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1.  In vitro model to assess effect of antimicrobial agents on Encephalitozoon cuniculi. 
Antimicrobial Agents and Chemotherapy  1994;38(10):2440-2448.
We have developed a new micromethod to study the effect of drugs on microsporidia, using MRC5 fibroblasts infected by 10(5) spores of Encephalitozoon cuniculi. After 3 days of incubation with various concentrations of drugs, parasitic foci were counted in stained cultures. The inhibition of microsporidial growth exceeding 90% with albendazole (0.005 microgram/ml), fumagillin (0.001 microgram/ml), 5-fluorouracil (3 micrograms/ml), and sparfloxacin (30 micrograms/ml) was observed. Chloroquine, pefloxacin, azithromycin, and rifabutin were partially effective, at high concentrations. Arprinocid, metronidazole, minocycline, doxycycline, itraconazole, and difluoromethylornithine were not evaluable, since concentrations that inhibited microsporidia were also toxic for fibroblasts. Pyrimethamine, piritrexim, sulfonamides, paromomycin, roxithromycin, atovaquone, and flucytosine were ineffective. Our results confirm that albendazole and fumagillin have marked activity against E. cuniculi and show the antimicrosporidial activity of 5-fluorouracil and sparfloxacin. These data may form the basis for treatment of Encephalitozoon hellem and Septata intestinalis infections and represent an attempt to identify drugs effective against Enterocytozoon bieneusi.
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PMCID: PMC284758  PMID: 7840584
2.  Laboratory diagnosis of pulmonary toxoplasmosis in patients with acquired immunodeficiency syndrome. 
Journal of Clinical Microbiology  1989;27(7):1661-1663.
In four cases of pulmonary toxoplasmosis occurring in patients with acquired immunodeficiency syndrome, Toxoplasma sp. was discovered in bronchoalveolar-lavage fluid (three cases) and in lung biopsy specimen (one case) by using the following methods: direct examination of smears stained with eosine-methylene blue fast stain, indirect immunofluorescence assay, and inoculation of MRC5 fibroblast cell line in tissue culture.
PMCID: PMC267636  PMID: 2671023

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