2026 Outi Vaarala: Immunology Researcher – H-Index, Publications & Awards

Discipline name	D-Index	World Ranking	Current World Ranking	National Ranking	Current National Ranking	Publications	Citations
Immunology	82	1513	1378	10	10	345	22758
Medicine	82	16214	15253	187	174	347	22764

Overview

Outi Vaarala is affiliated with the University of Helsinki in Finland. Their research spans multiple disciplines within medicine and biochemistry, genetics, and molecular biology, with a strong focus on diabetes and related disorders.

The primary fields of study for Vaarala include:

Medicine
Biochemistry, Genetics and Molecular Biology

They have contributed extensively to subfields such as genetics, immunology, pulmonary and respiratory medicine, nutrition and dietetics, and epidemiology.

Topics central to their research involve:

Diabetes and associated disorders
Infant Nutrition and Health
Immune Cell Function and Interaction
T-cell and B-cell Immunology
Digestive system and related health
Sleep and Wakefulness Research
Breastfeeding Practices and Influences

Vaarala has published numerous papers, with recent examples including:

Fungal Dysbiosis and Intestinal Inflammation in Children With Beta-Cell Autoimmunity (2020, Frontiers in Immunology)
Enhanced influenza A H1N1 T cell epitope recognition and cross-reactivity to protein-O-mannosyltransferase 1 in Pandemrix-associated narcolepsy type 1 (2021, Nature Communications)
Serum 25-hydroxyvitamin D concentration in childhood and risk of islet autoimmunity and type 1 diabetes: the TRIGR nested case-control ancillary study (2020, Diabetologia)
Ultrasensitive DNA Immune Repertoire Sequencing Using Unique Molecular Identifiers (2020, Clinical Chemistry)
Elevated serum chemokine CCL22 levels in first-episode psychosis: associations with symptoms, peripheral immune state and in vivo brain glial cell function (2020, Translational Psychiatry)

The frequent venues where Vaarala's work has appeared include:

Frontiers in Immunology
Diabetologia
Clinical Chemistry
Nature Communications
PLoS ONE

The scientist has collaborated regularly with a number of coauthors, notably:

Mikael Knip
Jarno Honkanen
Maija E. Miettinen
Sari Niinistö
Jorma Ilonen

Best Publications

The Dynamics of the Human Infant Gut Microbiome in Development and in Progression toward Type 1 Diabetes

Aleksandar D. Kostic;Aleksandar D. Kostic;Dirk Gevers;Heli Siljander;Tommi Vatanen;Tommi Vatanen

1296
Citations
Environmental Triggers and Determinants of Type 1 Diabetes

Mikael Knip;Riitta Veijola;Suvi M. Virtanen;Heikki Hyöty

734
Citations
The “Perfect Storm” for Type 1 Diabetes: The Complex Interplay Between Intestinal Microbiota, Gut Permeability, and Mucosal Immunity

Outi Vaarala;Mark A. Atkinson;Josef Neu

645
Citations
Fecal Microbiota Composition Differs Between Children With β-Cell Autoimmunity and Those Without

Marcus C. de Goffau;Kristiina Luopajärvi;Mikael Knip;Jorma Ilonen;Jorma Ilonen

642
Citations
GAD treatment and insulin secretion in recent-onset type 1 diabetes

Johnny Ludvigsson;Maria Faresjö;Maria Hjorth;Stina Axelsson

625
Citations
AS03 Adjuvanted AH1N1 Vaccine Associated with an Abrupt Increase in the Incidence of Childhood Narcolepsy in Finland

Hanna Nohynek;Jukka Jokinen;Markku Partinen;Outi Vaarala

579
Citations
Environmental factors in the etiology of type 1 diabetes

Hans K. Åkerblom;Outi Vaarala;Heikki Hyöty;Jorma Ilonen

500
Citations
Crossreaction between antibodies to oxidised low-density lipoprotein and to cardiolipin in systemic lupus erythematosus

O. Vaarala;K. Aho;T. Palosuo;G. Alfthan

478
Citations
Lactobacillus GG effect in increasing IFN-gamma production in infants with cow's milk allergy.

Emma Pohjavuori;Mirva Viljanen;Riitta Korpela;Mikael Kuitunen

466
Citations
Anti-Cardiolipin Antibodies and Risk of Myocardial Infarction in a Prospective Cohort of Middle-Aged Men

Outi Vaarala;Matti Mänttäri;Vesa Manninen;Leena Tenkanen

452
Citations
IL-17 Immunity in Human Type 1 Diabetes

Jarno Honkanen;Janne K. Nieminen;Ru Gao;Kristiina Luopajarvi

377
Citations
Dietary intervention in infancy and later signs of beta-cell autoimmunity.

Mikael Knip;Suvi M. Virtanen;Karri Seppä;Jorma Ilonen

367
Citations
Antibody Against Oxidized Low-Density Lipoprotein Predicting Myocardial Infarction

Marja Puurunen;Matti Mänttäri;Vesa Manninen;Leena Tenkanen

357
Citations
Anticardiolipin response in acute infections.

Outi Vaarala;Timo Palosuo;Marjaana Kleemola;Kimmo Aho

319
Citations
Narcolepsy as an autoimmune disease: the role of H1N1 infection and vaccination.

Markku Partinen;Birgitte Rahbek Kornum;Giuseppe Plazzi;Poul Jennum

313
Citations
Antibodies to influenza nucleoprotein cross-react with human hypocretin receptor 2

Syed Sohail Ahmed;Wayne Volkmuth;José Duca;Lorenzo Corti

298
Citations
A TLR4 polymorphism is associated with asthma and reduced lipopolysaccharide-induced interleukin-12(p70) responses in Swedish children

Malin Fagerås Böttcher;Mounira Hmani-Aifa;Anna Lindström;Maria Christina Jenmalm

294
Citations
Cow's milk formula feeding induces primary immunization to insulin in infants at genetic risk for type 1 diabetes.

Outi Vaarala;Mikael Knip;Johanna Paronen;Anu-Maaria Hämäläinen

270
Citations
IL‐23/IL‐17 immunity as a hallmark of Crohn's disease

Veera Hölttä;Paula Klemetti;Taina Sipponen;Mia Westerholm-Ormio

263
Citations
Patterns of β-cell autoantibody appearance and genetic associations during the first years of life.

Jorma Ilonen;Anna Hammais;Antti-Pekka Laine;Johanna Lempainen;Johanna Lempainen

246
Citations
Dynamic association of human insulin receptor with lipid rafts in cells lacking caveolae

Saara Vainio;Sanna Heino;Jan-Eric Månsson;Pam Fredman

241
Citations

Frequent Co-Authors

Jorma Ilonen University of Turku

Mikael Knip University of Helsinki

Suvi M. Virtanen Tampere University

Johnny Ludvigsson Linköping University

Erkki Savilahti University of Helsinki

Hans K. Åkerblom University of Helsinki

Juha Pekkanen University at Buffalo, State University of New York

Ilkka Julkunen University of Turku

Heikki Hyöty Tampere University

Markku Partinen University of Helsinki

External Links

Personal website of Outi Vaarala

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