ArticleFrontiers in immunology2024
Newborn screening for SCID: the very first prospective pilot study from Türkiye.
Article in Frontiers in immunology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- T-Cell Receptor Excision Circle/Kappa-Deleting Recombination Excision Circle-Based Newborn Screening Program for Severe Combined Immunodeficiency in Kumamoto, Japan.Cell biochemistry and biophysics · 2026Article
- Diagnostic yield and clinical impact of genetic testing in inborn errors of immunity: lessons from a large Turkish cohort.European journal of pediatrics · 2026Article
- Early Clinical Warning Signs of Inborn Errors of Immunity in the Neonatal Intensive Care Unit: A Retrospective Observational Study.Sisli Etfal Hastanesi tip bulteni · 2026Article
- X-linked severe combined immunodeficiency due toFrontiers in immunology · 2026Article
- Harmonizing TREC Thresholds in Newborn Screening for SCID: Insights From Russian Validation Cohort.Journal of clinical laboratory analysis · 2025Article
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Authors and funding
19 authors.
Funding
Abstract
Purpose: The measurement of T-cell receptor excision circle (TREC) is used for newborn screening (NBS) in dried blood spot (DBS) samples from Guthrie card for severe combined immunodeficiency (SCID). Here, we report the results of first newborn screening pilot program for SCID conducted in Türkiye. Methods: The study was carried out together with Ankara University School of Medicine and The Ministry of Health, Public Health General Directorate, Pediatric and Adolescent Health Department. TREC measurements were performed in randomly selected Guthrie card samples obtained from 20253 babies born between October 2018 and October 2020. The TREC analyses were performed together with beta Actin (β-Actin) via RT-PCR (Real Time Polymerase Chain Reaction). Results: TRECs found to be normal (≥15 copies/µl) in 98,6% of the newborns (n: 19975) but low (<15 copies/µl) in 1.4% (n:278) at the initial analyses. TRECs were retested in 278 suspected infants and found to be normal in 160 (0.8%) while low in 118 (0.58%). New DBS were obtained from the babies with low TRECs (new sample test). TRECs were normal in 108 (0.53%) of the new sample tests and low in 10 (0.049%). Two among 10 babies who had abnormal (undetectable) TRECs were diagnosed as SCID; ADA (P1) and RAG1 (P2) defects were confirmed respectively. They both received curative treatments [gene therapy (P1) and HSCT (P2)]. The remaining 6 of 8 newborns with abnormal TRECs were found normal after clinical and laboratory immune work-up, while medical records of other two revealed early postnatal death due to extreme prematurity. Conclusion: In the light of this study the incidence of SCID was detected at least 1/10000 live births in Türkiye. This study shows the feasibility and usefulness of initiating SCID screening in Türkiye.
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