Aim To realize the modulatory actions of nitric oxide(NO) on supraoptic nucleus(SON)neurons by observing the effects of NO donor sodium nitroprusside(SNP) on the SON neurons. Methods The cell electrophysiology properties were obtained by the intracellular recording techniques from the SON neurons in adult rat hypothalamic slices. Results Local pressure ejection of glutamate induced depolarizing responses with decrease of input resistance, concentration- and membrane potential-dependent properties in 12 SON neurons. The amplitude and duration of glutamate responses were suppressed by bath of SNP in 67% of tested cells(P

AimTo realize the regulatory actions of nitric oxide(NO) on supraoptic nucleus (SON) neurons by observing the effects of NO donor sodium nitroprusside(SNP) on SON neurons. Methods The cell electrophysioloical properties were obtained by the intracellular recording techniques from the SON neurons in adult rat hypothalamic slices. Results In 11 silent cells, superfusion of SNP(1 mmol · L-1) for 3～5 min resulted in the depolarization response with a decrease of membrane resistance and time constant(P＜0.05) in 55% of cells, while hyperpolarization with an increase of membrane resistance in 45 % of neurons. In 73% of tested cells, SNP also decreased the amplitude, overshoot, firing frequency and slope of current-voltage curve, and increased the afterhyperpolarization of action potentials evoked by intracellular depolarizing current pulses(P ＜0.05).However, SNP enhanced the spontaneous firing in 67% of 6 tested cells with spontaneous activities. ConclusionSNP presents an inhibitory or excitatory effect on SON neurons in aneurontype-andfunctionalstate-dependent manner, which suggests that NO may exhibit adverse regulatory actions on SON neurons.

Objective To understand the prevalence condition of occupational musculoskeletal disorders in nurses,so as to supply scientific evidence for reducing and preventing nurses′occupational injuries.Methods 582 nurses from three level three class -A hospital in Wenzhou were investigated,which were selected by convenience sampling method.Results The prevalence of musculoskeletal disorders was 76.3%.The prevalence of low back pain was highest,which was 58.9%.Among the nurses who had lower back pain,in the past 1 year,43.4%of them had a total duration of illness more than 30 days,18.7% of them reduced daily activities time for more than 30 days,and 22.6% of them had received examination and treatment.The main factors which related to low back pain among nurses were age (OR =2.18,95% CI:1.36 -3.67 ),stoop time (OR =2.24,95% CI:1.08 ~4.36 ), occupational stress(OR =1.82,95%CI:1.14 ~2.89),work fatigue(OR =2.45,95%CI:1.27 ~3.15)and physical exercise(OR =0.63,95%CI:0.44 ~0.89).Conclusion The condition of occupational musculoskeletal disorders is serious,especially low back pain.Interventions related to influencing factors can be taken to reduce the incidence of low back pain.

Three compounds were isolated from the leaves of Rabdosia amethystoides (Benth) C.Y.Wu et Hsuan. They were identified as Irabdosinaiol (Ⅰ), oleauolic acid (Ⅱ), ?-sitostcrol (Ⅲ) on the basis of chcmical reactions and spectral data. compounds Ⅰ and Ⅱ were isolated for the first time from this plant.

ObjectiveTo study the clinical application value of screening cervical precancerous lesions of high risk human papillomavirus(HPV) testing combined with thin-prep cell test(TCT) in prevention of cervical intraepithelial neoplasma (CIN) and cervical carcinoma. MethodsSeven hundred and sixty-three women were screened by high risk HPV test, TCT and pathology test of biopsy more. The positive coincident rate with the pathology test positive rate during the three technologies was compared.ResultsHigh risk HPV positive was 287 cases, the rate of infection was 37.61％(287/763), and pathology test positive was 82 cases, the coincident rate of which was 28.57％ ( 82/287 ) ; TCT positive was 78 cases, the rate of infection was 10.22％ (78/763), and pathology test positive was 50 cases, the coincident rate of which was 64.10％ (50/78) ; TCT + high risk HPV positive was 59 cases, pathology test positive was 47 cases, and the coincident rate of which was 79.66％ (47/59). Among each coincident rate,the differences were statistically significant (P＜ 0.05). The positive rate of high risk HPV infection CIN I was 32.26％( 10/31 ),CIN Ⅱ 41.38％ (12/29), CIN Ⅲ 93.55％ (29/31), squamous carcinoma of the cervix 96.88％ (31/32),respectively. ConclusionsThe positive rate of high risk HPV increases significantly with the grade of cervical precancerous lesions. It is of great significance to screen in the population for HPV and TCT in a regular time span,since it could not only decrease HPV infection rate and the incidence of cervical lesions,but also prevent the cervical cancer.

Objective To explore the changes and clinical significance of serum cystatin-C, β2- mieroglobulin (β2-MG) and renal hemodynamic in children with Henoch-Schoenlein purpura(HSP). Method Forty-six patients with HSP are in HSP group, 40 healthy children are in control group. Serum cystatin-C was determined by enzyme-linked immunosorbent assay, β2-MG was detected by radioimmunoassay, renal hemodynamie was detected by colour Doppler ultrasound. Results Serum cystafin-C and β2-MG in HSP group [(3.96±1.52 ), (2.74±0.82)mg/L] were higher than those in control group [(1.67±0.61), (1.89±0.47)mg/L] (P<0.01). Frequenee spectra showed high velocity and resistance, and maximum crest flow rate[(1.068±0.348) m/s] and resistance index (0.894±0.125) in systolic phase of main renal arteries were obviously higher in HSP group than those in control group [(0.859±0.357) m/s and 0.726±0.078] (P<0.05). Conclusions The level of serum cystatin-C and the change of renal hemedynamie can act as the significant indicators of early diagnosis of HSP nephritis.

Xuan Fei Run Zao Decoction was used for treatment of 486 cases of psoriasis with a total effective rate of 90. 3%, so as to test and verify the TCM theory of the lung being in charge of the hair and the lung being closely related with derma tosis. Clinical study found that in patients of psoriasis there was humoral immunological hyperfunction, manifesting increases of IgG and IgA; trace elements copper and ferrum levels increased and zinc, manganese and calcium decreased In the hair: packed cell volume and viscosity of whole blood increased, and erythrocyte sedimentation rate increased. It is suggested that psoriasis is possibly related to changes of immunity, blood rheology and trace elements in the body.

Objective To investigate the infection of human cytomegalovirus (HCMV) in patients with atherosclerosis and explore its clinical significance.Methods A total of 134 patients with atherosclerosis (observation group) including 102 patients with coronary heart disease (CHD) and 32 patients with non-CHD from December 2009 to April 2012 were enrolled in this study.The 102 patients with CHD were divided into HCMV infection group (86 cases) and non-HCMV infection group (16 cases).Another 40 healthy person were selected as control group.The carotid intima-media thickness (IMT) was assessed by ultrasonography.The serum HCMV-IgM was measured by enzyme-linked immunosorbent assay.Results The infection rate of HCMV in observation group was 77.6％ (104/134),which was higher than that of 37.5％(15/40) in control group(P ＜ 0.05).The infection rate of HCMV in CHD patients and non-CHD patients was 84.3％(86/102) and 56.2％(18/32),and there was significant difference (P ＜ 0.05).The carotid IMT in HCMV infected atherosclerosis patients was (1.31 + 0.28) mm,which was higher than that of (1.14 ± 0.21)mm in non-HCMV infected atherosclerosis patients (P ＜ 0.05).The incidence of myocardial infarction and multi-vessel lesion in HCMV infection group was higher than that in non-HCMV infection group [39.5％(34/86) vs.25.0％(4/16) and 43.0％(37/86) vs.18.8％(3/16)](P＜ 0.05).The incidence of stable angina pectoris and single-vessel lesion in HCMV infection group was lower than that in non-HCMV infection group [26.7％(23/86) vs.43.8％(7/16) and 22.1％(19/86) vs.56.2％(9/16)](P＜0.05).Conclusion The high-infection rate of HCMV is found in atherosclerosis patients,and it maybe have a close relationship with the occurrence and development of atherosclerosis.

Ebola virus(EBOV)and Marburg virus(MARV),belonging to the Filoviridae family,emerged four decades ago and caused severe viral hemorrhagic fever in human and other primates.As high as 50-90% mortality,filoviruses can cause significant threats to public health.However,so far no specific and efficient vaccine has been available,nor have other treatment methods proved to be effective.It is of great importance to detect these pathogens specific,rapidly and sensitively in order to control future filovirus outbreaks.Here,recent progresses in the development of detection and diagnosis methods for EBOV and MARV are summarized.

Objective To evaluate the effect of percutaneous coronary intervention(PCI) on myocardial perfusion in coronary heart.Methods Fourty-two patients with coronary heart disease who were confirmed to have coronary artery steonsis by the coronary angiography were selected.They were checked by myocardial contrast echocardiography of intravenous before and after treatment by PCI.Then we determined quantitatively the perfusion of coronary microcirculation based on the extent of myocardial imaging and recorded it images.The myocardial contrast echocardiography result was compared before and after treatment by PCI for evaluating the situation of myocardial perfusion and effect of PCL So we can estimte the patients' prognosis.Results There were 39 eases of 42 patients with PCI that their lesion vascular were all opening and unblocked.Repeated radiography showed that their TIMI blood flow was the third level.The partial cross sectional area of all the capillaries [A =15.46 ± 3.27) min] blood flow velocity [β =(0.75 ±0.16)min/s],and myocardial blood flow volume[A - β =(12.00 ±4.51 ) min2/s] dependent on myocardial segments all increased more significantly than those before the PCI[A =(6.68 ± 1.76) min,β =(0.40 ± 0.12) min/s、A · β =(2.82 ± 1.38 ) min2/s] (t =37.2527.58、30.65,P ＜ 0.05 ).After PCI three months the EF value of follow-up patients was increased mote than that of before PCI (t =13.77,P ＜ 0.01 )but the scoring index of ventricular wall motion was decreased more than that of before PCI ( t =8.75,P ＜ 0.01 ).Correlation analysis showed that after PCI A,β,A · β all had a strong correlation ( every P ＜ 0.01 ).Conclusion PCI could effectively improve the situation of myocardial perfusion in myocardial infarction patients.It could save ischemia myocardial in infarction field and also improve the function of left ventricular if patients implemented PCI operation as soon as possible.