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Mucopolysaccharidose

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https://www.readbyqxmd.com/read/28223066/audiological-findings-in-children-with-mucopolysaccharidoses-type-i-iv
#1
María F Vargas-Gamarra, Carlos de Paula-Vernetta, Isidro Vitoria Miñana, Isabel Ibañez-Alcañiz, Laura Cavallé-Garrido, Agustín Alamar-Velazquez
OBJECTIVE: The aim of our study is to reflect hearing impairment of 23children diagnosed with mucopolysaccharidosis (MPS) typeI, II, III and IV. METHODS: Retrospective study of the clinical, audiological and treatment (medical vs surgical) findings of 23children diagnosed with MPS typeI, II, III or IV followed at a Tertiary Referral Hospital between 1997 and 2015. RESULTS: Six cases of MPSI, 8 of MPSII, 4 of MPSIII and 5 of MPSIV were reviewed...
February 18, 2017: Acta Otorrinolaringológica Española
https://www.readbyqxmd.com/read/28196778/mucopolysaccharidoses-seen-in-adults-in-rheumatology
#2
Stéphane Mitrovic, Hélène Gouze, Laure Gossec, Thierry Schaeverbeke, Bruno Fautrel
Mucopolysaccharidoses are a group of rare lysosomal storage diseases including a great number of polymorph syndromes, each being related to a particular mutation responsible for a deficiency of glycosaminoglycan degrading enzymes, leading to an accumulation of glycosaminoglycans in tissues. Many of them are diagnosed in children or teenagers and have a severe prognosis because of organ failure, and are consequently usually not seen by the adult rheumatologist. However, some of them have a more progressive presentation, with musculoskeletal symptoms at the forefront and a lifespan that nearly reaches that of the general population...
February 11, 2017: Joint, Bone, Spine: Revue du Rhumatisme
https://www.readbyqxmd.com/read/28170539/objective-quantification-of-changes-in-corneal-clouding-over-time-in-patients-with-mucopolysaccharidosis
#3
Ahmed Javed, Tariq Aslam, Simon A Jones, Jane Ashworth
Purpose: We determine objective changes in corneal opacification levels over time in patients with mucopolysaccharidoses (MPS) treated with enzyme replacement therapy or hematopoietic stem cell transplant. A prospective cohort study was done of 9 patients with MPS I (Hurler) or VI (Maroteaux-Lamy). Methods: Quantification of corneal clouding using the Iris camera and full ophthalmic examination, including subjective assessment of corneal clouding, was done in 2011 and repeated in 2015/2016...
February 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28101780/update-of-the-spectrum-of-mucopolysaccharidoses-type-iii-in-tunisia-identification-of-three-novel-mutations-and-in-silico-structural-analysis-of-the-missense-mutations
#4
Souad Ouesleti, Maria Francisca Coutinho, Isaura Ribeiro, Abdehedi Miled, Dalila Saidane Mosbahi, Sandra Alves
BACKGROUND: Mucopolysaccharidoses type III (MPS III) are a group of autosomal recessive lysosomal storage diseases, caused by mutations in genes that code for enzymes involved in the lysosomal degradation of heparan sulphate: heparan sulfate sulfamidase (SGSH), α-N-acetylglucosaminidase (NAGLU), heparan sulfate acetyl-CoA: α-glucosaminide N-acetyltransferase (HGSNAT), and N-acetylglucosamine-6-sulfatase (GNS). METHODS: In this study, we have performed the molecular analysis of the SGSH, NAGLU and HGSNAT genes in 10 patients from 6 different MPS III Tunisian families...
January 19, 2017: World Journal of Pediatrics: WJP
https://www.readbyqxmd.com/read/28092090/prevalence-of-mucopolysaccharidosis-types-i-ii-and-vi-in-the-pediatric-and-adult-population-with-carpal-tunnel-syndrome-cts-retrospective-and-prospective-analysis-of-patients-treated-for-cts
#5
Mette Borch Nørmark, Nanna Kjaer, Allan Meldgaard Lund
BACKGROUND: We wanted to investigate whether the prevalence of mucopolysaccharidoses (MPS) I, II, and VI was higher than expected in a selected cohort of patients with carpal tunnel syndrome (CTS). CTS is a common finding in patients with MPS, and therefore we screened patients who had undergone surgery for CTS for undiagnosed MPS. PATIENTS AND METHODS: Patients who had been operated for CTS were found in databases from two hospitals. Furthermore, patients who had undergone surgery for CTS when under the age of 18 were retrieved from the National Patient Registry...
January 17, 2017: JIMD Reports
https://www.readbyqxmd.com/read/28070903/myocardial-deformation-in-pediatric-patients-with-mucopolysaccharidoses-a-two-dimensional-speckle-tracking-echocardiography-study
#6
Francesco Borgia, Enrica Pezzullo, Vincenzo Schiano Lomoriello, Regina Sorrentino, Francesco Lo Iudice, Sara Cocozza, Roberto Della Casa, Giancarlo Parenti, Pietro Strisciuglio, Bruno Trimarco, Maurizio Galderisi
BACKGROUND: Mucopolysaccharidoses (MPS) are inherited lysosomal storage disorders caused by deficiency of required glycosaminoglycans breakdown enzymes, inducing cardiac involvement. Little is known about myocardial deformation involvement in MPS. Our aim was to assess biventricular structure and function in asymptomatic children with MPS using standard echo Doppler and 2D speckle tracking (STE). METHODS: Fifteen MPS children (one type I, six type II, three type III A, one III B, three IV A, one VI), asymptomatic for cardiac symptoms, and 15 age and sex-matched healthy controls underwent echo Doppler and STE...
January 10, 2017: Echocardiography
https://www.readbyqxmd.com/read/28065440/glycosaminoglycan-levels-in-dried-blood-spots-of-patients-with-mucopolysaccharidoses-and-mucolipidoses
#7
Francyne Kubaski, Yasuyuki Suzuki, Kenji Orii, Roberto Giugliani, Heather J Church, Robert W Mason, Vũ Chí Dũng, Can Thi Bich Ngoc, Seiji Yamaguchi, Hironori Kobayashi, Katta M Girisha, Toshiyuki Fukao, Tadao Orii, Shunji Tomatsu
: Mucopolysaccharidoses (MPSs) and mucolipidoses (ML) are groups of lysosomal storage disorders in which lysosomal hydrolases are deficient leading to accumulation of undegraded glycosaminoglycans (GAGs), throughout the body, subsequently resulting in progressive damage to multiple tissues and organs. Assays using tandem mass spectrometry (MS/MS) have been established to measure GAGs in serum or plasma from MPS and ML patients, but few studies were performed to determine whether these assays are sufficiently robust to measure GAG levels in dried blood spots (DBS) of patients with MPS and ML...
December 22, 2016: Molecular Genetics and Metabolism
https://www.readbyqxmd.com/read/28050459/cardiovascular-abnormalities-in-egyptian-children-with-mucopolysaccharidoses
#8
Laila Selim, Nehal Abdelhamid, Emad Salama, Amera Elbadawy, Iman Gamaleldin, Mohamed Abdelmoneim, Abeer Selim
INTRODUCTION: The Mucopolysaccharidoses (MPS) are rare inherited metabolic disorders. They are characterized by the progressive systemic deposition of Glycosaminoglycans (GAGs). GAGs accumulate in the myocardium and the cardiac valves. Enzyme Replacement Therapy (ERT) is available for MPS I, II, and VI. However, ERT does not appear to improve cardiac valve disease in patients with valve disease present at the start of ERT. AIM: To evaluate the cardiac involvement in Egyptian children with MPS...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28013294/mutation-in-vps33a-affects-metabolism-of-glycosaminoglycans-a-new-type-of-mucopolysaccharidosis-with-severe-systemic-symptoms
#9
Hidehito Kondo, Nadezda Maksimova, Takanobu Otomo, Hisakazu Kato, Atsuko Imai, Yoshihiro Asano, Kaori Kobayashi, Satoshi Nojima, Akihiro Nakaya, Yusuke Hamada, Kaori Irahara, Elizaveta Gurinova, Aitalina Sukhomyasova, Anna Nogovicina, Mira Savvina, Tamotsu Yoshimori, Keiichi Ozono, Norio Sakai
Mucopolysaccharidoses (MPS) are a group of genetic deficiencies of lysosomal enzymes that catabolize glycosaminoglycans (GAG). Here we describe a novel MPS-like disease caused by a specific mutation in the VPS33A gene. We identified several Yakut patients showing typical manifestations of MPS: coarse facial features, skeletal abnormalities, hepatosplenomegaly, respiratory problems, mental retardation, and excess secretion of urinary GAG. However, these patients could not be diagnosed enzymatically as MPS. They showed extremely high levels of plasma heparan sulphate (HS, one of GAG); 60 times the normal reference range and 6 times that of MPS patients...
December 23, 2016: Human Molecular Genetics
https://www.readbyqxmd.com/read/27865974/importance-of-the-combined-urinary-procedure-for-the-diagnosis-of-mucopolysaccharidoses
#10
Lucia Zampini, Lucia Padella, Rita Lucia Marchesiello, Lucia Santoro, Chiara Monachesi, Andrea Giovagnoni, Carlo Catassi, Orazio Gabrielli, Giovanni Valentino Coppa, Tiziana Galeazzi
BACKGROUND: Mucopolysaccharidoses are characterized by the accumulation of undegraded glycosaminoglycans in lysosomes in multiple organs and by their excretion in high amounts in urine. The aim of this study is to determine if this simple, reliable and reproducible method is useful for the diagnosis of Mucopolysaccharidoses. METHODS: The study included 2154 normal urine samples and 210 samples from 73 patients affected by different types of Mucopolysaccharidoses...
January 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/27864098/screening-for-mucopolysaccharidoses-in-the-turkish-population-analytical-and-clinical-performance-of-an-age-range-specific-dye-based-urinary-glycosaminoglycan-assay
#11
Khaled El Moustafa, Serap Sivri, Sevilay Karahan, Turgay Coşkun, Filiz Akbıyık, İncilay Lay
Comprehensive analytical and diagnostic performance of urinary quantitative GAG analysis with dimethylmethylene blue (DMB) and the age-specific reference ranges were determined in Turkish population, which has a high incidence of MPSs. Precision, linearity, recovery and accuracy/trueness, limits, stability, and effect of interferents were tested according to CLSI guideline. Clinical performance was evaluated with ROC analyses including 45 MPS patients. Intra-day and inter-day precisions were <5% and <11% (CV), respectively...
January 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/27832551/anaesthetic-implications-of-the-changing-management-of-patients-with-mucopolysaccharidosis
#12
H A Hack, Rwm Walker, P Gardiner
The mucopolysaccharidoses are a group of inherited metabolic disorders that are renowned for presenting clinical problems, particularly related to cardiac, airway, and skeletal abnormalities, in children during anaesthesia. The changing clinical management of the mucopolysaccharidoses can be described in three phases. An initial phase of accumulation and dissemination of knowledge about the management of this rare disease with a growing recognition that untreated Hurler syndrome and more severe forms of other phenotypes such as Hunter syndrome and Maroteaux-Lamy syndrome were associated with severe complications under anaesthesia...
November 2016: Anaesthesia and Intensive Care
https://www.readbyqxmd.com/read/27746032/glycosaminoglycans-detection-methods-applications-of-mass-spectrometry
#13
REVIEW
Francyne Kubaski, Harumi Osago, Robert W Mason, Seiji Yamaguchi, Hironori Kobayashi, Mikako Tsuchiya, Tadao Orii, Shunji Tomatsu
Glycosaminoglycans (GAGs) are long blocks of negatively charged polysaccharides. They are one of the major components of the extracellular matrix and play multiple roles in different tissues and organs. The accumulation of undegraded GAGs causes mucopolysaccharidoses (MPS). GAGs are associated with other pathological conditions such as osteoarthritis, inflammation, diabetes mellitus, spinal cord injury, and cancer. The need for further understanding of GAG functions and mechanisms of action boosted the development of qualitative and quantitative (alcian blue, toluidine blue, paper and thin layer chromatography, gas chromatography, high pressure liquid chromatography, capillary electrophoresis, 1,9-dimethylmethylene blue, enzyme linked-immunosorbent assay, mass spectrometry) techniques...
September 28, 2016: Molecular Genetics and Metabolism
https://www.readbyqxmd.com/read/27718145/newborn-screening-for-mucopolysaccharidoses-a-pilot-study-of-measurement-of-glycosaminoglycans-by-tandem-mass-spectrometry
#14
Francyne Kubaski, Robert W Mason, Akiko Nakatomi, Haruo Shintaku, Li Xie, Naomi N van Vlies, Heather Church, Roberto Giugliani, Hironori Kobayashi, Seiji Yamaguchi, Yasuyuki Suzuki, Tadao Orii, Toshiyuki Fukao, Adriana M Montaño, Shunji Tomatsu
BACKGROUND: Mucopolysaccharidoses (MPS) are a group of inborn errors of metabolism that are progressive and usually result in irreversible skeletal, visceral, and/or brain damage, highlighting a need for early diagnosis. METHODS: This pilot study analyzed 2862 dried blood spots (DBS) from newborns and 14 DBS from newborn patients with MPS (MPS I, n = 7; MPS II, n = 2; MPS III, n = 5). Disaccharides were produced from polymer GAGs by digestion with chondroitinase B, heparitinase, and keratanase II...
January 2017: Journal of Inherited Metabolic Disease
https://www.readbyqxmd.com/read/27707435/progression-of-polysomnographic-abnormalities-in-mucolipidosis-ii-i-cell-disease
#15
William I Wooten, Marianne S Muhlebach, Joseph Muenzer, Ceila E Loughlin, Bradley V Vaughn
Mucolipidosis II (Inclusion cell or I-cell disease) is an autosomal recessive lysosomal storage disorder clinically comparable to the mucopolysaccharidoses (MPS), characterized by progressive respiratory and neurologic deterioration. Sleep problems, especially obstructive sleep apnea (OSA) and disrupted sleep architecture, are observed in other lysosomal storage diseases but have not been described in mucolipidosis II. We report the progression of polysomnographic abnormalities in a child with mucolipidosis II, demonstrated by worsening sleep-related hypoventilation, OSA, and sleep state fragmentation despite advancing PAP therapy...
December 15, 2016: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/27692945/reversal-of-established-bone-pathology-in-mps-vii-mice-following-lentiviral-mediated-gene-therapy
#16
Ainslie L K Derrick-Roberts, Kavita Panir, Carmen E Pyragius, Krystyna H Zarrinkalam, Gerald J Atkins, Sharon Byers
Severe, progressive skeletal dysplasia is a major symptom of multiple mucopolysaccharidoses (MPS) types. While a gene therapy approach initiated at birth has been shown to prevent the development of bone pathology in different animal models of MPS, the capacity to correct developed bone disease is unknown. In this study, ex vivo micro-computed tomography was used to demonstrate that bone mass and architecture of murine MPS VII L5 vertebrae were within the normal range at 1month of age but by 2months of age were significantly different to normal...
September 24, 2016: Molecular Genetics and Metabolism
https://www.readbyqxmd.com/read/27688591/outcomes-of-keratoplasty-in-the-mucopolysaccharidoses-an-international-perspective
#17
Kaitlyn L Ohden, Susanne Pitz, Jane Ashworth, Augusto Magalhães, Diane R Marinho, Päivi Lindahl, Kristina Teär Fahnehjelm, C Gail Summers
OBJECTIVE: To describe visual outcomes after penetrating keratoplasty and deep anterior lamellar keratoplasty in patients with mucopolysaccharidoses. METHODS: This is a retrospective review of keratoplasty in consecutive patients from Brazil, England, Finland, Germany, Portugal, Sweden and the USA. All patients had corneal clouding due to mucopolysaccharidoses. Preoperative and postoperative visual outcome and ocular comorbidities were identified. Success was arbitrarily defined as any improvement in visual acuity or best-corrected visual acuity better than logarithm of the minimum angle of resolution 0...
September 28, 2016: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/27636868/external-genitalia-hypertrophy-in-an-adolescent-girl-with-sanfilippo-syndrome
#18
Flora Bacopoulou, Despoina Apostolaki, Roser Pons
OBJECTIVE: To report unusual gynaecological features associated with Sanfilippo syndrome, a rare progressive multisystem storage disorder. CASE: A 10-year-old adolescent girl with Sanfilippo syndrome type B, presented to the Center for Adolescent Medicine accompanied by her mother. Maternal anxiety was related to a palpable mass over the adolescent's external genitalia that had been causing her discomfort and exacerbation of her behavioural problems when wearing trousers...
October 2016: European Journal of Contraception & Reproductive Health Care
https://www.readbyqxmd.com/read/27622143/pregnancy-in-patients-with-mucopolysaccharidosis-a-case-series
#19
Fiona J Stewart, Andrew Bentley, Barbara K Burton, Nathalie Guffon, Susan L Hale, Paul R Harmatz, Susanne G Kircher, Pavan K Kochhar, John J Mitchell, Ursula Plöckinger, Sue Graham, Stephen Sande, Zlatko Sisic, Tracey A Johnston
The mucopolysaccharidoses (MPS disorders) are rare inherited diseases associated with multi-organ accumulation of glycosaminoglycans, leading to musculoskeletal, respiratory, cardiac, neurological, ophthalmological, otolaryngological, and gastrointestinal abnormalities. As a result of improvements in diagnosis, multi-disciplinary care, and therapies such as enzyme replacement therapy and hematopoietic stem cell transplantation, an increasing number of patients with MPS are reaching adulthood and are involved in family planning...
September 2016: Molecular Genetics and Metabolism Reports
https://www.readbyqxmd.com/read/27601403/cutaneous-manifestations-of-mucopolysaccharidoses
#20
REVIEW
Mimi C Tran, Joseph M Lam
Mucopolysaccharidoses (MPSs) are a group of inherited lysosomal storage disorders characterized by deficiencies in specific enzymes involved in the catabolism of glycosaminoglycans (GAGs). These deficiencies cause excessive metabolites to accumulate in multiple organs. There are eight different MPS disorders, contributing to the wide variation in clinical presentation. Depending on the severity and subtype of the disease, some children live normal life spans, while others have a more grim prognosis. Children with MPS can present with neurologic, behavioral, skeletal, cardiovascular, gastrointestinal, or respiratory abnormalities...
November 2016: Pediatric Dermatology
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