Evidence map›Paper›PMID 39025795›Full record

ArticleBMJ open diabetes research & care2024

Assessment of neuropathy subtypes in type 1 diabetes.

Pall Karlsson, Marie Balle Sjogaard, Karoline Schousboe, Hatice Isik Mizrak, Huda Kufaishi, Troels Staehelin Jensen, Jens Randel Nyengaard, Christian Stevns Hansen, Knud Bonnet Yderstræde, Christian Selmer Buhl

Abstract read
In one paragraph

Article in BMJ open diabetes research & care, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

2 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
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.

Pall Karlsson *Danish Pain Research Center, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark pall@clin.au.dk.ORCID 0000-0001-7082-9576
Marie Balle Sjogaard *Danish Pain Research Center, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark.
Karoline SchousboeSteno Diabetes Center Odense, Odense University Hospital, Odense, Denmark.
Hatice Isik MizrakSteno Diabetes Center Copenhagen, Herlev, Denmark.
Huda KufaishiSteno Diabetes Center Copenhagen, Herlev, Denmark.
Troels Staehelin JensenDanish Pain Research Center, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark.
Jens Randel NyengaardCore Center for Molecular Morphology, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark.
Christian Stevns HansenSteno Diabetes Center Copenhagen, Herlev, Denmark.
Knud Bonnet YderstrædeSteno Diabetes Center Odense, Odense University Hospital, Odense, Denmark.
Christian Selmer BuhlSteno Diabetes Center Aarhus, Aarhus University Hospital, Aarhus, Denmark.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionDiabetic polyneuropathy (DPN), a common complication of diabetes, can manifest as small, large, or mixed fiber neuropathy (SFN, LFN, and MFN, respectively), depending on the type of fibers involved. Despite evidence indicating small fiber involvement prior to large fiber involvement in type 1 diabetes mellitus (T1DM)-associated DPN, no evidence has been produced to determine the more prevalent subtype. We aim to determine the more prevalent type of nerve fiber damage-SFN, LFN, and MFN-in T1DM-associated DPN, both with and without pain. RESEARCH DESIGN AND

methodsIn this cross-sectional study, participants (n=216) were divided into controls; T1DM; T1DM with non-painful DPN (NP-DPN); and T1DM with painful DPN (P-DPN). DPN was further subgrouped based on neuropathy severity. The more prevalent type of fiber damage was determined applying small and large fiber-specific tests and three diagnostic models: model 1 (≥1 abnormal test); model 2 (≥2 abnormal tests); and model 3 (≥3 abnormal tests).

resultsMFN showed the highest prevalence in T1DM-associated DPN. No differences in neuropathy subtype were found between NP-DPN and P-DPN. DPN, with prevalent SFN plateaus between models 2 and 3. All models showed increased prevalence of MFN according to DPN severity. Model 3 showed increased DPN with prevalent LFN in early neuropathy. DPN with prevalent SFN demonstrated a similar, but non-significant pattern.

conclusionsDPN primarily manifests as MFN in T1DM, with no differentiation between NP-DPN and P-DPN. Additionally, we propose model 2 as an initial criterion for diagnosing DPN with a more prevalent SFN subtype in T1DM. Lastly, the study suggests that in mild stages of DPN, one type of nerve fiber (either small or large) is more susceptible to damage.

Indexed as

Diabetes Mellitus, Type 1Diabetic NeuropathiesAdultCase-Control StudiesCross-Sectional StudiesFemaleFollow-Up StudiesHumansMaleMiddle AgedNerve FibersNeural ConductionPrevalencePrognosisSeverity of Illness Indexdiabetes complicationsdiabetes mellitus, type 1diabetic neuropathiespain

Identifiers

PMID39025795
PMCPMC11261698

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Registered trials

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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.