5th Semester → CNS🦋 Biochemistry

T1) Biochemical disorders in Alzheimer and prion diseases.

✍ protein folding occur during protein production within the cell

✍ Alzheimer is the most common cause of dementia

✍ misfolded protein in Alzheimer is amyloid beta peptide

✍amyloid beta peptide precursor is amyloid precursor protein

✍ amyloid precursor protein has large extracellular glycosated N- terminus & short cytoplasmic C-terminus

✍ greatest risk factor of Alzheimer is Age ( >65 y)the risk doubles every 5 years

✍ amyloid beta peptide gene on chromosome 21

✍ presenilin 1 gene on chromosome 14

✍ presenilin 2 gene on chromosome 1

✍ Prion disease = spongiform encephalitis = Mad cow disease

✍ misfolded protein in Prion is prion protein

✍ Prion has a very long incubation period