Evidence map›Paper›PMID 23894433›Full record

Trial reportPloS one2013

DNAJB3/HSP-40 cochaperone is downregulated in obese humans and is restored by physical exercise.

Jehad Abubaker, Ali Tiss, Mohamed Abu-Farha, Fahad Al-Ghimlas, Irina Al-Khairi, Engin Baturcam, Preethi Cherian, Naser Elkum, Maha Hammad, Jeena John and 6 more

Open access · goldAbstract readClinical Trial
In one paragraph

Trial report in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 1 pooled it
2.4field-weighted citation impact, top 11% 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

30 citing papers in PubMed, 1 synthesis or guideline pooled it, 59 citations in OpenAlex.

  1. Pooled it
  2. Shiga Toxins Produced by EnterohaemorrhagicJournal of microbiology and biotechnology · 2024
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  8. RANTES and CD40L under Conditions of Long-Term Physical Exercise: A Potential Link to Adaptive Immunity.International journal of environmental research and public health · 2022
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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

16 authors at 1 institution in 1 country.

Jehad AbubakerBiomedical Research Department, Dasman Diabetes Institute, Kuwait, Kuwait.
Ali Tiss
Mohamed Abu-Farha
Fahad Al-Ghimlas
Irina Al-Khairi
Engin Baturcam
Preethi Cherian
Naser Elkum
Maha Hammad
Jeena John
Sina Kavalakatt
Abdelkrim Khadir
Samia Warsame
Said Dermime
Kazem Behbehani
Mohammed Dehbi
Dasman Diabetes Institute · KW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Obesity is a major risk factor for a myriad of disorders such as insulin resistance and diabetes. The mechanisms underlying these chronic conditions are complex but low grade inflammation and alteration of the endogenous stress defense system are well established. Previous studies indicated that impairment of HSP-25 and HSP-72 was linked to obesity, insulin resistance and diabetes in humans and animals while their induction was associated with improved clinical outcomes. In an attempt to identify additional components of the heat shock response that may be dysregulated by obesity, we used the RT(2)-Profiler PCR heat shock array, complemented with RT-PCR and validated by Western blot and immunohistochemistry. Using adipose tissue biopsies and PBMC of non-diabetic lean and obese subjects, we report the downregulation of DNAJB3 cochaperone mRNA and protein in obese that negatively correlated with percent body fat (P = 0.0001), triglycerides (P = 0.035) and the inflammatory chemokines IP-10 and RANTES (P = 0.036 and P = 0.02, respectively). DNAJB positively correlated with maximum oxygen consumption (P = 0.031). Based on the beneficial effect of physical exercise, we investigated its possible impact on DNAJB3 expression and indeed, we found that exercise restored the expression of DNAJB3 in obese subjects with a concomitant decrease of phosphorylated JNK. Using cell lines, DNAJB3 protein was reduced following treatment with palmitate and tunicamycin which is suggestive of the link between the expression of DNAJB3 and the activation of the endoplasmic reticulum stress. DNAJB3 was also shown to coimmunoprecipiate with JNK and IKKβ stress kinases along with HSP-72 and thus, suggesting its potential role in modulating their activities. Taken together, these data suggest that DNAJB3 can potentially play a protective role against obesity.

Indexed as

Adipose TissueAdultExerciseFemaleHSP40 Heat-Shock ProteinsHumansImmunoprecipitationIn Vitro TechniquesMaleMiddle AgedObesityOxygen ConsumptionPalmitatesTunicamycinDNAJB3 protein, humanHSP40 Heat-Shock ProteinsPalmitatesTunicamycin

Identifiers

PMID23894433
PMCPMC3722167
OpenAlexW2080759855

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.