Related by context. Frequent words. (Click for all words.) 44 amyloid plaques 43 plaques 42 beta amyloid 40 diseased cells 40 mitochondria 40 mice 40 astrocytes 38 nerve cells 38 blood vessels 38 brains 38 spinal fluid 37 plaque buildup 37 transgenic mice 37 livers 36 muscle tissue 36 brain 36 neurons 36 motor neurons 35 spinal cords 35 liver 35 artery walls 35 fatty tissue 34 hair follicles 34 synapse 34 retinas 34 cerebrospinal fluid 34 plaque 34 intestines 34 rats 34 nerve endings 32 ovaries 32 neurogenesis 32 photoreceptors 32 synapses 32 retina 32 testes 32 neuronal 31 arteries 31 metabolic 31 circulatory system 31 follicles 30 Neurons 30 neurological 30 neuron 30 internal organs 30 muscle 30 kidneys 30 dopamine 30 frontal lobes 30 skulls 29 hippocampus 29 sweat glands 29 cerebellum 29 striatum 29 Plaques 29 gills 29 serotonin 28 thalamus 28 lungs 28 neuroscientists 28 Brain scans 28 overactive 28 schizophrenics 28 metabolism 28 statuettes 28 neural 28 organs 28 cerebral cortex 28 lobes 27 synaptic 27 cranium 27 markers 27 macula 27 frontal lobe 27 trophies 27 cortex 27 optic nerve 27 reproductive organs 27 physiological 27 insula 27 nerve fibers 27 stress hormones 26 circuitry 26 carotid arteries 26 penises 26 physiology 26 plasticity 25 ventricles 25 eye sockets 25 beaks 25 monkeys 25 hypothalamus 25 innards 25 spines 25 visual cortex 25 muscles 25 cortisol levels 24 cortical 24 egos 24 brainstem 24 hormones