Evidence map›Paper›PMID 33151476›Full record

ArticleMolecular biology reports2020

(-)-Epicatechin reduces muscle waste after complete spinal cord transection in a murine model: role of ubiquitin-proteasome system.

Cristian Gonzalez-Ruiz, Paola Cordero-Anguiano, Axayacatl Morales-Guadarrama, Rodrigo Mondragón-Lozano, Stephanie Sánchez-Torres, Hermelinda Salgado-Ceballos, Francisco Villarreal, Eduardo Meaney, Guillermo Ceballos, Nayelli Nájera

Abstract read
PubMed Publisher
In one paragraph

Article in Molecular biology reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
0.3field-weighted citation impact, top 42% 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

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 10 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Review
  9. Review
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 4 institutions in 2 countries.

Cristian Gonzalez-RuizLaboratorio de Investigación Integral Cardiometabólica, Escuela Superior de Medicina, Instituto Politécnico Nacional, Mexico, Mexico.ORCID http://orcid.org/0000-0003-0140-291X
Paola Cordero-AnguianoLaboratorio de Investigación Integral Cardiometabólica, Escuela Superior de Medicina, Instituto Politécnico Nacional, Mexico, Mexico.ORCID http://orcid.org/0000-0002-2284-4226
Axayacatl Morales-GuadarramaCentro Nacional de Investigación en Imagenología e Instrumentación Médica, Departamento de Ingeniería Eléctrica, Universidad Autónoma Metropolitana Iztapalapa, Mexico, Mexico.ORCID http://orcid.org/0000-0002-4072-2572
Rodrigo Mondragón-LozanoConsejo Nacional de Ciencia y Tecnología, Unidad de Investigación Médica en Enfermedades Neurológicas, Hospital de Especialidades Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico, Mexico.ORCID http://orcid.org/0000-0002-7060-6185
Stephanie Sánchez-TorresDivisión de Ciencias Biológicas y de la Salud, Posgrado en Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana, Unidad Iztapalapa, Mexico, Mexico.ORCID http://orcid.org/0000-0002-0508-5221
Hermelinda Salgado-CeballosUnidad de Investigación Médica en Enfermedades Neurológicas, Hospital de Especialidades Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico, Mexico.ORCID http://orcid.org/0000-0002-0715-9263
Francisco VillarrealSchool of Medicine, University of California San Diego, San Diego, USA.ORCID http://orcid.org/0000-0002-3251-4909
Eduardo MeaneyLaboratorio de Investigación Integral Cardiometabólica, Escuela Superior de Medicina, Instituto Politécnico Nacional, Mexico, Mexico.ORCID http://orcid.org/0000-0002-1341-5526
Guillermo CeballosLaboratorio de Investigación Integral Cardiometabólica, Escuela Superior de Medicina, Instituto Politécnico Nacional, Mexico, Mexico. gceballosr@ipn.mx.ORCID http://orcid.org/0000-0003-2155-3934
Nayelli NájeraLaboratorio de Investigación Integral Cardiometabólica, Escuela Superior de Medicina, Instituto Politécnico Nacional, Mexico, Mexico. nnajerag@ipn.mx.ORCID http://orcid.org/0000-0002-6869-8762
Instituto Politécnico Nacional · MXMexican Social Security Institute · MXUniversidad Autónoma Metropolitana · MXUniversity of California San Diego · US

Funding

Consejo Nacional de Ciencia y Tecnologia 253769NIH HHS DK98717
6 · The paper itself

Abstract

The skeletal muscle mass reduces 30-60% after spinal cord injury, this is mostly due to protein degradation through ubiquitin-proteasome system. In this work, we propose that the flavanol (-)-epicatechin, due its widespread biological effects on muscle health, can prevent muscle mass decrease after spinal cord injury. Thirty-six female Long Evans rats were randomized into 5 groups: (1) Spinal cord injury 7 days, (2) Spinal cord injury + (-)-epicatechin 7 days, (3) Spinal cord injury 30 days, (4) Spinal cord injury + (-)-epicatechin 30 days and (5) Sham (Only laminectomy). Hind limb perimeter, muscle cross section area, fiber cross section area and ubiquitin-proteasome system protein expression together with total protein ubiquitination were assessed. At 30 days Spinal cord injury group lost 49.52 ± 2.023% of muscle cross section area (-)-epicatechin treated group lost only 24.28 ± 15.45% being a significant difference. Ubiquitin-proteasome markers showed significant changes. FOXO1a increased in spinal cord injury group vs Sham (-)-epicatechin reduced this increase. In spinal cord injury group MAFbx increased significantly vs Sham but decrease in (-)-epicatechin treatment group at 30 days. At 7 and 30 days MuRF1 increased in the spinal cord injury and decreased in the (-)-epicatechin group. The global protein ubiquitination increases after spinal cord injury, epicatechin treatment induce a significant decrease in protein ubiquitination. These results suggest that (-)-epicatechin reduces the muscle waste after spinal cord injury through down regulation of the ubiquitin-proteasome system.

Indexed as

Disease Models, AnimalAnimalsCatechinFemaleMagnetic Resonance ImagingMuscle, SkeletalMuscular AtrophyMyofibrilsProteasome Endopeptidase ComplexRats, Long-EvansSpinal Cord InjuriesCatechinProteasome Endopeptidase Complex(−)-EpicatechinFOXO1aMAFbxMuRF1Muscle atrophySpinal cord injury

Identifiers

PMID33151476
OpenAlexW3097003349

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.