- Microbiología de la relación Patógeno-Hospedero - Microbiota Intestinal, Probióticos y Prebióticos - Helicobacter pylori como factor de riesgo para desarrollo de cáncer gástrico

GRADUATE THESIS CO-SUPERVISION

2019
Karen Rodas Pasmiño – MSc Biotechnology University of Barcelona Validation of miRNAs in dendritic cells stimulated with OMVs from commensal and probiotic strains. Co-supervisor.
2020
Marta Riera Castro – MSc Advanced Microbiology University of Barcelona Protective effects of membrane vesicles from probiotics and intestinal microbiota against rotavirus infection in intestinal epithelial cell models. Co-supervisor.
2023
Zoe Kampff – PhD Microbiology University College Cork Effect of Streptococcus thermophilus variants on industrial phages. Co-supervision/mentoring reported in curricular record.

UNDERGRADUATE THESIS SUPERVISION

2026
Students: Camila Espina, Laura Garrido, Constanza Aguilar & Francisca Adasme
Thesis: Effects of the probiotic Akkermansia muciniphila on the metabolism of individuals with obesity.
Program / Institution: Nutrition and Dietetics Program, Universidad Católica del Maule, Chile.

2017
Students: María José Nuñez & Rodrigo Umaña
Thesis: Effect of different saliva dilutions on a biological caries model with Streptococcus mutans biofilms.
Program / Institution: Dentistry Program, Universidad de Talca, Chile.

2016
Students: María Jesús Valenzuela & Herman Vera
Thesis: Anti-caries effect of linoleic fatty acid on the competition between Streptococcus mutans and Streptococcus sanguinis in a dual-species biofilm caries model.
Program / Institution: Dentistry Program, Universidad de Talca, Chile.

2016
Students: Carla Gonzalez & Ángela Alarcón
Thesis: Anti-caries effect of ovalbumin on a dual-species biofilm of Streptococcus mutans and Streptococcus sanguinis.
Program / Institution: Dentistry Program, Universidad de Talca, Chile.

2015
Students: Miguel Ángel Muller
Thesis: Effect of the consumption of powdered juice, nectar and pulp concentrate in an in vitro experimental caries model.
Program / Institution: Dentistry Program, Universidad de Talca, Chile.

2015
Students: Constanza Echeverria
Thesis: Anti-caries effect of unsaturated fatty acids on a dual-species biofilm of Streptococcus mutans and Streptococcus sanguinis.
Program / Institution: Dentistry Program, Universidad de Talca, Chile.

2014
Students: Vanesa Pailahual
Thesis: Cariogenicity of commercial carbonated beverages in an experimental biofilm caries model.
Program / Institution: Dentistry Program, Universidad de Talca, Chile.

2014
Students: Felipe Bustamante
Thesis: Evaluation of the anticariogenic potential of ovalbumin with sucrose in an in vitro experimental caries-biofilm model on enamel and dentin.
Program / Institution: Dentistry Program, Universidad de Talca, Chile.

ORAL COMMUNICATIONS AND INVITED TALKS

2025 ¿Que? sabemos de postbio?ticos? Hablemos de vesículas extracelulares derivadas de microbiota.
Natalia Díaz-Garrido.
Invited Talk. September 25, 2025; Chile. Sociedad de Microbiología de Chile.

2024 Workshop Microbiota and the Immune System UANDES
Díaz-Garrido N, Badía J, Baldomá L.
Oral Communication. April 18, 2024; online. International Workshop.

2023 Intestinal Microbiota and postbiotics: What we already know and what we must know?
Natalia Díaz-Garrido.
Invited Talk. April 13, 2023; Chile. Biomedicine School, Universidad Bernardo O’Higgins.

2023 Discovering the gut microbiota world
Natalia Díaz-Garrido.
Oral Communication. October 2, 2023; Chile. Special Talk, Biomedicine Day, Universidad San Sebastián.

2022 Extracellular vesicles as communicators in the gut
Natalia Díaz-Garrido.
Invited Talk. January 19–20, 2022; Chile. Summer School of Microbiome 2022.

2021 Interplay between dendritic and T cells in response to membrane vesicles from gut beneficial microbes
Díaz-Garrido N, Badía J, Baldomá L.
Oral Communication. July 14–21, 2021; online. XII ISIN Conference Immunonutrition.

2019 Extracellular vesicles released by gut microbiota modulate host immune responses through specific activation of dendritic cells
Natalia Díaz-Garrido, María-José Fábrega, Rodrigo Vera, Marta Riera, Rosa Giménez, Josefa Badia, Laura Baldomá.
Oral Communication. November 29, 2019; Barcelona, Spain. II Microbiology Conference, Catalan Biology Society.

2019 Effect of microbiota membrane vesicles on human dendritic cells activation and derived T-cell effector responses
Natalia Díaz-Garrido, María José Fábrega, Marta Riera, Rodrigo Vera, Rosa Giménez, Josefa Badia, Laura Baldomá.
Oral Communication — Best Oral Communication. February 6–8, 2019; Las Palmas de Gran Canaria, Spain. X Workshop Spanish Society of Probiotics and Prebiotics (SEPYP).

2016 Competition and Caries on Enamel of a Dual-species Biofilm Model of Streptococcus mutans and Streptococcus sanguinis
Natalia Díaz-Garrido, Carla Lozano, Jens Kreth, Rodrigo Giacaman.
Oral Communication. November 22–26, 2016; Valdivia, Chile. XXXVIII Chilean Congress of Microbiology (SOMICH).

2016 Older adults Caries: Beyond medical record to Microbiology
Natalia Díaz-Garrido, Ramiro Castro, Soraya León, Daniel Bravo, Rodrigo Giacaman.
Oral Communication. November 3–4, 2016; Talca, Chile. IV International Conference Interdisciplinary Excellence Research Program on Healthy Aging (PIEI-ES), Universidad de Talca.

POSTER PRESENTATIONS

2026 Diálogo inmunológico entre células dendríticas y linfocitos T mediado por vesículas de membrana de microorganismos beneficiosos de la microbiota intestinal
Díaz-Garrido N, Badía J, Baldomá L.
Simposio Internacional de Microbiota & Probióticos. September 11-12, 2026; Buenos Aires, Argentina. International Congress.

2024 Effect of lactose in RGP and EPS receptors in streptococcal phages interactions
Díaz-Garrido N, Van Sinderen D, Mahony J.
ISAPP Conference. July 9–11, 2024; Cork, Ireland. International Congress.

2023 Effect of divalent cations and carbohydrate concentration on phage-host interaction of dairy streptococci
Díaz-Garrido N, Joos R, Cantwell R, Van Sinderen D, Mahony J.
14th LAB Symposium. August 27–31, 2023; Netherlands. International Congress.

2020 miRNAs regulation in human dendritic cells by extracellular membrane vesicles from microbiota
Natalia Díaz-Garrido, Marta Riera, Rosa Giménez, Josefa Badia, Laura Baldomá.
XI Workshop Spanish Society of Probiotics and Prebiotics (SEPYP). Granada, Spain.

2019 Membrane vesicles from the probiotic Nissle 1917 and gut resident Escherichia coli strains distinctly modulate human dendritic cells and subsequent T cell responses
Natalia Díaz-Garrido, María José Fábrega, Marta Riera, Rodrigo Vera, Rosa Giménez, Josefa Badia, Laura Baldomá.
XX Research Conference, University of Barcelona, Barcelona, Spain. Best Poster.

2017 Lactobacillus salivarius LPM01 (DSM 22150) reduces inflammation in cellular models of intestinal epithelium
Rodrigo Vera, Natalia Díaz-Garrido, Rosa Giménez, Josefa Badia, Laura Baldomá.
X Workshop Spanish Society of Probiotics and Prebiotics (SEPYP). Las Palmas de Gran Canaria, Spain.

2016 Outer membrane vesicles and soluble factors secreted by probiotic and commensal E. coli strains: effect on Salmonella enterica serovar Typhimurium
María José Fábrega, María Alexandra Cañas, Natalia Díaz-Garrido, Rosa Giménez, Josefa Badia, Laura Baldomá.
IX Workshop Spanish Society of Probiotics and Prebiotics (SEPYP). Zaragoza, Spain.

2016 Anticariogenic potential of combination of fatty acids with sucrose in caries-biofilm in vitro model
Natalia Díaz-Garrido, Constanza Echeverría, Rodrigo Giacaman.
XII Research and Postgraduate Conference, Universidad de Talca, Chile.

2016 Dynamics of colonization of enamel in a caries-biofilm model of S. mutans and S. sanguinis
Natalia Díaz-Garrido, Jens Kreth, Rodrigo Giacaman.
XXIII Latin American Congress of Microbiology. September 26–30, 2016; Rosario, Argentina.

2016 Anticariogenic activity of unsaturated fatty acids in a dual caries-biofilm model
Constanza Echeverría, Natalia Díaz-Garrido, Rodrigo Giacaman.
International Association for Dental Research (IADR)-Chile. Santiago, Chile.

2016 Cariogenic potential of carbonated beverages
Vanessa Pailahual, Natalia Díaz-Garrido, Rodrigo Giacaman.
94th General Session & Exhibition of the IADR. Seoul, Korea.

2016 Enamel colonization and caries in a dual-species biofilm model of Streptococcus mutans and Streptococcus sanguinis
Natalia Díaz-Garrido, Jens Kreth, Rodrigo Giacaman.
European Organization for Caries Research (ORCA). Athens, Greece.

2015 Relationship between green tea and caries: A literature review
Manuel Contreras, Natalia Díaz-Garrido.
IV Geriatrics Dentistry Conference, Universidad de Talca. Santiago, Chile.

2015 Initial colonization effects of S. sanguinis on characteristic and properties of dental biofilm
Natalia Díaz-Garrido, Carla Lozano, Jens Kreth, Rodrigo Giacaman.
XXXVII Chilean Congress of Microbiology (SOMICH). La Serena, Chile.

2015 Initial colonization of S. sanguinis in caries-biofilm in vitro model
Natalia Díaz-Garrido, Carla Lozano, Jens Kreth, Rodrigo Giacaman.
II International Cariology Conference. Santiago, Chile.

2015 Effects of consumption of powdered, concentrated and nectar juice on in vitro experimental caries model
Vanessa Pailahual, Miguel Miller, Natalia Díaz-Garrido, Rodrigo Giacaman.
II International Cariology Conference. Santiago, Chile.

2014 Anticariogenic potential of Ovoalbumin with sucrose in experimental caries-biofilm model
Felipe Bustamante, Natalia Díaz-Garrido, Rodrigo Giacaman.
II International Cariology Conference. Santiago, Chile.

2014 Cariogenic potential of carbonated beverages
Vanessa Pailahual, Natalia Díaz-Garrido, Rodrigo Giacaman.
International Association for Dental Research (IADR)-Chile. Santiago, Chile.

2014 Frequency of sucrose exposure on the cariogenicity of a biofilm-caries model
Natalia Díaz-Garrido, Rodrigo Giacaman.
International Association for Dental Research (IADR)-Chile. Santiago, Chile.