Enhancement of In Vitro Growth of Pathogenic Bacteria by Norepinephrine: Importance of Inoculum Density and Role of Transferri n

Norepinephrine is a stress hormone that enhances bacterial growth. We examined the effects of a small inoculum on the norepinephrine-induced growth of species previously reported to be unaffected by norepinephrine. The results indicated that a reduced inoculum density is essential for observing nore...

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Bibliographic Details
Published in:Applied and environmental microbiology 2006-07, Vol.72 (7), p.5097
Main Authors: O'Donnell, Phyllis M, Aviles, Hernan, Lyte, Mark, Sonnenfeld, Gerald
Format: Article
Language:English
Subjects:
Bacteria
Hormones
Physical growth
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Summary:Norepinephrine is a stress hormone that enhances bacterial growth. We examined the effects of a small inoculum on the norepinephrine-induced growth of species previously reported to be unaffected by norepinephrine. The results indicated that a reduced inoculum density is essential for observing norepinephrine-induced effects. Additional studies using serum-free media suggested that transferrin plays a role in norepinephrine-induced growth. [PUBLICATION ABSTRACT]
ISSN:0099-2240
1098-5336