Effect of Intestinal Ischemia-reperfusion Injury on the Expression of Chemerin in Mice / 中国医学科学院学报

<p><b>OBJECTIVE</b>To investigate the effect of intestinal ischemia-reperfusion on the protein expression of chemerin in C57BL/6J mice.</p><p><b>METHODS</b>A total of 16 mice (C57BL/6J, specific pathogen free level) were randomly assigned into two groups (n=8 each): the intestinal ischemia-reperfusion group and the sham group. The intestinal ischemia-reperfusion state was achieved by blocking the super-mesenteric artery. After 60 minutes of ischemia followed by 60 minutes of reperfusion,we determined the protein level of chemerin in various organs and tissues by enzyme-linked immunosorbent assay and Western blot. The sham group underwent the same operation process except for the blocking of the super-mesenteric artery.</p><p><b>RESULT</b>The protein level of chemerin was significantly elevated in distinctive organs and tissues in the state of intestinal ischemia-reperfusion (P<0.05).</p><p><b>CONCLUSION</b>The intestinal ischemia-reperfusion can remarkably increase the protein expression of chemerin in some organs and tissues.</p>

The operative technique selection of lung transplantation for end-stage emphysema / 中华外科杂志

<p><b>OBJECTIVE</b>To investigate the operation of lung transplantation for end-stage emphysema.</p><p><b>METHODS</b>From September 2002 to February 2005, 9 patients with chronic obstructive pulmonary disease (COPD) underwent lung transplantation. The types of surgery included single lung transplantation in 2 patients, lung transplantation with asynchronous contralateral lung volume reduction (one week later) in 1, single lung transplantation with synchronized contralateral lung volume reduction in 4, and bilateral sequential lung transplantation without cardiopulmonary bypass in 2.</p><p><b>RESULTS</b>The volume of chest drainage was more than 2000 ml at the first postoperative day in 2 patients, one was reoperated for hemostasis and another was successfully responded to conservative therapy. The ventilation time was ranged from 3 to 22 days postoperatively. Two patients were received tracheotomy. Seven patients achieved good results, two of them had returned to work, and 1 patient had lived for 30 months. One patient was died of severe acute rejection (4A) at 15th postoperative day and 1 succumbed to multisystem organ failure due to severe bacterial infection combine fungal infection.</p><p><b>CONCLUSION</b>End-stage emphysema is an indication for single lung transplantation. Single lung transplantation with contralateral lung volume reduction is a good way to utilize donor. If patient suffered from infection, double-lung transplantation should be considered first.</p>

Single-lung transplantation for end-stage emphysema / 中华外科杂志

<p><b>OBJECTIVE</b>To evaluate operative technique, patient selection and perioperative management of single-lung transplantation for a patients with end-stage emphysema.</p><p><b>METHODS</b>A 56-year-old patient with end-stage emphysema underwent left-lung transplantation on September 28, 2002. The surgical technique used was similar to that mentioned in the literature. The donor lung was perfused by LPD solution with a cold ischemic time of 260 minutes. Cardiopulmonary bypass was not performed.</p><p><b>RESULTS</b>The patient weaned from a ventilator at the 93th hour after operation. Immunosuppressants included cyclosporine, mycophenolate mofetil and corticosteroid. Acute rejection occurred on the ninth day after operation and was cured by bolus methylprednisolone given intravenously. Lung function was improved significantly and the patient was discharged from the hospital on the 47th day after operation.</p><p><b>CONCLUSION</b>Single-lung transplantation for patients with end-stage emphysema is effective for long-term improvement of pulmonary function.</p>