Related by context. Frequent words. (Click for all words.) 58 lysosomes 58 potassium ions 57 endosomes 56 neurotransmitters 56 sodium ions 56 chemical messengers 55 calcium ions 55 AMPA receptors 54 hormone insulin 54 Nerve cells 54 intracellular 54 mutant proteins 54 vesicle 54 chloride ions 54 dopamine chemical 54 By Marie Boran 54 cell cytoplasm 53 peritoneal cavity 53 neurotransmitter acetylcholine 53 cytosol 53 neurochemicals 53 lysosome 53 bile acids 53 peripheral tissues 53 exosomes 52 neurones 52 endocytosis 52 neurotransmitter glutamate 52 neural cells 52 nerve impulses 52 presynaptic 51 vesicles 51 nerve cells 51 organelles 51 signaling molecules 51 extracellular 51 insulin hormone 51 By HARVEY SIMPSON 51 hormone cortisol 51 glutamate 51 lithium ions 51 neurotransmitter 51 molecules 51 sensory nerves 50 metabolise 50 alveoli 50 lymph vessels 50 exocytosis 50 acetylcholine 50 Aβ 50 biological molecules 50 porphyrins 50 adenosine triphosphate 50 neurons 50 dendritic spines 50 endothelial progenitor cells 49 misfolded 49 neurotransmission 49 neurotransmitter dopamine 49 immune cells 49 Paul Behan Paisley 49 melittin 49 RNA molecules 49 aerosol particles 49 plasma membrane 49 bile acid 49 organelle 49 NADH 49 viral RNA 49 intercellular 49 Treg cells 49 deplete oxygen 49 incoming faxes 49 proteins 49 glycans 49 amyloid protein 49 stromal cells 49 microcapsules 49 electrons 49 intracellular calcium 48 fluorescent molecules 48 Langerhans cells 48 epithelial cells 48 chemotaxis 48 lymphatic vessels 48 auditory nerve 48 fibrils 48 By Riva Froymovich 48 amyloid beta protein 48 antioxidant enzymes 48 vacuoles 48 ACE2 48 leucine 48 encode proteins 48 EphA2 48 cytosolic 48 micelles 48 ganglion cells 48 endoplasmic reticulum 48 noradrenaline 48 adenosine triphosphate ATP