Journals / Epilepsi / 2018 / Cilt: 24 - Sayı: 1

Lafora Disease: Molecular Etiology

Lafora Hastalığı: Moleküler Etiyoloji

Journal
Epilepsi
Pages
1–7
Publication Date
2022-10-17
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

In this review, the genotype-phenotype correlations, the genetic diagnosis of LD,the downregulation of glycogen metabolism as the main cause of LD pathogenesis and the regulation of glycogen synthesis as a key targetfor the treatment of LD are discussed.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Lafora Disease (LD) is a fatal neurodegenerative condition characterized by the accumulation of abnormal glycogen inclusions known asLafora bodies (LBs).
📊
Key Findings & Data:Patients with LD manifest myoclonus and tonic-clonic seizures, visual hallucinations, and progressive neurological deterioration beginning at the age of 8-18 years.
💡
Conclusion & Impact:In this review, the genotype-phenotype correlations, the genetic diagnosis of LD,the downregulation of glycogen metabolism as the main cause of LD pathogenesis and the regulation of glycogen synthesis as a key targetfor the treatment of LD are discussed.
🔬Design:Review & Systematic Survey
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Lafora Disease (LD) is a fatal neurodegenerative condition characterized by the accumulation of abnormal glycogen inclusions known asLafora bodies (LBs). Patients with LD manifest myoclonus and tonic-clonic seizures, visual hallucinations, and progressive neurological deterioration beginning at the age of 8-18 years. Mutations in either EPM2A gene encoding protein phosphatase laforin or NHLRC1 gene encodingubiquitin-ligase malin cause LD. Approximately, 200 distinct mutations accounting for the disease are listed in the Lafora progressive myoclonus epilepsy mutation and polymorphism database. In this review, the genotype-phenotype correlations, the genetic diagnosis of LD,the downregulation of glycogen metabolism as the main cause of LD pathogenesis and the regulation of glycogen synthesis as a key targetfor the treatment of LD are discussed.

Özet

Lafora hastalığı (LD) Lafora cisimleri (LB) olarak bilinen anormal glikojen yapıların birikmesi ile karakterize olan ölümcül bir nörodejeneratif hastalıktır. Lafora hastalarında 8–18 yaş arası başlayan miyoklonik ve tonik-klonik nöbetler, halüsinasyonlar ve ilerleyen nörolojik bozulma görülür. Lafora hastalığı protein fosfataz laforini kodlayan EPM2A geni veya ubikitin ligaz malini kodlayan NHLRC1 geni mutasyonları ile ortaya çıkar. Hastalığa sebep olan yaklaşık 200 farklı mutasyon “Lafora Progressive Myoclonus Epilepsy Mutation and Polymorphism Database” de listelenmiştir. Bu derleme makalede her iki gendeki mutasyonlar, genotip-fenotip ilişkileri, LD genetik tanısı, LD patojenezine yol açan başlıca mekanizma olarak glikojen metabolizmasının bozulması ve glikojen sentezi kontrolünün LD tedavisinde en önemli hedef olduğu tartışılmaktadır.

🔖

Cite This Article

ÇAĞLAYAN, S. H. (2022). Lafora Disease: Molecular Etiology. Epilepsi, Cilt: 24 - Sayı: 1, 1–7. https://ajindex.com/articles/501661

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (12)

  1. Jansen AC, Andermann E. Progressive Myoclonus Epilepsy, Lafora Type. In: Adam MP, Ardinger HH, Pagon RA, Wallace SE, Bean LJH, Stephens K, editors. GeneReviews. Seattle, WA: University of Washington; 1993–2015. Minassian BA. Progressive myoclonus epilepsy with polyglucosan bodies: Lafora disease. Adv Neurol 2002;89:199–210.
  2. Gomez-Abad C, Afawi Z, Korczyn AD, Misk A, Shalev SA, Spiegel R, et al. Founder effect with variable age at onset in Arab families with Lafora disease and EPM2A mutation. Epilepsia 2007;48(5):1011–4.
  3. Lohi H, Turnbull J, Zhao XC, Pullenayegum S, Ianzano L, Yahyaoui M, et al. Genetic diagnosis in Lafora disease: genotype-phenotype correlations and diagnostic pitfalls. Neurology 2007;68(13):996–1001. Minassian BA. Lafora’s disease: towards a clinical, pathologic, and molecular synthesis. Pediatr Neurol 2001;25(1):21–9.
  4. Altindag E, Kara B, Baykan B, Terzibasioglu E, Sencer S, Onat L, et al. MR spectroscopy findings in Lafora disease. J Neuroimaging 2009;19(4):359–65.
  5. Canafoglia L, Ciano C, Visani E, Anversa P, Panzica F, Viri M, et al. Short and long interval cortical inhibition in patients with Unverricht-Lundborg and Lafora body disease. Epilepsy Res 2010;89(2-3):232–7.
  6. Delgado-Escueta AV, Ganesh S, Yamakawa K. Advances in the genetics of progressive myoclonus epilepsy. Am J Med Genet 2001;106(2):129–38.
  7. Minassian BA, Lee JR, Herbrick JA, Huizenga J, Soder S, Mungall AJ, et al. Mutations in a gene encoding a novel protein tyrosine phosphatase cause progressive myoclonus epilepsy. Nat Genet 1998;20(2):171–4.
  8. Serratosa JM, Gómez-Garre P, Gallardo ME, Anta B, de Bernabé DB, Lindhout D, et al. A novel protein tyrosine phosphatase gene is mutated in progressive myoclonus epilepsy of the Lafora type (EPM2). Hum Mol Genet 1999;8(2):345–52.
  9. Chan EM, Bulman DE, Paterson AD, Turnbull J, Andermann E, Andermann F, et al. Genetic mapping of a new Lafora progressive myoclonus epilepsy locus (EPM2B) on 6p22. J Med Genet 2003;40(9):671–5.
  10. Chan EM, Young EJ, Ianzano L, Munteanu I, Zhao X, Christopoulos CC, et al. Mutations in NHLRC1 cause progressive myoclonus epilepsy. Nat Genet 2003;35(2):125–7.
  11. Chan EM, Omer S, Ahmed M, Bridges LR, Bennett C, Scherer SW, et al. Progressive myoclonus epilepsy with polyglucosans (Lafora disease): evidence for a third locus. Neurology 2004;63(3):565–7.
  12. Singh S, Suzuki T, Uchiyama A, Kumada S, Moriyama N, Hirose S, et al. Mutations in the NHLRC1 gene are the common cause for Lafora disease in the Japanese population. J Hum