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February 1, 1987Journal of Lipid ResearchOpen Access

Kinetics of chylomicron remnant clearance in normal and in hyperlipoproteinemic subjects.

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Key result

Chylomicron remnant clearance half-times were prolonged in endogenous hypertriglyceridemia (50.7 min) and Type 3 hyperlipoproteinemia (611.9 min) compared to normal subjects (14.1 min).

Why the study?

Does chylomicron remnant clearance differ between normal subjects, those with endogenous hypertriglyceridemia, and those with apoE E2/2 phenotype?

Population

24 adult male subjects divided into three groups: normal plasma triglyceride levels, endogenous…

Comparison

Oral administration of vitamin A and Lipomul vs Comparison across the three groups

Design

Cohort

Follow-up

10-12 hours

Authors

JCJ A CortnerPCPaul M. CoatesNLNgoc‐Anh Le

Discussion

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Overview

Impaired remnant clearance may elevate cardiovascular risk in hypertriglyceridemia; leaves open whether enhancing clearance improves outcomes.

Study Design

Type

Observational (n=24)

Structured PICO

Does chylomicron remnant clearance differ between normal subjects, those with endogenous hypertriglyceridemia, and those with apoE E2/2 phenotype?

P
Population
24 adult male subjects with normal plasma triglycerides, endogenous hypertriglyceridemia, or apoE phenotype E2/2, followed for 10-12 hours.
E
Exposure
Oral administration of vitamin A and Lipomul
C
Comparator
Comparison across the three groups (normal vs hypertriglyceridemia vs apoE E2/2)
O
Outcome
Half-times for retinyl palmitate clearance from the chylomicron remnant fraction (T1/2 REMNANT) over 10-12 hourssurrogate

Chylomicron remnant clearance is delayed in endogenous hypertriglyceridemia and severely impaired in subjects with apoE E2/2 phenotype, likely due to VLDL overproduction and structural apoE abnormalities, respectively.

Cite This Study

Cortner et al. (1987) conducted an observational in Hyperlipoproteinemia (n=24). Endogenous hypertriglyceridemia or apoE phenotype E2/2 vs. Normal plasma triglyceride levels was evaluated on Half-times for retinyl palmitate clearance from the chylomicron remnant fraction (T1/2 REMNANT). Chylomicron remnant clearance half-times were prolonged in endogenous hypertriglyceridemia (50.7 min) and Type 3 hyperlipoproteinemia (611.9 min) compared to normal subjects (14.1 min).

synapsesocial.com/papers/6a9a67e76f68a8f8fa45c146https://doi.org/10.1016/s0022-2275(20)38721-6
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Kinetics of triglyceride turnover of very low density lipoproteins of human plasma.1965 · 231 citations
  2. 2Studies of familial type III hyperlipoproteinemia using as a genetic marker the apoE phenotype E2/21982 · 177 citations
  3. 3Postheparin Plasma Lipoprotein Lipase and Hepatic Lipase in Diabetes Mellitus: Relationship to Plasma Triglyceride Metabolism1977 · 193 citations
  4. 4Lipoprotein binding to canine hepatic membranes. Metabolically distinct apo-E and apo-B,E receptors.1981 · 386 citations
  5. 5Proposed nomenclature of apoE isoproteins, apoE genotypes, and phenotypes1982 · 438 citations