Researcher Profile

Researcher Profile

Joshua Kellogg

Joshua Kellogg

Assistant Professor, Veterinary and Biomedical Sciences
Scientific Program:Mechanisms of Carcinogenesis

Research Interests

  • Metabolomics
  • Hydrastis
  • Biological Products
  • Mass Spectrometry
  • Camellia sinensis
  • Tea
  • Seaweed
  • Datasets
  • In Vitro Techniques
  • Biological Assay
  • Liquid Chromatography
  • Dietary Supplements

Recent Publications


Wallace, ED, Todd, DA, Harnly, JM, Cech, NB & Kellogg, JJ 2020, 'Identification of adulteration in botanical samples with untargeted metabolomics', Analytical and Bioanalytical Chemistry, vol. 412, no. 18, pp. 4273-4286.
Liigand, J, Wang, T, Kellogg, J, Smedsgaard, J, Cech, N & Kruve, A 2020, 'Quantification for non-targeted LC/MS screening without standard substances', Scientific reports, vol. 10, no. 1, 5808.


Curtin, P, Kellogg, J, Cech, N & Gennings, C 2019, 'A random subset implementation of weighted quantile sum (WQSRS) regression for analysis of high-dimensional mixtures', Communications in Statistics: Simulation and Computation.
Kellogg, JJ, Kvalheim, OM & Cech, NB 2020, 'Composite score analysis for unsupervised comparison and network visualization of metabolomics data', Analytica Chimica Acta, vol. 1095, pp. 38-47.
Caesar, LK, Kellogg, JJ, Kvalheim, OM & Cech, NB 2019, 'Opportunities and Limitations for Untargeted Mass Spectrometry Metabolomics to Identify Biologically Active Constituents in Complex Natural Product Mixtures', Journal of Natural Products, vol. 82, no. 3, pp. 469-484.
Kellogg, JJ, Paine, MF, McCune, JS, Oberlies, NH & Cech, NB 2019, 'Selection and characterization of botanical natural products for research studies: A NaPDI center recommended approach', Natural Product Reports, vol. 36, no. 8, pp. 1196-1221.


Britton, ER, Kellogg, JJ, Kvalheim, OM & Cech, NB 2018, 'Biochemometrics to Identify Synergists and Additives from Botanical Medicines: A Case Study with Hydrastis canadensis (Goldenseal)', Journal of Natural Products, vol. 81, no. 3, pp. 484-493.
Wallace, ED, Oberlies, NH, Cech, NB & Kellogg, JJ 2018, 'Detection of adulteration in Hydrastis canadensis (goldenseal) dietary supplements via untargeted mass spectrometry-based metabolomics', Food and Chemical Toxicology, vol. 120, pp. 439-447.
Tian, DD, Kellogg, JJ, Okut, N, Oberlies, NH, Cech, NB, Shen, DD, McCune, JS & Paine, MF 2018, 'Identification of intestinal UDP-Glucuronosyltransferase inhibitors in green tea (Camellia sinensis) using a biochemometric approach: Application to raloxifene as a test drug via in vitro to in vivo extrapolation', Drug Metabolism and Disposition, vol. 46, no. 5, pp. 552-560.
Caesar, LK, Kellogg, JJ, Kvalheim, OM, Cech, RA & Cech, NB 2018, 'Integration of Biochemometrics and Molecular Networking to Identify Antimicrobials in Angelica keiskei', Planta Medica, vol. 84, no. 9-10, B1077, pp. 721-728.


Kellogg, JJ, Graf, TN, Paine, MF, McCune, JS, Kvalheim, OM, Oberlies, NH & Cech, NB 2017, 'Comparison of Metabolomics Approaches for Evaluating the Variability of Complex Botanical Preparations: Green Tea (Camellia sinensis) as a Case Study', Journal of Natural Products, vol. 80, no. 5, pp. 1457-1466.
Kellogg, JJ, Wallace, ED, Graf, TN, Oberlies, NH & Cech, NB 2017, 'Conventional and accelerated-solvent extractions of green tea (camellia sinensis) for metabolomics-based chemometrics', Journal of Pharmaceutical and Biomedical Analysis, vol. 145, pp. 604-610.
Kellogg, JJ & Raja, HA 2017, 'Endolichenic fungi: a new source of rich bioactive secondary metabolites on the horizon', Phytochemistry Reviews, vol. 16, no. 2, pp. 271-293.


Egan, JM, Kaur, A, Raja, HA, Kellogg, JJ, Oberlies, NH & Cech, NB 2016, 'Antimicrobial fungal endophytes from the botanical medicine goldenseal (Hydrastis canadensis)', Phytochemistry Letters, vol. 17, pp. 219-225.
Kellogg, JJ, Todd, DA, Egan, JM, Raja, HA, Oberlies, NH, Kvalheim, OM & Cech, NB 2016, 'Biochemometrics for Natural Products Research: Comparison of Data Analysis Approaches and Application to Identification of Bioactive Compounds', Journal of Natural Products, vol. 79, no. 2, pp. 376-386.

Clinical Trials Search

Children (age < 18 years)
Adults (age >= 18 years)