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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 Front+Pediatr
2015 ; 3
(ä): 82
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A Case of New Familiar Genetic Variant of Autosomal Dominant Polycystic Kidney
Disease-2: A Case Study
#MMPMID26501044
Litvinchuk T
; Tao Y
; Singh R
; Vasylyeva TL
Front Pediatr
2015[]; 3
(ä): 82
PMID26501044
show ga
BACKGROUND: Autosomal dominant polycystic kidney disease (ADPKD) is characterized
by renal cyst formation due to mutations in genes coding for polycystin-1 [PKD1
(85-90% of cases), on ch 16p13.3] and polycystin-2 [PKD2 (10-15% of cases), on ch
4q13-23] and PKD3 gene (gene unmapped). It is also associated with TSC2/PKD1
contiguous gene syndrome. ADPKD is usually inherited, but new mutations without a
family history occur in approximately 10% of the cases. CASE PRESENTATION: A
17-year-old boy was followed up for bilateral cystic kidney disease,
hypertension, and obesity since he was 13 years old. The diagnosis was an
accidental finding during abdominal CT at age 13 to rule out appendicitis. A
renal ultrasonogram also demonstrated a multiple bilateral cysts. Because of
parental history of bilateral renal cysts, PKD1 and PKD2, genetic testing was
ordered. Results showed, PKD2 variant 1:3?bp deletion of TGT; nucleotide
position: 1602-1604; codon position: 512-513; mRNA reading frame maintained. The
same mutation was later identified in his father. CONCLUSION: A smaller number of
patients have a defect in the PKD2 locus on chromosome 4 (resulting in PKD2
disease). There are no known published cases on this familiar genetic variant of
ADPKD-2 cystic kidney disease. In this case, the disease is present unusually
early in life.