Objective: To explore how to set up the service management center of ventilators depending on department of respiratory medicine , how to perfect daily management of ventilators, how to rationally and timely allocate ventilators ,how to reduce the fault of ventilators and ensure the safe use of ventilators, and how to cost savings of purchasing ventilators. Methods: To figure out and compare data of before and after the establishment of the service management center of ventilators in 2010 and in 2012. Results: Non machine failure rate was 42.86% in 2012 and 69.35% in 2010, had remarkably decreased. At the same time, the total failures have decreased significantly. Conclusion: Setting up the service management center of ventilators depending on department of respiratory medicine have achieved timely allocation ventilators, have improved the level of medical personnel of using ventilators, have ensured the safe use of ventilators, have cost savings of purchase ventilators, have reduced the fault of ventilators.

This article expounds the molecular biological characteristics and signaling pathw ay of Tol -like receptor 2 and investigates its advances in research on the roles of neuronal and blood brain barrier damage after cerebral ischemia.

Objective:To study CT and MRI radiological expression of benign and malignant meningiomas to provide a reliable evidence for clinical surgery scheme determination. Methods: The radiological and pathological data of 40 cases with meningiomas undergoing surgery in hospital were analyzed, and the benign and malignant lesions of meningiomas were judged according to imaging features such as meningioma shape, edge, signal or density, peritumorous edema, intratumorous calcification, multiple tumors, tumor brain interface status etc.Results: (1)Tumor signal or density: T1 signal inhomogeneous in 6 cases(15.0%), T2 signal inhomogeneous in 8 cases(20.0%), the signal homogeneous in 26 cases (65.0%), CT density is inhomogeneous in 15 cases(37.5%), CT density is homogeneous in 25 cases(62.5%); (2)Tumor edge: regular in 27 cases(67.5%), coarse, irregular, lobulated, with mural nodules in 13 cases(32.5%); (3)Dural tail sign in 36 cases (90.0%); (4)Skull invasion in 6 cases(15.0%); (5)Calcification within the tumor in 7 cases(17.5%); (6)Peritumoral edema in 14 cases(35.0%); (7)Multiple tumors in 6 cases(15.0%); (8)Enhance performance: Obvious homogeneous enhancement in 27 cases(67.5%), Obvious inhomogeneous enhancement in 13 cases(32.5%).Conclusion: Benign and malignant meningiomas with a certain radiological feature, the curative effect and prognosis may be properly evaluated by the radiological expression of meningiomas.

ObjectiveTo investigate the clinical efficacy of focused ultrasound for treating non-neoplastic epithelial disorders of vulvar. Methods212 patients with non-neoplastic epithelial disorders of vulvar were treated with focused ultrasound. The patients were followed up after the treatment,and symptom was observed and the efficacy was evaluated. ResultsThe efficacy of non - neoplastic epithelial disorders of vulvar of squamous hyperplasia,lichen sclerosus and mixed dystrophy was 99.2％, 100. 0％, 88.9％ respectively, the difference was not significat (P ＞ 0.05 ). The efficacy in different courses of patients was 100.0％ ( ＜ 2 years), 100.0％ (2 ～10 years) ,91.3％( ＞ 10 years) respectively,the difference was not significat( P ＞ 0.05). ConclusionFocused ultrasound was obviously effective in the treatment of patients with non-neoplastic epithelial disorders of vulvar.

Objective To observe the activation effect of histamine on mast cells in the acupoint area and its analgesic effects similar to acupuncture stimulation,so as to reveal the underlying mechanism of acupoint injection therapy.Methods A total of 60 SD rats were divided into control,model,normal saline(NS),histamine-injection and acupuncture groups(12 rats/group).Acute adjuvant-induced-arthritis(AIA) model was duplicated by injection of complete Freunds' Adjuvant(0.05 mL) into the left ankle articular cavity.For rats of saline and histamine groups,normal saline(50 ?L) and histamine(50 ?L,100 ?g/mL) were injected into the left "Zusanli"(ST 36) acupoint area.For rats of acupuncture group,manual acupuncture(lifting-thrusting and twisting needle intermittently) was applied to ST 36 for 20 min.Paw withdrawal(pain threshold,PT) was detected by radiant heat irradiation of the hindpaw.Skin and muscle tissues of ST 36 area were sampled to be fixed in formalin,then,sliced(5 ?m),and stained with Toluidine Blue,separately,followed by counting the degranulation rate of mast cells under microscope.Results Compared with normal control group and pre-modeling,PT of model,NS,acupuncture and histamine groups decreased significantly(P

OBJECTIVE:To promote the adjustment of National Essential Drug List and implementation of Essential Drug List. METHODS:National Essential Drug List was compared with Essential Drug List issued by WHO. Retrieved from statistical results conducted by State Food and Drug Administration, the problem that there were large number of drug in China while little category were included in National Essential Drug List was analyzed, according to practice in China. RESULTS & CONCLUSION: Drug enterprises increased the dosage form and category of preparation blindly because of huge raw drug market, various dosage forms and weak administration to drug enterprises. The characteristics of drug were cheap, high quality, acceptance by state, which decided that the category of drug in Essential Drug List should not be too much. It is necessary to adjust Essential Drug List as the change of situation so as to meet the requirement of public health.

RNA interference is an evolutionarily conserved surveillance mechanism that responds to double-stranded RNA by sequence-specific silencing of homologous genes. Although it is a short time since the discovery of the phenomenon, the technology develops fastly for the character of easy operation, low investment, specificity and potentiality, and researchers have made some progress on the mechanism of RNA interference and application in functional genomics and disease treatment. This article reviews the history, mechanism, biological significance and application of RNA interference.

ADAMs is a family of transmembrane proteins with multi domains and multiple functions,which play important roles in many(patho-)physiological processes.They are upregulated in a variety of tumors and possess protein shedding and adhesive activities,which showed that they could be useful as tumor biomarkers and promising targets for designing new anti-tumor drugs.This review focuses on the roles ADAMs play in the process of tumor development and the potential application in cancer therapy.

Objective To approach the value of CT double windows technique in the location of lung X-ray knife.Methods The varying window width(W),window center(C) of peripheral type carcinoma of lung and their error were deltermined.The best double window was chosen and the clinical matherial was analysed.Results (1)The biggest error among different widow widths measuring foci was 7 mm.(2)The best double windows in the location of lung X-ray knife were W1 120~180,C1-700,W2 350,C2 15.(3)34 cases of lung carcinoma were observed with double windows,the outline of foci was contiuous and clear in the 15 cases of peripheral type carcinoma of lung and 8 cases of central type carcinoma of lung without hilum infiltration(67.6%),the inner outline of foci was disappear but could be remedied by mediastinum window in 11 cases of central type carcinoma of lung with hilum infiltration. Conclusion The double widows technique is provied with accuracy and without lack fidelity,and could reflect more condition of peritumour infiltration,it is clear superior to single display technique.

Objective To evaluate the clinical curative effect,survival rate and adverse reactions of three-dimensional conformal radiotherapy(3D-CRT )in combination with chemotherapy on lymph nodes metastasis of esophageal carcinoma.Methods Using supraclavicular 3D-CRT combined with chemotherapy on and simple 3D-CRT supraclavicular lymph node metastasis of esophageal cancer patients,3D-CRT com-bined synchronous chemotherapy (treatment group),51 cases,only 3D-CRT 49 cases (control group).3D-CRT combined synchronous chemotherapy 51 cases (treatment group),simple 3D-CRT 49 cases (control group).These patients 3D-CRT were given the total dose of 50 ~60Gy/25 ~30F.TN chemotherapy regi-mens were applied:paclitaxel 135 mg/m2 ,d1;Nedaplatin 25 mg/m2 ,d1,1 ~3,21 days cycle in fist week and fourth week.Results Local control and treatment group survival rates in 1,2 year were significantly higher than that of control group (P <0.05).Treatment group adverse reaction rate is higher than the con-trol group,but there was no statistically significant difference.Conclusions The recent curative effect and survival rate could be significantly improved by 3D-CRT joint TN synchronous chemotherapy regimen for pa-tients with supraclavicular lymph node metastasis of esophageal cancer,but the relatively high incidence of adverse reactions,clinical application should be considered comprehensively according to actual situation.