This review assesses current knowledge of the clinical, genetic, and biochemical features of familial high density lipoprotein (HDL) deficiency syndromes. The focus is on HDL deficiency states occurring In the absence of severe hypertrlgiycerldemia or lecithin/cholesterol acyltransferase deficiency. Specific entities falling within this category Include Tangier disease, familial HDL deficiency ...

We tested the hypothesis that apolipoproteins, the protein constituents of plasma lipoproteins, are secreted into bile. We examined human gallbladder bile obtained at surgery (N = 54) from subjects with (N = 44) and without (N = 10) gallstones and hepatic bile collected by T-tube drainage (N = 9) after cholecystectomy. Using specific radioimmunoassays for human apolipoproteins A-I and A-II, the...

We describe an isoelectric-focusing method for rapidly separating and quantifying apolipoprotein (apo) C-II and C-III subspecies of triglyceride-rich lipoproteins. Concentrated very-low-density lipoproteins (VLDL) or delipidated apo VLDL are focused on dry acrylamide plates, after their rehydration with ampholytes and urea. Apo C-II and apo C-III in VLDL are resolved into four major bands--C-II...

A mother and her son who have lipoprotein phenotype I are described. They differed from subjects with lipoprotein lipase deficiency in that lipoprotein lipase was present in adipose tissue respectively at 30- and 2-fold the levels seen in normal subjects, and from subjects with apoprotein C-II deficiency in that apoprotein C-II was present in their plasma. They appeared to have an inhibitor to ...

BACKGROUND Overexpression of human apolipoprotein (apo) A-II in transgenic mice induces high-density lipoprotein (HDL) deficiency, and increased atherosclerosis susceptibility only when fed an atherogenic diet. This may, in part, be caused by impairment in reverse cholesterol transport (RCT). METHODS AND RESULTS [3H]cholesterol-labeled macrophages were injected intraperitoneally into mice mai...