Apo E-containing lipoproteins in low or high density lipoprotein deficiency.

Apo E-containing lipoproteins in low or high density lipoprotein deficiency.

Apolipoprotein (apo) E-containing subfractions of very low density lipoprotein (VLDL), intermediate density lipoprotein (IDL), and high density lipoprotein (HDL) have been described in normolipidemic and hyperlipidemic subjects. These lipoproteins exist, however, in the presence of large amounts of apo A-I- and apo B-containing lipoproteins so that it has been difficult to assess the independen...

Abnormal low density lipoprotein metabolism in apolipoprotein E deficiency.

Apolipoprotein(apo) E deficiency is an inherited disease characterized by type III hyperlipoproteinemia and less than 1% normal plasma apoE concentration. The role of apoE in LDL metabolism was investigated by quantitating the metabolism of radiolabeled normal and apoE-deficient LDL in both normal and apoE-deficient subjects. ApoE deficiency resulted in an accumulation of plasma IDL, and a decr...

Reversible high affinity uptake of apo E-free high density lipoproteins in cultured pig hepatocytes.

We examined the high affinity binding, uptake, and degradation of apo E-free 125I-high density lipoprotein (HDL) in cultured pig hepatocytes. At steady state, the cells degraded 9.4% of cell-associated 125I-HDL/hour, compared with 41.7%/hour for 125I-LDL. Pulse-chase experiments at 4 degrees C revealed that high affinity 125I-HDL binding was reversible. Similar experiments at 37 degrees C revea...

High density Lipoprotein; What to Measure: Quality or Quantity?

cholesterol/high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, non–high-density lipoprotein cholesterol, or low-density lipoprotein particle concentration and guideline categories of low-density lipoprotein cholesterol or non–high-density lipoprotein cholesterol

International clinical practice guidelines on dyslipidemia emphasize the importance of matching the use and intensity of statin therapy with the absolute risk of atherosclerotic cardiovascular disease (CVD). Indeed, independent of the baseline level of dyslipidemia, patients who have entered the intervention arms of randomized clinical trials of statin therapy with similar absolute risks of CVD...