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- W4387165061 abstract "Abstract Background Newborn screening (NBS) for congenital adrenal hyperplasia (CAH) based on hormonal testing is successfully implemented in many countries. However, this method cannot detect non-classic CAH and has high false positive rates. Methods This study aimed to develop a novel MALDI-TOF MS assay that can identify common variants and deletions of CYP21A2 in the Chinese population. Results Thirty-seven clinical patients with CAH confirmed by Sanger sequencing and MLPA analysis were detected by MALDI-TOF MS assay. Two CYP21A2 variants were detected in 30 patients and one CYP21A2 variant was detected in 7 patients. The MALDI-TOF MS assay detected 67 mutant alleles in 37 patients with a detection rate of 90.5%. Sanger sequencing revealed that three variants in seven patients were not included in the designed panel. Eleven distinct CYP21A2 variants were identified, including five missense variants, two nonsense variants, two large gene deletions, one splice variant, and one frameshift variant. The most frequent variant was c.293-13C > G (37.84%), followed by c.518T > A (21.62%) and exon 1–7 deletion (17.57%). Conclusion We have developed a high-throughput MALDI-TOF MS assay that can simultaneously detect common variants and deletions of CYP21A2 . This assay can be used for population-based genetic screening and rapid detection of suspected patients, and is expected to be a valuable complement to biochemical-based testing for the detection of CAH." @default.
- W4387165061 created "2023-09-30" @default.
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- W4387165061 date "2023-09-29" @default.
- W4387165061 modified "2023-10-16" @default.
- W4387165061 title "Rapid detection of common variants and deletions of CYP21A2 using MALDI-TOF MS Short title: CYP21A2 genotyping using MALDI-TOF MS" @default.
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- W4387165061 doi "https://doi.org/10.21203/rs.3.rs-3346560/v1" @default.
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