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https://www.readbyqxmd.com/read/29844889/pantothenate-kinase-associated-neurodegeneration-clinical-aspects-diagnosis-and-treatments
#1
Saeed Razmeh, Amir Hassan Habibi, Maryam Orooji, Elham Alizadeh, Karim Moradiankokhdan, Behroz Razmeh
Pantothenate Kinase-Associated Neurodegeneration (PKAN) is an autosomal recessive disorder characterized by a mutation in the PANK 2 gene. The clinical presentation may range from only speech disorder to severe generalized dystonia, spasticity, Visual loss, dysphagia and dementia. The hallmark of this disease is eyes of the tiger sign in the medial aspect of bilateral globus pallidus on T2-weighted MRI that is a hyperintense lesion surrounded by hypointensity. Common treatments for PKAN disease include anticholinergics, botulinum toxin, Oral and Intrathecal baclofen, Iron chelation drugs and surgical procedures such as ablative pallidotomy or thalamotomy, Deep brain stimulation...
March 30, 2018: Neurology International
https://www.readbyqxmd.com/read/29768338/botulinum-toxin-injection-to-improve-functional-independence-and-to-alleviate-parenting-stress-in-a-child-with-advanced-pantothenate-kinase-associated-neurodegeneration-a-case-report-and-literature-review
#2
REVIEW
Cho-I Lin, Kuan-Lin Chen, Ta-Shen Kuan, Sheng-Han Lin, Wei-Pin Lin, Yu-Ching Lin
RATIONALE: Pantothenate kinase-associated neurodegeneration (PKAN) is a rare autosomal recessive disease. Progressive motor symptoms such as dystonia and spasticity begin in childhood and relentlessly become incapacitating later in life. Treatments including anticholinergics and iron chelation are usually ineffective. Botulinum toxin type A (BoNT-A) is effective for adult patients with dystonia or spasticity. PATIENT CONCERNS: We reported a 10-year-old female patient with advanced PKAN, manifesting as generalized dystonia and spasticity...
May 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29767814/inborn-errors-of-coenzyme-a-metabolism-and-neurodegeneration
#3
Ivano Di Meo, Miryam Carecchio, Valeria Tiranti
Two inborn errors of coenzyme A (CoA) metabolism are responsible for distinct forms of neurodegeneration with brain iron accumulation (NBIA), a heterogeneous group of neurodegenerative diseases having as a common denominator iron accumulation mainly in the inner portion of globus pallidus. Pantothenate kinase-associated neurodegeneration (PKAN), an autosomal recessive disorder with progressive impairment of movement, vision and cognition, is the most common form of NBIA and is caused by mutations in the pantothenate kinase 2 gene (PANK2), coding for a mitochondrial enzyme, which phosphorylates vitamin B5 in the first reaction of the CoA biosynthetic pathway...
May 16, 2018: Journal of Inherited Metabolic Disease
https://www.readbyqxmd.com/read/29765892/botulinum-toxin-a-injection-in-the-treatment-of-spasticity-in-a-infantile-onset-neurodegeneration-with-brain-iron-accumulation-a-case-report
#4
Hwan Kwon Do, Geun Yeol Jo, Jun Koo Kwon, Woo Jin Kim
Pantothenate kinase-associated neurodegeneration (PKAN) is a neurodegenerative disorder characterized by iron accumulation in the globus pallidus (GP) of the brain (neurodegeneration with brain iron accumulation [NBIA]), which is characterized by dystonia and spasticity resulting in postural difficulties. A 33-month-old boy was admitted with a pronounced gait disturbance. Marked hypertonicity in the patient's both calf muscles was noted, resulting in waddling with repeated slip-falls. NBIA was suspected by high T2 intensity in the GP on brain MRI, then it was confirmed by detecting PANK2 mutation...
April 2018: Annals of Rehabilitation Medicine
https://www.readbyqxmd.com/read/29619158/a-pilot-trial-of-deferiprone-in-pantothenate-kinase-associated-neurodegeneration-patients
#5
Mohammad Rohani, Saeed Razmeh, Gholam Ali Shahidi, Elham Alizadeh, Maryam Orooji
Pantothenate kinase-associated neurodegeneration (PKAN) is the most common form of neurodegeneration with brain iron accumulation, it is an autosomal recessive disease due to mutation in PANK 2 on chromosome 20, which causes the accumulation of iron in basal ganglia and production of free radicals that cause degeneration of the cells. Deferiprone is an iron chelator that was used in treatment of thalassemia patients, it can cross the blood-brain barrier and reverse the iron deposition in the brain. Five patients with genetically confirmed PKAN received 15 mg/kg deferiprone twice daily...
December 11, 2017: Neurology International
https://www.readbyqxmd.com/read/29325618/neurodegeneration-with-brain-iron-accumulation
#6
Susan J Hayflick, Manju A Kurian, Penelope Hogarth
Neurodegeneration with brain iron accumulation (NBIA) comprises a clinically and genetically heterogeneous group of disorders affecting children and adults. These rare disorders are often first suspected when increased basal ganglia iron is observed on brain magnetic resonance imaging. For the majority of NBIA disorders the genetic basis has been delineated, and clinical testing is available. The four most common NBIA disorders include pantothenate kinase-associated neurodegeneration (PKAN) due to mutations in PANK2, phospholipase A2 -associated neurodegeneration caused by mutation in PLA2G6, mitochondrial membrane protein-associated neurodegeneration from mutations in C19orf12, and beta-propeller protein-associated neurodegeneration due to mutations in WDR45...
2018: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/29135293/-from-the-hallervorden-spatz-eponym-to-the-molecular-terminology
#7
Ferenc Garzuly
INTRODUCTION AND AIM: A combination of Niemann-Pick- and Hallervorden-Spatz diseases led to the death of a 17-year-old boy in 1994. Genetic counseling necessitated further investigations in 2017. Meanwhile, the nomenclature of Hallervorden-Spatz disease has been abandoned. The author analyze the reasons for this change. METHOD: Professional activities of Hallervorden and Spatz during and after the Nazi euthanasia program are presented. Also, the scientific efforts that led to the discovery of the genetic background of the disease and ultimately to its new name are highlighted...
October 2017: Orvosi Hetilap
https://www.readbyqxmd.com/read/28881514/-phenotypic-and-genotypic-features-of-twenty-children-with-classic-pantothenate-kinase-associated-neurodegeneration
#8
J Zhou, J He, L P Kou, H C Feng, Y H Deng, Z B Zhang, L Zhou, J M Wang, Y W Jiang, Y Wu
Objective: To explore the phenotypic and genotypic characteristics in Chinese children with classic pantothenate kinase-associated neurodegeneration (PKAN). Method: The clinical, radiographic and genetic data of all PKAN patients diagnosed at pediatric department of Peking University First Hospital from November 2006 to December 2016 were retrospectively collected and analyzed. Result: Twenty patients with classic PKAN were included in the study. The median age at onset was 3.5 years (ranging from 1.0 to 10...
September 2, 2017: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/28680084/a-variation-in-pank2-gene-is-causing-pantothenate-kinase-associated-neurodegeneration-in-a-family-from-jammu-and-kashmir-india
#9
Arshia Angural, Inderpal Singh, Ankit Mahajan, Pranav Pandoh, Manoj K Dhar, Sanjana Kaul, Vijeshwar Verma, Ekta Rai, Sushil Razdan, Kamal Kishore Pandita, Swarkar Sharma
Pantothenate kinase-associated neurodegeneration is a rare hereditary neurodegenerative disorder associated with nucleotide variation(s) in mitochondrial human Pantothenate kinase 2 (hPanK2) protein encoding PANK2 gene, and is characterized by symptoms of extra-pyramidal dysfunction and accumulation of non-heme iron predominantly in the basal ganglia of the brain. In this study, we describe a familial case of PKAN from the State of Jammu and Kashmir (J&K), India based on the clinical findings and genetic screening of two affected siblings born to consanguineous normal parents...
July 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28629633/atypical-pantothenate-kinase-associated-neurodegeneration-clinical-description-of-two-brothers-and-a-review-of-the-literature
#10
S Mahoui, A Benhaddadi, W Ameur El Khedoud, M Abada Bendib, M Chaouch
Two clinical forms of pantothenate kinase-associated neurodegeneration (PKAN) have been described: typical PKAN and atypical PKAN. Atypical PKAN has later onset and a slower course of disease. This report describes two siblings with the atypical form of PKAN, combining dystonia, irritability and a dysmorphia syndrome. In addition, a review of the literature was carried out for all published cases of atypical PKAN to gather descriptions of its various clinical presentations, age of onset and MRI findings, and to highlight the different treatments used for PKAN patients...
December 2017: Revue Neurologique
https://www.readbyqxmd.com/read/28567317/open-label-fosmetpantotenate-a-phosphopantothenate-replacement-therapy-in-a-single-patient-with-atypical-pkan
#11
Yiolanda-Panayiota Christou, George A Tanteles, Elena Kkolou, Annita Ormiston, Kostas Konstantopoulos, Maria Beconi, Randall D Marshall, Horacio Plotkin, Kleopas A Kleopa
Objective. Pantothenate kinase-associated neurodegeneration (PKAN) is an autosomal recessive disorder with variable onset, rate of progression, and phenotypic expression. Later-onset, more slowly progressive PKAN often presents with neuropsychiatric as well as motor manifestations that include speech difficulties, progressive dystonia, rigidity, and parkinsonism. PKAN is caused by biallelic PANK2 mutations, a gene that encodes pantothenate kinase 2, a regulatory enzyme in coenzyme A biosynthesis. Current therapeutic strategies rely on symptomatic relief...
2017: Case Reports in Neurological Medicine
https://www.readbyqxmd.com/read/28489334/diagnosis-of-copan-by-whole-exome-sequencing-waking-up-a-sleeping-tiger-s-eye
#12
Christina Evers, Angelika Seitz, Birgit Assmann, Thomas Opladen, Stephanie Karch, Katrin Hinderhofer, Martin Granzow, Nagarajan Paramasivam, Roland Eils, Nicolle Diessl, Claus R Bartram, Ute Moog
Neurodegeneration with brain iron accumulation (NBIA) is a group of neurodegenerative disorders characterized by iron accumulation in the basal ganglia. Recently, mutations in CoA synthase (COASY) have been identified as a cause of a novel NBIA subtype (COASY Protein-Associated Neurodegeneration, CoPAN) in two patients with dystonic paraparesis, parkinsonian features, cognitive impairment, behavior abnormalities, and axonal neuropathy. COASY encodes an enzyme required for Coenzyme A (CoA) biosynthesis. Using whole exome sequencing (WES) we identified compound heterozygous COASY mutations in two siblings with intellectual disability, ataxic gait, progressive spasticity, and obsessive-compulsive behavior...
May 10, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28456385/changes-in-red-blood-cell-membrane-lipid-composition-a-new-perspective-into-the-pathogenesis-of-pkan
#13
Manar Aoun, Paola Antonia Corsetto, Guillaume Nugue, Gigliola Montorfano, Emilio Ciusani, David Crouzier, Penelope Hogarth, Allison Gregory, Susan Hayflick, Giovanna Zorzi, Angela Maria Rizzo, Valeria Tiranti
Pantothenate Kinase-Associated Neurodegeneration (PKAN) is a form of Neurodegeneration with Brain Iron Accumulation (NBIA) associated with mutations in the pantothenate kinase 2 gene (PANK2). The PANK2 catalyzes the first step of coenzyme A (CoA) biosynthesis, a pathway producing an essential cofactor that plays a key role in energy and lipid metabolism. The majority of PANK2 mutations reduces or abolishes the activity of the enzyme. In around 10% of cases with PKAN, the presence of deformed red blood cells with thorny protrusions in the circulation has been detected...
June 2017: Molecular Genetics and Metabolism
https://www.readbyqxmd.com/read/28113101/clinical-and-genetic-features-of-pkan-patients-in-a-tertiary-centre-in-turkey
#14
Nihan Hande Akcakaya, Sibel Ugur Iseri, Birdal Bilir, Esra Battaloglu, Pinar Tekturk, Murat Gultekin, Gokcen Akar, Remzi Yigiter, Hasmet Hanagasi, Recep Alp, Sultan Cagirici, Mefkure Eraksoy, Ugur Ozbek, Zuhal Yapici
OBJECTIVE: Pantothenate kinase-associated neurodegeneration (PKAN) is caused by mutations of the pantothenate kinase 2 (PANK2) gene. The major clinical sign of PKAN is dystonia and the eye-of-the-tiger pattern on the MRI has been a clue for the diagnosis. We aim to discuss clinical and genetic findings of 22 PKAN patients from 13 families. METHODS: Twenty-two patients were clinically diagnosed with PKAN and screened for PANK2 mutations. The patients were classified according to their onset age and progression rate...
March 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28055131/subthalamic-nuclei-stimulation-in-patients-with-pantothenate-kinase-associated-neurodegeneration-pkan
#15
REVIEW
Ziyuan Liu, Yang Liu, Yingmai Yang, Lin Wang, Wanchen Dou, Jinzhu Guo, Yu Wang, Yi Guo, Xinhua Wan, Wenbin Ma, Renzhi Wang
INTRODUCTION: Pantothenate kinase-associated neurodegeneration (PKAN) is a rare autosomal recessive genetic disease that leads to extrapyramidal symptoms, such as dystonia, ataxia, dysarthria, and involuntary movements. Treatment of PKAN with deep brain stimulation (DBS) has been reported, but mainly focuses on targeting the globus pallidus internus (GPi). Subthalamic nuclei (STN) may also be a potential target for treatment of PKAN. METHODS: In this study, we reviewed three patients with PKAN (two with typical PKAN and one with atypical PKAN) treated by bilateral STN stimulation and present a review of the literature...
July 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/28034613/consensus-clinical-management-guideline-for-pantothenate-kinase-associated-neurodegeneration-pkan
#16
Penelope Hogarth, Manju A Kurian, Allison Gregory, Barbara Csányi, Tamara Zagustin, Tomasz Kmiec, Patricia Wood, Angelika Klucken, Natale Scalise, Francesca Sofia, Thomas Klopstock, Giovanna Zorzi, Nardo Nardocci, Susan J Hayflick
No abstract text is available yet for this article.
March 2017: Molecular Genetics and Metabolism
https://www.readbyqxmd.com/read/27815806/first-successful-trial-of-preimplantation-genetic-diagnosis-for-pantothenate-kinase-associated-neurodegeneration
#17
Objoon Trachoo, Chonthicha Satirapod, Bhakbhoom Panthan, Matchuporn Sukprasert, Angkana Charoenyingwattana, Wasun Chantratita, Wicharn Choktanasiri, Suradej Hongeng
PURPOSE: We aim to present a case of a healthy infant born after intracytoplasmic sperm injection-in vitro fertilization (ICSI-IVF) with a preimplantation genetic diagnosis (PGD) for pantothenate kinase-associated neurodegeneration (PKAN) due to PANK2 mutation. METHODS: ICSI-IVF was performed on a Thai couple, 34-year-old female and 33-year-old male, with a family history of PKAN in their first child. Following fertilization, each of the embryos were biopsied in the cleavage stage and subsequently processed for whole-genome amplification...
January 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/27516453/coenzyme-a-corrects-pathological-defects-in-human-neurons-of-pank2-associated-neurodegeneration
#18
Daniel I Orellana, Paolo Santambrogio, Alicia Rubio, Latefa Yekhlef, Cinzia Cancellieri, Sabrina Dusi, Serena G Giannelli, Paola Venco, Pietro G Mazzara, Anna Cozzi, Maurizio Ferrari, Barbara Garavaglia, Stefano Taverna, Valeria Tiranti, Vania Broccoli, Sonia Levi
Pantothenate kinase-associated neurodegeneration (PKAN) is an early onset and severely disabling neurodegenerative disease for which no therapy is available. PKAN is caused by mutations in PANK2, which encodes for the mitochondrial enzyme pantothenate kinase 2. Its function is to catalyze the first limiting step of Coenzyme A (CoA) biosynthesis. We generated induced pluripotent stem cells from PKAN patients and showed that their derived neurons exhibited premature death, increased ROS production, mitochondrial dysfunctions-including impairment of mitochondrial iron-dependent biosynthesis-and major membrane excitability defects...
October 2016: EMBO Molecular Medicine
https://www.readbyqxmd.com/read/27487380/a-diagnostic-approach-for-neurodegeneration-with-brain-iron-accumulation-clinical-features-genetics-and-brain-imaging
#19
REVIEW
Rubens Paulo Araújo Salomão, José Luiz Pedroso, Maria Thereza Drumond Gama, Lívia Almeida Dutra, Ricardo Horta Maciel, Clécio Godeiro-Junior, Hsin Fen Chien, Hélio A G Teive, Francisco Cardoso, Orlando G P Barsottini
Neurodegeneration with brain iron accumulation (NBIA) represents a heterogeneous and complex group of inherited neurodegenerative diseases, characterized by excessive iron accumulation, particularly in the basal ganglia. Common clinical features of NBIA include movement disorders, particularly parkinsonism and dystonia, cognitive dysfunction, pyramidal signs, and retinal abnormalities. The forms of NBIA described to date include pantothenase kinase-associated neurodegeneration (PKAN), phospholipase A2 associated neurodegeneration (PLAN), neuroferritinopathy, aceruloplasminemia, beta-propeller protein-associated neurodegeneration (BPAN), Kufor-Rakeb syndrome, mitochondrial membrane protein-associated neurodegeneration (MPAN), fatty acid hydroxylase-associated neurodegeneration (FAHN), coenzyme A synthase protein-associated neurodegeneration (CoPAN) and Woodhouse-Sakati syndrome...
July 2016: Arquivos de Neuro-psiquiatria
https://www.readbyqxmd.com/read/27476418/movement-disorders-in-mitochondrial-diseases
#20
REVIEW
C Tranchant, M Anheim
Mitochondrial diseases (MIDs) are a large group of heterogeneous disorders due to mutations in either mitochondrial DNA (mtDNA) or nuclear DNA (nDNA) genes, the latter encoding proteins involved in mitochondrial function. A multisystem clinical picture that involves several organs, including both the peripheral and central nervous systems, is a common presentation of MID. Movement disorders, even isolated ones, are not rare. Cerebellar ataxia is common in myoclonic epilepsy with ragged red fibers (MERFF) due to mutations in the mitochondrial transfer RNA (tRNA) lysine gene, in Kearns-Sayre syndrome due to mtDNA deletions, in sensory ataxic neuropathy with dysarthria and ophthalmoplegia (SANDO) due to nuclear POLG1 gene mutations, and also in ARCA2, Friedreich's ataxia, SPG7, SCA28 and autosomal-recessive spastic ataxia of Charlevoix-Saguenay (ARSACS) due to mutations in nuclear genes involved in mitochondrial morphology or function...
August 2016: Revue Neurologique
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