Background The key premise of genetic research and treatment is to select the desired gene vector,ultrasound microbubbles as a new type of gene vector can safe,fast and effectively enhance the gene transfection and expression by reversibility increasing the permeability of cells. Objective This study was to observe the effects of ciliary neurotrophic factor(CNTF)gene mediated by ultrasound microbubbles intraocular transfer on visual function and retinal ganglion cell(BGCs)after optic nerve injury. Methods Fifty-five adult Sprague-Dawley(SD)rats were divided into 6 groups randomly,including normal control group(n=5),sham injury group(n=10),simple injury group(n=10),naked plasmid group(n=10),plasmid+ultrasonic irradiation group(n=10)and ultrasound microbubbles group(n=10).The model of optic nerve injury Was made by forceps clip on the fight optic nerve.and the corresponding intervene was performed in different groups.Flash visual evoked potential(F

24 hours) and versus control group(

BACKGROUND:Rheumatoid arthritis is a common chronic systemic autoimmune disease which is characterized by synovial lesions and bone erosion. The clinical treatment is stil a difficulty.
OBJECTIVE:To explore the effect of exogenous hydrogen sulfide on the articular lesions in rheumatoid arthritis rats.
METHODS:Sprague-Dawley rats were divided into four groups:control group, model group, high concentrations of hydrogen sulfide intervention group, low concentrations of hydrogen sulfide intervention group. At 2 and 4 weeks after intervention, the arthritis index, levels of serum inflammatory cytokines (tumor necrotic factor-αand interleukin-1β), pathological change of synovial tissue, average absorbance of knee joint specimens using col agen-II immunohistochemical staining were measured.
RESULTS AND CONCLUSION:The arthritis index, levels of serum inflammatory cytokines and inflammatory infiltration of synovial staining in the model group and two intervention groups were higher than that in control group, the high concentrations of hydrogen sulfide intervention group was significantly higher than the model group (P<0.05) while the low concentrations of hydrogen sulfide intervention group was lower than the model group (P<0.05). The average absorbance of knee cartilage specimens using col agen-II immunohistochemical staining was lower in the model group and two hydrogen sulfide intervention groups compared with the control group, the high concentrations of hydrogen sulfide intervention group was significantly lower than the model group (P<0.05) while low concentrations of hydrogen sulfide intervention group was higher than the model group (P<0.05). Hydrogen sulfide has a regulatory effect on rheumatoid arthritis, high concentrations of hydrogen sulfide aggravate arthritis and cartilage degradation, low concentrations of hydrogen sulfide reduce arthritis and protect cartilage.

Objective To investigate the clinical effect of preoperative nutritional treatment and perioperative nutrition support for the patients with esophageal cancer.Methods According to the digital table,90 patients with esophageal cancer were divided into the control group(15 cases),preoperative nutrition group(25 cases),postoperation nutrition group(25 cases)and preoperative nutrition + postoperation nutrition group(25 cases).The postoperative quality of life and the complications were compared.Results Postoperative quality of life in the preoperative nutrition group,postoperation nutrition group and preoperative nutrition + postoperation nutrition group were all better than that in the control group(t =14.76,15.13,17.87,all P ＜ 0.05).The incidence rate of postoperative complications in patients received nutritional intervention significantly decreased than in the control group(x2 =9.17,12.13,19.18,all P ＜ 0.05).Conclusion The preoperative nutrition and postoperation nutrition can improve the postoperative quality of life and reduce the incidence rate of the complications.

OBJECTIVETo explore the clinical application value of Provider-Initiated HIV Testing and Counseling (PITC) by analyzing the positive rate of HIV tests for people in need of PITC and that of routine HIV tests.

METHODSWe retrospectively analyzed the demographic and epidemiologic data about the patients seeking PITC services or undergoing routine HIV tests in Nanjing Drum Tower Hospital between January and December 2013.

RESULTSThe positive rate of initial HIV screening was 1.98% in the PITC group and 0.24% in the routine test group, while that of confirmed HIV was 0. 40% in the former and 0.07% in the latter, both with statistically significant differences between the two groups (P < 0.01). The positive rate of HIV was markedly higher in males than in females, particularly in the PITC group.

CONCLUSIONPITC has a high clinical value in HIV detection for targeted subjects and therefore deserves general application in dermatology.

Counseling ; Dermatology ; Female ; HIV Seropositivity ; diagnosis ; epidemiology ; Humans ; Male ; Mass Screening ; methods ; Retrospective Studies ; Sex Factors

AIM:To investigate the possible mechanism of microRNA-106a promoting the invasion of human breast cancer MDA-MB-231 cells. METHODS:The efficiencies of transfection with microRNA-106a inhibitor and mi-croRNA-106a mimic by liposome were detected by qPCR. The mRNA and protein expression levels of tissue inhibitor of metalloproteinase 2 (TIMP-2), matrix metalloproteinase 2 (MMP2) and matrix metalloproteinase 9 (MMP9) in the MDA-MB-231 cells transfected with microRNA-106a mimic were detected by qPCR and Western blot. The effect of microRNA-106a on the invasion ability of MDA-MB-231 cells was measured by Transwell assay. The luciferase reporter assay was used to detect the regulatory effect of microRNA-106a on the TIMP-2 pathway. RESULTS:In the MDA-MB-231 cells, the ex-pression level of microRNA-106a decreased at 48 h after transfection with microRNA-106a inhibitor (P<0.05), and the expression level of microRNA-106a increased at 48 h after transfection with microRNA-106a mimic (P<0.05). The mi-croRNA-106a inhibitor decreased the invasion ability of MDA-MB-231 cells in vitro (P<0.05). The microRNA-106a mim-ic down-regulated the expression of TIMP-2 and up-regulated the expression of MMP2 and MMP9 (P<0.05) in the MDA-MB-231 cells. The microRNA-106a inhibitor enhanced the luciferase activity of the reporter plasmids containing the 3'-un-translated region of TIMP-2 gene (P<0.05), while the microRNA-106a mimic decreased the luciferase activity of the re-porter plasmid (P<0.05). CONCLUSION:High expression of microRNA-106a promotes the invasion ability of breast cancer MDA-MB-231 cells in vitro, which may be related to the inhibition of TIMP-2 pathway. MicroRNA-106a plays an important role in the invasion of breast cancer MDA-MB-231 cells.

Objective To obtain the fusion genes of several human orphan G protein coupled receptors (oGPCRs) with Gi1α subtype of G protein and their expression system. Methods The whole open reading frames of GPR45, GPR85, GPR174 and Gilα were cloned by RT-PCR from HepG2 cDNA separately,and the corresponding fusion genes were amplified by overlap extension PCR. Then, the fusion genes-containing pBacmids were successfully constructed with the Bac-to-Bac baculovirus expression system indicated by specific transposition and virus recombination. The insect Sf9 cells were transfected with pBacmid-oGPCRs-Gi1α, and the supernatant containing recombinant virus was harvested. With the supernatant, insect Sf9 cells were infected under an optimized condition (MOI=5, infection time=72 h) and the fusion proteins were prepared and detected by Western blotting.Results The three fusion genes of GPCR45, GPR85 or GPR174 with Gi1α were obtained. The corresponding fusion proteins could be properly prepared in Sf9 cells.Conclusion Human oGPCRs could be fused with Gilα, and the fusion genes could be expressed using the Bac-to-Bac baculovirus expression system in insect Sf9 cells.

Objective To investigate the hepatoprotective effect of silybin-phosphatidylcholine complex(SPC) in sepsis rats.Me-(thods) Fifty Wistar immature rats were randomly divided into 3 groups:normal control(10 cases),septic group(30 cases) and interfe-(rence) group(10 cases).In septic group and interference group,rats were treated by cecal ligation and puncture(CLP).Meanwhile,the interference group was given SPC before 2 hours of CLP and after 2 hours of CLP.Blood of rats was taken from all groups to determine the levels of serum tumor necrosis factor-?(TNF-?),interleukin-1(IL-1),alanine aminotransferase(ALT) and aspartate aminotransferase(AST) at varying intervals.Results The levels of serum TNF-?,IL-1,ALT and AST after CLP were significantly elevated in septic group compared with the normal control group(P

Objective To evaluate the clinical efficacy of interventional occlusion of ventricular septal rupture (VSR) complicating acute myocardial infarction (AMI). Methods Six patients with VSR complicated after AMI underwent transcatheter interventional occlusion in Chinese PLA General Hospital between May 2009 to May 2015 were retrospectively analyzed. Their clinical features, interventional treatment protocols, and occurance of postoperative complications were studied. Results Among the 6 patients, VSR were successfully occluded in 5 patients. One patient failed the operation due to instability of occluder after it was deployed and the occluder was retrieved. The paitents died of heart failure 6 months later. Among the 5 patients with successful closure, 4 patients presented mild residual shunt after occlusion and acute left heart failure occurred in 1 patient after operation. Two patients died during hospital stay after operation. Between them, one patient died 3 hours after operation because of cardiac tamponade and the other patient died of cardiogenic shock after withdrawal from IABP. Three patients were followed up until now and follow up echocardiography showed satisfactory cardiac function without heart failure. Conclusions Transcatheter occlusion was a reliable therapy for patients with ventricular septal rupture complicated in acute myocardial infarction which could improve cardiac function and reduce mortality.

OBJECTIVE To evaluate the difference of efficacy of sublingual immunotherapy on different age patients with allergic rhinitis. METHODS 229 patients with dermatophagoides farina drops allergic rhinitis who have finished SLIT at least 2 years were enrolled and analyzed by retrospective analysis. All patients were divided into different age groups: pre-adolescence(n=107), adolescence(n=53), adulthood(n=69). Indexes for therapeutic effects of SLIT visual analogue scale(VAS) score, rhinitis symptom scores, medication scoreintra- and inter groups were assessed during different stage of treatment(3 months, 1 year and 2 years). Data were analyzed with SPSS 19.0 software. RESULTS Compared with prior treatment, after the SLIT for 3 months, 1 year, 2 years, VAS scores, rhinitis symptom scores, medication scoresof all the patients with allergic rhinitis are significantly decreased; Differences of rhinitis symptom scores(H=0.844, 4.153, 2.669, P>0.05), VAS score(H=1.356, 3.720, 0.313, P >0.05), medication scores(H=1.044, 5.841, 3.399, P>0.05) between groups had no statistical significance at different stage after treatment(3 months, 1 year and 2 years); The differences between 2 years and 1 year of SLIT treatment showed statistical significance in the VAS scores(Z=1.635, P =1.635). CONCLUSION SLIT with dust mites drops had good curative effect and security in patients with allergic rhinitis, which hadno obvious difference between different age groups.