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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 Braz+J+Med+Biol+Res
2018 ; 51
(3
): e6560
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Identification of a novel UMOD mutation (c 163G A) in a Brazilian family with
autosomal dominant tubulointerstitial kidney disease
#MMPMID29513881
Lopes LB
; Abreu CC
; Souza CF
; Guimaraes LER
; Silva AA
; Aguiar-Alves F
; Kidd KO
; Kmoch S
; Bleyer AJ
; Almeida JR
Braz J Med Biol Res
2018[Mar]; 51
(3
): e6560
PMID29513881
show ga
Autosomal dominant tubulointerstitial kidney disease (ADTKD) is characterized by
autosomal dominant inheritance, progressive chronic kidney disease, and a bland
urinary sediment. ADTKD is most commonly caused by mutations in the UMOD gene
encoding uromodulin (ADTKD-UMOD). We herein report the first confirmed case of a
multi-generational Brazilian family with ADTKD-UMOD, caused by a novel
heterozygous mutation (c.163G>A, GGC?AGC, p.Gly55Ser) in the UMOD gene. Of 41
family members, 22 underwent genetic analysis, with 11 individuals found to have
this mutation. Three affected individuals underwent hemodialysis, one peritoneal
dialysis, and one patient received a kidney transplant from a family member later
found to be genetically affected. Several younger individuals affected with the
mutation were also identified. Clinical characteristics included a bland urinary
sediment in all tested individuals and a kidney biopsy in one individual showing
tubulointerstitial fibrosis. Unlike most other reported families with ADTKD-UMOD,
neither gout nor hyperuricemia was found in affected individuals. In summary, we
report a novel UMOD mutation in a Brazilian family with 11 affected members, and
we discuss the importance of performing genetic testing in families with
inherited kidney disease of unknown cause.