All Stories

  1. Phenolic Compounds of Grape Pomace Skin Released During SHIME Colonic Fermentation Shape the Transcriptomic Profile of Tight Junctions, Improving the Barrier Properties in Caco-2 Cells

    Article • International Journal of Molecular Sciences, May 2026, MDPI AG

    Dr. Omar H Porras

  2. The adverse effect of a hypercaloric high‐fat diet feeding on hypothalamic cellular energy homeostasis is attenuated by a hypoglycemiant

    Article • Journal of Neuroendocrinology, November 2025, Wiley

    Dr. Omar H Porras

  3. Valorization of Carménère Grape Pomace: Extraction, Microencapsulation, and Evaluation of the Bioactivity of Polyphenols in Caco-2 Cells

    Article • International Journal of Molecular Sciences, August 2025, MDPI AG

    Dr. Omar H Porras

  4. Ion channel activation (TRPV1) commands the rapid antioxidant response in vascular cells

    Article • Redox Biology, March 2025, Elsevier

    Dr. Omar H Porras

  5. Phenolics of Maqui Leaf Residues Exhibit Antioxidant Properties Against Ozone-Induced Oxidation in Fish Model Systems

    Article • Antioxidants, February 2025, MDPI AG

    Dr. Omar H Porras

  6. Phenolic Fractions from Walnut Milk Residue: Antioxidant Activity and Cytotoxic Potential

    Article • Plants, December 2024, MDPI AG

    Dr. Omar H Porras, Dr. Luis A. Puente

  7. Antioxidant properties of phenolic extracts of murtilla pomace: First report on the importance of soluble and insoluble-bound compounds

    Article • Food Research International, November 2024, Elsevier

    Dr. Omar H Porras

  8. Soluble and insoluble-bound phenolic bioactive compounds of Tortola bean leaf and their antioxidant properties in chemical-based assays and Caco-2 cells

    Article • Food Bioscience, February 2024, Elsevier

    Dr. Omar H Porras

  9. Selenium Compounds Affect Differently the Cytoplasmic Thiol/Disulfide State in Dermic Fibroblasts and Improve Cell Migration by Interacting with the Extracellular Matrix

    Article • Antioxidants, January 2024, MDPI AG

    Dr. Omar H Porras

  10. Fecal Microbiota Transplantation from Young-Trained Donors Improves Cognitive Function in Old Mice Through Modulation of the Gut-Brain Axis

    Article • Aging and Disease, January 2024, Aging and Disease

    Dr. Omar H Porras

  11. Selenium Compounds Affect Differently the Cytoplasmic Thiol/Disulfide State in Dermic Fibroblasts and Improve Cell Migration by Interacting With the Extracellular Matrix

    Article • December 2023, MDPI AG

    Dr. Omar H Porras

  12. Nocturnal Light Pollution Induces Weight Gain in Mice and Reshapes the Structure, Functions, and Interactions of Their Colonic Microbiota

    Article • International Journal of Molecular Sciences, January 2022, MDPI AG

    Dr. Omar H Porras

  13. Epicatechin and quercetin exhibit in vitro antioxidant effect, improve biochemical parameters related to metabolic syndrome, and decrease cellular genotoxicity in humans

    Article • Food Research International, April 2021, Elsevier

    Dr. Omar H Porras

  14. Sucralose Stimulates Mitochondrial Bioenergetics in Caco-2 Cells

    Article • Frontiers in Nutrition, January 2021, Frontiers

    Dr. Omar H Porras

  15. Biological Redox Impact of Tocopherol Isomers Is Mediated by Fast Cytosolic Calcium Increases in Living Caco-2 Cells

    Article • Antioxidants, February 2020, MDPI AG

    Dr. Omar H Porras

  16. Human umbilical artery endothelial cells from Large‐for‐Gestational‐Age newborn have increased antioxidant efficiency and gene expression

    Article • Journal of Cellular Physiology, April 2019, Wiley

    Dr. Omar H Porras

  17. Insights into the HyPer biosensor as molecular tool for monitoring cellular antioxidant capacity

    Article • Redox Biology, June 2018, Elsevier

    Dr. Omar H Porras

  18. Mifepristone enhances insulin-stimulated Akt phosphorylation and glucose uptake in skeletal muscle cells

    Article • Molecular and Cellular Endocrinology, February 2018, Elsevier

    Dr. Omar H Porras

  19. Una mirada actualizada de los beneficios fisiológicos derivados del consumo de legumbres

    Article • Revista chilena de nutrición, January 2018, SciELO Comision Nacional de Investigacion Cientifica Y Tecnologica (CONICYT)

    Dr. Omar H Porras

  20. Glucose Promotes a Pro-Oxidant and Pro-Inflammatory Stromal Microenvironment Which Favors Motile Properties in Breast Tumor Cells

    Article • Journal of Cellular Biochemistry, January 2017, Wiley

    Dr. Omar H Porras

  21. Real-Time H2O2Measurements in Bone Marrow Mesenchymal Stem Cells (MSCs) Show Increased Antioxidant Capacity in Cells From Osteoporotic Women

    Article • Journal of Cellular Biochemistry, October 2016, Wiley

    Dr. Omar H Porras

  22. Modulation of Mammary Stromal Cell Lactate Dynamics by Ambient Glucose and Epithelial Factors

    Article • Journal of Cellular Physiology, April 2016, Wiley

    Dr. Omar H Porras

  23. Maternal obesity is associated with an altered antioxidant system in the umbilical artery endothelium: new insights into vascular fetal programming by maternal obesity?

    Article • Placenta, September 2014, Elsevier

    Dr. Omar H Porras

  24. Increased Expression of the Transient Receptor Potential Melastatin 7 Channel Is Critically Involved in Lipopolysaccharide-Induced Reactive Oxygen Species-Mediated Neuronal Death

    Article • Antioxidants & Redox Signaling, November 2011, Mary Ann Liebert Inc

    Dr. Omar H Porras

  25. Glutamate-induced metabolic changes influence the cytoplasmic redox state of hippocampal neurons

    Article • Biochemical and Biophysical Research Communications, July 2011, Elsevier

    Dr. Omar H Porras

  26. Long-term Effects of Galantamine Treatment on Brain Functional Activities as Measured by PET in Alzheimer's Disease Patients

    Article • Journal of Alzheimer’s Disease, March 2011, IOS Press

    Dr. Omar H Porras

  27. Functional Interactions of Fibrillar and Oligomeric Amyloid-β with Alpha7 Nicotinic Receptors in Alzheimer's Disease

    Article • Journal of Alzheimer’s Disease, February 2011, IOS Press

    Dr. Omar H Porras

  28. Neurotrophic factors promote cholinergic differentiation in human embryonic stem cell-derived neurons

    Article • Journal of Cellular and Molecular Medicine, October 2009, Wiley

    Dr. Omar H Porras

  29. P1-133: Functional Acetylcholine receptors are expressed in human embryonic stem cell–derived neurons

    Article • Alzheimer s & Dementia, July 2008, Elsevier

    Dr. Omar H Porras

  30. P3-394: Acetylcholine changes the neuronal metabolic plasticity: A possible cellular mechanism of the glucose hypometabolism in Alzheimer's disease

    Article • Alzheimer s & Dementia, July 2008, Elsevier

    Dr. Omar H Porras

  31. Na+-Ca2+cosignaling in the stimulation of the glucose transporter GLUT1 in cultured astrocytes

    Article • Glia, January 2008, Wiley

    Dr. Omar H Porras

  32. Antiribosomal-P autoantibodies from psychiatric lupus target a novel neuronal surface protein causing calcium influx and apoptosis

    Article • Journal of Experimental Medicine, December 2007, Rockefeller University Press

    Dr. Omar H Porras

  33. A quantitative overview of glucose dynamics in the gliovascular unit

    Article • Glia, January 2007, Wiley

    Dr. Omar H Porras

  34. ATP steal between cation pumps: a mechanism linking Na+ influx to the onset of necrotic Ca2+ overload

    Article • Cell Death and Differentiation, January 2006, Springer Science + Business Media

    Dr. Omar H Porras

  35. Why glucose transport in the brain matters for PET

    Article • Trends in Neurosciences, March 2005, Elsevier

    Dr. Omar H Porras

  36. Glutamate Mediates Acute Glucose Transport Inhibition in Hippocampal Neurons

    Article • Journal of Neuroscience, October 2004, Society for Neuroscience

    Dr. Omar H Porras

  37. Glutamate Triggers Rapid Glucose Transport Stimulation in Astrocytes as Evidenced by Real-Time Confocal Microscopy

    Article • Journal of Neuroscience, August 2003, Society for Neuroscience

    Dr. Omar H Porras

  38. Hyperosmotic shock induces both activation and translocation of glucose transporters in mammalian cells

    Article • Pflügers Archiv - European Journal of Physiology, July 2001, Springer Science + Business Media

    Dr. Omar H Porras

  39. Cytosolic [Ca2+] modulates basal GLUT1 activity and plays a permissive role in its activation by metabolic stress and insulin in rat epithelial cells

    Article • Cell Calcium, August 2000, Elsevier

    Dr. Omar H Porras