Tay-Sachs Disease
- PMID: 33232090
- Bookshelf ID: NBK564432
Tay-Sachs Disease
Excerpt
Tay-Sachs disease is a progressive, lethal neurodegenerative disorder caused by a deficiency of the enzyme hexosaminidase-A that results in the accumulation of GM2 gangliosides. GM2 gangliosidoses comprise 3 different diseases: Tay-Sachs disease, Sandhoff disease, and the AB variant. GM2 gangliosidoses manifest mainly with central nervous system dysfunction. Sandhoff disease is different from the other 2 gangliosidoses with its systemic involvement, including hepatosplenomegaly, cardiomegaly, macroglossia, and skeletal abnormalities.
The disease is classified into infantile, juvenile, and adult forms based on the age at presentation. Early diagnosis of Tay-Sachs is clinically challenging because of subtle clinical features and nonspecific biochemical findings. Accurate diagnosis is essential for proper management and reducing complications associated with the disease.
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Sections
- Continuing Education Activity
- Introduction
- Etiology
- Epidemiology
- Pathophysiology
- Histopathology
- History and Physical
- Evaluation
- Treatment / Management
- Differential Diagnosis
- Prognosis
- Complications
- Consultations
- Deterrence and Patient Education
- Enhancing Healthcare Team Outcomes
- Review Questions
- References
References
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- Gravel RA, Triggs-Raine BL, Mahuran DJ. Biochemistry and genetics of Tay-Sachs disease. Can J Neurol Sci. 1991 Aug;18(3 Suppl):419-23. - PubMed
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- Sheth J, Nair A, Sheth F, Ajagekar M, Dhondekar T, Panigrahi I, Bavdekar A, Nampoothiri S, Datar C, Gandhi A, Muranjan M, Kaur A, Desai M, Mistri M, Patel C, Naik P, Shah M, Godbole K, Kapoor S, Gupta N, Bijarnia-Mahay S, Kadam S, Solanki D, Desai S, Iyer A, Patel K, Patel H, Shah RC, Mehta S, Shah R, Bhavsar R, Shah J, Pandya M, Patel B, Shah S, Shah H, Shah S, Bajaj S, Shah S, Thaker N, Kalane U, Kamate M, Kn VR, Tayade N, Jagadeesan S, Jain D, Chandarana M, Singh J, Mehta S, Suresh B, Sheth H. Burden of rare genetic disorders in India: twenty-two years' experience of a tertiary centre. Orphanet J Rare Dis. 2024 Aug 13;19(1):295. - PMC - PubMed
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