Evidence map›Paper›PMID 21124007›Full record

ArticleNeuro-degenerative diseases2011

Impaired brain creatine kinase activity in Huntington's disease.

S F Zhang, T Hennessey, L Yang, N N Starkova, M F Beal, A A Starkov

Open access · bronzeAbstract read
In one paragraph

Article in Neuro-degenerative diseases, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
1.5field-weighted citation impact, top 20% of its field
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

24 citing papers in PubMed, 48 citations in OpenAlex.

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  9. Insights into GABAOpen biology · 2018
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  15. Metabolism in HD: still a relevant mechanism?Movement disorders : official journal of the Movement Disorder Society · 2014
    Review
  16. Review
  17. Review
  18. Review
  19. Mitochondrial dysfunction in neurodegenerative diseases.The Journal of pharmacology and experimental therapeutics · 2012
    Review
  20. R6/2 Huntington's disease mice develop early and progressive abnormal brain metabolism and seizures.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2012
    Article
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

6 authors at 1 institution in 1 country.

S F ZhangDepartment of Neurology and Neuroscience, Weill Medical College of Cornell University, New York, NY 10065, USA.
T Hennessey
L Yang
N N Starkova
M F Beal
A A Starkov
Cornell University · US

Funding

TRANSCRIPTIONAL RESPONSES TO MITOCHONDRIAL DYSFUNCTIONP01AG014930 · NIA · WINIFRED MASTERSON BURKE MED RES INST · PI GIBSON, GARY E · 1999 to 2020
$30.7M
Bioenergetics in Animal Models of Huntington's DiseaseR01NS039258 · NINDS · WEILL MEDICAL COLL OF CORNELL UNIV · PI BEAL, M FLINT · 1999 to 2007
$3.1M
NIA NIH HHS AG01493NIA NIH HHS P01 AG014930NINDS NIH HHS NS39258NINDS NIH HHS R01 NS039258
6 · The paper itself

Abstract

backgroundHuntington's disease (HD) is associated with impaired energy metabolism in the brain. Creatine kinase (CK) catalyzes ATP-dependent phosphorylation of creatine (Cr) into phosphocreatine (PCr), thereby serving as readily available high-capacity spatial and temporal ATP buffering.

objectiveSubstantial evidence supports a specific role of the Cr/PCr system in neurodegenerative diseases. In the brain, the Cr/PCr ATP-buffering system is established by a concerted operation of the brain-specific cytosolic enzyme BB-CK and ubiquitous mitochondrial uMt-CK. It is not yet established whether the activity of these CK isoenzymes is impaired in HD.

methodsWe measured PCr, Cr, ATP and ADP in brain extracts of 3 mouse models of HD - R6/2 mice, N171-82Q and HdhQ(111) mice - and the activity of CK in cytosolic and mitochondrial brain fractions from the same mice.

resultsThe PCr was significantly increased in mouse HD brain extracts as compared to nontransgenic littermates. We also found an approximately 27% decrease in CK activity in both cytosolic and mitochondrial fractions of R6/2 and N171-82Q mice, and an approximately 25% decrease in the mitochondria from HdhQ(111) mice. Moreover, uMt-CK and BB-CK activities were approximately 63% lower in HD human brain samples as compared to nondiseased controls.

conclusionOur findings lend strong support to the role of impaired energy metabolism in HD, and point out the potential importance of impairment of the CK-catalyzed ATP-buffering system in the etiology of HD.

Indexed as

AnimalsBrainBrain ChemistryChromatography, High Pressure LiquidCreatine Kinase, BB FormDisease Models, AnimalHuntington DiseaseMiceMice, TransgenicMitochondriaPhosphocreatineCreatine Kinase, BB FormPhosphocreatine

Identifiers

PMID21124007
PMCPMC3214941
OpenAlexW1987885447

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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 OpenQuestion graph.