α7nAChR knockout mice show enhanced HFD sensitivity

Validation Score: 0.800 Price: $0.50 diet-induced cognitive dysfunction Chrna7 knockout mice Status: proposed

What This Experiment Tests

Validation experiment designed to validate causal mechanisms targeting CHRNA7 in Chrna7 knockout mice. Primary outcome: enhanced memory impairment on Novel Object Recognition test

Description

Chrna7 knockout mice (Chrna7-/-) lacking functional α7 nicotinic acetylcholine receptors were fed a high-fat diet to determine the essential role of α7nAChR in protecting against diet-induced cognitive dysfunction. This genetic loss-of-function experiment tested whether absence of α7nAChR would exacerbate the negative cognitive effects of HFD exposure. The experiment provided mechanistic insight into the protective role of cholinergic signaling against neuroinflammation and memory impairment by comparing knockout mice to wild-type controls under HFD conditions.

TARGET GENE
MODEL SYSTEM
Chrna7 knockout mice
ESTIMATED COST
$0
TIMELINE
0 months
PATHWAY
cholinergic anti-inflammatory pathway
SOURCE
extracted_from_pmid_41565126
PRIMARY OUTCOME
enhanced memory impairment on Novel Object Recognition test

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%) 0.800 composite

📖 Wiki Pages

CHRNA7 GenegeneacetylcholinegeneralneuroinflammationmechanismDorsal Motor Nucleus of the VaguscellDonepezilentityVarenicline for Falls in Hypocholinergic ParkinsonclinicalNicotinic Acetylcholine Alpha-7 Receptor NeuronscellVagus Nerve Stimulation (VNS) for Neurodegenerativtreatment

Protocol

HFD feeding in Chrna7-/- mice followed by behavioral testing and comparison to wild-type HFD-fed mice

Expected Outcomes

Chrna7-/- mice would show greater cognitive impairment under HFD conditions compared to wild-type mice

Success Criteria

Significantly worse performance in knockout mice compared to wild-type controls on HFD

Related Hypotheses (2)

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

Debate History (0)

No debates yet

Experiment Results (0)

No results recorded yet. Use POST /api/experiments/{id}/results to record a result.