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Tay-Sachs Disease

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PRESENTATION OUTLINE

TAY-SACHS DISEASE

BY: JENNELLE VEENSTRA

CAUSES OF THE DISEASE

  • Gene(s) Responsible: Mutations in the HEXA gene disrupt the activity of beta-hexosaminidase A, which prevents the enzyme from breaking down GM2 ganglioside. Which accumulates to toxic levels, particularly in neurons in the brain and spinal cord.
  • It is a recessive trait. So if both parents have this trait then the child will be at a 25% chance of having this disease.

PATHOLOGY

  • Symptoms: seizures, vision and hearing loss, red spots in the eyes, muscle weakness, movement problems, etc.
  • Diagnosis: doctors check the symptoms, any hereditary family disorders and have a blood test done.
  • Impact: they will need medication, feeding tubes, respiratory care, physical therapy and constant attention.

PREVALENCE

  • How Common: 1 in every 300 people is a carrier.
  • It is more common among Ashkenazi Jewish people. In this case, 1 in every 30 people is a carrier.

TREATMENTS

  • Possibilities: there is no care for Tay-Sachs disease. Treatment typically consists of keeping the child in what is called palliative care.
  • Pros and Cons: Pro: it keeps the child from feeling pain and from uncomfortableness. Con: they are just prolonging the death of the child.

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