• 21-Hydroxylase-Specific CD8+ T Cells in Autoimmune Addison’s Disease Are Restricted by HLA-A2 and HLA-C7 Molecules 

      Hellesen, Alexander; Aslaksen, Sigrid; Breivik, Lars Ertesvåg; Røyrvik, Ellen Christine; Bruserud, Øyvind; Edvardsen, Kine Susann Waade; Brokstad, Karl Albert; Wolff, Anette Susanne Bøe; Husebye, Eystein Sverre; Bratland, Eirik (Journal article; Peer reviewed, 2021)
      Objectives: CD8+ T cells targeting 21-hydroxylase (21OH) are presumed to play a central role in the destruction of adrenocortical cells in autoimmune Addison’s disease (AAD). Earlier reports have suggested two immunodominant ...
    • 25-hydroxy-vitamin D concentration is not affected by severe or non-severe pneumonia, or inflammation, in young children 

      Haugen, Johanne; Chandyo, Ram Krishna; Ulak, Manjeswori; Mathisen, Maria; Basnet, Sudha; Brokstad, Karl Albert; Valentiner-Branth, Palle; Shrestha, Prakash S.; Strand, Tor A (Peer reviewed; Journal article, 2017-01-17)
      Poor vitamin D status has been associated with increased risk and severity of respiratory tract infections. Whether or not inflammation and infection affects 25-hydroxy vitamin D (25(OH)D) concentration is controversial ...
    • Altered levels of cytokines in patients with irritable bowel syndrome are not correlated with fatigue 

      Vara, Ellen Johanne; Brokstad, Karl Albert; Hausken, Trygve; Lied, Gülen Arslan (Peer reviewed; Journal article, 2018-07-06)
      Introduction: A considerable number of patients with gastrointestinal complaints attributable to irritable bowel syndrome (IBS) have shown evidence of immune activation. Fatigue is also frequently reported by IBS patients ...
    • Attack rates amongst household members of outpatients with confirmed COVID-19 in Bergen, Norway: A case-ascertained study 

      Kuwelker, Kanika; Zhou, Fan; Blomberg, Bjørn; Jalloh, Sarah Larteley Lartey; Brokstad, Karl Albert; Trieu, Mai Chi; Bansal, Amit; Madsen, Anders; Krammer, Florian; Mohn, Kristin Greve-Isdahl; Tøndel, Camilla; Linchausen, Dagrunn Waag; Cox, Rebecca Jane; Langeland, Nina (Journal article; Peer reviewed, 2021)
      Background Households studies reflect the natural spread of SARS-CoV-2 in immunologically naive populations with limited preventive measures to control transmission. We hypothesise that seropositivity provides more ...
    • Boosting of cross-reactive and protection-associated T cells in children after live attenuated influenza vaccination 

      Mohn, Kristin Greve-Isdahl; Zhou, Fan; Brokstad, Karl Albert; Sridhar, Saranya; Cox, Rebecca Jane (Peer reviewed; Journal article, 2017-05)
      Background. Live attenuated influenza vaccines (LAIVs) stimulate a multifaceted immune response including cellular immunity, which may provide protection against newly emerging strains. This study shows proof of concept ...
    • Calprotectin (S100A8/A9) has the strongest association with ultrasound-detected synovitis and predicts response to biologic treatment: results from a longitudinal study of patients with established rheumatoid arthritis 

      Nordal, Hilde Haugedal; Brokstad, Karl Albert; Solheim, Magne; Halse, Anne-Kristine; Kvien, Tore Kristian; Hammer, Hilde Berner (Peer reviewed; Journal article, 2017-01-12)
      Background: Calprotectin (S100A8/A9 or MRP8/14) and S100A12 (leukocyte-derived proteins), interleukin 6 (IL-6) and vascular endothelial growth factor (VEGF) are markers of inflammation and angiogenesis. Ultrasound (US) is ...
    • Chemokines are secreted by monocytes following OK-432 (lyophilized Streptococcus pyogenes) stimulation 

      Olsnes, Carla; Stavang, Helen Åse Margrethe; Brokstad, Karl Albert; Olofsson, Jan; Aarstad, Hans Jørgen (Peer reviewed; Journal article, 2009-01-28)
      Background: OK-432, penicillin-killed Streptococcus pyogenes, is used in treating lymphangiomas and carcinomas. We have studied in vitro the role of mononuclear phagocytes (MNPs), including purified monocytes (MOs), in the ...
    • Comparison of inflammatory markers in induced and spontaneous sputum in a cohort of COPD patients 

      Tangedal, Solveig; Aanerud, Marianne; Persson, Louise Jeanette Pauline; Brokstad, Karl Albert; Bakke, Per S.; Eagan, Tomas Mikal (Peer reviewed; Journal article, 2014-11-15)
      Background: Sputum induction is a non-invasive method for obtaining measurements of inflammation in the airways. Whether spontaneously sampled sputum can be a valid surrogate is unknown. The aim of this study was to compare ...
    • Complement C4 Copy Number Variation is Linked to SSA/Ro and SSB/La Autoantibodies in Systemic Inflammatory Autoimmune Diseases 

      Lundtoft, Christian; Pucholt, Pascal; Martin, Myriam; Bianchi, Matteo; Lundström, Emeli; Eloranta, Maija-Leena; Sandling, Johanna K.; Sjöwall, Christopher; Jönsen, Andreas; Gunnarsson, Iva; Rantapää-Dahlqvist, Solbritt; Bengtsson, Anders A.; Leonard, Dag; Baecklund, Eva; Jonsson, Roland; Hammenfors, Daniel; Forsblad-d'Elia, Helena; Eriksson, Per; Mandl, Thomas; Magnusson Bucher, Sara; Norheim, Katrine Brække; Johnsen, Svein Joar Auglæn; Omdal, Roald; Kvarnström, Marika; Wahren Herlenius, Marie Elisabeth; Notarnicola, Antonella; Andersson, Anna Helena; Molberg, Øyvind; Diederichsen, Louise Pyndt; Almlöf, Jonas; Syvänen, Ann-Christine; Kozyrev, Sergey V.; Lindblad-Toh, Kerstin; Rönnblom, Lars; Brokstad, Karl Albert; Skarstein, Kathrine; Jonsson, Malin Viktoria; Appel, Silke; Aqrawi, Lara A.; Jensen, Janicke Liaaen; Palm, Øyvind; Nilsson, Birgitta Blakstad; Blom, Anna M.; Lundberg, Ingrid E.; Nordmark, Gunnel; Diaz-Gallo, Lina Marcela; Svenungsson, Elisabet; Rönnblom, Lars (Journal article; Peer reviewed, 2022)
      Objective Copy number variation of the C4 complement components, C4A and C4B, has been associated with systemic inflammatory autoimmune diseases. This study was undertaken to investigate whether C4 copy number variation ...
    • Cytokine concentrations in plasma from children with severe and non-severe community acquired pneumonia 

      Haugen, Johanne; Chandyo, Ram Krishna; Brokstad, Karl Albert; Mathisen, Maria; Ulak, Manjeswori; Basnet, Sudha; Valentiner-Branth, Palle; Strand, Tor (Journal article; Peer reviewed, 2015-09-25)
      Background: Children in low and middle-income countries have a high burden of pneumonia. Measuring the cytokine responses may be useful to identify novel markers for diagnosing, monitoring, and treating pneumonia. Objective: ...
    • Durable immune responses after BNT162b2 vaccination in home-dwelling old adults 

      Hansen, Lena; Brokstad, Karl Albert; Bansal, Amit; Zhou, Fan; Bredholt, Geir; Onyango, Therese Bredholt; Sandnes, Helene Heitmann; Elyanow, Rebecca; Madsen, Anders; Trieu, Mai Chi; Sævik, Marianne; Søyland, Hanne; Olofsson, Jan Stefan; Vahokoski, Juha; Ertesvåg, Nina Urke; Fjelltveit, Elisabeth Berg; Shafiani, Shahin; Tøndel, Camilla; Chapman, Heidi; Kaplan, Ian; Mohn, Kristin Greve-Isdahl; Langeland, Nina; Cox, Rebecca Jane (Journal article; Peer reviewed, 2023)
      Objectives Elderly are an understudied, high-risk group vulnerable to severe COVID-19. We comprehensively analyzed the durability of humoral and cellular immune responses after BNT162b2 vaccination and SARS-CoV-2 infection ...
    • Durable T-cellular and humoral responses in SARS-CoV-2 hospitalized and community patients 

      Mohn, Kristin Greve-Isdahl; Bredholt, Geir; Zhou, Fan; Madsen, Anders Aasgaard; Onyango, Therese Bredholt; Fjelltveit, Elisabeth Berg; Jalloh, Sarah Larteley Lartey; Brokstad, Karl Albert; Cantoni, Diego; Mayora-Neto, Martin; Temperton, Nigel; Langeland, Nina; Cox, Rebecca Jane (Journal article; Peer reviewed, 2022)
      Background Neutralizing antibodies are important for protection against the pandemic SARS-CoV-2 virus, and long-term memory responses determine the risk of re-infection or boosting after vaccination. T-cellular responses ...
    • Early Induction of Cross-Reactive CD8+ T-Cell Responses in Tonsils After Live-Attenuated Influenza Vaccination in Children 

      Mohn, Kristin Greve-Isdahl; Brokstad, Karl Albert; Islam, Shahinul; Oftung, Fredrik; Tøndel, Camilla; Aarstad, Hans Jørgen; Cox, Rebecca Jane (Journal article; Peer reviewed, 2020)
      Background Live-attenuated influenza vaccine (LAIV) was licensed for prophylaxis of children 2–17 years old in Europe in 2012 and is administered as a nasal spray. Live-attenuated influenza vaccine induces both mucosal ...
    • The expression of B & T cell activation markers in children’s tonsils following live attenuated influenza vaccine 

      Panapasa, Jack A.; Cox, Rebecca Jane; Mohn, Kristin Greve-Isdahl; Aqrawi, Lara Adnan; Brokstad, Karl Albert (Peer reviewed; Journal article, 2015-07-06)
      Live attenuated influenza vaccines (LAIV) can prevent influenza illness and death in children. The absence of known correlates of protection induced by LAIV requires human studies of underlying mechanisms of vaccine-induced ...
    • Herring roe oil in treatment of psoriasis – influence on immune cells and cytokine network 

      Petrovic, Aleksandra; Bueide, Ingvild Øye; Tveit, Kåre Steinar; Hallaråker, Hogne; Bjørndal, Bodil; Holmes, Timothy Dunstan; Davies, Richard Allan; Brokstad, Karl Albert; Bergum, Brith; Appel, Silke (Journal article; Peer reviewed, 2023)
      Background: Psoriasis is a chronic immune-mediated skin disease with systemic inflammation and comorbidities. Although the disease severity may vary over time, many patients suffer from mild to moderate disease. Often local ...
    • Influenza Vaccination Strategies: Comparing Inactivated and Live Attenuated Influenza Vaccines 

      Sridhar, Saranya; Brokstad, Karl Albert; Cox, Rebecca Jane (Peer reviewed; Journal article, 2015-04-24)
      Influenza is a major respiratory pathogen causing annual outbreaks and occasional pandemics. Influenza vaccination is the major method of prophylaxis. Currently annual influenza vaccination is recommended for groups at ...
    • Live attenuated influenza vaccine in children induces b-cell responses in tonsils 

      Mohn, Kristin Greve-Isdahl; Brokstad, Karl Albert; Pathirana, Rishi; Bredholt, Geir; Jul-Larsen, Åsne; Trieu, Mai Chi; Jalloh, Sarah Larteley Lartey; Montemoli, Emanuele; Tøndel, Camilla; Aarstad, Hans Jørgen; Cox, Rebecca Jane (Peer reviewed; Journal article, 2016)
      Background. Tonsils play a key role in eliciting immune responses against respiratory pathogens. Little is known about how tonsils contribute to the local immune response after intranasal vaccination. Here, we uniquely ...
    • Live-attenuated influenza vaccine induces tonsillar follicular T helper cell responses that correlate with antibody induction 

      Jalloh, Sarah Larteley Lartey; Zhou, Fan; Brokstad, Karl Albert; Mohn, Kristin Greve-Isdahl; Slettevoll, Steffen Aleksander; Pathirana, Rishi; Cox, Rebecca Jane (Journal article; Peer reviewed, 2020)
      Background: Influenza remains a major threat to public health. Live-attenuated influenza vaccines (LAIV) have been shown to be effective, particularly in children. Follicular T helper (TFH) cells provide B-cell help and ...
    • Long COVID in a prospective cohort of home-isolated patients 

      Blomberg, Bjørn; Mohn, Kristin Greve-Isdahl; Brokstad, Karl Albert; Zhou, Fan; Linchausen, Dagrunn Waag; Hansen, Bernt-Are; Jalloh, Sarah Larteley Lartey; Onyango, Therese Bredholt; Kuwelker, Kanika; Sævik, Marianne; Bartsch, Hauke; Tøndel, Camilla; Kittang, Bård Reiakvam; Cox, Rebecca Jane; Langeland, Nina (Journal article; Peer reviewed, 2021)
      Long-term complications after coronavirus disease 2019 (COVID-19) are common in hospitalized patients, but the spectrum of symptoms in milder cases needs further investigation. We conducted a long-term follow-up in a ...
    • Longevity of B-cell and T-cell responses after live attenuated influenza vaccination in children 

      Mohn, Kristin Greve-Isdahl; Bredholt, Geir; Brokstad, Karl Albert; Pathirana, Rishi; Aarstad, Hans Jørgen; Tøndel, Camilla; Cox, Rebecca Jane (Peer reviewed; Journal article, 2015-05-15)
      Background. The live attenuated influenza vaccine (LAIV) is the preferred vaccine for children, but the mechanisms behind protective immune responses are unclear, and the duration of immunity remains to be elucidated. This ...