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Biology and Biochemistry

D-Index
41
Citations
5393
World Ranking
19564
National Ranking
7972

Overview

Richard J. O'Callaghan is affiliated with the University of Mississippi Medical Center in the United States. Their research primarily spans the fields of Medicine and Biochemistry, Genetics, and Molecular Biology, with a focus on ophthalmology, infectious diseases, and molecular biology subfields.

The scientist's work concentrates on specific topics including:

  • Ocular Infections and Treatments
  • Antimicrobial Resistance in Staphylococcus
  • Bacterial biofilms and quorum sensing

One notable recent publication by Richard J. O'Callaghan is titled Correlation of Staphylococcus Epidermidis Phenotype and Its Corneal Virulence, published in 2020 in the journal Current Eye Research. This publication has received citations reflecting engagement within the academic community.

Frequent collaborators in the scientist's research endeavors include:

  • Armando R. Caballero
  • Aihua Tang
  • Michael A. Bierdeman
  • Mary E. Marquart

Richard J. O'Callaghan's research contributions have appeared primarily in Current Eye Research, which is a platform for disseminating findings related to ocular health and disease.

Best Publications

  • Protease IV, a Unique Extracellular Protease and Virulence Factor from Pseudomonas aeruginosa

    Lee S. Engel;James M. Hill;Armando R. Caballero;Linda C. Green

  • Specific roles of alpha-toxin and beta-toxin during Staphylococcus aureus corneal infection.

    R J O'Callaghan;M C Callegan;J M Moreau;L C Green

  • Pseudomonas aeruginosa protease IV enzyme assays and comparison to other Pseudomonas proteases.

    Armando R. Caballero;Judy M. Moreau;Lee S. Engel;Mary E. Marquart

  • Corneal virulence of Staphylococcus aureus: roles of alpha-toxin and protein A in pathogenesis.

    M C Callegan;L S Engel;J M Hill;R J O'Callaghan

  • Pseudomonas aeruginosa protease IV degrades surfactant proteins and inhibits surfactant host defense and biophysical functions

    Jaret L. Malloy;Ruud A. W. Veldhuizen;Brett A. Thibodeaux;Richard J. O'Callaghan

  • Pseudomonas keratitis. The role of an uncharacterized exoprotein, protease IV, in corneal virulence.

    R J O'Callaghan;L S Engel;J A Hobden;M C Callegan

  • Pseudomonas aeruginosa protease IV produces corneal damage and contributes to bacterial virulence.

    L S Engel;J M Hill;J M Moreau;L C Green

  • Stages in phage R17 infection. VI. Injection of A protein and RNA into the host cell.

    P.M. Krahn;R.J. O'Callaghan;W. Paranchych

  • The Pathogenesis of Staphylococcus aureus Eye Infections

    Richard J O'Callaghan

  • Prevention of diseases caused by Staphylococcus aureus using the peptide RIP

    Naomi Balaban;L.Vincent Collins;James S Cullor;Emma B Hume

  • The Role of Pneumolysin in Ocular Infections with Streptococcus Pneumoniae

    Mary K. Johnson;Jeffery A. Hobden;Michael Hagenah;Richard J. O'callaghan

  • Identification of a novel secreted protease from Pseudomonas aeruginosa that causes corneal erosions.

    Mary E Marquart;Armando R Caballero;Mullika Chomnawang;Brett A Thibodeaux

  • Effectiveness of Ciprofloxacin, Levofloxacin, or Moxifloxacin for Treatment of Experimental Staphylococcus aureus Keratitis

    Joseph J. Dajcs;Brett A. Thibodeaux;Mary E. Marquart;Dalia O. Girgis

  • Quantitation of herpes simplex virus type 1 DNA and latency-associated transcripts in rabbit trigeminal ganglia demonstrates a stable reservoir of viral nucleic acids during latency.

    J M Hill;B M Gebhardt;R Wen;A M Bouterie

  • Human antibody to influenza C virus: its age-related distribution and distinction from receptor analogs.

    R J O'Callaghan;R S Gohd;D D Labat

  • Corneal virulence of Staphylococcus aureus in an experimental model of keratitis.

    Joseph J. Dajcs;Brett A. Thibodeaux;Dalia O. Girgis;Richard J. O'Callaghan

  • Infectious Keratitis: Secreted Bacterial Proteins That Mediate Corneal Damage

    Mary E. Marquart;Richard J. O'Callaghan

  • Immunization with alpha-toxin toxoid protects the cornea against tissue damage during experimental Staphylococcus aureus keratitis.

    Emma B. H. Hume;Joseph J. Dajcs;Judy M. Moreau;Richard J. O'Callaghan

  • Iontophoresis of tobramycin for the treatment of experimental Pseudomonas keratitis in the rabbit.

    David S. Rootman;Jeffery A. Hobden;Julie A. Jantzen;José R. Gonzalez

  • Immunity to lysostaphin and its therapeutic value for ocular MRSA infections in the rabbit.

    Joseph J Dajcs;Brett A Thibodeaux;Dalia O Girgis;Megan D Shaffer

Frequent Co-Authors

James M. Hill
James M. Hill Louisiana State University
Herbert E. Kaufman
Herbert E. Kaufman Louisiana State University
Larry S. McDaniel
Larry S. McDaniel University of Mississippi Medical Center
Timothy J. Foster
Timothy J. Foster Campden BRI (United Kingdom)
Jan Tommassen
Jan Tommassen Utrecht University
Mark D. P. Willcox
Mark D. P. Willcox University of New South Wales
Timothy J. Mitchell
Timothy J. Mitchell University of Birmingham
Reuben Ramphal
Reuben Ramphal University of Florida
Mark E. Shirtliff
Mark E. Shirtliff University of Maryland, Baltimore
Andrej Tarkowski
Andrej Tarkowski Sahlgrenska University Hospital

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