Evidence map›Paper›PMID 41603151›Full record

ArticleJournal of diabetes investigation2026

Immune cell infiltration correlates with intestinal permeability, inflammation, and gastrointestinal symptoms in type 1 diabetes.

Polina Zalizko, Reinis Isaks, Leonora Pahirko, Aleksejs Fedulovs, Eduards Krustins, Jurijs Nazarovs, Sergejs Dubencovs, Hanne Salmenkari, Markku Lehto, Kaspars Jēkabsons and 4 more

Abstract read
In one paragraph

Article in Journal of diabetes investigation, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
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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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

14 authors.

Polina ZalizkoFaculty of Medicine and Life Sciences, Department of Clinical and Personalized Medicine, University of Latvia, Riga, Latvia.ORCID https://orcid.org/0000-0003-3657-6418
Reinis IsaksFaculty of Science and Technology, University of Latvia, Riga, Latvia.
Leonora PahirkoFaculty of Science and Technology, University of Latvia, Riga, Latvia.
Aleksejs FedulovsFaculty of Medicine and Life Sciences, Department of Clinical and Personalized Medicine, University of Latvia, Riga, Latvia.
Eduards KrustinsFaculty of Medicine and Life Sciences, Department of Clinical and Personalized Medicine, University of Latvia, Riga, Latvia.
Jurijs NazarovsDepartment of Pathology, Riga Stradins University, Riga, Latvia.
Sergejs DubencovsInstitute of Pathology, Pauls Stradins Clinical University Hospital, Riga, Latvia.
Hanne SalmenkariFolkhälsan Research Center, Helsinki, Finland.
Markku LehtoFolkhälsan Research Center, Helsinki, Finland.
Kaspars JēkabsonsFaculty of Medicine and Life Sciences, Department of Pharmaceutical Sciences, University of Latvia, Riga, Latvia.
Una RiekstiņaFaculty of Medicine and Life Sciences, Department of Pharmaceutical Sciences, University of Latvia, Riga, Latvia.
Per-Henrik GroopFolkhälsan Research Center, Helsinki, Finland.
Niina SandholmFolkhälsan Research Center, Helsinki, Finland.
Jeļizaveta SokolovskaFaculty of Medicine and Life Sciences, Department of Clinical and Personalized Medicine, University of Latvia, Riga, Latvia.

Funding

Finnish Diabetes Research FoundationFolkhälsan Research FoundationLatvian Council of Science lzp-2020/1-0138Liv och Hälsa SocietyWilhelm and Else Stockmann Foundation
6 · The paper itself

Abstract

AIMS/

introductionOur study explores interconnections between the occurrence of gastrointestinal (GI) symptoms with immunohistochemical analysis of colon biopsies, markers of intestinal permeability, and inflammation in individuals with type 1 diabetes. MATERIAL AND

methodsTwenty subjects with type 1 diabetes and seven healthy controls underwent colonoscopy. Colon biopsy materials were analyzed immunohistochemically for CD3+, CD20+, CD4+, CD8+, CD138+, and CD68+ cell counts. The levels of lipopolysaccharide (LPS), LPS-binding protein (LBP), and endogenous anti-endotoxin core antibodies (EndoCAb IgG and IgM) were measured in serum. Fecal calprotectin, immunoglobulin A (IgA), albumin, protein, and intestinal alkaline phosphatase (IAP) activity were analyzed in patient subgroups.

resultsImmune cell infiltration in lamina propria did not differ between type 1 diabetes and control subjects. In type 1 diabetes, the number of CD20+, CD8+, CD138+, and CD68+ cells correlated with several GI symptoms and usage of medications for diarrhea. Fecal calprotectin correlated positively with the number of CD20+ B cells, CD3+ T cells, and CD138+ plasma cells. A negative correlation was found between CD20+ B-cell number and fecal IgA, while CD68+ macrophage number correlated positively with fecal albumin. Serum EndoCAb IgM correlated negatively with CD138+ plasma cells and CD4+ T cells, and positively with CD68+ macrophages. Serum LBP correlated negatively with CD4+ T cells, demonstrating links between gut mucosal inflammation and the systemic response to endotoxin.

conclusionsIn type 1 diabetes, CD immune cell infiltration in the colon mucosa tended to correlate with fecal and systemic markers of inflammation and gastrointestinal symptoms. A key direction for future studies will be to elucidate the underlying pathogenic mechanisms.

Indexed as

Diabetes Mellitus, Type 1Gastrointestinal DiseasesInflammationIntestinal MucosaAdolescentAdultBiomarkersCase-Control StudiesFemaleHumansIntestinal Barrier FunctionMaleMiddle AgedPermeabilityPrognosisYoung AdultBiomarkersColonoscopyIntestinal PermeabilityType 1 diabetes

Identifiers

PMID41603151
PMCPMC12950930

What Socratic holds

Textmetadata
LicenceCC BY-NC-ND
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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 Socratic graph.