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April 30, 2026Hematology0 citationsOpen Access

First report of a rare hemoglobin variant in the Chinese population: clinical and hematological characteristics of Hb Norton HBA2:c.217C>G and its impact on HbA1c testing: a case report

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JSJian ShangZCZirui CaoWCWeidong Chen

Key Points

  • To report the clinical and hematological characteristics of the Hb Norton variant and its impact on HbA1c testing.
  • Identified the Hb Norton variant [HBA2:c.217C>G] in a individual from the Chinese population.
  • Conducted hematological analysis and assessed HbA1c testing results.
  • Detection of abnormally high HbA1c values in the presence of Hb Norton variant.
  • Suggested that variant interference should be considered when interpreting HbA1c results.

Abstract

OBJECTIVES: testing. Here, we first report a rare Hb variant, Hb Norton HBA2:c.217C>G, in the Chinese population. METHODS AND RESULTS: values. CONCLUSIONS: analysis. When encountering abnormally high values that are difficult to explain, one should consider whether variant interference is present.

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Cite This Study

Shang et al. (2026) studied this question.

synapsesocial.com/papers/69f2f0e31e5f7920c6386e65https://doi.org/10.1080/16078454.2026.2665490
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