lecture 20 chemo and radio therapy Flashcards
1
Q
what is radiation therapy
A
DNA damaging agent - showers the tumours with photons
2
Q
what are the two types of radiotherpy
A
direct
indirect
3
Q
how does indirect radiation work
A
creates a free radical
the free radical damages the DNA
4
Q
what does the principles of indirect radiation mean for hypoxic tumours
A
may not work
5
Q
what does indirect radiation require
A
oxygen
6
Q
what happens when the DNA is damaged by radiation therapy
A
apoptosis
