Objective To investigate the effects of probiotics on the occurrence of ovalbumin (OVA) induced food allergy and the regulatory effects on immune function of rat models. Methods Thirty female Brown-Norway rats aged 3 weeks were randomly divided into blank control group,food allergy group and probiotics intervention group(n=10).The levels of serum OVA-IgE and intestinal sIgA were measured by ELISA method.Splenic lymphocytes were isolated and cultured in vitro,and the Treg lymphocyte subgroups in the spleen were analyzed by flow eytometry.The levels of IFN-γ,IL-4 and IL-10 in the supernatant of cultured splenic lymphocytes were measured by ELISA method. Results The serum OVA-IgE level in food allergy group was significantly higher than that in blank control group(P<0.05),while that in probiotics intervention group was significantly lower than that in food allergy group(P<0.05).Compared with food allergy group and blank control group,the level of intestinal sIgA in probiotics intervention group was significantly higher(P<0.05).The percentage of CD4~+CD25~+T lymphoeytes in food allergy group was significantly lower than that in blank contml group(P0.05).The levels of IL-4 and IL-10 in food allergy group were significantly higher than those in blank control group(P<0.05).Probiotics intervention group had significantly lower levels of IL-4,IL-10 and IFN-γ than food allergy group(P<0.05).The ratio of IFN-γ/IL-4 in food allergy group was significantly lower than that in blank control group(P<0.05),while that in probiotics intervention group was significantly higher than that in food allergy group(P<0.05). Conclusion Probioties intervention could prevent the occurrence of food allergy in animal models by modulating the Th1/Th2 eytokine balance.

Objective　To compare the clinical efficiency of intracardiac procedures on traditional cardioplegic arrested-heart and on-pu mp beating-heart for congenital heart disease (CHD) with severe pulmonary hyper tension. Methods　Among all 153 cases, 95 cases underwent operat ions on cardioplegic arrested-heart, while 58 on-pump beating-heart. In arres ted-heart group, 79 cases with ventricular septal defect (VSD), 13 with atria l septal defect (ASD) and 3 with patent ductus arteriosus (PDA) were examined whi le in beating-heart group, 43 cases with VSD, 10 with ASD, and 5 with PDA were examined. Results　There were 12 cases of operative death (12.6%) and 8 of tracheotomy (8.4%) in heart arrested group. No operative death and tracheotomy in beating-heart group. 141 patients were followed up for 3 months to 10 year s with good recovery. There were 2 cases of right heart function failure six yea rs later in arrested-heart group. Conclusion　Results sugges t that on-pump beating-heart technique is superior to traditional cardiopl egic arrested-heart for CHD with severe pulmonary hypertesion. The cause might be t hat on-pump beating-heart intracardiac operation is more effective in cardio pulmon ary protection.

Objective To analysis long-term effects and safety of arsenic trioxide (ATO)-based induction and maintenance therapy in newly diagnosed acute promyelocytic leukemia (APL). Methods Retrospective analysis induction remission and post-remission treatment of 62 newly diagnosed APL patients was performed. These cases were followed up for 5 and 7 years. Results The complete remission (CR) rate was similar in ATO/all-trans retinoic acid (ATRA) induction group and ATRA/chemotherapy induction group.However, the former group has the shorter time to CR. The negative rate of PML-RARα fusion gene after induction without ATO was less than that of ATO group (86.2 % vs 56.3 %, P ＜0.05). After CR, the 5-year overall survival (OS) between ATO-base rotation maintenance group and chemotherapy-base rotation maintenance group showed that the former was (94.4±5.4) %, the latter is (45.5±10.2) %; 7-year OS was (52.5±23.7) % and (27.3±9.3) %; 5-year disease free survivals (DFS) was (94.7±5,5) % and (41.3±10.1) %; 7-year DFS was (52.6±23.7) % and (27.5±9.4) %. There was significant different in 5-year or 7-year OS and DFS between two groups (P ＜0.05). The relapse rates of the two groups in post-remission treatment were 14.7 % and 37.0 % (P ＜0.05). Conclusion ATO combined ATRA induction therapy increased the negative rate of PML-RARα fusion gene. ATO-base rotation maintenance improved long-term outcome and decreased the rate of relapse. Furthermore, ATO appeared to be generally safe and well tolerated.

Altitude ; Heart Rate ; Humans ; Oxygen ; Oxygen Consumption

Objective To investigate the clinical characteristics of the wounded in Wenchuan earthquake transported to our hospital and summarize therapeutic experiences. Methods Clinical data of 92 patients resulted from Wenchuan earthquake admitted into our hospital were reviewed and analyzed in aspects of general data,injury severity,therapeutic methods and clinical results. Results All pa-tients were free from infection,reamputation and fracture-related complication. Conclusion After the arrival of large number of the wounded in the station hospitals.efficient organization of station hospitals,comprehensive evaluation of the patients'condition,effective detailed therapeutic plans and careful man-agement of the medical complications can attain sound results.

Objective To review the three-dimensional characteristics and configuration of cranial base arteries of patients with intracranial berry aneurysms. Methods All the 70 patients with intracranial berry aneurysms (83 cases)were admitted from January to December in 2007. Their images of spiral computer angiography (CT) were presented and analyzed retrospectively. The site, size and figures of aneurysms were recorded, especially the variations of cranial base arteries were analyzed. Results Cerebral anterior communicating artery (ACoA) was the frequent site where aneurysms located. Incidence of ACoA aneurysms was 43.37%(36/83), that of posterior communicating artery (PCoA) was 28.92%(24/83), that of internal carotid artery was 9.64% (8/83), that of middle cerebral artery was 6.02% (5/83), that of A1-A3 was 3.61% (3/83), that of basilar artery was 3.61% (3/83), that of posterior cerebral artery was 2.41% (2/83), that of posterior inferior cerebellar artery was 1.20% (1/83),that of anterior choroidal artery was 1.20% (1/83).The shape of many berry aneurysms was regular. Mutational rate of cranial base arteries among aneurysms were 56.63% (47/83) and ACoA ancurysms with A1 dysplasia rate was 72.22% (26/36). Conclusions The solid shape and vascular variation of intracranial berry aneuryams can be optimally identified by spiral computer angiography. The occurrence of berry aneurysms might be associated with variation of cranial base arteries.

BACKGROUND: It is necessary to establish a high throughput screening system for anti -inflammatory drugs for rheumatoid arthritis.OBJECTIVE: To construct an eukaryotic expression vector p4CCL20-ZsGreen1-DR with the NF-kB cis-acting element 4×CCL20motif as an enhancer, SV40 as a promoter, and ZsGreen1-DR as a reporter gene.METHODS: The target fragment SV40 was PCR amplified using PGL2-control plasmid as a template. KpnⅠ/Bam HⅠ restriction sites were introduced into the flank of the target fragment. Then, pSV40-ZsGreen1-DR vector was constructed by cloning the target fragment into pZsGreen1-DR plasmid. Finally, p4CCL20-ZsGreen1-DR plasmid was constructed by cloning the double strand DNA of 4×CCL20 motif (with BglⅡ and EcoRⅠ sticky ends at the 5’ and 3’ terminus, respectively) into the corresponding restriction sites of pSV40-ZsGreen1-DR vector (upstream of SV40 promoter).RESULTS AND CONCLUSION: DNA sequencing demonstrated successful construction of p4CCL20-ZsGreen1-DR plasmid.The construction of p4CCL20-ZsGreeR plasmid might be useful to establish a high throughput screening system for anti -inflammatory drugs.

Objective To discuss the optimal timing of fixation for femoral shaft fractures with concomitant head injuries. MethodsEarly and delayed complications,mortality rate,interval of ICU and duration of hospital stay were compared among 137 patients with head injuries,so as to evaluate the curative effect of early fixation of femoral shaft fracture(n=56) and delayed fixation(n=81).Results Early fixation group enjoyed advantages in the interval of ICU,duration of hospital stay,associated shock and infection rate over the delayed fixation group(P

Objective To investigate immunological relationship between early induction of food allergy and occurrence of later asthma in mice, and explore the pathological changes in lung tissues. Methods Thirty-seven female BALB/c mice aged 6 weeks were randomly divided into blank control group ( n = 12), food allergy group ( n = 13) and asthma group (n = 12). After being challenged by ovalbumin (OVA), the levels of serum IgE, IL-4 and INF-γ in bronchoalveolar lavage fluid ( BALF) were detected. The numbers of inflammatory cells and eosinophils ( EOS) in BALF were counted. Lung tissues were obtained for pathological sections, and thickness of bronchial wall and EOS infiltration were observed. Results The level of serum IgE and level of IL-4, ratio of IL-4/IFN-γ and number of EOS in BALF in food allergy group and asthma group were significantly higher than those in control group (P <0.05). The level of IL-4 and number of EOS in BALF in asthma group were significantly higher than those in food allergy group (P <0.05) , while there was no significant difference in serum IgE level between these two groups (P > 0.05), and levels of IFN-7 in BALF in both groups were significantly lower than that in blank control group (P<0.05). There were more EOS infiltration in lung tissues and thicker bronchial wall in food allergy group and asthma group than that in blank control group (P < 0.05), and the number of EOS in asthma group was significantly higher than that in food allergy group ( P < 0.05). Conclusion IgE-mediated immune response is involved in both food allergy and asthma mouse models. Lung immune imbalance of Thl/Th2 and inflammatory cell infiltration caused by food allergy may participate in the occurrence of later asthma.

[ABSTRACT]OBJECTIVETo observe the short term effects and adverse effects of induction chemotherapy with Paclitaxel,Cisplatin and Fluorouracil(TPF) in locally advanced squamous cell cancer of hypopharynx. METHODS78 cases locally advanced squamous-cell cancer of hypopharynx form jan 2011 to oct 2013 for the first time treated by TPF scheme,after 2 cycles,to recheck CT scan and evaluate therapeutic effective.RESULTSAll 78 cases patients achieved 156 cycles chemotherapy,CR was 4 cases (5.1%),PR 55 cases (70.5%),SD 17 cases (21.8%), PD 2 cases (2.6%). Total effective rate (CR+PR) was 75.6%,and with low incidence ofⅢ/Ⅳ grade side effect. Logistic regression analysis shows that there is a significant correlation between effective rate and low differentiation cancer.CONCLUSIONFor locally advanced squamous-cell cancer of hypopharynx patients,the TPF chemotherapy scheme showed good therapeutic effective and safety,could be a choice for the induction chemotherapy treatment in locally advanced squamouscell cancer of hypopharynx. The patients with low differentiation cancer may have benefit from the induction chemotherapy.