Related by context. Frequent words. (Click for all words.) 65 dopamine neurons 61 retinal cells 59 substantia nigra 58 oligodendrocytes 58 nerve cells 58 motor neurons 56 insulin producing 56 neurogenesis 56 neurons 55 neural stem cells 55 photoreceptors 55 dopamine 55 neurones 55 alpha synuclein 54 neurotransmitter dopamine 54 p# gene 54 pancreatic beta 53 myelin 52 BDNF 52 neurodegeneration 52 chemical dopamine 52 dystrophin 52 tumor suppressor genes 52 motor neuron 52 microglia 51 hematopoietic stem cells 51 dopaminergic 51 mutant mice 51 GDNF 51 T lymphocytes 51 myelin sheath 51 cardiomyocytes 51 progenitor cells 51 SIRT1 51 islet cells 50 mitochondrial function 50 tumor suppressor gene 50 bone marrow stem cells 50 glial cells 50 HSCs 50 neural connections 50 neuronal 50 norepinephrine 50 telomere 50 nerve fibers 49 fibroblasts 49 serotonin 49 amyloid plaques 49 acetylcholine 49 pancreatic cells 49 autophagy 49 TGF beta 49 osteoblasts 49 knockout mice 49 axons 49 STAT3 49 reactive oxygen species 49 germ cells 49 neurotransmitter 49 AMPK 49 Adult stem cells 49 nerve regeneration 48 diabetic mice 48 NK cells 48 beta catenin 48 hippocampal 48 lymphocyte 48 neuron 48 Abeta 48 astrocytes 48 tumor cells 48 hematopoietic 48 hepatocytes 48 neurodegenerative disease 48 hair follicles 48 naturally occurring protein 48 lymphocytes 48 retinitis pigmentosa 47 stem cells 47 PI3K 47 pluripotency 47 dopamine receptors 47 hippocampus 47 signaling pathway 47 insulin secretion 47 keratinocytes 47 striatum 47 Akt 47 mouse embryos 47 orexin 47 ES cells 47 NF kB 47 apoptotic 47 neurotransmitters 47 oxidative stress 47 Hedgehog pathway 47 oncogenes 47 visual cortex 47 melanocytes 47 neutrophil 46 glia