Academic article

• Røys, Eirik Åsen; Viste, Kristin; Farrell, Christopher John et al. (2025). A Parametric Empirical Bayes Approach to Personalized Reference Intervals and Reference Change Values. (external link)
• Røys, Eirik Åsen; Viste, Kristin; Kellmann, Ralf et al. (2025). Estimating Reference Change Values Using Routine Patient Data: A Novel Pathology Database Approach. (external link)
• Røys, Eirik Åsen; Guldhaug, Nora Alicia; Viste, kristin et al. (2023). Sex Hormones and Adrenal Steroids: Biological Variation Estimated Using Direct and Indirect Methods. (external link)
• Ueland, Grethe Åstrøm; Kellmann, Ralf; Jørstad, Melissa Davidsen et al. (2021). Bedtime Salivary Cortisol as a Screening Test for Cushing Syndrome in Children. (external link)
• Soeriyadi, Angela H.; Mazmouz, Rabia; Pickford, Russell et al. (2020). Heterologous expression of an unusual ketosynthase, SxtA, leads to production of saxitoxin intermediates in Escherichia coli. (external link)
• Bertelsen, Bjørn-Erik; Kellmann, Ralf; Viste, Kristin et al. (2020). An ultrasensitive routine LC-MS/MS method for estradiol and estrone in the clinically relevant sub-picomolar range. (external link)
• Ueland, Grethe Åstrøm; Methlie, Paal; Øksnes, Marianne et al. (2018). The short cosyntropin test revisited: new normal reference range using LC-MS/MS. (external link)
• Ahmed, Kareem Eldin Mohammed; Frøysa, Håvard G; Karlsen, Odd Andre et al. (2018). Effects of defined mixtures of POPs and endocrine disruptors on the steroid metabolome of the human H295R adrenocortical cell line. (external link)
• Eldin, Mohammed Adhmed Abdel Ghafar Kareem; Frøysa, Håvard G; Karlsen, Odd Andre et al. (2018). LC-MS/MS based profiling and dynamic modelling of the steroidogenesis pathway in adrenocarcinoma H295R cells. (external link)
• Ueland, Grethe Åstrøm; Methlie, Paal; Kellmann, Ralf et al. (2017). Simultaneous assay of cortisol and dexamethasone improved diagnostic accuracy of the dexamethasone suppression test. (external link)
• Braadland, Peder; Grytli, Helene Hartvedt; Ramberg, Håkon Andre et al. (2016). Low β2-adrenergic receptor level may promote development of castration resistant prostate cancer and altered steroid metabolism. (external link)
• Stüken, Anke Corinna; Orr, Russell; Kellmann, Ralf et al. (2011). Discovery of Nuclear-Encoded Genes for the Neurotoxin Saxitoxin in Dinoflagellates. (external link)
• Murray, Shauna A.; Wiese, Maria; Stüken, Anke et al. (2011). sxtA-Based Quantitative Molecular Assay To Identify Saxitoxin-Producing Harmful Algal Blooms in Marine Waters. (external link)
• Pearson, Leanne; Mihali, Troco K.; Moffitt, Michelle et al. (2010). On the chemistry, toxicology and genetics of the cyanobacterial toxins, microcystin, nodularin, saxitoxin and cylindrospermopsin. (external link)
• Kellmann, Ralf; Schaffner, Carlos António Markus; Grønset, Toril Anne et al. (2009). Proteomic response of human neuroblastoma cells to azaspiracid-1. (external link)
• Mihali, Troco Kaan; Kellmann, Ralf; Neilan, Brett A. (2009). Characterisation of the paralytic shellfish toxin biosynthesis gene clusters in Anabaena circinalis AWQC131C and Aphanizomenon sp. NH-5. (external link)
• Kellmann, Ralf; Mihali, Troco Kaan; Neilan, Brett A. (2008). Identification of a Saxitoxin Biosynthesis Gene with a History of Frequent Horizontal Gene Transfers. (external link)
• Kellmann, Ralf; Mihali, Troco Kaan; Jeon, Young Jae et al. (2008). Biosynthetic intermediate analysis and functional homology reveal a saxitoxin gene cluster in cyanobacteria. (external link)
• Mihali, Troco Kaan; Kellmann, Ralf; Muenchhoff, Julia et al. (2008). Characterization of the Gene Cluster responsible for Cylindrospermopsin Biosynthesis. (external link)
• Kellmann, Ralf; Neilan, Brett A. (2007). Biochemical characterisation of paralytic shellfish toxin biosynthesis in vitro. (external link)

Reader opinion piece

• Røys, Eirik Åsen; Viste, kristin; Farrell, Christopher-John et al. (2024). Refining within-subject biological variation estimation using routine laboratory data: Practical applications of the refineR algorithm. (external link)

Academic lecture

• Stüken, Anke; Orr, Russell; Kellmann, Ralf et al. (2011). Discovery of nucelar-encoded genes for the neurotoxin saxitoxin in dinoflagellates. (external link)
• Stüken, Anke; Orr, Russell; Kellmann, Ralf et al. (2011). Discovery of nucelar-encoded genes for the neurotoxin saxitoxin in dinoflagellates. (external link)
• Kellmann, Ralf; Neilan, Brett A.; Fladmark, Kari Espolin et al. (2009). Saxitoxin biosynthesis in organisms from two kingdoms - horizontal gene transfer or parallel evolution?. (external link)
• Orr, Russell; Espelund, Mari; Kellmann, Ralf et al. (2008). Evolution witihin the genus Alexandrium focusing on toxicity. (external link)
• Kellmann, Ralf (2007). Alkaloid toxin production by cyanobacteria. (external link)

Poster

• Stüken, Anke; Orr, Russell; Kellmann, Ralf et al. (2010). Saxitoxin gene identified in dinoflagellates. (external link)
• Kellmann, Ralf; Grønset, Toril A; Schaffner, Carlos a.m. et al. (2008). Protein expression changes in human neuroblastoma cells treated with azaspiracid-1. (external link)

Academic literature review

• Kellmann, Ralf; Stüken, Anke; Orr, Russell J. S. et al. (2010). Biosynthesis and Molecular Genetics of Polyketides in Marine Dinoflagellates. (external link)

Errata

• Kellmann, Ralf; Mihali, Troco Kaan; Neilan, Brett Adam (2009). Identification of a Saxitoxin Biosynthesis Gene with a History of Frequent Horizontal Gene Transfers (vol 67, pg 526, 2008). (external link)

See a complete overview of publications in Cristin.