Chuanjiang Dong

China Three Gorges University, Tung-hu, Hubei, China

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Publications (4)5.64 Total impact

  • Zhou Shen · Zili Pang · Renfeng Jia · Xinchao Wu · Chuanjiang Dong · Wansheng Gao · Di Liu · Bing Li
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    ABSTRACT: Objective: To investigate the feasibility of erectile function restoration by genital branch of genitofemoral nerve (GN) to cavernous nerve (CN) transfer in rats. Materials and methods: Thirty adult (3 months) male Sprague-Dawley rats were divided into 3 groups (n = 10 per group). Rats in sham group underwent sham operation, rats in nerve resection (NR) group underwent bilateral GN and CN resection to make a 2.5-mm gap, and rats in nerve transfer (NT) group underwent nerve anastomosis bilaterally between proximal stump of GN and distal stump of CN after nerve resection. Results: Three months postoperatively, mating test observed 70% rats with intromission behaviors in NT group but only 10% rats in NR group. Electrostimulating the GN of NT group rats resulted in a significant increase in intracavernous pressure, and the ratio of intracavernous pressure increase to mean arterial pressure in NT group was significantly higher than that in NR group. Seven days after Fluoro-Gold injection into the penile crus, Fluoro-Gold-labeled neurons were found in ventral horn of L1 and L2 in NT group, indicating that a new erectile efferent pathway might be established. Axon counting and ultrastructure observation confirmed axonal regeneration in NT group. Furthermore, NT group had a higher expression of nitric oxide synthase in the dorsal penile nerve than that in NR group. Conclusion: The results have demonstrated that nerve regeneration can be obtained, and erectile function may be restored after GN to CN nerve transfer in bilateral CN resection rats, which provides an innovative and promising treatment for neurogenic erectile dysfunction.
    No preview · Article · Oct 2014 · Urology
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    Chuanjiang Dong · Ziqiang Dong · Fei Xiong · Zonglan Xie · Qiaoli Wen
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    ABSTRACT: Penile strangulation is a challenge to urologists. The decompression of the penis is required to prevent long-term complications. Metal objects are difficult to remove. Cutting is the most common method described. Appropriate cutting tools may be difficult to obtain, and the process may be time-consuming with the possibility of iatrogenic penile injury. In this paper, we will present a simple method to remove such objects by use a silk winding method and subcutaneous puncture.
    Preview · Article · Oct 2013
  • Chuanjiang Dong · Wansheng Gao · Renfeng Jia · Shuqiang Li · Zhou Shen · Bing Li
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    ABSTRACT: BACKGROUND: End-to-side nerve repair is a new tool in managing certain nerve injuries. In previous studies, it was limited to somatic nerves. Herein, we evaluate the feasibility of anorectal reinnervation after end-to-side coaptation of autonomic nerve to somatic nerve. MATERIALS AND METHODS: Forty adult male Sprague-Dawley rats were randomly divided into three groups: end-to-side coaptation group (n = 16), the left L6 and S1 spinal nerves were transected, and the distal stump of L6 ventral root (L6VR) was sutured to L4VR (L4VR) through end-to-side neurorrhaphy; no coaptation group (n = 12), rats received the same operation as the end-to-side coaptation group but without coaptation; and control group (n = 12), rats received the same operation as the end-to-side coaptation group but the L6VR was preserved. At 16 wk, using double retrograde tracing and histomorphological technique and anorectal manometry, morphological and functional properties of regenerated nerve were investigated. RESULTS: Retrograde tracing indicated that the new neural pathway was established and the main nerve regeneration mechanism was axon collateral sprouting. Histology showed good axonal regeneration with end-to-side neurorrhaphy. The wet weight and morphology of left tibialis anterior muscles appeared no detrimental effect on donor nerve. Anorectal manometry showed good anorectal functional recovery. CONCLUSIONS: These results suggest that the somatic motor axon ingrowth into autonomic nerve could be through collateral sprouting after end-to-side coaptation of autonomic nerve to somatic nerve. Our innovative technique of end-to-side coaptation may be of great value in anorectal reinnervation without functional impairment of the donor somatic nerve.
    No preview · Article · Apr 2012 · Journal of Surgical Research
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    ABSTRACT: Primary bladder neck obstruction (PBNO) is a nonneurogenic voiding disorder and frequently overlooked in young men. Prior studies have reported the efficacy of α-blockers only in the short-term for male patients with PBNO. We hereby report our long-term results using α1-blocker therapy in young men with PBNO. Between January 2005 and December 2009, PBNO was diagnosed in 30 young men (mean age 27.3 years, range 18-35) at our institution. Doxazosin 4 mg once daily was administered for at least 12 months. Safety and tolerability were assessed, and efficacy was evaluated from International Prostate Symptom Score (I-PSS), Quality of Life (QOL), uroflowmetry, and post-void residual following 3- and 12-month treatment. Successful treatment was defined as at least 3 ml per second increase in the maximum flow rate and more than a 40% decrease in I-PSS. In all 30 patients, Mean symptom duration was 26.4 (3-65) months. The most common symptoms were hesitancy (93.3%), weak stream (76.7%), and frequency (66.7%). A total of 24 patients (80%, 24/30) successfully completed the 12 month of treatment. The medication period was 15.2 months, and follow-up duration was 16.3 months. Doxazosin was safe and well tolerated. The efficacy of doxazosin was maintained over the 12-month treatment period. Relative to baseline, there were reductions in the number of mean I-PSS (from 17.7 ± 4.2 to 10.4 ± 4.8), mean QOL (from 4.2 ± 1.1 to 2.4 ± 1.3), and mean post-void residual urine (from 79.3 ± 33.4 to 47.1 ± 21.3), and an increase in mean maximum flow rate (from 11.4 ± 2.9 to 15.1 ± 3.2 ml) after 12-month treatment. Treatment was successful in 16 patients (66.7%, 16/24) according to the improvement in both symptoms and maximum urine flow. α1-blocker therapy displayed a favorable safety, tolerability, and efficacy profile during 12-month treatment in young male patients with PBNO.
    No preview · Article · Dec 2011 · International Urology and Nephrology

Publication Stats

12 Citations
5.64 Total Impact Points


  • 2013-2014
    • China Three Gorges University
      Tung-hu, Hubei, China
  • 2011-2012
    • Huazhong University of Science and Technology
      • Department of Urology
      Wu-han-shih, Hubei, China