at senescence.info
You can search for any reference by title, author, date, editor, journal and publisher. Searching is case insensitive, and allows for only partial terms (e.g. seq with pickup both RNA-Seq and sequencing) matching. You can also use advanced queries that are detailed here.
Matsunaga et al. (2004) "BDNF is necessary for maintenance of noradrenergic innervations in the aged rat brain." Neurobiol. Aging 25(3):341-348 (PubMed)