ObjectiveTo investigate the inhibitory effect of lentivirus-mediated polypyrimidine bundle binding protein-associated splicing factor (PSF) on retinal neovascularization (RNV) in mice model of oxygen-induced retinopathy (OIR).MethodsOne hundred and twelve 5-day-old C57BL/6J mice were randomly divided into normal control group, simple OIR model group, OIR model + lentivirus empty vector treatment group (Vec group) and OIR model + PSF lentivirus treatment group (PSF group), with 16, 32, 32 and 32 mice, respectively. When the mice were 7 days old, the mice in the normal control group were fed in a routine environment, and the mice in the OIR model group, Vec group and PSF group were established OIR model. The mice in the Vec group and PSF group were given an intravitreal injection of 1 μl of lentiviral vector and PSF lentivirus (titer 1×1011 TU/ml) at the age of 12 days. No injection was performed in the normal control group and simple OIR group. RNV was evaluated by counting the number of pre-retinal neovascular cells and analysis of non-perfusion area by immunofluorescent staining of the mouse retina. Real-time quantitative PCR was applied to detect the mRNA expression of nuclear factor erythroid 2-related factor 2 (Nrf2) and hemeoxygenase-1 (HO-1). Western blot analysis was applied to detect the protein expression of Nrf2, HO-1 and PSF. Results Of the normal control group, simple OIR model group, Vec group and PSF group, the number of pre-retinal neovascular cell nuclei were 0.00, 14.36±5.50, 15.67±4.96, 8.13±2.09, the non-perfusion area were 0.00%, (35.71±2.81)%, (36.57±4.53)%, (15.33±4.75)%, respectively. The differences of the number of pre-retinal neovascular cell nuclei and non-perfusion area among 4 groups were significant (F=24.87, 165.70; P＜0.05). Compared with the normal control group, there were more pre-retinal neovascular cell nucleis and larger non-perfusion area in the simple OIR model group and Vec group (P＜0.05). Compared with the simple OIR model group and Vec group, there were lower pre-retinal neovascular cell nucleis and smaller non-perfusion area in the PSF group (P＜0.05). Real-time quantitative PCR and Western blot showed that the mRNA expression of Nrf2, HO-1 (F=53.66, 83.54) and protein expression of Nrf2, HO-1 and PSF (F=58.38, 52.69, 24.79) among 4 groups were significant (P＜0.05). The mRNA expression of Nrf2, HO-1 and protein expression of Nrf2, HO-1 and PSF in the simple OIR model group and Vec group decreased significantly than those in the normal control group (P＜0.05). The mRNA expression of Nrf2, HO-1 and protein expression of Nrf2, HO-1 and PSF in the PSF group were increased significantly than those in the simple OIR model group and Vec group (P＜0.05). model group and Vec group (P＜0.05).ConclusionIntravitreal injection of lentivirus-mediated PSF inhibits RNV in mice model of OIR possibly through up-regulating the expression of Nrf2 and HO-1.
ObjectivesTo systematically review the efficacy and safety of oral drugs for treating women with uncomplicated lower urinary tract infection.MethodsPubMed, The Cochrane Library, EMbase, CBM, WanFang Data, CNKI and VIP databases were electronically searched to collect randomized controlled trials (RCTs) of oral drugs for treating females with uncomplicated lower urinary tract infection from inception to November, 2018. Two reviewers independently screened literature, extracted data and assessed risk of bias of included studies, then, network meta-analysis was performed by using " gemtc” packages in R 3.5.1 software.ResultsA total of 38 RCTs were included. The results of network meta-analysis showed that: quinolones (RR=1.24, 95%CI 1.11 to 1.37), furantoin (RR=1.21, 95%CI 1.06 to 1.37), trimethoprim-sulfamethoxazole (TMP-SMZ) (RR=1.20, 95%CI 1.06 to 1.35), fosfomycin (RR=1.17, 95%CI 1.04 to 1.31) and penicillin (RR=1.18, 95%CI 1.05 to 1.33) were superior to non-steroidal anti-inflammatory drugs (NSAIDS) in clinical cure. Quinolones were better than fosfomycin (RR=1.07, 95%CI 1.03 to 1.12), penicillin (RR=1.18, 95%CI 1.13 to 1.23) and cephalosporin (RR=1.13, 95%CI 1.08 to 1.19); furantoin was better than penicillin (RR=1.15, 95%CI 1.08 to 1.21) and cephalosporin (RR=1.10, 95%CI 1.04 to 1.17); TMP-SMZ was better than penicillin (RR=1.15, 95%CI 1.09 to 1.21) and cephalosporin (RR=1.11, 95%CI 1.04 to 1.16); fosfomycin was better than penicillin (RR=1.10, 95%CI 1.04 to 1.16) in bacteriological cure. The adverse effect rates of quinolones were lower than furantoin (RR=0.83, 95%CI 0.70 to 0.98), TMP-SMZ (RR=0.88, 95%CI 0.78 to 0.99) and fosfomycin (RR=0.74, 95%CI 0.59 to 0.93), and which of fosfomycin was higher than penicillin (RR=1.33, 95%CI 1.01 to 1.74) and NSAIDS (RR=1.46, 95%CI 1.11 to 1.92). All differences were statistically significant.ConclusionsCurrent evidence shows that uncomplicated lower urinary tract infection should be recommended to therapy containing quinolones. Due to limited quality and quantity of included studies, more high-quality studies are required to verify the above conclusion.
Objective To evaluate surgical treatment of infected pseudoaneurysm (PA) caused by injection of addictive drugs. Methods The clinical data of 17cases of infected PA caused by drug injection were reviewed retrospectively. Ofthem, 1 case was female, and the other 16 cases were male, aging 24-38 years. The locations were brachial artery in 1 case and femoral artery in 16 cases. Fourteen cases were treated by artificial blood vessel transplantation after resection of the aneurysm and radical debridement, 1 case by amputation for serious infection, and 2 cases by non-operation for different reasons. Results Among 14 cases treated by prosthetic grafts, 13 cases achieved satisfactory results, no blood drawback of lower extremity occurred after operation; 1 case had to be amputated for serious infection. After 3 months of operation, the color Doppler examination showed that the 9 artificial vessel grafts were patent and the pulse of arteria dorsal pedis was good. Conclusion Though artificial vessel grafting has high risk in the vicinity of infected PA, it is still an effective procedure for revascularization in condition that there is no suitable autogenous conduit available for auto transplantation. Sufficient drainage, anti-infection and anti-coagulation therapy should be the key factors after the operation.
ObjectiveTo evaluate the role of CD3+CD4+T cells in patients with nosocomial infection in ICU.
MethodsOne-hundred and eleven patients who admitted in ICU and in respiratory department from March to December in 2014 were recruited in the study.There were 33 patients with community-acquired pneumonia (CAP group), 31 patients without nosocomial infection (NNI group), and 47 patients with hospital-acquired pneumonia (HAP group).The counts of T cells, B cells, CD3+CD4+ T cells, CD3+CD8+ T cells, and NK cells were compared among three groups.
ResultsThe comparison among the groups had no statistical significance in sex and age(P > 0.05).The three groups had statistical significance in APACHEⅡscore, CD3+CD4+T cells, T cells and B cells, but had no statistical significance in CD3+CD8+T cells, CD3+CD4+/CD3+CD8+ T cells, NK cells, white blood cells, neutrophils, procalcitonin or C reactive protein.CD3+CD4+T cells of HAP group were less than other two groups.The area under the ROC curve (AUC) was 0.660, with a threshold of 29.96%, a sensitivity of 93.8%, and a specificity of 40.4%.
ConclusionCD3+CD4+ T cell is an independent predictor for nosocomial infection.
