TY - JOUR KW - Amoxicillin KW - Amoxicillin-Potassium Clavulanate Combination KW - Ampicillin KW - Animals KW - Anti-Bacterial Agents KW - Clavulanic Acids KW - Drug Therapy, Combination KW - Mice KW - Microbial Sensitivity Tests KW - Mycobacterium KW - Penicillanic Acid KW - Piperacillin KW - Piperacillin, Tazobactam Drug Combination KW - Sulbactam KW - beta-Lactamase Inhibitors AU - Prabhakaran K AU - Harris E B AU - Randhawa B AU - Adams L B AU - Williams D L AU - Hastings R C AB -

Mycobacterium tuberculosis and Mycobacterium leprae develop resistance against the drugs used to treat tuberculosis and leprosy, respectively. Now multidrug-resistant tuberculosis is spreading in many countries, especially with the emergence of AIDS. Multidrug treatment is being promoted at present to eradicate leprosy. Since M. leprae may also become multidrug-resistant, new approaches have to be adopted for controlling mycobacterial diseases. Mycobacteria usually synthesize beta-lactamase and are insensitive to beta-lactam antibiotics. M. tuberculosis contains a constitutive beta-lactamase; de-repression of beta-lactamase has been reported in M. leprae. Three different beta-lactam/beta-lactamase-inhibitor combinations (ampicillin/sulbactam, amoxicillin/clavulanate and piperacillin/tazobactam) were used to suppress the growth of several strains of mycobacteria (including M. tuberculosis H37Rv) in vitro. Ampicillin/sulbactam is a potent bactericidal agent against M. leprae multiplying in mouse foot pads. In the present work, ampicillin/sulbactam showed higher activity than the other drug combinations. The beta-lactam/beta-lactamase inhibitors are likely to be effective as rational therapeutic agents against mycobacterial infections.

BT - Microbios C1 - http://www.ncbi.nlm.nih.gov/pubmed/8302203?dopt=Abstract DA - 1993 IS - 309 J2 - Microbios LA - eng N2 -

Mycobacterium tuberculosis and Mycobacterium leprae develop resistance against the drugs used to treat tuberculosis and leprosy, respectively. Now multidrug-resistant tuberculosis is spreading in many countries, especially with the emergence of AIDS. Multidrug treatment is being promoted at present to eradicate leprosy. Since M. leprae may also become multidrug-resistant, new approaches have to be adopted for controlling mycobacterial diseases. Mycobacteria usually synthesize beta-lactamase and are insensitive to beta-lactam antibiotics. M. tuberculosis contains a constitutive beta-lactamase; de-repression of beta-lactamase has been reported in M. leprae. Three different beta-lactam/beta-lactamase-inhibitor combinations (ampicillin/sulbactam, amoxicillin/clavulanate and piperacillin/tazobactam) were used to suppress the growth of several strains of mycobacteria (including M. tuberculosis H37Rv) in vitro. Ampicillin/sulbactam is a potent bactericidal agent against M. leprae multiplying in mouse foot pads. In the present work, ampicillin/sulbactam showed higher activity than the other drug combinations. The beta-lactam/beta-lactamase inhibitors are likely to be effective as rational therapeutic agents against mycobacterial infections.

PY - 1993 SP - 251 EP - 61 T2 - Microbios TI - Use of beta-lactam/beta-lactamase-inhibitor combinations as antimycobacterial agents. VL - 76 SN - 0026-2633 ER -