Evidence map›Paper›PMID 26675066›Full record

ArticleBBA clinical2014

Noninvasive diagnostics of mitochondrial disorders in isolated lymphocytes with high resolution respirometry.

Petr Pecina, Hana Houšťková, Tomáš Mráček, Alena Pecinová, Hana Nůsková, Markéta Tesařová, Hana Hansíková, Jan Janota, Jiří Zeman, Josef Houštěk

Open access · hybridAbstract read
In one paragraph

Article in BBA clinical, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.3field-weighted citation impact, top 21% 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

16 citing papers in PubMed, 33 citations in OpenAlex.

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  9. CytochromeProceedings of the National Academy of Sciences of the United States of America · 2024
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  14. CytochromeCells · 2020
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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

10 authors at 3 institutions in 1 country.

Petr PecinaDepartment of Bioenergetics, Institute of Physiology Academy of Sciences of the Czech Republic v.v.i., 142 20 Prague 4, Czech Republic.
Hana HoušťkováDepartment of Pediatrics and Adolescent Medicine, Thomayer Hospital, 140 00 Prague 4, Czech Republic.
Tomáš MráčekDepartment of Bioenergetics, Institute of Physiology Academy of Sciences of the Czech Republic v.v.i., 142 20 Prague 4, Czech Republic.
Alena PecinováDepartment of Bioenergetics, Institute of Physiology Academy of Sciences of the Czech Republic v.v.i., 142 20 Prague 4, Czech Republic.
Hana NůskováDepartment of Bioenergetics, Institute of Physiology Academy of Sciences of the Czech Republic v.v.i., 142 20 Prague 4, Czech Republic.
Markéta TesařováClinic of Pediatrics and Adolescent Medicine, General University Hospital in Prague, 128 08 Prague 2, Czech Republic.
Hana HansíkováClinic of Pediatrics and Adolescent Medicine, General University Hospital in Prague, 128 08 Prague 2, Czech Republic.
Jan JanotaDepartment of Neonatology, Thomayer Hospital, 140 00 Prague 4, Czech Republic.
Jiří ZemanClinic of Pediatrics and Adolescent Medicine, General University Hospital in Prague, 128 08 Prague 2, Czech Republic.
Josef HouštěkDepartment of Bioenergetics, Institute of Physiology Academy of Sciences of the Czech Republic v.v.i., 142 20 Prague 4, Czech Republic.
Czech Academy of Sciences · CZGeneral University Hospital in Prague · CZThomayer University Hospital · CZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMitochondrial diseases belong to the most severe inherited metabolic disorders affecting pediatric population. Despite detailed knowledge of mtDNA mutations and progress in identification of affected nuclear genes, diagnostics of a substantial part of mitochondrial diseases relies on clinical symptoms and biochemical data from muscle biopsies and cultured fibroblasts.

methodsTo investigate manifestation of oxidative phosphorylation defects in isolated lymphocytes, digitonin-permeabilized cells from 48 children were analyzed by high resolution respirometry, cytofluorometric detection of mitochondrial membrane potential and immunodetection of respiratory chain proteins with SDS and Blue Native electrophoreses.

resultsEvaluation of individual respiratory complex activities, ATP synthesis, kinetic parameters of mitochondrial respiratory chain and the content and subunit composition of respiratory chain complexes enabled detection of inborn defects of respiratory complexes I, IV and V within 2 days. Low respiration with NADH-dependent substrates and increased respiration with glycerol-3-phosphate revealed complex I defects; changes in p 50 for oxygen and elevated uncoupling control ratio pointed to complex IV deficiency due to SURF1 or SCO2 mutation; high oligomycin sensitivity of state 3-ADP respiration, upregulated mitochondrial membrane potential and low content of complex V were found in lymphocytes with ATP synthase deficiency due to TMEM70 mutations.

conclusionBased on our results, we propose the best biochemical parameters predictive for defects of respiratory complexes I, IV and V manifesting in peripheral blood lymphocytes. GENERAL SIGNIFICANCE: The noninvasiveness, reliability and speed of an approach utilizing novel biochemical criteria demonstrate the high potential of isolated lymphocytes for diagnostics of oxidative phosphorylation disorders in pediatric patients.

Indexed as

AA, antimycin ABNE, Blue Native PAGEcI–cV, respiratory chain complexes I–VCOX, cytochrome c oxidaseDiagnosticsFCCP, carbonyl cyanide 4-(trifluoromethoxy)phenylhydrazoneGPDH, mitochondrial FAD-dependent glycerophosphate dehydrogenaseGP, glycerol-3-phosphateLymphocytesMitochondrial diseasesOxidative phosphorylationOXPHOS, oxidative phosphorylationPAGE, polyacrylamide gel electrophoresisRespirometrys3, state 3-ADPs3u, state 3-uncoupleds4o, state 4-oligomycinTMPD, tetramethylphenylenediamineTMRM, tetramethylrhodamine methyl esterΔΨm, mitochondrial membrane potential

Identifiers

PMID26675066
PMCPMC4633944
OpenAlexW2052038502

What OpenQuestion holds

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LicenceCC BY-NC-SA
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.