ESP Abstracts 2013.
Ontology highlight
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PROVIDER: S-EPMC6763540 | biostudies-literature |
REPOSITORIES: biostudies-literature
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Project description:Background: To externally validate the relationship of R.E.N.A.L nephrometry score to perioperative outcomes following partial nephrectomy Methods: We retrospectively reviewed our institutions database for any patient undergoing a partial nephrectomy from January 2011 to January 2012. R.E.N.A.L nephrometry score was compared with different pathologic features of these tumours. Results: A total of 79 patients underwent partial nephrectomy and had imaging studies available. Higher R.E.N.A.L score was associated with increased blood loss (p<0.001), increased hospital stay (p<0.001), increased preoperative (p=0.035) and pathologic tumour size (p<0.001) and increased risk of complications (p=0.015). However, there were no significant differences with respect to demographic characteristics, type of procedure and renal ischemia time (Table 1). Conclusions: Increasing R.E.N.A.L score is associated with increased blood loss, hospital stay and complications.
| S-EPMC3854476 | biostudies-literature
Project description: Not available
| S-EPMC4098091 | biostudies-literature
Project description: Not available
| S-EPMC3679720 | biostudies-literature
Project description:INTRODUCTION: Ginsenoside Rg3 is a natural active ingredient that is extracted from Korean red ginseng root. It elevates therapeutic effect of radiotherapy and chemotherapy, but the study found that the application of Rg3 is heavily limited by its low bioavailability and poor absorption via oral administration. METHOD: Rg3-loaded PEG-PLGA-NPs (Rg3-NPs) were prepared by the modified spontaneous emulsification solvent diffusion (SESD) method, and the physicochemical characteristics of Rg3-NPs were investigated in our study. We treated primary glioblastoma with 50 µM Rg3-NPs for 48h. We then used gene expression arrays (Illumina) for genome-wide expression analysis and validated the results for genes of interest by means of Real-Time PCR. Functional annotations were then performed using the DAVID and KEGG online tools. RESULTS: MTT shows that the growth of cells can be significantly inhibited by Rg3-NPs in a dose-dependence manner. FCM test shows Rg3-NPs can be released from the conjugate nanoparticle and react with the genes in the cell nuclei causing changes in the gene molecules. We also found that cancer cells treated with Rg3-NPs undergo cell-cycle arrest at different checkpoints. This arrest was associated with a decrease in the mRNA levels of core regulatory genes as determined by microarray-analysis and verified by Real-Time PCR. Furthermore, Rg3-NPs induced the expression of apoptotic and anti-migratory proteins p53 in cell lines. CONCLUSIONS: The results of the present study, together with the results of earlier studies show that Rg3-NPs targets genes involved in the progression of the M-phase of the cell cycle. It is associated with several important pathways, which include apoptosis (p53). Rg3-NPs may be a potent cell-cycle regulation drug targeting the M-phase in glioblastoma cell lines.
| S-EPMC3635504 | biostudies-literature
Project description:Objectives: Myocardial fibrosis in noninfarcted myocardium is emerging as a principal phenotype of vulnerability to adverse events such as mortality and hospitalization for heart failure (HHF), but its optimal noninvasive measurement remains uncertain despite consistently robust histologic validation data for extracellular volume fraction (ECV). We therefore compared ECV, native T1, post contrast T1, the gadolinium contrast partition coefficient (lambda), and the presence of nonischemic scar in their associations with mortality and HHF outcomes. Method: To quantify of myocardial fibrosis, we performed T1 mapping (MOLLI) in basal and mid short axis slices with cardiovascular magnetic resonance (CMR) before contrast and 12-30 minutes post contrast bolus in 1185 consecutive patients without amyloidosis, hypertrophic or stress cardiomyopathy. We assessed associations with outcomes using Kaplan-Meier plots and chi square values from univariable Cox regression models. All standard T1 mapping parameters were obtained: native and post contrast myocardial T1, the partition coefficient lambda, and ECV. ECV = (1-hematocrit) · [?R1myocardium]/[?R1bloodpool], where R1 = 1/T1 Late gadolinium enhancement imaging with phase sensitive reconstruction identified nonischemic scar. Results: Over a median of 1.7 years, 111 individuals experienced events after CMR: 55 HHF events and 74 deaths. ECV yielded better separation of Kaplan-Meier curves in a dose dependent fashion (Figure) and also stronger associations with the combined endpoint of death or HHF. The ECV chi square (77.3, p < 0.001) was at least twice as large as the Native T1 chi square (37.5, p < 0.001), the lambda chi square (34.8, p < 0.001) and nonischemic scar (chi square = 20.5, p<0.001). Post-contrast T1 was not associated with outcomes, even when adjusting further for time after contrast bolus, renal function, and patient weight (chi square <3, p >0.10). Conclusion: Analogous to histologic previously published validation data, quantitative ECV myocardial fibrosis measures associated with outcomes far stronger than other surrogate measures outcome measures such as native T1, post contrast T1 and nonischemic scar on LGE images. These data suggest that ECV is the noninvasive metric of choice to measure myocardial fibrosis. Figure. Kaplan-Meier Plots for T1 mapping parameters.
| S-EPMC4892127 | biostudies-literature
Project description:BACKGROUND:Journals are trying to make their papers more accessible by creating a variety of research summaries including graphical abstracts, video abstracts, and plain language summaries. It is unknown if individuals with science, science-related, or non-science careers prefer different summaries, which approach is most effective, or even what criteria should be used for judging which approach is most effective. A survey was created to address this gap in our knowledge. Two papers from Nature on similar research topics were chosen, and different kinds of research summaries were created for each one. Questions to measure comprehension of the research, as well as self-evaluation of enjoyment of the summary, perceived understanding after viewing the summary, and the desire for more updates of that summary type were asked to determine the relative merits of each of the summaries. RESULTS:Participants (n = 538) were randomly assigned to one of the summary types. The response of adults with science, science-related, and non-science careers were slightly different, but they show similar trends. All groups performed well on a post-summary test, but participants reported higher perceived understanding when presented with a video or plain language summary (p<0.0025). All groups enjoyed video abstracts the most followed by plain language summaries, and then graphical abstracts and published abstracts. The reported preference for different summary types was generally not correlated to the comprehension of the summaries. Here we show that original abstracts and graphical abstracts are not as successful as video abstracts and plain language summaries at producing comprehension, a feeling of understanding, and enjoyment. Our results indicate the value of relaxing the word counts in the abstract to allow for more plain language or including a plain language summary section along with the abstract.
| S-EPMC6863540 | biostudies-literature