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.

Urology
|December 25, 2016
PubMed

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.

Related Concept Videos

Lysosomal Hydrolases01:22

Lysosomal Hydrolases

Lysosomes are the site for the degradation of macromolecules and biological polymers released during membrane trafficking events such as secretory, endocytic, autophagic, and phagocytic pathways. The membrane-enclosed area of the lysosome, called the lumen, contains hydrolytic enzymes active in an acidic environment. These acid hydrolases are functional at a pH between 4.5 and 5 and are involved in cellular processes such as cell signaling, energy metabolism, restoration of the plasma membrane,...
4.7K
Nephrotic Syndrome II : Assessment and Medical Management01:26

Nephrotic Syndrome II : Assessment and Medical Management

IntroductionNephrotic syndrome is a kidney disorder marked by excessive protein loss in the urine, leading to various systemic complications. This condition often results from damage to the glomeruli—the kidney's filtering units—causing proteinuria, low blood protein levels, and fluid retention. Understanding the assessment, diagnosis, and management of nephrotic syndrome is essential for effective treatment and prevention of further kidney damage.AssessmentPatient History: Document...
292
Nephrotic Syndrome III : Nursing Management01:24

Nephrotic Syndrome III : Nursing Management

Nursing management for nephrotic syndrome adapts as the disease progresses, with strategies evolving to address advancing symptoms and complications.Early-Stage Management In the early stages, nursing interventions for nephrotic syndrome resemble those used in managing acute glomerulonephritis, focusing on symptom monitoring, fluid balance, and managing mild to moderate edema.Vital Signs: Regularly monitor blood pressure, pulse, respiratory rate, and temperature to promptly identify...
403
Kidney Transplant II: Surgical Procedure01:26

Kidney Transplant II: Surgical Procedure

Preoperative ManagementThe primary goals of preoperative management in kidney transplantation are to optimize the patient’s metabolic state and prepare them for surgery through diet adjustments, necessary dialysis, and tailored medical treatment. This phase also involves comprehensive infection screening and patient education about the surgical procedure and postoperative care to improve outcomes and adherence.Medical ManagementA comprehensive evaluation is required for both the living...
628
Pharmacogenetics of Phase II Enzymes: N-acetyltransferase, Thiopurine S-methyltransferase, UDP-glucuronosyltransferase01:27

Pharmacogenetics of Phase II Enzymes: N-acetyltransferase, Thiopurine S-methyltransferase, UDP-glucuronosyltransferase

Phase II biotransformation reactions are essential for detoxifying and eliminating xenobiotics, including many pharmaceutical compounds. These reactions typically involve conjugation, the covalent attachment of polar endogenous groups such as glucuronic acid, sulfate, methyl, or acetyl moieties to functional groups introduced during Phase I metabolism. The resulting conjugates are more water-soluble, enabling efficient renal or biliary excretion.The major classes of Phase II enzymes include...
52