The aim of the study was to explore the role of NF ?B activation in the pathogenesis of smoke inhalation injury and to evaluate the effects of dexamethasone on NF ?B activation. 130 Wistar rats were inflicted with smoke inhalation injury and randomized equally into the control group, smoke inhalation injury group and dexamethasone treatment group.The expressions of NF ?B P 65 ,I?B ?,TNF ?,and ICAM 1 proteins in the lung tissue were determined by immunohistochemistry at 2,6,12,24,48,72 hours after smoke inhalation injury. The results showed that,after smoke inhalation ,the expressions of NF ?BP 65 ,TNF ?,and ICAM 1 increased,whereas the expression of I?B ? decreased. In the dexamethasone treatment group,the expressions of NF ?BP 65 ,TNF ?,and ICAM 1 were down regulated, and I?B ? was up regulated.These results suggest that NF ?B activation may participate in the pathogenesis of smoke inhalation injury.Dexamethasone could suppress NF ?B activation, thus partially blocked the production of cytokines and adhesion molecules,and in turn reduced the damage of inflammatory response. Therefore NF ?B activation might be a key point in the development of smoke inhalation injury and modulation of activation of NF?B might be a potential therapeutic strategy to treat this injury at the transcription level.

Diabetic cognitive dysfunction is one of the important complications of diabetes mellitus .Insulin plays an important protective role in cognitive function through MAPK and PI 3-K/Akt signaling pathway .Insulin resistance may give rise to excessive tau protein phosphorylation , formation of neurofibrillary tangles inhibits insulin degrading enzyme , reduces the degradation of amyloid β;enhances oxidative stress , further damages the integrity of the neu-ronal structure and function and eventually leads to cognitive dysfunction .

OBJECTIVE: Explore the TGF-beta1 and collagen fibers in chronic nasal sinusitis each type and degree of expression of the normal control group and in the nasal mucosa epithelial tissue remodeling and the role of TGF-beta1 and collagen deposition relationship. METHOD: Sixty-two patients experimental group (CRSwNP of 21 cases. CRSs NP group of 15 cases. 11 cases of recurrent nasal polyps; control group 15 cases specimens for immunohistochemistry and masson collagen staining. Manual counting the number of positive cells by the Mann-Whitney U test to analyze the expression in experimental group and the control group. Experimental group and control group between the single-factor analysis of variance with a One-Way ANOVA analysis. RESULT: Experimental group and control group were expressed TGF-beta1 with collagen deposition. Which, TGF-beta1 in CRSsNP group was significantly lower than the control group (P < 0.05), CRSwNP group was significantly increased compared with CRSsNP group (P < 0.05); masson collagen staining, CRSsNP group was significantly lower than the control group (P < 0.01), recurrent nasal polyps group than in the control group was significantly increased (P < 0.05). TGF-beta1 and collagen staining masson positive correlation between (P < 0.01 ). CONCLUSION TGF-beta1 and collagen deposi tion and chronic nasal-sinusitis tissue remodeling has its relevance. Furthermore. TGF-beta1 expression increased with excessive deposition of collagen fibers also positively correlated.
Adult ; Case-Control Studies ; Chronic Disease ; Collagen ; metabolism ; Humans ; Middle Aged ; Nasal Mucosa ; metabolism ; Rhinitis ; metabolism ; pathology ; Sinusitis ; metabolism ; pathology ; Transforming Growth Factor beta1 ; metabolism ; Young Adult

Objective:To study the protective effect of Huangqi Injection on cardiotoxicity induced by doxorubicin (DOX) and its mechanism. Methods: The molders of Dox-induced myocardial mitochondria damage of rat in vitro and Dox-induced cardiotoxicity in mice were used. The protective effect of Huangqi Injection on cardiotoxicity induced by doxorubicin was determined by biochemical method.Results: Doxorubicin can increse malondialdehyde level, induce mitochondrin swelling and decrease glutathione (GSH) content of myocardial mitochondria of rat in vitro, while all these damages caused by doxorubicin were reduced significantly by Huangqi Injection. Cardiotoxicity of doxorubicin in mice as measured by increases of myocardial malondialdehyde level and serum creatine phosphokinase activity, decreases of superoxide dimutase was significantly alleviated by Huangqi Injection. Conclusions: Huangqi Injection can protect heart against Dox-induced cardiotoxicity, which provides experimental evidence for Huangqi Injection as an anti-tumor adjuvant drug in clinical application.

OBJECTIVE:To establish a method for the determination of the concentration of cefoperazone sodium in cefoperazone sodium / sulbactam sodium in bile by HPLC.METHODS:The bile specimen was collected from the gallbladder of patients during laparoscopic cholecystectomy and the concentration of cefoperazone sodium was determined by HPLC.The separation of cefoperazone sodium was performed on YWG C18 with column temperature at 35℃.The mobile phase consisted of methanol-water-glacial acetic acid(25.5∶74.5∶0.45) with flow rate at 1.0mL?min-1 and UV detection wavelength at 254nm.RESULTS:The linear range of ceforazone sodium in human bile was 1.25～62.5?g?mL-1(r=0.999 1),and its average recovery was 95.14%(RSD=3.42%).CONCLUSION:The above method is simple and reliable,and it can provide bases for clinical rational use of drugs.

Objective To evaluate the safety and effectiveness of immunosuppression regimens,postoperative complications,dead causes and risk factors of lung transplantation (LTx).Methods The immunosuppression regimens and clinical data of 100 patients with end-stage lung diseases receiving LTx in our hospital were retrospectively analyzed between Sept.2002 to Dec.2010.There were 72 patients subject to single LTx and 28 patients to bilateral LTx,amongst them 61 patients received LTx under circulation support,including 5 cases of cardopulmonary bypass (CPB) support and 56 cases of extracorporeal membrane oxygenation (ECMO) support.The immunosuppression regimens including Cyclosporin,mycophemolate Mofeil and corticosteroids were utilized in 53 recipients before the year of 2007,and Cyclosporin was switched to Tacrolimus in 47 patients after 2007.All the patients received Daclizumab or Basiliximab as immunosuppression induction regimens.Results The 1-,2-,3-and 5-year survival rate after LTx was 73.3％,61.6％,53.5％ and 40.7％ respectively.The mean survival time post-transplant in the patients who received Cyclosporin-based regimens and Tacrolimus-based regimens were (36.57 ± 3.44) months and (35.00 ± 2.33) months,repectively,with no significant differences (P＞0.05).The main causes of mortality included primary graft dysfunction (PGD),acute rejection (AR),bronchiolitis obliterans (BOS) and sepsis.The incidence of AR and BOS in Tacrolimus group was significantly lower than that in Cyclosporin grou (P ＜0.05),but the incidence of diabetes mellitus was significantly higher in Tacrolimus group.Analysis of Spearman rank correlation revealed that there was a direct correlation between the incidence of AR and BOS (r =0.340,P＜0.01).The use of circulation support,diagnosis of IPF,postoperative complications such as AR,BOS and infection were associated with decreased survival time postoperatively,in both univariate and multivariate proportional hazards regression models (P＜0.05).Conclusion Cyclosporin-and Tacrolimus-based regimens were both effective immunosuppression strategies postoperatively,Consummate follow-up surveillance and prompt treatment of complications were the key points in prolongation of survival time and improving quality of life after LTx.

Objective On the basis of the investigation and test on professionals and technologists,to put forward the allotment-related encouragement mechanism.correlative principals and measures according to the above-mentioned indexes.to provides policies and measures for the questions generally reflected by professionals and technologists.and to establishes the allotment-related encouragement mechanism with reference of social contribution.Methotis 300 professionals and technologists of provincial academies (institutes) of medical research were surveyed by the questionnaire about following items including:fundomental personal information comprehensive strength of institute:advices of the innovative talent cultivation and soon.The data of the questioaire survey were analyzed and summarized.The valid suggestions were proposed.Results In the provincial academies(institutes)of medical research,57.9% of the professionals and technologists investigated hope to improve their present salary.The anuual income of a research is 30 000 Yuan.which is only one third of the ideal income of 90 200 yuan.Conclusion It is supposed to take regular examination and dynamic management of the professionals and technologists.and then to give performance-related salary treatment ia light of difierent examining results.

Objective To evaluate the clinical effectiveness of the treatment for spinal metastases by cooled microwave ablation combined with percutaneous vertebro plasty(PVP).Methods From February 2014 to January 2017,24 patients with spinal metastases were treated with cooled microwave ablation combined with PVP,including 14 males and 10 females with an average age of 58.2 years (range,32 to 73).Preoperatively all the patients suffered with the local pain and the spinal cord or nerve root compression symptoms.The locations of the lesions included:14 in the thoracic and 10 in the lumbar.The primary tumors type:lung cancer 6 cases,breast cancer 3 cases,liver cancer 2 cases,kidney cancer 2 cases,gastric cancer 1 case,prostate cancer 1 case,ovarian cancer 1 case,osteosarcoma 1 case,fibrosarcoma 1 case,colon cancer 1 case,and unknown source tumor 5 cases.The preoperative Tomita score was 4-7 points (mean 6.3 points),and the Tokuhashi score was 8-11 points (average 9.3 points).23 patients with the spinal metastatic were treated with cooled microwave ablation combined with PVP.1 patient were treated with cooled microwave ablation only.The clinical outcomes were evaluated using visual analogue scale (VAS) and Frankel grading.The local control rate was evaluated by imaging.Resuits All cases were followed up for 5 to 36 months.The tumor volume size was 3.2-12.1 cm3 by preoperative measurement.Each lesion was heated to 3-7 hot zones.Each hot zone was heated for 5 minutes.The total heating time was 15-35 minutes (mean 22.1 minutes).The temperature inside the lesion was (56.2±5.83) ℃.The temperature inside the spinal canal was (33.6±5.14) ℃.The visual analogue scale (VAS) of the 24 patients at 24 hours and 3 months after operation was statistically different from the preoperative visual analogue scale (VAS).The Frankel grading of 19 patients had at least one grade improvement 3 months after operation.6 cases died due to systemic multiple metastases 5-8 months after surgery.9 patients had more than one organ metastasis or bone metastasis during follow-up,and survived with tumors.The remaining 9 cases did not recur or transfer during the follow up period.No nerve damage or other complications were observed in all patients.Conclusion The cooled microwave ablation combined with PVP could relieve the pain in spinal metastases,relieve the nerve compression,and reconstruct the stability,which is a safe and effective palliative surgical method.

BACKGROUND:Removing the posterior ligamentous complexes during posterior lumbar interbody fusion (PLIF) may influence motion and load bearing characteristics of the adjacent segments,contributing to the postoperative instability at the adjacent segment,which is one of the important factors for adjacent segment degeneration.OBJECTIVE:To evaluate the clinical effectiveness of the PLIF plus screw implantation preserving posterior ligamentous complexes under microscope.METHODS:Thirty-six patients with single-level lumbar degenerative disease were enrolled,which were allotted to experimental (n=17) and control (n=1 9) groups,followed by treated with PLIF plus screw implantation preserving posterior ligamentous complexes,and traditional PLIF plus screw implnatation,respectively.The Visual Analogue Scale scores and Oswestry Dysfunction Index at baseline and postoperative 3 months were assessed.The adjacent segment degeneration was observed through radiology during follow-up.RESULTS AND CONCLUSION:The Visual Analogue Scale and Oswestry Dysfunction Index scores in the two groups were significantly lower than those before treatment (P ＜ 0.01),and the postoperative scores in the experimental group were significantly lower than those in the control group (P ＜ 0.01).The adjacent segment degeneration occurred in two cases in the experimental group and 8 cases in the control group during follow-up.Radiology revealed that the internal fixative was stable,none of screw loosening,rupture or pullout.These results suggest that PLIF plus screw implantation with posterior ligamentous complexes can effectively relieve the pain and dysfunction in the lumbar degenerative patients,and reduce the incidence of adjacent segment degeneration.

OBJECTIVE: To explore the role of the innate immune factors TLR2 and TLR4 in the pathogenesis of chronic rhinosinusitis (CRS) by detecting their expression in different clinical types of CRS and the normal control group. METHOD: Immunohistochemistry was used to detect the expression of TLR2 and TLR4 respectively in 21 cases (chronic rhinosinusitis with nasal polyps, CRSwNP) group, 15 cases (chronic rhinosinusitis without nasal polyos, CRSsNP) group, 11 cases recurrent CRSwNP group and 13 cases control group. Positive cells were counted under the microscope artificially, Mann-Whitney U analysis was applied for the ranked data, and one-way anova analysis was adopted to analyze the experimental group and control group. RESULT: (1) TLR2 and TLR4 expression had the same characteristics. Expression mainly concentrated in parts of the whole layer of epithelial basement membrane, cytoplasm of glandular cells, very few inflammatory cells such as monocytes and plasma cells in the cytoplasm, sometimes unknown cell nuclei positive expression. (2) The glandular cells were stained manual counting and color grading. TLR2 and TLR4 packet application Wilcoxon rank test Mann-Whitney U test analysis was not statistically significant (P > 0.05), measurement data within the group variance statistical difference between the groups (P < 0.05). CONCLUSION The Nasal mucosa can produce the innate immune factors TLR2 and TLR4. The different expression of TLR2 and TLR4 in the various clinical types of CRS suggests that they play the certain role in the pathogenesis of CRS.
Chronic Disease ; Epithelial Cells ; immunology ; metabolism ; Female ; Humans ; Immunohistochemistry ; Male ; Nasal Mucosa ; immunology ; metabolism ; Nasal Polyps ; immunology ; metabolism ; Rhinitis ; immunology ; metabolism ; Sinusitis ; immunology ; metabolism ; Toll-Like Receptor 2 ; metabolism ; Toll-Like Receptor 4 ; metabolism