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Ralf Kellmann's picture

Ralf Kellmann

Researcher
  • E-mailRalf.Kellmann@uib.no
  • Visitor Address
    Haukeland universitetssykehus, Laboratoriebygget
    5009 Bergen
  • Postal Address
    Postboks 7804
    5020 Bergen
Academic article
  • Show author(s) (2021). Bedtime Salivary Cortisol as a Screening Test for Cushing Syndrome in Children. Journal of the Endocrine Society (JES). 1-8.
  • Show author(s) (2020). Heterologous expression of an unusual ketosynthase, SxtA, leads to production of saxitoxin intermediates in Escherichia coli. ChemBioChem. 1-6.
  • Show author(s) (2020). An ultrasensitive routine LC-MS/MS method for estradiol and estrone in the clinically relevant sub-picomolar range. Journal of the Endocrine Society (JES). 1-15.
  • Show author(s) (2018). The short cosyntropin test revisited: new normal reference range using LC-MS/MS. Journal of Clinical Endocrinology and Metabolism (JCEM). 1696-1703.
  • Show author(s) (2018). LC-MS/MS based profiling and dynamic modelling of the steroidogenesis pathway in adrenocarcinoma H295R cells. Toxicology in Vitro. 332-341.
  • Show author(s) (2018). Effects of defined mixtures of POPs and endocrine disruptors on the steroid metabolome of the human H295R adrenocortical cell line. Chemosphere. 328-339.
  • Show author(s) (2017). Simultaneous assay of cortisol and dexamethasone improved diagnostic accuracy of the dexamethasone suppression test. European Journal of Endocrinology (EJE). 705-713.
  • Show author(s) (2016). Low β2-adrenergic receptor level may promote development of castration resistant prostate cancer and altered steroid metabolism . OncoTarget. 1878-1894.
  • Show author(s) (2011). sxtA-Based Quantitative Molecular Assay To Identify Saxitoxin-Producing Harmful Algal Blooms in Marine Waters. Applied and Environmental Microbiology. 7050-7057.
  • Show author(s) (2011). Discovery of Nuclear-Encoded Genes for the Neurotoxin Saxitoxin in Dinoflagellates. PLOS ONE.
  • Show author(s) (2010). On the chemistry, toxicology and genetics of the cyanobacterial toxins, microcystin, nodularin, saxitoxin and cylindrospermopsin. Marine Drugs. 1650-1680.
  • Show author(s) (2009). Proteomic response of human neuroblastoma cells to azaspiracid-1. Journal of Proteomics. 695-707.
  • Show author(s) (2009). Characterisation of the paralytic shellfish toxin biosynthesis gene clusters in Anabaena circinalis AWQC131C and Aphanizomenon sp. NH-5. BMC Biochemistry.
  • Show author(s) (2008). Identification of a Saxitoxin Biosynthesis Gene with a History of Frequent Horizontal Gene Transfers. Journal of Molecular Evolution. 526-538.
  • Show author(s) (2008). Characterization of the Gene Cluster responsible for Cylindrospermopsin Biosynthesis. Applied and Environmental Microbiology. 716-722.
  • Show author(s) (2008). Biosynthetic intermediate analysis and functional homology reveal a saxitoxin gene cluster in cyanobacteria. Applied and Environmental Microbiology. 4044-4053.
  • Show author(s) (2007). Biochemical characterisation of paralytic shellfish toxin biosynthesis in vitro. Journal of Phycology. 497-508.
Academic lecture
  • Show author(s) (2011). Discovery of nucelar-encoded genes for the neurotoxin saxitoxin in dinoflagellates.
  • Show author(s) (2011). Discovery of nucelar-encoded genes for the neurotoxin saxitoxin in dinoflagellates.
  • Show author(s) (2009). Saxitoxin biosynthesis in organisms from two kingdoms - horizontal gene transfer or parallel evolution?
  • Show author(s) (2008). Evolution witihin the genus Alexandrium focusing on toxicity.
  • Show author(s) (2007). Alkaloid toxin production by cyanobacteria.
Poster
  • Show author(s) (2010). Saxitoxin gene identified in dinoflagellates.
  • Show author(s) (2008). Protein expression changes in human neuroblastoma cells treated with azaspiracid-1.
Errata
  • Show author(s) (2009). Identification of a Saxitoxin Biosynthesis Gene with a History of Frequent Horizontal Gene Transfers (vol 67, pg 526, 2008). Journal of Molecular Evolution. 292-292.
Academic literature review
  • Show author(s) (2010). Biosynthesis and Molecular Genetics of Polyketides in Marine Dinoflagellates. Marine Drugs. 1011-1048.

More information in national current research information system (CRIStin)