Abstract：
:Hypertriglyceridemia commonly accompanies clinical sepsis and may be caused by increased hepatic production or decreased clearance of triglyceride from the bloodstream. In contrast, enhanced lipid clearing capacity is usually seen after uncomplicated trauma. The purpose of the study was to determine the role of lipoprotein lipase (LPL) in effecting the above changes. Enzyme activity was assayed in skeletal muscle and adipose tissue biopsy samples from 11 normal subjects and from 17 injured and 11 infected surgical patients. Normal subjects after 4 days of 5% dextrose infusion (D5) showed a significant decrease in adipose tissue LPL activity but no change in skeletal muscle activity. Trauma patients after several days of D5 had higher activity in adipose tissue and higher plasma insulin levels than diet-matched control subjects but showed no change in skeletal muscle activity. Infected patients with high plasma triglyceride levels had significantly decreased LPL activity in both tissues. A linear relationship was found between insulin concentration and adipose tissue LPL activity in normal subjects. We conclude that: (1) low tissue LPL activity in sepsis may result in diminished lipid clearance and contribute to hypertriglyceridemia, (2) after trauma, changes in tissue LPL activity as well as other factors such as altered hemodynamics play a role in determining in vivo lipid clearance, and (3) adipose tissue LPL activity is related to the plasma insulin concentration in normal subjects.
journal_name
Surgeryjournal_title
Surgeryauthors
Robin AP,Askanazi J,Greenwood MR,Carpentier YA,Gump FE,Kinney JMsubject
Has Abstractpub_date
1981-08-01 00:00:00pages
401-8issue
2eissn
0039-6060issn
1532-7361journal_volume
90pub_type
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