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PITYROSPORUM OVALE TYPES CULTURED FROM NORMAL AND SEBORRHEIC SUBJECTS
HERBERT J. SPOOR, Ph.D., M.D.;
EUGENE F. TRAUB, M.D.;
MARY BELL, B.S.
AMA Arch Derm Syphilol. 1954;69(3):323-330.
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CONVINCING proof of an other than casual association of the Pityrosporum ovale (bottle bacillus) group of organisms with seborrheic conditions has not been fully established. Some recent investigators have emphatically asserted an etiological relationship, while others have denied its existence. The majority of workers concede only a possible pathogenicity to the organisms, even though a close association with seborrheic infection has been repeatedly observed. Technical difficulties in culturing the organisms and maintaining them through sufficient sub-cultures to obtain pure strains account for much of the lack of certainty about their status. The organisms show extreme pleomorphism when studied by direct mount, and this plus the invariable presence of contaminants in the seborrheic scale has caused confusion.
Since the report of Moore and colleagues, in 1936, which proved that some strains of the organism could be consistently grown on selected media, many cultural improvements have been made. Benham's use of
. . . [Full Text PDF of this Article]
Author Affiliations
NEW YORK
From the Department of Dermatology, New York Medical College; Dr. Eugene Traub, Director (Dr. Spoor); and the New York Medical College-Metropolitan Hospital Research Unit; Dr. Thomas H. McGavack, Director (Miss Bell).
Footnotes
Supported in part by a grant-in-aid from the Bristol-Myers Company to New York Medical College, Department of Dermatology.
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