Evidence map›Paper›PMID 27755562›Full record

ArticlePloS one2016

Selenium and Zinc Status in Chronic Myofascial Pain: Serum and Erythrocyte Concentrations and Food Intake.

João Araújo Barros-Neto, Adelmir Souza-Machado, Durval Campos Kraychete, Rosangela Passos de Jesus, Matheus Lopes Cortes, Michele Dos Santos Lima, Mariana Carvalho Freitas, Tascya Morganna de Morais Santos, Gustavo Freitas de Sousa Viana, José Antonio Menezes-Filho

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.5field-weighted citation impact, top 17% 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

5 citing papers in PubMed, 21 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. 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 1 country.

João Araújo Barros-NetoCollege of Nutrition, Federal University of Alagoas, Maceió, Alagoas, Brazil.
Adelmir Souza-MachadoInstitute of Health Sciences, Federal University of Bahia, Salvador, Bahia, Brazil.
Durval Campos KraycheteCollege of Medicine, Federal University of Bahia, Salvador, Bahia, Brazil.
Rosangela Passos de JesusCollege of Nutrition, Federal University of Bahia, Salvador, Bahia, Brazil.
Matheus Lopes CortesMultidisciplinary institute in health, Federal University of Bahia, Vitória da Conquista, Bahia, Brazil.
Michele Dos Santos LimaMultidisciplinary institute in health, Federal University of Bahia, Vitória da Conquista, Bahia, Brazil.
Mariana Carvalho FreitasUniversity Center Estácio FIC, Department of Nutrition, Fortaleza, Ceará, Brazil.
Tascya Morganna de Morais SantosFederal Institute of Alagoas, Maceió, Alagoas, Brazil.
Gustavo Freitas de Sousa VianaCollege of Pharmacy, Federal University of Bahia, Salvador, Bahia, Brazil.
José Antonio Menezes-FilhoCollege of Pharmacy, Federal University of Bahia, Salvador, Bahia, Brazil.
Universidade Federal da Bahia · BREstácio (Brazil) · BRFederal Institute of Education, Science and Technology Alagoas · BRUniversidade Federal de Alagoas · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionNutritional disorders have been reported to be important causal factors that can intensify or cause a painful response in individuals with chronic musculoskeletal pain.

aimTo assess the habitual intake of and the serum and erythrocyte levels of selenium and zinc in patients with chronic myofascial pain. MATERIALS AND

methodsA case-control study of 31 patients with chronic myofascial pain (group I) and 31 subjects without pain (group II). Dietary record in five days for assessing food intake were used. The serum and erythrocyte concentrations of selenium and zinc were analyzed using an atomic absorption spectrophotometry. Pain intensity was assessed using a visual analog scale.

resultsThe group of patients with chronic myofascial pain, compared with the control group, showed a lower erythrocyte concentration of selenium (79.46 ± 19.79 μg/L vs. 90.80 ± 23.12 μg/L; p = 0.041) and zinc (30.56 ± 7.74 μgZn/gHb vs. 38.48 ± 14.86 μgZn/gHb, respectively; p = 0.004). In this study, a compromised food intake of zinc was observed in the majority of the subjects in both groups. The selenium intake was considered to be safe in 80% of the subjects in both groups; however, the likelihood of inadequate intake of this mineral was twice as high in group I (49.5% vs. 24.4%, respectively). In the logistic regression analysis, the erythrocyte concentration of zinc was associated with the presence of pain. In each additional 1 mg of Zn2+ per gram of hemoglobin, a reduction of 12.5% was observed in the risk of the individual having chronic myofascial pain (B = -0.133; adjusted OR = 0.875, 95% CI = 0.803 to 0.954, Wald = 9.187, standard error = 0.044, p = 0.002). Physical inactivity and obesity were noted more commonly in group I compared with the control group.

conclusionIn this study, patients with chronic myofascial pain showed lower intracellular stores of zinc and selenium and inadequate food intake of these nutrients.

Indexed as

AdultAlcohol DrinkingBody Mass IndexCase-Control StudiesChronic DiseaseDietEatingErythrocytesExerciseFemaleHemoglobinsHumansLife StyleMaleMiddle AgedNutritional StatusHemoglobinsSeleniumZinc

Identifiers

PMID27755562
PMCPMC5068745
OpenAlexW2538881473

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.