• Publications
  • Influence
The comparative metabolism of the mollicutes (Mycoplasmas): the utility for taxonomic classification and the relationship of putative gene annotation and phylogeny to enzymatic function in the
Mollicutes or mycoplasmas are a class of wall-less bacteria descended from low G + C% Gram-positive bacteria. Some are exceedingly small, about 0.2 micron in diameter, and are examples of theExpand
Cyclooxygenase-2-mediated DNA Damage*
Rat intestinal epithelial cells that express the cyclooxygenase-2 (COX-2) gene permanently (RIES cells) were used as a model of in vivo oxidative stress. A targeted lipidomics approach showed thatExpand
Comparative metabolism of Mesoplasma, Entomoplasma, Mycoplasma, and Acholeplasma.
Cytoplasmic fractions from species of the Mollicutes genera Entomoplasma, Mesoplasma, Mycoplasma, and Acholeplasma were assayed for NADH oxidase (NADH ox), ATP- and PPi-dependent phosphofructokinaseExpand
Production of Brominating Intermediates by Myeloperoxidase
The existence of interhalogen compounds was proposed more than a century ago, but no biological roles have been attributed to these highly oxidizing intermediates. In this study, we determinedExpand
Identification of the Major Oxidative 3α-Hydroxysteroid Dehydrogenase in Human Prostate That Converts 5α-Androstane-3α,17β-diol to 5α-Dihydrotestosterone: A Potential Therapeutic Target for
Androgen-dependent prostate diseases initially require 5α-dihydrotestosterone (DHT) for growth. The DHT product 5α-androstane-3α,17β-diol (3α-diol), is inactive at the androgen receptor (AR), butExpand
Targeted lipidomics using electron capture atmospheric pressure chemical ionization mass spectrometry.
There is an increasing need to be able to conduct quantitative lipidomics analyses as a complement to proteomics studies. The highest specificity for proteomics analysis can be obtained usingExpand
Reactive carbonyl formation by oxidative and non-oxidative pathways.
The spectrophotometric protein carbonyl assay is used as an indicator of protein damage by free radical reactions in vitro and in a variety of pathologies. We investigated model proteins and aExpand
Identification of the major oxidative 3alpha-hydroxysteroid dehydrogenase in human prostate that converts 5alpha-androstane-3alpha,17beta-diol to 5alpha-dihydrotestosterone: a potential therapeutic
Androgen-dependent prostate diseases initially require 5alpha-dihydrotestosterone (DHT) for growth. The DHT product 5alpha-androstane-3alpha,17beta-diol (3alpha-diol), is inactive at the androgenExpand
Human deoxyuridine triphosphate nucleotidohydrolase. Purification and characterization of the deoxyuridine triphosphate nucleotidohydrolase from acute lymphocytic leukemia.
A new fast assay procedure for increasing deoxyuridine triphosphate nucleotidohydrolase activity was developed. With this assay procedure, this enzyme derived from blast cells of patients with acuteExpand
Liquid chromatography/mass spectrometry analysis of bifunctional electrophiles and DNA adducts from vitamin C mediated decomposition of 15-hydroperoxyeicosatetraenoic acid.
Reactive oxygen species convert the omega-6 polyunsaturated fatty acid arachidonic acid into 15-hydroperoxy-5,8,11,13-(Z,Z,ZE)-eicosatetraenoic acid (15-HPETE). Cyclooxygenases and lipoxygenases canExpand