We describe a 40-year-old male patient with Hunter's syndrome. His main manifestations were ascites and esophageal varices due to cirrhotic liver. We obtained hepatic biopsy samples and examined them. Ultrastructurally, the features of the hepatocytes and Kupffer cells were the same as those reported in young patients. The passage of 40 years led to gradual progression to fibrosis, and ultimately liver cirrhosis. Namely, with a longer survival time, the complications of liver cirrhosis become more remarkable. Hepatic fibrosis in Hunter's syndrome is slowly progressive and patients who are expected to have a longer life span should be continuously monitored for hepatic complications.
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http://dx.doi.org/10.2169/internalmedicine.45.6005 | DOI Listing |
Metabolomics
March 2025
Division of Medical Genetics, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC, Canada.
Introduction: Mucopolysaccharidosis type II (Hunter syndrome) is an X-linked recessive disorder caused by iduronate-2-sulfatase deficiency, affecting mainly male patients. The lack of its enzyme activity causes the accumulation of the glycosaminoglycans heparan sulfate and dermatan sulfate in all body tissues and leads to a secondary accumulation of gangliosides and ceramides.
Objective And Methods: We conducted a lipidomic study to investigate the dysregulation of lipid pathways in neuronopathic MPS type II.
Mucopolysaccharidosis type II (MPS II) is an X-linked lysosomal storage disorder caused by pathogenic variants in the gene encoding iduronate-2-sulfatase (IDS), which hydrolyzes sulfate groups in dermatan sulfate and heparan sulfate. The current treatment for MPS II includes enzyme replacement therapy and hematopoietic stem cell transplantation (HSCT). Both therapies have shown limited penetration through the blood-brain barrier.
View Article and Find Full Text PDFJ Curr Ophthalmol
January 2025
Department of Ophthalmology, Avicenna Military Hospital, Faculty of Medicine and Pharmacy, Caddi Ayyad University, Marrakech, Morocco.
Purpose: To report the atypical case of a patient with mucopolysaccharidosis type II (MPS II) in whom bilateral pigmented paravenous chorioretinal atrophy (PPRCA) was found.
Methods: An observational case report.
Results: We present the case of a 31-year-old male patient who presented with decreased visual acuity and in whom fundus examination and multimodal imaging revealed a typical appearance of bilateral symmetrical PPRCA.
Orphanet J Rare Dis
February 2025
Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK.
Background: The mucopolysaccharidoses are a group of rare, inherited metabolic disorders. MPS II is a X-linked recessive disease, also known as Hunter syndrome. Clinical manifestations include upper and lower respiratory tract, and head and neck pathologies influencing quality of life, morbidity, and mortality.
View Article and Find Full Text PDFBMJ Case Rep
February 2025
Neurology Department, Liverpool Hospital, Liverpool, New South Wales, Australia.
Bow hunter's syndrome is a rare syndrome of dynamic compression of the vertebral artery leading to recurrent posterior circulation stroke and/or transient ischaemic attack. The artery is compressed by the transverse process of a cervical vertebra or other structures. We describe a man in his 20s who had recurrent posterior circulation strokes confirmed on CT perfusion imaging before a dynamic left vertebral artery stenosis was found on neck manoeuvres during digital subtraction angiography.
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