Animals ; Apoptosis ; Cell Death ; Humans ; Necrosis

For a preliminary study of the role of beta-catenin/Tcf signaling in squamous differentiation of airway (tracheobronchial) epithelial cells, a stable mutant of beta-catenin was transfected into primarily cultured porcine airway epithelial cells. Western blotting revealed that exogenous protein was observed in large quantity in cytoplasm and nucleus. When co-transfected with Tcf luciferase reporter plasmids, beta-catenin mutant increased the reporter's transcriptional activities. However, mRNA expression of a squamous differentiation marker, small proline-rich protein (SPRP), was not elevated, as shown by reverse transcription-polymerase chain reaction. These findings suggest that beta-catenin/Tcf signaling may not be directly involved in the squamous differentiation of porcine airway epithelial cells.
Cell Differentiation ; Cell Nucleus/metabolism ; Cells, Cultured ; Cornified Envelope Proline-Rich Proteins ; Cytoplasm/metabolism ; Epithelial Cells/cytology ; Epithelial Cells/*metabolism ; Membrane Proteins/metabolism ; Mutation ; RNA, Messenger/metabolism ; Reverse Transcriptase Polymerase Chain Reaction ; Signal Transduction ; Swine ; Trachea/cytology ; Trachea/*metabolism ; Transcription, Genetic ; beta Catenin/*metabolism

Objective To investigate the effect of pretreatment with parecoxib for postoperative analgesia in patients undergoing laparoscopic hernia repair. Methods Sixty patients undergoing laparoscopic hernia repair were assigned in two groups by random digits table with 30 cases each. The patients in pretreating group received parecoxib 40 mg intravenously before anesthesia, and in control group with the same capacity of normal saline. All patients were anesthetized with combined spinal epidural blockage and tranquilized with pethidine, droperidol and diazepam. Postoperative pain of the abdomen incision was assessed by visual analogue scale (VAS) and the pain of shoulder or back was judged by a 4 grade scale. Side-effects, supplement analgesic, passage of gas by anus 24 h after surgery were observed as well. Results The abdomen incision VAS at 4,8,12,24 h after surgery in pretreating group were lower than those in control group (P ＜ 0.05). And the incidence of pain of shoulder or back was lower in pretreating group (13.3% ,4/30) than that in control group (33.3% ,10/30)(P ＜0.05). While the cases needing supplement analgesic also decreased in pretreating group (13.3% ,4/30) compared with control group (40.0%, 12/30)(P ＜ 0.05). And the side effects and passage of gas by anus 24 h after surgery had no significant difference in two groups. Conclusion Pretreatment with parecoxib in patients undergoing laparoscopic hernia repair may relieve the postoperative incision pain and the pain of shoulder or back while reducing the analgesic supplement without side effects.

Objective To assess clinical results between proximal-first sequential anastomosis technique (POPCAB) and conventional technique off-pump coronary artery bypass grafting(COPCAB) in 72 patients over 65 years old.Methods Between Jan 2008 and Oct 2012,72 patients with multiple vessel coronary artery disease underwent off-pump coronary artery bypass grofting.They were divided into two groups,POPCAB and COPCAB groups.Preoperative and postoperative variables of two groups were compared.Results There were no significant difference in sex,age,history of acute myocardium infarction,hypertension,diabetes and number of bypass grafts between two groups.The ICU stay time in POPCAB group was less than in COPCAB group(P ＜0.05).There were lower creatine kinase MB and cardiac trop I after operation in POPCAB group compared with COPCAB group(P ＜ 0.05).Conclusion The results confirm that promixal-first sequential anastomosis technique remains a valuable option of surgical myocardial revascularization,and may optimize the outcome in the aged.

Adolescent ; Adult ; Aged ; Aged, 80 and over ; Balloon Occlusion ; Child ; Emergency Treatment ; Epistaxis ; therapy ; Female ; Hemostasis ; Humans ; Male ; Middle Aged ; Young Adult

The possibility that a recombinant protein vaccine based on xenogeneic homologous FGFR-1 of chicken induces production of autoantibodies against self-FGFR-1 in BALB/c mice was examined by using ELISA, Western blot analysis and ELISPOT assay respectively. Autoantibodies against mouse FGFR-1 were identified by Western blot analysis and ELISA. Compared with the two control groups, the number of APBCs, which were detected by ELISPOT assay, was significantly increased in the spleens of mice immunized with cFR1 (P < 0.05). IgG1 and IgG2b, which were detected by ELISA, were the major subclasses and were substantially increased in response to chicken FGFR-1 when compared with control group. The recombinant chicken FGFR-1 protein used as a vaccine can induce autoantibodies against self-FGFR-1 in mice and provide a basis for the active immunotherapy of tumor angiogenesis.

Objective To investigate the expression and significance of mRNAand exon mutationof NT5C2 gene in acute lymphoblastic leukemia (ALL) bone marrow.Methods Case control study design was used in this study.Bone marrow samples were collected from ALL patients in Anhui Provincial Cancer Hospital in recent 4 years.The patientswere divided into the initial diagnosis group , the complete remission group and the recurrence group.And they could specifically be divided into 36 patients initially diagnosed, 36 patients who achievedcomplete remission and 16 patients who relapsed with children B -ALL,15 patients initially diagnosed,15 patients who achievedcomplete remission and 9 patients who relapsed with children T -ALL, 18 patients initially diagnosed,18 patients who achievedcomplete remission and 12 patients who relapsed with adult B-ALL, and 11 patients initially diagnosed,11 patients who achievedcomplete remission and 6 patients who relapsed with adult B -ALL.The initial diagnosis,complete remission and recurrence samples were matched.8 children and 8 adults without hematologic malignanciewere used as controls .Real-time PCR was performed to detect the level of NT5C2 mRNAin ALL patients.The exons of NT5C2 gene were cloned and sequenced for the common mutations in all cases .The results of NT5C2 mRNA levels in different groups were performed using non -parametric test by SPSS16.0 analytics software, and then non-parametric test together with correlation analysis was analyzed between NT 5C2 mRNA levels of different initial diagnosis groups and gender, age, leukocyte level and risk classification .Results (1)The expression of NT5C2 mRNA levels of recurrence group were higher than that of initial diagnosis group ,complete remission group and controls in children and adult B -ALL respectively(P <0.01).(2)NT5C2 mRNA expression in children and adult T-ALL showed no difference in initial diagnosis ,complete remission, recurrence group and controls (P >0.05).(3)NT5C2 mRNA expression of initial diagnosis group in children and adult B -ALL and T-ALL was not correlated with risk classification (P >0.05).(4)A newheterozygousmutation p.P414A of NT5C2 was discovered in a recurrencesample.Conclusions (1) High expression ofNT5C2 mRNA is associated with recurrence inchildren and adult B-ALL, and it may be an indicator of monitoring recurrence .(2)The incidence of exons mutation of NT5C2 gene in ALL is low in China.

To explore the anti-tumor effect of immunotherapy with recombinant protein vaccine based on FGFR-1 of chicken (cFR-1) in a mouse Meth A fibrosarcoma model, tumor volume and survival rate of the mice were observed at a 3-day interval. Microvessel density (MVD) was detected by immunohistochemistry. Auto-antibodies against self-FGFR-1 were detected by Western blotting and ELISA, respectively. The anti-FGFR-1 antibody-producing B cells (APBCs) were detected by enzyme-linked immunospot (ELISPOT) assay. Eighteen days after inoculation of tumor cells, the tumor volume was significantly smaller in cFR-1-immunized group than in mouse FGFR-1 (mFR-1) immunized group and normal saline (NS) control group (P<0.05), and the survival time was significantly longer in cFR-1-immunized group than in the control groups (P<0.01). MVD was significantly lower in cFR-1-immunized group than in mFR-1-immunized group and NS group (16.8+/-5.6 vs 64.6+/-1.8 and 59.6+/-8.7, P<0.01). Antibodies against self-FGFR-1 were found in mFR-1-immunized group, the major antibody subclasses were IgG1 and IgG2b. Compared with the two control groups, the numbers of APBCs in cFR-1-immunized group were significantly increased (P<0.01) These results demonstrated that the cFR-1-related anti-angiogenesis protein vaccine could induce the production of auto-antibodies against self-FGFR-1, which futher inhibit angiogenesis and growth of solid tumor.

Cerebral hyperperfusion syndrome is a rare but life-threatening complication after carotid endarterectomy and carotid artery stenting. If it is not identified and adequately treated in time, it may cause severe neurological impairment or even death due to cerebral edema or cerebral hemorrhage. This article reviews the risk factors, pathophysiological mechanisms, clinical manifestations, imaging diagnosis and treatment of cerebral hyperperfusion syndrome.

Objective Ischemic stroke with elevated serum immunoglobulin E ( IgE) in some young patients is regarded as cerebral vasculitis clinically though without sufficient pathological evidence .This study was to investigate the characteristics of vascular lesions in these patients by temporal artery biopsy . Methods We performed histopathologic examinations on the temporal arteries of 32 young ischemic stroke patients with unknown etiology , 16 with normal and the other 16 with elevated serum IgE .We observed inflammatory cells infiltration and mast cells by HE staining and toluidine blue stai-ning respectively and determined the expressions of matrix metalloproteinase -9 (MMP-9), monocyte chemotaxis protein -1 (MCP-1) and serum IgE by immunohistochemistry . Results Compared with the patients with normal IgE , those of the elevated IgE group showed a significantly higher rate of inflammatory cells infiltration (12.5%vs 62.5%, P<0.01), with 1 case of focal necrosis and fi-brinous exudation in the adventitia in the latter group .The average optical density ( OD) of monocyte chemotaxis protein-1 ( MCP-1) in the temporal artery was also dramatically higher in the elevated IgE group than in the normal controls ([9.25 ±5.79] ×10 -5 vs [4.41 ±2.87] ×10 -5, P<0.01).The average OD of matrix metalloproteinase 9 (MMP-9) and intima-media thickness were both increased in the elevated IgE group ([32.79 ±21.38] ×10 -4 and [0.25 ±0.06] mm) but showed no statistically significant differ-ence from those in the normal IgE group ([25.23 ±12.78] ×10 -4 and [0.22 ±0.06] mm) (both P>0.05).Nor was any signifi-cant difference observed in the number of the mast cells between the normal and elevated IgE groups (2.8 ±1.5 vs 3.6 ±2.3, P>0.05). Conclusion The infiltration and necrosis of inflammatory cells and fibrin exudation in the temporal artery of the young pa-tient with elevated serum IgE are likely to be the manifestations of vasculitis , and MCP-1 may play a role in the pathogenesis of the disease.