Blar i Bergen Open Research Archive på forfatter "Bertelsen, Bjørn-Erik"
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Blood steroid levels predict survival in endometrial cancer and reflect tumor estrogen signaling
Forsse, David Erik; Tangen, Ingvild Løberg; Fasmer, Kristine Eldevik; Halle, Mari Kyllesø; Viste, Kristin; Almås, Bjørg; Bertelsen, Bjørn-Erik; Trovik, Jone; Haldorsen, Ingfrid S.; Krakstad, Camilla (Peer reviewed; Journal article, 2020-02)Objective Blood-based biomarkers are attractive due to ease of sampling and standardized measurement technology, reducing obstacles to clinical implementation. The objective of this study was to evaluate a clinically ... -
Hormone references for ultrasound breast staging and endocrine profiling to detect female onset of puberty
Madsen, Andre; Bruserud, Ingvild Særvold; Bertelsen, Bjørn-Erik; Roelants, Mathieu; Oehme, Ninnie; Viste, Kristin; Bjerknes, Robert; Almås, Bjørg; Rosendahl, Karen; Mellgren, Gunnar; Sagen, Jørn V.; Juliusson, Petur Benedikt (Journal article; Peer reviewed, 2020)Context Application of ultrasound (US) to evaluate attainment and morphology of glandular tissue provides a new rationale for evaluating onset and progression of female puberty, but currently no hormone references complement ... -
Importance of endocrine treatment adherence and persistence in breast cancer survivorship: a systematic review
Eliassen, Finn; Blåfjelldal, Vibeke; Helland, Thomas; Hjorth, Cathrine Fonnesbech; Hølland, Kari; Lode, Lise; Bertelsen, Bjørn-Erik; Janssen, Emiel; Mellgren, Gunnar; Kvaløy, Jan Terje; Søiland, Håvard; Lende, Tone Hoel (Journal article; Peer reviewed, 2023)Purpose Adjuvant endocrine treatment is essential for treating luminal subtypes of breast cancer, which constitute 75% of all breast malignancies. However, the detrimental side effects of treatment make it difficult for ... -
Simultaneous Quantification of Aromatase Inhibitors and Estrogens in Postmenopausal Breast Cancer Patients
Bertelsen, Bjørn-Erik; Viste, Kristin; Helland, Thomas; Hagland, Magnus; Søiland, Håvard; Geisler, Jürgen; Lende, Tone Hoel; Lønning, Per Eystein; Sagen, Jørn Vegard; Mellgren, Gunnar; Almås, Bjørg (Journal article; Peer reviewed, 2021)Context Currently there are no assays that can simultaneously quantify serum levels of the third-generation aromatase inhibitors (AIs): letrozole, anastrozole, and exemestane, and the ultra-low levels of estrogens in ...