Objective To research the anesthetic effect of ropivacaine compounding with dezocine on brachial plexus block.Methods From January 2011 to September 2013,180 cases upper extremity surgery patients were selected and divided into group A,group B and group C in Nanyang Central Hospital.Patients in group A received 25 mL 0.4%ropivacaine injection for brachial plexus block;based on group A,group B was injected 10 mg dezocine to assist anesthesia;group C received a mixture of 25 mL 0.4% ropivacaine and 10mg dezocine injection.The anesthetic effect and adverse reactions of the patients in three groups were recorded and compared. Results The onset of anesthesia of group C was(17.43 ±1.53)min,which was the shortest of three groups,but there were no significant differences.The duration of sensory blockade and duration of analgesia was(8.22 ±1.63)h and (11.33 ±1.90)h,which were all longer than group A and group B,and there was significant differences(P<0.05);the visual analogue scale(VAS) scores of group C at each time before surgery was the shortest,but there were no significant differences.The VAS scores of group C at 1 h,6 h,12 h and 24 h after surgery were all lower than group A and B,and there were no significant differences.Conclusion Ropivacaine compounding with dezocine on brachial plexus block can improve the effect of anesthesia,extend the duration of analgesia.

0.05).Conclusions IL-11 unlikely to stimulate the growth of the CEM leukemia cell.And did not affect the antitumor effect of HD-MTX.It can be used as an assisting drug in program of acute lymphoblastic leukemia(ALL) therapy.

Objective To study clinical application and complication of heavy silicon oil (Densiron68) in the treatment of traumat- ic proliferative vitreoretinopathy.Design Non-comparatives,retrospective case series.Participants Twenty patients with proliferative vitreoretinopathy resulting from ocular trauma were recruited,whose retinal detachment arising from inferior or posterior retinal breaks. Methods Heavy silicon oil was applied to patients during vitrectomy.Silicone oil or gas was applied to patients with redetachment after heavy silicon oil was removed.Main Outcome Measures The rate of retinal attachment,vision,intraocular pressure,inflammatory re- action of anterior segment and silicone oil emulsification period.Results The rate of retinal attachment with one operation using heavy silicon oil was 50%(10/20 eyes)and 15%(3/20 eyes)with further surgery.The average follow-up time was 3.90?1.41 months.At the end of the follow-up,all tamponade agents were removed in 50% patients.Patients' logMAR vision after the surgery was 2.19?0.86,which was better than before the surgery (2.63?1.00) (P=0.037).There was little evidence of high intraocular pressure,excessive inflammatory reaction of anterior segment and cornea endothelial cell damage,but cataract became more serious without exception.Emulsification rate was 100% and the average emulsification period was 2.18?0.87 months.Conclusions Heavy silicon oil tamponade in vitreoretinal surgery for traumatic proliferative vitreoretinopathy has good efficacy and relatively few complications.However,its emulsification period is relatively short,which may constraint its application to a certain extent.

The aim of the study is to investigate the effect of salvianolic acid B (SalB) on blood-brain barrier (BBB) in rats after cerebral ischemia-reperfusion, and to illustrate its possible mechanisms. Cerebral ischemia-reperfusion was induced by middle cerebral artery occlusion in rats. The break-down of BBB was indicated by extravasations of immunoglobulin (IgG) monitored with immunohistochemistry. The expression of MMP-9 and NOS2 in the brain was determined by immunohistochemistry, and the expression of p-p38 and p-ERK1/2 was detected by Western blotting. It was shown that on day 2 after ischemia-reperfusion the IgG accumulated around the vascular boundary zone, suggesting the break-down of BBB, and the expression of MMP-9 and NOS2 up-regulated at the same time. The result of Western blotting suggested that the expression of p-p38 and p-ERK1/2 increased. On day 7 after ischemia-reperfusion the. expression of MMP-9 and NOS2 was about the same level as day 2, the expression of p-p38 was higher than that on day 2 and the expression of p-ERK1/2 was slightly lower than that on day 2. SalB (1 and 10 mg x kg(-1)) significantly alleviated the extravasations of immunoglobulin induced by cerebral ischemia-reperfusion (P < 0.05). On day 2 and day 7 SalB attenuated the expression of MMP-9 and NOS2 (P < 0.05). SalB (10 mg x kg(-1)) reduced the expression of p-p38 and p-ERK1/2 apparently on day 2 and 7 after ischemia-reperfusion (P < 0.05). SalB (1 mg x kg(-1)) inhibited the expression of p-p38 on day 7 after ischemia-reperfusion (P < 0.05). The results indicate that SalB protects blood-brain barrier in rats after cerebral ischemia-reperfusion by inhibiting the MAPK pathway.

In order to explore a dose distribution verification procedure of intensity modulated radiation therapy (IMRT) for nasopharyngeal carcinoma (NPC) and establish its evaluation criteria, we performed 35 two-dimensional (2D) patient-specific IMRT verifications over the year 2006. The percent of pixels passing gamma and the normalized agreement test (NAT) index were mainly used to represent the agreement between the measured and computed dose distributions with three criteria (2%/2 mm, 3%/3 mm and 5%/3 mm) as recommended in the literature. The results were that all cases passed through verifications with three criteria except that the NAT index of one case was beyond the limitation, and the three tolerance levels of 2%/2 mm, 3%/3 mm and 5%/3 mm produced similar clinical verification results but led to different percent of pixels passing gamma and NAT index. Our data showed that the percent of pixels passing gamma and the NAT index were complementary to evaluate future IMRT verifications as two significant metrics. Due to the influence of the noise and the trait of the software, we considered an IMRT plan as acceptable in case of the percent of pixels passing gamma >95% and the NAT index <5 with the 5%/3 mm criteria for IMRT patient-specific quality assurance (QA).

Objectives To assess the efficacy and safety of Xiaoyao Powder (Carefree Powder) in the treatment of depression using the method of systematic review of evidence-based medicine.Method Data published before December 2009 were searched from MEDLINE,Cochrane library,CNKI,VIP,CBM.We included randomize-controlled trials (RCT) testing Xiaoyao Powder against placebo or antidepressants,and Xiaoyao Powder combined with antidepressants against antidepressants alone.Two researchers collected data independently.The assessment of methodological quality was based on Cochrane handbook and the materials were analyzed with software RevMan 5.017.The outcome measure index was relative risk or difference of mean value (95% confidence interval).Results Thirty-two RCTs involving 2 253 patients were included.Involved trials published in Chinese were of low quality.In the trials of comparison between Xiaoyao Powder and placebo,only decrease of self-rating depression scale (SDS) score was not significantly different.For general clinical improvement and decrease of Hamilton rating scale for depression (HAMD) and SDS scores,Xiaoyao Powder combined with antidepressants was more effective than antidepressants alone,but the effect of Xiaoyao Powder was equal to antidepressants.No adverse effect was reported in the trials regarding Xiaoyao Powder.Conclusions Xiaoyao Powder appears to be effective for depression.However,the exact effect needs to be confirmed in well-designed large-sampled clinical trials.

Objective: To understand AIDS knowledge of the college students,to provide scientific evidence for making out the strategy of health education and synthetic prevention measure purposely.Methods An anonymous questionnaire was conducted with face to face interview to investigate the college students in Xi'an, and the software Epi info 5.0 was used to perform the statistical analysis of the data. Results 70.5% of university students knew the whole name of AIDS. As to three ways of HIV transmission, the investigation shows that 49.1% of college students knew three main ways. The 26.5% of college students mistakenly think that mosquito could transmit HIV. In general, the old, the married the literate, and medical students get more knowledge about AIDS than the young,the unmarried,the illiterate, and other major students. Conclusion The college students who are one of the most dangerous groups infected AIDS have poor knowledge. The situation of poor AIDS knowledge is extremely unfit to the prevalent tendency of AIDS, which our country is being faced. We suggest that the college students should be educated intensively on the health knowledge of AIDS especiallis beingy for freshmen.

Objective: To investigate the mechanism underlying the repairing effect of Flk-1+ MSC on injury.Methods: We established the mouse model of acute renal ischemia-reperfusion,perfused murine Flk-1+ MSC within 1 hour or after 10 days in the acute and chronic groups,respectively,determined the homing of GFP positive Flk-1+ MSCs and the percentage of proliferating cells in the injured renal tissues by immunohistochemistry,and identified chronic fibrosis after injury by Masson trichrome staining. Results: Tissue injury and inflammation were significantly alleviated in the acute group,exhibiting a good long-term recovery,but no significant improvement was observed in the chronic group.The number of PCNA positive cells reached the peak at 3 days in the acute group,as compared with 10 days in the control,indicating that MSC engraftment effected an earlier endogenous repair.GFP staining showed that most of the MSCs homed to the interstitial region and the rest to the renal tubule.Conclusion: Flk-1+ MSC has a repairing effect on renal injury via alleviating acute inflammation and launching endogenous repair,while direct differentiation from Flk-1+ MSC is not the primary mechanism of its therapeutic efficacy.

To study the cause and mechanism of vascular dementia.The author considers kidney deficiency and sputum stasis is the cause and mechanism of vascular dementia,so the treatment of notifying kidney to supplement marrow,activating blood circulation and removing sputum,accompanied by opening orifices medicines should be adopted.

Objective Methicillin-resistant Staphylococcus aureus (MRSA) is a growing public health concern that has been associated with pediatric fatalities. This study investigated the genotypes of staphylococcal cassette chromosomal mec (SCCmec) and Panton-Valentine Leukocidin (PVL) in MRSA strains isolated from Shanghai Children's Hospital by PCR. Methods A total of 30 strains of MRSA were isolated from various clinical specimens from October 2005 to June 2006. The antimicrobial susceptibility was measured by agar diffusion method. SCCmec typing was conducted using a novel multiplex PCR assay allowing for concomitant detection of methicillin resistance (mecA gene) to facilitate detection and classification of all currently described SCCmec typesⅠ, Ⅱ, Ⅲ, Ⅳa, b, c, d andⅤ. PVL gene was also determined by PCR. Results mecA gene was positive in all the strains. SCCmecⅡ was identified in 6(20.0%) isolates, SCCmecⅢ in 15(50.0%) isolates, SCCmecⅤ in 2 and SCCmecⅣa in 1 isolate. Six MRSA strains were non-typeable. The isolates with SCCmecⅡ or SCCmecⅢ were resistant to multiple antibiotics. The strains harboring SCCmecⅣa or SCCmecⅤwere susceptible to all antibiotics except β-lactams. Eleven (36.7%) isolates were PVL positive. The genotypes and subgenotypes of staphylococcal chromosomal cassette mec of eleven PVL-positive MRSA were SCCmecⅡ(1 isolates), SCCmecⅢ (5 isolates), SCCmecⅣa (1 isolate), SCCmecⅤ (2 iso-Lates) non-typeable (2 isolates). Conclusions SCCmecⅡ and SCCmecⅢ are the major genotypes of MRSA in our hospital. These isolates are multi-resistant to antibiotics. The prevalence of PVL gene is higher in SCCmecⅡ- or SCCmeⅢ-positive MRSA. The isolates with SCCmecⅡ or SCCmecⅢ were resistant to multiple antibiotics.