Evidence map›Paper›PMID 25363063›Full record

ArticleBritish journal of pharmacology2015

Inhibition of L-carnitine biosynthesis and transport by methyl-γ-butyrobetaine decreases fatty acid oxidation and protects against myocardial infarction.

E Liepinsh, M Makrecka-Kuka, J Kuka, R Vilskersts, E Makarova, H Cirule, E Loza, D Lola, S Grinberga, O Pugovics and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in British journal of pharmacology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
1.0field-weighted citation impact, top 27% 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

20 citing papers in PubMed, 42 citations in OpenAlex.

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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

12 authors at 2 institutions in 1 country.

E LiepinshLatvian Institute of Organic Synthesis, Riga, Latvia.
M Makrecka-Kuka
J Kuka
R Vilskersts
E Makarova
H Cirule
E Loza
D Lola
S Grinberga
O Pugovics
I Kalvins
M Dambrova
Latvijas Organiskās Sintēzes Institūts · LVRiga Stradiņš University · LV

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeThe important pathological consequences of ischaemic heart disease arise from the detrimental effects of the accumulation of long-chain acylcarnitines in the case of acute ischaemia-reperfusion. The aim of this study is to test whether decreasing the L-carnitine content represents an effective strategy to decrease accumulation of long-chain acylcarnitines and to reduce fatty acid oxidation in order to protect the heart against acute ischaemia-reperfusion injury. KEY

resultsIn this study, we used a novel compound, 4-[ethyl(dimethyl)ammonio]butanoate (Methyl-GBB), which inhibits γ-butyrobetaine dioxygenase (IC₅₀ 3 μM) and organic cation transporter 2 (OCTN2, IC₅₀ 3 μM), and, in turn, decreases levels of L-carnitine and acylcarnitines in heart tissue. Methyl-GBB reduced both mitochondrial and peroxisomal palmitate oxidation rates by 44 and 53% respectively. In isolated hearts treated with Methyl-GBB, uptake and oxidation rates of labelled palmitate were decreased by 40%, while glucose oxidation was increased twofold. Methyl-GBB (5 or 20 mg·kg(-1)) decreased the infarct size by 45-48%. In vivo pretreatment with Methyl-GBB (20 mg·kg(-1)) attenuated the infarct size by 45% and improved 24 h survival of rats by 20-30%. CONCLUSIONS AND IMPLICATIONS: Reduction of L-carnitine and long-chain acylcarnitine content by the inhibition of OCTN2 represents an effective strategy to protect the heart against ischaemia-reperfusion-induced damage. Methyl-GBB treatment exerted cardioprotective effects and increased survival by limiting long-chain fatty acid oxidation and facilitating glucose metabolism.

Indexed as

AnimalsBiological TransportCarnitineDose-Response Relationship, DrugFatty Acidsgamma-Aminobutyric Acidgamma-Butyrobetaine DioxygenaseMaleMolecular StructureMyocardial InfarctionOrganic Cation Transporter 2Organic Cation Transport ProteinsOxidation-ReductionQuaternary Ammonium CompoundsRatsRats, WistarCarnitineFatty Acidsgamma-Aminobutyric Acidgamma-Butyrobetaine Dioxygenasemethyl-gamma-butyrobetaineOrganic Cation Transporter 2Organic Cation Transport ProteinsQuaternary Ammonium CompoundsSlc22a2 protein, rat

Identifiers

PMID25363063
PMCPMC4337704
OpenAlexW1543924018

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.