Systemic Inflammatory Biomarkers, Especially Fibrinogen to Albumin Ratio, Predict Prognosis in Patients with Pancreatic Cancer / Journal of the Korean Cancer Association, 대한암학회지

Purpose@#Systemic inflammatory response is a critical factor that promotes the initiation and metastasis of malignancies including pancreatic cancer (PC). This study was designed to determine and compare the prognostic value of neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), monocyte-to-lymphocyte ratio (MLR), and fibrinogen-to-albumin ratio (FAR) in resectable PC and locally advanced or metastatic PC. @*Materials and Methods@#Three hundred fifty-three patients with resectable PC and 807 patients with locally advan-ced or metastatic PC were recruited in this study. These patients were classified into a training set (n=758) and a validation set (n=402). Kaplan-Meier survival plots and Cox proportional hazards regression models were used to analyze prognosis. @*Results@#Overall survival (OS) was significantly better for patients with resectable PC with low preoperative PLR (p=0.048) and MLR (p=0.027). Low FAR, MLR, NLR (p < 0.001), and PLR (p=0.003) were significantly associated with decreased risk of death for locally advanced or metastatic PC patients. FAR (hazard ratio [HR], 1.522; 95% confidential interval [CI], 1.261 to 1.837; p < 0.001) and MLR (HR, 1.248; 95% CI, 1.017 to 1.532; p=0.034) were independent prognostic factors for locally advanced or metastatic PC. @*Conclusion@#The prognostic roles of FAR, MLR, NLR, and PLR in resectable PC and locally advanced or metastatic PC were different. FAR showed the most prognostic power in locally advanced or metastatic PC. Low FAR was positively correlated with OS in locally advanced or metastatic PC, which could be used to predict the prognosis.

Association of peripheral blood hypoxia-inducible factor-1α with metastasis of colorectal cancer / 南方医科大学学报

<p><b>OBJECTIVE</b>To explore the relationship between hypoxia-inducible factor-1α (HIF-1α) mRNA levels in the peripheral blood and the metastasis of colorectal cancer.</p><p><b>METHODS</b>HIF-1α mRNA in the peripheral blood was detected by RT-PCR in 40 patients with colorectal cancer and 20 healthy subjects.</p><p><b>RESULTS</b>Seventeen patients with colorectal cancer showed positivity for HIF-1α mRNA, showing a significantly higher positivity rate (42.5%) than the healthy subjects (P<0.05). The expression of HIF-1α mRNA is closely related to the staging of colorectal cancer (CRC).</p><p><b>CONCLUSION</b>HIF-1α mRNA may serve as a potential marker in the detection of metastasis of colorectal cancer.</p>

Clinical analysis of 286 cases of abdominal trauma with gastrointestinal tract laceration / 南方医科大学学报

<p><b>OBJECTIVE</b>To improve the diagnosis and treatment of abdominal injury.</p><p><b>METHODS</b>The clinical data of 286 patients with gastrointestinal tract laceration admitted between 2004 and 2009 to our hospital was analyzed.</p><p><b>RESULTS</b>The duration after trauma was 15 min to 2 days. Of the 286 patients eventually confirmed by laparotomy, 273 were cured, 3 showed improvement and 10 died.</p><p><b>CONCLUSION</b>Abdominal trauma in patients with gastrointestinal tract laceration, Abdominal puncture diagnosis and orthostatic abdominal X-ray are rapid and effective diagnostic methods for gastrointestinal tract laceration in patients with abdominal trauma. Laparotomy is the primary treatment measures and should be performed as early as possible.</p>

Application of intraoperative colon irrigation in primary resection and anastomosis of left colorectal cancer with intestinal obstruction / 南方医科大学学报

<p><b>OBJECTIVE</b>To study the application of intraoperative irrigation of the colon in primary resection and anastomosis of left colorectal cancer with intestinal obstruction.</p><p><b>METHODS</b>The clinical data were analyzed in 58 patients with left colon rectal cancer and intestinal obstruction undergoing intraoperative irrigation of the colon for primary anastomosis, and the results were compared with 58 patients receiving conventional primary tumor resection.</p><p><b>RESULTS</b>The mean intraoperative blood loss or postoperative hospital stay was comparable between the two groups, but the patients undergoing colon irrigation had significantly delays in the recovery of bowel movement.</p><p><b>CONCLUSION</b>With strict control of the surgery indication, intraoperative colon irrigation can be safe and feasible in primary resection and anastomosis of left colorectal cancer with intestinal obstruction.</p>

Preparation and functional identification of testicular Sertoli cells / 南方医科大学学报

<p><b>OBJECTIVE</b>To simplify the method for separation and cultivation of rat testicular Sertoli cells with high viability, quantity and expression efficiency.</p><p><b>METHODS</b>Testicular Sertoli cells from 2 to 3-week-old male Wistar rats were prepared by digestion with collagenase, trypsin and DNase and cultured together with active lymphocytes to observe their killing effect against lymphocytes. After cell culture for 72 h, the Sertoli cells were morphologically observed by different means and identified with transmission electron microscope. Fas ligand and follicle-stimulating hormone receptor (FSHR) were examined immunohistochemically to identify testicular Sertoli cells. SABC method was used for labeling the Fas ligand on the testicular Sertoli cells.</p><p><b>RESULTS</b>The viability of the isolated and cultured Sertoli cells was more than 90%, and in in vitro culture, Sertoli cells, which expressed the Fas ligand, could kill the active lymphocytes.</p><p><b>CONCLUSION</b>This method improves the efficiency in acquisition of rat testicular Sertoli cells expressing Fas ligand, which are believed to be a potential donor for co-transplantation with parathyroid cells to offer immune privilege.</p>

Detection of CD95 and CD95L mRNA expression after liver transplantation using SYBR real-time PCR during acute rejection / 南方医科大学学报

<p><b>OBJECTIVE</b>To detect the expression of CD95 and CD95L mRNAs after liver transplantation and investigate the role of CD95 and CD95L in acute liver allograft rejection.</p><p><b>METHODS</b>The expressions of CD95 and CD95L mRNAs of peripheral blood lymphocyte from 56 liver allograft recipients were examined using SYBR real-time PCR.</p><p><b>RESULTS</b>CD95 and CD95L mRNA levels in the recipients with acute rejection were significantly higher than those without rejection (P<0.01), and the elevation occurred about 2 days earlier than that of alanine aminotransferase and aspartate aminotransferase.</p><p><b>CONCLUSION</b>CD95 and CD95L are related to acute liver allograft rejection and their mRNA expression level may serve as an indicator for prediction and diagnosis of acute rejection episodes.</p>