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MARCO ANTONIO RAMIREZ GALLARDO

Associate Professor

Universidad de Antofagasta

Antofagasta, Chile

1. Transporte en epitelios 2. Regulación de pH intracelular 3. pH intracelular y patologías asociadas

BIological Sciences, PONTIFICIA UNIVERSIDAD CATOLICA DE CHILE. Chile, 1987
Phisyology, UNIVERSIDAD DE CONCEPCION. Chile, 1996
Physiology, UNIVERSIDADE DE SAO PAULO. Chile, 2000

Postdoctor Full Time

UNIVERSIDADE DE SAO PAULO

Sao Paulo, Brasil

2001 - 2002
Postdoctor Full Time

Hospital Bichat

Paris, Francia

2002 - 2003
Associate Professor Full Time

UNIVERSIDAD DE ANTOFAGASTA

Antofagasta, Chile

2004 - At present

Associate Professor Full Time

Universidad de Antofagasta

Antofagasta, Chile

2004 - At present
Director Full Time

Universidad de Antofagasta, Facultad de Ciencias de la Salud, Departamento Biomédico

Antofagasta, Chile

2010 - 2016

2012- AT PRESENT Marcelo Cornejo. PhD Thesis in Biologycal Sciences. Universidad de Antofagasta, Chile. Tutor: MA Ramírez.

2007-2011 Carmen Aravena Molló. Efecto de trióxido de arsénico sobre la proliferación celular vía activación de la
isoforma 1 del intercambiador Na+/H+ (NHE1) en células MDCK. PhD Thesis in Biologycal Sciences. Universidad de Antofagasta, Chile. Tutor: MA Ramírez.

2007-2010 Natalia Celis Bastidas . Efecto de la acidificación intracelular en la captación de adenosina mediante los sistemas de transporte equilibrativos para nucleósidos. MSc Thesis in Biologycal Sciences. Universidad de Antofagasta, Chile. Tutor: MA Ramírez.


Arsenic trioxide-increased MDCK cells proliferation requires activator protein 1-mediated increase of the sodium/proton exchanger 1 activity Cornejo, Marcelo; Mieres-Castro, Daniel; Blanco, Elias H.; Beltran, Ana R.; Araya, Jorge E.; Fuentes, Gonzalo; Figueroa, Manuel; Labarca, Cristian; Toledo, Fernando; Ramirez, Marco A.; Sobrevia, Luis Article ISI BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR BASIS OF DISEASE (2021)
Baroreflex Modulation During Acute High-Altitude Exposure in Rats Beltran, Ana Rosa; Arce-Alvarez, Alexis; Ramirez-Campillo, Rodrigo; Vasquez-Munoz, Manuel; von Igel, Magdalena; Ramirez, Marco A.; del Rio, Rodrigo; Andrade, David C. Article ISI FRONTIERS IN PHYSIOLOGY (2020)
Involvement of Intracellular pH in Vascular Insulin Resistance Ramírez, Marco A.; Beltrán, Ana R.; Araya, Jorge E.; Cornejo, Marcelo; Toledo, Fernando; Fuentes, Gonzalo; Sobrevia, Luis Article ISI SCOPUS CURRENT VASCULAR PHARMACOLOGY (2019)
Intracellular acidification reduces L-arginine transport via system y(+)L but not via system y(+)/CATs and nitric oxide synthase activity in human umbilical vein endothelial cells Ramirez, MA; Morales, J; Cornejo, M; Blanco, EH; Mancilla-Sierpe, E; Toledo, F; Beltran, AR; Sobrevia, L Article ISI SCOPUS BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR BASIS OF DISEASE (2018)
Intracellular acidification increases adenosine transport in human umbilical vein endothelial cells Celis, Natalia; Araos, Joaquín; Sanhueza, Carlos; Toledo, Fernando; Beltrán, Ana R.; Pardo, Fabián; Leiva, Andrea; Ramírez, Marco A.; Sobrevia, Luis Article ISI SCOPUS PLACENTA (2017)
Sodium/proton exchanger isoform 1 regulates intracellular pH and cell proliferation in human ovarian cancer Sanhueza, C.; Araos, J.; Naranjo, L.; Toledo, F.; Beltran, A. R.; Ramirez, M. A.; Gutierrez, J.; Pardo, F.; Leiva, A.; Sobrevia, L Article ISI SCOPUS BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR BASIS OF DISEASE (2017)
Modulation of intracellular ph in human ovarian cancer Sanhueza C.; Araos, J; Naranjo, L.; Villalobos, R; Westermeier, F; Salomon, C; Beltrán A.R.; Ramirez, M. A.; Gutierrez J.; Pardo F.; Leiva A.; Sobrevia L. Article SCOPUS Current Molecular Medicine (2016)
Escherichia coli Heat-Stable Enterotoxin Mediates Na+/H+ Exchanger 4 Inhibition Involving cAMP in T-84 Human Intestinal Epithelial Cells Beltran, AR; Carraro-Lacroix, LR; Bezerra, CNA; Cornejo M.; Norambuena, K; Toledo, F.; Araos, J; Pardo F.; Leiva A.; Sanhueza C.; Malnic, G; Sobrevia L.; Ramirez, MA Article ISI SCOPUS PLOS ONE (2015)
Insulin restores L-arginine transport requiring adenosine receptors activation in umbilical vein endothelium from late-onset preeclampsia Salsoso, R; Guzman-Gutierrez, E; Sáez T.; Bugueno, K; Ramirez, M. A.; Farias M.; Pardo F.; Leiva A.; Sanhueza C.; Mate, A; Vazquez, C.; Sobrevia L. Article ISI SCOPUS PLACENTA (2015)
Potential Role of Sodium-Proton Exchangers in the Low Concentration Arsenic Trioxide-Increased Intracellular pH and Cell Proliferation Aravena, C; Beltrán A.R.; Cornejo M.; Torres V.; Diaz E.S.; Guzman-Gutierrez, E; Pardo F.; Leiva A.; Sobrevia L.; Ramirez, M. A. Article ISI SCOPUS PLOS ONE (2012)
Functional Link Between Adenosine and Insulin: A Hypothesis for Fetoplacental Vascular Endothelial Dysfunction in Gestational Diabetes Guzman-Gutierrez, E; Abarzua, F; Belmar C.; Nien JK; Ramirez, MA; Arroyo, P; Salomon, C; Westermeier, F; Puebla, C; Leiva A.; Casanello, P; Sobrevia L. Article ISI SCOPUS CURRENT VASCULAR PHARMACOLOGY (2011)
The Laminin-Induced Acrosome Reaction in Human Sperm Is Mediated by Src Kinases and the Proteasome Tapia, S; Rojas M.; Morales P.; Ramirez, MA; Diaz, ES Article ISI SCOPUS Biology of Reproduction (2011)
NHE1, NHE2, and NHE4 contribute to regulation of cell pH in T84 colon cancer cells Beltran, AR; Ramirez, MA; Carraro-Lacroix, LR; Hiraki, Y; Reboucas, NA; Malnic, G Article ISI SCOPUS PFLUGERS ARCHIV-EUROPEAN JOURNAL OF PHYSIOLOGY (2008)
Increased NHE1 expression is associated with serum deprivation-induced differentiation in immortalized rat proximal tubule cells Carraro-Lacroix, LR; Ramirez, MA; Zorn, TMT; Reboucas, NA; Malnic, G Article ISI SCOPUS AMERICAN JOURNAL OF PHYSIOLOGY-RENAL PHYSIOLOGY (2006)
Factors affecting ammonium uptake by C11 clone of MDCK cells Tararthuch, AL; Fernandez, R; Ramirez, MA; Malnic, G Article ISI PFLUGERS ARCHIV-EUROPEAN JOURNAL OF PHYSIOLOGY (2002)
Spontaneous water secretion in T84 cells: effects of STa enterotoxin, bumetanide, VIP, forskolin, and A-23187 Toriano, R; Kierbel, A; Ramirez, MA; Malnic, G; Parisi, M Article ISI AMERICAN JOURNAL OF PHYSIOLOGY-GASTROINTESTINAL AND LIVER PHYSIOLOGY (2001)
Control of cell pH in the T84 colon cell line Ramirez, MA; Toriano, R; Parisi, M; Malnic, G Article ISI JOURNAL OF MEMBRANE BIOLOGY (2000)
Permeation of NH3/NH4+ and cell pH in colonic crypts of the rat M. Ramirez, R.Fernandez, G. Malnic Article PFLUGERS ARCHIV-EUROPEAN JOURNAL OF PHYSIOLOGY (1999)
Hypoxanthine uptake at the fetal side of human placenta proceeds through a nucleobase-preferring carrier and a non-saturable process Ramirez, M; Acevedo, CG; Rojas, S; Bravo, I Article ISI PLACENTA (1997)
TRANSPORT AND METABOLISM OF ADENOSINE IN THE PERFUSED HUMAN PLACENTA ACEVEDO, CG; ROJAS, S; RAMIREZ, M; BRAVO, I Article ISI PLACENTA (1995)


THE INTRACELLULAR PH IN HUMAN UMBILICAL VEIN ENDOTHELIAL CELLS FROM GESTATIONAL DIABESITY IS UNALTERED BY INSULIN Fuentes, G; Valero, P; Cornejo, M; Paublo, M; Lopez, MA; Ramirez, MA; Sobrevia, L Abstract ISI PLACENTA (2019)
Stimulation of Na+/H+ exchanger activity ina colon cell line by arsenic trioxide Ramirez, MA; Beltran, AR; Flores M.; Malnic, G Abstract ISI PLACENTA (2006)


Fetoplacental Vascular Endothelial Dysfunction as an Early Phenomenon in the Programming of Human Adult Diseases in Subjects Born from Gestational Diabetes Mellitus or Obesity in Pregnancy Leiva A.; Pardo F.; Ramirez, MA; Farias M.; Casanello, P; Sobrevia L. Review ISI SCOPUS Experimental Diabetes Research (2011)