Staphylococcal enterotoxin A (SEA) is known as a T cell superantigen, with well-characterized neurobiological and endocrine effects. We have quantified the survival of new cells, labeled with BrdU, in the dentate gyrus of the hippocampus after SEA or Saline injection into male C57BL/6 mice. A reduction of BrdU+ cells was found on Day 11 after SEA treatment, but not on Day 4. This suggests that BrdU+ cell retention was reduced by T cell activation. To determine if this decline in BrdU+ cells might predict deficits in spatial learning, a second experiment was conducted in which the effect of SEA treatment on spatial navigation learning in the Morris water maze (MWM) and the water-based Radial Arm Maze (wRAM) was investigated. Male C57BL/6J mice were given 5 ug SEA (N=7) or Saline (N=7) and then subjected to MWM hidden platform training. Two weeks after the final MWM training, mice were subjected to 8 days of water-based radial arm maze (wRAM) training. The results showed no major SEA effect on initial MWM learning. Further, wRAM learning was not affected by SEA-treated mice, but interfered with the interaction of SEA treatment and MWM pre-exposure. This may be due to a reduction in cognitive flexibility.
Subject (authority = RUETD)
Topic
Psychology
Subject (authority = ETD-LCSH)
Topic
Staphylococcal protein A
RelatedItem (type = host)
TitleInfo
Title
Rutgers University Electronic Theses and Dissertations
Identifier (type = RULIB)
ETD
Identifier
ETD_6810
PhysicalDescription
Form (authority = gmd)
electronic resource
InternetMediaType
application/pdf
InternetMediaType
text/xml
Extent
1 online resource (vi, 40 p. : ill.)
Note (type = degree)
M.S.
Note (type = bibliography)
Includes bibliographical references
Note (type = statement of responsibility)
by Qing Chang
RelatedItem (type = host)
TitleInfo
Title
Graduate School - New Brunswick Electronic Theses and Dissertations
Identifier (type = local)
rucore19991600001
Location
PhysicalLocation (authority = marcorg); (displayLabel = Rutgers, The State University of New Jersey)
Rutgers University. Graduate School - New Brunswick
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License
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Author Agreement License
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