Evidence map›Paper›PMID 40176065›Full record

SynthesisOrphanet journal of rare diseases2025

Application value of long-read sequencing in full characterization of thalassemia-associated structural variations: identifying a novel large segmental duplication and literature review.

Zeyan Zhong, Ganwei Zheng, Dina Zhu, Yongqiong Liu, Zezhang Lin, Zhiyang Guan, Fu Xiong, Jianhong Chen, Xuan Shang

Abstract readSystematic Review
In one paragraph

Synthesis in Orphanet journal of rare diseases, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–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. Review
  2. Review
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

9 authors.

Zeyan Zhong *Department of Medical Genetics and Prenatal Diagnosis, Huizhou First Maternal and Child Health Care Hospital, Huizhou, Guangdong, China.
Ganwei Zheng *Department of Medical Genetics, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, 510515, China.
Dina ZhuPrenatal Diagnosis Center, Department of Obstetrics and Gynecology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China.
Yongqiong LiuReproductive Medicine Center, Jiangxi Maternal and Child Health Hospital Afliated to Nanchang Medical College, Nanchang, Jiangxi, China.
Zezhang LinDepartment of Medical Genetics, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, 510515, China.
Zhiyang GuanDepartment of Medical Genetics and Prenatal Diagnosis, Huizhou First Maternal and Child Health Care Hospital, Huizhou, Guangdong, China.
Fu XiongDepartment of Medical Genetics, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, 510515, China.
Jianhong ChenDepartment of Medical Genetics and Prenatal Diagnosis, Huizhou First Maternal and Child Health Care Hospital, Huizhou, Guangdong, China. jhchen1212@hotmail.com.
Xuan ShangDepartment of Medical Genetics, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, 510515, China. shang80@smu.edu.cn.ORCID http://orcid.org/0000-0003-1358-0879

Funding

Basic and Applied Basic Research Foundation of Guangdong Province 2024A1515012748Guangdong Medical Research Foundation A2024084Guangdong Medical Research Foundation A2024278National Natural Science Foundation of China 82370122
6 · The paper itself

Abstract

backgroundThalassemia is one of the most prevalent monogenic disorders in tropical and subtropical regions, imposing significant familial and social burdens on local populations. It is caused by point mutations or structural variations (SVs) in the α- or β-globin gene clusters. Due to the complex structure, full characterization of SVs has always been the focus and difficulty of molecular diagnosis of thalassemia patients.

methodsPeripheral blood of a Chinese boy with β-thalassemia intermedia phenotype and his family members were collected. Multiplex ligation dependent probe amplification (MLPA), long-read sequencing (LRS) and Sanger sequencing were used to analyze the variant in this family.

resultsA novel large duplication (αααα

conclusionsOur study identified a novel SV in the α-globin gene cluster and demonstrated that LRS was a superior approach for detecting novel rare SVs. The appropriate use of LRS significantly improves diagnostic accuracy when conventional methods are not capable of completely identifying complex SVs.

Indexed as

beta-ThalassemiaThalassemiaalpha-Globinsbeta-GlobinsHumansMalealpha-Globinsbeta-GlobinsLong-read sequencingStructural variationThalassemia

Identifiers

PMID40176065
PMCPMC11963660

What Socratic holds

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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 Socratic graph.