Universidad Autónoma de Nuevo León

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    23122 research outputs found

    Evaluación morfológica del bulbo olfatorio y del surco olfatorio en población de México

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    Se analizaron un total de 140 estudios de imagen de resonancia magnética, encontrando que la mayoría de la población evaluada pertenecían al género femenino siendo representadas por un 57.85% (81), la media de edad de nuestra población global fue de 45.31 +- 19.17 años y la media respecto al volumen del bulbo olfatorio (mm3) para el lado derecho fue de 30.43+-15.17 mm3 y del lado izquierdo de 29.12 +- 14.16 mm3. En cuanto a la profunidad del surco olfatorio (mm) la media del lado derecho fue de 8.41 +- 1.81 mm e izquierdo de 8.24 +- 1.68m

    Is the Cis-Element CACCC-Box a Master Regulatory Element during Cardiovascular Disease? A Bioinformatics Approach from the Perspective of the Krüppel-like Family of Transcription Factors

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    The CACCC-box motif emerges as a pivotal cis-regulatory element implicated in diverse developmental processes and diseases, particularly cardiovascular diseases (CVDs). This study centers on the intricate interplay between the CACCC-box and its binding proteins such as: the Krüppel-Like Family (KLF) of transcription factors as primary effectors in the context of CVDs. Our analysis was through a bioinformatics approach, which revealed significant transcriptional activity among KLF subgroup 2, exhibiting the highest number of interactions focusing on the established roles: pluripotency, cancer, and cardiovascular development and diseases. Our analysis reveals KLF’s interactions with GATA4, MEF2C, NKX2.5 and other ~90 potential genes that participate in the regulation of the hypertrophic environment (or CVDs’ Environment). Also, the GO analysis showed that genes containing the motif CACCC were enriched for multiple CVDs; in combination with STRING analysis, these results pointed to a link between KLFs and these diseases. The analysis further identifies other potential CACCC-box binding factors, such as SP family members, WT1, VEZF1, and -SALL4, which are implicated in cardiac contraction, remodeling, and inflammation processes

    Evaluation of Passive Films on 17-7PH and 410 Stainless Steel Exposed to NaCl Solution

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    This work covers the formation of a passive state for two different alloys used in the aeronautical industry. The aim of this study is to investigate the effectiveness of passivation treatments on 17-7PH and 410 SS (stainless steel) samples, specifically when performed with citric and nitric acid solutions at 49 °C using an immersion time of 90 min and subsequent exposure in 3.5 wt.% NaCl solution. Employing the cyclic potentiodynamic polarization (CPP) technique, the corrosion properties of the passivated material were evaluated according to the ASTM G65-11 standard. A microstructural analysis was performed using scanning electron microscopy (SEM). The passivated layer was characterized via X-ray photoelectron spectroscopy. In the results, the CPP curves showed positive hysteresis, indicating pitting localized corrosion, and 17-7PH steel passivated at 49 °C for 90 min in citric acid exhibited lower corrosion rate values equivalent to ×10−3 mm/year

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