Objective:To investigate the role and its mechanism of Toll-like receptor4(TLR4) mutation on acute lung injury induced by hemorrhagic shock without resuscitation.Methods:The hemorrhagic shock model of 20 toll-like receptor 4(TLR4) mutant mice and 20 wild type mice(CBA) was reproduced by heart puncture.The lung tissues were collected at 0,1,2,4,and 6 hours after hemorrhagic shock for pathologic analysis,TLR4 mRNA was measured by semi-quantitative reverse transcription-polymerase chain reaction and NF-?B activation was determined by electrophoretic mobility shift assay.Results:The lung neutrophil infiltration and erythrocyte effusion in toll-like receptor 4 mutant mice were milder than those in wild type mice.The expression of TLR4 mRNA and activation of NF-?B were increased following hemorrhagic shock in wild type mice,while there was no significant change in TLR4 mutant mice.Conclusion:TLR4 plays an important role in ALI induced by hemorrhagic shock,and TLR4 mutant alleviates ALI.

Objective] To conclude Yan Zhongqing clinical academic experience. [Methods] Discussed in terms of etiology and pathogenesis, treatment, therapies of Yan Zhongqing teacher using classical treatment of insomnia clinical experience, herbal prescription summed up its characteristics, citing the case evidence. [Results] Yan Zhongqing teacher believes that the main pathogenesis of this disease is not paying for the yin yang, and heart, lung, liver, kidney closely linked to inadequate blood deficiency and liver yang common causes of insomnia are caused clinically. The main syndromes of heart and lung deficiency heat, heart and kidney Huo, heart and liver blood deficiency, lack of liver stagnation of liver-yang, etc., are used to support the heart and lungs, cooling heat; yin and clearing fire, balance between kidney and heart; Yin and Yang blood, Anshen; liver qi, yang Yixin of the law, and achieves better therapeutic effect on clinical practice. [Conclusion] With appropriate clinical prescription of Mr. Yan, the treating method has clinical value.

Objective To explore the criterion of constitution with Yin-deficiency and provide the evidence for further development of establishing the criterion.Method According to reference documents on TCM,a questionnaire on the criterion of constitution with Yin-deficiency was developed and distributed to 51 experts of TCM in Zhejiang province.Results The mean scores of forty-six items ranged from 2.02 to 2.78 and top sixteen symptoms were dry mouth,dry stools,dry throat,feverish palms and soles,thready pulse,constipation,emaciation,yellowish urine,red tongue,rapid pulse,vertigo,thirst with preference for cold drinks,vexation,dry lips,little coating,thirst with frequent drinking.Modes of 46 items ranged from 1 to 4.Coefficients of weight for diagnosis ranged from 0.018 to 0.024 and variance of coefficients were from 0.540 to 1.572.Conclusion Forty-six items could become the content of the criterion of constitution.

The data of 173 cases with acute mastitis were collected and reviewed from January 2010 to October 2012.The liquor puris samples were collected for bacterial culture.And drug sensitive test was performed by Kirby-Bauer method.98 samples were cultured with a positive rate of 56.7％.A total of 98 bacterial strains were isolated,Gram-positive bacteria were 91 strains (92.9％) and Gram-negative 7 strains (7.1％).The most common bacteriun Staphylococcus aureus,accounted for 83.7％ was highly resistant to penicillin and erythromycin with resistant rates of 90.2％ and 86.6％ respectively.And there was no resistance to vancomycin and teicoplanin.

Objective To investigate the clinical value of multi-slice spiral CT (MSCT)in diagnosis of internal abdominal hernia (IAH).Methods The MSCT findings in 1 5 patients with IAH confirmed by surgery were retrospectively analyzed.Results MSCT showed intestinal obstruction in 14 patients with strangulating intestinal obstruction in 8.The typical features of MSCT were as follows:translocated position of intestines (occupying effect),closed loop intestinal obstruction (gathered intestinal loops with different forms),assembled,expanded and translocated blood vessels of mesenteries,and thickened intestinal walls with ischemic edema and abnormal density.Surgical results showed paraduodenal hernia in 2,transomental hernia in 2,transmesenteric hernia in 5,ankylenteron strap hernias in 4,pericecal hernia in 1 and hernia through the Douglas fossa in 1,Intestinal obstruction in 14 and strangulating intestinal obstruction in 8 were also confirmed by surgery.The CT findings of IAH were correlated with the surgical results,and the accurate rate of grading of intestinal obstruction with CT was also consistent with the surgical results (Kappa=0.758,t=3.462,P=0.001).Conclusion IAH can be diagnosed accurately by MSCT in most patients,MSCT is helpful for guiding the surgical programs.

Objective To study whether the leakage of polymethylmethacrylate (PMMA) can lead to pulmonary embolism in vertebroplasty (VP), and to observe the correlation of embolism degree with the doses of PMMA. Methods Fifteen canines were randomly divided into 3 groups: group A, B, C, and were injected 0.5, 1.0, 2.0 ml PMMA into the femoral veins, respectively. Before and after the injection, chest CT and angiography of pulmonary artery were performed, the pressure of pulmonary artery was measured, and the blood gas analysis of femoral artery was done. At last, the canines were euthanized and examined and histologically after HE-stained. Results In group C, the pressure of O_2 decreased obviously, and significant difference was found between before and 10 min after injection (P<0.05). The pressure of CO_2 increased quickly in group C, significant difference was detected between before and 1 min after injection (P<0.05). Pressure of pulmonary artery in both group B and C were significantly different between before and after injection (P<0.05). Conclusion The leakage of PMMA can lead to pulmonary embolism. The degree of pulmonary embolism is correlated to the doses of PMMA. The large dose of bone cement leakage can lead to disorder of respiratory function.

AIM To provide toxicokinetics data for toxicity studies of repeated doses of sodium 9-[2-(phosphonomethoxy) ethyl] adenine (PMEA-Na). METHODS The concentrations of PMEA-Na in plasma and urine were determined by HPLC/MS/MS method after single and multiple iv administrations in dogs. Data were executed by the statistical moment method to acquire the toxicokinetics parameters. Serum biochemical tests and histopathological examination were performed. RESULTS The system exposure of PMEA-Na in dogs was dose-dependent over the dose range of 1.0-6.0 mg·kg-1. The areas under the plasma concentration-time curve of PMEA-Na after single and multiple iv administrations at 1.0, 3.0 and 6.0 mg·kg-1 dosage were (2.3±0.5), (8.4±1.6), (17.5±3.7) and (5.0±0.4), (15.9±3.2), (30.3±4.7)mg·L-1·h, respectively. The urinary excretion of PMEA-Na in 72 h after iv administration was (87.0±4.8)% at the dose of 3.0 mg·kg-1. In 6.0 mg·kg-1 dose group, liver enzyme activity of glutamic-pyruvic transaminase and serum levels of total bilirubin, blood urea nitrogen, creatinine and triglycerides were all significantly elevated; glucose level significantly decreased comparing with the control group. Histopathological observation showed distinct pathological changes in liver and kidney tissues of 6.0 mg·kg-1 dose group. CONCLUSION There was evidence of toxicity after repeated-dose (14 d) of PMEA-Na in dogs and the major toxicity target organs were the kidney and liver.

Objective To evaluate the value of proton magnetic resonance spectrum (1H-MRS) in the differential diagnosis of Alzheimer's disease (AD) and vascular dementia (VD) patients with white matter lesions (WMLs).Methods Multi voxel 1H-MRS were performed to 30 patients with AD,30 patients with VD,and 30 normal control volunteers.The levels of the N-acetylaspartate (NAA),myo-inositol (mI),glutamate (Glu),and creatine (Cr) were measured in the white matter adjacent to the lateral ventricles.The ratios of NAA/Cr,mI/Cr and Glu/Cr were calculated and compared among the group.Comparisons of the 1H-MRS indexes among AD,VD and NC group were conducted by one-way ANOVA.Results NAA/Cr ratios of the region of interesting in AD (1.59±0.15)and VD(1.53±0.12) group were significantly decreased compared with NC (1.79±0.22)group (P＜0.05),and Glu/Cr ratios of the region of interesting in AD(0.41±0.03) and VD(0.49±0.04) group were significantly decreased compared with NC(0.57±0.05) group (P＜0.05).However,there were not significant differences for NAA/Cr ratios of the paraventricular white matter region between AD and VD group (P＞0.05),and Glu/Cr ratios in AD and VD groups were significantly different (P＜0.05).A significantly increased mI/Cr was found in AD (0.68±0.05) group than in VD(0.57±0.04) and NC(0.55±0.03) groups (P＜0.05),and there were no significant changes in mI/Cr ratios between VD and NC groups (P＞0.05).Conciusion Multi-voxel 1H-MRS is an effective method in the differential diagnosis of dementia,and changes of the mI/Cr and Glu/Cr ratios of the white matter adjacent to the lateral ventricles may help to identify the AD and VD patients.

Objective To explore the multi-modal MRI characteristics of breast cancers in dense breasts.Methods 120 patients with breast cancer shown on mammography underwent breast MRI,which were solitary and confirmed by pathological examination. According to the BI-RADS classification of breast,the 120 cases were divided into two groups including dense type breast and non-dense type one.The differences in morphological features,ADC values (b=1 000 s/mm2 )and time-signal intensity curve (TIC)of the lesions between two groups were analyzed and compared.Statistical analysis was performed using SPSS1 6.0.Results The breast cancers in dense breast were vulnerable to have a spiculated margin (44/68 in the dense breast group vs.1 6/52 in the non-dense breast group,P =0.000).The size of the lesion in dense breast (1.83 ±0.98)cm was bigger than that in non-dense breast (1.40±0.46)cm (P =0.005).The non-mass-like enhancement of the lesion in dense breast was much more than that in non-dense breast (P =0.000).In addition,the average ADC values of the lesion in dense breast (0.89±0.12)×10 -3 mm2/s were lower than in non-dense breast (0.95±0.10)×10 -3 mm2/s(P =0.01 6).Conclusion The breast cancer in the dense breast has different MRI findings in comparison with non-dense breast.

Objective To study the injury and protective action of drugs on neurons, the model of glutamate excitotoxicity on primary cultured hippocampual neurons from new born rats were( set up. Methods)By use of trypan blue dye staning and testing the lactate dehydrogenase leakage from cultured neurons, to investigate the neuron survival rate. Results We found the injury of neurons was related with the concentration of glutamate. NMDAR non-competitive antagonist —MK-801 could protect the glutamate excitotoxic damage on neurons. Conclusion The glutamate results in neuron injury through NMDAR; the model of neuron culture was sufficient for glutamate-induced excitotoxicity.