Objective To explore the application value of 256 slice helical multi phase CT scan-ning and three-dimensional reconstruction in the diagnosis of malignant tumor of colorectal obstruction. Methods Using 256 slice spiral CT scanning and three-dimensional reconstruction of multi period in 42 ca-ses of malignant tumor patients with colorectal obstruction, the results and pathological results were analyzed and the postoperative stage.Results Forty-two cases of malignant tumors of colorectal obstruction, 256 slice spiral CT could well reflect the situation of location, range, degree, peripheral intestinal lymph node and distant metastasis, CTA could show the tumor supplying artery and branch sources, on the tumor loca-tion and overall accuracy.Conclusions 256 layer spiral CT scan and three dimensional reconstruction technology is accuracy for clinical diagnosis on malignant tumor of colorectal obstruction.

Objective To explore whether gastrointestinal carcinoma could influence differentiation and maturation of dentritic cell (DC) in cultured peripheral blood mononuclear cells (PBMC). Methods PBMC of peripheral blood obtained either from healthy individuals or gastrointestinal carcinoma patients were incubated to induce into DC with the aid of addition of GM-CSF, IL-4 and TNF-?. The percentage of DC and expression rate of markers CD83, CD1a were determined by flow cytometric analysis. Results The quantity of PBMC isolated from gastrointestinal carcinoma patients was less than that from healthy individuals with same volume of blood. DC could be induced from PBMC of gastrointestinal carcinoma patients, and they could express B7 costimulatory molecules as those of healthy individuals. But the expression rates of CD83, CD1a were significantly different in two groups. Conclusion The quantity of PBMC and their ability to differentiate into DC seemed to be decreased in gastrointestinal carcinoma patients.

Animals ; Colonic Neoplasms ; metabolism ; pathology ; Female ; Humans ; Liver Neoplasms ; metabolism ; secondary ; Lymphatic Metastasis ; Neoplasm Proteins ; metabolism ; Ovarian Neoplasms ; metabolism ; pathology ; Protein Tyrosine Phosphatases ; metabolism ; Stomach Neoplasms ; metabolism ; pathology

AIM:To evaluate the role of inhaling N 6-phenyl-2R-isopropyl-adenosine (R-PIA) on the airway resistance and pulmonary compliance of experimental asthmatic guinea-pigs. METHODS: Experimental model of asthmatic guinea-pigs were made. Inhaling R-PIA 5 mg/mL( 5 mg R-PIA in 1 mL 0.9% saline). The airway resistance, pulmonary compliance and NO- x, cyclic adenosine monophosphate (cAMP), cyclic guanosine monophosphate (cGMP),tumor necrosis factor (TNF) in bronchoalveolar lavage fluid (BALF) were observed. RESULTS: Compared with asthma group, after inhaling R-PIA, the airway resistance of experimental asthmatic guinea-pigs increased ( P 0 05). CONCLUSION: Inhaling R-PIA could constrict the airway of experimental asthmatic guinea-pigs.

This paper studied on breeding selenium-enriched yeast by protoplast mutagenesis. A strain which the content of selenium is the highest is selected from thirteen strains yeast. The optimum conditions to form protoplast are lysed by 1 g/100 mL lywallzyme for 120 min, the formation and regeneration being 95.2% and 21.8% respectively. By mutating breed a strain of A1 which the content of selenium is 821 mg/kg and the amount of dry cell of 0.84 g/100 mL is obtained.

Objective To study the indications,feasibility and efficacy of rigid choledochoscopy via biliary fistula tracts to remove bile duct stones.Methods A retrospective analysis was performed on the clinical data of 86 patients with bile duct stones treated with rigid choledochoscopy via biliary fistula tracts at our hospital between November 2011 and July 2016.Patients with bile duct stones were divided into the percutaneous transhepatic cholangio drainage (PTCD) group and the T tube tract group.There were 40 patients who underwent lithotomy using rigid choledochoscopy via the PTCD tract and 46 patients who underwent choledocholithotomy using rigid choledochoscopy via the T-tube tract.A comparison was conducted to compare the duration of the procedures,the amount of perioperative bleeding,the postoperative complication rates and residual stone rates between the two groups.Results In the PTCD group,the average operation time was (77.0 ± 36.5) min,the amount of perioperative bleeding was (26.5 ± 54.1) ml,and the postoperative complication rate was 37.5 ％ (15/40).Complete lithotomy in one-stage was successful in 33 patients,and in two-stages in 1 patient.The residual stone rate was 15.0％ (6/40).In the T tube tract group,the average operation time was (82.5 ± 44.1) min,the amount of perioperative bleeding was (14.8 ± 21.0) ml,and the postoperative complication rate was 32.6％ (15/46).Complete lithotomy in one-stage was successful in 34 patients,and two-stages in 2 patients.The residual stone rate was 21.7％ (10/46).There were no significant differences in the residual stone rates,complication rates and operation time between the two groups (P ＞ 0.05).The amount of operative bleeding was significantly better in the T tube tract group than the PTCD group,(P ＜ 0.05).Conclusions There was no significant differences in the clinical efficacy in the treatment of bile duct stones using choledochoscopy either via the PTCD tract or the T tube tract group.Both approaches can be used for bile duct stones.

OBJECTIVETo investigate the technique and its effect of combined nasolabial flap and free auricular composite flap for full-thickness nasal alar defect.

METHODSFrom March 2010 to March 2013, 9 patients with full-thickness nasal alar defects were treated with combined nasolabial flaps and free auricular composite flaps. Composite auricular flap was used as inner lining and cartilage framework. The nasolabial flap at the same side was used as outer lining.

RESULTSAll the patients were followed up for 6-18 months (average, 12 months). All the 9 composite auricular flaps survived completely. Epidermal necrosis happened at the distal end of 1 nasolabial flap. Alar rim was almost normal and symmetric nose was achieved in 6 cases. The arc and the thickness of the alar rim was not enough in 3 cases, resulting in asymmetric appearance.

CONCLUSIONSThe survival area of auricular composite flap can be enlarged with nasolabial flap. The auricular helix edge can be reserved to reconstruct nasal alar rim with smooth and natural arc. Large full-thickness nasal alar defedts can be reconstructed with combined nasolabial flaps and free auricular composite flaps.

Adult ; Female ; Follow-Up Studies ; Humans ; Male ; Middle Aged ; Rhinoplasty ; methods ; Skin Transplantation ; methods ; Surgical Flaps ; Young Adult

Objective To evaluate the accuracy of endoscopic ultrasonography (EUS) in preoperative TNM staging of gastric cancer.Methods EUS and abdominal helical computed tomography (HCT) were performed one week before the surgery in 126 gastric cancer patients who would receive surgery to determine the depth of tumor invasion (T),lymph node metastasis (N) and distant metastasis (M) stage and which were also compared with pathologic TNM stage after surgery to evaluate the accuracy of EUS in TNM staging.Pairing x2 test was performed for data analysis.Results Compared with pathologic TNM stage after surgery,the accuracy of EUS in T1,T2,T3 and T4 staging of gastric cancer were 84.6％,14/18,82.0 ％ and 85.7％ respectively.The accuracy of EUSin N0,N1,N2 and N3 staging of gastric cancer were 74.2％,75.0％,57.9％ and 5/17 respectively.The accuracy of HCT in N0,N1,N2 and N3 staging of gastric cancer were 80.6％,75.0％,73.7％ and 12/17 respectively.The accuracy of EUS was similar to HCT in N0 and N1 stage.For N2 and N3 stage,HCT was obviously better than EUS (x2 =4.89,P=0.027; x2 =13.88,P＜0.01).The accuracy of EUS and HCT in M1 stage of gastric cancer were 36.4％ and 95.5％respectively,HCT was better than EUS in M1 determination (x2 =7.90,P=0.001).Conclusions The clinical application value of EUS in the preoperative gastric cancer T staging was high,however the accuracy in determining lymph node metastasis N2 and N3 staging and distant metastasis M staging should be improved.In order to acquire more accurate preoperative TNM stage to guide the treatment selection,the combination with HCT examination is necessary.

Objective To explore the experience of nursing patients with Crohn’s disease.Method The nursing histories of 80 patients with Crohn’s disease were retrospectively reviewed to analyze and summarize the measures for nursing them.Result After active treatment and effective nursing,all the patients were improved and discharged.Conclusion Effective nursing is of positive significance to improve the curative effect of Crohn's disease.

Objective To investigate the effect of dexamethasone on the toxicity of bupivacaine in murine neurons.Methods Murine neuroblastoma cell line N2a was obtained from ATCC cell bank (USA). The cells were cultured in 10% fetal cow serum/MEM culture medium and divided into 4 groups voup I control (Con); group II bupivacaine ( Bup); group Ⅲ dexamethasone (Dex) and group IV Dex + Bup. The culture medium contained bupivacaine 900 μmol/L in group Bup and dexamethasone 1 μmol/L in group Dex respectively. In group Dex + Bup ( IV ) Bup was added to the culture medium with a final concentration of 900 μmol/L at 12 h after pretreatment with Dex 1 μmol/L. The cells were inoculated in 24 well plates (0.5 ml in each well, 24 wells in each group) and 10 cm culture dishes (7 ml in each dish, 4 dishes in each group). The release rate of LDH was calculated and the morphology of the cells and nucleus condensation (by Hoechst 3334224 fluorescent staining) was detected at 9 h of incubation in 24 well plates. The mitochondrial transmembrane potential (by JC-1 assay) and phosphorylation of Akt and ERKs (by Western blot) were measured at 5 h of incubation in 24 well plates and in culture dishes respectively. ResultsBupivacaine caused severe damage to the N2a cells as evidenced by increase in LDH release and nucleus condensation (apoptosis), dephosphorylation of Akt and ERKs, decrease in mitochondrial transmembrane potential and severe morphological changes. Dexamethasone pretreatment significantly attenuated bupivacaine-induced neurotoxicity. Conclusion Dexamethasone can protect N2a cells from bupivacaine-induced neurotoxicity through stabilization of mitochondrial transmembrane potential and inhibition of dephosphorylation of Akt and ERKs.