The relation between the cAMP content of the aqueous humor and the intraocular pressure after to- pical epinephrin was studied by radioimmunoassay. Two hours after instillation of epinephrin,the aque- ous cAMP rose from 13.54?5.81 pmol/ml to 39.05 ?4.37 pmol/ml,while the IOP and the rate of the aqueous flow decreased by 0.43kpa and 0.76?l/min, and the facility of outflow increased by 0.23?l/min/ kpa.These results revealed that the IOP-lowering effect of epinephrin was mediated by cAMP.

Objective A meta-analysis of clinical trials of prehospital thrombolysis versus in-hospital thrombolysis or PCI for acute myocardia infarction (AMI). Method We collected the literature on prehospital thrombolysis for AMI published at home and abroad from January 1989 to April 2009. Recanalization rate of infarct-related arter, complication incidence and mortality ( ＜ 30 d) were regarded as result indicators. Software RevMan 4.2.8 was used to process meta-analysis. Results There were only 27 literatures selected. Prehospital thrombolysis was associated with higher recanalization rate of infarct-related arter[OR 2.67,95%CI(1.86 ～ 3.85);P ＜0.01] and lower mortality ( ＜ 30 d ) [OR 0.71,95%CI(0.64 ～ 0.78); P ＜ 0.01] than in-hospital thrombolysis. There was no significant difference in complications between them. Compared with PCI, prehospital thrombolysis was associated with higher complication incidence [OR 2.91,95% CI ( 1.26 ～ 3.80); P = O.005]. There was no significant statistical difference of mortality ( ＜30 d ),but the sensitivity analysis was not good. Conchusions The effect and prognosis of prehospital thrombolytic are superior to that of in-hospital thrombolysis,and the same with PCI,but prehospital thrombolytic has higher incidences of complications,and the sensitivity is not good.

Objective To investigate the clinical diagnosis and treatment of blunt abdominal trauma(BAT).Methods The clinical data of 64 patients with BAT were retrospectively analyzed.Results 49 patients treated by surgery were cured and 12 cases treated by non-surgery were cured.3 patients died,two of them died for multi-organ dysfunction and one of them died for brain trauma.Conclusion Because the BAT is severe and complicate,so it shoald be diagnosed and treated as soon so possible.

Purpose:By ascessing the CT guided percutaneaus biopsy to improve clinical diag- nostic rate and reduce complications.Materials and methods:60 cases of biopsy with complete materials have been reviewed,and the methods of“retain anesthetic tracing needle”has been proposed-to obtain tissues for cytologic and histologic exams with different biopsy needles.Results:Successful rate of the puncfure 100%.39 cases were identified as lung cancer,8 cases as tuberculosis,7 cases as pneumonia. Successful biopsy was 90%.Conclusion:“Retain anesthetic tracing needle”could reduce the times of adjusting direction,improve the one-time successful rate and possess the characteristics of positioning safe,reliable and accurate diagnosis.

Objective To investigate the feasibility of repairing spinal tracts with peripheral nerve graft combing neurotrophic factors in rats following complete spinal cord transection.Methods One hundred and twenty-one male Wistar Rats were transection at T9 level of spinal cord, and randomly divided into five groups. Group A with spinal cord transection was underwent acidic fibroblast growth factor (aFGF) treatment and peripheral nerve grafts (n=25); Group B: spinal cord transection was underwent aFGF treatment only (n=25); Group C: spinal cord transection was underwent peripheral nerve grafts only (n=25); Group D: spinal cord transaction only (n=25); and Group E: sham control (laminectomy only, n=21). The locomotor behavior of all rats was analyzed by the BBB open field locomotor test over the six months of survival time. Motor evoked potentials (MEP) were used to evaluate axon growth across the damage site. Biotinylated Dextran Amine (BDA) and retrograde tracing with fluorogold were used to evaluate the presence of axons through the damage site after treatment. Results The presence of anterograde BDA labeling of corticospinal tract axons at the graft site and fluorogold retrograde labeling of neuron populations was found in motor cortex and in red nucleus, reticulospinal nuclei, raphe nuclei, and vestibular nuclei in Group A. The average latency and amplitude of MEP were improved significantly in Group C. The mean of BBB scores showed significant improvement in Group A. Statistical analysis indicated that Group A had significant improvement compared to Group BC and D at 6 months post-surgery (P

0 05), however, the forceps assisted rate in bupivacaine group reached 30 8%, indicating that bupivacaine had a increased trend of the instrumental vaginal delivery during labor analgesia There were no significant differences in neonatal Apgar scores and SpO 2 between both groups Conclusion Ropivacaine is more beneficial and effective than bupivacaine is at low concentration for labor analgesia with PCEA

Objective To evaluate the pharmacokinetics of ropivacaine following lumbar plexus combined with sciatic nerve block for knee arthroscopy. Methods After obtaining written informed consent 16 ASAⅠorⅡpatients of both sexes (8 males ,8 females) scheduled for unilateral knee arthroscopy under lumbar plexus combined with sciatic nerve block with ropivacaine were randomly divided into 2 groups (n = 8 each) : group A received 0.5% ropivacaine 30 ml (15.0 mg) and group B received 0.75% ropivacaine 30 ml (22.5 mg) . Blood samples were taken from radial artery immediately after and at 5, 10, 15, 30, 45, 60, 120 and 180 min after drug administration for determination of plasma ropivacaine concentration by HPLC. The pharmacokinetic parameters were calculated using 3p97 computer program. Results The two groups were comparable with respect to sex ratio (M/F), age, body weight, height, duration of operation and amount of fluid infused. The main pharmacokinetic parameters in group A and B were: Cmax(1.4?0.3) mg?L-1 and (2.7?0.9) mg?L-1;AUC (3.88?0.28) mg?L-1?h-1 and (7.13?0.65) mg?L-1?h-1;t1/2?(0.44?0.19)h and (0.60?0.34)h; t1/2?(3.4?0.4)h and (2.4?0.5)h. The Cmax in group B was significantly higher than that in group A. The Cmax of ropivacaine reached 3.57 mg?L-1 in group B. No patient developed central nervous system or cardiac toxicity.Conclusion The plasma concentration versus time curve is fitted to two-compartment pharmacokinetic model. Lumbar plexus combined with sciatic nerve block with 0.5% ropivacaine 30 ml is safer.

Objective To evaluate the interference of 13 kinds of β‐lactam antibiotics in fructosamine detection .Methods A se‐ries of solution of antimicrobial drugs were formulated with water for injection ,and added into the mixture fresh serum volume by 5% .Interfere with antimicrobial drugs on the test results of fructosamine were evaluated .Results When the blood concentrations of cefathiamidine and ticarcillin sodium/clavulanate potassium were up to 37 .5 mg/L and 247 .5 μg/mL respectively ,they began to produce positive interference on fructosamine detection .However ,the degree of interference was not correlated to the serum concen‐tration of fructosamine .Conclusion Cephathiamidine and ticarcillin sodium/clavulanate potassium have positive interference on fructosamine detection .

Objective To investigate the correlation between the prevalence of chronic low back pain(CLBP)in cold plateau region in young men and the lumbar lordosis angle (LLA) on X-ray plain film.Methods Questionnaire, clinical findings, physical status and LLA measurement were obtained in 163 cases of different occupational young men.The relation between CLBP,body mass index(BMI) and LLA were studied.There were 77 cases of tankmen,54 cases of artillerists,32 cases of local resident(age 17~28 years). Results In 163 young men ,there were 63 cases with CLBP ( 38.8% ) . CLBP in tankmen was more frequency ( 47.0% ) than that in artillerists and local resident (P

BACKGROUND:The metastatic potential of hepatocelular carcinoma cels is key factor influencing patient’s prognosis. To observe the effect of human bone marrow mesenchymal stem cels on metastasis of hepatocelular carcinoma is of great significance for improving the lifetime of hepatocelular carcinoma patients. OBJECTIVE:To explore the biological effect of human bone marrow mesenchymal stem cels on hepatocelular carcinoma cels with different metastatic potentials. METHODS:Human bone marrow mesenchymal stem cels and hepatocelular carcinoma cel suspension with high and low metastatic potentials were respectively injected into the Transwel chamber, and after 36 hours of co-culture, ELISA method was used to detect the absorbance value as wel as cel counting method was used to observe the changes in the invasion ability of hepatocelular carcinoma cels. The effects of human bone marrow mesenchymal stem cels on the proliferation of hepatocelular carcinoma cel suspension with high and low metastatic potentials were determined using cel counting kit-8. PCR method was adopted to measure the expression of osteopontin, bone specific sialoproteins, integration (alpha V), transforming growth factor beta 1 and programmed cel death protein 5. RESULTS AND CONCLUSION:(1) The number of migrated hepatocelular carcinoma cels was significantly lower in the co-culture group than the single culture group, and based on the semi-quantitative detection of invasion ability, the absorbance value of the co-culture group was significantly lower than that in the single culture group (P < 0.05). (2) The expression of osteopontin and bone specific sialoproteins was significantly decreased in the co-culture group with high metastatic potential (P < 0.05), but there was no change in the expression of integration (alpha V) (P> 0.05). In the co-culture group with low metastatic potential, the expression of osteopontin, bone specific sialoproteins, and integration (alpha V) were declined remarkably (P < 0.05). (3) Results from the semi-quantitative detection of proliferation ability showed that the absorbance value of the co-culture group was significantly higher than that of the single culture group (P < 0.05). (4) In the co-culture group with high metastatic potential, the expression of transforming growth factor beta 1 was up-regulated significantly (P< 0.05), but the expression of programmed cel death protein 5 showed no changes (P > 0.05). However, in the co-culture group with low metastatic potential, the expression of transforming growth factor beta 1 and programmed cel death protein 5 was both increased dramaticaly (P < 0.05). These findings suggest that the human bone marrow mesenchymal stem cels reduce the invasion ability of hepatocelular carcinoma cels, and enhance their ability of proliferation.