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https://www.readbyqxmd.com/read/29752520/mucopolysaccharidoses-overview-of-neuroimaging-manifestations
#1
Manal Nicolas-Jilwan, Moeenaldeen AlSayed
The mucopolysaccharidoses are a heterogeneous group of inherited lysosomal storage disorders, characterized by the accumulation of undegraded glycosaminoglycans in various organs, leading to tissue damage. Mucopolysaccharidoses include eight individual disorders (IS [Scheie syndrome], IH [Hurler syndrome], II, III, IV, VI, VII and IX). They have autosomal-recessive transmission with the exception of mucopolysaccharidosis II, which is X-linked. Each individual disorder has a wide spectrum of phenotypic variation, depending on the specific mutation, from very mild to very severe...
May 11, 2018: Pediatric Radiology
https://www.readbyqxmd.com/read/29751845/beneath-the-floor-re-analysis-of-neurodevelopmental-outcomes-in-untreated-hurler-syndrome
#2
Elsa G Shapiro, Chester B Whitley, Julie B Eisengart
BACKGROUND: Hurler syndrome (MPS IH), the severe, neurodegenerative form of type one mucopolysaccharidosis, is associated with rapid neurocognitive decline during toddlerhood and multi-system dysfunction. It is now standardly treated with hematopoietic cell transplantation (HCT), which halts accumulating disease pathology and prevents early death. While norm-based data on developmental functioning in untreated children have previously demonstrated neurocognitive decline, advances in methodology for understanding the cognitive functioning of children with neurodegenerative diseases have highlighted that the previous choice of scores to report results was not ideal...
May 11, 2018: Orphanet Journal of Rare Diseases
https://www.readbyqxmd.com/read/29717432/classifying-dysmorphic-syndromes-by-using-artificial-neural-network-based-hierarchical-decision-tree
#3
Merve Erkınay Özdemir, Ziya Telatar, Osman Eroğul, Yusuf Tunca
Dysmorphic syndromes have different facial malformations. These malformations are significant to an early diagnosis of dysmorphic syndromes and contain distinctive information for face recognition. In this study we define the certain features of each syndrome by considering facial malformations and classify Fragile X, Hurler, Prader Willi, Down, Wolf Hirschhorn syndromes and healthy groups automatically. The reference points are marked on the face images and ratios between the points' distances are taken into consideration as features...
May 1, 2018: Australasian Physical & Engineering Sciences in Medicine
https://www.readbyqxmd.com/read/29705972/p-tau-and-subunit-c-mitochondrial-atp-synthase-accumulation-in-the-central-nervous-system-of-a-woman-with-hurler-scheie-syndrome-treated-with-enzyme-replacement-therapy-for-12-years
#4
Hiroshi Kobayashi, Masamichi Ariga, Yohei Sato, Masako Fujiwara, Nei Fukasawa, Takahiro Fukuda, Hiroyuki Takahashi, Masahiro Ikegami, Motomichi Kosuga, Torayuki Okuyama, Yoshikatsu Eto, Hiroyuki Ida
We report an autopsy case of a woman with mucopolysaccharidosis type I (MPS I) Hurler-Scheie syndrome who was treated with enzyme replacement therapy (ERT) for 12 years. This was the first case of MPS I treated with ERT in Japan. Pathological analysis showed no glycosaminoglycan accumulation in the liver and spleen as a result of long-term ERT, although severe aortic stenosis, diffuse intimal hyperplasia of the coronary artery, and fibrous hypertrophy of the endocardium were observed. Additionally, we detected subunit c mitochondrial ATP synthase (SCMAS) accumulation and mild tauopathy (hyperphosphorylated tau or p-tau, both 3-repeat and 4-repeat tau accumulation) in the same area of the cerebral limbic system and central gray matter of the mid brain and pons...
April 29, 2018: JIMD Reports
https://www.readbyqxmd.com/read/29683519/children-with-mucopolysaccharidosis-risk-progressive-visual-dysfunction-despite-haematopoietic-stem-cell-transplants
#5
Kristina Teär Fahnehjelm, Monica Olsson, Enping Chen, Jürg Hengstler, Karin Naess, Jacek Winiarski
AIM: This prospective study assessed the long-term ocular and visual outcomes of children with mucopolysaccharidoses type I Hurler syndrome (MPS IH) who were treated with haematopoietic stem cell transplants (HSCT). METHODS: Clinical ophthalmological assessments were performed on eight patients at the St Erik Eye Hospital, Stockholm, Sweden, from 2001-2018: The median age at diagnosis and HSCT were 12.2 (range 5.0-16.4) and 16.7 (8.0-20.4) months. The last eye examination was at a median of 13...
April 23, 2018: Acta Paediatrica
https://www.readbyqxmd.com/read/29680633/multiplex-tandem-mass-spectrometry-assay-for-newborn-screening-of-x-linked-adrenoleukodystrophy-biotinidase-deficiency-and-galactosemia-with-flexibility-to-assay-other-enzyme-assays-and-biomarkers
#6
Xinying Hong, Arun Babu Kumar, C Ronald Scott, Michael H Gelb
All States screen for biotinidase deficiency and galactosemia, and X-linked adrenoleukodystrophy (X-ALD) has recently been added to the Recommended Uniform Screening Panel (RUSP).We sought to consolidate these tests by combining them into a single multiplex tandem mass spectrometry assay as well as to improve the current protocol for newborn screening of galactosemia.A 3 mm punch of a dried blood spot (DBS) was extracted with organic solvent for analysis of the C26:0-lysophosphatidylcholine biomarker for X-ALD...
March 29, 2018: Molecular Genetics and Metabolism
https://www.readbyqxmd.com/read/29657451/total-hip-arthroplasty-in-hurler-syndrome-8-years-follow-up-a-case-report-with-review-of-literature
#7
Deepak Gautam, Rajesh Malhotra
Life expectancy in Hurler syndrome is significantly improved by enzyme therapy with bone marrow transplantation. However, the deterioration of skeletal abnormalities persists. Hip dysplasia is a common presentation which may progress to significant hip arthritis requiring total hip arthroplasty at later stage. We report a long-term outcome of cementless total hip arthroplasty in a patient with Hurler syndrome who was successfully treated with bone marrow transplant.
March 2018: Journal of Orthopaedics
https://www.readbyqxmd.com/read/29517765/long-term-outcomes-of-systemic-therapies-for-hurler-syndrome-an-international-multicenter-comparison
#8
Julie B Eisengart, Kyle D Rudser, Yong Xue, Paul Orchard, Weston Miller, Troy Lund, Ans Van der Ploeg, Jean Mercer, Simon Jones, Karl Eugen Mengel, Seyfullah Gökce, Nathalie Guffon, Roberto Giugliani, Carolina F M de Souza, Elsa G Shapiro, Chester B Whitley
PurposeEarly treatment is critical for mucopolysaccharidosis type I (MPS I), justifying its incorporation into newborn screening. Enzyme replacement therapy (ERT) treats MPS I, yet presumptions that ERT cannot penetrate the blood-brain barrier (BBB) support recommendations that hematopoietic cell transplantation (HCT) treat the severe, neurodegenerative form (Hurler syndrome). Ethics precludes randomized comparison of ERT with HCT, but insight into this comparison is presented with an international cohort of patients with Hurler syndrome who received long-term ERT from a young age...
March 8, 2018: Genetics in Medicine: Official Journal of the American College of Medical Genetics
https://www.readbyqxmd.com/read/29489710/the-match-heart-rate-and-running-profile-of-elite-under-21-hurlers-during-competitive-match-play
#9
Damien Young, Laurent Mourot, Marco Beato, Giuseppe Coratella
The aims of the current study were to examine the physical and physiological demands of elite under-21 male hurling match-play across halves of play and between positions. Global positioning systems (10-Hz) and heart rate (HR) monitors were used to collect data from 95 players during 10 games. Total distance (TD), relative speed, high-speed running (HSR), sprint distance, total sprints and mean length of sprint was 6688 ± 942 m, 112 ± 16 m·min, 661 ± 203 m, 274 ± 111 m, 18 ± 8 and 16 ± 5 m respectively...
February 27, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29409846/metabolic-syndrome-and-cardiovascular-risk-factors-after-hematopoietic-cell-transplantation-in-severe-mucopolysaccharidosis-type-i-hurler-syndrome
#10
Elizabeth Braunlin, Julia Steinberger, Todd DeFor, Paul Orchard, Aaron S Kelly
Hematopoietic cell transplantation is a life-saving procedure, but one associated with increasing long-term cardiovascular risk requiring frequent long-term follow-up. This therapy has significantly lengthened survival in mucopolysaccharidosis type IH (Hurler syndrome), a disease with known coronary artery involvement. Metabolic syndrome-a constellation of central obesity, high blood pressure, low high-density lipoprotein cholesterol, elevated triglycerides, and fasting blood glucose-is associated with increased cardiovascular risk, and occurs when any 3 or more of these 5 components is present within a single individual...
February 1, 2018: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/29310675/failure-to-shorten-the-diagnostic-delay-in-two-ultra-orphan-diseases-mucopolysaccharidosis-types-i-and-iii-potential-causes-and-implications
#11
Gé-Ann Kuiper, Olga L M Meijer, Eveline J Langereis, Frits A Wijburg
BACKGROUND: Rare diseases are often un- or misdiagnosed for extended periods, resulting in a long diagnostic delay that may significantly add to the burden of the disease. An early diagnosis is particularly essential if a disease-modifying treatment is available. The purpose of this study was to assess the extent of the diagnostic delay in the two ultra-rare diseases, i.e., mucopolysaccharidosis I (MPS I) and III (MPS III), both of which are lysosomal storage disorders with different phenotypic severities (MPS 1 is characterized by the severe Hurler and the more attenuated non-Hurler phenotypes, MPS III is characterized by the severe rapidly progressing (RP) phenotype and more attenuated slowly progressing (SP) phenotype)...
January 8, 2018: Orphanet Journal of Rare Diseases
https://www.readbyqxmd.com/read/29297517/erratum-aldenhoven-m-van-den-broek-bta-wynn-rf-et-al-quality-of-life-of-hurler-syndrome-patients-after-successful-hematopoietic-stem-cell-transplantation-blood-adv-2017-1-24-2236-2242
#12
(no author information available yet)
[This corrects the article DOI: 10.1182/bloodadvances.2017011387.].
December 12, 2017: Blood Advances
https://www.readbyqxmd.com/read/29296871/quality-of-life-of-hurler-syndrome-patients-after-successful-hematopoietic-stem-cell-transplantation
#13
Mieke Aldenhoven, Brigitte T A van den Broek, Robert F Wynn, Anne O'Meara, Paul Veys, Attilio Rovelli, Simon A Jones, Rossella Parini, Peter M van Hasselt, Marleen Renard, Victoria Bordon, Tom J de Koning, Jaap Jan Boelens
Hurler syndrome (HS) is a lysosomal storage disease characterized by multisystem morbidity and death in early childhood. Hematopoietic stem cell transplantation (HSCT) results in long-term survival, although with significant residual disease burden. How this residual disease affects the health-related quality of life is unknown. Therefore, we conducted a multicenter cohort study on functional and psychosocial health and compared the outcomes to normative data using the Child Health Questionnaire and Pediatric Outcomes Data Collection Instrument...
November 14, 2017: Blood Advances
https://www.readbyqxmd.com/read/29282708/p-x654r-idua-variant-among-thai-individuals-with-intermediate-mucopolysaccharidosis-type-i-and-its-residual-activity-as-demonstrated-in-cos-7-cells
#14
Lukana Ngiwsara, James R Ketudat-Cairns, Phannee Sawangareetrakul, Ratana Charoenwattanasatien, Voraratt Champattanachai, Chulaluck Kuptanon, Suthipong Pangkanon, Thipwimol Tim-Aroon, Duangrurdee Wattanasirichaigoon, Jisnuson Svasti
BACKGROUND: Mucopolysaccharidosis type I (MPS I) is a rare autosomal-recessive disorder caused by defects in alpha-L-iduronidase (IDUA), a lysosomal enzyme encoded by the IDUA gene. Herein, we characterized IDUA mutations underlying mucopolysaccharidosis type I intermediate form (Hurler-Scheie syndrome) and its molecular pathogenic mechanisms. METHODS: Clinical data, activity of the IDUA enzyme in leukocytes, and a mutation of the IDUA gene were analyzed. Pathogenesis associated with an IDUA mutation was further investigated by evaluating the mutant cDNA sequence, protein expression and activity in COS-7 cells...
December 28, 2017: Annals of Human Genetics
https://www.readbyqxmd.com/read/29242665/unfavourable-outcome-after-uneventful-anaesthesia-and-surgery-in-a-child-with-hurler-syndrome
#15
Renu Sinha, Kanil Ranjith Kumar, Rahul Kumar Anand, Bikash Ranjan Ray
No abstract text is available yet for this article.
October 2017: Indian Journal of Anaesthesia
https://www.readbyqxmd.com/read/29240299/the-effect-of-haemopoietic-stem-cell-transplantation-on-the-ocular-phenotype-in-mucopolysaccharidosis-type-i-hurler
#16
Ahmed Javed, Tariq Aslam, Simon A Jones, Jean Mercer, Karen Tyler, Heather Church, Arunabha Ghosh, Robert Wynn, Krishanthy Sornalingam, Jane Ashworth
PURPOSE: To determine whether the ocular phenotype in patients with mucopolysaccharidosis type I (MPSI) Hurler is affected by the efficacy of previous haemopoietic stem cell transplantation (HSCT). DESIGN: A retrospective cohort study of patients with MPSI who had undergone treatment with HSCT. METHODS: Ocular phenotype was documented for each patient and compared to levels of biomarkers representing efficacy of previous transplantation. MAIN OUTCOME MEASURES: Assessment of visual acuity (VA), severity of corneal clouding and the presence of optic neuropathy or retinopathy...
December 14, 2017: Acta Ophthalmologica
https://www.readbyqxmd.com/read/29200150/alder-reilly-anomaly-in-the-cerebrospinal-fluid-of-a-child-with-hurler-syndrome
#17
Ashley L Lukefahr, Maria Proytcheva
Hurler syndrome is an autosomal recessive mucopolysaccharidosis characterized by intralysosomal accumulation of glycosaminoglycan fragments, with cellular accumulation of distended lysosomes resulting in interference with normal cell function. One of the peripheral blood features of mucopolysaccharidoses is the presence of numerous, dark lilac granules within lymphocytes, monocytes, and neutrophils, also known at Alder-Reilly anomaly. Here we describe intracytoplasmic granules with haloes in mononuclear cells present in the cerebrospinal fluid of a 2-year-old boy with the diagnosis of Hurler syndrome, undergoing pretransplant evaluation for an unrelated donor cord blood stem cell transplant...
January 2018: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/29198892/rtb-lectin-mediated-delivery-of-lysosomal-%C3%AE-l-iduronidase-mitigates-disease-manifestations-systemically-including-the-central-nervous-system
#18
Li Ou, Michael J Przybilla, Brenda Koniar, Chester B Whitley
Mucopolysaccharidosis type I (MPS I) is a lysosomal disease resulting from deficiency in the α-L-iduronidase (IDUA) hydrolase and subsequent accumulation of glycosaminoglycan (GAG). Clinically, enzyme replacement therapy (ERT) with IDUA achieves negligible neurological benefits presumably due to blood-brain-barrier (BBB) limitations. To investigate the plant lectin ricin B chain (RTB) as a novel carrier for enzyme delivery to the brain, an IDUA:RTB fusion protein (IDUAL), produced in N. benthamiana leaves, was tested in a murine model of Hurler syndrome (MPS I)...
February 2018: Molecular Genetics and Metabolism
https://www.readbyqxmd.com/read/29152458/lysosomal-storage-diseases
#19
REVIEW
Carlos R Ferreira, William A Gahl
Lysosomes are cytoplasmic organelles that contain a variety of different hydrolases. A genetic deficiency in the enzymatic activity of one of these hydrolases will lead to the accumulation of the material meant for lysosomal degradation. Examples include glycogen in the case of Pompe disease, glycosaminoglycans in the case of the mucopolysaccharidoses, glycoproteins in the cases of the oligosaccharidoses, and sphingolipids in the cases of Niemann-Pick disease types A and B, Gaucher disease, Tay-Sachs disease, Krabbe disease, and metachromatic leukodystrophy...
May 25, 2017: Translational Science of Rare Diseases
https://www.readbyqxmd.com/read/29128371/assessments-of-neurocognitive-and-behavioral-function-in-the-mucopolysaccharidoses
#20
REVIEW
Elsa G Shapiro, Maria L Escolar, Kathleen A Delaney, John J Mitchell
The mucopolysaccharidoses (MPS) are a group of rare, inherited lysosomal storage disorders in which accumulation of glycosaminoglycans (GAGs) leads to progressive tissue and organ dysfunction. In addition to a variety of somatic signs and symptoms, patients with rapidly progressing MPS I (Hurler), II, III, and VII can present with significant neurological manifestations, including impaired cognitive abilities, difficulties in language and speech, behavioral abnormalities, sleep problems, and/or seizures. Neurological symptoms have a substantial impact on the quality of life of MPS patients and their families...
December 2017: Molecular Genetics and Metabolism
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