Tumor microenvironment is the key factor that influences the invasion and metastasis of tumor cells.Exosome is the particle by which cells can make communication in microenvironment.MicroRNA (miRNA)is widely involved in physiological processes,and plays an important role in the stability of tumor environment.MiRNAs in exosome play roles in tumor cell proliferation,extracellular matrix remodeling,and then promote the metastasis,invasion and angiogenesis of tumor.Thus,the expression of oncogenes can be blocked by regulating the exosome production and secretion.It may shed light on the development of a thera-peutic strategy for tumor treatment.

MicroRNAs (miRNAs)are closely associated with the development,invasion,metastasis and prognosis of cholangiocarcinoma (CCA).The abnormal expressions of miRNA play important roles in regulating the genetic variation,cell cycle,invasion and metastasisability and apoptosis of CCA.MiRNAs are hopeful for being used as the biological markers of early diagnosis,prognosis and treatment target.

Adenocarcinoma, Mucinous ; metabolism ; pathology ; surgery ; Aged ; Biomarkers, Tumor ; metabolism ; Carcinoembryonic Antigen ; metabolism ; Carcinoma, Pancreatic Ductal ; metabolism ; pathology ; surgery ; Carcinoma, Papillary ; metabolism ; pathology ; surgery ; Cystadenocarcinoma, Mucinous ; metabolism ; pathology ; surgery ; Diagnosis, Differential ; Duodenal Neoplasms ; metabolism ; pathology ; surgery ; Female ; Follow-Up Studies ; Humans ; Immunohistochemistry ; Male ; Middle Aged ; Mucin-2 ; Mucins ; metabolism ; Neoplasm Invasiveness ; Pancreatic Neoplasms ; metabolism ; pathology ; surgery ; Pancreaticoduodenectomy

Adult Clonorchis sinensis not only occurs in human hepatic duct,but also in the liver,gallbladder and bile ducts of animals,including dogs and cats,thus causing clonorchiasis—one of important parasitic zoonoses. In present study,we dis?sected a domestic cat in which a total of 736 pieces of trematodes,identified as Clonorchis sinensis,were detected in the liver and cholecyst. The findings indicate that Clonorchis sinensis may be endemic in domestic animals in Wuhu area,and observe our awareness in prevention of the parasites in house pets.

Child A.The concentration of CGRP varied positively with the diameter of portal vein(r=0.60,P

Objective To explore CT diagnostic values of cardiac carcinoma.Methods CT findings of cardiac cancer comfired pathologically in 50 cases were analysed.All case were examined with spiral CT.Results The thickness of gastric cardia wall was found in all 50 cases,soft tissue masses was found in 25 cases,adjacent tissue invasion was found in 18 cases and metastasis of lymph nodes was found in 33 cases.Conclusion CT is a valuable method in demonstrating the size of cardiac carcinoma,its adjacent tissue infiltration and lymph node metastasis.It plays important role in the planning of treatment in clinical practice.

To study the status of homozygous deletions of MTS1/p16 gene in squamous cell carcinoma of the larynx (LSCC) and to discuss the relations of homozygous deletions to the pathological grade and clinical stage of the tumor,Fifty-nine primary LSCC were examined for homozygous deletions of the MTS1/p16 gene by comparative PCR.Three specimens were eliminated for being incapable of comparison with others.Homozygous deletions of the MTS1/p16 gene were found in 9 of 56 tumors (16.07%).The rates of homozygous deletions of MTS1/p16 gene in well,medially,poorly differentiated tumors were 17.24%(5/29),11.76%(2/17),and 20.00%(2/10) respectively.There had no significant difference in various pathological grades of tumors.Homozygous deletions rates of tumors in stagesⅠ～Ⅱand in stagesⅢ～Ⅳwere 5.41% (2/37) and 36.84%(7/19) respectively.The rate of homozygous deletions in stages Ⅲ～Ⅳtumors was significantly higher than that in stagesⅠ～Ⅱ(P＜0.01).Homozygous deletions of the MTS1/p16 gene were correlated well with clinical stages.Our data suggested that homozygous deletions of MTS1/p16 gene might be one of the genetic events in the development of the tumor and might play a role in malignant progression of LSCC.

Data Mining ; Humans ; Medicine, Chinese Traditional ; Stomach Diseases ; therapy

Objective To evaluate the value of bedside index for severity in acute pancreatitis (BISAP) in predicting the severity and prognosis of acute pancreatitis (AP) by comparison with traditional scoring systems.MethodsFour hundred ninety-seven patients of AP admitted into Wuxi People's Hospital from January 2005 to December 2010 were studied retrospectively.BISAP,APACHE Ⅱ,Ranson and Balthazar CT (CTSI) scores were calculated,respectively,in order to evaluate the severity.The AUC of ROC was used to evaluate the ability of BISAP and the other scoring systems in predicting the severity of AP and the occurrence of pancreatic necrosis,organ failure and mortality.Results Among 497 patients,mild acute pancreatitis (MAP) was identified in 396 patients and severe acute pancreatitis (SAP) in 101 patients.The gender,age and etiological factors between MAP and SAP were not statistical different.The BISAP,APACHE Ⅱ,Ranson scores of the 4 9 7 patients were 1.08 ± 1.01,5.79 ± 4.00,1.69 ± 1.59,and the scores were intercorrelated(r =0.612,0.568,0.577,P ＜0.001).In addition,the BISAP,APACHE Ⅱ,Ranson scores of SAP patients were significantly higher than those in MAP patients.The AUC of BISAP for SAP was 0.762(95％ CI 0.722 ～0.799),when the cutoff value was 2,the sensitivity,specificity,positive predictive value (PPV),negative predictive value ( NPV ) were 63.39％,83.08％,48.1％,89.4％ ; the AUC of BISAP for pancreatic necrosis was 0.711 (95％ CI 0.612 ～ 0.797),when the cutoff value was 2,the sensitivity,specificity,PPV,NPV were 84.6％,46.7％,35.5％,89.7％ ; the AUC of BISAP for organ failure was 0.777( 95％ CI0.683 ～ 0.854),when the cutoff value was 2,the sensitivity,specificity,PPV,NPV were 93.1％,51.4％,43.5％,94.9％ ; the AUC of BISAP for mortality was 0.808(95％ CI 0.718 ～0.880),when the cutoff value was 3,the sensitivity,specificity,PPV,NPV were 83.3％,67.4％,25.6％,96.8％.In the cases of SAP,the ability of BISAP and the other scoring systems in predicting the prognosis showed no statistical difference.ConclusionsThe BISAP has the prediction ability for AP severity and prognosis similar to other scoring systems,and it consists of only 5 parameters and can be completed in the fast 24 h of admission,therefore it can be used for early predication of SAP,which is worth of clinical application.

OBJECTIVE: A retrospective analysis of the clinical efficacy on the surgery of maxillary sinus diseases via the endoscopic lateral nasal wall incision, and a discussion on the clinical application of this approach. METHOD: Eighteen cases of the maxillary sinus diseases diagnosed on the basis of the preoperative nasal endoscopy, CT scan or MRI, and pathologic finding. Among 13 patients underwent routine lateral nasal wall incision approach, including 4 of maxillary sinus hemorrhagic and necrotic polyps, 4 of maxillary sinus cyst, and 3 of the maxillary sinus fungal infection. Five patients underwent lateral nasal wall resection approach and thorough maxillary sinus lesions resection by nasal endoscope, including 3 of inverted maxillary sinus papilloma, a nasal sinus bone giant cell tumor and a spindle cell tumor. Patients were followed up for more than half a year, and the postoperative efficacy were observed. RESULT: The surgical cavity of the lateral nasal wall incision approach have luminal epithelium, well shapes of inferior turbinate, no recurrence of the lesion, and the lateral nasal wall resection patients with well luminal epithelium, without recurrence. All patients had no complications such as numbness, tears, etc. CONCLUSION Endoscopic incision of lateral nasal wall keep the nasolacrimal duct and inferior turbinate, help remove the entire sinus cavity lesion and retain the physiological function of the nasal cavity. Resection of the lateral nasal wall can reveal an ideal vision approach, which perform certain clinical value for the treatment of the inverted maxillary sinus papilloma and sinus cancer.
Cysts ; surgery ; Dissection ; methods ; Endoscopy ; Humans ; Magnetic Resonance Imaging ; Maxillary Sinus ; surgery ; Maxillary Sinus Neoplasms ; surgery ; Maxillary Sinusitis ; microbiology ; surgery ; Nasal Cavity ; surgery ; Papilloma, Inverted ; surgery ; Retrospective Studies ; Tomography, X-Ray Computed