keyword
MENU ▼
Read by QxMD icon Read
search

leukodystrophy

keyword
https://www.readbyqxmd.com/read/28820624/retinopathy-and-optic-atrophy-expanding-the-phenotypic-spectrum-of-pathogenic-variants-in-the-aars2-gene
#1
Jason H Peragallo, Stephanie Keller, Marjo S van der Knaap, Bruno P Soares, Suma P Shankar
BACKGROUND: Optic atrophy may be the sequela of optic nerve injury due to any insult, including isolated and syndromic genetic diseases. Alanyl-tRNA synthetase 2 (AARS2) pathogenic variants have been reported to cause leukodystrophy with ovarian failure, and cardiomyopathy (#615889) as well as combined oxidative phosphorylation deficiency-8 (#614096). We report a young child who presented with decreased vision due to optic atrophy and was found to harbor missense variants in the AARS2 gene expanding the phenotypic expression of the AARS2 gene...
August 18, 2017: Ophthalmic Genetics
https://www.readbyqxmd.com/read/28801086/slowly-progressive-leukodystrophy-in-an-adolescent-male-with-phosphoglycerate-kinase-deficiency
#2
Shimpei Baba, Ayumi Kobayashi, Haruna Yokoyama, Kengo Moriyama, Ayako Kashimada, Jun Oyama, Ayako Owada, Shoichi Oyama, Tomohiro Morio, Masatoshi Takagi
We report the case of an 18-year-old man with a phosphoglycerate kinase (PGK) deficiency who had slowly progressive leukodystrophy during adolescence. The patient had a history of severe neonatal jaundice, hemolytic crisis with rhabdomyolysis triggered by febrile viral infections, dysarthria, and intellectual disability during early childhood. Clumsiness in walking and writing became obvious at ∼10years of age. Evaluations performed by us on the 18-year-old patient confirmed the presence of pyramidal tract signs, increased muscle tone, and generalized dystonia...
August 8, 2017: Brain & Development
https://www.readbyqxmd.com/read/28799099/metachromatic-leukodystrophy-mld-a-pakistani-family-with-novel-arsa-gene-mutation
#3
Muhammad Aiman Shahzad, Saba Khaliq, Ali Amar, Saqib Mahmood
A deficiency of the enzyme arylsulfatase A (ARSA) causes a progressive neurodegenerative lysosomal storage disease known as metachromatic leukodystrophy (MLD). Diagnosis is based on the onset of neurological symptoms, presence of gait abnormalities, spasticity, decreased muscle stretch reflexes and neuro-radiological evidence of demyelination. The purpose of the present study was to identify any mutation in the candidate ARSA gene in a family of late infantile MLD patients. The diagnosis of suspected MLD patients was confirmed by a MRI report and low ARSA enzymatic activity in leukocytes...
August 10, 2017: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/28791129/a-novel-tubb4a-mutation-g96r-identified-in-a-patient-with-hypomyelinating-leukodystrophy-onset-beyond-adolescence
#4
Yongping Lu, Yumiko Ondo, Keiko Shimojima, Hitoshi Osaka, Toshiyuki Yamamoto
The tubulin beta-4A gene (TUBB4A) is associated with two different clinical conditions, dystonia type 4 (DYT4) and hypomyelination with atrophy of the basal ganglia and cerebellum (H-ABC). We identified a novel TUBB4A mutation, c.286G>A (p.G96R), in an adult male patient who suffered neurological symptoms beyond adolescence. This patient shows intermediate clinical features between DYT4 and H-ABC, suggesting that the TUBB4A disorder would constitute a spectrum disorder.
2017: Human Genome Variation
https://www.readbyqxmd.com/read/28769756/an-lmnb1-duplication-caused-adult-onset-autosomal-dominant-leukodystrophy-in-chinese-family-clinical-manifestations-neuroradiology-and-genetic-diagnosis
#5
Yi Dai, Yaling Ma, Shengde Li, Santasree Banerjee, Shengran Liang, Qing Liu, Yinchang Yang, Bin Peng, Liying Cui, Liri Jin
Autosomal dominant adult-onset demyelinating leukodystrophy (ADLD) is a very rare neurological disorder featured with late onset, slowly progressive central nervous system demyelination. Duplication or over expression of the lamin B1 (LMNB1) gene causes ADLD. In this study, we undertook a comprehensive clinical evaluation and genetic detection for a Chinese family with ADLD. The proband is a 52-year old man manifested with autonomic abnormalities, pyramidal tract dysfunction. MRI brain scan identified bilateral symmetric white matter (WM) hyper-intensities in periventricular and semi-oval WM, cerebral peduncles and middle cerebellar peduncles...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28764307/infantile-alexander-disease-case-report-and-review-of-literature
#6
Soumyabrata Sarkar, Rupam Sinha, Amitabha Chakraborty, Tanya Khaitan, Biyas Bhowmik
Alexander Disease (AD) is an autosomal dominant leukodystrophy and occurs predominantly in infants and children. It usually results in death within ten years after onset. Among the four subtypes, infantile form comprises the most of affected individuals. It presents in the first two years of life, typically with progressive psychomotor deficiency, loss of developmental milestones, seizures, and pyramidal signs. Clinical and magnetic resonance image findings usually establish diagnosis of AD. Here, we present a case of Infantile AD with characteristic clinical and radiological features...
June 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28762252/enzymatic-characterization-of-novel-arylsulfatase-a-variants-using-human-arylsulfatase-a-deficient-immortalized-mesenchymal-stromal-cells
#7
Judith Böhringer, René Santer, Neele Schumacher, Friederike Gieseke, Kerstin Cornils, Maria Pechan, Birgit Kustermann-Kuhn, Rupert Handgretinger, Ludger Schöls, Klaus Harzer, Ingeborg Krägeloh-Mann, Ingo Müller
Metachromatic leukodystrophy (MLD) is an autosomal recessive lysosomal storage disease caused by mutations in the ARSA gene leading to arylsulfatase A (ARSA) deficiency and causing sulfatide accumulation. Main symptoms of the disease are progressive demyelination, neurological dysfunction, and reduced life expectancy. To date, more than 200 different ARSA variants have been reported in MLD patients. Here we report the biochemical characterization of 7 novel pathogenic variants (c.98T > C, c.195delC, c...
July 31, 2017: Human Mutation
https://www.readbyqxmd.com/read/28739201/neonatal-detection-of-aicardi-gouti%C3%A3-res-syndrome-by-increased-c26-0-lysophosphatidylcholine-and-interferon-signature-on-newborn-screening-blood-spots
#8
Thais Armangue, Joseph J Orsini, Asako Takanohashi, Francesco Gavazzi, Alex Conant, Nicole Ulrick, Mark A Morrissey, Norah Nahhas, Guy Helman, Heather Gordish-Dressman, Simona Orcesi, Davide Tonduti, Chloe Stutterd, Keith van Haren, Camilo Toro, Alejandro D Iglesias, Marjo S van der Knaap, Raphaela Goldbach Mansky, Anne B Moser, Richard O Jones, Adeline Vanderver
BACKGROUND: Aicardi Goutières Syndrome (AGS) is a heritable interferonopathy associated with systemic autoinflammation causing interferon (IFN) elevation, central nervous system calcifications, leukodystrophy and severe neurologic sequelae. An infant with TREX1 mutations was recently found to have abnormal C26:0 lysophosphatidylcholine (C26:0 Lyso-PC) in a newborn screening platform for X-linked adrenoleukodystrophy, prompting analysis of this analyte in retrospectively collected samples from individuals affected by AGS...
July 20, 2017: Molecular Genetics and Metabolism
https://www.readbyqxmd.com/read/28726798/gene-therapy-research-in-asia
#9
REVIEW
Hong-Xin Deng, Yuan Wang, Qiu-Rong Ding, Da-Li Li, Yu-Quan Wei
Gene therapy has shown great potential for the treatment of diseases that previously were either untreatable or treatable but not curable with conventional schemes. Recent progress in clinical gene therapy trials has emerged in various severe diseases, including primary immunodeficiencies, leukodystrophies, Leber's congenital amaurosis, haemophilia as well as retinal dystrophy. The clinical transformation and industrialization of gene therapy in Asia have been remarkable and continue making steady progress...
July 20, 2017: Gene Therapy
https://www.readbyqxmd.com/read/28718234/paediatrics-brain-imaging-in-epilepsy-common-presenting-symptoms-and-spectrum-of-abnormalities-detected-on-mri
#10
Azmat Ali, Faiza Akram, Ghayyur Khan, Shaukat Hussain
BACKGROUND: Epilepsy, a common neurological disorder can present at any age and has a number of aetiologies with underlying brain disease being the most common aetiology. Brain imaging becomes important and mandatory in the work up for epilepsy in localization and lateralization of the seizure focus. METHODS: This cross-sectional study was conducted in the department of Radiology Ayub Medical Teaching Institution Abbottabad from 1st March 2015 to 31st March 2016...
April 2017: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/28674989/leukodystrophy-basic-and-clinical
#11
Gerald V Raymond
Leukodystrophies are serious, progressive, genetic disorders of CNS myelin. They may result from abnormalities of the oligodendrocyte or any of the other of myriad of supporting cells or tissues. With recent developments in neuroimaging, their presence is becoming increasingly noted even in situations where they were not suspected. More importantly, new genetic tools have improved our ability to diagnose. An understanding of pathogenesis is still evolving, but it is expected that this will assist in developing targeted therapies for these devastating disorders...
2017: Advances in Neurobiology
https://www.readbyqxmd.com/read/28670130/four-novel-arsa-gene-mutations-with-pathogenic-impacts-on-metachromatic-leukodystrophy-a-bioinformatics-approach-to-predict-pathogenic-mutations
#12
Masoumeh Dehghan Manshadi, Behnam Kamalidehghan, Omid Aryani, Elham Khalili, Sepideh Dadgar, Mahdi Tondar, Fatemeh Ahmadipour, Goh Yong Meng, Massoud Houshmand
Metachromatic leukodystrophy (MLD) disorder is a rare lysosomal storage disorder that leads to severe neurological symptoms and an early death. MLD occurs due to the deficiency of enzyme arylsulfatase A (ARSA) in leukocytes, and patients with MLD excrete sulfatide in their urine. In this study, the ARSA gene in 12 non-consanguineous MLD patients and 40 healthy individuals was examined using polymerase chain reaction sequencing. Furthermore, the structural and functional effects of new mutations on ARSA were analyzed using SIFT (sorting intolerant from tolerant), I-Mutant 2, and PolyPhen bioinformatics software...
2017: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/28667691/subacute-demyelinating-peripheral-neuropathy-as-a-novel-presentation-of-late-infantile-metachromatic-leukodystrophy
#13
Hernan D Gonorazky, Kimberly Amburgey, Grace Yoon, Jiri Vajsar, Elysa Widjaja, James J Dowling
Metachromatic leukodystrophy (MLD) is a progressive white matter disease caused by mutations in the ARSA gene(1) . There are 3 clinical subtypes that vary based on age of onset and severity of presentation. The most severe subtype is the late infantile form that presents in the second year of life (after a period of normal development) with progressive motor and cognitive deterioration and occasionally seizures. Affected individuals progress to death, usually by age 5 years. MLD is typically suspected in the appropriate clinical setting by characteristic T2 changes on brain MRI...
July 1, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28666219/lipid-induced-endoplasmic-reticulum-stress-in-x-linked-adrenoleukodystrophy
#14
Malu-Clair van de Beek, Rob Ofman, Inge Dijkstra, Frits Wijburg, Marc Engelen, Ronald Wanders, Stephan Kemp
X-linked adrenoleukodystrophy (ALD) is a progressive neurodegenerative disease that is caused by mutations in the ABCD1 gene and characterized by elevated levels of very long-chain fatty acids (VLCFA) in plasma and tissues, with the most pronounced increase in the central nervous system. Virtually all male patients develop adrenal insufficiency and myelopathy (adrenomyeloneuropathy), but a subset develops a fatal cerebral demyelinating disease (known as cerebral ALD). Female patients may also develop myelopathy, but adrenal insufficiency or leukodystrophy are very rare...
June 27, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28655586/screening-study-of-tubb4a-in-isolated-dystonia
#15
Franca Vulinovic, Susen Schaake, Aloysius Domingo, Kishore Raj Kumar, Giovanni Defazio, Pablo Mir, Kristina Simonyan, Laurie J Ozelius, Norbert Brüggemann, Sun Ju Chung, Aleksandar Rakovic, Katja Lohmann, Christine Klein
Mutations in TUBB4A have been identified to cause a wide phenotypic spectrum ranging from hereditary generalized dystonia with whispering dysphonia (DYT4) to the leukodystrophy hypomyelination syndrome with atrophy of the basal ganglia and cerebellum (H-ABC). To test for the contribution of TUBB4A mutations in different ethnicities (Spanish, Italian, Korean, Japanese), we screened 492 isolated dystonia cases for mutations in this gene and for the first time determined TUBB4A copy number variations in 336 dystonia patients...
August 2017: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/28638987/leukodystrophies-a-proposed-classification-system-based-on-pathological-changes-and-pathogenetic-mechanisms
#16
REVIEW
Marjo S van der Knaap, Marianna Bugiani
Leukodystrophies are genetically determined disorders characterized by the selective involvement of the central nervous system white matter. Onset may be at any age, from prenatal life to senescence. Many leukodystrophies are degenerative in nature, but some only impair white matter function. The clinical course is mostly progressive, but may also be static or even improving with time. Progressive leukodystrophies are often fatal, and no curative treatment is known. The last decade has witnessed a tremendous increase in the number of defined leukodystrophies also owing to a diagnostic approach combining magnetic resonance imaging pattern recognition and next generation sequencing...
June 21, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28628708/brain-calcifications-in-adult-onset-genetic-leukoencephalopathies-a-review
#17
Xavier Ayrignac, Gaël Nicolas, Clarisse Carra-Dallière, Didier Hannequin, Pierre Labauge
Importance: Adult-onset genetic leukoencephalopathies and leukodystrophies are increasingly recognized as a heterogeneous group of disorders with new diagnostic approaches and potential treatments. In the new era of genomics, the challenging interpretation of individual genetic variations requires an accurate phenotypic description and classification. Clinical and magnetic resonance imaging (MRI)-based approaches have been proposed to improve the diagnostic process of adult-onset leukoencephalopathies...
August 1, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/28592657/induced-pluripotent-stem-cell-models-of-lysosomal-storage-disorders
#18
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/28592043/-a-report-of-atypical-hypomyelinating-leukodystrophy-with-atrophy-of-the-basal-ganglia-and-cerebellum-caused-by-a-de-novo-mutation-in-tubulin-beta-4a-tubb4a-gene-and-literature-review
#19
Y Du, C Li, J Guo, P Guo, Z Y Li, W Zhang
Objective: To explore the clinical symptoms and neuroimaging features of a patient with atypical hypomyelinating leukodystrophy with atrophy of the basal ganglia and cerebellum (H-ABC) caused by a novel TUBB4A mutation. Methods: We analyzed the clinical data, imaging features and the result of genetic testing of a case diagnosed as atypical H-ABC. Results: The initial symptoms were progressive spasticity, mild cerebellar ataxia and mild cognitive impairment. MRI showed regional blurring of slight high signal on T(2)-weight and FLAIR image in white matter of the bilateral midbrain ventral, internal capsule, posteior horn of lateral ventricle and centrum semiovale, with normal bilateral cerebellar and caudoputamen nucleus...
June 1, 2017: Zhonghua Nei Ke za Zhi [Chinese Journal of Internal Medicine]
https://www.readbyqxmd.com/read/28589944/cerebellar-hypoplasia-with-endosteal-sclerosis-is-a-polr3-related-disorder
#20
Jamal Ghoumid, Florence Petit, Odile Boute-Benejean, Frédéric Frenois, Maryse Cartigny, Clémence Vanlerberghe, Thomas Smol, Roseline Caumes, Nicolas de Roux, Sylvie Manouvrier-Hanu
CHES (cerebellar hypoplasia with endosteal sclerosis) syndrome (OMIM#213002) associates hypomyelination, cerebellar atrophy, hypogonadism and hypodontia. So far, only five patients have been described. The condition is of neonatal onset. Patients have severe psychomotor delay and moderate to severe intellectual disability. Inheritance is assumed to be autosomal recessive due to recurrence in sibs, consanguinity of parents and absence of vertical transmission. CHES syndrome is reminiscent of 4H-leukodystrophy, a recessive-inherited affection due to variations in genes encoding subunits of the RNA polymerase III (POLR3A-POLR3B-POLR1C)...
August 2017: European Journal of Human Genetics: EJHG
keyword
keyword
41235
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"