Evidence mapPaperPMID 40811673Full record

ArticlePloS one2025

Cannabidiol improves learning and memory deficits and alleviates anxiety in 12-month-old SAMP8 mice.

Monica N Goodland, Subhashis Banerjee, Michael L Niehoff, Benjamin J Young, Heather Macarthur, Andrew A Butler, John E Morley, Susan A Farr

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Article in PloS one, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Monica N GoodlandDeparment of Pharmacology and Physiology, Saint Louis University School of Medicine, St. Louis, MO, USA.ORCID 0000-0002-2537-0935
Subhashis BanerjeeDivision of Geriatric Medicine, Saint Louis University School of Medicine, Saint Louis, MO, USA.
Michael L NiehoffDivision of Geriatric Medicine, Saint Louis University School of Medicine, Saint Louis, MO, USA.
Benjamin J YoungDeparment of Pharmacology and Physiology, Saint Louis University School of Medicine, St. Louis, MO, USA.
Heather MacarthurDeparment of Pharmacology and Physiology, Saint Louis University School of Medicine, St. Louis, MO, USA.
Andrew A ButlerDeparment of Pharmacology and Physiology, Saint Louis University School of Medicine, St. Louis, MO, USA.
John E MorleyDivision of Geriatric Medicine, Saint Louis University School of Medicine, Saint Louis, MO, USA.
Susan A FarrDeparment of Pharmacology and Physiology, Saint Louis University School of Medicine, St. Louis, MO, USA.ORCID 0000-0002-0481-2570

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cannabidiol (CBD) has gained a lot of interest in recent years for its purported medicinal properties. CBD has been investigated for the treatment of anxiety, depression, epilepsy, neuroinflammation, and pain. Recently there has been an interest in CBD as a possible treatment for age-related disorders such as Alzheimer's disease and related disorders (ADRD). Here we tested the hypothesis that chronic CBD administration would improve learning and memory in the SAMP8 mouse model of Alzheimer's disease. SAMP8 mice aged 11 months (at the start of the study) were administered vehicle or CBD (3 or 30 mg/Kg) daily via oral gavage for 2 months. Vehicle-treated young SAMP8 mice (age 3 months at the start of the study) served as unimpaired controls. After 30 days of treatment (4 and 12 months of age), learning and memory, activity, anxiety, strength and dexterity were assessed. High dose CBD treatment significantly improved learning and memory of the 12-month-old mice in the T maze. Novel object recognition memory was also improved by CBD in aged CBD treated mice. Aged CBD treated mice also displayed less anxiety in the elevated plus maze test compared to controls. However, activity and strength levels were similar between groups. Biochemical analysis revealed decreased markers of oxidative stress, providing a possible mechanism by which CBD treatment impacts learning, memory, and anxiety. These results highlight the potential use of CBD as a therapeutic for age related cognitive impairment and dementia.

Indexed as

AnxietyCannabidiolLearningMemory DisordersAlzheimer DiseaseAnimalsDisease Models, AnimalMaleMaze LearningMemoryMiceCannabidiol

Identifiers

PMID40811673
PMCPMC12352845

What Socratic holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.