希少なNPHS2遺伝子変異(E130K)を有する遺伝性ステロイド抵抗性ネフローゼ症候群:症例報告
Ramzi Hmedan Mujahed1, Omar Hammam Salloum2, Nimatallah Fares Ishreiteh2
1Department of Pediatrics, Hebron Governmental Hospital, Hebron, State of Palestine.
Case reports in nephrology
|February 2, 2026
まとめ
遺伝子検査によりNPHS2遺伝子変異が明らかになった小児の遺伝性ステロイド抵抗性ネフローゼ症候群(HSRNS)の症例。このまれな疾患の管理には、遺伝子検査と腎生検による早期診断が極めて重要である。
科学分野:
- 小児腎臓病学
- 医学遺伝学
- 希少疾患
背景:
- 遺伝性ステロイド抵抗性ネフローゼ症候群(HSRNS)はまれな遺伝性疾患である。; ポドシンをコードするNPHS2遺伝子の変異は、通常小児期に発症するHSRNSの一般的な原因である。; 非定型的な症状は診断を遅らせる可能性がある。
研究 の 目的:
- 非定型的な症状を呈する若年小児におけるHSRNSの症例を報告する。; HSRNSの診断における遺伝子検査と腎生検の役割を強調する。; NPHS2関連ネフローゼ症候群の遺伝的基盤と管理について論じる。
主な方法:
- 2歳8ヶ月の男性の臨床症例提示。; 尿検査、血清生化学検査、肝機能検査を含む臨床検査。; NPHS2遺伝子変異の遺伝子検査および免疫蛍光を伴う腎生検。
主要な成果:
- 患者は、タンパク尿、低アルブミン血症、高コレステロール血症を呈し、再発熱、痙攣、浮腫を伴って現れた。; NPHS2遺伝子に複合ヘテロ接合変異(R138XおよびE130K)が認められた。; 腎生検では微小変化型ネフローゼが示され、免疫蛍光は陰性であった。
結論:
- 本症例は、特に非定型症状を呈する小児のHSRNSの診断における早期の遺伝子検査と腎生検の重要性を強調する。; NPHS2遺伝子変異の特定は、HSRNSの正確な診断、治療指針、および予後にとって不可欠である。; エナラプリルによる支持療法が患者に開始された。
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