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Resolution of Hydronephrosis in a Patient With Mucopolysaccharidosis Type II With Enzyme Replacement Therapy
Kei Nishiyama1, Takashi Imai1, Kazuhiro Ohkubo1
1Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Higashi-ku, Fukuoka, Japan.
Abstract:
Mucopolysaccharidosis type II (MPS II) is caused by deficiency of lysosomal enzyme iduronate-2-sulfatase. Insufficient activity of the enzyme results in accumulation of glycosaminoglycans leading to progressive multisystem pathologies. MPS II is less likely to be complicated by kidney and urinary tract problems. We report a boy with MPS II, who developed left hydronephrosis. His hydronephrosis improved after starting enzyme replacement therapy. It was suggested that MPS II was closely associated with the pathogenesis of hydronephrosis.
Insights
Mucopolysaccharidosis type II (MPS II), a genetic disorder, can affect the kidneys. Enzyme replacement therapy improved hydronephrosis in a patient with MPS II, suggesting a link between the condition and kidney issues.
Area of Science:
- Biochemistry
- Genetics
- Pediatrics
Background:
- Mucopolysaccharidosis type II (MPS II) results from iduronate-2-sulfatase deficiency, leading to glycosaminoglycan accumulation and multisystem disease.
- Kidney and urinary tract complications are considered less common in MPS II patients.
Observation:
- A pediatric patient with diagnosed MPS II presented with left hydronephrosis.
- The patient's hydronephrosis showed improvement following the initiation of enzyme replacement therapy (ERT).
Findings:
- This case suggests a potential association between MPS II and the development of hydronephrosis.
- ERT may be beneficial in managing renal complications like hydronephrosis in MPS II patients.
Implications:
- Further research is warranted to elucidate the precise mechanisms linking MPS II to hydronephrosis.
- This finding may inform clinical monitoring and treatment strategies for renal manifestations in MPS II.
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