Which of the following will be elevated in the bloodstream about 4 hours after a fat-rich meal?
The clearance of chylomicrons from the blood is rapid, the half-time of disappearance being under 1 h in humans. The residual triacylglycerol, plus triacylglycerol newly synthesized in the liver are secreted in very low-density lipoprotein as a source of fuel for peripheral tissues. Ketone bodies and non-esterified fatty acids are elevated in fasting, not after a meal. Ref: Botham K.M., Mayes P.A. (2011). Chapter 25. Lipid Transpo & Storage. In D.A. Bender, K.M. Botham, P.A. Weil, P.J. Kennelly, R.K. Murray, V.W. Rodwell (Eds), Harper's Illustrated Biochemistry, 29e.
Chylomicrons
Ketone bodies
VLDL
LDL