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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Ann+Pediatr+Endocrinol+Metab
2014 ; 19
(1
): 36-41
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A novel de novo mutation within PHEX gene in a young girl with hypophosphatemic
rickets and review of literature
#MMPMID24926462
Cheon CK
; Lee HS
; Kim SY
; Kwak MJ
; Kim GH
; Yoo HW
Ann Pediatr Endocrinol Metab
2014[Mar]; 19
(1
): 36-41
PMID24926462
show ga
X-linked hypophosphatemia (XLH) is the most common form of familial
hypophosphatemic rickets and it is caused by loss-of-function mutations in the
PHEX gene. Recently, a wide variety of PHEX gene defects in XLH have been
revealed; these include missense mutations, nonsense mutations, splice site
mutations, insertions, and deletions. Recently, we encountered a
2-year-9-month-old female with sporadic hypophosphatemic rickets. She underwent
osteotomy, dental abscess was evident, and there was severe bowing of the legs. A
low serum phosphorus level in combination with elevated serum alkaline
phosphatase activity and normal serum calcium is suggestive of hypophosphatemic
rickets. PHEX gene analysis revealed a splice acceptor site mutation, c.934-1G>T
(IVS8(-1)G>T), at the intron8 and exon9 junction. To the best of our knowledge,
this mutation is novel and has not been reported. The results of this study
expand and improve our understanding of the clinical and molecular
characteristics and the global pool of patients with sporadic hypophosphatemic
rickets.