====== Survival factor ======


Survival factors are drugs or biologically-occurring [[protein]]s that promote the health of nerve cells, such as photoreceptors. There are many different types of survival factors. Examples include, ciliary neurotrophic factor (CNTF), pigment epithelium-derived factor (PEDF), basic fibroblast growth factor (bFGF) and glial-derived neurotrophic factor (GDNF). 

see [[IGF-1]]

see [[Insulin like growth factor]].