• 제목/요약/키워드: Juvenile nephronophthisis

검색결과 2건 처리시간 0.014초

Clinical features of Senior-Loken syndrome with IQCB1/NPHP5 mutation in a Filipino man

  • Chiu, Harold Henrison C.;Sucaldito, Ma. Sergia Fatima P.;Maceda, Ebner Bon G.;Montemayor, Jan Andre S.;Tamondong-Lachica, Diana R.
    • Journal of Genetic Medicine
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    • 제17권1호
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    • pp.39-42
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    • 2020
  • The Senior-Loken syndrome was first described in 1961 as an oculo-renal disease consisting of familial juvenile nephronophthisis and Leber congenital amaurosis. It is a rare autosomal recessive disorder with a prevalence of 1:1,000,000 caused by mutations in nine genes (NPHP 1-8 and NPHP 10). Ocular manifestations (e.g., photophobia, nystagmus, and extreme hyperopia) occur within the first few years of life while renal manifestations (e.g., formation of multiple cysts impairing kidney function and end-stage renal disease) appear in late childhood to adolescence. Here, we report a case of a Filipino male presenting with rotatory nystagmus and progressive deterioration of vision since childhood. He had congenital amaurosis and juvenile nephronophthisis that progressed to end stage renal disease by age 19. All laboratory and imaging findings were consistent with chronic kidney disease. Molecular genetic testing of ciliopathy-related genes was performed revealing a homozygous mutation in exon 11 of the IQCB1/NPHP5 gene, c.1090C>T (p.Arg364). This sequence change created a premature translational stop signal resulting in a truncated protein product, nephrocystin-5 and its consequent loss of function. His symptoms eventually improved with initiation dialysis. The prognosis of Senior-Loken syndrome remains dismal and a high index of suspicion, early diagnosis and timely intervention of renal complications are warranted.

남매에서 발견 된 $Senior-L\ddot{o}ken$ 증후군 2례 (Two Cases of $Senior-L\ddot{o}ken$ Syndrome in Siblings)

  • 최정연;김용진;박용훈
    • Childhood Kidney Diseases
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    • 제11권1호
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    • pp.112-117
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    • 2007
  • 저자들은 Leber의 선청성 흑암시를 진단받은 남매에서 성장 부전, 다음, 다뇨 및 야뇨증의 병력 없이 소아기에 만성 신부전으로 진행된 사춘기 콩팥 황폐증을 경험하여 우리나라에서는 드문 $Senior-L\ddot{o}ken$ 증후군을 보고하는 바이다.

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