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J. Freysdottir · SciRah

Researcher profile · Semantic Scholar

J. Freysdottir

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J. Freysdottir — researcher profile on SciRah

h-index: 22
Works: 70
Citations: 1,414

Most-cited papers

Expression of cytokines, chemokines, and chemokine receptors in oral ulcers of patients with Behcet's disease (BD) and recurrent aphthous stomatitis is Th1‐associated, although Th2‐association is also observed in patients with BD
A. Dalghous, J. Freysdottir, Farida Fortune
2006Scandinavian Journal of Rheumatology129 citations
Semantic Scholar
Orofacial granulomatosis: review on aetiology and pathogenesis.
W. M. Tilakaratne, J. Freysdottir, F. Fortune
2007Journal of Oral Pathology & Medicine122 citations
Semantic Scholar
In vitro and in vivo immunomodulating effects of traditionally prepared extract and purified compounds from Cetraria islandica.
J. Freysdottir, S. Omarsdottir, K. Ingolfsdottir, A. Víkingsson +1 more
2008International Immunopharmacology62 citations
Semantic Scholar
Anti-Inflammatory and Proresolving Effects of the Omega-6 Polyunsaturated Fatty Acid Adrenic Acid
H. Brouwers, H. Jónasdóttir, Marije E. Kuipers, J. Kwekkeboom +15 more
2020Journal of Immunology59 citations Open access
Semantic Scholar
Evidence for extrathymic T cell maturation after thymectomy in infancy
H. Torfadóttir, J. Freysdottir, I. Skaftadóttir, Á. Haraldsson +2 more
2006Clinical and Experimental Immunology59 citations Open access
Semantic Scholar
Immunomodulating polysaccharides from the lichen Thamnolia vermicularis var. subuliformis.
S. Omarsdottir, J. Freysdottir, E. Olafsdottir
2007Phytomedicine56 citations
Semantic Scholar
Oral Biopsies from Patients with Orofacial Granulomatosis with Histology Resembling Crohn's Disease Have a Prominent Th1 Environment
J. Freysdottir, Sha Zhang, W. Tilakaratne, F. Fortune
2007Inflammatory Bowel Diseases56 citations Open access
Semantic Scholar
Immunomodulating effects of lichen-derived polysaccharides on monocyte-derived dendritic cells.
S. Omarsdottir, E. Olafsdottir, J. Freysdottir
2006International Immunopharmacology48 citations
Semantic Scholar
Exopolysaccharides from Cyanobacterium aponinum from the Blue Lagoon in Iceland increase IL-10 secretion by human dendritic cells and their ability to reduce the IL-17+RORγt+/IL-10+FoxP3+ ratio in CD4+ T cells.
Asa B Gudmundsdottir, S. Omarsdottir, Á. Brynjólfsdóttir, B. Paulsen +2 more
2015Immunology Letters41 citations
Semantic Scholar
Diversity of gammadelta T cells in patients with Behcet's disease is indicative of polyclonal activation.
J. Freysdottir, L. Hussain, I. Farmer, S.-H. Lau +1 more
2006Oral Diseases39 citations
Semantic Scholar
Differential mobility separation of leukotrienes and protectins.
H. Jónasdóttir, C. Papan, Sebastian Fabritz, L. Balas +4 more
2015Analytical Chemistry36 citations
Semantic Scholar
6-Bromoindole Derivatives from the Icelandic Marine Sponge Geodia barretti: Isolation and Anti-Inflammatory Activity
X. Di, C. Rouger, I. Hardardottir, J. Freysdottir +3 more
2018Marine Drugs32 citations Open access
Semantic Scholar
Oxidative processes during enzymatic hydrolysis of cod protein and their influence on antioxidant and immunomodulating ability.
S. Halldórsdóttir, H. Sveinsdóttir, J. Freysdottir, H. Kristinsson
2014Food Chemistry31 citations
Semantic Scholar
A polysaccharide fraction from Achillea millefolium increases cytokine secretion and reduces activation of Akt, ERK and NF-κB in THP-1 monocytes.
J. Freysdottir, O. T. Logadóttir, S. Omarsdottir, A. Víkingsson +1 more
2016Carbohydrate Polymers29 citations
Semantic Scholar
Ethanol extract from birch bark (Betula pubescens) suppresses human dendritic cell mediated Th1 responses and directs it towards a Th17 regulatory response in vitro.
J. Freysdottir, M. Sigurpalsson, S. Omarsdottir, E. Olafsdottir +2 more
2011Immunology Letters28 citations
Semantic Scholar
Sulphated polysaccharide from the sea cucumber Cucumaria frondosa affect maturation of human dendritic cells and their activation of allogeneic CD4(+) T cells in vitro
Varsha Kale, J. Freysdottir, B. Paulsen, Ó. Friðjónsson +2 more
201327 citations
Semantic Scholar
Dermatitis Herpetiformis‐an Autoimmune Disease due to Cross‐Reaction between Dietary Glutenin and Dermal Elastin?
S. Bödvarsson, I. Jónsdóttir, J. Freysdottir, J. Leonard +2 more
1993Scandinavian Journal of Immunology27 citations
Semantic Scholar
Effects of lichen heteroglycans on proliferation and IL-10 secretion by rat spleen cells and IL-10 and TNF-alpha secretion by rat peritoneal macrophages in vitro.
S. Omarsdottir, J. Freysdottir, Hilde Barsett, B. Paulsen +1 more
2005Phytomedicine24 citations
Semantic Scholar
Reciprocal Changes in Complement Activity and Immune-Complex Levels during Plasma Infusion in a C2-Deficient SLE Patient
K. Erlendsson, K. Traustadottir, J. Freysdottir, K. Steinsson +2 more
1993Lupus24 citations
Semantic Scholar
Exopolysaccharides from Cyanobacterium aponinum induce a regulatory dendritic cell phenotype and inhibit SYK and CLEC7A expression in dendritic cells, T cells and keratinocytes
Asa B Gudmundsdottir, Á. Brynjólfsdóttir, E. Olafsdottir, I. Hardardottir +1 more
2019International Immunopharmacology23 citations
Semantic Scholar
Acute phase inflammation is characterized by rapid changes in plasma/peritoneal fluid N-glycosylation in mice
Y. Rombouts, H. Jónasdóttir, A. Hipgrave Ederveen, K. Reiding +6 more
2016Glycoconjugate Journal23 citations Open access
Semantic Scholar
Dietary omega-3 fatty acids enhance the B1 but not the B2 cell immune response in mice with antigen-induced peritonitis.
Valgerdur Tomasdottir, Sigrun Thorleifsdottir, A. Víkingsson, I. Hardardottir +1 more
2014Journal of Nutritional Biochemistry23 citations
Semantic Scholar
A heteroglycan from the cyanobacterium Nostoc commune modulates LPS-induced inflammatory cytokine secretion by THP-1 monocytes through phosphorylation of ERK1/2 and Akt.
Á. Ólafsdóttir, G. Thorlacius, S. Omarsdottir, E. Olafsdottir +3 more
2014Phytomedicine23 citations
Semantic Scholar
Bromotryptamine and Imidazole Alkaloids with Anti-inflammatory Activity from the Bryozoan Flustra foliacea.
X. Di, Shuqi Wang, Jon T. Oskarsson, C. Rouger +6 more
2020Journal of Natural Products22 citations
Semantic Scholar
Quinolinic Alkaloids from Galipea longiflora Krause Suppress Production of Proinflammatory Cytokines in vitro and Control Inflammation in vivo upon Leishmania Infection in Mice
J. Calla-Magariños, T. Quispe, A. Gimenez, J. Freysdottir +2 more
2013Scandinavian Journal of Immunology22 citations
Semantic Scholar
Impact of dibenzocyclooctadiene lignans from Schisandra chinensis on the redox status and activation of human innate immune system cells
Maarit Kortesoja, Elina Karhu, E. Olafsdottir, J. Freysdottir +1 more
2019Free Radical Biology & Medicine21 citations Open access
Semantic Scholar
Aqueous extracts from Menyanthes trifoliate and Achillea millefolium affect maturation of human dendritic cells and their activation of allogeneic CD4+ T cells in vitro.
G. Jonsdottir, S. Omarsdottir, A. Víkingsson, I. Hardardottir +1 more
2011Journal of Ethnopharmacology20 citations
Semantic Scholar
Dietary fish oil reduces the acute inflammatory response and enhances resolution of antigen-induced peritonitis.
Valgerdur Tomasdottir, A. Víkingsson, J. Freysdottir, I. Hardardottir
2013Journal of Nutritional Biochemistry19 citations
Semantic Scholar
Biodiversity of benthic invertebrates and bioprospecting in Icelandic waters
S. Omarsdottir, E. Einarsdóttir, H. Ögmundsdóttir, J. Freysdottir +3 more
2012Phytochemistry Reviews19 citations
Semantic Scholar
Two circulating neutrophil populations in acute inflammation in mice
H. Arnardottir, J. Freysdottir, I. Hardardottir
2012Inflammation Research18 citations
Semantic Scholar
A flow cytometric assay for measuring complement receptor 1 (CR1) and the complement fragments C3d and C4d on erythrocytes.
J. Freysdottir, Asbjörn Sigfusson
1991JIM - Journal of Immunological Methods18 citations
Semantic Scholar
Keratinocytes secrete multiple inflammatory and immune biomarkers, which are regulated by LL‐37, in a psoriasis mimicking microenvironment
H. Sigurgrímsdóttir, Eva Ösp Björnsdóttir, J. H. Eysteinsdóttir, J. Ólafsson +5 more
2021Scandinavian Journal of Immunology17 citations Open access
Semantic Scholar
Docosahexaenoic Acid Modulates NK Cell Effects on Neutrophils and Their Crosstalk
Kirstine Nolling Jensen, S. Ómarsdóttir, Margret Sol Reinhardsdottir, I. Hardardottir +1 more
2020Frontiers in Immunology17 citations Open access
Semantic Scholar
Dendritic cells matured in the presence of the lycopodium alkaloid annotine direct T cell responses toward a Th2/Treg phenotype.
I. Hardardottir, E. Olafsdottir, J. Freysdottir
2015Phytomedicine15 citations
Semantic Scholar
Dietary fish oil decreases the proportion of classical monocytes in blood in healthy mice but increases their proportion upon induction of inflammation.
H. Arnardottir, J. Freysdottir, I. Hardardottir
2012Journal of NutriLife15 citations Open access
Semantic Scholar
Expression of adhesion and activation molecules in human buccal epithelial cell lines and normal human buccal epithelium in situ.
Ian Farmer, J. Freysdottir, Abdulbaset M. Dalghous, Farida Fortune
2001Journal of Oral Pathology & Medicine15 citations
Semantic Scholar
Immunomodulatory N-acyl Dopamine Glycosides from the Icelandic Marine Sponge Myxilla incrustans Collected at a Hydrothermal Vent Site
E. Einarsdóttir, Hongbing Liu, J. Freysdottir, C. Gotfredsen +1 more
2016Planta Medica14 citations
Semantic Scholar
Dietary fish oil increases the proportion of a specific neutrophil subpopulation in blood and total neutrophils in peritoneum of mice following endotoxin-induced inflammation.
H. Arnardottir, J. Freysdottir, I. Hardardottir
2013Journal of Nutritional Biochemistry14 citations
Semantic Scholar
Effect of in vitro digested cod liver oil of different quality on oxidative, proteomic and inflammatory responses in the yeast Saccharomyces cerevisiae and human monocyte-derived dendritic cells.
Karin Larsson, Katja Istenič, T. Wulff, R. Jónsdóttir +4 more
2015The Journal of the Science of Food and Agriculture12 citations
Semantic Scholar
Lipophilic fractions from the marine sponge Halichondria sitiens decrease secretion of pro-inflammatory cytokines by dendritic cells and decrease their ability to induce a Th1 type response by allogeneic CD4+ T cells
X. Di, Jon T. Oskarsson, S. Omarsdottir, J. Freysdottir +1 more
2017Pharmaceutical Biology11 citations Open access
Semantic Scholar
In vitro and in vivo immunomodulating effects of traditionally-prepared extract and purified compounds from Cetraria islandica
J. Freysdottir, S. Omarsdottir, K. Ingolfsdottir, A. Víkingsson +1 more
2008Proceedings of the Nutrition Society11 citations Open access
Semantic Scholar
Murine antigen-induced inflammation--a model for studying induction, resolution and the adaptive phase of inflammation.
Valgerdur Tomasdottir, A. Víkingsson, I. Hardardottir, J. Freysdottir
2014JIM - Journal of Immunological Methods10 citations
Semantic Scholar
Vβ Usage and T Regulatory Cells in Children Following Partial or Total Thymectomy after Open Heart Surgery in Infancy
J. H. Eysteinsdottir, J. Freysdottir, I. Skaftadóttir, H. Helgason +2 more
2009Scandinavian Journal of Immunology8 citations Open access
Semantic Scholar
Evaluation of in vivo immune complex formation and complement activation in patients receiving intravenous Streptokinase
J. Freysdottir, S. Ormarsdóttir, A. Sigfússon
1993Clinical and Experimental Immunology8 citations Open access
Semantic Scholar
Geobarrettin D, a Rare Herbipoline-Containing 6-Bromoindole Alkaloid from Geodia barretti
X. Di, I. Hardardottir, J. Freysdottir, Dong-Dong Wang +3 more
2023Molecules7 citations Open access
Semantic Scholar
Alkaloids from Galipea longiflora Krause modify the maturation of human dendritic cells and their ability to stimulate allogeneic CD4+ T cells.
J. Calla-Magariños, C. Fernández, M. Troye-Blomberg, J. Freysdottir
2013International Immunopharmacology7 citations
Semantic Scholar
Do non‐steroidal anti‐inflammatory drugs influence chronic inflammation? The effects of piroxicam on chronic antigen‐induced arthritis in rats
S. Sigurdardottir, J. Freysdottir, T. Vikingsdottir, H. Valdimarsson +1 more
2008Scandinavian Journal of Rheumatology7 citations
Semantic Scholar
Production of monoclonal antibodies.
J. Freysdottir
2000Methods in Molecular Medicine7 citations
Semantic Scholar
Effective treatment with balneophototherapy and narrowband UVB monotherapy reduces skin homing Th17/Tc17 and Th22/Tc22 effector cells in peripheral blood in patients with psoriasis.
J. H. Eysteinsdóttir, H. Sigurgrímsdóttir, H. Einarsdóttir, J. Freysdottir +4 more
2019Journal of dermatological science (Amsterdam)6 citations
Semantic Scholar
Natural killer cells play an essential role in resolution of antigen‐induced inflammation in mice
Ó. Anuforo, S. Bjarnarson, H. Jónasdóttir, M. Giera +2 more
2018Molecular Immunology6 citations
Semantic Scholar

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I. Hardardottir×21
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S. Omarsdottir×17
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E. Olafsdottir×12
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