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Abnormal Cystatin C Levels in Two Patients with Bardet-Biedl Syndrome

Bardet-Biedl syndrome (BBS) is an autosomal recessive disorder characterized by central obesity, mental impairment, rod-cone dystrophy, polydactyly, hypogonadism in males, and renal abnormalities. The causative genes have been identified as BBS1-14. In the Western countries, the prevalence of this d...

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Detalles Bibliográficos
Autores principales: Hirano, Makito, Ohishi, Mitsuru, Yamashita, Toshihide, Ikuno, Yasushi, Iwahashi, Hiromi, Mano, Toshiyuki, Ishihara, Ryu, Tanaka, Ichiro, Yanagihara, Keiko, Isono, Chiharu, Sakamoto, Hikaru, Nakamura, Yusaku, Kusunoki, Susumu
Formato: Texto
Lenguaje:English
Publicado: Libertas Academica 2011
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3096431/
https://www.ncbi.nlm.nih.gov/pubmed/21769262
http://dx.doi.org/10.4137/CCRep.S6622
Descripción
Sumario:Bardet-Biedl syndrome (BBS) is an autosomal recessive disorder characterized by central obesity, mental impairment, rod-cone dystrophy, polydactyly, hypogonadism in males, and renal abnormalities. The causative genes have been identified as BBS1-14. In the Western countries, the prevalence of this disease ranges from 1/13,500 to 1/160,000, while only a few Japanese patients have been reported in the English-language literature. The incidence of renal dysfunction or anomalies in previous reports varies considerably ranging from ∼20% to universal occurrence. We here report that two Japanese patients who had BBS with normal BUN and creatinine levels had elevated levels of cystatin C, a sensitive marker of glomerular filtration rate. A urine albumin level increased only in the elder patient. Thus, cystatin C may be useful for detecting renal abnormalities in patients with an apparent normal renal function. Because this disease is diagnosed by accumulation of symptoms, such a sensitive marker might help early diagnosis of BBS.