Hemostatic clips to facilitate intubation during ERCP with ampulla around duodenal diverticulum / 中国内镜杂志

Objective To investigate the effectiveness of hemostatic-clip-assisted method during ERCP with ampulla around duodenal diverticulum. Methods 25 patients with ampulla around duodenal diverticulum encountered cannulation difficulty, 11 cases underwent with clip-assisted method, 14 cases with ordinary ways. Number of successful cases, cannulation time, post-operation complication were analyzed. Results All the 11 cases succeeded in clip group. 12 patients succeeded in none-clip group. Cannulation time between the two groups were discrepant. There was no difference in number of successful cases and post-operation complication rate. Conclusion Successful application of hemostatic clip help to expose and facilitate cannulation of an ampulla around a duodenal diverticulum.

Clinical value of ATP determination in CD4+ cells of patients with cytomegaloviral pneumonia after kidney transplantation / 南方医科大学学报

<p><b>OBJECTIVE</b>To explore the clinical value of determination of ATP levels in CD4(+) cells of patients with cytomegaloviral pneumonia after kidney transplantation.</p><p><b>METHODS</b>Twenty-eight patients with cytomegaloviral pneumonia following kidney transplantation and 30 healthy volunteers were enrolled in this study. ATP-bioluminescence assay (ATP-CVA) was used to assess the immune response of CD4(+) cells to phytohemagglutinin (PHA) stimulation in the normal volunteers and the recipients (before and at 1, 2, and 4 weeks after renal transplantation, before and at 2 and 4 week after the treatment).</p><p><b>RESULTS</b>ATP concentration in CD4(+) cells of the recipients was 402-/+58 ng/ml before the operation, significantly lower than that in normal volunteers (458-/+196 ng/ml, P<0.05), and reached the lowest level in the first week after operation especially in the recipients with antibody-inducing therapy; ATP level increased slowly since week 2 post-operation, but still remained significantly lower than the preoperative by the fourth week (266-/+87 ng/ml, P<0.05), especially in the recipients receiving antibody-inducing therapy. In the event of cytomegaloviral pneumonia, ATP level underwent a mild reduction to 152-/+78 ng/ml in comparison with the postoperative level at the first week (P>0.05), and was significantly lower than preoperative level (P<0.01); the decrease was especially obvious during the exacerbation of the condition. ATP level then increased slowly after effective treatment, but was still lower than the preoperative level at 4 weeks after the operation (336-/+92 ng/ml, P<0.05).</p><p><b>CONCLUSION</b>The determination of ATP level in CD4(+) cells allows more accurate assessment of the cellular immunity in the renal transplant recipients with cytomegaloviral pneumonia to help in the clinical treatment of the patients.</p>

Comparison of the surgical approaches for nephrectomy in living related donors / 南方医科大学学报

<p><b>OBJECTIVE</b>To compare the clinical effects and graft outcomes of 4 surgical approaches for nephrectomy in living related kidney donors.</p><p><b>METHODS</b>Between June, 2004 and June, 2007, 119 living related kidney donors underwent nephrectomy via different surgical approaches, and their clinical data were retrospectively analyzed. Of these donors, 22 received retroperitoneal open nephrectomy, 21 had retroperitoneoscopic nephrectomy, 13 had hand-assisted laparoscopic nephrectomy, and 63 underwent transperitoneal open nephrectomy. The operating time, warm ischemia time of the graft, renal graft artery and vein lengths, reduction rate of recipient serum creatinine in the first 3 days after renal transplantation, mean hospital stay and complications of the donors were compared between the 4 surgical approaches.</p><p><b>RESULTS</b>Open surgeries were associated with significantly shorter operating time (P=0.0033) and warm ischemia time of the graft (P=0.0001), longer hospital stay (P=0.0000), higher hospital expenses (P=0.0000), faster postoperative reduction of recipient serum creatinine (P=0.0001), and longer renal artery and vein lengths (P=0.0000 on the left and P=0.0001 on the right) than laparoscopic surgeries. In the laparoscopic surgery group, subcutaneous emphysema occurred in 1 case, DGF in 2 cases, and lumbar vein hemorrhage in 2 cases for which open surgery was performed. In the open surgery group, only one case required reoperation due to adrenal gland hemorrhage. All the kidney grafts were successfully harvested without other complications observed in the donors.</p><p><b>CONCLUSIONS</b>Both open and laparoscopic surgeries are safe for nephrectomy in living related kidney donors, and the selection of the surgical approaches depends on the kidney and donor conditions and the surgical proficiency of the surgeons.</p>

Etiologic investigation of chronic granulomatous inflammation of hand by polymerase chain reaction and DNA sequencing / 中华病理学杂志

<p><b>OBJECTIVE</b>To explore the causative pathogens in littoral hand infections which exhibited chronic granulomatous inflammation, the relationship between chronic granulomatous inflammation and mycobacteria and to discuss the prospects of PCR in clinical application for diagnosis of granulomatous inflammation.</p><p><b>METHOD</b>With 16S-rDNA as the target sequence, Nest-PCR was used to detect mycobacteria directly from 37 cases of chronic granulomatous inflammations, and identified them by gene sequencing.</p><p><b>RESULTS</b>Twenty-four of 37 cases were positive for mycobacteria by Nest-PCR, in which 17 were M.marinum, 1 M.chelonae, 2 M.avium, 2 M.kansasii, and 2 M.tubercular through gene sequencing.</p><p><b>CONCLUSIONS</b>Nest-PCR combining gene sequencing proved to be a liable and sensitive method to detect Non-tubercular mycobacteria (NTM) in fresh tissue. NTM is the major factor of hand specific chronic infections other than tubercular. Pathological changes are difficult to differentiate TB from NTM and bacterial evidence was necessary.</p>

Half-dose Zenapax for acute rejection prevention after renal transplantation / 南方医科大学学报

<p><b>OBJECTIVE</b>To investigate the efficacy and safety of half-dose Zenapax for prevention of acute rejection after renal transplantation.</p><p><b>METHODS</b>According to the immunosuppressive regimen and renal function after transplantation, patients were divided into 4 groups, namely groups A, B, C, and D of 90, 73, 11 and 13 patients, respectively. Blood creatinine measured 1 week after operation was <176.6 micromol/L in groups A and B, and was >353 micromol/L in groups C and D. Patients in groups A and C were given 25 mg Zenapax (0.5 mg/kg) and MMF 0.75 g before operation, and those in groups B and D had only MMF of 0.75 g. All patients were given Pred, CsA and MMF after operation, and the rejection episodes, the time of acute rejection onset, the rate of rejection reversal and complications were analyzed in the time period of 6 months after operation.</p><p><b>RESULTS</b>After the operation, 13 patients (14.4%) developed acute rejection in group A, 18 (24.6%) in group B, 6 (54.5%) in group C and 7 (53.8%) in group D (P<0.01). The incidence of acute rejection in group B was significantly lower than that in groups C and D groups (P<0.01), and the latter two groups had similar incidence. The time of acute rejection onset ranged from 3 to 9 days postoperatively (mean 6.2-/+3.2 days) in group A, significantly delayed as compared with that in group B (range 2-8 days, mean 4.7-/+3.1 days), group C (range 2-7 days, mean 4.3-/+4.2 days) and group D group (range 2-9 days, mean 3.9-/+3.5 days), but the time was similar between groups B, C, and D (P>0.05). All acute rejection cases in group A was reversed, and the rate of reversal was 88.9% (16/18) in group B, 83.3% in group C, and 71.4% in group D. No significant differences were noted in such complications as infection, vascular injuries or gastrointestinal reactions between the 4 groups (P>0.05).</p><p><b>CONCLUSION</b>Zenapax at the dose of 25 mg can safely decrease the risk of acute rejection in patients with good postoperative renal function recovery, but dose not seem effective in patients with delayed graft function recovery.</p>

Differential analysis of tyrosine-phosphorylated proteins in human hepatocellular carcinoma cell lines with different metastasis potentials / 中华肝脏病杂志

<p><b>OBJECTIVES</b>To compare expressions of tyrosine-phosphorylated proteins in different hepatocellular carcinoma cell lines with different metastasis potential and to screen key molecules associated with HCC metastasis and recurrence.</p><p><b>METHODS</b>Using two-dimensional electrophoresis, Western blotting and MALDI-TOF-MS/MS, we analyzed tyrosine-phosphorylated protein profiles of Hep3B, MHCC97L and MHCC97H, HCC cell lines with different metastasis potentials.</p><p><b>RESULTS</b>10 spots were detected in Hep3B, 19 in MHCC97L and 17 in MHCC97H. Seventeen significantly different phosphotyrosine proteins in gel were identified by MALDI-TOF-MS/MS, including Annexin I.</p><p><b>CONCLUSION</b>The changed expression of tyrosine-phosphorylated proteins is associated with HCC metastasis and recurrence.</p>

Surgical techniques for the ureterointestinal anastomosis in continent urinary diversion / 中华外科杂志

<p><b>OBJECTIVE</b>To compare the complications of direct and antirefluxing techniques of ureterointestinal anastomosis in continent urinary diversion.</p><p><b>METHODS</b>Sixty-three patients underwent continent urinary diversion. Twenty-four patients were treated by the direct ureteroenteric anastomosis and the others treated by the antirefluxing technique. The follow up studies included following-up the information of ureteric stricture, ureteric reflux, renal function and acute urinary infection. It was assessed for 3 months to 6 years with a mean follow up of 26 months after operation.</p><p><b>RESULTS</b>Of 78 ureters reimplanted using antirefluxing technique. A total of 12 ureters had anastomotic stricture formation postoperatively. Only one of 48 ureters reimplanted using direct anastomoses had anastomotic stricture. The difference between the direct and antirefluxing technique groups was remarkable (chi2 = 4.375, P < 0.05). Furthermore, there was no significant difference between the direct and antirefluxing technique groups in regard to ureteric reflux, renal function and acute urinary infection.</p><p><b>CONCLUSIONS</b>Antirefluxing anastomoses resulted in obviously higher rate of ureterointestinal anastomotic stricture in comparison with the direct anastomosis. The direct ureteroenteric anastomosis may be the suitable choice for patients undergoing continent urinary diversion.</p>