Blar i Bergen Open Research Archive på forfatter "Berg, Jon Andsnes"
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Cross-reactivity of the CEDIA buprenorphine assay in drugs-of-abuse screening: influence of dose and metabolites of opioids
Berg, Jon Andsnes; Schjøtt, Jan; Fossan, Kjell Ove; Riedel, Bettina (Peer reviewed; Journal article, 2015-10-28)Purpose: The cloned enzyme donor immunoassay (CEDIA) for buprenorphine is applied for both urine drugs-of-abuse screening and compliance monitoring. Sensitivity, specificity, and optimal cutoff of this assay have differed ... -
Distribution of psychotropic drugs into lipoproteins
Serkland, Trond T.; Schjøtt, Jan; Berg, Jon Andsnes; Herfindal, Lars; Riedel, Bettina; Skrede, Silje (Peer reviewed; Journal article, 2019)Aim: The aim of this pilot study was to investigate whether psychotropic drugs frequently analyzed in a routine therapeutic drug monitoring laboratory bind to low-density lipoproteins/very-low-density lipoproteins (LDL/VLDL) ... -
Illicit substances detected through high-resolution MS analysis in urine samples are associated with greater symptom burden in patients with psychosis
Skrede, Silje; Berg, Jon Andsnes; Fossan, Kjell Ove; Bartz-Johannessen, Christoffer; Løberg, Else-Marie; Kroken, Rune Andreas; Johnsen, Erik (Journal article, 2021)Background The prevalence of new psychoactive substances (NPS) in acute psychotic patients has not been investigated systematically. We applied a highly sensitive and specific mass spectrometry method for detection of NPS ...