Phenotype-integrated reinterpretation of laboratory-reported ABCA4 gene sequencing results improves molecular diagnostic rate in Black/non-White patients and those with late-onset Stargardt macular dystrophy

Dorothy Wang; Bani Antonio-Aguirre; Annabelle Pan; Maria Ludovica Ruggeri; Setu Mehta; Christy A. Smith; Kelsey S. Guthrie; Carolyn Applegate; Jefferson J. Doyle; Mandeep Singh

doi:10.1080/13816810.2026.2621864

March 16, 2026Ophthalmic GeneticsOpen Access

Phenotype-integrated reinterpretation of laboratory-reported ABCA4 gene sequencing results improves molecular diagnostic rate in Black/non-White patients and those with late-onset Stargardt macular dystrophy

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Key Points

This research aims to evaluate how reinterpretation of ABCA4 gene sequencing can enhance diagnostic rates, especially in specific populations.
Conducted posttest reinterpretation of ABCA4 gene sequencing results.
Focused on Black individuals and patients with late-onset Stargardt macular dystrophy.
Emphasized the importance of ancestry-informed interpretation and genotype-phenotype correlations.
Diagnostic yield improved significantly for Black and late-onset STGD patients.
Ancestry-informed approaches were highlighted as critical for accurate interpretation.
Genotype-phenotype correlation played a significant role in enhancing diagnostics.

Implication

Posttest reinterpretation enhances molecular diagnostic rates in Black and late-onset Stargardt patients, suggesting ancestry-informed approaches are valuable.

Abstract

Posttest reinterpretation improves diagnostic yield, particularly for Black and late-onset STGD patients, underscoring the value of ancestry-informed interpretation, historical reanalysis, and genotype-phenotype correlation.

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Cite This Study

Wang et al. (2026) studied this question.

synapsesocial.com/papers/69bb92ae496e729e629801e8 https://doi.org/10.1080/13816810.2026.2621864

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Phenotype-integrated reinterpretation of laboratory-reported ABCA4 gene sequencing results improves molecular diagnostic rate in Black/non-White patients and those with late-onset Stargardt macular dystrophy

Key Points

Implication

Abstract

Discussion

Cite This Study

Phenotype-integrated reinterpretation of laboratory-reported ABCA4 gene sequencing results improves molecular diagnostic rate in Black/non-White patients and those with late-onset Stargardt macular dystrophy

Key Points

Implication

Abstract

Discussion

Cite This Study

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