Blar i Bergen Open Research Archive på tittel

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    • Plasma cortisol linked gene networks in hepatic and adipose tissues implicate corticosteroid binding globulin in modulating tissue glucocorticoid action and cardiovascular risk 

      Bankier, Sean Alexander; Michoel, Tom (Journal article; Peer reviewed, 2023)
      Genome-wide association meta-analysis (GWAMA) by the Cortisol Network (CORNET) consortium identified genetic variants spanning the SERPINA6/SERPINA1 locus on chromosome 14 associated with morning plasma cortisol, cardiovascular ...

    • Plasma cotinine is positively associated with homocysteine in smokers but not in users of smokeless tobacco 

      Söderström, Elisabet; Nilsson, Torbjörn K.; Schneede, Jörn; Ueland, Per-Magne; Midttun, Øivind; Gylling, Björn; Johansson, Ingegerd; Hultdin, Johan (Journal article; Peer reviewed, 2021)
      Plasma total homocysteine (tHcy) is a risk marker, and smoking is an established risk factor for cardiovascular disease. It is unclear if the effect of smoked tobacco on homocysteine is mediated by nicotine or other ...

    • Plasma cystathionine and risk of incident stroke in patients with suspected stable angina pectoris 

      Dhar, Indu; Svingen, Gard Frodahl Tveitevåg; Ueland, Per Magne; Lysne, Vegard; Svenningsson, Mads Malm; Tell, Grethe S.; Nygård, Ottar (Peer reviewed; Journal article, 2018)
      Background: Cystathionine is an intermediate product in the transsulfuration pathway and formed during the B6‐dependent conversion of methionine to cysteine. Elevated plasma cystathionine has been related to atherosclerosis, ...

    • Plasma density gradients at the edge of polar ionospheric holes: the absence of phase scintillation 

      Jenner, Luke A.; Wood, Alan G.; Dorrian, Gareth D.; Oksavik, Kjellmar; Yeoman, Timothy; Fogg, Alexandra R.; Coster, Anthea J. (Journal article; Peer reviewed, 2020)
      Polar holes were observed in the high-latitude ionosphere during a series of multi-instrument case studies close to the Northern Hemisphere winter solstice in 2014 and 2015. These holes were observed during geomagnetically ...

    • Plasma free choline, betaine and cognitive performance: the Hordaland Health Study 

      Nurk, Eha; Refsum, Helga; Bjelland, Ingvar; Drevon, Christian A; Tell, Grethe S; Ueland, Per Magne; Vollset, Stein Emil; Engedal, Knut Arne; Nygaard, Harald A.; Smith, David A (Peer reviewed; Journal article, 2013-02)
      Choline and betaine are nutrients involved in one-carbon metabolism. Choline is essential for neurodevelopment and brain function. We studied the associations between cognitive function and plasma concentrations of free ...

    • Plasma Glycine and Risk of Acute Myocardial Infarction in Patients With Suspected Stable Angina Pectoris 

      Ding, Yunpeng; Svingen, Gard Frodahl Tveitevåg; Pedersen, Eva Ringdal; Gregory, Jesse F.; Ueland, Per Magne; Tell, Grethe Seppola; Nygård, Ottar (Peer reviewed; Journal article, 2015)
      Background Glycine is an amino acid involved in antioxidative reactions, purine synthesis, and collagen formation. Several studies demonstrate inverse associations of glycine with obesity, hypertension, and diabetes mellitus. ...

    • Plasma growth differentiation factor-15 is an independent marker for aggressive disease in endometrial cancer 

      Engerud, Hilde Renate; Hope, Kirsten Øvergaard; Berg, Hege Fredriksen; Fasmer, Kristine Eldevik; Tangen, Ingvild Løberg; Haldorsen, Ingfrid S.; Trovik, Jone; Krakstad, Camilla (Peer reviewed; Journal article, 2019)
      Objective: Better biomarkers are needed in order to identify patients with endometrial carcinoma at risk of recurrence and who may profit from a more aggressive treatment regimen. Our objective was to explore the applicability ...

    • Plasma Inflammatory Biomarkers Are Associated With Poststroke Cognitive Impairment: The Nor-COAST Study 

      Sandvig, Heidi Vihovde; Aam, Stina; Alme, Katinka Nordheim; Askim, Torunn; Beyer, Mona K.; Ellekjær, Hanne; Ihle-Hansen, Hege Beathe; Lydersen, Stian; Mollnes, Tom Eirik; Munthe-Kaas, Ragnhild; Næss, Halvor; Saltvedt, Ingvild Tina; Seljeseth, Yngve Müller; Thingstad, Anne Pernille Mæhle; Wethal, Torgeir; Knapskog, Anne Brita (Journal article; Peer reviewed, 2023)
      Background: Inflammation is proposed to be involved in the pathogenesis of poststroke cognitive impairment. The aim of this study was to investigate associations between concentrations of systemic inflammatory biomarkers ...

    • Plasma levels of guanylins are reduced in patients with Crohn’s disease 

      Volkmann, Hilde Løland Von; Brønstad, Ingeborg; Tronstad, Rune Rose; Dizdar, Vernesa; Nylund, Kim; Hanevik, Kurt; Hausken, Trygve; Gilja, Odd Helge; Fiskerstrand, Torunn (Journal article; Peer reviewed, 2020)
      Background: Guanylin (GN) and uroguanylin (UGN) are endogenous ligands for the intestinal receptor guanylate cyclase C (GC-C), an important regulator of intestinal fluid homeostasis. Gene expression and protein levels of ...

    • Plasma levels of interleukin 27 in falciparum malaria is increased independently of co-infection with HIV: potential immune-regulatory role during malaria 

      Otterdal, Kari; Berg, Åse; Michelsen, Annika; Patel, Sam; Gregersen, Ida; Sagen, Ellen Lund; Halvorsen, Bente; Yndestad, Arne; Ueland, Thor; Langeland, Nina; Aukrust, Pål (Journal article; Peer reviewed, 2020)
      Background The immune response during falciparum malaria mediates both harmful and protective effects on the host; however the participating molecules have not been fully defined. Interleukin (IL)-27 is a pleiotropic ...

    • Plasma methionine, choline, betaine, and dimethylglycine in relation to colorectal cancer risk in the European Prospective Investigation into Cancer and Nutrition (EPIC) 

      Nitter, Mathilde Hjelle; Norgård, Benedicte Wentzel; De Vogel, Stefan; Eussen, Simone; Meyer, Klaus; Ulvik, Arve; Ueland, Per Magne; Nygård, Ottar; Vollset, Stein Emil; Bjørge, Tone; Tjønneland, Anne; Hansen, Louise; Boutron-Ruault, Marie-Christine; Racine, Antoine; Cottet, Vanessa; Kaaks, Rudolf; Kühn, Tilman; Trichopoulou, Antonia; Bamia, Christina; Naska, Androniki; Grioni, Sara; Palli, Domenico; Panico, Salvatore; Tumino, Rosario; Vineis, Paolo; Bueno-de-Mesquita, H. Bas; Van Kranen, Henk J.; Peeters, Petra H. M.; Weiderpass, Elisabete; Dorronsoro, Miren; Jakszyn, Paula; Sánchez, María-José; Argüelles, Marcial Vicente; Huerta, José-Maria; Barricarte, Aurelio; Johansson, Matthias; Ljuslinder, Ingrid; Khaw, Kay Tee; Wareham, Nicholas J.; Freisling, Heinz; Duarte-Salles, Talita; Stepien, Magdalena; Gunter, Mark J.; Riboli, Élio B. (Peer reviewed; Journal article, 2014-08)
      Background Disturbances in one carbon metabolism may contribute to carcinogenesis by affecting methylation and synthesis of DNA. Choline and its oxidation product betaine are involved in this metabolism and can serve as ...

    • Plasma methylmalonic acid predicts risk of acute myocardial infarction and mortality in patients with coronary heart disease: A prospective 2-cohort study 

      Dhar, Indu; Lysne, Vegard; Ulvik, Arve; Svingen, Gard Frodahl Tveitevåg; Pedersen, Eva Kristine Ringdal; Bjørnestad, Espen Øglænd; Olsen, Thomas; Borsholm, Robert Andre; Laupsa-Borge, Johnny; Ueland, Per Magne; Tell, Grethe Seppola; Berge, Rolf Kristian; Mellgren, Gunnar; Bønaa, Kaare Harald; Nygård, Ottar Kjell (Journal article; Peer reviewed, 2023)
      Background Elevated plasma methylmalonic acid (MMA) is reported in patients with established coronary heart disease (CHD) and is considered a marker of vitamin B12 deficiency. Moreover, MMA-dependent reactions have been ...

    • Plasma parasitemia as assessed by quantitative PCR in relation to clinical disease severity in African adults with falciparum malaria with and without HIV co-infection 

      Berg, Åse; Patel, Sam; Tellevik, Marit Gjerde; Haanshuus, Christel Gill; Dalen, Ingvild; Otterdal, Kari; Ueland, Thor; Moyo, Sabrina John; Aukrust, Pål; Langeland, Nina (Journal article; Peer reviewed, 2020)
      Purpose When considering malaria disease severity, estimation of parasitemia in erythrocytes is important, but sometimes misleading, since the infected erythrocytes may be sequestered in peripheral capillaries. In African ...

    • Plasma protein biomarkers for the detection of pancreatic neuroendocrine tumors and differentiation from small intestinal neuroendocrine tumors 

      Thiis-Evensen, Espen; Kjellman, Magnus; Knigge, Ulrich; Gronbaek, Henning; Schalin-Jäntti, Camilla; Welin, Staffan; Sorbye, Halfdan; del Pilar Schneider, Maria; Belusa, Roger (Journal article; Peer reviewed, 2022)
      There is an unmet need for novel biomarkers to diagnose and monitor patients with neuroendocrine neoplasms. The EXPLAIN study explores a multi-plasma protein and supervised machine learning strategy to improve the diagnosis ...

    • Plasma proteins elevated in severe asthma despite oral steroid use and unrelated to Type-2 inflammation 

      Mikus, Maria Sparreman; Kolmert, Johan; Andersson, Lars I.; Östling, Jörgen; Knowles, Richard G.; Gómez, Cristina; Ericsson, Magnus; Thörngren, John-Olof; Khoonsari, Payam Emami; Dahlén, Barbro; Kupczyk, Maciej; de Meulder, Bertrand; Auffray, Charles; Bakke, Per S.; Beghe, Bianca; Bel, Elisabeth H.; Caruso, Massimo; Chanez, Pascal; Chawes, Bo; Fowler, Stephen J.; Gaga, Mina; Geiser, Thomas; Gjomarkaj, Mark; Horváth, Ildikó; Howarth, Peter H.; Johnston, Sebastian L.; Joos, Guy; Krug, Norbert; Montuschi, Paolo; Musial, Jacek; Niżankowska-Mogilnicka, Ewa; Olsson, Henric K.; Papi, Alberto; Rabe, Klaus F.; Sandström, Thomas; Shaw, Dominick E.; Siafakas, Nikolaos M.; Uhlén, Mathias; Riley, John H.; Bates, Stewart; Middelveld, Roelinde J.M.; Wheelock, Craig E.; Chung, Kian Fan; Adcock, Ian M.; Sterk, Peter J.; Djukanovic, Ratko; Nilsson, Peter; Dahlén, Sven-Erik; James, Anna (Journal article; Peer reviewed, 2022)
      Rationale Asthma phenotyping requires novel biomarker discovery. Objectives To identify plasma biomarkers associated with asthma phenotypes by application of a new proteomic panel to samples from two well-characterised ...

    • Plasma Retinol and Cardiovascular Disease Mortality in the BECAC Population 

      Brøndbo, Ole Anders (Master thesis, 2014-05-15)
      Background: Observational studies have suggested a possible link between vitamin A and cardiovascular disease mortality risk. However, randomized supplementation trials have failed to show improvement in survival. There ...

    • Plasma tumour necrosis factor correlates with mRNA expression of tumour necrosis factor and mitochondrial transcription factors in skeletal muscle in patients with chronic heart failure treated with cardiac resynchronization therapy: potential role in myopathy 

      Larsen, Alf Inge; Valborgland, Torstein; Ogne, Christer; Lindal, Sigurd; Halvorsen, Bente; Munk, Peter Scott; Kvaløy, Jan Terje; Aukrust, Pål; Yndestad, Arne (Peer reviewed; Journal article, 2019)
      Chronic heart failure (CHF) is characterized by inflammation and skeletal muscle myopathy, including impaired fibre type distribution and reduced capillary density, reduced cytochrome oxidase activity and reduced mitochondrial ...

    • Plasma unmetabolized folic acid in pregnancy and risk of autistic traits and language impairment in antiseizure medication-exposed children of women with epilepsy 

      Husebye, Elisabeth Synnøve Nilsen; Wendel, Annabel Willemijn Karine; Gilhus, Nils Erik; Riedel, Bettina Maria Ingeborg; Bjørk, Marte-Helene (Journal article; Peer reviewed, 2022)
      Background: Fetal exposure to unmetabolized folic acid (UMFA) during pregnancy may be associated with adverse neurodevelopment. Antiseizure medication (ASM) may interact with folate metabolism. Women with epilepsy using ...

    • Plasma-derived exosome-like vesicles are enriched in lyso-phospholipids and pass the blood-brain barrier 

      Jakubec, Martin; Maple-Grødem, Jodi; Akbari, Saleha; Nesse, Susanne; Halskau, Øyvind; Mork-Jansson, Astrid Elisabeth (Journal article; Peer reviewed, 2020)
      Exosomes are vesicles involved in intercellular communication. Their membrane structure and core content is largely dependent on the cell of origin. Exosomes have been investigated both for their biological roles and their ...

    • Plasma-Metanephrines in Patients with Autoimmune Addison’s Disease with and without Residual Adrenocortical Function 

      Åkerman, Anna-Karin; Sævik, Åse Bjorvatn; Thorsby, Per Medbøe; Methlie, Paal; Quinkler, Marcus; Jørgensen, Anders Palmstrøm; Höybye, Charlotte; Debowska, Aleksandra; Nedrebø, Bjørn Gunnar; Dahle, Anne Lise; Carlsen, Siri; Tomkowicz, Aneta; Sollid, Stina Therese; Nermoen, Ingrid; Grønning, Kaja; Dahlqvist, Per; Grimnes, Guri; Skov, Jakob; Finnes, Trine Elisabeth; Wahlberg, Jeanette; Holte, Synnøve Emblem; Simunkova, Katerina; Kämpe, Olle; Husebye, Eystein Sverre; Øksnes, Marianne; Bensing, Sophie (Journal article; Peer reviewed, 2023-05-22)
      Purpose: Residual adrenocortical function, RAF, has recently been demonstrated in one-third of patients with autoimmune Addison’s disease (AAD). Here, we set out to explore any influence of RAF on the levels of plasma ...