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Effect of a ketogenic diet on motor performance and amyloid beta accumulation in a mouse model of inclusion body myositis

2009· article· en· W2265513762 on OpenAlexaff
Dana M. Niedowicz, Tina L. Beckett, Adam M. Weidner, Christa M. Studzinski, M. Paul Murphy

Bibliographic record

VenueThe FASEB Journal · 2009
Typearticle
Languageen
FieldMedicine
TopicDiet and metabolism studies
Canadian institutionsUniversity of Toronto
FundersNational Institutes of Health
KeywordsKetogenic dietInternal medicineEndocrinologyMedicineKetone bodiesResistinAdiponectinLeptinEpilepsyObesityAdipokineMetabolismInsulin resistance

Abstract

fetched live from OpenAlex

?‐Amyloid (A ?) accumulation is a hallmark of Alzheimer's disease (AD) and is thought to induce the onset of disease. Similarly, A ? accumulates in muscle in inclusion body myositis (IBM), an age‐related disease. Our lab is interested in the potentially shared aspects of the disease process, particularly those involving regulation of expression. There is considerable evidence that diet impacts the progression of AD, a theory supported by the correlation between diabetes and AD. A "ketogenic" diet has been used to treat childhood epilepsy and has shown efficacy in AD models. In this study, we fed aged (18‐19 mo.) IBM transgenic mice either a ketogenic (80% fat) or control (10% fat) diet for 2 months, significantly enhancing ketone levels (0.33 ± 0.06 mM vs. 0.68 ± 0.08 mM). Motor performance was measured longitudinally and tissue was collected after euthanasia. Plasma insulin and cholesterol decreased in mice fed the ketogenic diet (0.93 ± 0.3 ng/mL vs. 0.65 ± 0.08 ng/mL and 2.16 ± 0.41 mg/mL vs. 1.55 ± 0.1 mg/mL respectively), while adiponectin, leptin, and resistin were unaffected. The ketogenic diet markedly prolonged wire suspension times (1.33 ± 0.21 sec. vs. 6.6 ± 2.8 sec.) and induced a trend towards improved grip strength (0.55 ± 0.06 N vs. 0.62 ± 0.04 N) and exploratory behavior (17.6 ± 3.2 meters vs. 21.1 ± 4.3 meters). These data suggest that dietary interventions may have some therapeutic value for both AD and IBM. Supported by NIH NS058382.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.001
Threshold uncertainty score0.005

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0010.000
Science and technology studies0.0000.001
Scholarly communication0.0010.001
Open science0.0010.000
Research integrity0.0010.002
Insufficient payload (model declined to judge)0.0010.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.019
GPT teacher head0.290
Teacher spread0.271 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations0
Published2009
Admission routes1
Has abstractyes

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