Gene Expression Profiling ; Genomics ; methods ; Humans ; Lymphoma, Large B-Cell, Diffuse ; classification ; genetics ; pathology ; Prognosis

Objective To investigate the efficacy and safety of ERCP for biliary stricture with duct stone after liver transplantation.Methods Clinical data of 60 patients undergoing ERCP for biliary stricture with duct stone after liver transplantation between January 2013 and June 2014 were retrospectively analyzed.Results ERCP was successfully performed 78 times in 60 patients.Bile duct stenosis was cured in 24 cases (40％),improvement was observed in 27 cases (45％) and was not obvious in 9 cases (15％).Bile duct stones were successfully removed in 39 patients (65％).Incidence of post-ERCP complications was 13％ (8/60),including mild pancreatitis in 1 case,hyperamylasemia in 5 cases,biliary tract infection in 2 cases,which were all resolved after conservative treatment.Conclusion ERCP is a safe and effective treatment for biliary stricture with duct stone following liver transplantation.

Objective To evaluate the efficacy and safety of endoscopic retrograde cholangiopancre-atography (ERCP)by using a duodenoscope in patients with prior Billroth Ⅱ gastrectomy.Methods Data of 98 patients(including 7 who underwent Billroth Ⅱand Braun)with prior Billroth Ⅱ gastrectomy who un-derwent ERCP from January 2008 to May 2014 at Endoscopy Center of Ruijin Hospital were retrospectively studied.Results A total of 98 patients accepted 111 ERCP procedures,the overall success rate was 75.7%(84 /111).The success rate of accessing Vater′s papilla was 82.0%(91 /111)and the selective can-nulations success rate was 92.3%(84 /91).In the cases of successful access,therapeutic procedures were achieved in 100.0%(84 /84)of all patients.The overall rate of complications was 4.5%(5 /111),with mild post-procedure pancreatitis occurring in 3 cases,cholangitis in 2 cases,respectively.Conclusion ERCP u-sing a duodenoscope can be safely and effectively performed in patients with prior Billroth Ⅱ gastrectomy with high cannulation and treatment success rates.

Objective To analyze the causes for diffuse bone marrow uptake of 18F-FDG on PET/CT scans. Methods Sixty-six patients with diffuse bone marrow uptake on whole-body FDG-PET/CT imaging were enrolled for this study. Seventy-nine healthy subjects ( with no history of tumor or recent fever) were selected as normal control. The SUVmax and SUVmean were measured in bone marrow and mediastinum in both groups. The maximum (bone marrow SUVmax/ mediastinum SUVmax) and mean value ratios (bone marrow SUVmean/ mediastinum SUVmean) were calculated. Statistical analysis was performed by one-factor variance analysis. Results With diffuse bone marrow uptake pattern of 18F-FDG, 27 were caused by injection of hematopoietic growth factor, 21 by hematopathy and 18 due to fever. SUVmeanof those three causes were 3.076±1.955, 3.633±2.405 and 2.546±0.791 respectively, each was significantly different from that of the control group (1.026±0.190; F =34.465, P<0.001). Conclusion Diffuse bone marrow uptake on FDG-PET/CT are caused by both benign and malignant reasons.

Objective To assess the feasibility of a novel 99Tcm labelled polypeptide analogue for interleukin-11 receptor ( IL11R) imaging in a bone metastases model for prostate cancer. Methods A novel circular polypeptide analogue of IL11 ( c( CGRRAGGSC ) ) was indirectly labeled with 99Tcm and the product was named as 99Tcm-DTPA-IL11 RR. The labeling efficiency, radiochemical purity and stability of the product were measured with paper chromatography and high performance liquid chromatography (HPLC). The biodistribution of 99Tcm-DTPA-IL11RR was investigated in 28 ICR normal mice. The organ radioactivity was measured as percentage activity of injection dose per gram of tissue ( %ID/g). The models of bone metastases from prostate cancer were established at the tibias of BALB/c nude mice bearing human prostate cancer PC-3 cells. The tumor bearing ( n= 5 ) and standard closed fracture nude mice models underwent both 99Tcm-DTPA-IL11RR and 99Tcm-methylene diphosphonate (MDP) scintigraphy study. The images were acquired at 0.5, 1,2, 4, 6, 8, 24 h after intravenous injection of the tracers. The competitive inhibition imaging was perfomed in three tumor bearing mice. One-way variance analysis was used. Results The labeling efficiency was 90.7%. The radiochemical purity of 99Tcm-DTPA-IL11RR in normal saline solution was (99.57 ±0.09)%, (99.29 ±0.18)%, (98.95 ±0.78)%, (98.67 ±0.11)%, (96.53 ±0.91)%, (95.20±0.70)%, (88.38 ±0.22)% and (36.17±1.29)% at room temperature after0, 1,2, 3, 4, 6, 8 and 24 h, respectively. The tracer radiochemical purity in the blood of ICR mice remained over 90% at 37 C for 6 h. The labeling compounds were excreted mainly through kidney. The peak uptake of bone ( ( 1.910 ±0.109) %ID/g) and liver ( (0.366 ±0.030) %ID/g) was at 4 h after injection. In the tumor bearing mice, the uptake of spine marrow and large joints of extremities was mild. The highest uptake at tumor region was at 4 h and persistent at 6-8 h after injection. The tumor to non-tumor ratios (T/NT) were 1.17 ±0.17, 2.20 ±0.29, 3.20 ±0.15, 3.67 ±0.23, 13.61±0.85, 9.45 ±0.37 and 3.33 ±0.30 at 0.5,1, 2, 4, 6, 8 and 24 h, respectively (F=621.54, P＜0.05). In the standard closed fracture models,high uptake of 99Tcm-MDP was shown at the fracture site, with no increased 99Tcm-DTPA-IL11RR uptake noted. The tumor uptake was significantly depressed after a pre-injection of the unlabeled polypeptide analogue. Conclusions The synthesis of 99Tcm-DTPA-IL11RR is stable and the labeling efficiency is high. It may be a potential molecular probe in metastatic bone imaging for prostate cancer.

BACKGROUND:Once lumbar degenerative diseases merge with lumbar spinal stenosis, lumbar instability and degenerative scoliosis, surgical therapy is required for corresponding clinical symptoms, and the usage of internal fixators cannot be inevitable. Osteoporosis is rather common in the elderly. Therefore, how to implant stable pedicle screw fixation system in serious osteoporosis patients wil be a big difficulty. In recent years, some studies have proven the biomechanical stability of polymethylmethacrylate augmentation of a cannulated and fenestrated pedicle screw in the vertebral body, so it becomes very hot in the spine surgery. OBJECTIVE: To explore the clinical efficacy of the use of polymethylmethacrylate augmentation of a cannulated and fenestrated pedicle screw fixation for the treatment of lumbar degenerative disease accompanied with osteoporosis. METHODS:Thirty-one patients with lumbar degenerative disease accompanied with osteoporosis from Jun 2008 to Jan 2013 were selected, including 11 males and 20 females with an average age of 73.5 years (range, 65-86 years). There were 14 cases of lumbar degenerative stenosis, 9 of lumbar intervertebral disc herniation combined with segmental instability, 6 of lumbar degenerative spondylolisthesis, and 2 of lumbar degenerative scoliosis. The patients were treated with lumbar canal decompression, fusion and polymethylmethacrylate augmentation of a cannulated and fenestrated pedicle screw fixation according to their clinical features and imaging data. Visual analog scale for pain evaluation was used before and after fixation, the Japanese Orthopaedic Association (JOA) scale was used for assessment of neurological function and life skils before internal fixation and during folow-up. RESULTS AND CONCLUSION:Al cases were folowed up for 40 months (range, 36-48months). No screw breakage, rod breakage, screw extraction, loosening, pseudoarticulation formation, or incision infection was found. The postoperative visual analog scale score and the JOA score was remarkably improved (P < 0.05). For patients suffering from lumbar degenerative disease accompanied with osteoporosis, polymethylmethacrylate augmentation of a cannulated and fenestrated pedicle screw fixation is helpful for increasing the stabilization of screw and preventing from loosening and dislocation of the screws, and thereby beneficial for improvement and maintenance of clinical efficacy.

Objective To evaluate the efficacy and safety of fully covered self-expandable metal stents (FCSEMS) implanted by endoscopic retrograde cholangiopancreatography (ERCP) for patients with benign biliary stricture (BBS).Methods The clinical data of 38 patients with BBS underwent ERCP and FCSEMS placement between January 2012 and January 2016 were retrospectively recorded.Success rate of BBS,adverse events related to ERCP and stricture recurrence were analyzed.Results A total of 38 patients underwent FCSEMS placement with a mean time of stent in dwelling for 8 months (range:3-13months).During follow-up after the stent was removed,death of 1 patient after liver transplantation was due to unrelated cause.The mean follow-up time was 13 months (range:2-52 months) for other patients.Stricture recurrence occurred in 6 patients,including 2 cases of gallstone-related biliary strictures,1 case of chronic pancreatitis-related biliary strictures,2 cases of liver transplantation-related biliary strictures,and 1 case of post surgical-related biliary strictures.Stricture resolution occurred in 31 cases with 83.8％ (31/37) success rate,including 90.0％ (18/20) gallstone-related biliary strictures,75.0％ (3/4) chronic pancreatitis-related biliary strictures,80.0％ (8/10) liver transplantation-related biliary strictures,and 66.7％ (2/3)post surgical-related biliary strictures.The incidence of post-ERCP complications was 21.1％ (8/38),including mild pancreatitis in 5 case,hyperamylasemia in 2 cases,cholangitis in 1 case.All patients were cured by conservative treatment.Conclusion FCSEMS are effective and safe for BBS.Further studies are needed to assess the indwelling time of FCSEMS,whether FCSEMS are superior to multiple plastic stents and the different efficacy of FCSEMS for BBS caused by different etiology.

Objective To study the clinical value and the safety of endoscopic retrograde cholangio-pancreatography(ERCP)for chronic pancreatitis in the pediatric population.Methods Clinical data,endo-scopic reports,and radiography of chronic pancreatic patients aged from 2 to 17 years old who underwent ERCP between Jan.1,2008 and Apr.30,2014 at Endoscopy Center of Ruijin Hospital were reviewed.These patients were divided into 3 groups,patients aged from 2 to 6 years old as children group(n =27),patients aged from 7 to 12 years old as juvenile group(n =35)and patients aged from 13 to 17 as adolescent group(n =25). Their clinical data and complications were analyzed by groups.Results A total of 170 ERCP procedures were performed in 87 patients,with the success rate of 99.4%(169 /170).All patients were diagnosed as having chronic pancreatitis by ERCP.Success rates of children group,juvenile group and adolescent group were 97.6%(40 /41),100.0%(72 /72)and 100.0%(57 /57)respectively.There was no statistically significance among the three groups(P =0.207).No serious complications like bleeding or perforation occurred.No proce-dure-related mortality occurred in this study either.The rate of post-ERCP adverse events in children group, juvenile group and adolescent group were 41.5%(17 /41),25.0%(18 /72)and 24.6%(14/57),respective-ly.Children group had more adverse events than the juvenile group(P =0.039)and adolescent group(P =0.045).Conclusion Pediatric ERCP is highly effective in the pediatric population with chronic pancreatitis. The incidence of post ERCP adverse events is higher among the youngest children.

OBJECTIVETo study the clinicopathologic features and differential diagnosis of lymphoma-like lesions and lymphoma of uterine cervix.

METHODSClinical data and hematoxylin and eosin-stained slides of 10 cases of lymphoma-like lesion and 16 cases of lymphoma of uterine cervix were reviewed. Immunohistochemical study for B- and T-cell markers and light chains (kappa, lambda) were performed on paraffin sections. The rearrangement status of immunoglobulin heavy chain (IgH) gene was analyzed with semi-nested polymerase chain reaction in 4 cases lymphoma-like lesion and 4 cases of lymphoma of uterine cervix.

RESULTSThe age of patients with lymphoma-like lesion ranged from 24 to 54 years (medium = 43 years). The lesion generally presented with cervical erosion or polyp. Microscopically, it is characterized by focal or diffuse superficial infiltration of immunoblast-like large B cells intermingled with a polymorphic population of inflammatory cells, including plasma cells, eosinophils and neutrophils. Maturation of the transformed large B cells was also noticed. On the other hand, the age of the patients with lymphoma of uterine cervix varied from 28 to 78 years (medium = 58 years). Cervical mass or diffuse enlargement of cervix were the commonest clinical findings. The cases included 12 examples of diffuse large B-cell lymphoma and 4 examples of follicular lymphoma. The former was characterized by a diffuse monomorphic population of large atypical lymphoid cells, while neoplastic follicles were identified in the latter. Neither polymorphic inflammatory infiltrates nor maturation phenomenon was found. The immunostaining for kappa and lambda light chains was inconclusive. Molecular study showed clonal rearrangement of IgH gene in all cases of cervical lymphoma, as well as 2 cases of lymphoma-like lesion.

CONCLUSIONSThe distinction between lymphoma-like lesion and lymphoma of uterine cervix depends primarily on the clinical and histopathologic features. Assay for rearrangement of IgH gene may be helpful in differential diagnosis, though monoclonality can be detected in some benign lesions as well.

Adult ; Aged ; Antigens, CD20 ; metabolism ; CD79 Antigens ; metabolism ; Diagnosis, Differential ; Female ; Gene Rearrangement, B-Lymphocyte, Light Chain ; Humans ; Immunoglobulin G ; genetics ; Lymphoma, Follicular ; genetics ; metabolism ; pathology ; Lymphoma, Large B-Cell, Diffuse ; genetics ; metabolism ; pathology ; Middle Aged ; Polyps ; genetics ; metabolism ; pathology ; Uterine Cervical Erosion ; genetics ; metabolism ; pathology ; Uterine Cervical Neoplasms ; genetics ; metabolism ; pathology ; Young Adult

OBJECTIVEIntravenous administration of basic fibroblast growth factor (bFGF) is effective to reduce the volume of cerebral infract due to ischemia. This study was designed to investigate the molecular mechanism, especially the signal transduction pathways, involved in this protective role of bFGF.

METHODSAnoxia-reoxygenation treated astrocytes were used to study the role of mitogen-activated protein kinase/extracellular signal-regulated kinase kinase (MAPK/ERK kinase, MEK)-ERK signaling pathway after exogenous bFGF administration by Western blot. Electrophoretic mobile shift assay was used to detect the binding activity of early growth response factor-1 (Egr-1), an important transcription factor for endogenous bFGF.

RESULTSbFGF could protect some signal transduction proteins from the oxygen-derived free radicals induced degradation. ERK1/2 was activated and involved in Egr-1 binding activity enhancement induced by exogenous bFGF.

CONCLUSIONMEK-ERK MAPK cascade may be an important signal transduction pathway contributed to bFGF induced enhancement of Egr-1 binding activity in anoxia-reoxygenation injured astrocytes.

Animals ; Animals, Newborn ; Astrocytes ; drug effects ; metabolism ; Cells, Cultured ; Early Growth Response Protein 1 ; metabolism ; Electrophoretic Mobility Shift Assay ; methods ; Fibroblast Growth Factors ; pharmacology ; Mitogen-Activated Protein Kinase Kinases ; metabolism ; Oxygen ; metabolism ; Protein Binding ; drug effects ; Rats ; Signal Transduction ; physiology ; Time Factors