Browsing by Author "Espinoza, Alejandra"

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Artículo

Exploratory study: excessive iron supplementation reduces zinc content in pork without affecting iron and copper

Middleton Santibáñez, Maureen; Olivares Grohnert, Manuel Alonso; Espinoza, Alejandra; Arredondo Olguín, Miguel Armando; Pizarro Aguirre, Fernando Dagoberto; Valenzuela Venegas, Carolina Paz (MDPI, 2021)

Currently, all pigs raised on intensive farms develop iron-deficiency anemia if they do not receive supplemental iron at birth. Weaning diets commonly contain high concentrations of iron, and the effect on the copper and ...
Artículo

Iron, copper, and zinc transport: Inhibition of divalent metal transporter 1 (DMT1) and human copper ...

Espinoza, Alejandra; Le Blanc, Solange; Olivares, Manuel; Pizarro Aguirre, Fernando; Ruz, Manuel; Arredondo, Miguel (2012)

Iron (Fe), copper (Cu), and zinc (Zn) fulfill various essential biological functions and are vital for all living organisms. They play important roles in oxygen transport, cell growth and differentiation, neurotransmitter ...
Artículo

Pharmacokinetics of a single oral dose of 1.5-mg levonorgestrel when administered as 750-μg tablets or as ...

Devoto, Luigi; Espinoza, Alejandra; Ferrada Muñoz, Alex Eduardo; Fuentes, Ariel; von Hertzen, Helena (2007)

We examined the pharmacokinetics of a single dose of 1.5 mg of levonorgestrel when administered orally in two different formulations: two tablets of 0.75 mg or 50 minipills of 30 μg of levonorgestrel. Bioavailability of ...
Artículo

Searching for specific responses to copper exposure: An in vitro copper challenge in peripheral mononuclear cells

Arredondo, Miguel; Espinoza, Alejandra; Pizarro Aguirre, Fernando; Araya, Magdalena (2011)

Acute and chronic cellular responses to changes in copper availability are not clear when these changes are mild to moderate, as what often occur in human daily life. The aims of the study were to develop an in vitro copper ...