TY - JOUR A2 - Baudry, Michel AU - Dzitoyeva, Svetlana AU - Imbesi, Marta AU - Ng, Louisa W. AU - Manev,哈里PY - 2009 DA - 2009/12/13 TI - 5-Lipoxygenase DNA甲基化和信使rna含量年轻和年老老鼠的大脑和心脏SP - 209596六世- 2009 AB - 5-Lipoxygenase的表达(5-LOX)是影响衰老和受表观遗传机制包括DNA甲基化。我们使用甲基化敏感限制性内切酶(AciI, BstUI, HpaII和HinP1I)来评估年轻(2个月)和年老(22个月)小鼠大脑和心脏组织样本中的5-LOX DNA甲基化。我们还测定了5-LOX和DNA甲基转移酶DNMT1和DNMT3a的mRNA含量。在年轻小鼠中,心脏中的5-LOX mRNA含量明显高于大脑;5-LOX DNA甲基化较低,除了在AciI检测中,它在心脏较高。衰老降低了心脏中的5-LOX mRNA含量,增加了大脑中的5-LOX mRNA含量。老化也增加了5-LOX DNA甲基化,这种影响是位点(即酶)和组织特异性的。总体而言,脑区DNMT1和DNMT3a mRNA含量低于心脏;衰老仅对DNMT3a mRNA含量有影响,老龄小鼠心脏DNMT3a mRNA含量下降。 These results indicate a complex tissue-specific and aging-dependent interplay between the DNA methylation system and 5-LOX mRNA content. Interpretation of this data must take into account that the tissue samples contained a mixture of various cell types. SN - 2090-5904 UR - https://doi.org/10.1155/2009/209596 DO - 10.1155/2009/209596 JF - Neural Plasticity PB - Hindawi Publishing Corporation KW - ER -