In {TAIL ~ yet another embodiment}, the invention provides transgenic animals which harbor the nucleic acid sequences provided herein and which express {HEAD ~ a nucleotide sequence} of interest in an age related and liver specific manner 
In { TAIL ~ yet another embodiment } , the invention provides transgenic animals which harbor the nucleic acid sequences provided herein and which express { HEAD ~ a nucleotide sequence } of interest in an age related and liver specific manner
OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH