Related by context. Frequent words. (Click for all words.) 82 Embryonic stem cells 72 stem cells 66 pluripotent stem cells 65 embryonic stem cells 61 induced pluripotent stem cells 60 adult stem cells 57 Stem cell 57 embryonic cells 56 iPS cells 55 bone marrow stem cells 54 progenitor cells 53 neural stem cells 53 ES cells 53 pluripotent 52 Embryos 51 stem cell 51 stem cells derived 50 mesenchymal stem cells 49 stem cell therapy 49 germ cells 49 islet cells 49 cells 49 cloned embryos 49 insulin producing 47 fibroblasts 47 stem cell therapies 46 embryos 46 immune cells 46 Cells 45 gene therapy 45 human embryos 45 embryo 44 diseased cells 44 tissues 44 Stem Cells 44 oocytes 44 stem cell transplantation 44 malignant tumors 44 stem cell transplants 43 nerve cells 43 stem cell biology 43 human embryonic stem 43 embryonic 43 Carbon nanotubes 43 dendritic cells 42 fertilized egg 42 ovarian tissue 42 therapeutic cloning 42 tissue 42 umbilical cord blood 42 hormone estrogen 42 Folic acid 42 astrocytes 41 regenerative medicine 41 somatic cell nuclear 41 adipose tissue 41 Enzymes 41 fatty acids 41 transplantation 40 proteins 40 Carbohydrates 40 glial cells 40 pancreatic 40 destroying embryos 40 Platelets 40 NK cells 40 stem cell research 40 hair follicles 40 grafts 40 motor neurons 40 Scientists 40 Tumors 40 Antibodies 40 bone marrow transplantation 40 thymus 39 retrovirus 39 genetic abnormalities 39 Cancers 39 enzymes 39 Stem Cell 39 Statins 39 tumors 39 lymphocytes 39 antibodies 39 Stem Cell Research 39 autologous 39 skeletal muscle 39 MSCs 39 Eating disorders 39 Clinical trials 39 angiogenic 39 3 fatty acids 39 adult stem cell 39 melanocytes 39 epithelial cells 39 Biological Studies 39 fertilized eggs 39 bone marrow 39 parthenogenesis 39 neurodegenerative disease 39 degenerative diseases