Objective To investigate the feasibility of different doses of dexmedetomidine required to prevent sufentanil-induced cough during anesthesia induction. Methods Two hundred and forty ASA Ⅰ or Ⅱ patients, aged 18-55 yr, weighing 45-78 kg, undergoing elective gynecological operations under general anaesthesia, were randomly divided into 4 groups ( n = 60 each) : Ⅰ -Ⅳ groups. Ⅱ -Ⅳ groups received iv infusion of dexmedetomidine 0.10, 0.25 and 0.50 fig/kg at a rate of 0.05 μg·kg-1·min-1 respectively before anesthesia induction. Anesthesia was induced with target-controlled infusion of propofol (target effect-site concentration 5 μg/ml) , when the BIS value reached 55, iv sufentanil 0.5 fig/kg was injected over 3 s. The occurrence and degree of cough were recorded within 1 min after sufentanil injection. Tracheal intubation was facilitated with succinylcholine 1-2 mg/kg after the observation. The adverse cardiovascular events (severe sinus bradycardia, hypotension) were also record ed from the start of dexmedetomidine infusion to 1 min after intubation. Results The incidences of cough were 25 % , 7 % , 7 % and 5 % , incidences of severe sinus bradycardia 0, 3 % , 15 % and 25 % , and incidences of hypotension 5% , 7% , 8% and 8% in Ⅰ - Ⅳ groups respectively. Compared with group Ⅰ , the incidences of cough were significantly decreased in Ⅱ - Ⅳ groups, while the incidences of severe sinus bradycardia increased in Ⅲ -Ⅳ groups (P ＜ 0.01) . There was no significant difference in the incidences of cough among Ⅱ - Ⅲ groups and in the degree of cough among the four groups (P ＞ 0.05). Conclusion Intravenous dexmedetomidine 0.10 μg/kg can be used to prevent sufentanil-induced cough during anesthesia induction.

Objective To explore the influence of atorvastatin on neurological function of patients with progressive cerebral infarction.Methods 80 patients with cerebral infarction were randomly divided into two groups,40 cases in the control group using conventional treatment,the observation group 40 cases on the basis of control group combined with atorvastatin treatment.Two groups of clinical data were retrospectively analyzed.Results Two groups of neural function defect score before treatment had no significant difference,after treatment,observation group scored significantly higher than that of control group,the difference was statistically significant (P ＜ 0.05).The observation group 40 cases,23 cases were cured,57.5％ ; 10 cases,accounting for 25.0％ ; effective 5 cases,accounting for 12.5％,2 cases are invalid,accounted for 5.0％,the total clinical efficiency of 95.0％.40 cases in the control group,9 cases were cured,22.5％ ;9 cases,accounting for 22.5 ％ ; effective in 10 cases,accounting for 25.0％,12,30.0％.The total efficiency was 70.0％.The total efficiency of observation group was better than that of the control group,the difference was statistically significant (P ＜ 0.05).Conclusion The progress of cerebral infarction patients in the conventional anticoagulation plus atorvastatin,which can maximize the protection of nerve function,improve the clinical cure rate and improve the life quality of the patients.

Objective To investigate the effects of prone positioning on oxygenation and lung mechanics in neonates with mechanical ventilation.Methods Twenty cases of neonates,selected from Shanghai Children′s Hospital(from May 2008 to Feb 2009),were randomized to supine-prone position group (n=10) and prone-supine position group (n=10) using a crossover design.During 6h,these neonates were placed in the supine position for 3h then in the prone position for 3h or in reversed order.The ventilator parameters,results of arterial blood gas and the lung mechanics were recorded.Results Without obvious changes of ventilator parameters,PaO2 improved significantly when the incubated neonates were placed in the prone position for 3h compared to supine [(74.50±15.37)mm Hg vs (67.60±13.66)mm Hg,1mm Hg=0.133kPa,P<0.05).Similarly,oxygenation index of prone positioning for 3h was (201.86±55.96)mm Hg,which was higher than that of (184.38±63.58)mm Hg,the value of supine positioning for 3 h.There were significant differences (P<0.05).Our results showed that 60% (12/20) of the neonates responded to prone positioning,with oxysenation index increasing as much as 17mm Hg on average.Improvement in minute volume,tidal volume and dynamic compliance of the lung were achieved after prone positioning for 3h (P=0.011,0.020,0.045).The airway resistance did not decrease significantly (P=0.422),but the average decreased in the prone position.Conclusion Oxygenation and the lung mechanics are improved significantly in the neonates with prone position compared with supine position.

In recent years,combined therapy based on radical resection has promoted the prognosis of gastric cancer,but the rate rate of post-surgery recurrence is still high,which is the main cause of death.It helps us take out better treatment for gastric cancer to analyze correlation factors of gastric cancer recurrence after radical resection.It is needed to reviewed the literatures about correlation factors analysis of gastric cancer recurrence after radical resection in recent years.

The influenza A is an acute respiratory infection persistently threatening human health and social stability, and has caused high morbidity and mortality. The development of novel anti-influenza drugs based on new targets is very significant because of high mutation and drug resistance of influenza virus. The nucleoprotein of influenza A virus identified high conservation, provides cross immune protection as a potential target of anti-influenza drugs and reports on relevant studies have been published at home and a- board. Herbal drug as a traditional Chinese medicine shows the distinct advantages in the aspect of prevention and treatment of influenza A. This paper analyzes the structure and function of influenza a virus, and reviews the advances in the research on anti-influenza targets based on the nucleoprotein of the influenza A virus.
Animals ; Drug Discovery ; methods ; Humans ; Influenza A virus ; drug effects ; metabolism ; physiology ; Influenza, Human ; drug therapy ; Molecular Targeted Therapy ; methods ; Nucleoproteins ; chemistry ; metabolism ; Virus Replication ; drug effects

Objective To carry out the performance evaluation to insure security of inner canister during the design phase, which is the important thin component of the portable sterilizater. Methods The software Mechanica, one of the module of Pro/Engineer was implemented to the flexure analysis of the inner canister. Results The stabilization and strength of inner canister satisfied requirements of the design. Conclusion Not only the security of design data can be proved but the cost and cycle of design can be reduced by using the method of expansion simulation analysis at the same time of the design phase of the equipment.

Objective To investigate the clinical effect of combined use of remifentanil,propofol and high frequency jet ventilation for respiratory tract foreign body removal in children.Methods Fifty-two children undergoing respiratory tract foreign body removal operations were randomly divided into two groups: group A with remifentanil,propofol and high frequency jet ventilation(n=26),and group B with ketamine and sodium ?-hydroxybutrate(n=26).The changes of operation time,awaken time,vital signs and the incidence of intra/post-operative complications were observed.Results There was no significant differences in operation time,but awaken time in group A was significantly longer than that in group B(P

The diploid type of Paragonimus westermani in Heilongjiang Province and triploid type of P.westermani in Liaoning Province were examined for amino acids by high performance liquid chromatography (HPLC).Eleven kinds of amino-acids of diploid type and 15 kinds of triploid type were found in metacercaria; 15 kinds amino acids of diploid type and 16 kinds of triploid type were detected in larvae.The amino acids were more abundant in larvae than in metacercaria and more in the triploid than in the diploid type.The predominant amino acids were cystine and Rlutamic acid.

OBJECTIVE To investigate antimicrobial resistance of Acinetobacter baumannii and detect metallo-?-lactamases (MBLs) in clinical isolates from ICU. METHODS Forty-two strains of A. baumannii were isolated from sputum samples between Jul 2005 and Mar 2007 in Affiliated Hospital of North Sichuan Medical College. Bacteria identification and antimicrobial susceptibility test were performed by VITEK-32 system and K-B disk method. Meanwhile,MBLs were detected by Etest. RESULTS Cefoperazone/sulbactam with low resistance accounted for 2.4%. The resistance to imipenem was 66.7%. The resistance to other antibiotics ranged from 69.4% to 100%. Nine MBLs-producing strains were detected by Etest. CONCLUSIONS Metallo-?-lactamases produced by A. baumannii are one of important mechanisms which caused resistance to imipenem. Cefoperazone/sulbactam and polymyxin can be chosen to treat resistant A. baumannii.

Adrenomedullin (AM) is a new peptidergic regulator of vascular function. AM serves as a hormone, which has many biological properties, plays an important role in the many pathophysiological processes, especially shock. This review will highlight the structure, biological properties of AM and the relationship between AM and shock.