving rats, and whether the restraint has any effects on urodynamic parameters in conscious rats remains obscure. In the present study, we described a novel approach for urodynamic investigation in both restrained and freely moving conscious rats. In addition, we for the first time systematically compared the urodynamic parameters of rats in the two conditions. With the current method, we successfully recorded stable and repeatable intravesical pressure traces and collected expected reliable data, which supported the idea that the restraint does not affect the activity of the micturition reflex in rats, provided sufficient and appropriate measures could be applied during cystometry. Fewer technique problems were encountered during urodynamic examination in restrained rats than in freely moving ones. Taken together, conscious cystometry in rats placed in restraining cages with proper managements is a reliable and practical approach for evaluating the detrusor activity and bladder function.

关键词： urodynamics cystometry bladder function rat restraint

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