Background:CXC chemokine receptor type 2(CXCR2)is a member of G protein coupled receptor superfamily,and is mainly involved in the growth of tumor,angiogenesis and the pathogenesis of inflammatory diseases. Studies showed that CXCR2 was associated with the pathogenesis of inflammatory bowel disease(IBD),but the exact role has not yet been clarified. It was found that the interaction of interleukin-8(IL-8)with CXCR1 and CXCR2 played an important role in the pathogenesis of IBD. Aims:To investigate the expressions and significance of CXCR2 and IL-8 in patients with IBD. Methods:A total of 121 IBD patients in active stage from October 2013 to December 2014 at Zhongnan Hospital of Wuhan University were enrolled and assigned into Crohn’s disease(CD)group and ulcerative colitis(UC)group. Seventy healthy subjects were served as controls(HC). Expressions of IL-8 mRNA and CXCR2 mRNA in peripheral blood and intestinal mucosal tissue were determined by real-time PCR;expression of CXCR2 protein in intestinal mucosal tissue was determined by Western blotting. Results:In peripheral blood,expression of IL-8 mRNA in UC group was significantly higher than that in HC group(P = 0. 017),while expressions of CXCR2 mRNA in CD,UC and HC groups were not significantly different (P = 0. 285). In intestinal mucosal tissue,expressions of IL-8 mRNA in CD,UC and HC groups showed no significant difference(P = 0. 206),while expressions of CXCR2 mRNA in CD and UC groups were significantly higher than that in HC group(P = 0. 002;P < 0. 001),and expression of CXCR2 mRNA in UC group was significantly higher than that in CD group(P = 0. 005);expressions of CXCR2 protein in UC and CD groups were higher than that in HC group(P = 0. 049 P =0. 080). Conclusions:Expressions of CXCR2 mRNA and protein in intestinal mucosal tissue of patients with IBD, especially UC are significantly increased. Down regulation of CXCR2 expression in intestinal mucosa may provide a new target for treatment of UC. IL-8 is significantly highly expressed in peripheral blood of patients with UC,which suggests that IL-8 might be related mainly with UC.

Objective To summarize the diagnostic and therapeutic experience on chronic pancreatitis characterized by a pancreatic mass. Methods The clinical data of 28 cases of chronic pancreatitis with mass undergoing surgical operations were retrospectively analyzed in our hospital from June1999 to June 2009. Results Among the 28 cases, 19 were diagnosed as carcinoma, 9 cases were diagnosed as chronic pancreatitis respectively before operation. Needle aspiration biopsy and/or postoperative pathology identified chronic pancreatitis in all cases. The symptom included abdominal pain (22 cases),jaundice (15 cases), and obstruction of duodenum (4 cases). Pancreaticoduodenectomy was performed in 17 cases, choledochojejunostomy performed in 3 cases, pancreatojejunostomy performed in 1 case.Duodenum-preserving resection was performed in 4 cases, and resection of body and tail of the pancreas were performed in 3 cases. There was no operative death. Postoperative complications included pancreatic leakage (2 cases), severe gastroplegia (2 cases) and stress peptic ulcer with massive bleeding ( 1 case). All patients got follow-up ranging from 6 months to 5 years. Recurrence of abdominal pain developed in 7 cases after 2 years. Canceration of pancreatic mass was found respectively in 8 months, 1 year after operation in one each cases. Conclusion Preoperative differential diagnosis of chronic pancreas and pancreatic tumor was difficult. Although needle aspiration biopsy is the effective method for diagnosis, there may be still a possibility of missed diagnosis/misdiagnosis.

Background and Purpose:Cyclooxygenase-2(COX-2) plays an important part in tumor genesis,growth,and angiogenesis.Many inhibitors of COX-2 could inhibit proliferation and induce apoptosis of cancer cells. This study investigated the impact of NS398 on anti-proliferation and the induction of apoptosis in human osteosarcoma cell line MG-63.Methods:Cell proliferation is measured by MTT method.Characteristic changes of apoptosis in morphology are observed by fluorescence microscopy、transmission electron microscopy(TEM) and quantitatively by TDT-mediated dUTP-biotin nick end-labeling(TUNEL) assay.The apoptotic rates are calculated by flow cytometry(FCM).Results:The growth inhibition rates of MG-63 cells treated with 1,10,50,100 and 200 ?mol/L NS398 are 14.7%,23.5%,33.6%,52.5% and 81.4%,respectively(P

Child ; Child, Preschool ; Cord Blood Stem Cell Transplantation ; methods ; Female ; Hematologic Diseases ; therapy ; Humans ; Infant ; Male

Objective To study the mitochondrial cytochrome C oxidase 1(CO1) gene of Oncomelania snails from Miao River area in Hubei Province.Methods Oncomelania snails were collected from Miao River area, including upstream and downstream. Genomic DNA was extracted from the tissue of the snail. PCR was used to amplify a fragment of the CO1 gene. Sequences of the CO1 fragment were determined directly from the purified PCR products by an automated sequencer. Sequences for each individual were assembled and edited using ESEE 3 0 s. A distance matrix was computed using program DNADIST of PHYLIP(3 57). Unrooted maximum likelihood trees were calculated from program FITCH.Results The amplified CO1 gene of the snail was a fragment of 638 bp in length. Sequence analysis showed that the accumulated variable sites were significant different between upstream and downstream populations, being 29 and 46, respectively. From the number of variable sites in the gene,snails in this area were roughly separated into two groups. Each of them was a mixture of both upstream and downstream snails.Same haplotypes were confirmed to be present among the collected sites along the river. From the distance matrix of sequence divergence, the population upstream vs downstream differed by 0 0221?0 0105.Conclusion There were more variation in downstream population than that in upstream.Gene flow was identified in these populations. The phylogenetic trees suggest the existence of two groups,but all of them belong to O h hupensis .

Post-stroke depression(PSD) is one of the most common complications after stroke,and seriously influenced the quality of life of hemiplegic patients.The article would review the associated factors and mechanism of PSD.

Adult ; Embolism, Amniotic Fluid ; etiology ; therapy ; Female ; Humans ; Pregnancy

Humans ; Jaw, Edentulous ; therapy ; Maxilla ; Prostheses and Implants

Objective To explore clinical application of neotype controllability artificial nephrohydrosis in percutaneous nephrolithoto-my. Methods 400 patients with renal lithiasis or superior segment ureter lithiasis in our hospital were divided into group A and group B. 200 cases of group A received neotype controllability artifiicial nephrohydrosis;200 cases of group B received conventional artificial nephro-hydrosis. The puncture duration, amount of bleeding and times of puncture of the two groups were compared. Results 195 cases in Group A were developed renal tract for PCNL effectively,157 cases were developed renal tract for PCNL effectively in Group B. The puncture duration, amount of bleeding and times of puncture of group A and group B were respectively (1. 8 ± 0. 7) vs. (2. 5 ± 1. 2) min,(112. 7 ± 51. 0) vs. (270. 2 ± 89. 3) mL,(1. 1 ± 0. 2) vs. (1. 8 ± 0. 7) times. The differences were significant. Conclusion Neotype controllability artificial nephrohydrosis can develop renal tract for PCNL effectively.

Objective To evaluate the safety and effectiveness of partial cystectomy combined with chemotherapy in treating localized muscle invasive bladder cancer.Methods The patients admitted to localized muscle invasive bladder cancer from October 2011 to December 2015 were screened according to the strict inclusion criteria,and the final 53 patients were enrolled in the study,37 males and 16 females,aged 36 to 85 (63.72 ± 13.31)years.Tumor diameter 1.5-4.0 (2.52 ±0.56)cm,the number of≤ 3 and the edge of the tumor from the ureteral opening ＞ 2 cm.All pathological types are urothelial carcinoma.All patients were examined by MRI clinical stage T2a-T2b period.A total of 53 patients with muscle invasive bladder cancer who refuse or older,merge the heavier medical disease,difficult to tolerate radical cystectomy.Using partial cystectomy,intraoperative electrosurgical excision to deep muscle,parallel to the tumor bed frozen to confirm negative margins,postoperatively systemic chemotherapy of gemcitabine combined cisplatin and bladder perfusion chemotherapy of hydroxycamptothecin.Results Patients were successfully opcrated,and no margin positive or incision planting cases.The operating time is 55-110 min and average (79.11 ± 17.25)min.There was no serious complication in operation and postoperative,pathological diagnosis was invasive epithelial cell carcinoma of the urinary tract,pathology classification:low level 41 cases,and high level 12 cases.Follow up of 12 to 62 months,an average of (27.11 ± 12.22)months,21 cases of recurrence,12 patients had superficial recurrence in the bladder who was treated successfully by transurethral resection of bladder tumor,5 cases of multiple myometrial invasion who was treated by radical cystectomy (3 cases died of bladder cancer after the surgery in 8,12,and 18 months later),4 cases of myometrial invasion with recurrence of pelvic lymph node metastasis or even distant metastasis to give up treatment (all died within six months of bladder cancer).The first tumor recurrence time 3-18 months,11 months and the median time.Conclusions Our data indicate that partial cystectomy combined with chemotherapy is a safe and effective in treating localized muscle invasive bladder cancer,with less trauma,shorter operative time and higher safety,so as to provide an alternative treatment for patients with advanced age,high risk or who can not be implemented transurethral resection of bladder tumor or who refused to undergo radical cystectomy.