1,727,220 research outputs found
MiR-5095 inhibits proliferation, migration, and invasion of gastric cancer cells by targeting CEACAM5
No full textAbstract Gastric cancer (GC) is a leading cause of cancer-related death, with poor prognosis due to metastasis. Despite improvements in early detection and treatment, effective therapies for metastatic GC are limited. Studies suggest that microRNAs play a key role in GC progression and metastasis. The expression of miR-5095, CEACAM5 and EMT-related proteins were determined by RT-qPCR and western blotting. The effects of miR-5095 on GC cell proliferation were assessed using CCK-8 and EdU assays, while the impact of miR-5095 on GC cell migration and invasion was evaluated using transwell assays. Bioinformatic tools were used to predict potential target genes of miR-5095, and the interaction between miR-5095 and CEACAM5 was confirmed through dual-luciferase reporter assays. Additionally, the expression of CEACAM5 was reversed by overexpressing plasmids to verify whether miR-5095 exerts its effects through CEACAM5. The in vivo effects of miR-5095 on tumor growth and metastasis were studied using a xenograft mouse model. miR-5095 expression was significantly reduced, and CEACAM5 expression was elevated in GC tissues and cell lines compared to adjacent normal tissues and cells. In vitro, miR-5095 overexpression notably inhibited CEACAM5 expression and suppressed GC cell proliferation, migration, invasion, and EMT in AGS and HGC-27 cells. Moreover, luciferase reporter assays confirmed that miR-5095 directly targets CEACAM5. The inhibitory effects of miR-5095 on GC cells were reversed by CEACAM5 overexpression. In vivo, miR-5095 significantly inhibits the proliferation and metastasis of gastric cancer
Comparative effectiveness of initial antiretroviral therapy regimens: ACTG 5095 and 5142 clinical trials relative to ART-CC cohort study
Full text linkBACKGROUND:
The generalizability of antiretroviral therapy (ART) clinical trial efficacy findings to routine care settings is not well studied. We compared the relative effectiveness of initial ART regimens estimated in AIDS Clinical Trial Group (ACTG) randomized controlled trials with that among patients receiving ART at Antiretroviral Therapy Cohort Collaboration (ART-CC) study sites.
METHODS:
Treatment-naive HIV-infected patients initiating identical ART regimens in ACTG trials (A5095 and A5142) and at 15 ART-CC cohort study sites were included. Virological failure (HIV-1 RNA >200 copies/mL) at 24 and 48 weeks, incident AIDS-defining events and mortality were measured according to study design (ART-CC cohort vs. ACTG trial) and stratified by third drug [abacavir (ABC), efavirenz (EFV), and lopinavir/r (LPV/r)]. We used logistic regression to estimate and compare odds ratios (OR) for virological failure between different regimens and study designs, and used Cox models to estimate and compare hazard ratios for AIDS and death.
RESULTS:
Compared with patients receiving ABC, those receiving EFV had roughly half the odds of 24-week virologic failure (>200 copies/mL) in both ACTG 5095 (OR = 0.53, 95% confidence interval: 0.36 to 0.79) and ART-CC (0.46, 0.37 to 0.57). Virologic superiority of EFV (vs. ABC) seemed comparable in ART-CC and ACTG 5095 (ratio of ORs 0.86, 95% confidence interval: 0.54 to 1.35). Odds ratios for 48-week virologic failure, comparing EFV with LPV/r, were also comparable in ACTG 5142 and ART-CC (ratio of ORs: 0.87, 0.45 to 1.69).
CONCLUSIONS:
Between ART regimen virologic efficacy of third drugs ABC, EFV, and LPV/r observed in the ACTG 5095 and 5142 trials seem generalizable to the routine care setting of ART-CC clinical cohorts
Y-12 81-10 Area Site Characterization Report 5095-SR-01-1
No full text5095-SR-01-1 Y-12 81-10 Area Site Characterization Repor
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Palm fibre tool from cave 11Q. MS 5095/3
No full textThe Schøyen Collection includes a palm fibre object claimed to have come from Cave 11. According to Kando, it was found by the Bedouin together with the Temple Scroll, the Temple Scroll wrapper and minor fragments from 11QTᵃ (MS 5095/1) in the scroll jar that is still the property of William Kando
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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