• Continuous Infusion of Iohexol to Monitor Perioperative Glomerular Filtration Rate 

      Jakobsen, Kjellbjørn; Eriksen, Bjørn Odvar; Fuskevåg, Ole Martin; Hodges, Stephen John; Ytrebø, Lars Marius Giske (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-05-24)
      Continuous monitoring of the glomerular ltration rate (GFR) in the perioperative setting could provide valuable information about acute kidney injury risk for both clinical and research purposes. ­is pilot study aimed to demonstrate that GFR measurement by a continuous 72 hrs iohexol infusion in patients undergoing colorectal cancer surgery is feasible. Four patients undergoing robot-assisted ...
    • Dopamine agonist serum concentrations and impulse control disorders in Parkinson's disease 

      Staubo, Sara C.; Fuskevåg, Ole Martin; Toft, Mathias; Lie, Ingeborg H.; Alvik, Kirsti Margrete Johansen; Jostad, Pål; Tingvoll, Stein H.; Lilleng, Hallvard; Rosqvist, Kristina; Størset, Elisabet; Odin, Per; Dietrichs, Espen; Dietrichs, Erik Sveberg (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-11-13)
      Background and purpose: Impulse control disorders (ICDs) are common among Parkinson's disease patients using dopamine agonists. We wanted to determine whether ICD patients have higher dopamine agonist serum concentrations than those without any sign of ICD.<p> <p>Methods: Patients who used either pramipexole or ropinirole depot once daily were screened for ICDs using the validated Questionnaire ...
    • How should tranexamic acid be administered in haemorrhagic shock? - continuous serum concentration measurements in a swine model 

      Lynghaug, Trine; Bakke, Håkon Kvåle; Fuskevåg, Ole Martin; Nielsen, Erik Waage; Dietrichs, Erik Sveberg (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-11)
      Background: Tranexamic acid (TXA) reduces mortality in trauma patients. Intramuscular (IM) administration could be advantageous in low-resource and military settings. Achieving the same serum concentration as intravenous (IV) administration is important to achieve equal mortality reduction. Therefore, we aimed to investigate whether dividing an IM dose of TXA between two injection sites and whether ...
    • Intramuscular uptake of tranexamic acid during haemorrhagic shock in a swine model 

      Bakke, Håkon Kvåle; Fuskevåg, Ole Martin; Nielsen, Erik Waage; Dietrichs, Erik Sveberg (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-12-18)
      Background: Tranexamic acid (TXA) reduce mortality in bleeding trauma patients, with greater efect if administered early. Serum concentrations above 10 µg/mL are considered sufcient to inhibit fbrinolysis. Normally administered intravenously (i.v.), TXA can also be administered intramuscularly (i.m.). This could be advantageous in low resource and military settings, if sufcient serum concentrations ...
    • Longitudinal changes in blood biomarkers and their ability to predict type 2 diabetes mellitus—The Tromsø study 

      Allaoui, Giovanni; Rylander, Charlotta; Averina, Maria; Wilsgaard, Tom; Fuskevåg, Ole Martin; Berg, Vivian (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-02-11)
      Introduction: Identification of individuals at high risk of developing type 2 diabetes mellitus (T2DM) is important for early prevention of the disease. Once T2DM is established, it is difficult to treat and is associated with cardiovascular complications and increased mortality. We aimed to describe pre- and post-diagnostic changes in blood biomarker concentrations over 30 years in individuals ...
    • Longitudinal changes in vitamin D concentrations and the association with type 2 diabetes mellitus: the Tromsø Study 

      Allaoui, Giovanni; Rylander, Charlotta; Fuskevåg, Ole Martin; Averina, Maria; Wilsgaard, Tom; Brustad, Magritt; Jorde, Rolf; Berg, Vivian (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-12-02)
      Aim We aimed to investigate the relationship between pre- and post-diagnostic 25-hydroxyvitamin D (25(OH)D) concentrations and type 2 diabetes (T2DM) over a period of 30 years in individuals who developed T2DM compared to healthy controls.<p> <p>Methods This case–control study included 254 participants with blood samples collected at fve diferent time-points (T1–T5) between 1986 and 2016. Of the ...
    • Moderate but not severe hypothermia increases intracellular cyclic AMP through preserved production and reduced elimination 

      Kuzmiszyn, Adrina Kalasho; Selli, Anders Lund; Furuholmen, Markus; Smaglyukova, Natalia; Kondratiev, Timofei; Fuskevåg, Ole Martin; Sager, Georg; Dietrichs, Erik Sveberg (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-01-14)
      Rewarming from accidental hypothermia could be complicated by acute cardiac dysfunction but providing supportive pharmacotherapy at low core temperatures is challenging. Several pharmacological strategies aim to improve cardiovascular function by increasing cAMP in cardiomyocytes as well as cAMP and cGMP levels in vascular smooth muscle, but it is not clear what effects temperature has on cellular ...
    • Nitric Oxide Precursors and Dimethylarginines as Risk Markers for Accelerated Measured GFR Decline in the General Population 

      Rinde, Nikoline Balteskard; Enoksen, Inger Therese Tønsberg; Melsom, Toralf; Fuskevåg, Ole Martin; Eriksen, Bjørn Odvar; Norvik, Jon Viljar Porserud (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-01-19)
      Introduction: Nitric oxide (NO) deficiency is associated with endothelial dysfunction, hypertension, atherosclerosis, and chronic kidney disease (CKD). Reduced NO bioavailability is hypothesized to play a vital role in kidney function impairment and CKD. We investigated the association of serum levels of endogenous inhibitors of NO, asymmetric dimethylarginine (ADMA) and symmetric dimethylargin ...
    • Perioperative infusion of glucagon-like peptide-1 prevents insulin resistance after surgical trauma in female pigs 

      Hagve, Martin Iversen; Gjessing, Petter Fosse; Hole, Mikal Jacob; Jansen, Kirsten M; Fuskevåg, Ole Martin; Mollnes, Tom Eirik; Larsen, Terje S; Irtun, Øivind (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-10-07)
      Insulin resistance is an independent negative predictor of outcome after elective surgery and increases mortality among surgical patients in intensive care. The incretin hormone glucagon-like peptide-1 (GLP-1) potentiates glucose-induced insulin release from the pancreas but may also increase insulin sensitivity in skeletal muscle and directly suppress hepatic glucose release. Here, we investigated ...
    • Pharmacodynamic properties for inhibition of cAMP- and cGMP elimination by pentoxifylline remain unaltered in vitro during hypothermia 

      Selli, Anders Lund; Kalasho, Adrina; Smaglyukova, Natalia; Kondratiev, Timofei; Fuskevåg, Ole Martin; Sager, Georg; Dietrichs, Erik Sveberg (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-12-15)
      Background - Rewarming from hypothermia is associated with severe complications, one of which is hypothermia-induced cardiac dysfunction. This condition is characterized by decreased cardiac output accompanied by increased total peripheral resistance. This contributes to mortality rate approaching 40%. Despite this, no pharmacological interventions are recommended for these patients below 30 °C. ...
    • Pre- and post-diagnostic blood profiles of chlorinated persistent organic pollutants and metabolic markers in type 2 diabetes mellitus cases and controls; a pilot study 

      Berg, Vivian; Charles, Dolley; Bergdahl, Ingvar A.; Nøst, Therese Haugdahl; Sandanger, Torkjel M; Tornevi, Andreas; Huber, Sandra; Fuskevåg, Ole Martin; Rylander, Charlotta (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-02-09)
      Objective - Several risk factors for type 2 diabetes mellitus (T2DM) are also associated with blood concentrations of persistent organic pollutants (POPs), and factors related to the disease may affect POP concentrations, and subsequent associations between POPs and T2DM. The purpose of this pilot study was to investigate the change in concentrations of lipids, hormones and POPs pre- and post-diagnosis ...
    • Sex Differences in Age-Related Loss of Kidney Function 

      Melsom, Toralf; Norvik, Jon Viljar; Enoksen, Inger Therese; Stefansson, Vidar Tor Nyborg; Mathisen, Ulla Dorte; Fuskevåg, Ole Martin; Jenssen, Trond Geir; Solbu, Marit Dahl; Eriksen, Bjørn Odvar (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-09-30)
      Background - CKD is more prevalent in women, but more men receive kidney replacement therapy for kidney failure. This apparent contradiction is not well understood.<p> <p>Methods - We investigated sex differences in the loss of kidney function and whether any sex disparities could be explained by comorbidity or CKD risk factors. In the Renal Iohexol Clearance Survey (RENIS) in northern Europe, ...
    • Transfer of triptans into human breast milk and estimation of infant drug exposure through breastfeeding 

      Amundsen, Siri; Nordeng, Hedvig; Nordeng, Hedvig Marie Egeland; Fuskevåg, Ole Martin; Nordmo, Elisabet; Nordmo, Elisabet N; Sager, Georg; Spigset, Olav (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-03-17)
      Clinical data on the transfer of triptans into human breast milk remain scarce. In a lactation study including 19 breastfeeding women with migraine, we examined the excretion of six different triptans into milk. Following intake of a single dose, each participant collected seven breast milk samples at predefined intervals up to 24 hours after dose. Triptan concentrations in milk were measured using ...
    • Treatment of Cardiovascular Dysfunction with PDE3-Inhibitors in Moderate and Severe Hypothermia—Effects on Cellular Elimination of Cyclic Adenosine Monophosphate and Cyclic Guanosine Monophosphate 

      Kuzmiszyn, Adrina Kalasho; Selli, Anders Lund; Smaglyukova, Natalia; Kondratiev, Timofei; Fuskevåg, Ole Martin; Lysaa, Roy A; Ravna, Aina Westrheim; Tveita, Torkjel; Sager, Georg; Dietrichs, Erik Sveberg (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-07-13)
      <p><b>Introduction:</b> Rewarming from accidental hypothermia is often complicated by hypothermia-induced cardiovascular dysfunction, which could lead to shock. Current guidelines do not recommend any pharmacological treatment at core temperatures below 30°C, due to lack of knowledge. However, previous in vivo studies have shown promising results when using phosphodiesterase 3 (PDE3) inhibitors, ...
    • Treatment of cardiovascular dysfunction with PDE5-inhibitors - temperature dependent effects on transport and metabolism of cAMP and cGMP 

      Selli, Anders Lund; Kuzmiszyn, Adrina Kalasho; Smaglyukova, Natalia; Kondratiev, Timofei V.; Fuskevåg, Ole Martin; Lyså, Roy Andre; Ravna, Aina Westrheim; Tveita, Torkjel; Sager, Georg; Dietrichs, Erik Sveberg (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-07-30)
      <i>Introduction</i>: Cardiovascular dysfunction is a potentially lethal complication of hypothermia. Due to a knowledge gap, pharmacological interventions are not recommended at core temperatures below 30°C. Yet, further cooling is induced in surgical procedures and survival of accidental hypothermia is reported after rewarming from below 15°C, advocating a need for evidence-based treatment guidelines. ...