Browsing Bergen Open Research Archive by Author "Jenum, Synne"
Now showing items 1-20 of 22
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A 2-Dose AERAS-402 Regimen Boosts CD8+ Polyfunctionality in HIV-Negative, BCG-Vaccinated Recipients
Sivakumaran, Dhanasekaran; Blatner, Gretta; Bakken, Rasmus; Hokey, David A.; Ritz, Christian; Jenum, Synne; Grewal, Harleen (Journal article; Peer reviewed, 2021)Despite the widespread use of BCG, tuberculosis (TB) remains a global threat. Existing vaccine candidates in clinical trials are designed to replace or boost BCG which does not provide satisfying long-term protection. ... -
Added Value of IP-10 as a Read-Out of Mycobacterium tuberculosis. Specific Immunity in Young Children
Jenum, Synne; Sivakumaran, Dhanasekaran; Ritz, Christian; Macaden, R; Doherty, TM; Grewal, Harleen; TB Trials Study, Group (Peer reviewed; Journal article, 2016)We have explored the added value of interferon-γ (IFNγ)– inducible protein 10 as a read-out of Mycobacterium tuberculosis–specific immunity in young Indian children, where the sensitivity of the IFNγ release assays for ... -
Approaching a diagnostic point-of-care test for pediatric tuberculosis through evaluation of immune biomarkers across the clinical disease spectrum
Jenum, Synne; Sivakumaran, Dhanasekaran; Lodha, Rakesh; Mukherjee, Aparna; Saini, Deepak Kumar; Singh, Sarman; Singh, Varinder; Medigeshi, Guruprasad; Haks, Marielle C.; Ottenhoff, Tom H.M.; Doherty, Timothy Mark; Kabra, Sushil K.; Ritz, Christian; Grewal, Harleen (Peer reviewed; Journal article, 2016-01-04)The World Health Organization (WHO) calls for an accurate, rapid, and simple point-of-care (POC) test for the diagnosis of pediatric tuberculosis (TB) in order to make progress “Towards Zero Deaths”. Whereas the sensitivity ... -
BLR1 and FCGR1A transcripts in peripheral blood associate with the extent of intrathoracic tuberculosis in children and predict treatment outcome
Jenum, Synne; Bakken, Rasmus; Sivakumaran, Dhanasekaran; Mukherjee, Aparna; Lodha, Rakesh; Singh, Sarman; Singh, Varinder; Haks, Marielle C.; Ottenhoff, Tom H.M.; Kabra, Sushil K.; Doherty, Timothy Mark; Ritz, Christian; Grewal, Harleen (Peer reviewed; Journal article, 2016-12-12)Biomarkers reflecting the extent of Mycobacterium tuberculosis-induced pathology and normalization during anti-tuberculosis treatment (ATT) would considerably facilitate trials of new treatment regimens and the identification ... -
Clinical characteristics, risk factors and outcomes in patients with severe COVID-19 registered in the ISARIC WHO clinical characterisation protocol: a prospective, multinational, multicentre, observational study
Reyes, Luis Felipe; Murthy, Srinivas; Garcia-Gallo, Esteban; Irvine, Mike; Merson, Laura; Martin-Loeches, Ignacio; Rello, Jordi; Taccone, Fabio S.; Fowler, Robert A.; Docherty, Annemarie B.; Kartsonaki, Christiana; Aragao, Irene; Barrett, Peter W.; Beane, Abigail; Burrell, Aidan J.C.; Cheng, Matthew Pellan; Christian, Michael D.; Cidade, Jose Pedro; Citarella, Barbara Wanjiru; Donnelly, Christl A.; Fernandes, Susana M.; French, Craig; Haniffa, Rashan; Harrison, Ewen M.; Ho, Antonia Ying Wai; Joseph, Mark; Khan, Irfan Ahmad; Kho, Michelle E.; Kildal, Anders Benjamin; Kutsogiannis, Demetrios; Lamontagne, François; Bekken, Gry Klouman; Dudman, Susanne Gjeruldsen; Dyrhol-Riise, Anne Ma; Heggelund, Lars; Hesstvedt, Liv; Holten, Aleksander Rygh; Holter, Jan Cato; Jenum, Synne; Johal, Simreen Kaur; Lind, Andreas; Müller, Fredrik; Muller, Karl Erik; Pettersen, Frank O.; Quist-Paulsen, Else; Reikvam, Dag Henrik; Skeie, Linda Gail; Skogen, Vegard; Stiksrud, Birgitte; Tonby, Kristian (Journal article; Peer reviewed, 2022)Due to the large number of patients with severe coronavirus disease 2019 (COVID-19), many were treated outside the traditional walls of the intensive care unit (ICU), and in many cases, by personnel who were not trained ... -
Cyclooxygenase inhibitors impair CD4 T cell immunity and exacerbate Mycobacterium tuberculosis infection in aerosol-challenged mice
Mortensen, Rasmus; Clemmensen, Helena Strand; Woodworth, Joshua S.; Therkelsen, Marie Louise; Mustafa, Tehmina; Tonby, Kristian; Jenum, Synne; Agger, Else Marie; Dyrhol-Riise, Anne Ma; Andersen, Peter (Peer reviewed; Journal article, 2019)Tuberculosis, caused by infection with Mycobacterium tuberculosis (Mtb), kills over 1.6 million people each year despite availability of antibiotics. The increase in drug resistant Mtb strains is a major public health ... -
The diagnostic utility of microscopic quality assessment of sputum samples in the era of rapid syndromic PCR testing
Markussen, Dagfinn Lunde; Ebbesen, Marit Helen; Serigstad, Sondre; Knoop, Siri Tandberg; Ritz, Christian; Bjørneklett, Rune Oskar; Kommedal, Øyvind; Jenum, Synne; Ulvestad, Elling; Grewal, Harleen (Journal article; Peer reviewed, 2023)This prospective study assessed the value of initial microscopy evaluation of sputum samples submitted for rapid syndromic PCR-based testing. Bacterial detections by the BioFire FilmArray Pneumonia Panel plus in 126 high- ... -
Effect of Non-tuberculous Mycobacteria on Host Biomarkers Potentially Relevant for Tuberculosis Management.
Dhanasakeran, S.; Jenum, Synne; Stavrum, Ruth; Wiker, Harald G.; Kenneth, John; Vaz, Mario; Doherty, Tanya Mark; Grewal, Harleen (Peer reviewed; Journal article, 2014-10-16)Background Non-tuberculous mycobacteria (NTM) are different from Mycobacterium tuberculosis (MTB) both in their ubiquitous environmental distribution and in their reduced capacity to cause disease. While often neglected ... -
The frequencies of IFNγ+IL2+TNFα+ PPD-specific CD4+CD45RO+ T-cells correlate with the magnitude of the QuantiFERON® gold in-tube response in a prospective study of healthy Indian adolescents
Jenum, Synne; Grewal, Harleen; Hokey, David A.; Kenneth, John; Vaz, Mario; Doherty, Timothy Mark; Jahnsen, Frode Lars (Peer reviewed; Journal article, 2014-07-03)Background: QuantiFERON-TB Gold In-Tube (QFT) is an IFNγ-release assay used in the diagnosis of Mycobacterium tuberculosis (MTB) infection. The risk of TB progression increases with the magnitude of the MTB-specific ... -
Gut microbiota composition during hospitalization is associated with 60-day mortality after severe COVID-19
Trøseid, Marius; Holter, Jan Cato; Holm, Kristian; Vestad, Beate; Sazonova, Taisiia; Granerud, Beathe Kiland; Dyrhol-Riise, Anne Ma; Holten, Aleksander Rygh; Tonby, Kristian; Kildal, Anders Benjamin; Heggelund, Lars; Tveita, Anders Aune; Bøe, Simen; Müller, Karl Erik; Jenum, Synne; Hov, Johannes Espolin Roksund; Ueland, Thor (Journal article; Peer reviewed, 2023)Background Gut microbiota alterations have been reported in hospitalized COVID-19 patients, with reduced alpha diversity and altered microbiota composition related to respiratory failure. However, data regarding gut ... -
Host blood RNA transcript and protein signatures for sputum-independent diagnostics of tuberculosis in adults
Sivakumaran, Dhanasekaran; Ritz, Christian; Gjøen, John Espen; Vaz, Mario; Selvam, Sumithra; Ottenhoff, Tom H.M.; Doherty, Timothy Mark; Jenum, Synne; Grewal, Harleen (Journal article; Peer reviewed, 2021)To achieve the ambitious targets for tuberculosis (TB) prevention, care, and control stated by the End TB Strategy, new health care strategies, diagnostic tools are warranted. Host-derived biosignatures are explored for ... -
Host blood-based biosignatures for subclinical TB and incipient TB: A prospective study of adult TB household contacts in Southern India
Sivakumaran, Dhanasekaran; Jenum, Synne; Srivastava, Aashish; Steen, Vidar Martin; Vaz, Mario; Doherty, Timothy Mark; Ritz, Christian; Grewal, Harleen (Journal article; Peer reviewed, 2023-01-11)A large proportion of the global tuberculosis (TB) burden is asymptomatic and not detectable by symptom-based screening, driving the TB epidemic through continued M. tuberculosis transmission. Currently, no validated tools ... -
Host Transcriptional Signatures Predict Etiology in Community-Acquired Pneumonia: Potential Antibiotic Stewardship Tools
Siljan, William Ward; Sivakumaran, Dhanasekaran; Ritz, Christian; Jenum, Synne; Ottenhoff, Tom HM; Ulvestad, Elling; Holter, Jan Cato; Heggelund, Lars; Grewal, Harleen (Journal article; Peer reviewed, 2022)Background: Current approaches for pathogen identification in community-acquired pneumonia (CAP) remain suboptimal, leaving most patients without a microbiological diagnosis. If better diagnostic tools were available for ... -
Identification of subclinical tuberculosis in household contacts using exposure scores and contact investigations
Bekken, Gry Klouman; Ritz, Christian; Selvam, Sumithra; Jesuraj, Nelson; Hesseling, Anneke; Doherty, T. Mark; Grewal, Harleen; Vaz, Mario; Jenum, Synne (Journal article; Peer reviewed, 2020-01-31)Background: The goal of tuberculosis elimination put forward in the End TB Strategy prioritizes diagnosis and treatment of incipient and subclinical TB, recently defined by key stakeholders as “asymptomatic, early pre-clinical ... -
Improving Assignments for Therapeutic and Prophylactic Treatment Within TB Households. A Potential for Immuno-Diagnosis?
Sivakumaran, Dhanasekaran; Jenum, Synne; Ritz, Christian; Vaz, Mario; Doherty, Timothy Mark; Grewal, Harleen (Journal article; Peer reviewed, 2022-03-17)Delays in diagnosis and treatment of pulmonary tuberculosis (TB) can lead to more severe disease and increased transmission. Contact investigation among household contacts (HHCs) of TB patients is crucial to ensure optimal ... -
Incidence of tuberculosis and the influence of surveillance strategy on tuberculosis case-finding and all-cause mortality: A cluster randomised trial in Indian neonates vaccinated with BCG
Jenum, Synne; Sumithra, Selvam; Nelson, Jesuraj; Christian, Ritz; Hesseling Anneke, C; Vicky, Cardenas; Esther, Lau; Mark, Doherty T; Grewal, Harleen; Mario, Vaz (Peer reviewed; Journal article, 2019)Introduction: Accurate tuberculosis (TB) incidence and optimal surveillance strategies are pertinent to TB vaccine trial design. Infants are a targeted population for new TB vaccines, but data from India, with the highest ... -
Increased interleukin-6 and macrophage chemoattractant protein-1 are associated with respiratory failure in COVID-19
Jørgensen, Marthe Jøntvedt; Holter, Jan Cato; Christensen, Erik; Schjalm, Camilla; Tonby, Kristian; Pischke, Soeren; Jenum, Synne; Skeie, Linda Gail; Nur, Sarah; Lind, Andreas; Opsand, Hanne; Enersen, Tone Burvald; Grøndahl, Ragnhild; Hermann, Anne; Dudman, Susanne Gjeruldsen; Müller, Fredrik; Ueland, Thor; Mollnes, Tom Eirik; Aukrust, Pål; Heggelund, Lars; Holten, Aleksander Rygh; Dyrhol-Riise, Anne Ma (Journal article; Peer reviewed, 2020-12)In SARS-CoV-2 infection there is an urgent need to identify patients that will progress to severe COVID-19 and may benefit from targeted treatment. In this study we analyzed plasma cytokines in COVID-19 patients and ... -
Influence of Age and Nutritional Status on the Performance of the Tuberculin Skin Test and QuantiFERON®-TB Gold In-Tube in Young Children Evaluated for Tuberculosis in Southern India.
Jenum, Synne; Selvam, Sumithra; Mahelai, Diana; Jesuraj, Nelson; Cardenas, Vicky; Kenneth, John; Hesseling, Anneke C.; Doherty, Tanya Mark; Vaz, Mario; Grewal, Harleen (Peer reviewed; Journal article, 2014-10)Background: Reliable identification of Mycobacterium tuberculosis infection or tuberculosis (TB) disease in young children is vital to assure adequate preventive and curative treatment. The tuberculin skin test (TST) and ... -
Novel transcriptional signatures for sputum-independent diagnostics of tuberculosis in children
Gjøen, John Espen; Jenum, Synne; Sivakumaran, Dhanasekaran; Mukherjee, Aparna; MacAden, Ragini; Kabra, Sushil K.; Lodha, Rakesh; Ottenhoff, Tom H.M.; Haks, Marielle C.; Doherty, Timothy Mark; Ritz, Christian; Grewal, Harleen (Peer reviewed; Journal article, 2017-07-19)Pediatric tuberculosis (TB) is challenging to diagnose, confirmed by growth of Mycobacterium tuberculosis at best in 40% of cases. The WHO has assigned high priority to the development of non-sputum diagnostic tools. We ... -
A Phase I/II randomized trial of H56:IC31 vaccination and adjunctive cyclooxygenase-2-inhibitor treatment in tuberculosis patients
Jenum, Synne; Tonby, Kristian; Rueegg, Corina Silvia; Ruhwald, Morten; Kristiansen, Max Per; Bang, Peter; Olsen, Inge Christoffer; Sellæg, Kjersti; Røstad, Kjerstin; Mustafa, Tehmina; Tasken, Kjetil; Kvale, Dag; Mortensen, Rasmus; Riise, Anne Margarita Dyrhol (Journal article; Peer reviewed, 2021)Host-directed-therapy strategies are warranted to fight tuberculosis. Here we assess the safety and immunogenicity of adjunctive vaccination with the H56:IC31 candidate and cyclooxygenase-2-inhibitor treatment (etoricoxib) ...