Publications by authors named "I Gutierrez Lezama"

Thyroid hormone binds to specific nuclear receptors, regulating the expression of target genes, with major effects on cardiac function. Triiodothyronine (T3) increases the expression of key proteins related to calcium homeostasis, such as the sarcoplasmic reticulum calcium ATPase pump, but the detailed mechanism of gene regulation by T3 in cardiac voltage-gated calcium (Cav1.2) channels remains incompletely explored.

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The tear film is a highly dynamic biofluid capable of reflecting pathology-associated molecular changes, not only in the ocular surface but also in other tissues and organs. Molecular analysis of this biofluid offers a non-invasive way to diagnose or monitor diseases, assess medical treatment efficacy, and identify possible biomarkers. Due to the limited sample volume, collecting tear samples requires specific skills and appropriate tools to ensure high quality and maximum efficiency.

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Article Synopsis
  • Exercise is crucial for heart health as it boosts glucose transport in heart muscle cells by increasing the GLUT4 protein at the cell membrane.
  • The study found that after exercise, GLUT4 gene expression and protein levels rose significantly, while certain microRNAs (miR-223-3p and miR-223-5p) decreased, which is linked to an increase in the transcription factor MEF2A that promotes GLUT4.
  • Overall, the research suggests that the enhancement of GLUT4 in heart muscle after exercise is partly due to lower levels of miR-223-5p, which allows for more MEF2A, NRF1, and FOXO1 to be produced.
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Retinal Müller cells secrete extracellular vesicles that can be captured by other Müller cells. In response to a signal that may be deleterious for the retina, Müller glia-derived extracellular vesicles spread instructions to induce gene expression changes in other cells.

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Background: Cash transfer programs (CTPs) aim to strengthen financial security for vulnerable households. This potentially enables improvements in diet, hygiene, health service access and investment in food production or income generation. The effect of CTPs on the outcome of children already severely malnourished is not well delineated.

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