Related by context. Frequent words. (Click for all words.) 60 flatworm 58 regrows 57 nematode worms 57 ribozyme 57 plasmodium 56 Caenorhabditis elegans 56 flatworms 55 neural cells 55 Wnt signaling 55 Wnt signaling pathway 55 transplanted stem cells 55 retinal pigment epithelium 55 genetically altered mice 55 mouse embryo 55 teratomas 55 genetic alteration 55 fruitfly 55 transgenic mouse 54 photoreceptor 54 defensins 54 developmental biologist 54 Helicobacter 54 protein fragment 54 poxvirus 54 methylation patterns 53 genetically engineered mouse 53 nanobacteria 53 basal cells 53 mesenchymal cells 53 retinal cells 53 melanoma tumors 53 ADAM# 53 wormlike 53 receptor molecule 53 apoE 53 optogenetics 53 RNA molecule 53 fibroblast cells 53 pancreatic cells 53 pluripotent cells 53 granuloma 53 synapse formation 53 regrowing 53 snail shell 53 Hox genes 52 mesenchymal 52 overexpress 52 protein misfolding 52 neural tissue 52 astrocyte 52 amyloid fibrils 52 microglial cells 52 Synthetic biology 52 nerve regeneration 52 braincase 52 calmodulin 52 mice lacking 52 ribozymes 52 parathyroid glands 52 morphologically 52 collagenase 52 zebrafish 52 ADDLs 52 mutant proteins 52 reproduce asexually 52 cells hESCs 52 HHMI investigator 52 C. elegans 52 Scientifically speaking 52 scorpion venom 52 ganglion cells 51 intestinal tissue 51 stem cell differentiation 51 PPAR delta 51 Notch signaling 51 misshaped 51 PALCA 51 Xenopus 51 myocytes 51 MicroRNA 51 proinsulin 51 TB bacterium 51 ganglion 51 epithelia 51 mouse embryos 51 tumor suppressor gene 51 Scientists theorize 51 T. gondii 51 olfactory receptors 51 Wnt pathway 51 morphogenesis 51 calcineurin 51 damaged spinal cords 51 nanosensor 51 glycan 51 multicellular organisms 51 porphyrins 51 micro RNAs 51 pituitary tumors 51 chromatin structure 51 hematopoietic cells