CTNS gene mutation leads to cysteine nephropathy combined with corneal crystal in young child / 临床儿科杂志
Journal of Clinical Pediatrics
;
(12): 783-786, 2016.
Article
in Chinese
| WPRIM
| ID: wpr-502848
ABSTRACT
Objective To explore the diagnosis of cystinosis.Methods The clinical and biochemical information, and gene detection results in a child with cystinosis was retrospective analyzed.Results Four-year-old female presented with photophobia and corneal crystal was found by ophthalmic examination at 2 years old, bilateral kidney stone was found, accompanied by development delay and rickets at 3 years old. Gas chromatography analysis in urine showed that a variety of amino acids were increased, and urine sugar and urinary micro-protein were also increased, which were in accordance with fanconi syndrome. The blood free carnitine was decreased, ester acyl carnitine spectrum was normal, and multi-amino acids such as lysine, valine and arginine were decreased. Gene analysis showed a homozygous mutation of c.696C>G (p.323 N>K) inCTNS gene, which was a known mutation. Both her parents were carrier of heterozygous mutation of c.696C>G inCTNS gene.Conclusion Child with kidney stone, renal damage, combined by multi-system damage such as eyes, bone, and thyroid should be paid attention to identify the cystinosis.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Journal of Clinical Pediatrics
Year:
2016
Type:
Article
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