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Related Experiment Videos

2-Deoxy-D-galactose effects on passive avoidance memorization in the rat

C G Lorenzini1, E Baldi, C Bucherelli

  • 1Dipartimento di Scienze Fisiologiche, Universita Degli Studi di Firenze, Italy.

Neurobiology of Learning and Memory
|December 17, 1997
PubMed
Summary

2-Deoxy-D-galactose (do-gal) impairs memory consolidation when given before retrieval, suggesting glycoprotein fucosylation is crucial for memory processing in rats.

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Area of Science:

  • Neuroscience
  • Biochemistry

Background:

  • Glycoprotein fucosylation is a critical post-translational modification.
  • 2-Deoxy-D-galactose (do-gal) is known to inhibit glycoprotein fucosylation.

Purpose of the Study:

  • To investigate the amnesic effects of do-gal on passive avoidance response (PAR) in Wistar rats.
  • To determine the critical timing and dosage of do-gal for inducing memory impairment.

Main Methods:

  • Intracerebroventricular administration of do-gal to adult male Wistar rats.
  • Assessment of memory using a passive avoidance response (PAR) task in a light-dark box.
  • Dose-response and time-course experiments were conducted.

Main Results:

  • A 4-mumol dosage of do-gal administered post-acquisition disrupted PAR.

Related Experiment Videos

  • Memory impairment was observed only when do-gal was administered 30 minutes before retrieval testing, not before acquisition.
  • Disruption occurred only when do-gal was given within 0.25 hours after acquisition.

    • Conclusions:

    • Glycoprotein fucosylation plays a role in the consolidation and retrieval phases of memory processing.
    • These findings highlight the importance of fucosylation in memory trace processing in rats.