By upregulating the levels or functional activity of IRS2, insulin is used more efficiently by {HEAD ~ the body} to control {TAIL ~ nutrient levels} 
to control
By upregulating the levels or functional activity of IRS2 , insulin is used more efficiently by { HEAD ~ the body } to control { TAIL ~ nutrient levels }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL