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Related Experiment Videos

Differential OMP expression in opossum accessory olfactory bulb

L Shnayder1, M Schwanzel-Fukuda, M Halpern

  • 1Program in Neural and Behavioral Sciences, Health Science Center at Brooklyn, State University, NY 11203.

Neuroreport
|December 13, 1993
PubMed
Summary
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Olfactory marker protein (OMP) shows differential expression in the accessory olfactory bulb (AOB) of the Brazilian opossum, Monodelphis domestica, as it matures. This finding may help determine the function of OMP in olfactory processing.

Area of Science:

  • Neuroscience
  • Immunohistochemistry
  • Mammalian Olfaction

Background:

  • Olfactory marker protein (OMP) is a key protein in the olfactory system.
  • Its precise function and expression patterns require further elucidation, particularly in non-rodent models.

Purpose of the Study:

  • To investigate the localization and developmental expression of OMP in the main olfactory bulb (MOB) and accessory olfactory bulb (AOB) of the Brazilian opossum, Monodelphis domestica.
  • To identify potential functional differences in OMP expression between the MOB and AOB.

Main Methods:

  • Immunohistochemical techniques were employed to detect OMP.
  • Tissue samples from 30-day-old, 45-day-old, and adult Monodelphis domestica were analyzed.

Main Results:

Related Experiment Videos

  • OMP was localized to the olfactory nerve and glomerular layers in both the MOB and AOB.
  • Adult MOB showed intense, uniform staining in these layers.
  • Adult AOB exhibited differential staining, with the rostral half more intensely stained than the caudal half, and both less intense than the MOB.
  • This differential AOB staining emerged between postnatal day 30 and 45.

Conclusions:

  • This study reports the first evidence of differential OMP expression in the AOB of Monodelphis domestica.
  • The developmental emergence of this differential staining suggests a role in distinct olfactory functions.
  • This finding offers a novel avenue for investigating the functional significance of OMP.