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The prototypical ranitidine analog JWS-USC-75-IX improves information processing and cognitive function in animal

Alvin V Terry1, Jerry J Buccafusco, Elizabeth J Herman

  • 1Department of Pharmacology and Toxicolog, Medical College of Georgia, Augusta, Georgia, USA. aterry@mcg.edu

The Journal of Pharmacology and Experimental Therapeutics
|November 26, 2010
PubMed
Summary
This summary is machine-generated.

JWS, a ranitidine analog, shows promise for neuropsychiatric disorders by improving cognitive and behavioral symptoms in animal models. This compound enhances memory and attention through its effects on neurotransmitter receptors and cholinesterase inhibition.

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Area of Science:

  • Neuropharmacology
  • Behavioral Neuroscience

Background:

  • Neuropsychiatric disorders present complex cognitive and behavioral symptoms.
  • Acetylcholinesterase (AChE) inhibitors and muscarinic receptor ligands are targets for cognitive enhancement.
  • JWS-USC-75-IX (JWS) is a ranitidine analog with prior evidence of cognitive-enhancing effects.

Purpose of the Study:

  • To further evaluate the neuropharmacologic properties of JWS.
  • To assess JWS's binding profile across a broad range of neurotransmitter targets.
  • To investigate JWS's efficacy in various behavioral models of cognitive and noncognitive symptoms.

Main Methods:

  • Assessed JWS binding at over 60 neurotransmitter receptors, transporters, and ion channels.
  • Determined inhibitory activity of JWS against acetylcholinesterase (AChE) and butyrylcholinesterase (BChE).
  • Evaluated JWS's behavioral effects in rodents and nonhuman primates using tasks assessing learning, memory, attention, and sensorimotor gating.

Main Results:

  • JWS inhibited AChE and BChE at micromolar concentrations and acted as a functional antagonist at M₂ receptors.
  • In rodents, JWS improved prepulse inhibition (PPI) and attenuated PPI deficits induced by pharmacologic agents.
  • JWS ameliorated cognitive impairments in novel object recognition and reaction time tasks and enhanced performance in attention and memory tasks in nonhuman primates.

Conclusions:

  • JWS demonstrates broad neuropharmacologic activity, including cholinesterase inhibition and M₂ receptor antagonism.
  • JWS improves information processing, attention, and memory in diverse animal models.
  • JWS holds potential for treating cognitive and behavioral symptoms associated with neuropsychiatric disorders.