(1) Heritability - mutations Flashcards
What gene is responsible for schizo?
No single gene is responsible
Linkage to susceptibility for schizo found for what pairs, but are they replicated?
21 of 23 chromosome pairs, but not replicated
May be due to
rare mutations
Different genes may cause schizo in
Different families and would be missed in population studies
Mutation in
DISC1 (schizophrenia 1) - occurs rarely
Is in some families with high incidence of schizophrenia: this gene is involved in
a. neuronal migration during development
b. neuronal differentiation and growth
c. guidance of axons during brain development
d. assembly of neurotransmitter receptors
e. formation of synapses
Mutations in this gene also associated with…
depression, bipolar, autism