Systems biology in controlled dietary intervention studies
Our primary research focus is investigating the effect of diets and dietary components in particular fatty acids on cardiometabolic phenotypes.
About the group
The group wants to get a comprehensive understanding of the role of diet and dietary fat on biological processes in humans by integrating large scale datasets from controlled dietary intervention studies.
The group uses randomized controlled postprandial and short and long term dietary intervention studies and applies large scale datasets, such as whole genome transcriptome (in peripheral blood mononuclear cells [PBMCs]) and plasma and urine metabolome, to investigate the physiological and molecular mechanisms of diet and in particular fat quality on cardiometabolic risk markers.
Our goal is to obtain knowledge that can be used for future dietary guidelines, which may be more tailor made for specific subgroups or individuals (personalized nutrition) to prevent lifestyle diseases.
- Marine omega-3 fatty acids and health - use of systems biology in controlled dietary intervention studies (financed by Research Council of Norway). Aim of integrating large scale data sets (transcriptomics and lipidomics) to understand the underlying mechanisms of the health beneficial effects of fish oil on healthy individuals.
- Effects of fat quality on blood lipids and immune response. Aim of understanding the underlying mechanisms of the health beneficial effects of replacing saturated fat with polyunsaturated fat from plant oils on lipids and inflammatory markers, both in circulation and in PBMCs in healthy subjects with moderate hypercholesterolemia.
- Health effects of Nordic diet (SYSDIET) (financed by Nordforsk). Aim of understanding the underlying mechanisms of the health beneficial effects of the Nordic diet based on the Nordic Nutrition Recommendations on glucose tolerance, lipids and inflammatory markers, both in circulation and PBMCs in subject with metabolic syndrome.
- Health effects of krill oil, lean and fatty fish. Aim of understanding the underlying mechanisms of the health beneficial effects of long chain omega-3 fatty acids from either krill oil or lean and fatty fish in healthy subjects with moderate hypertriglyceridemia.
- Postprandial effects of existing and new innovative dairy products (financed by Research Council of Norway). Aim of understanding the underlying mechanisms of fat intake from different sources of dairy products on lipids, inflammation and satiety in circulation and PBMCs in healthy lean and overweight subjects.
- NordFOOD, a Nordic training network (financed by Nordplus Horizontal)
- Prevent chronic diseases in the population by providing evidence based knowledge of the role of diet and fat quality on cardiometabolic health.
- Increase the understanding of how fat quality influences metabolic pathways and homeostasis, by studying how fat intake regulates the transcriptome and metabolome and how this regulation is disturbed in cardiometabolic diseases.
- Apply integrated large-scale data (transcriptomics and metabolomics) and cardiometabolic risk markers from postprandial and long term controlled dietary intervention studies and make molecular profiles.
- Establish molecular profiles that are regulated by fatty acids and may lead to different fat intake guidelines among different age groups and at the individual level.
- Apply both prospective and retrospective SNP genotyping and advanced sequencing technology to understand to what extent individual genotypes contribute to the dietary response.
The most important synergy is to apply omics-based technologies (chemistry, genetics and molecular biology) and data integration (bioinformatics), in controlled dietary intervention studies in order to prevent cardiometabolic disorders (clinical nutrition and medicine). This will give us the possibility to analyze simultaneously thousands of molecules and parameters from controlled dietary intervention studies. These results will give us a deeper understanding of dynamic changes in molecular components and biological pathways across health and disease in groups of individuals, and even within an individual.
The group collaborates with internal research groups at the Department of Nutrition and external partners.
The most important collaborators are:
Professor Kirsten B. Holven in the field of clinical nutrition, diet, atherosclerosis, cardiovascular disease and dietary intervention studies at Department of Nutrition, UiO, and Professor Lene F. Andersen in the field of nutrition epidemiology, Department of Nutrition, UiO.
The group is partner of a Nordic Center of Excellence in food, nutrition and health called Systems biology in controlled dietary interventions and cohort studies (SYSDIET) and collaborate in particular with Professor Carsten Carlberg, dr. Marjukka Kolehmainen, dr. Jussi Paananen and dr. Vanessa de Mello at the University of Eastern Finland, and Professor Lars O Dragsted at the University of Copenhagen, dr. Ingrid Dahlman at Karolinska Institute in the field of clinical nutrition, dietary intervention studies, medicine, chemistry, molecular biology and bioinformatics.
In bioinformatics and statistics, the group collaborate with Professor Magne Thoresen at UiO, Professor Achim Kohler at NMBU, dr. Larry Parnell at Tuft University, Boston, dr. Einar Ryeng at NTNU and dr. Ole Kristoffer Olstad at OUS.
Ulven SM, Leder L, Elind E, Ottestad I, Christensen JJ, Telle-Hansen VH, Skjetne AJ, Raael E, Sheikh NA, Holck M, Torvik K, Lamglait A, Thyholt K, Byfuglien MG, Granlund L, Andersen LF, Holven KB. Exchanging a few commercial, regularly consumed food items with improved fat quality reduces total cholesterol and LDL-cholesterol: a double-blind, randomised controlled trial. Br J Nutr. 2016 Oct;116(8):1383-1393.
Myhrstad MC, Ottestad I, Günther CC, Ryeng E, Holden M, Nilsson A, Brønner KW, Kohler A, Borge GI, Holven KB, Ulven SM. The PBMC transcriptome profile after intake of oxidized versus high-quality fish oil: an explorative study in healthy subjects. Genes Nutr. 2016 May 31;11:16.
Ottestad I, Løvstad AT, Gjevestad GO, Hamarsland H, Benth JA, Andersen LF, Bye A, Biong AS, Retterstøl K, Iversen PO, Raastad T, Ulven SM, Holven KB. Intake of a protein-enriched milk and effects on muscle mass and strength. A 12-week randomized placebo controlled trial among community-dwelling older adults. In press J Nutrition, health and Aging 2016.
Ottestad I, Nordvi B, Vogt G, Holck M, Halvorsen B, Brønner KW, Retterstøl K, Holven KB, Nilsson A, Ulven SM. Bioavailability of n-3 fatty acids from n-3-enriched foods and fish oil with different oxidative quality in healthy human subjects: a randomized single-meal cross-over study. In press. J Nutr Sci., 2016
Leder L, Kolehmainen M, Narverud I, Dahlman I, Myhrstad MCW, de Mello V, Paananen P, Carlberg C, Schwab U, Herzig KH, Cloetens L, Storm MU, Jhukkanen J, Savolainen MJ, Rosqvist F, Hermansen K, Dragsted LO, Gunnarsdottir I, Thorsdottir I, Risérus U, Åkesson B, Thoresen M, Arner P, Poutanen KS, Uusitupa M, Holven KB, Ulven SM. Effects of a healthy Nordic diet on gene expression changes in peripheral blood mononuclear cells in response to an oral glucose tolerance test in subjects with metabolic syndrome: a SYSDIET sub-study. Genes Nutr. 2016 Mar 17;11:3.
Ulven SM, Foss SS, Skjølsvik AM, Stadheim HK, Myhrstad MC, Raael E, Sandvik M, Narverud I, Andersen LF, Jensen J, Holven KB. An acute bout of exercise modulates the inflammatory response in peripheral blood mononuclear cells in healthy young men. Arch Physiol Biochem. 2015 May;121(2):41-9.
Kolehmainen M, Ulven SM, Paananen J, de Mello V, Schwab U, Carlberg C, Myhrstad M, Pihlajamäki J, Dungner E, Sjölin E, Gunnarsdottir I, Cloetens L, Landin-Olsson M, Akesson B, Rosqvist F, Hukkanen J, Herzig KH, Dragsted LO, Savolainen MJ, Brader L, Hermansen K, Risérus U, Thorsdottir I, Poutanen KS, Uusitupa M, Arner P, Dahlman I. Healthy Nordic diet downregulates the expression of genes involved in inflammation in subcutaneous adipose tissue in individuals with features of the metabolic syndrome. Am J Clin Nutr. 2015 Jan;101(1):228-39. doi: 10.3945/ajcn.114.092783. Epub 2014 Nov 19.
Ulven SM, Myhrstad MC, Holven KB. Marine n-3 Fatty Acids and Gene Expression in Peripheral Blood Mononuclear Cells. Curr Cardiovasc Risk Rep. 2014;8(11):412. Review.
Myhrstad MC, Ulven SM, Günther CC, Ottestad I, Holden M, Ryeng E, Borge GI, Kohler A, Brønner KW, Thoresen M, Holven KB. Fish oil supplementation induces expression of genes related to cell cycle, endoplasmic reticulum stress and apoptosis in peripheral blood mononuclear cells: a transcriptomic approach. J Intern Med. 2014 Nov;276(5):498-511.
Uusitupa M, Hermansen K, Savolainen MJ, Schwab U, Kolehmainen M, Brader L, Mortensen LS, Cloetens L, Johansson-Persson A, Onning G, Landin-Olsson M, Herzig KH, Hukkanen J, Rosqvist F, Iggman D, Paananen J, Pulkki KJ, Siloaho M, Dragsted L, Barri T, Overvad K, Bach Knudsen KE, Hedemann MS, Arner P, Dahlman I, Borge GI, Baardseth P, Ulven SM, Gunnarsdottir I, Jónsdóttir S, Thorsdottir I, Orešič M, Poutanen KS, Risérus U, Akesson B. Effects of an isocaloric healthy Nordic diet on insulin sensitivity, lipid profile and inflammation markers in metabolic syndrome -- a randomized study (SYSDIET). J Intern Med. 2013 Jul;274(1):52-66.
Ottestad I, Hassani S, Borge GI, Kohler A, Vogt G, Hyötyläinen T, Orešič M, Brønner KW, Holven KB, Ulven SM, Myhrstad MC. Fish oil supplementation alters the plasma lipidomic profile and increases long-chain PUFAs of phospholipids and triglycerides in healthy subjects. PLoS One. 2012;7(8):e42550.
Ottestad I, Vogt G, Retterstøl K, Myhrstad MC, Haugen JE, Nilsson A, Ravn-Haren G, Nordvi B, Brønner KW, Andersen LF, Holven KB, Ulven SM. Oxidised fish oil does not influence established markers of oxidative stress in healthy human subjects: a randomised controlled trial. Br J Nutr. 2012 Jul;108(2):315-26.
Kirkhus B, Lamglait A, Eilertsen KE, Falch E, Haider T, Vik H, Hoem N, Hagve TA, Basu S, Olsen E, Seljeflot I, Nyberg L, Elind E, Ulven SM. Effects of similar intakes of marine n-3 fatty acids from enriched food products and fish oil on cardiovascular risk markers in healthy human subjects. Br J Nutr. 2012 May;107(9):1339-49.
Myhrstad MC, Narverud I, Telle-Hansen VH, Karhu T, Lund DB, Herzig KH, Makinen M, Halvorsen B, Retterstøl K, Kirkhus B, Granlund L, Holven KB, Ulven SM. Effect of the fat composition of a single high-fat meal on inflammatory markers in healthy young women. Br J Nutr. 2011 Dec;106(12):1826-35.
- Ulven SM, Kirkhus B, Lamglait A, Basu S, Elind E, Haider T, Berge K, Vik H, Pedersen JI. Metabolic effects of krill oil are essentially similar to those of fish oil but at lower dose of EPA and DHA, in healthy volunteers. Lipids. 2011 Jan;46(1):37-46.