α7nAChR agonist treatment rescues HFD-induced memory deficits

Validation Score: 0.850 Price: $0.50 diet-induced cognitive dysfunction HFD-fed adult Swiss male mice Status: proposed

What This Experiment Tests

Validation experiment designed to validate causal mechanisms targeting CHRNA7 in HFD-fed adult Swiss male mice. Primary outcome: rescue of memory performance and reduction of neuroinflammation

Description

HFD-fed mice received intracerebroventricular treatment with PNU-282987, a selective α7 nicotinic acetylcholine receptor agonist, for 3 days to determine if cholinergic activation could mitigate HFD-induced cognitive impairments and neuroinflammation. This pharmacological intervention experiment tested whether targeted activation of α7nAChR could reverse the negative effects of high-fat diet on memory and inflammation in the hippocampal CA3 region. The treatment was administered directly to the brain to ensure specific targeting of central cholinergic receptors.

TARGET GENE
MODEL SYSTEM
HFD-fed adult Swiss male mice
ESTIMATED COST
$0
TIMELINE
0 months
PATHWAY
cholinergic anti-inflammatory pathway
SOURCE
extracted_from_pmid_41565126
PRIMARY OUTCOME
rescue of memory performance and reduction of neuroinflammation

Scoring Dimensions

Info Gain 0.00 (25%) Feasibility 0.00 (20%) Hyp Coverage 0.00 (20%) Cost Effect. 0.00 (15%) Novelty 0.00 (10%) Ethical Safety 0.00 (10%) 0.850 composite

📖 Wiki Pages

CHRNA7 GenegeneCA3 Mossy CellscellCA3 Pyramidal NeuronsredirectCA3 Pyramidal CellscellCA3 Pyramidal NeuronscellacetylcholinegeneralneuroinflammationmechanismDonepezilentityDorsal Motor Nucleus of the VaguscellVagus Nerve Stimulation (VNS) for NeurodegenerativtreatmentNicotinic Acetylcholine Alpha-7 Receptor NeuronscellVarenicline for Falls in Hypocholinergic Parkinsonclinical

Protocol

Intracerebroventricular administration of PNU-282987 for 3 days in HFD-fed mice, followed by behavioral and molecular analysis

Expected Outcomes

PNU-282987 treatment would improve memory performance and reduce neuroinflammation in HFD-fed mice

Success Criteria

Restoration of memory function and inflammatory markers to control levels

Related Hypotheses (2)

Enhancing Vagal Cholinergic Signaling to Restore Gut-Brain Anti-Inflammatory Communication0.669
Cholinergic Attention Modulation Hypothesis0.528

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