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Lipid storage myopathy

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https://www.readbyqxmd.com/read/29615056/patient-with-multiple-acyl-coa-dehydrogenase-deficiency-disease-and-etfdh-mutations-benefits-from-riboflavin-therapy-a-case-report
#1
Liuh Ling Goh, Yingshan Lee, Ee Shien Tan, James Soon Chuan Lim, Chia Wei Lim, Rinkoo Dalan
BACKGROUND: Lipid storage myopathy (LSM) is a diverse group of lipid metabolic disorders with great variations in the clinical phenotype and age of onset. Classical multiple acyl-CoA dehydrogenase deficiency (MADD) is known to occur secondary to mutations in electron transfer flavoprotein dehydrogenase (ETFDH) gene. Whole exome sequencing (WES) with clinical correlations can be useful in identifying genomic alterations for targeted therapy. CASE PRESENTATION: We report a patient presented with severe muscle weakness and exercise intolerance, suggestive of LSM...
April 3, 2018: BMC Medical Genomics
https://www.readbyqxmd.com/read/29539587/patients-with-neutral-lipid-storage-disease-with-myopathy-nlsdm-in-southwestern-china
#2
Jiaze Tan, Haitao Yang, Jingchuan Fan, Yulan Fan, Fei Xiao
OBJECTIVES: Neutral lipid storage disease with myopathy (NLSDM) is a rare metabolic myopathy occurring owing to mutations in the patatin like phospholipase domain containing 2 (PNPLA2) gene. Till date, less than 50 patients with PNPLA2 mutations have been reported. In this study, we describe the clinical, pathological, and genetic findings, and muscle magnetic resonance imaging (MRI) changes in four Chinese patients with NLSDM. PATIENTS AND METHODS: Peripheral blood smears were stained using Wright's stain...
March 5, 2018: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29475365/a-new-case-of-chanarin-dorfman-syndrome-with-a-novel-deletion-in-abhd5-gene
#3
Shahrbanoo Nakhaei, Hamed Heidary, Aliasghar Rahimian, Mahdi Vafadar, Farzaneh Rohani, Gholam Reza Bahoosh, Davoud Amirkashani
Chanarin-Dorfman syndrome (CDS) is a rare autosomal recessive metabolic disorder caused by mutations in gene encoding the domain-5 of α/β-hydrolase enzyme (ABHD5). It is known as a natural lipid storage disorder arising from impaired lipid metabolism often characterized by hepatomegaly, myopathy, ataxia, non-bullous ichthyosiform erythroderma, hearing loss, and mental retardation. In the present study, we report two affected 28-month-old monozygotic twin boys as a new case of CDS. Genetic analysis was performed in patients, and the results showed a homozygote deletion in exon 4 of ABHD5...
February 24, 2018: Iranian Biomedical Journal
https://www.readbyqxmd.com/read/29424033/mitochondrial-dysfunction-in-human-skeletal-muscle-biopsies-of-lipid-storage-disorder
#4
B Debashree, Manish Kumar, T S Keshava Prasad, Archana Natarajan, Rita Christopher, A Nalini, P S Bindu, N Gayathri, M M Srinivas Bharath
Mitochondria regulate the balance between lipid metabolism and storage in the skeletal muscle. Altered lipid transport, metabolism and storage influence the bioenergetics, redox status and insulin signalling contributing to cardiac and neurological diseases. Lipid storage disorders (LSDs) are neurological disorders which entail intramuscular lipid accumulation and impaired mitochondrial bioenergetics in the skeletal muscle causing progressive myopathy with muscle weakness. However, the mitochondrial changes including molecular events associated with impaired lipid storage have not been completely understood in the human skeletal muscle...
February 9, 2018: Journal of Neurochemistry
https://www.readbyqxmd.com/read/29228356/dietary-intervention-rescues-myopathy-associated-with-neurofibromatosis-type-1
#5
Matthew A Summers, Thusitha Rupasinghe, Emily R Vasiljevski, Frances J Evesson, Kathy Mikulec, Lauren Peacock, Kate G R Quinlan, Sandra T Cooper, Ute Roessner, David A Stevenson, David G Little, Aaron Schindeler
Neurofibromatosis type 1 (NF1) is an autosomal dominant genetic disorder with complex symptomology. In addition to a predisposition to tumors, children with NF1 can present with reduced muscle mass, global muscle weakness, and impaired motor skills, which can have a significant impact on quality of life. Genetic mouse models have shown a lipid storage disease phenotype may underlie muscle weakness in NF1. Herein we confirm that biopsy specimens from six individuals with NF1 similarly manifest features of a lipid storage myopathy, with marked accumulation of intramyocellular lipid, fibrosis, and mononuclear cell infiltrates...
February 15, 2018: Human Molecular Genetics
https://www.readbyqxmd.com/read/28950901/compound-heterozygous-mutations-in-electron-transfer-flavoprotein-dehydrogenase-identified-in-a-young-chinese-woman-with-late-onset-glutaric-aciduria-type-ii
#6
Ying Xue, Yun Zhou, Keqin Zhang, Ling Li, Abudurexiti Kayoumu, Liye Chen, Yuhui Wang, Zhiqiang Lu
BACKGROUND: Glutaric aciduria type II (GA II) is an autosomal recessive disorder affecting fatty acid and amino acid metabolism. The late-onset form of GA II disorder is almost exclusively associated with mutations in the electron transfer flavoprotein dehydrogenase (ETFDH) gene. Till now, the clinical features of late-onset GA II vary widely and pose a great challenge for diagnosis. The aim of the current study is to characterize the clinical phenotypes and genetic basis of a late-onset GAII patient...
September 26, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28914566/a-novel-etfdh-mutation-in-an-adult-patient-with-late-onset-riboflavin-responsive-multiple-acyl-coa-dehydrogenase-deficiency
#7
Min Chen, Jing Peng, Wei Wei, Rui Wang, Hongliang Xu, Hongbo Liu
AIM OF THE STUDY: To report a novel mutation in the electron transfer flavoprotein dehydrogenase (ETFDH) gene in an adult patient with late-onset riboflavin-responsive multiple acyl-CoA dehydrogenase deficiency. MATERIALS AND METHODS: The genomic DNAs from a patient whose main clinical presentations are muscles weakness and hypoglycemia was analysed. RESULTS: The patient was identified to carry compound heterozygous mutations in ETFDH gene...
March 2018: International Journal of Neuroscience
https://www.readbyqxmd.com/read/28863457/bortezomib-induced-muscle-toxicity-in-multiple-myeloma
#8
Valeria Guglielmi, Dominika Nowis, Martina Tinelli, Manuela Malatesta, Laura Paoli, Matteo Marini, Paolo Manganotti, Radoslaw Sadowski, Grzegorz M Wilczynski, Vittorio Meneghini, Giuliano Tomelleri, Gaetano Vattemi
Multiple myeloma (MM) accounts for ∼13% of all hematologic malignancies. Bortezomib treatment is effective in MM, but can be complicated with neurological side effects. We describe a patient with symptomatic MM who had a reversible metabolic myopathy associated with bortezomib administration and pathologically characterized by excessive storage of lipid droplets together with mitochondrial abnormalities. In a single-center prospective study, 14 out of 24 patients with symptomatic MM were treated with bortezomib and, among these, 7 developed muscular signs and/or symptoms...
July 1, 2017: Journal of Neuropathology and Experimental Neurology
https://www.readbyqxmd.com/read/28624465/muscle-pathology-in-vici-syndrome-a-case-study-with-a-novel-mutation-in-epg5-and-a-summary-of-the-literature
#9
Carola Hedberg-Oldfors, Niklas Darin, Anders Oldfors
Vici syndrome is a disorder characterized by myopathy, cardiomyopathy, agenesis of the corpus callosum, immunodeficiency, cataracts, hypopigmentation, microcephaly, gross developmental delay and failure to thrive. It is caused by mutations in EPG5, which encodes a protein involved in the autophagy pathway. Although myopathy is part of the syndrome, few publications have described the muscle pathology. We present a detailed morphological analysis in a boy with Vici syndrome due to a novel homozygous one-base deletion in EPG5 (c...
May 8, 2017: Neuromuscular Disorders: NMD
https://www.readbyqxmd.com/read/28503705/muscle-mri-in-neutral-lipid-storage-disease-nlsd
#10
Matteo Garibaldi, Giorgio Tasca, Jordi Diaz-Manera, Pierfancesco Ottaviani, Francesco Laschena, Donatella Pantoli, Simonetta Gerevini, Chiara Fiorillo, Lorenzo Maggi, Elisabetta Tasca, Adele D'Amico, Olimpia Musumeci, Antonio Toscano, Claudio Bruno, Roberto Massa, Corrado Angelini, Enrico Bertini, Giovanni Antonini, Elena Maria Pennisi
Neutral lipid storage disease (NLSD) is a rare inherited disorder of lipid metabolism resulting in lipid droplets accumulation in different tissues. Skeletal muscle could be affected in both two different form of disease: NLSD with myopathy (NLSD-M) and NLSD with ichthyosis (NLSD-I). We present the muscle imaging data of 12 patients from the Italian Network for NLSD: ten patients presenting NLSD-M and two patients with NLSD-I. In NLSD-M gluteus minimus, semimembranosus, soleus and gastrocnemius medialis in the lower limbs and infraspinatus in the upper limbs were the most affected muscles...
July 2017: Journal of Neurology
https://www.readbyqxmd.com/read/28499397/neutral-lipid-storage-diseases-clinical-genetic-features-and-natural-history-in-a-large-cohort-of-italian-patients
#11
Elena Maria Pennisi, Marcello Arca, Enrico Bertini, Claudio Bruno, Denise Cassandrini, Adele D'amico, Matteo Garibaldi, Francesca Gragnani, Lorenzo Maggi, Roberto Massa, Sara Missaglia, Lucia Morandi, Olimpia Musumeci, Elena Pegoraro, Emanuele Rastelli, Filippo Maria Santorelli, Elisabetta Tasca, Daniela Tavian, Antonio Toscano, Corrado Angelini
BACKGROUND: A small number of patients affected by Neutral Lipid Storage Diseases (NLSDs: NLSD type M with Myopathy and NLSD type I with Ichthyosis) have been described in various ethnic groups worldwide. However, relatively little is known about the progression and phenotypic variability of the disease in large specific populations. The aim of our study was to assess the natural history, disability and genotype-phenotype correlations in Italian patients with NLSDs. Twenty-one patients who satisfied the criteria for NLSDs were enrolled in a retrospective cross-sectional study to evaluate the genetic aspects, clinical signs at onset, disability progression and comorbidities associated with this group of diseases...
May 12, 2017: Orphanet Journal of Rare Diseases
https://www.readbyqxmd.com/read/28456887/heterogeneous-phenotypes-in-lipid-storage-myopathy-due-to-etfdh-gene-mutations
#12
Corrado Angelini, Daniela Tavian, Sara Missaglia
We present six novel patients affected by lipid storage myopathy (LSM) presenting mutations in the ETFDH gene. Although the diagnosis of multiple acyl-coenzyme-A dehydrogenase deficiency (MADD) in adult life is difficult, it is rewarding because of the possibility of treating patients with carnitine or riboflavin, leading to a full recovery. In our patients, a combination of precipitating risk factors including previous anorexia, alcoholism, poor nutrition, and pregnancy contributed to a metabolic critical condition that precipitated the catabolic state...
April 30, 2017: JIMD Reports
https://www.readbyqxmd.com/read/28391974/generation-of-induced-pluripotent-stem-cells-as-disease-modelling-of-nlsdm
#13
D Tavian, S Missaglia, M Castagnetta, D Degiorgio, E M Pennisi, R A Coleman, P Dell'Era, C Mora, C Angelini, D A Coviello
Neutral Lipid Storage Disease with Myopathy (NLSDM) is a rare defect of triacylglycerol metabolism, characterized by the abnormal storage of neutral lipid in organelles known as lipid droplets (LDs). The main clinical features are progressive myopathy and cardiomyopathy. The onset of NLSDM is caused by autosomal recessive mutations in the PNPLA2 gene, which encodes adipose triglyceride lipase (ATGL). Despite its name, this enzyme is present in a wide variety of cell types and catalyzes the first step in triacylglycerol lipolysis and the release of fatty acids...
May 2017: Molecular Genetics and Metabolism
https://www.readbyqxmd.com/read/28258942/late-onset-of-neutral-lipid-storage-disease-due-to-novel-pnpla2-mutations-causing-total-loss-of-lipase-activity-in-a-patient-with-myopathy-and-slight-cardiac-involvement
#14
Sara Missaglia, Lorenzo Maggi, Marina Mora, Sara Gibertini, Flavia Blasevich, Piergiuseppe Agostoni, Laura Moro, Denise Cassandrini, Filippo Maria Santorelli, Simonetta Gerevini, Daniela Tavian
Neutral lipid storage disease with myopathy (NLSDM) presents with skeletal muscle myopathy and severe dilated cardiomyopathy in nearly 40% of cases. NLSDM is caused by mutations in the PNPLA2 gene, which encodes the adipose triglyceride lipase (ATGL). Here we report clinical and genetic findings of a patient carrying two novel PNPLA2 mutations (c.696+4A>G and c.553_565delGTCCCCCTTCTCG). She presented at age 39 with right upper limb abduction weakness slowly progressing over the years with asymmetric involvement of proximal upper and lower limb muscles...
May 2017: Neuromuscular Disorders: NMD
https://www.readbyqxmd.com/read/27486434/statin-therapy-alters-lipid-storage-in-diabetic-skeletal-muscle
#15
Irena A Rebalka, Matthew J Raleigh, Laelie A Snook, Alexandra N Rebalka, Rebecca E K MacPherson, David C Wright, Jonathan D Schertzer, Thomas J Hawke
While statins significantly reduce cholesterol levels and thereby reduce the risk of cardiovascular disease, the development of myopathy with statin use is a significant clinical side effect. Recent guidelines recommend increasing inclusion criteria for statin treatment in diabetic individuals; however, the impact of statins on skeletal muscle health in those with diabetes (who already suffer from impairments in muscle health) is ill defined. Here, we investigate the effects of fluvastatin treatment on muscle health in wild type (WT) and streptozotocin (STZ)-induced diabetic mice...
2016: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/27428459/analysis-of-lipid-profile-in-lipid-storage-myopathy
#16
M'hammed Aguennouz, Marco Beccaria, Giorgia Purcaro, Marianna Oteri, Giuseppe Micalizzi, Olimpia Musumesci, Annmaria Ciranni, Rosa Maria Di Giorgio, Antonio Toscano, Paola Dugo, Luigi Mondello
Lipid dysmetabolism disease is a condition in which lipids are stored abnormally in organs and tissues throughout the body, causing muscle weakness (myopathy). Usually, the diagnosis of this disease and its characterization goes through dosage of Acyl CoA in plasma accompanied with evidence of droplets of intra-fibrils lipids in the patient muscle biopsy. However, to understand the pathophysiological mechanisms of lipid storage diseases, it is useful to identify the nature of lipids deposited in muscle fiber...
September 1, 2016: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/27270537/skeletal-muscle-magnetic-resonance-imaging-of-the-lower-limbs-in-late-onset-lipid-storage-myopathy-with-electron-transfer-flavoprotein-dehydrogenase-gene-mutations
#17
Xin-Yi Liu, Ming Jin, Zhi-Qiang Wang, Dan-Ni Wang, Jun-Jie He, Min-Ting Lin, Hong-Xia Fu, Ning Wang
BACKGROUND: Lipid storage myopathy (LSM) is a genetically heterogeneous group with variable clinical phenotypes. Late-onset multiple acyl-coenzyme A dehydrogenation deficiency (MADD) is a rather common form of LSM in China. Diagnosis and clinical management of it remain challenging, especially without robust muscle biopsy result and genetic detection. As the noninvasion and convenience, muscle magnetic resonance imaging (MRI) is a helpful assistant, diagnostic tool for neuromuscular disorders...
June 20, 2016: Chinese Medical Journal
https://www.readbyqxmd.com/read/27085974/lipolysis-and-lipophagy-in-lipid-storage-myopathies
#18
Corrado Angelini, Anna Chiara Nascimbeni, Giovanna Cenacchi, Elisabetta Tasca
AIMS: Triglycerides droplets are massively stored in muscle in Lipid Storage Myopathies (LSM). We studied in muscle regulators of lipophagy, the expression of the transcription factor-EB (TFEB) (a master regulator of lysosomal biogenesis), and markers of autophagy which are induced by starvation and exert a transcriptional control on lipid catabolism. METHODS: We investigated the factors that regulate lipophagy in muscle biopsies from 6 patients with different types of LSM: 2 cases of riboflavin-responsive multiple acyl-CoA dehydrogenase deficiency (MADD), 1 case of primary carnitine deficiency (CD), 2 cases of neutral lipid storage myopathy (NLSD-M), 1 case of carnitine-palmitoyl-transferase-II (CPT) deficiency...
July 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27000805/significant-clinical-heterogeneity-with-similar-etfdh-genotype-in-three-chinese-patients-with-late-onset-multiple-acyl-coa-dehydrogenase-deficiency
#19
Hong-Xia Fu, Xin-Yi Liu, Zhi-Qiang Wang, Ming Jin, Dan-Ni Wang, Jun-Jie He, Min-Ting Lin, Ning Wang
Late-onset multiple acyl-CoA dehydrogenase deficiency (MADD) with electron transfer flavoprotein dehydrogenase (ETFDH) gene mutations is the most common lipid storage myopathy (LSM) in China. Its clinical features vary widely and pose a challenge for diagnosis. We presented the significant clinical heterogeneity among three Chinese late-onset MADD patients with similar ETFDH genotype by collecting clinical information, muscle histology, and genetic analysis. Three novel compound heterozygous variants of ETFDH gene were identified: c...
July 2016: Neurological Sciences
https://www.readbyqxmd.com/read/26830983/a-historical-cohort-study-on-the-efficacy-of-glucocorticoids-and-riboflavin-among-patients-with-late-onset-multiple-acyl-coa-dehydrogenase-deficiency
#20
Xin-Yi Liu, Zhi-Qiang Wang, Dan-Ni Wang, Min-Ting Lin, Ning Wang
BACKGROUND: Late-onset multiple acyl-CoA dehydrogenase deficiency (MADD) is the most common type of lipid storage myopathies in China. Most patients with late-onset MADD are well responsive to riboflavin. Up to now, these patients are often treated with glucocorticoids as the first-line drug because they are misdiagnosed as polymyositis without muscle biopsy or gene analysis. Although glucocorticoids seem to improve the fatty acid metabolism of late-onset MADD, the objective evaluation of their rationalization on this disorder and comparison with riboflavin treatment are unknown...
January 20, 2016: Chinese Medical Journal
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