Andrea A. Villagran

Santiago, RM, Chile

Last Updated: 09/26/2026

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Found 12 publications

Letter: childhood recurrent abdominal pain is associated with increased duodenal eosinophilia independent of Helicobacter pylori infection.

Letter: childhood recurrent abdominal pain is associated with increased duodenal eosinophilia independent of Helicobacter pylori infection.

Journal: Alimentary pharmacology & therapeutics

Published: May 03, 2023

Normal values of eosinophils in gastric and duodenal mucosa of children referred to upper gastrointestinal endoscopy

Normal values of eosinophils in gastric and duodenal mucosa of children referred to upper gastrointestinal endoscopy

Journal: Andes pediatrica : revista Chilena de pediatria

Published: September 25, 2020

Maternal H. pylori is associated with differential fecal microbiota in infants born by vaginal delivery.

Maternal H. pylori is associated with differential fecal microbiota in infants born by vaginal delivery.

Journal: Scientific reports

Published: November 07, 2019

Portal Angiogenesis in Chronic Liver Disease Patients Correlates with Portal Pressure and Collateral Formation.

Portal Angiogenesis in Chronic Liver Disease Patients Correlates with Portal Pressure and Collateral Formation.

Journal: Digestive diseases (Basel, Switzerland)

Published: December 21, 2018

Concordance between Lactose Quick Test, hydrogen-methane breath test and genotyping for the diagnosis of lactose malabsorption in children.

Concordance between Lactose Quick Test, hydrogen-methane breath test and genotyping for the diagnosis of lactose malabsorption in children.

Journal: Neurogastroenterology and motility

Published: July 31, 2017

Functional gastrointestinal disorders in children from low socio-economic status and Helicobacter pylori infection.

Functional gastrointestinal disorders in children from low socio-economic status and Helicobacter pylori infection.

Journal: Child: care, health and development

Published: August 17, 2016

Maternal infection due to Helicobacter pylori does not increase the risk of the infection in the first trimester of the life of their infants

Maternal infection due to Helicobacter pylori does not increase the risk of the infection in the first trimester of the life of their infants

Journal: Revista chilena de pediatria

Published: April 10, 2016

Iron Deficiency and IL1β Polymorphisms in Helicobacter pylori-infected Children.

Iron Deficiency and IL1β Polymorphisms in Helicobacter pylori-infected Children.

Journal: Helicobacter

Published: July 28, 2015

Peptic ulcer disease in Helicobacter pylori-infected children: clinical findings and mucosal immune response.

Peptic ulcer disease in Helicobacter pylori-infected children: clinical findings and mucosal immune response.

Journal: Journal of pediatric gastroenterology and nutrition

Published: July 23, 2014

Iron status and Helicobacter pylori infection in symptomatic children: an international multi-centered study.

Iron status and Helicobacter pylori infection in symptomatic children: an international multi-centered study.

Journal: PloS one

Published: April 30, 2013

Helicobacter pylori-associated hypochlorhydria in children, and development of iron deficiency.

Helicobacter pylori-associated hypochlorhydria in children, and development of iron deficiency.

Journal: Journal of clinical pathology

Published: December 27, 2012

Frequency of Helicobacter pylori infection in 144 school age Chilean children

Frequency of Helicobacter pylori infection in 144 school age Chilean children

Journal: Revista medica de Chile

Published: October 22, 2012

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Last Updated: 09/26/2026