Related by context. Frequent words. (Click for all words.) 73 telomeres 66 telomere 56 chromosomes 52 nucleotides 51 telomere length 51 microtubule 49 fibrils 49 DNA strands 48 organelles 48 telomerase 48 microtubules 47 RNA molecules 47 DNA replication 47 RNAs 47 histones 46 mRNAs 45 epithelial cells 45 DNA sequences 45 proteins 45 osteoclasts 44 chromosome 44 molecular pathways 44 axons 44 estrogen receptors 43 BRCA2 43 articular cartilage 43 mRNA 43 protein synthesis 43 ubiquitin 43 elastin 43 oxidative damage 43 alpha synuclein 42 metabolic processes 42 chromosomal 42 mitosis 42 p# [001] 42 messenger RNA 42 autophagy 42 carcinogenesis 42 myelin 42 methylation 42 microglia 41 nerve cells 41 tumor suppressor 41 tumor suppressor gene 41 cilia 41 amino acids 41 proteases 40 DNA methylation 40 fatty acids 40 yeast cells 40 microRNAs 40 miRNAs 40 genetic alterations 40 glial cells 40 tooth enamel 40 endothelium 40 signaling pathway 40 RNA 40 hair follicles 40 bone resorption 39 molecule 39 mitochondria 39 endothelial cells 39 lipids 39 protein 39 acetylcholine 39 axon 39 signaling molecule 39 transcription factor 39 C. elegans 39 progenitor cells 39 fibroblasts 38 osteoblasts 38 nerve fibers 38 androgen receptor 38 mutations 38 mammalian cells 38 lipoprotein 38 neurones 38 TGF beta 38 germ cells 38 SIRT1 38 genes 37 X chromosome 37 enzyme 36 thymus 36 lifespans 36 thyroid function 36 gussets 36 apoptosis 36 Akt 35 mitochondrial 35 cultured cells 35 muscle fibers 35 ES cells 35 gene expression 35 immune responses 35 neurogenesis 35 mtDNA 35 neurons