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Mucopolysaccharidose

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https://www.readbyqxmd.com/read/28904635/does-orthopaedic-surgery-improve-quality-of-life-and-function-in-patients-with-mucopolysaccharidoses
#1
N Williams, D Challoumas, D M Eastwood
PURPOSE: Mucopolysaccharidoses (MPS) are a group of rare lysosomal storage disorders associated with involvement of multiple organs along with a generalised skeletal dysplasia. Both haematopoetic stem cell transplant and enzyme replacement therapy have improved the outlook for patients while surgery remains high-risk and there is little information on clinical or functional outcome to justify many of the surgical procedures performed. This paper aims to summarise the orthopaedic surgical procedures in MPS patients for which quality of life (QoL) and functional data are available and to describe additional QoL and functional measurement tools of relevance to the assessment of orthopaedic outcomes in MPS...
August 1, 2017: Journal of Children's Orthopaedics
https://www.readbyqxmd.com/read/28895939/sleep-disorders-in-childhood-neurogenetic-disorders
#2
REVIEW
Laura Beth Mann Dosier, Bradley V Vaughn, Zheng Fan
enetic advances in the past three decades have transformed our understanding and treatment of many human diseases including neurogenetic disorders. Most neurogenetic disorders can be classified as "rare disease," but collectively neurogenetic disorders are not rare and are commonly encountered in general pediatric practice. The authors decided to select eight relatively well-known neurogenetic disorders including Down syndrome, Angelman syndrome, Prader-Willi syndrome, Smith-Magenis syndrome, congenital central hypoventilation syndrome, achondroplasia, mucopolysaccharidoses, and Duchenne muscular dystrophy...
September 12, 2017: Children
https://www.readbyqxmd.com/read/28894675/carpal-tunnel-syndrome-in-the-setting-of-mucopolysaccharidosis-ii-hunter-syndrome
#3
Anne E Argenta, Alexander Davit
BACKGROUND: Carpal tunnel syndrome (CTS) is a rare finding in children, but heavily represented in pediatric patients with mucopolysaccharidoses. Diagnosis is a challenge due to lack of the stereotypical symptomatic complaints and relies on examination and objective nerve conduction studies. METHODS: We present a case of delayed presentation of CTS in a 12-year-old boy with Hunter syndrome, followed by a review of the literature. RESULTS: Patient Z...
August 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28860391/the-mucopolysaccharidoses-advances-in-medical-care-lead-to-challenges-in-orthopaedic-surgical-care
#4
REVIEW
N Williams, D Challoumas, D Ketteridge, P J Cundy, D M Eastwood
The mucopolysaccharidoses (MPS) are a group of inherited lysosomal storage disorders with clinical manifestations relevant to the orthopaedic surgeon. Our aim was to review the recent advances in their management and the implications for surgical practice. The current literature about MPSs is summarised, emphasising orthopaedic complications and their management. Recent advances in the diagnosis and management of MPSs include the recognition of slowly progressive, late presenting subtypes, developments in life-prolonging systemic treatment and potentially new indications for surgical treatment...
September 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28845875/-cardiologists-and-mucopolysaccharidoses-recommendations-of-gicem-cardiology-experts-on-metabolic-disease-italian-group-for-diagnosis-follow-up-and-cardiological-management
#5
Pierluigi Russo, Generoso Andria, Alessandra Baldinelli, Maria Lucia Boffi, Emma Cerini, Roberto Della Casa, Andrea Imperatori, Giovanni Battista Luciani, Elisa Morra, Rossella Parini, Maurizio Pieroni, Maria Antonia Prioli, Luca Ragni, Claudio Rapezzi, Gabriele Rinelli, Marta Rubino, Cristiano Sarais, Pietro Sciacca, Francesco Seddio, Giuseppe Limongelli
Mucopolysaccharidoses (MPS) represent a group of rare lysosomal storage disorders, with a heterogeneous clinical presentation in terms of inheritance (autosomal and X-linked recessive), age of onset (infants, children, and adults), systemic and cardiac manifestations (mild to severe disease forms). Evidence-based recommendations on the diagnosis and management of cardiovascular disease in MPS are scarce. GICEM (Gruppo Italiano Cardiologi Esperti Malattie Metaboliche) is a group of cardiologists, cardiac surgeons and pediatricians with a specific expertise in metabolic diseases including MPS...
September 2017: Giornale Italiano di Cardiologia
https://www.readbyqxmd.com/read/28741461/the-enzymatic-degradation-of-heparan-sulfate
#6
Laura Griffin, Tracey Gloster
Glycosaminoglycans (GAGs) such as heparan sulfate (HS) interact with a number of factors in the extracellular matrix (ECM) and as a consequence play a key role in the metabolic processes occurring within the cell. The dynamic synthesis and degradation of HS (and all GAGs) are necessary for ensuring that optimal chains are present for these functions. The degradation of HS begins at the cell surface and finishes in the lysosome, after which components can be recycled. Deficiencies or mutations in the lysosomal enzymes that process GAGs result in rare Mucopolysaccharidoses disorders (MPSs)...
July 24, 2017: Protein and Peptide Letters
https://www.readbyqxmd.com/read/28723112/surfen-assembled-graphene-oxide-for-fluorescence-turn-on-detection-of-sulfated-glycosaminoglycans-in-biological-matrix
#7
Yen-Ting Wang, Wei-Lung Tseng
Sulfated glycosaminoglycans (GAGs) not only serve as a biomarker for mucopolysaccharidoses disease but also participate in various biological processes, such as blood clot medication (heparin) and signal transduction (heparan sulfate). However, few fluorescent sensors, such as 1,9-dimethylmethylene blue, have been developed for the detection of sulfated GAGs in the real world. Herein, we fabricated a surfen/few-layer graphene oxide (FLGO) nanocomplex for sensing sulfated GAGs in biological fluids. Surfen molecules are self-assembled onto the surface of FLGO through electrostatic attraction, and their fluorescence was then quenched by the creation of the FLGO-surfen complex (static quenching) and partially combined with the energy transfer from surfen to FLGO (dynamic quenching)...
June 23, 2017: ACS Sensors
https://www.readbyqxmd.com/read/28714487/screening-mentally-retarded-children-for-inborn-errors-of-metabolism
#8
N K Shreevastava, A S Pandey
BACKGROUND: Most inborn errors of metabolism result in mental retardation and death due to accumulation of abnormal metabolites in the tissues. The presence of abnormal metabolites in the urine of mentally retarded individuals has been used worldwide for detection of inborn errors of metabolism. The purpose of the study is to determine the prevalence of inborn error of metabolism in mentally retarded children. METHODS: Random urine samples were collected from mentally retarded children at two institutes in Kathmandu, and also from 60 normal children from Duwakot, Nepal after obtaining consent from their parents...
January 2017: Journal of Nepal Health Research Council
https://www.readbyqxmd.com/read/28687233/overview-of-immune-abnormalities-in-lysosomal-storage-disorders
#9
REVIEW
Donato Rigante, Clelia Cipolla, Umberto Basile, Francesca Gulli, Maria Cristina Savastano
The critical relevance of the lysosomal compartment for normal cellular function can be proved by numbering the clinical phenotypes that arise in lysosomal storage disorders (LSDs), a group of around 70 different monogenic autosomal or X-linked syndromes, caused by specific lysosomal enzyme deficiencies: all LSDs are characterized by progressive accumulation of heterogeneous biologic materials in the lysosomes of various parts of the body such as viscera, skeleton, skin, heart, and central nervous system. At least a fraction of LSDs has been associated with mixed abnormalities involving the immune system, while some patients with LSDs may result more prone to autoimmune phenomena...
August 2017: Immunology Letters
https://www.readbyqxmd.com/read/28660346/adeno-associated-viral-gene-therapy-for-mucopolysaccharidoses-exhibiting-neurodegeneration
#10
REVIEW
Adeline A Lau, Kim M Hemsley
The mucopolysaccharidoses (MPS) are a subgroup of lysosomal storage disorders that are caused by mutations in the genes involved in glycosaminoglycan breakdown. Multiple organs and tissues are affected, including the central nervous system. At present, hematopoietic stem cell transplantation and enzyme replacement therapies are approved for some of the (non-neurological) MPS. Treatments that effectively ameliorate the neurological aspects of the disease are being assessed in clinical trials. This review will focus on the recent outcomes and planned viral vector-mediated gene therapy clinical trials, and the pre-clinical data that supported these studies, for MPS-I (Hurler/Scheie syndrome), MPS-II (Hunter syndrome), and MPS-IIIA and -IIIB (Sanfilippo syndrome)...
June 29, 2017: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/28649516/novel-frameshift-variant-in-the-idua-gene-underlies-mucopolysaccharidoses-type-i-in-a-consanguineous-yemeni-pedigree
#11
Belal Azab, Zain Dardas, Mohannad Hamarsheh, Mohammad Alsalem, Zaid Kilani, Farah Kilani, Abdalla Awidi, Hanan Jafar, Sami Amr
Mucopolysaccharidosis type I (MPS I) is an autosomal recessive storage disorder that result as a consequence of a deficiency in the lysosomal hydrolase, a-L-iduronidase enzyme encoded by IDUA gene. Over a hundred causative variants in IDUA have been identified, which result in a progressive multi-systemic disease with a broad range of severity and disease progression reported across affected individuals. The aim of this study was the detection and interpretation of IDUA mutation in a family with two children affected with lethal MPS I...
September 2017: Molecular Genetics and Metabolism Reports
https://www.readbyqxmd.com/read/28595941/epidemiology-of-mucopolysaccharidoses
#12
Shaukat A Khan, Hira Peracha, Diana Ballhausen, Alfred Wiesbauer, Marianne Rohrbach, Matthias Gautschi, Robert W Mason, Roberto Giugliani, Yasuyuki Suzuki, Kenji E Orii, Tadao Orii, Shunji Tomatsu
The aim of this study was to obtain data about the epidemiology of the different types of mucopolysaccharidoses in Japan and Switzerland and to compare with similar data from other countries. Data for Japan was collected between 1982 and 2009, and 467 cases with MPS were identified. The combined birth prevalence was 1.53 per 100,000 live births. The highest birth prevalence was 0.84 for MPS II, accounting for 55% of all MPS. MPS I, III, and IV accounted for 15, 16, and 10%, respectively. MPS VI and VII were more rare and accounted for 1...
July 2017: Molecular Genetics and Metabolism
https://www.readbyqxmd.com/read/28593554/hydrocephalus-and-mucopolysaccharidoses-what-do-we-know-and-what-do-we-not-know
#13
REVIEW
Amauri Dalla Corte, Carolina F M de Souza, Maurício Anés, Roberto Giugliani
INTRODUCTION: The precise incidence of hydrocephalus in patients with mucopolysaccharidoses (MPS) is hard to determine, because the condition lacks a formal, consensus-based definition. The diagnosis of hydrocephalus depends on symptom profile, presence of neuroimaging features, and the outcome of diagnostic tests. Although numerous techniques are used to identify MPS patients who are most likely to have hydrocephalus and respond to treatment, no definitive method exists to prove diagnosis...
June 7, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28592657/induced-pluripotent-stem-cell-models-of-lysosomal-storage-disorders
#14
REVIEW
Daniel K Borger, Benjamin McMahon, Tamanna Roshan Lal, Jenny Serra-Vinardell, Elma Aflaki, Ellen Sidransky
Induced pluripotent stem cells (iPSCs) have provided new opportunities to explore the cell biology and pathophysiology of human diseases, and the lysosomal storage disorder research community has been quick to adopt this technology. Patient-derived iPSC models have been generated for a number of lysosomal storage disorders, including Gaucher disease, Pompe disease, Fabry disease, metachromatic leukodystrophy, the neuronal ceroid lipofuscinoses, Niemann-Pick types A and C1, and several of the mucopolysaccharidoses...
June 1, 2017: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/28590232/anesthesia-for-patients-with-mucopolysaccharidoses-comprehensive-review-of-the-literature-with-emphasis-on-airway-management
#15
REVIEW
Brittney M Clark, Juraj Sprung, Toby N Weingarten, Mary E Warner
Mucopolysaccharidoses (MPS) are rare, inherited, lysosomal storage diseases that cause accumulation of glycosaminoglycans, resulting in anatomic abnormalities and organ dysfunction that can increase the risk of anesthesia complications. We conducted a systematic review of the literature in order to describe the anesthetic management and perioperative outcomes in patients with MPS. We reviewed English-language literature search using an OVID-based search strategy of the following databases: 1) PubMed (1946-present), 2) Medline (1946-present), 3) EMBASE (1946-present), and 4) Web of Science (1946-present) using the following search terms: mucopolysaccharidosis, Hurler, Scheie, Sanfilippo, Morquio, Maroteaux, anesthesia, perioperative, intubation, respiratory insufficiency, and airway...
June 6, 2017: Bosnian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28560179/the-factors-affecting-lipid-profile-in-adult-patients-with-mucopolysaccharidosis
#16
Karolina M Stepien, Fiona J Stewart, Chris J Hendriksz
BACKGROUND: Mucopolysaccharidoses (MPS) are a group of rare inherited disorders characterized by abnormal accumulation of glycosaminoglycans (GAGs) within the myocytes and coronary arteries. Little is known about hyperlipidaemia as a potential cardiovascular risk factor in these patients. Baseline cholesterol data in adults are scarce. Therefore, the aim of this study was to analyse factors affecting lipid profile in different types of MPSs to determine if abnormalities in lipid profile contribute to the overall risk of cardiovascular disease...
September 2017: Molecular Genetics and Metabolism Reports
https://www.readbyqxmd.com/read/28538597/surgical-management-of-thoracolumbar-kyphosis-in-patients-with-mucopolysaccharidosis-a-systematic-review
#17
Nicole Williams, Peter Cundy, Deborah Eastwood
STUDY DESIGN: Systematic Review OBJECTIVE.: To determine the indications and outcomes for surgical treatment of thoracolumbar kyphosis in patients with mucopolysaccharidoses (MPS) in order to define future studies. SUMMARY OF BACKGROUND DATA: Improvements in the medical treatment of MPS have increased lifespan and improved quality of life for many patients, but with no effect on thoracolumbar kyphosis. A greater number of these challenging patients may now be considered spinal surgical candidates...
June 7, 2017: Spine
https://www.readbyqxmd.com/read/28538069/normocephalic-pancraniosynostosis-a-report-of-a-surgical-technique
#18
Marcin Czerwinski, Sharon Monsivais
Normocephalic pancraniosynostosis is defined as the premature fusion of 3 or, more major sutures in the absence of another primary etiology, including primary, microcephaly, ventriculoperitoneal shunting, hypothyroidism, rickets, mucopolysaccharidoses, or other lysosomal storage diseases. It is very rare, thus far only 6 patients have been reported in the literature. Patients tend to present much later than those with single sutural, synostoses, and up to half have evidence of elevated intracranial pressure...
May 19, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28524215/-novel-therapies-in-neurometabolic-diseases-the-importance-of-early-intervention
#19
L G Gutierrez-Solana
INTRODUCTION: Individually, neurometabolic diseases are ultra rare, but for some of them there is an effective treatment. DEVELOPMENT: Several recent therapeutic advances are reviewed. Today, the possibilities of treatment for lysosomal diseases have improved. In recent years the use of enzyme replacement therapy has become more widely extended to treat mucopolysaccharidosis type IVA (Morquio A), mucopolysaccharidosis type VII (Sly syndrome), lysosomal acid lipase deficiency and alpha-mannosidosis...
May 17, 2017: Revista de Neurologia
https://www.readbyqxmd.com/read/28506702/cognitive-and-adaptive-measurement-endpoints-for-clinical-trials-in-mucopolysaccharidoses-types-i-ii-and-iii-a-review-of-the-literature
#20
REVIEW
Darren Janzen, Kathleen A Delaney, Elsa G Shapiro
Sensitive, reliable measurement instruments are critical for the evaluation of disease progression and new treatments that affect the brain in the mucopolysaccharidoses (MPS). MPS I, II, and III have early onset clinical phenotypes that affect the brain during development and result in devastating cognitive decline and ultimately death without treatment. Comparisons of outcomes are hindered by diverse protocols and approaches to assessment including applicability to international trials necessary in rare diseases...
May 8, 2017: Molecular Genetics and Metabolism
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