Evidence map›Paper›PMID 32471509›Full record

ArticleOrphanet journal of rare diseases2020

LIG4 syndrome: clinical and molecular characterization in a Chinese cohort.

Bijun Sun, Qiuyu Chen, Ying Wang, Danru Liu, Jia Hou, Wenjie Wang, Wenjing Ying, Xiaoying Hui, Qinhua Zhou, Jinqiao Sun and 1 more

Open access · goldAbstract read
In one paragraph

Article in Orphanet journal of rare diseases, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
0.8field-weighted citation impact, top 29% 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

16 citing papers in PubMed, 21 citations in OpenAlex.

  1. Review
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  4. Monogenic inflammatory bowel disease: An unfolding enigma.World journal of clinical pediatrics · 2025
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  8. [Two cases of cytopenia associated with multiple malformations].Zhongguo dang dai er ke za zhi = Chinese journal of contemporary pediatrics · 2024
    Article
  9. Review
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  12. Disruption of theJournal of fungi (Basel, Switzerland) · 2023
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  14. DNA damage and repair in the hematopoietic system.Acta biochimica et biophysica Sinica · 2022
    Review
  15. Article
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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

11 authors at 1 institution in 1 country.

Bijun SunDepartment of Clinical Immunology, Children's Hospital of Fudan University, 399 Wanyuan Road, Shanghai, 201102, China.
Qiuyu ChenDepartment of Clinical Immunology, Children's Hospital of Fudan University, 399 Wanyuan Road, Shanghai, 201102, China.
Ying WangDepartment of Clinical Immunology, Children's Hospital of Fudan University, 399 Wanyuan Road, Shanghai, 201102, China.
Danru LiuDepartment of Clinical Immunology, Children's Hospital of Fudan University, 399 Wanyuan Road, Shanghai, 201102, China.
Jia HouDepartment of Clinical Immunology, Children's Hospital of Fudan University, 399 Wanyuan Road, Shanghai, 201102, China.
Wenjie WangDepartment of Clinical Immunology, Children's Hospital of Fudan University, 399 Wanyuan Road, Shanghai, 201102, China.
Wenjing YingDepartment of Clinical Immunology, Children's Hospital of Fudan University, 399 Wanyuan Road, Shanghai, 201102, China.
Xiaoying HuiDepartment of Clinical Immunology, Children's Hospital of Fudan University, 399 Wanyuan Road, Shanghai, 201102, China.
Qinhua ZhouDepartment of Clinical Immunology, Children's Hospital of Fudan University, 399 Wanyuan Road, Shanghai, 201102, China.
Jinqiao SunDepartment of Clinical Immunology, Children's Hospital of Fudan University, 399 Wanyuan Road, Shanghai, 201102, China. jinqiaosun@fudan.edu.cn.
Xiaochuan WangDepartment of Clinical Immunology, Children's Hospital of Fudan University, 399 Wanyuan Road, Shanghai, 201102, China. xchwang@shmu.edu.cn.
Children's Hospital of Fudan University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDNA Ligase IV (LIG4) syndrome is a rare disease with few reports to date. Patients suffer from a broad spectrum of clinical features, including microcephaly, growth retardation, developmental delay, dysmorphic facial features, combined immunodeficiency, and malignancy predisposition. There may be a potential association between genotypes and phenotypes. We investigated the characteristics of LIG4 syndrome in a Chinese cohort.

resultsAll seven patients had growth restriction. Most patients (6/7) had significant microcephaly (< - 3 SD). Recurrent bacterial infections of the lungs and intestines were the most common symptoms. One patient had myelodysplastic syndromes. One patient presented with an inflammatory bowel disease (IBD)-like phenotype. Patients presented with combined immunodeficiency. The proportions of naïve CD4+ and naïve CD8+ T cells decreased notably in five patients. All patients harbored compound heterozygous mutations in the LIG4 gene, which consisted of a missense mutation (c.833G > T, p.R278L) and a deletion shift mutation, primarily c.1271_1275delAAAGA (p.K424Rfs*20). Two other deletion mutations, c.1144_1145delCT and c.1277_1278delAA, were novel. Patients with p.K424Rfs*20/p.R278 may have milder dysmorphism but more significant IgA/IgM deficiency compared to the frequently reported genotype p.R814X/p.K424Rfs*20. One patient underwent umbilical cord blood stem cell transplantation (UCBSCT) but died.

conclusionsThe present study reported the clinical and molecular characteristics of a Chinese cohort with LIG4 syndrome, and the results further expand the phenotypic and genotypic spectrum and our understanding of genotype-to-phenotype correlations in LIG4 syndrome.

Indexed as

Craniofacial AbnormalitiesImmunologic Deficiency SyndromesChinaDNA Ligase ATPGrowth DisordersHumansMutationPhenotypeDNA Ligase ATPLIG4 protein, humanDNA ligase IV syndromeGenetic testingImmunodeficiencyInflammatory bowel diseaseMicrocephaly

Identifiers

PMID32471509
PMCPMC7257218
OpenAlexW3029513567

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LicenceCC BY
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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.