Lin Zhang

Chengdu Military General Hospital, Hua-yang, Sichuan, China

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Publications (6)9.09 Total impact

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    ABSTRACT: Background Electroacupuncture (EA) is one of the techniques of acupuncture and is believed to be an effective alternative and complementary treatment in many disorders. The aims of this study were to investigate the effects and mechanisms of EA at acupoint Zusanli (ST36) on the plasticity of interstitial cells of Cajal (ICCs) in partial bowel obstruction. Methods A Sprague Dawley rat model of partial bowel obstruction was established and EA was conducted at Zusanli (ST36) and Yinglingquan (SP9) in test and control groups, respectively. Experiments were performed to study the effects and mechanisms of EA at Zusanli on intestinal myoelectric activity, distribution and alteration of ICCs, expression of inflammatory mediators, and c-Kit expression. Results 1) EA at Zusanli somewhat improved slow wave amplitude and frequency in the partial obstruction rats. 2) EA at Zusanli significantly stimulated the recovery of ICC networks and numbers. 3) the pro-inflammatory mediator TNF-α and NO activity were significantly reduced after EA at Zusanli, However, no significant changes were observed in the anti-inflammatory mediator IL-10 activity. 4) EA at Zusanli re-expressed c-Kit protein. However, EA at the control acupoint, SP9, significantly improved slow wave frequency and amplitude, but had no effect on ICC or inflammatory mediators. Conclusions We concluded that EA at Zusanli might have a therapeutic effect on ICC plasticity, and that this effect might be mediated via a decrease in pro-inflammatory mediators and through the c-Kit signaling pathway, but that the relationship between EA at different acupoints and myoelectric activity needs further study.
    Preview · Article · Jun 2014 · BMC Complementary and Alternative Medicine
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    ABSTRACT: Urinary function can be protected following open lateral node dissection (LND) with pelvic autonomic nerve preservation (PANP) for advanced rectal cancer. However data regarding urinary function after laparoscopic LND with PANP have not been reported. The goal of this study was to determine the effects of laparoscopic LND with PANP on urinary function in male patients with rectal cancer. Urine flowmetry was performed using an Urodyn flowmeter. Patients were also asked to complete the standardized International Prostate Symptom Score (IPSS) questionnaire before surgery and 6 months after. In total, this study consisted of 60 males with advanced rectal cancer. No significant differences were seen in maximal urinary flow rate, voided volume or residual volume before and after surgery. The total IPSS score increased significantly after surgery and at least 41 patients (68.3%) reported there was no change in one of the seven IPSS questions. Laparoscopic LND with PANP was relatively safe in preserving urinary function.
    Full-text · Article · Nov 2013 · PLoS ONE

  • No preview · Article · Jan 2013 · Case Reports in Clinical Medicine
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    ABSTRACT: To evaluate the short-term outcomes after hand-assisted laparoscopic radical gastrectomy. Between June 2010 and May 2011, a series of 15 patients underwent hand-assisted laparoscopic gastrectomy(HG), 16 patients underwent laparoscopic gastrectomy(LP), and 11 patients underwent open gastrectomy(OP). Short-term outcomes included operative time, blood loss, lymph nodes harvested, and the length of incision were collected after operation. The operative time was 150-200 min in HG, 180-220 min in LP, and 150-200 min in OP respectively. The time of laparoscopic procedure was 18-58 and 70-100 min respectively. The average incision length was 6.8 cm in HG, 5.6 cm in LP, and 13.5 cm in OP. The average number of lymph nodes harvested was 17.6, 15.1 and 16.4 respectively. The average estimated blood loss was 228 ml, 278 ml, and 427 ml respectively. The mean length of hospital stay was 9.9, 10.8, and 12.4 d. No anastomotic leakage, bleeding, or gastric paralysis were found. One wound infection case was found in OP. Hand-assisted laparoscopic gastrectomy is in concordance with the standardized treatment protocol for gastric cancer. Lymph node dissection is easier by HG, therefore HG can be an alternative for the radical resection of gastric cancer.
    No preview · Article · Jul 2012 · Zhonghua wei chang wai ke za zhi = Chinese journal of gastrointestinal surgery
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    ABSTRACT: To investigate the possible reasons and suggest therapeutic plan of stress-induced intestinal necrosis resulting from the severe trauma. Three patients in our study were trapped inside collapsed structures for 22, 21 and 37 h, respectively. The patients underwent 3-4 operations after sustaining their injuries. Mechanical ventilation, intermittent hemodialysis and other treatments were also provided. The patients showed signs of peritoneal irritation on postoperative days 10-38. Small intestinal necrosis was confirmed by emergency laparotomy, and for each patient, part of the small bowel was removed. Two patients who all performed 3 operations died of respiratory complications on the first and second postoperative days respectively. The third patient who performed 4 operations was discharged and made a full recovery. Three patients had the following common characteristics: (1) Multiple severe trauma events with no direct penetrating gastrointestinal injury; (2) Multiple surgeries with impaired renal function and intermittent hemodialysis treatment; (3) Progressive abdominal pain and tenderness, and peritoneal irritation was present on post-traumatic days 10-38; (4) Abdominal operations confirmed segment ulcer, necrosis of the small intestine, hyperplasia and stiffness of the intestinal wall; and (5) Pathological examinations suggested submucosal hemorrhage, necrosis, fibrosis and hyalinization of the vascular wall. Pathological examinations of all 3 patients suggested intestinal necrosis with fistulas. Intestinal necrosis is strongly associated with stress from trauma and post-traumatic complications; timely exploratory laparotomy maybe an effective method for preventing and treating stress-induced intestinal necrosis.
    Full-text · Article · May 2012 · World Journal of Gastroenterology
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    ABSTRACT: The vascular endothelial growth factor (VEGF) is an endothelial cell-specific mitogen involved in the process of angiogenesis, a crucial phase in tumor growth and metastasis. We carried out a case-control study to evaluate whether VEGF -2578C/A gene polymorphism modulates the risk of developing colon cancer. A total of 110 colon cancer patients and 110 cancer-free healthy people were recruited in the Chinese population. Genomic DNA was isolated from peripheral blood, and gene polymorphisms were analyzed by polymerase chain reaction-restriction fragment length polymorphism. Colon cancer patients had a significantly higher frequency of VEGF -2578AA genotype (odds ratio=2.49; 95% confidence interval=1.04, 6.01; p=0.04) than controls. Patients with left colon cancer had a significantly higher frequency of VEGF -2578AA genotype (odds ratio=2.31; 95% confidence interval=1.03, 5.18; p=0.04) than those with right colon cancer. When stratified by tumor size, growth pattern, differentiation, and stage of colon cancer, no statistically significant results were observed. This study suggested that VEGF -2578AA genotype was associated with a higher risk of colon cancer in Chinese population. Further studies are needed to understand the mechanism of VEGF gene polymorphisms in the development and progression of colon cancer.
    No preview · Article · Nov 2010 · Genetic Testing and Molecular Biomarkers