Blar i NTNU Open på forfatter "Johnsen, Anne Berit"
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Aerobic interval training partly reverse contractile dysfunction and impaired Ca2+ handling in atrial myocytes from rats with post infarction heart failure
Johnsen, Anne Berit; Høydal, Morten Andre; Røsbjørgen, Ragnhild; Stølen, Tomas; Wisløff, Ulrik (Journal article; Peer reviewed, 2013)Background: There is limited knowledge about atrial myocyte Ca2+ handling in the failing hearts. The aim of this study was to examine atrial myocyte contractile function and Ca2+ handling in rats with post-infarction heart ... -
Atrial Myocyte Function and Ca2+ Handling Is Associated with Inborn Aerobic Capacity
Johnsen, Anne Berit; Rolim, Natale Pinheiro Lage; Stølen, Tomas; Alves, Marcia; Sousa, Mirta; Slupphaug, Geir; Britton, Steven L; Koch, Lauren G; Smith, Godfrey L; Wisløff, Ulrik; Høydal, Morten Andre (Peer reviewed; Journal article, 2013-10-16)Background: Although high aerobic capacity is associated with effective cardiac function, the effect of aerobic capacity on atrial function, especially in terms of cellular mechanisms, is not known. We aimed to investigate ... -
Atrial myocyte structure, function and calcium handling in cardiac disease: Effects of maximal oxygen uptake
Johnsen, Anne Berit (Doktoravhandlinger ved NTNU, 1503-8181; 2014:105, Doctoral thesis, 2014)Atrial function, through its refilling of the ventricles, plays an important role in cardiac performance. The atrial contribution is particularly important during periods of high heart rates, such as during exercise or ... -
Comparison of left versus right atrial myocardium in patients with sinus rhythm or atrial fibrillation - an assessment of mitochondrial function and microRNA expression.
Slagsvold, Katrine Hordnes; Johnsen, Anne Berit; Rognmo, Øivind; Høydal, Morten; Wisløff, Ulrik; Wahba, Alexander (Journal article; Peer reviewed, 2014)Several of the cellular alterations involved in atrial fibrillation (AF) may be linked to mitochondrial function and altered microRNA (miR) expression. A majority of studies on human myocardium involve right atrial (RA) ... -
"Det blir fort fryktelig kaotisk" - En kvalitativ undersøkelse av naturfaglæreres opplevde utfordringer med undervisning om nervesystemet i ungdomsskolen
Reich, Daniel Alexander; Rønnningen, Eskil Kippersund (Master thesis, 2023)Nervesystemets komplekse og avanserte funksjoner gjør nervesystemet til et utfordrende og spennende tema å utforske. Forståelse av hvordan nervesystemet fungerer, gir innsikt i vårt komplekse samspill med verden rundt oss. ... -
"Det blir fort fryktelig kaotisk": En kvalitativ undersøkelse av naturfaglæreres opplevde utfordringer med undervisning om nervesystemet i ungdomsskolen
Reich, Daniel Alexander; Rønningen, Eskil Kippersund (Master thesis, 2023)Nervesystemets komplekse og avanserte funksjoner gjør nervesystemet til et utfordrende og spennende tema å utforske. Forståelse av hvordan nervesystemet fungerer, gir innsikt i vårt komplekse samspill med verden rundt oss. ... -
Exercise training reduces resting heart rate via downregulation of the funny channel HCN4
D'Sousa, Alicia; Bucchi, Annalisa; Johnsen, Anne Berit; Logantha, Sunil; Monfredi, Oliver; Yanni, Joseph; Prehar, Sukhal; Hart, George; Cartwright, Elisabeth; Wisløff, Ulrik; Dobryznski, Halina; DiFrancesco, Dario; Morris, Gwilym; Boyett, Mark (Journal article; Peer reviewed, 2014)Endurance athletes exhibit sinus bradycardia, that is a slow resting heart rate, associated with a higher incidence of sinus node (pacemaker) disease and electronic pacemaker implantation. Here we show that training-induced ...