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http://www.ncbi.nlm.nih.gov/pubmed/22234893& E4 l) X" i% L, g5 e1 ~( W
Low values of 5-hydroxymethylcytosine (5hmC), the "sixth base," are associated with anaplasia in human brain tumors
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) B( f3 v% ~. l% {http://www.ncbi.nlm.nih.gov/pubmed/222726260 R( @% v6 z6 O/ z# ^4 C* |
The role of 5-hydroxymethylcytosine in aging and Alzheimer's disease: current status and prospects for future studies.
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  R* P  n. ~- V! c* H% yhttp://www.ncbi.nlm.nih.gov/pubmed/22272625& s8 @- a: \5 F2 c
Age-related increase in levels of 5-hydroxymethylcytosine in mouse hippocampus is prevented by caloric restriction.