There are significant correlations between cerebral embolism and thyrotoxic atrial fibrillation in patients with hyperthyroidism. The incidence of thyrotoxic atrial fibrillation increases significantly in patients with subclinical hyperthyroidism with serum thyroid-stimula-ting hormone levels ＜ 0. 1 mU/L. Hyperthyroidism may result in cerebral venous thrombosis,moyamoya disease and giant cell arteritis; while hypothyroidism is closely associated with the risk factors of arteriosclerosis, especially hypertension, hyperlipidemia, and hyperhomocysteine-mia. However, this association remains uncertain in subclinical hyperthyroidism.

Objective To discuss the application effects of fast track surgery treatment in hysterectomy. Methods 120 patients underwent hysterectomy. They were randomly assigned to two groups,namely,fast track sur-gery group(60 cases) and control group(60 cases ). two groups underwent separately fast track surgery mode and tradi-tional mode therapy. To observe the duration of passing flatus, the hospital stay, the aching time, the complication rate after operation between two groups. Results All patients got recovery. The duration of passing flatus(29.2±7.9) h,the aching time 96.7% (58/60)、the hospital stay( 3.9±2.5 )d of fast track surgery group were significantly shorter than the duration of passing flatus (50.3±15.8 ) h 、the aching time 8.3% (5/60)、the hospital stay (6.7±2.8 ) d of control group( allP<0.01 ). there was no severe complication in two groups. Conclusion Fast track surgery treat-ment mode could accelerate postoperative rehabilitation of hysterectomy patients. It shoud be popularized.

Dendritic cells (DCs) have different subtypes with distinct phenotypes and biological functions. Meloyiod dendritic cell subtype is one of the most important DCs subtypes. Recent studies have revealed that human monocytes were composed of CD14++CD16-and CD14+CD16+ subtypes,and mouse monocytes consisted of CD115+Ly6Chigh and CD115+Ly6Clow/-subtypes. Different monocyte subsets differentiate into different dendritic cells subsets with distinct phenotypes and induce different types of immune responses in vivo or in vitro. Under steady state,mouse CD115+Ly6Clow monocyte subtype is an important precursor of dendritic cells in peripheral organs and tissues,but in inflammatory response,CD115+Ly6Chigh monocyte subtype is the main precursor of dendritic cells in peripheral lymphoid organs. CD115+Ly6Chigh monocyte derived dendritic cells can directly present antigens that acquired in peripheral tissues after differentiating into dendritic cells,and transfer their MHC-Ⅰ/peptide complex to residential dendritic cells as well. The cooperation and interaction of dendritic cells from different sources enable the immune system to respond to different stimuli properly.

requirement of medical materials for hemolysis experiment (<5%) .MTT assay showed that , after 4 days of culture , the optical densi-ties were 0.498 ±0.218 and 0.566 ±0.266 in the 120℃12 h and 24 h groups and 0.668 ±0.268 and 0.769 ±0.213 in the 150℃12 h and 24 h groups, while after 8 days, the optical densities were 0.767 ±0.267 and 0.836 ±0.236 in the 120℃12 h and 24 h groups and 0.765 ±0.265 and 0.903 ±0.303 in the 150℃12 h and 24 h groups, all significantly higher than in the non-CaTiO3 group at 4 (0.341 ±0.143) and 8 days (0.731 ±0.121) (P<0.05). Conclusion The CaTiO3 coating on titanium is neither mutagenic nor hemolytic and has no toxicity on osteoblasts .Instead, it can promote the proliferation of osteoblasts , and therefore is a valuable coating material for implants .

Purpose To analyze the imaging manifestations of solitary fibrous tumors (SFT) so as to improve its diagnosis. Materials and Methods The CT and MRI findings of 24 patients with SFT confirmed pathologically were analyzed retrospectively and compared respectively with their pathological results in terms of lesion's location, size, shape, density (signal), type of enhancement and relationship with the surrounding tissues. Seven patients underwent MRI scan, 5 were with enhanced scan; 17 patients were carried out plain CT scan and 11 were with enhanced CT scan. Results The lesions in the 23 cases were solid and 1 was solid and cystic. Through the imaging diagnosis, 20 cases were diagnosed as benign tumors, 2 cases were diagnosed as malignancies, and 2 benign tumors were misdiagnosed, which showed that the diagnose accordance rate was 91.7%(22/24). On plain CT scans, 5 lesions (maximum diameter<4 cm) showed homogeneous density; 7 cases (maximum diameter>5 cm) showed heterogeneous density, 4 of which had calcification and 7 had necrosis; the shapes were round-like or lobulated. On enhanced CT scans, 5 cases presented progressive enhancement pattern, 5 cases showed fast-in and slow-out pattern, 1 case showed slight enhancement pattern. On MRI scan, 4 cases of the solid part of tumors showed isointensity signals on T1WI and isointensity or slight hyperintensity signals on T2WI, 3 cases showed isointensity or low signals on T1WI and low, isointensity or slight hyperintensity signals on T2WI, and slight hyperintensity signal on DWI, the solid part of tumors were strongly enhanced. Two malignant tumors presented features like heterogeneous density, unclear boundary, invasive growth and progressive enhancement pattern. The pathological findings demonstrated that the tumor tissues mainly consisted of spindle cells with rich fibers and vessels. Conclusion The imaging findings of benign and malignant SFT have certain features, malignant SFT have invasive growth signs. The obvious progressive enhancement of solid component which shows isointensity and hyperintensity on T1WI or T2WI may be helpful in the diagnosis of SFT; however, the final diagnosis should be confirmed with histopathology.

BACKGROUND:The etiological factor for rheumatoid arthritis remains unclear, but the effects of nuclear factor-κB on the onset of rheumatoid arthritis have been gradual y paid great attention by rheumatologists.
OBJECTIVE:By using the RNA interference (RNAi) technique to block the signal pathway of nuclear factor-κB
mRNA of human rheumatoid arthritis synovial cells, this study explored its application prospect in the treatment of rheumatoid arthritis.
METHODS:The synovial cells were isolated, digested, and cultured for further use. In accordance with the
design principle of smal interfering RNA (siRNA), target sequences of siRNA of nuclear factor-κB were identified, and siRNA expression vector of nuclear factor-κB was synthesized and constructed. The four pGenesil-1/nuclear factor-κB siRNA expression vectors were transfected into the first passage of synovial cells that wel grew. Blank and negative control groups were set. cells at 12, 24, 48, 72 hours, 5 and 7 days after transfection were col ected, and RNA was extracted. Intracellular nuclear factor-κB mRNA expression levels were measured, and siRNA plasmid vector that could effectively inhibit nuclear factor-κB mRNA expression was screened out.
RESULTS AND CONCLUSION:Nuclear factor-κB highly expressed in synovial cells after human rheumatoid arthritis. 3#pGenesil-1/nuclear factor-κB apparently suppressed nuclear factor-κB mRNA expression in synovial cells with human rheumatoid arthritis. RNAi technique blocked nuclear factor-κB mRNA expression. Therefore, the block of nuclear factor-κB signal pathway might be a good target for rheumatoid arthritis gene therapy.

AIM　To study the effect of glucocorticoid acetic acid cortisone on expression of CaM mRNA in hypothalamus-pituitary-adrenal axis (HPAA). METHODS　Using reverse transcription polymerase chain reaction (RT-PCR),the expression of CaM mRNA was measured in HPAA of rats which were injected with acetic acid cortisone. RESULTS　Acetic acid cortisone induced the expression of CaM mRNA in hypothalamus and adrenal respectively, but it had no effect significantly in pituitary. CONCLUSION　These data suggest that CaM mRNA plays important role in the modulation of GC in HPAA.

Objective To determine the characteristics of early cognitive dysfunction and N300 event-related potentials(ERPs)in patients with acute cerebral infarction(ACI).Methods Thirty patients with ACI and thirty normal healthy elderly people were studied.The two groups were examined with a picture recognition test and EEG waveforms were recorded.The ERPs were analysed statistically.The mini-mental state examination(MMSE) was used to evaluate cognitive function,and the results were correlated with the ERPs. Results The average MMSE scores of the ACI and control groups were significantly different.Reaction times(RTs)in the picture recognition test were(798.63±49.32)ms in the ACI group and(765.21±35.67)ms in the control group,a difference significant at the 5% confidence level.The average accuracy rates,(59.75±8.45)%and(65.26±9.28)%,were also significantly different.Average N300 ERPs the in the ACI group were significantly lower than those in the control group,and the average latencies were significantly longer.Both latency and amplitude in the ACI group showed a linear correlation with MMSE scores. Conclusion The ERPs of ACI patients have some clinical significance,and can be used as a scale-based assessment of cognitive function.

AIM To study the effect of glucocorticoid acetic acid cortisone on expression of CaM mRNA in hypothalamus pituitary adrenal axis (HPAA). METHODS Using reverse transcription polymerase chain reaction (RT PCR),the expression of CaM mRNA was measured in HPAA of rats which were injected with acetic acid cortisone. RESULTS Acetic acid cortisone induced the expression of CaM mRNA in hypothalamus and adrenal respectively, but it had no effect significantly in pituitary. CONCLUSION These data suggest that CaM mRNA plays important role in the modulation of GC in HPAA.

Objective To investigate the clinical characteristics of invasive pneumococcal disease (IPD) and its drug resistance among children under the age of 5 years.Methods Clinical characteristics of 45 children of IPD admitted to the Shengjing Hospital of China Medical University from 2009 to 2010 and antimicrobial non-susceptibility results were analyzed retrospectively.Results Forty-five cases of IPD were confirmed by positive culture of sterile body site,most of which occurred between April and June.Most of the IPD children were below the age of 2 years,which accounted for 66.7％ (30/45).The disease spectrum included bacteremia in 32 cases (71.1％),encephalitis in 9 cases (20.0％),empyema in 23 cases (51.1％),necrotizing pneumonia in 10 cases (22.2％).Pneumococcal non-susceptibility to erythromycin were found to be 100％,to clindamycin were 95％,to tetracycline were 95.12 ％,to trimethoprim-sulfamethoxaole were 80.49％,to chloramphenicol were 18.18％,while pneumococcal resisitanse to rifampicin,quinolones and vancomycin were 0.Eight of eleven and 18/24 were found to be pneumoccal resistance to penicillin and cephalosporin respectively and their minimum inhibitory concentrations were high.Twenty five cases were cured (55.6％).Fifteen cases were improved (33.3％).Four cases died (8.9％).One cases was retreated.All cases of death were under the age of 2 years.Conclusion IPD is more common with a high mortality rate among those under the ages of 2 years.Poor outcome is associated with Streptococcus pneumoniae resistance to antibiotics.