Effect of RNA interference of CD59 gene on proliferation of non-small cell lung cancer cell line GLC-P in vitro / 南方医科大学学报

<p><b>OBJECTIVE</b>To investigate the effect of CD59 gene inhibition mediated by RNA interference on the proliferation and apoptosis of non-small cell lung cancer (NSCLC) GLC-P cells in vitro.</p><p><b>METHODS</b>Recombinant plasmids for RNA interference of CD59 gene were constructed and transfected into GLC-P cells via lipofectamine 2000. The stably transfected cells were examined with real-time RT-PCR, MTT assay and enzyme-linked immunosorbent assay to investigate the changes in cell proliferation and apoptosis.</p><p><b>RESULTS</b>Compared with the control cells, the cells transfected with CD59-siRNA showed significantly decreased expression levels of CD59 mRNA (P<0.05) and significantly inhibited cell proliferation.</p><p><b>CONCLUSION</b>CD59 gene is highly expressed in NSCLC and RNA interference-mediated CD59 silencing can strongly inhibit the proliferation and induce apoptosis in GLC-P cells, which shed light on a potentially new target for targeted gene therapy of NSCLC.</p>

Effectivity and safety of three common antisyphilic drugs in treatment of early syphilis / 中国生化药物杂志

Objective To observe the clinical effect of three antisyphilic drugs in the treatment of early syphilis.Methods From January 2007 to March 2013, 90 cases early syphilis in department of dermatology of our hospital were selected and randomly devided into three groups: benzathine penicillin group, clarithromycin group and azithromycin group.The efficacy including the onset time of improvement, recovery time of skin lesions and TRUST negative conversion rate were compared in three groups.Results The onset time of skin lesions improvement in patients with primary syphilis result showed that there was significant difference between benzathine penicillin and clarithromycin (t =14.603, P<0.05), clarithromycin and azithromycin (t=12.682, P<0.05).While in the treatment of primary syphilis and secondary syphilis, there were no significant differences among recovery time of skin lesions.And there were no significant differences the onset time of skin lesions improvement in treatment of secondary syphilis among three groups.The TRUST negative conversion rates of benzathine penicillin and clarithromycin both were 100%, and azithromycin was 96.7%, with no significant difference.Conclusion The antisyphilic efficacy of three drugs are similar.The patients allergic to penicillin may be treated with clarithromycin or azithromycin, who would aquaire a satisfied result.

miRNA-144 in the saliva is a genetic marker for early diagnosis of esophageal cancer / 南方医科大学学报

<p><b>OBJECTIVE</b>To investigate the presence of miRNA-144 in the saliva of patients with esophageal cancer and its value for early diagnosis of esophageal cancer.</p><p><b>METHODS</b>Saliva samples were collected form patients with esophageal cancer admitted in the Fourth Affiliated Hospital of Jinan University and the First Affiliated Hospital of Guangzhou Medical College between January, 2011 and May, 2013, with saliva samples from 50 middle-aged healthy volunteers matched for age and gender ratio as the control group. The contents of miRNA-144 in the samples were detected with RT-PCR.</p><p><b>RESULTS</b>The levels of miRNA-144 in both the whole saliva and saliva supernatant were significantly higher in esophageal cancer group than in the control group (P<0.05). In the whole saliva, the cut-off point of miRNA-144 was ≥100, with a sensitivity of 74.6% and a specificity of 92.0% for esophageal cancer diagnosis (Az=0.865); in saliva supernatant, the cut-off point was ≥20 with a sensitivity of 53.7% and a specificity of 94.0% (Az=0.754), suggesting a moderate diagnostic value of miRNA-144 in whole saliva and saliva supernatant.</p><p><b>CONCLUSION</b>miRNA-144 is highly expressed in the saliva of patients with esophageal cancer and can be used as a genetic marker for early diagnosis of esophageal cancer.</p>

Curative effect of Cynergy dual wavelength laser in treatment of skin vascular pathological changes in children / 中华医学美学美容杂志

Objective To explore the curative effect and adverse reactions through Cynergy dual wavelength laser to cure skin vascular pathological changes in children.Methods Cynergy dual wavelength (595 nm and 1064 nm) laser were used to treat the skin vascular pathological changes in children (650 cases) including strawberry-shaped hemangioma (398 cases) and port wine stain (252 cases).Anergy density was 5-15 J/cm2 and 30-80 J/cm2.The curative effect and adverse reaction and also the relationship between the port wine stain curative effect and the age of patient,location,and colour of skin lesions were analyzed.Results In total 650 cases after 3-7 times treatments under suitable pulse width and energy density,the curative effect for strawberry-shaped hemangioma was 92.2 ％,that for pink type port wine stain was 77.9 ％,that for purple type port wine stain was 38.9 ％,and that for thickening type port wine stain was 14.3 ％ ; the overall adverse reaction rate was 2.3 ％.After test with x2 analysis,the curative effect of port wine stain also varied depending on the age of patient,location,and colour of skin lesions.The younger the age of patient and shallower of colour of skin lesions,and the better the curative effect.The curative effect for location around the eyes was better than frontal face and limbs.Conclusions Application of Cynergy dual wavelength laser in treatment of the skin vascular pathological changes in children has notable curative effect and low adverse reaction.It is a new curative technology and also safe and reliable.It is worthy of popularization and application.