Blar i HV - Institutt for naturvitenskapelige helsefag på utgivelsesdato

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    • Impact of the anode heel effect on image quality and effective dose for AP pelvis: a pilot study 

      Buissink, Carst; Bowdler, Matt; Abdullah, A; Al-Murshedi, S; Custódio, S; Huhn, Andrea; Jorge, Jose; Ali, Mohammed; Peters, Annastagia Lily; Robin, Rey Yohan; Urdahl, Therese Kristin; Hogg, Peter (Chapter; Peer reviewed, 2017)
      Purpose: Using phantoms, this pilot study aims to outline a method and generate initial data to determine whether the anode heel effect has an impact on image quality and the effective dose. Methods and Materials: A ...

    • Respiratory motion during 90Yttrium PET contributes to underestimation of tumor dose and overestimation of normal liver tissue dose. 

      Ausland, Line; Revheim, Mona-Elisabeth; Skretting, Arne; Stokke, Caroline (Journal article; Peer reviewed, 2017)
      Background Yttrium-90 dosimetry after radioembolization is reliant on accurate quantitative imaging of the microsphere deposition. Previous studies have focused on the correction of geometrical resolution effects. Pu ...

    • Can the use of assistive technology and interactive therapeutic robots in nursing homes contribute to the spread of infectious disease? 

      Klein, Jörn; Hjeltnes, Bjarne; Tunsjø, Hege; Charnock, Colin (Canadian Journal of Infection Control;Volume 32, Number 4, Journal article; Peer reviewed, 2017)
      Background: There is an increasing use of assistive technology and interactive therapeutic robots in nursing homes. However, little is known about the possible risks for transmitting infectious diseases through the use ...

    • Compression forces used in the Norwegian Breast Cancer Screening Program 

      Wåde, Gunvor Gipling; Moshina, Nataliia; Sebuødegård, Sofie; Hogg, Peter; Hofvind, Solveig (Journal article; Peer reviewed, 2017)
      Objective: Compression is used in mammography to reduce breast thickness, which is claimed to improve image quality and reduce radiation dose. In the Norwegian Breast Cancer Screening Program (NBCSP), the recommended ...

    • Profesjonsrettet lærerutdanning for yrkesfag - dagens undervisning og opplevelse av relevans 

      Sylte, Ann Lisa; Jahanlu, David (Journal article; Peer reviewed, 2017)
      En av de viktigste utfordringene i å forebygge høyt drop-out i skolen er "relevans i utdanningen". Mangelen på sammenheng mellom teori og praksis, kan føre til økende frafall i både yrkesfag- og profesjonsutdanninger, som ...

    • Fatigue During and After Breast Cancer Therapy—A Prospective Study 

      Reinertsen, Kristin Valborg; Engebråten, Olav; Loge, Jon Håvard; Småstuen, Milada Cvancarova; Naume, Bjørn; Wist, Erik; Edvardsen, Hege; Wille, Elisabeth; Bjøro, Trine; Kiserud, Cecilie E. (Journal article; Peer reviewed, 2017)
      Context Chronic fatigue (CF) in breast cancer (BC) survivors is multifactorial and may be caused by immune activation triggered by BC or its treatment. In the Neoadjuvant Avastin in Breast Cancer study, BC patients ...

    • To really know them you have to grow them 

      Charnock, Colin; Tunsjø, Hege; Hjeltnes, Bjarne (Journal article; Peer reviewed, 2017)
      Bakgrunn: Kun en liten andel av bakteriene i komplekse miljøer som jord, vann og sedimenter lar seg dyrke på syntetiske medier. Identifisering av flere bakterier vil gi ny viten om biosfærens samlede genetiske og ...

    • miRNAs associated with immune response in teleost fish 

      Andreassen, Rune; Høyheim, Bjørn (Journal article; Peer reviewed, 2017)
      MicroRNAs (miRNAs) have been identified as important post transcriptional regulators of gene expression. In higher vertebrates, a subset of miRNAs has been identified as important regulators of a number of key genes in ...

    • Sædanalysen 

      Witczak, Oliwia; Evensen, Herman Sebastian Folkestad; Andersen, Jorunn Marie; Herning, Hilde; Haugen, Trine B. (Academic article, 2017)
      Bakgrunn: Sædanalysen er et viktig verktøy i utredningen av ufrivillig barnløshet. Standard sædanalyse inkluderer spermiekonsentrasjon, totalt antall spermier, spermiemotilitet og spermiemorfologi. Analysen er basert på ...

    • The impact of pitch values on image quality and radiation dose in an abdominal adult phantom using CT 

      Lança, Luis; Barros, Pietro; Løvlien, Ine M.; Derech, Rodrigo D’Agostini; Higgins, Daniel; Kleiker, Marjolein; McNally, Kevin; Thevenaz, Manon; Hogg, Peter; Liardet, Sebastien (Chapter; Peer reviewed, 2017)
      Purpose: To identify the impact of different pitch values on image quality and effective radiation dose for axial and coronal plane in abdominal adult CT. Methods and materials: Three scans were conducted on an abdominal ...

    • Seasonal fluctuation in the secretion of the antioxidant melatonin is not associated with alterations in sperm DNA damage 

      Malm, Gunilla; Haugen, Trine B.; Rylander, Lars; Giwercman, Aleksander (Asian Journal of Andrology;Volume 19, Issue 1, Journal article; Peer reviewed, 2017-01)
      A high sperm DNA fragmentation index (DFI) is associated with reduced fertility. DFI is influenced by the balance between reactive oxygen species and antioxidants. A circannual variation in melatonin, an antioxidant and ...

    • Identification of 19 new risk loci and potential regulatory mechanisms influencing susceptibility to testicular germ cell tumor 

      Litchfield, Kevin; Levy, Max; Orlando, Giulia; Loveday, Chey; Law, Philip J.; Migliorini, Gabriele; Holroyd, Amy; Broderick, Peter; Karlsson, Robert; Haugen, Trine B.; Kristiansen, Wenche; Nsengimana, Jérémie; Fenwick, Kerry; Assiotis, Ioannis; Kote-Jarai, Zsofia; Dunning, Alison M.; Muir, Kenneth; Peto, Julian; Eeles, Rosalind; Easton, Douglas F.; Dudakia, Darshna; Orr, Nick; Pashayan, Nora; Bishop, D. Timothy; Reid, Alison; Huddart, Robert A.; Shipley, Janet; Grotmol, Tom; Wiklund, Fredrik; Houlston, Richard S.; Turnbull, Clare (Nature Genetics;Volume 49, Issue 7, Journal article; Peer reviewed, 2017-06-12)
      Genome-wide association studies (GWAS) have transformed our understanding of testicular germ cell tumour (TGCT) susceptibility but much of the heritability remains unexplained. Here we report a new GWAS, a meta-analysis ...

    • Meta-analysis of five genome-wide association studies identifies multiple new loci associated with testicular germ cell tumor 

      Wang, Zhaoming; McGlynn, Katherine A.; Rajpert-De Meyts, Ewa; Bishop, D. Timothy; Chung, Charles C.; Dalgaard, Marlene D.; Greene, Mark H.; Gupta, Ramneek; Grotmol, Tom; Haugen, Trine B.; Karlsson, Robert; Litchfield, Kevin; Mitra, Nandita; Nielsen, Kasper; Pyle, Louise C.; Schwartz, Stephen M.; Thorsson, Vesteinn; Vardhanabhuti, Saran; Wiklund, Fredrik; Turnbull, Clare; Chanock, Stephen J.; Kanetsky, Peter A.; Nathanson, Katherine L. (Nature Genetics;Volume 49, Issue 7, Journal article; Peer reviewed, 2017-06-12)
      The international TEsticular CAncer Consortium (TECAC) combined five published genome-wide association studies of testicular germ cell tumors (TGCT; 3,558 cases and 13,970 controls) to identify novel susceptibility loci. ...

    • Menopausal hormone therapy and risk of melanoma: Do estrogens and progestins have a different role? 

      Botteri, Edoardo; Støer, Nathalie; Sakshaug, Solveig; Graff-Iversen, Sidsel; Vangen, Siri; Hofvind, Solveig; Ursin, Giske; Weiderpass, Elisabete (International Journal of Cancer;Volume 141, Issue 9, Journal article; Peer reviewed, 2017-11-01)
      The association between use of menopausal hormone therapy (HT) and occurrence of skin malignant melanoma (SMM) is controversial. We investigated the issue in a nationwide cohort of 684,696 Norwegian women, aged 45-79 ...

    • Menopausal hormone therapy and colorectal cancer: a linkage between nationwide registries in Norway. 

      Botteri, Edoardo; Støer, Nathalie Charlotte; Sakshaug, Solveig; Graff-Iversen, Sidsel; Vangen, Siri; Hofvind, Solveig; de Lange, Thomas; Bagnardi, Vincenzo; Ursin, Giske; Weiderpass, Elisabete (BMJ Open;Volume 7, Issue 11, Journal article; Peer reviewed, 2017-11-15)
      Objectives: With the present study, we aimed to investigate the association between menopausal hormone therapy (HT) and risk of colorectal cancer (CRC). Setting: Cohort study based on the linkage of Norwegian population-based ...

    • Hvor robust er samsvaret mellom respondering på matching-to-sample tester og sorteringstester? 

      Bevolden, Kristiane Rustad; Arntzen, Erik (Norsk tidsskrift for atferdsanalyse;Nummer 2 (VINTER 2018), Journal article; Peer reviewed, 2018)
      Formålet med dette eksperimentet var å undersøke om samsvaret mellom resultatene på en matching-to-sample (MTS) test og sorteringstester også er gjeldende ved bruk en Many-to-One (MTO) treningsstruktur. Vi ønsket å gjøre ...

    • Reference ranges for antiepileptic drugs revisited: a practical approach to establish national guidelines 

      Reimers, Arne; Berg, Jon Andsnes; Burns, Margrete Larsen; Brodtkorb, Eylert; Johannessen, Svein Ivar; Landmark, Cecilie Johannessen (Journal article; Peer reviewed, 2018)
      Background and objective: Laboratories sometimes use different reference ranges for the same antiepileptic drug (AED), particularly for new and poorly investigated drugs. This may contribute to misunderstandings, concerns ...

    • Discovery of microRNAs associated with the antiviral immune response of Atlantic cod macrophages 

      Eslamloo, Khalil; Inkpen, Sabrina; Rise, Matthew L.; Andreassen, Rune (Journal article; Peer reviewed, 2018)
      MicroRNAs (miRNAs) are known to play important immunoregulatory roles in teleosts, although miRNAs involved in the antiviral immune response of Atlantic cod (Gadus morhua) were previously uncharacterised. Using deep ...

    • Analysis of image quality and effective dose in adult chest phantom radiography with high BMI. 

      Sanderud, Audun; Aymon, Emmanuel; Burke, Andrea M.; Dijkstra, Susanne; Fosskaug, Julie; Silva, Andreia; Soares, Flavio Augusto (OPTIMAX 2017: Radiation dose, image quality optimisation, the use of new technology in medical imaging;, Chapter; Peer reviewed, 2018)
      Aim: To investigate the impact of different kVp and mAs values on effective dose and image quality using a chest phantom that simulates a normal sized and an obese patient. Methods and materials: A chest phantom with ...

    • Knockdown of SPRY4 and SPRY4-IT1 inhibits cell growth and phosphorylation of Akt in human testicular germ cell tumours 

      Das, Mrinal Kumar; Furu, Kari; Evensen, Herman Sebastian Folkestad; Haugen, Øyvind Pernell; Haugen, Trine B. (Scientific Reports;Volume 8, Article number: 2462 (2018), Journal article; Peer reviewed, 2018-02-06)
      Testicular germ cell tumour (TGCT) is the most common cancer in young men in large parts of the world, but the aetiology is mainly unknown. Genome-wide association studies have so far identified about 50 susceptibility ...