Objective To observe the effect of intranasal dexmedetomidine on total intravenous anesthesia for thyroid surgery postoperative analgesia.Methods Sixty female patients who were undergoing elective thyroid surgery were enrolled.Patients by total intravenous anesthesia were randomized in mechanical sampling method to receive intranasal dexmedetomidine 1 μ g/kg (group Ⅰ,30 cases),or the same volume sodium chloride (group Ⅱ,30 cases) before anesthesia induction,then flurbiprofen 100 mg intravenous 10 min before surgery.The postoperative surgical pain was assessed utilizing visual analogue scale (VAS),and the postoperative pain of cough was assessed by comfort score (BCS) at 1,2,4,6,8,12,24 h after surgery,in addition,the adverse reactions were recorded.Results The VAS scores at 1,2,4,6,8,12 h in group Ⅰ were lower than those in group Ⅱ,and there were statistically significant (P ＜ 0.05).The BCS scores at 1,2,4,6,8 h in group Ⅰ were higher than those in group Ⅱ,and there were statistically significant (P ＜ 0.05).The nausea and dizziness morbidity in group Ⅰ were lower than those in group Ⅱ (8 cases vs.14 cases,6 cases vs.14 cases),and there were statistically significant (P ＜ 0.05).Eight patients were required supplemental analgesic within 12 h after surgery in group Ⅱ,which was more than that in group Ⅰ (0 case),and there was statistically significant (P ＜ 0.05).Conclusion Receive total intravenous anesthesia for thyroid surgery,the patients who are given intranasal dexmedetomidine 1 μ g/kg combined with flurbipmfen can reach satisfactory postoperative analgesia,decrease the nausea and dizziness morbidity,increase the comfortable degree.

Macrolide(Ma) resistance has been spreading for more than 13 years worldwide accompanying Ma widely used for anti-mycoplasma pneumoniae (Mp)infection,and has been rapidly increasing.Prevalence of Ma resistance has been higher in Asia than in Europe and America.More than 10 positions of Mp mutation were found.Of them A2058G in domain V of 23S ribosomal RNA gene is frequently found in Europe and America,and A2063G is found dominant in Asia.Different position points of Mp mutation are related with different Ma resistance.Real time PCR for detecting Mp and its mutation position directly from bronchoalveolar lavage fluid is the most accurate method.Treatment with minocycline and garenoxacin for Ma-resistant Mp infection are known most effective.

Objective To evaluate effects of pulmonary surfactant (PS) containing ketamine on respiratory failure induced with lung-lavage in rats Methods Twenty Wistar rats were anesthetized with intraperitoneal pentobarbital sodium and were ventilated with the peak inspiratory pressure(PIP) being 1 47 kPa and E:I at 1:1 following intubation through tracheotomy In all rats whole double lung lavage were performed with normal saline (37℃, 40 ml?kg -1 ) 8 10 times after PIP and PEEP were adjusted to 1 96 kPa and 0 49 kPa respectively The rats were randomly divided into A and B groups after PaO 2 decreased to less than 12 kPa In group A (n=10): PS (25mg, 0 5ml) was injected intratracheally to lungs; in group B (n=10): PS (25mg, 0 5ml) containing ketamine 2 5 mg was injected At 120th min after PS injection, PIP and PEEP were gradually adjusted to 1 47 kPa and 0 kpa (ZPEEP), respectively Results PaO 2 in both groups decreased significantly from 59 3 kPa to 10 3 kPa after lung lavage(P0 05 vs pre-lavage) All rats in group B and 4 of 10 rats in group A survived at the end of experiment Conclusions Intratracheal administration with PS containing ketamine not only reverses hypoxemia , but also maintains the respiratory function under low airway pressure without PEEP after respiratory failure induced with lung lavage,

0.05). After the injection, PaO 2 in group A, B and C increased significantly, whereas PaO 2 in group D did not change and was kept at low level below 13.3kPa (P

Objective: To explore the effect of comprehensive intervention to correct parental unhealthy rearing behavior on middle-school students. Methods: Eight freshman classes were randomly extracted from two key junior middle schools, four classes as the experimental groups, the other four as the control group. EMBU was applied to measure the difference before and after intervention of both groups. The comprehensive intervention was used, mainly the individual family mental health education and group family education. Results: After intervention, there were significant improvement in the parents' emotional warmth and understanding factors of experimental group(53.0?10.6/49.3?10.1, 55.7?10.9/50.4?10.5,t= 4.24 or 5.80,P

15.0%.CONCLUSIONS The most common pathogens causing nosocomial infection are Gram-negative bacteria.The resistance rates are high.Antibiotics policy is urgently needed in order to delay the resistance onset development.

Objective:To explore the effect of 1,25-dihydroxyvitamin D3 on the mast cell tryptase (MCT) in asthmatic guinea pigs. Methods:A total of 60 male or female healthy guinea pigs were randomly divided into control group (group A), asthmatic group(group B), and 1,25-dihydroxyvitamin D3 group(group C), with 20 cases in each group. To establish asthmatic guinea pig models, 1ml peanut oil was filled into stomach in the morning in group A and group B , and 1ml peanut oil with 1,25-dihydroxyvitamin D3 was filled into stomach in group C. Airway resistance (Re) of asthmatic guinea pigs was detected, and the bronchoalveolar lavage fluid (BALF) cells were counted. Lung tissue with HE and MCT immunohistochemical staining were used to observe the pathological changes in lung tissue and the distribution of MCT. Results:After injection of different concentration of acetylcholine chloride, the Re in group B and group C were increased significantly compared with group A (P<0.05);compared with group B, the Re in group C were decreased significantly (t=-5.385, -5.761, -6.184,-13.574, P<0.05);the total number of BALF cells and eosinophils were increased significantly in group B and C (t=19.618, 9.598, 10.854, 5.388, P<0.05);compared with group B, the total number of BALF cells and eosinophils in group C was decreased significantly (t=-5.555,-5.392, P<0.05);the number of tryptase positive cells in group B was increased significantly than that in group A (t=21.312, P<0.05), and in addition to the alveolar septum and submucosa, the cells were also distributed around blood vessels and outside the cells; the number of tryptase positive cells in group C was decreased significantly compared with group B, and the difference was statistically significant (t=5.043, P<0.05). Conclusions:After the asthmatic guinea pigs are treated with 1,25-dihydroxyvitamin D3, their BALF, Re, infiltration degree of inflammatory cells in the trachea and lung tissue and airway inflammatory reaction are reduced significantly. 1,25-dihydroxyvitamin D3has a certain inhibiting effect on the activation of mast cells and the release of MCT granules.

Air Pollutants, Occupational ; analysis ; Chromatography, Gas ; methods ; Dimethyl Sulfoxide ; analysis ; Workplace

Objective To investigate the effects of HIF-1α expression regulated by Tet-on gene expression system on cell proliferation and cell cycle of hepatoma cells in vitro. Methods The change of human hepatocellular carcinoma cell lines HepG2 cell cycle and cell proliferation was measured after HIF-1 α expression of HepG2 in vitro was regulated by Tet-on expression system. Results Amplified products were confirmed as the cDNA of HIF-1α by DNA sequencing, and pTRE-HIF-1α obtained by edonuclease digestion,capable of expression in HepG2 Tet-on cells. After being incubated under different concentrations of doxycycline for 48 h, MTT assays showed that up-regulation of HIF-1α expression increased HepG2 cell proliferation activities. The cell index of S and G2/M phase was significantly higher and that of G0/G1 phase reduced with the increasing concentrations of doxycycline. The mRNA expression of Cyclin A increased with the increasing concentrations of doxycycline ( P ＜ 0. 001 ), CyclinD1 and CyclinE did not change ( P ＞0. 05). Conclusion HIF-1 α gene promotes cell proliferation and cell cycle of hcpatoma cells in vitro, and this effects increased with the increasing of HIF-1α expression possibly through influencing the expression of CyclinA.

Objective To detect food-specific IgE and IgG in patients with psoriasis.Methods Serum samples were collected from 102 patients with psoriasis,30 patients with chronic eczema,30 patients with chronic urticaria,and 30 healthy check-up examinees.Food-specific IgE and IgG were detected by commercial kits in these samples.Results No significant difference was observed in the detection rate of food-specific IgE or IgG among patients with psoriasis,patients with chronic eczema and patients with chronic urticaria (both P ＞ 0.05).Meanwhile,the detection rate of food-specific IgE and IgG in healthy examinees were statistically different from those in the three groups of patients (all P ＜ 0.05).Conclusions Food allergens seem to be implicated in the development of psoriasis.Moreover,the sources and kinds of food allergens in patients with psoriasis differ from those in patients with chronic eczema and patients with chronic urticaria,which deserves further research.