Abstract:
:The effects of the artificial triglyceride-phospholipid emulsion (10% intralipid) on HDL subfraction were studied in vivo. After a 14-h fast, subjects received intralipid via a 4-h infusion. Serum lipoproteins were analyzed before and at 4 and 6 h after the start of the infusion. At 4-h the following acute changes by infusion were observed. Triglyceride, phospholipid, free cholesterol, and esterified cholesterol in chylomicrons and VLDL increased. HDL2 as well as triglyceride, phospholipid, free cholesterol and protein within the HDL2 increased, while HDL3 decreased. An increase in HDL3 triglyceride was observed. The masses of apo A-I and A-II in the HDL2 density interval rose while these parameters fell in HDL3. There were decreases of apo C-II and C-III in the HDL subfractions and elevations in chylomicrons and VLDL. The particle size of the HDL subfractions increased. However, most of these acute changes at 4 h tended to disappear by 6 h. These results suggest that there is exchange of lipids and reversible transfer of apo C-II and C-III between HDL subfractions and intralipid, and conversion of HDL3 to HDL2 followed by the reverse conversion of HDL2 to HDL3 as the synthetic emulsion is cleared from the plasma.
journal_name
Atherosclerosisjournal_title
Atherosclerosisauthors
Sakuma N,Lin C,Matsumoto Y,Ikeuchi R,Ichikawa T,Hirata H,Noguchi Y,Fujinami Tdoi
10.1016/0021-9150(88)90195-5subject
Has Abstractpub_date
1988-11-01 00:00:00pages
91-8issue
1-2eissn
0021-9150issn
1879-1484pii
0021-9150(88)90195-5journal_volume
74pub_type
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