7q11.23コピー数変異の出生前診断:後向き症例シリーズ
Jiong Yan1, Ziyang Liu2, Song Yi3
1Department of Administration Office, Maternal and Child Health Hospital of Hubei Province, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
Molecular genetics & genomic medicine
|January 6, 2026
まとめ
ウィリアムズ・ビュレン症候群(WBS)の出生前診断には、様々な超音波異常を示すコピー数変異(CNV)が関与する。WBSの正確な診断とカウンセリングには、遺伝子検査と遺伝解析が不可欠である。
科学分野:
- 遺伝学、出生前診断、ヒト疾患
背景:
- ウィリアムズ・ビュレン症候群(WBS)は7q11.23欠失によって引き起こされるが、出生前の兆候は十分に定義されていない。本研究は、7q11.23コピー数変異(CNV)の出生前フェノタイプ、遺伝、および転帰の理解に焦点を当てる。
主な方法:
- 7q11.23 CNVを有する20例の出生前症例の後向き解析。SNPアレイまたはCNVシーケンシング(CNV-seq)による診断確定。超音波所見、遺伝学的結果、および妊娠転帰の評価。
結論:
- 7q11.23 CNVは、著しい出生前フェノタイプの多様性と遺伝の不均一性を示す。正確な出生前診断には、高度なゲノム検査が不可欠である。遺伝パターン解析は、WBSの遺伝カウンセリングに役立つ。
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