3 research outputs found

    Repositioning metformin and propranolol for colorectal and triple negative breast cancers treatment

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    Drug repositioning refers to new uses for existing drugs outside the scope of the original medical indications. This approach fastens the process of drug development allowing fnding efective drugs with reduced side efects and lower costs. Colorectal cancer (CRC) is often diagnosed at advanced stages, when the probability of chemotherapy resistance is higher. Triple negative breast cancer (TNBC) is the most aggressive type of breast cancer, highly metastatic and difcult to treat. For both tumor types, available treatments are generally associated to severe side efects. In our work, we explored the efect of combining metformin and propranolol, two repositioned drugs, in both tumor types. We demonstrate that treatment afects viability, epithelial-mesenchymal transition and migratory potential of CRC cells as we described before for TNBC. We show that combined treatment afects diferent steps leading to metastasis in TNBC. Moreover, combined treatment is also efective preventing the development of 5-FU resistant CRC. Our data suggest that combination of metformin and propranolol could be useful as a putative adjuvant treatment for both TNBC and CRC and an alternative for chemo-resistant CRC, providing a low-cost alternative therapy without associated toxicity.Fil: Anselmino, L. E. Universidad Nacional de Rosario. Facultad de Ciencias Médicas. Instituto de Inmunología Clínica y Experimental de Rosario (IDICER-CONICET); Argentina.Fil: Anselmino, L. E. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina.Fil: Baglioni, M. V. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina.Fil: Baglioni, M. V. Universidad Nacional de Rosario. Facultad de Ciencias Médicas. Instituto de Genética Experimental; Argentina.Fil: Malizia, Florencia. Universidad Nacional de Rosario. Facultad de Ciencias Médicas. Instituto de Inmunología Clínica y Experimental de Rosario (IDICER-CONICET); Argentina.Fil: Malizia, Florencia. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina.Fil: Cesatti Laluce, N. Universidad Nacional de Rosario. Facultad de Ciencias Médicas. Instituto de Inmunología Clínica y Experimental de Rosario (IDICER-CONICET); Argentina.Fil: Cesatti Laluce, N. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina.Fil: Borini Etichetti, C. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina.Fil: Rico, M. J. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina.Fil: Rico, M. J. Universidad Nacional de Rosario. Facultad de Ciencias Médicas. Instituto de Genética Experimental; Argentina.Fil: Menacho Márquez, M. Universidad Nacional de Rosario. Facultad de Ciencias Médicas. Instituto de Inmunología Clínica y Experimental de Rosario (IDICER-CONICET); Argentina.Fil: Menacho Márquez, M. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina.Fil: Menacho Márquez, M. Universidad Nacional de Rosario. Facultad de Ciencias Médicas. Centro de Investigación y Producción de Reactivos Biológicos (CIPReB); Argentina

    Mean Platelet Volume as Prognostic Marker in Patients with Acute Coronary Syndrome

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      Background: Mean platelet volume (MPV) has been described as a predictor of cardiovascular events in patients with acute coronary syndrome. However, there is limited evidence of its role as prognostic marker in elderly patients. Objective: The aim of this study was to evaluate whether MPV is an independent predictor of events during follow-up of patients over 65 years of age with acute coronary syndrome. Methods: This prospective study included patients over 65 years with ST-segment elevation or non ST-segment elevation acute coronary syndrome. They were divided into two groups: high MPV (10.9 fL- 3rd tertile) and low MPV (<10.9 fL -1st and 2nd tertile). Different clinical variables were analyzed and the TIMI and GRACE scores were calculated. The primary endpoint was the composite of all-cause mortality and cardiovascular readmission (for acute coronary syndrome, heart failure and stroke) over the follow-up period. Results: A total of 250 patients were included in the study. Mean age was 74±7 years and 44% were women. Eighty-five patients presented with high and 165 with low MPV. Median follow-up was 302 days (interquartile range 130-558) and the primary endpoint was observed in 17.6% of cases (44 patients). In the multivariate Cox regression analysis, high MPV [HR 7.23 (95% CI 2.47-11.6); p=0.001], and TIMI [HR 3.10 (95% CI 1.46-6.59); p=0.03] and GRACE [HR 1.02 (95% CI 1.01-1.07); p=0.002] high risk scores were independent predictors of the primary endpoint. The area under the curve for MPV was 0.71 (95% CI 0.59-0.82), p=0.001. Conclusions: In our population, MPV emerged as an independent predictor of the composite endpoint, adjusted for other variables as the TIMI and GRACE scores.INTRODUCCIÓN Se ha descripto al volumen plaquetario medio (VPM)  como predictor de eventos cardiovasculares en pacientes con SCA. Hay poca evidencia en pacientes añosos. El objetivo de este trabajo es evaluar si el VPM es un predictor independiente de eventos en el seguimiento en pacientes mayores de 65 años con SCA. MATERIALES Y METODOS Estudio prospectivo que incluyó pacientes mayores de 65 años con SCA con y sin elevación del ST. Se dividieron en dos grupos: VPM alto (≥ 10,9 fL- tercilo 3) y VPM bajo (<10,9 fL -tercilos 1 y 2). Se analizaron diferentes variables clínicas y se calcularon los scores TIMI y GRACE. Se consideró el punto final combinado de mortalidad global y reinternación cardiovascular (por SCA, Insuficiencia cardíaca y Stroke) en el seguimiento. RESULTADOS. Se incluyeron 250 pacientes con una edad de 74 ± 7 años, 44% mujeres. En el grupo VPM alto hubo 85 pacientes y 165 en el VPM bajo  La mediana de seguimiento fue 302 días (rango intercuartilo 130-558) y el punto primario se observó en el 17,3% (44 pacientes). En el análisis multivariado por regresión Cox el VPM alto fue predictor independiente del punto primario (HR 7,23 (IC95% 2,47-11,6), p=0,001), al igual que el TIMI alto riesgo (3,10 (IC95% 1,46-6,59), p=0,03) y el Score GRACE (1,02 (IC95% 1,01-1,07), p=0,002). El VPM presentó un ABC 0,71 (IC95%  0,59-0,82), p=0,001. CONCLUSIONES. En nuestra población el VPM se comportó como predictor independiente del punto combinado, ajustado a otras variables como el score TIMI y GRACE

    Analysis of Outcomes in Ischemic vs Nonischemic Cardiomyopathy in Patients With Atrial Fibrillation A Report From the GARFIELD-AF Registry

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    IMPORTANCE Congestive heart failure (CHF) is commonly associated with nonvalvular atrial fibrillation (AF), and their combination may affect treatment strategies and outcomes
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