[Objective]To explore the efficacy of combination of TCM and WM on venous ulcer. [Method] Administer oral taking and external application of Chinese medicine decoction on the base of operation to 73 cases. [Result] All cases had effect, 72 limbs were cured, 5 recurred. [Conclusion] Combination of TCM and WM can improve cure effect, reduce recurrence rate, much better than pure operation or TCM therapy.

180% elevation of PKC activity in the retinal vasculature.????????except ??? distributed in the membrane and cytosolic fraction in retinal vessels in normal or diabetic rats,the expression of ?????-PKC significantly increase in the membrane pool OD Value 282%?32%?340%?26%?187%?14% respectively ,but ?????-PKC expression significantly decrease in cytosolic pool in retinal vessels of diabetic rats compared with nondiabetic rats,OD value 71%?11%?63%?8%?84%?6%,respectively,however ? isoenzym expression in cytosolic pool significantly increase 208%?6%,compared with normal rats.Conclusion:Diabetes can induce the translocation of ?????-PKC from cytosol to membrane pool,but ? isoform translocated from membrane to cytosol pool in retinal vessels of diabetic rats.

Objective:To investigate the expression of protein kinase C (PKC) isoforms ?,? in diabetic rats and evaluate the relation between altered PKC ?,? expression and the pathogenesis of diabetic retinopathy (DR).Methods:Wistar rats were randomly divided into control group and diabetic group induced by streptozotocin;osmotic shock method was used to isolate the retinal vessels of rats;and PKC isoforms ?,? espression were determined after 2 weeks,2 months,4 months and 6 months follw-up.DR was assessed by quantitative morphometry of capillary bed.Results:Diabetes could induce the translocation of PKC isoform ? from cytosol to membrane pool after 2 weeks,2 months,4 months and 6 months,but ? isoform translocated from membrane to cytosol pool in retinal vessels of diabetic rats after 2 weeks,2 months,4 months and 6 months.Diabetic rats showed pericyte decrease and capillary basement thickening in deep capillary bed of retina after 6 months follow-up.Conclusion:The expression of PKC isoforms ?,? varies in different stages of DR,and the effect of PKC isoforms on the pathogenesis of DR is different.

Objective:To construct the phage display library of randomized P2/NC protease cleavage sequences in HIV-1 Gag protein,so as to provide evidences for studying the effect of drug resistance-associated mutations on susceptible cleavage sequences of HIV-1 PR.Methods: CAP2 fragments and NC fragments of HIV-1 gag were generated by PCR.StuⅠ restriction site was introduced to the 5′ terminal of CAP2 fragments and the protease cleavage sequences of 3′ terminal of CAP2 fragments were randomized.The overlapping CAP2 sequence was introduced to the 5′ terminal of NC fragments and Sal Ⅰ restriction site was introduced to the 3′ terminal.CAP2 and NC fragments were linked by overlapping PCR method and the fused CAP2 and NC fragments were cloned into pCANTAB5S-LD3 to construct the phage display library of the P2/NC cleavage site in HIV-1 Gag protein.Results: As much as 2.1?10~6 clones were obtained in the phage library and the titer was 3.0?10~(12)TU/ml.There were 52.1% clones containing inserted CAP2/NC fragments.Sequence analysis of 12 samples showed that nucleotide acids and amino acids were randomly distributed at randomized PR cleavage sites.Nine of 10 positive monoclonal phages specifically bound to human IgG.Conclusion: CAP2/NC protease cleavage sequences of HIV-1 Gag protein have been successfully randomized and its phage display library has been constructed,which may help to screen the phages containing susceptible cleavage sequences of PR with drug resistance-associated mutations and establish the phage model for in vitro screening of PR inhibitor.

Systemic review of all the relevant randomized controlled trials (RCTs) was performed. RCTs were identifiedfrom Cochrane Library, MEDLINE, EMBASE. Limited evidence showed that problem-based learning in continuingmedical education increased participants' knowledge, performance and patients' health. Moderate evidence also showedthat doctors are more satisfied with problem-based learning. Problem-based learning may work in continuing medicaleducation, however,the evidence is too weak to be recommended. Rigorously large sample, well-designed randomizedcontrolled trials are required.[

Based on analyzing problems that traditional medical eduction mode faces,the author puts forward the construction of education mode of evidence-based medicine in medical students. And at the same time ,the article also makes research and discussion in relation to the following aspects: how to introduce evidence-base medicine into medical education; how to effectively implement teaching of evidence-based medicine.

OBJECTIVE:To discuss the effect and safety of dezocine on hemodynamics and inflammatory cytokines in esoph-ageal cancer patients with one-lung ventilation(OLV). METHODS:80 esophageal cancer patients were randomly divided into ob-servation group and control group,40 cases in each group. All patients received 0.5 mg penehyclidine hydrochloride+0.1 mg/kg midazolam+4 μg/kg fentanyl+2 mg/kg propofol+0.15 mg/kg cisatracurium for anesthesia induction,propofol 4-10 mg/(kg·h)+remifentanil 0.1 μg/(kg·min)were pumped after double-lumen endobronchial catheter. Observation group received 1 mg dezocine by Intravenous injection in surgical skin incision,control group received the same amount of normal saline. Hemodynamic parame-ters [heart rate (HR),mean arterial pressure (MAP)] and inflammatory cytokine levels in 2 groups before anesthesia induction (T1),when skin incision(T2),5 min after dezocine/normal saline(T3),OLV 30 min(T4),recovery two-lung ventilation 10 min (T5)and end of the operation(T6)were compared,and the incidence of adverse reactions was observed. RESULTS:There was no significant difference in HR and MAP in 2 groups at T1,T5 and T6(P>0.05);HR and MAP in observation group at T2,T3 and T4 were significantly lower than control group,the difference was statistically significant(P<0.05). There were no significant differ-ences in TNF-α and IL-8 at T1,T2 and T3 and IL-6 at T1,T2,T3 and T4 between 2 groups(P>0.05);TNF-α and IL-8 at T4,T5 and T6 and IL-6 at T5 and T6 in observation group were significantly lower than control group,the differences were statistically signifi-cant(P<0.05). And there was no obvious adverse reactions during treatment. CONCLUSIONS:Dezocine shows more stable hemo-dynamics and lower expression level of inflammatory cytokines in esophageal cancer patients with OLV,with good safety.

Congenital cataract is the leading cause for low vision and blindness in infancy and childhood.One third of congenital cataract cases are associated with genetic mutation and hereditary,and the etiology of congenital cataract is heterogenous and its phenotype is variable.The known mutation genes include encoding structural lens protein,gap junction protein,membrane protein and lens-developing-related regulatory protein.Location and identification of mutation genes in congenital cataract patients are necessary for us to understand the molecular defects and pathophysiologic features of congenital cataract.With the development of molecular biology techniques,the study on the mechanism of congenital cataract has made great progress,which is helpful for us to further understand the heredity pattern as well as the influence of environment and nourishment to the metabolism of lens.The purpose of this review was to summarize the literature of current advance in the study on molecular genetic basis of congenital cataract.

Objective:To explore the application value of acoustic radiation force impulse (ARFI) imaging technology in the dif-ferential diagnosis of benign gallbladder wall thickening or gallbladder carcinoma. Methods:Siemens ultrasound ARFI, involving virtu-al touch tissue imaging (VTI) and virtual touch tissue quantification (VTQ), was used to examine the gallbladder wall in 327 cases. To compare transverse shear wave velocity (VTQ) of gallbladder waland VTI image characteristics. Results:Significant differences exist-ed in the gallbladder wall elastic parameters of normal and benign gallbladder wall thickening, as well as thick-walled gallbladder carci-noma. The ROC curve displayed that a velocity of 2.65 m/s can be used to diagnose gallbladder carcinoma, with sensitivity and specific-ity of 94.0%and 93.7%, respectively. Conclusion:The VTQ parameters were significantly different in benign and malignant gallblad-der wall thickening, thereby exhibiting clinical application value.

Objective To investigate the clinical outlook of hepatic stem cells and its relations with liver cancer. Methods The literatures of recent years on the studies of hepatic stem cells were reviewed. Results Liver cancer may consist of cells of various differentiation grades and it may result from the perodifferentiated hepatic stem cells or abnormal differentiated cells. Conclusion The hypothesis of hepatic stem cells has been identified extensively. Further study maybe helpful for revealing the origin, carcinogenesis of hepatic cancer, and may also be useful for the understanding of the mechanism of metastasis.