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ResearcherID: H-7913-2013
SciProfiles: 832449

Keywords

Cellular physiology, antioxidants, cardiovascular diseases

Countries

Chile

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Employment (2)

Universidad de Chile: Santiago, RM, CL

profesor/a (Universidad de Chile)
Employment
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Universidad de Chile via ORCID Member Portal

Karolinska Institutet-Huddinge Campus: Huddinge, Stockholm, SE

2006 to 2008 | Postdoc (Neurobiology Care Sciences and Society)
Employment
Source: Self-asserted source
Omar Porras

Education and qualifications (2)

Universidad de Chile Facultad de Medicina: Santiago, CL

2000 to 2006 | PhD in Biomedical Sciences
Education
Source: Self-asserted source
Omar Porras

Universidad de Chile Facultad de Ciencias Quimicas y Farmacéuticas: Santiago, CL

1992-03-04 to 1999-08-16 | Biochemist
Education
Source: Self-asserted source
Omar Porras

Works (37)

The antioxidant property of CAPE depends on TRPV1 channel activation in microvascular endothelial cells

Redox Biology
2025-03 | Journal article | Author
DOI: 10.1016/j.redox.2025.103507
Part of ISSN: 2213-2317
Contributors: Miltha Hidalgo; Bárbara Railef; Vania Rodríguez; Carolina Navarro; Vanessa Rubio; Jorge Meneses-Pacheco; Sandra Soto-Alarcón; Christine Kreindl; Carolina Añazco; Leandro Zuñiga et al.
Source: Self-asserted source
Omar Porras

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

Antioxidants
2025-02-26 | Journal article
DOI: 10.3390/antiox14030263
Contributors: Miguel Angel Varas Condori; María Fernanda Arias-Santé; Raquel Bridi; Miguel Ángel Rincón-Cervera; Omar Porras; Angélica Reyes-Jara; Adriano Costa de Camargo
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Crossref
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Fecal Microbiota Transplantation from Young-Trained Donors Improves Cognitive Function in Old Mice Through Modulation of the Gut-Brain Axis

aging and disease
2024 | Journal article
DOI: 10.14336/ad.2024.1089
Part of ISSN: 2152-5250
Source: Self-asserted source
Omar Porras

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

Plants
2024-12-11 | Journal article
DOI: 10.3390/plants13243473
Contributors: Pamela Ruth Toledo-Merma; María Fernanda Arias-Santé; Miguel Ángel Rincón-Cervera; Omar Porras; Raquel Bridi; Samantha Rhein; Martina Sánchez-Contreras; Paulina Hernandez-Pino; Nicolás Tobar; Luis Puente-Díaz et al.
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Crossref
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Antioxidant properties of phenolic extracts of murtilla pomace: First report on the importance of soluble and insoluble-bound compounds

Food Research International
2024-11 | Journal article
DOI: 10.1016/j.foodres.2024.115114
Part of ISSN: 0963-9969
Contributors: Ana Catalina Ospina-Posada; Omar Porras; Miguel Angel Rincón-Cervera; Juana Frias; Acácio Antonio Ferreira Zielinski; Raquel Bridi; María Fernanda Arias-Santé; Adriano Costa de Camargo
Source: Self-asserted source
Omar Porras

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

Food Bioscience
2024-02 | Journal article
DOI: 10.1016/j.fbio.2024.103616
Contributors: Manuela de Almeida Samary da Silva; Raquel Bridi; María Fernanda Arias-Santé; Miguel Angel Rincón-Cervera; Lee A. Meisel; Samantha Rhein; Omar Porras; Katherine Márquez Calvo; Basílio Carrasco; Adriano Costa de Camargo
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Crossref

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

Antioxidants
2024-01 | Journal article | Author
DOI: 10.3390/antiox13020159
Contributors: Christine Kreindl; Sandra A. Soto-Alarcón; Miltha Hidalgo; Ana Luisa Riveros; Carolina Añazco; Rodrigo Pulgar; Omar Porras
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Multidisciplinary Digital Publishing Institute
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Selenium Compounds Affect Differently the Cytoplasmic Thiol/Disulfide State in Dermic Fibroblasts and Improve Cell Migration by Interacting With the Extracellular Matrix

2023-12-15 | Preprint
DOI: 10.20944/preprints202312.1141.v1
Contributors: Christine Kreindl; Sandra Soto-Alarcón; Miltha Hidalgo; Ana Riveros; Carolina Añazco; Rodrigo Pulgar; Omar Porras
Source: check_circle
Crossref

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

International Journal of Molecular Sciences
2022-01-31 | Journal article
DOI: 10.3390/ijms23031673
Part of ISSN: 1422-0067
Contributors: José Sarmiento; Rodrigo Pulgar; Dinka Mandakovic; Omar Porras; Carlos A. Flores; Diego Luco; Carlos Andres Trujillo Jurado ; Briam Díaz-Esquivel; Cinthya Alvarez; Alejandro Acevedo et al.
Source: Self-asserted source
Omar Porras

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

Food Research International
2021-04 | Journal article
DOI: 10.1016/j.foodres.2020.110101
Part of ISSN: 0963-9969
Contributors: Aldo Leyva; Rocío Alejandra Chavez-Santoscoy; Omar Porras; Miltha Hidalgo-Ledesma; Aracely Serrano-Medina; Ana Alejandra Ramírez-Rodríguez; Nydia Alejandra Castillo-Martinez
Source: Self-asserted source
Omar Porras

Sucralose Stimulates Mitochondrial Bioenergetics in Caco-2 Cells

Frontiers in Nutrition
2021-01-18 | Journal article
DOI: 10.3389/fnut.2020.585484
Part of ISSN: 2296-861X
Contributors: Juan Carlos Bórquez; Miltha Hidalgo; Juan M. Rodríguez; Alejandra Montaña; Omar Porras; Rodrigo Troncoso; Roberto Bravo-Sagua
Source: Self-asserted source
Omar Porras

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

Antioxidants
2020-02-14 | Journal article
DOI: 10.3390/antiox9020155
Part of ISSN: 2076-3921
Contributors: Miltha Hidalgo; Vania Rodríguez; Christine Kreindl; Omar Porras
Source: Self-asserted source
Omar Porras

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

Journal of Cellular Physiology
2019-10 | Journal article
DOI: 10.1002/jcp.28494
Part of ISSN: 0021-9541
Part of ISSN: 1097-4652
Contributors: Ivo Carrasco‐Wong; Cherie Hernández; Carlos Jara‐Gutiérrez; Omar Porras; Paola Casanello
Source: Self-asserted source
Omar Porras

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

Revista chilena de nutrición
2018 | Journal article
DOI: 10.4067/s0717-75182018000200032
Part of ISSN: 0717-7518
Contributors: Miltha Hidalgo; Vania Rodríguez; Omar Porras.
Source: Self-asserted source
Omar Porras via Crossref Metadata Search

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

Redox biology
2018-06 | Journal article
DOI: 10.1016/j.redox.2018.02.023
PMID: 29524842
PMC: PMC5952670
Contributors: Hernández H; Parra A; Tobar N; Molina J; Kallens V; Hidalgo M; Varela D; Martínez J; Porras O
Source: Self-asserted source
Omar Porras via Europe PubMed Central

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

Molecular and cellular endocrinology
2018-02 | Journal article
DOI: 10.1016/j.mce.2017.09.028
PMID: 28943275
Contributors: Bernal-Sore I; Navarro-Marquez M; Osorio-Fuentealba C; Díaz-Castro F; Del Campo A; Donoso-Barraza C; Porras O; Lavandero S; Troncoso R
Source: Self-asserted source
Omar Porras via Europe PubMed Central

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

Journal of cellular biochemistry
2017-05 | Journal article
DOI: 10.1002/jcb.25650
PMID: 27403856
Contributors: Kallens V; Tobar N; Molina J; Bidegain A; Smith PC; Porras O; Martínez J
Source: Self-asserted source
Omar Porras via Europe PubMed Central

Real-Time H2 O2 Measurements in Bone Marrow Mesenchymal Stem Cells (MSCs) Show Increased Antioxidant Capacity in Cells From Osteoporotic Women.

Journal of cellular biochemistry
2017-03 | Journal article
DOI: 10.1002/jcb.25739
PMID: 27632788
Contributors: Román F; Urra C; Porras O; Pino AM; Rosen CJ; Rodríguez JP
Source: Self-asserted source
Omar Porras via Europe PubMed Central

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

Journal of cellular physiology
2017-01 | Journal article
DOI: 10.1002/jcp.25398
PMID: 27037895
Contributors: Tobar N; Porras O; Smith PC; Barros LF; Martínez J
Source: Self-asserted source
Omar Porras via Europe PubMed Central

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

Placenta
2014-09 | Journal article
DOI: 10.1016/j.placenta.2014.06.231
Part of ISSN: 0143-4004
Contributors: Ivo Carrasco; Omar Porras; Paola Casanello
Source: Self-asserted source
Omar Porras via Crossref Metadata Search

Functional interactions of fibrillar and oligomeric amyloid-β with alpha7 nicotinic receptors in Alzheimer's disease.

Journal of Alzheimer's disease : JAD
2011 | Journal article
DOI: 10.3233/jad-2010-101242
PMID: 21116052
Contributors: Lilja AM; Porras O; Storelli E; Nordberg A; Marutle A
Source: Self-asserted source
Omar Porras via Europe PubMed Central

Long-term effects of galantamine treatment on brain functional activities as measured by PET in Alzheimer's disease patients.

Journal of Alzheimer's disease : JAD
2011 | Journal article
DOI: 10.3233/jad-2010-101290
PMID: 21157026
Contributors: Keller C; Kadir A; Forsberg A; Porras O; Nordberg A
Source: Self-asserted source
Omar Porras via Europe PubMed Central

Increased expression of the transient receptor potential melastatin 7 channel is critically involved in lipopolysaccharide-induced reactive oxygen species-mediated neuronal death.

Antioxidants & redox signaling
2011-11 | Journal article
DOI: 10.1089/ars.2010.3825
PMID: 21539414
Contributors: Nuñez-Villena F; Becerra A; Echeverría C; Briceño N; Porras O; Armisén R; Varela D; Montorfano I; Sarmiento D; Simon F
Source: Self-asserted source
Omar Porras via Europe PubMed Central

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

Biochemical and biophysical research communications
2011-07 | Journal article
DOI: 10.1016/j.bbrc.2011.06.097
PMID: 21708127
Contributors: Porras OH; Stutzin A
Source: Self-asserted source
Omar Porras via Europe PubMed Central

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

Journal of cellular and molecular medicine
2010-06 | Journal article
DOI: 10.1111/j.1582-4934.2009.00916.x
PMID: 19799651
PMC: PMC3829014
Contributors: Nilbratt M; Porras O; Marutle A; Hovatta O; Nordberg A
Source: Self-asserted source
Omar Porras via Europe PubMed Central

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

Alzheimer's & Dementia
2008-07 | Journal article
DOI: 10.1016/j.jalz.2008.05.720
Part of ISSN: 1552-5260
Contributors: Mats Nilbratt; Omar Porras; Amelia Marutle; Outi Hovatta; Agneta Nordberg
Source: Self-asserted source
Omar Porras via Crossref Metadata Search

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

Alzheimer's & Dementia
2008-07 | Journal article
DOI: 10.1016/j.jalz.2008.05.1964
Part of ISSN: 1552-5260
Contributors: Omar Porras
Source: Self-asserted source
Omar Porras via Crossref Metadata Search

Na(+)-Ca(2+) cosignaling in the stimulation of the glucose transporter GLUT1 in cultured astrocytes.

Glia
2008-01 | Journal article
DOI: 10.1002/glia.20589
PMID: 17924581
Contributors: Porras OH; Ruminot I; Loaiza A; Barros LF
Source: Self-asserted source
Omar Porras via Europe PubMed Central

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

The Journal of experimental medicine
2007-12 | Journal article
DOI: 10.1084/jem.20071285
PMID: 18056288
PMC: PMC2150977
Contributors: Matus S; Burgos PV; Bravo-Zehnder M; Kraft R; Porras OH; Farías P; Barros LF; Torrealba F; Massardo L; Jacobelli S et al.
Source: Self-asserted source
Omar Porras via Europe PubMed Central

A quantitative overview of glucose dynamics in the gliovascular unit.

Glia
2007-09 | Journal article
DOI: 10.1002/glia.20375
PMID: 17659523
Contributors: Barros LF; Bittner CX; Loaiza A; Porras OH
Source: Self-asserted source
Omar Porras via Europe PubMed Central

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

Cell Death and Differentiation
2006-10 | Journal article
DOI: 10.1038/sj.cdd.4401852
PMID: 16410794
Contributors: Castro J; Ruminot I; Porras OH; Flores CM; Hermosilla T; Verdugo E; Venegas F; Härtel S; Michea L; Barros LF
Source: Self-asserted source
Omar Porras via Europe PubMed Central

Why glucose transport in the brain matters for PET.

Trends in neurosciences
2005-03 | Journal article
DOI: 10.1016/j.tins.2005.01.002
PMID: 15749163
Contributors: Barros LF; Porras OH; Bittner CX
Source: Self-asserted source
Omar Porras via Europe PubMed Central

Glutamate mediates acute glucose transport inhibition in hippocampal neurons.

The Journal of neuroscience : the official journal of the Society for Neuroscience
2004-10 | Journal article
DOI: 10.1523/jneurosci.1882-04.2004
PMID: 15509754
Contributors: Porras OH; Loaiza A; Barros LF
Source: Self-asserted source
Omar Porras via Europe PubMed Central

Glutamate triggers rapid glucose transport stimulation in astrocytes as evidenced by real-time confocal microscopy.

The Journal of neuroscience : the official journal of the Society for Neuroscience
2003-08 | Journal article
DOI: 10.1523/jneurosci.23-19-07337.2003
PMID: 12917367
Contributors: Loaiza A; Porras OH; Barros LF
Source: Self-asserted source
Omar Porras via Europe PubMed Central

Activation of GLUT1 by metabolic and osmotic stress: potential involvement of AMP-activated protein kinase (AMPK).

Journal of cell science
2002-06 | Journal article
PMID: 12006627
Contributors: Barnes K; Ingram JC; Porras OH; Barros LF; Hudson ER; Fryer LG; Foufelle F; Carling D; Hardie DG; Baldwin SA
Source: Self-asserted source
Omar Porras via Europe PubMed Central

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

Pflugers Archiv
2001-07 | Journal article
DOI: 10.1007/s004240100577
PMID: 11510895
Contributors: Barros LF; Barnes K; Ingram JC; Castro J; Porras OH; Baldwin SA
Source: Self-asserted source
Omar Porras via Europe PubMed Central

Cytosolic [Ca(2+)] modulates basal GLUT1 activity and plays a permissive role in its activation by metabolic stress and insulin in rat epithelial cells.

Cell calcium
2000-08 | Journal article
DOI: 10.1054/ceca.2000.0135
PMID: 10970766
Contributors: Quintanilla RA; Porras OH; Castro J; Barros LF
Source: Self-asserted source
Omar Porras via Europe PubMed Central
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