Related by context. Frequent words. (Click for all words.) 87 nerve cells 86 neuron 79 neuronal 78 synapses 73 neural 72 synapse 71 motor neurons 70 nerve fibers 69 astrocytes 69 synaptic 69 axons 69 hippocampus 68 cortex 68 proteins 67 dopamine 66 receptors 66 cortical 65 inhibitory 64 neurotransmitter 64 glutamate 64 mitochondria 64 brain 63 neurotransmitters 63 neural stem cells 63 hypothalamus 62 mice 62 molecules 61 cerebellum 61 receptor 61 genes 61 cells 60 plasticity 60 molecule 60 cerebral cortex 60 myelin 60 transcription factors 60 intracellular 60 ion channels 60 signaling pathways 60 tumor cells 59 serotonin 59 immune cells 59 amygdala 59 signaling pathway 59 progenitor cells 59 fibroblasts 58 gene 58 skeletal muscle 58 blood vessels 58 macrophages 58 microRNAs 57 cilia 57 gene expression 57 enzyme 57 nerve endings 57 mRNA 56 protein 56 lymphocytes 56 miRNAs 56 leptin 56 peptides 56 prefrontal cortex 56 nuclei 56 cell membrane 56 mammalian 56 vesicles 56 epithelial cells 55 enzymes 55 Drosophila 55 molecular mechanisms 55 phosphorylation 55 electrical impulses 55 ghrelin 55 dendritic cells 55 hair follicles 55 muscle fibers 55 phenotype 55 zebrafish 55 norepinephrine 54 vivo 54 endothelial cells 54 amyloid beta 54 cytokine 54 oxidative stress 54 phenotypes 54 stimuli 53 cytokines 53 lipids 53 molecular 53 miR 53 amino acid 53 follicles 53 metabolic 53 cognitive functions 53 photons 53 circuitry 53 cognition 53 retina 53 mitochondrial 53 metabolism 52 amyloid