Evidence mapPaperPMID 33504933Full record

ArticleInternational journal of obesity (2005)2021

Bariatric surgery leads to an improvement in small nerve fibre damage in subjects with obesity.

Shazli Azmi, Maryam Ferdousi, Yifen Liu, Safwaan Adam, Zohaib Iqbal, Shaishav Dhage, Georgios Ponirakis, Tarza Siahmansur, Andrew Marshall, Ioannis Petropoulos and 8 more

Abstract read
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In one paragraph

Article in International journal of obesity (2005), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
8.4field-weighted citation impact, top 1% 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

19 citing papers in PubMed, 51 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

18 authors at 5 institutions in 2 countries.

Shazli AzmiDivision of Cardiovascular Sciences, School of Medical Sciences, Core Technology Facility, University of Manchester, Manchester, UK.
Maryam FerdousiDivision of Cardiovascular Sciences, School of Medical Sciences, Core Technology Facility, University of Manchester, Manchester, UK.
Yifen LiuDivision of Cardiovascular Sciences, School of Medical Sciences, Core Technology Facility, University of Manchester, Manchester, UK.
Safwaan AdamDivision of Cardiovascular Sciences, School of Medical Sciences, Core Technology Facility, University of Manchester, Manchester, UK.ORCID http://orcid.org/0000-0001-8004-1897
Zohaib IqbalDivision of Cardiovascular Sciences, School of Medical Sciences, Core Technology Facility, University of Manchester, Manchester, UK.
Shaishav DhageDivision of Cardiovascular Sciences, School of Medical Sciences, Core Technology Facility, University of Manchester, Manchester, UK.
Georgios PonirakisWeill Cornell Medicine-Qatar, Doha, Qatar.ORCID http://orcid.org/0000-0002-6936-1248
Tarza SiahmansurDivision of Cardiovascular Sciences, School of Medical Sciences, Core Technology Facility, University of Manchester, Manchester, UK.
Andrew MarshallInstitute of Life course and Medical Sciences, University of Liverpool, Liverpool, UK.
Ioannis PetropoulosWeill Cornell Medicine-Qatar, Doha, Qatar.
Alise KaltenieceDivision of Cardiovascular Sciences, School of Medical Sciences, Core Technology Facility, University of Manchester, Manchester, UK.
Jan Hoong HoDivision of Cardiovascular Sciences, School of Medical Sciences, Core Technology Facility, University of Manchester, Manchester, UK.
Akheel SyedDepartment of Diabetes and Endocrinology, Salford Royal Trust NHS Foundation Trust, Salford, UK.ORCID http://orcid.org/0000-0001-8696-7121
John M GibsonDepartment of Diabetes and Endocrinology, Salford Royal Trust NHS Foundation Trust, Salford, UK.
Basil J AmmoriDivision of Cardiovascular Sciences, School of Medical Sciences, Core Technology Facility, University of Manchester, Manchester, UK.
Paul N DurringtonDivision of Cardiovascular Sciences, School of Medical Sciences, Core Technology Facility, University of Manchester, Manchester, UK.
Rayaz A MalikDivision of Cardiovascular Sciences, School of Medical Sciences, Core Technology Facility, University of Manchester, Manchester, UK.
Handrean SoranDivision of Cardiovascular Sciences, School of Medical Sciences, Core Technology Facility, University of Manchester, Manchester, UK. hsoran@aol.com.ORCID http://orcid.org/0000-0003-1714-5014
University of Manchester · GBSalford Royal NHS Foundation Trust · GBUniversity Dental Hospital of Manchester · GBWeill Cornell Medical College in Qatar · QAUniversity of Liverpool · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionSubjects with obesity have metabolic risk factors for nerve fibre damage. Because bariatric surgery improves these risk factors we have assessed whether this can ameliorate nerve fibre damage.

methodsTwenty-six obese subjects without diabetes (age: 46.23 ± 8.6, BMI: 48.7 ± 1.5, HbA1c: 38.0 ± 4.5) and 20 controls (age: 48.3 ± 6.2, BMI: 26.8 ± 4.2, HbA1c: 39.1 ± 2.6) underwent detailed assessment of neuropathy at baseline and 12 months after bariatric surgery.

resultsObese subjects had normal peroneal (45.9 ± 5.5 vs. 48.1 ± 4.5, P = 0.1) and sural (46.9 ± 7.6 vs. 47.9 ± 10.6, P = 0.1) nerve conduction velocity, but a significantly higher neuropathy symptom profile (NSP) (4.3 ± 5.7 vs. 0.3 ± 0.6, P = 0.001), vibration perception threshold (VPT) (V) (10.2 ± 6.8 vs. 4.8 ± 2.7, P < 0.0001), warm threshold (C°) (40.4 ± 3.5 vs. 37.2 ± 1.8, P = 0.003) and lower peroneal (3.8 ± 2.2 vs. 4.9 ± 2.2, P = 0.02) and sural (8.9 ± 5.8 vs. 15.2 ± 8.5, P < 0.0001) nerve amplitude, deep breathing-heart rate variability (DB-HRV) (beats/min) (21.7 ± 4.1 vs. 30.1 ± 14, P = 0.001), corneal nerve fibre density (CNFD) (n/mm

conclusionObese subjects have evidence of neuropathy, and bariatric surgery leads to an improvement in weight, HbA1c, lipids, neuropathic symptoms and deficits and small nerve fibre regeneration without a change in quantitative sensory testing, autonomic function or neurophysiology.

Indexed as

CorneaObesityAdultBariatric SurgeryCohort StudiesFemaleHumansMaleMiddle AgedNerve Fibers

Identifiers

PMID33504933
OpenAlexW3124315718

What Socratic 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 Socratic graph.