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  1. Article

    Correction to: Administration of N,N‑dimethyltryptamine (DMT) in psychedelic therapeutics and research and the study of endogenous DMT

    Steven A. Barker in Psychopharmacology (2022)

  2. Article

    Administration of N,N-dimethyltryptamine (DMT) in psychedelic therapeutics and research and the study of endogenous DMT

    As with all drugs, the route, form, and/or dose of a substance administered or applied can play a defining role in its overall pharmacology and use as a therapeutic. This review will focus on these factors as ...

    Steven A. Barker in Psychopharmacology (2022)

  3. Article

    Open Access

    Biosynthesis and Extracellular Concentrations of N,N-dimethyltryptamine (DMT) in Mammalian Brain

    N,N-dimethyltryptamine (DMT), a psychedelic compound identified endogenously in mammals, is biosynthesized by aromatic-L-amino acid decarboxylase (AADC) and indolethylamine-N-methyltransferase (INMT). Whether DMT...

    Jon G. Dean, Tiecheng Liu, Sean Huff, Ben Sheler, Steven A. Barker in Scientific Reports (2019)

  4. No Access

    Article

    On the transmethylation hypothesis: stress, N,N-dimethyltryptamine, and positive symptoms of psychosis

    Past research suggests a relationship between stress and positive symptoms of psychosis. However, the biological substrate of this relationship remains unknown. According to the transmethylation hypothesis, sc...

    Dionysios Grammenos, Steven A. Barker in Journal of Neural Transmission (2015)

  5. No Access

    Protocol

    Use of Matrix Solid-Phase Dispersion for Determining Pesticides in Fish and Foods

    We describe here a method using matrix solid-phase dispersion (MSPD) for the analysis of atrazine, metribuzin, cyanazine, and simazine in fish muscle tissue with a minimal amount of time and solvent consumed. ...

    Steven A. Barker in Pesticide Protocols (2006)

  6. No Access

    Chapter

    Process Chemistry for the Pretreatment of Hanford Tank Wastes

    Methods are being developed to treat and dispose of large volumes of radioactive wastes stored in underground tanks at the U.S. Department of Energy’s (DOE) Hanford Site. Under current guidelines, the high-lev...

    Gregg J. Lumetta, John L. Swanson in Chemical Pretreatment of Nuclear Waste for… (1994)

  7. No Access

    Article

    Comparison of a matrix solid phase dispersion and a classical extraction method for the determination of chlorinated pesticides in fish muscle

    A new multiresidue extraction technique was used to determine incurred chlorinated hydrocarbon pesticide residues in various fish species sampled at 2 locations along the Tensas River in Louisiana. Residue lev...

    Heidi M. Lott, Steven A. Barker in Environmental Monitoring and Assessment (1993)

  8. No Access

    Article

    Separation and spectral data of the six isomeric ozonides from methyl oleate

    The structures of the products obtained on ozonation of methyl oleate have been re-examined. The assignments for the six isomeric ozonides of methyl oleate have been made by1H and13C nuclear magnetic resonance (N...

    Mingdan Wu, Daniel F. Church, Thomas J. Mahier, Steven A. Barker in Lipids (1992)

  9. No Access

    Chapter

    The Application of Matrix Solid Phase Dispersion (MSPD) to the Extraction and Subsequent Analysis of Drug Residues in Animal Tissues

    The contamination of our environment and of our food supply with industrial, agricultural and pharmaceutical agents possessing toxicologic and/or pharmacologic character are major man-made problems that must b...

    Steven A. Barker, Austin R. Long in Analysis of Antibiotic/Drug Residues in Fo… (1992)