Evidence map›Paper›PMID 29973665›Full record

SynthesisScientific reports2018

CTLA-4 +49 G/A, a functional T1D risk SNP, affects CTLA-4 level in Treg subsets and IA-2A positivity, but not beta-cell function.

Yang Chen, Shu Chen, Yong Gu, Yingjie Feng, Yun Shi, Qi Fu, Zhixiao Wang, Yun Cai, Hao Dai, Shuai Zheng and 6 more

Open access · goldAbstract readMeta-Analysis
In one paragraph

Synthesis in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.0field-weighted citation impact, top 13% 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

21 citing papers in PubMed, 28 citations in OpenAlex.

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  15. Genome-Wide Identification ofFrontiers in endocrinology · 2022
    Article
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  18. De-coding genetic risk variants in type 1 diabetes.Immunology and cell biology · 2021
    Review
  19. Review
  20. The Influence ofJournal of clinical medicine · 2020
    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

16 authors at 2 institutions in 1 country.

Yang ChenDepartment of Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.
Shu ChenDepartment of Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.
Yong GuDepartment of Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.
Yingjie FengDepartment of Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.
Yun ShiDepartment of Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.
Qi FuDepartment of Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.
Zhixiao WangDepartment of Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.
Yun CaiDepartment of Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.
Hao DaiDepartment of Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.
Shuai ZhengDepartment of Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.
Min SunDepartment of Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.
Mei ZhangDepartment of Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.
Xinyu XuDepartment of Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.
Heng ChenDepartment of Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.
Kuanfeng XuDepartment of Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China. kuanfengxu@njmu.edu.cn.
Tao YangDepartment of Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China. yangt@njmu.edu.cn.
Jiangsu Province Hospital · CNNanjing Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

To investigate whether CTLA-4 +49 G/A (rs231775), a tagSNP in Asian, is a functional T1D SNP, we genotyped this SNP with 1035 T1D patients and 2575 controls in Chinese Han population. And 1280 controls measured insulin release and sensitivity based on an oral glucose tolerance test; 283 newly diagnosed T1D patients assayed C-peptide level based on a mixed-meal tolerance test. 31 controls were analyzed for different T cell subsets by multi-color flow cytometry. Under additive model, we found that CTLA-4 +49 G/A was significantly associated with T1D (P = 2.82E-04, OR = 1.25, 95% CI: 1.12-1.41), which was further confirmed by meta-analysis (P = 1.19E-08, OR = 1.65, 95% CI: 1.38-1.96) in Chinese Han population. Although we did not find any association between this SNP and beta-cell function in either healthy individuals or newly diagnosed T1D patients, healthy individuals carrying GG/GA genotypes had lower CTLA-4 expression in naïve or activated CD4 Treg subsets (P = 0.0046 and 0.0317 respectively). A higher positive rate of IA-2A was observed among T1D patients with GG genotype compared with AA (OR = 0.51, 95% CI: 0.30-0.84, p = 0.008). Collectively, CTLA-4 +49 G/A reached a GWAS significant association with T1D risk in Chinese Han population, affects CTLA-4 expression in Treg subsets and subsequently humoral immunity in T1D patients.

Indexed as

AdultAsian PeopleC-PeptideCTLA-4 AntigenDiabetes Mellitus, Type 1FemaleGene Expression RegulationGenetic Association StudiesGenetic Predisposition to DiseaseGenotypeGlucose Tolerance TestHumansInsulinMaleMiddle AgedPolymorphism, Single NucleotideC-PeptideCTLA-4 AntigenCTLA4 protein, humanInsulinPTPRN protein, humanReceptor-Like Protein Tyrosine Phosphatases, Class 8

Identifiers

PMID29973665
PMCPMC6031668
OpenAlexW2810639681

What OpenQuestion holds

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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.