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March 1, 1993Proceedings of the National Academy of SciencesOpen Access

Relationships between the responses of triglyceride-rich lipoproteins in blood plasma containing apolipoproteins B-48 and B-100 to a fat-containing meal in normolipidemic humans.

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Why the study?

How does a fat-containing meal affect the concentrations of triglyceride-rich lipoproteins containing apo B-48 and apo B-100 in healthy young men?

Population

Healthy young normolipidemic men

Comparison

An ordinary meal containing one-third of daily… vs Postabsorptive state (baseline)

Design

Other

Follow-up

12 hours

Key result

After ingestion of a fat-containing meal, about 80% of the increase in triglyceride-rich lipoprotein particles occurred in apo B-100-containing VLDL rather than apo B-48-containing chylomicrons.

Authors

BSBarbara O. SchneemanLKL KotiteKTKaren Todd

Discussion

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Overview

Postprandial lipemia after ordinary meals is driven mainly by hepatogenous VLDL; leaves open whether this accumulation contributes to atherogenicity.

Study Design

Type

Observational (n=7)

Multicenter

No

Structured PICO

How does a fat-containing meal affect the concentrations of triglyceride-rich lipoproteins containing apo B-48 and apo B-100 in healthy young men?

P
Population
7 healthy young normolipidemic men evaluated for postprandial lipemia up to 12 hours after consuming a fat-containing meal.
I
Intervention
An ordinary meal containing one-third of daily energy and fat
C
Comparator
Postabsorptive state (baseline)
O
Outcome
Concentration of triglyceride-rich lipoproteins containing apolipoprotein B-48 and B-100 up to 12 hours post-mealsurrogate

Main Result

Effect estimate: r2 = 0.80

p-value: p=< 0.01

Following a fat-containing meal, the predominant accumulation of triglyceride-rich lipoproteins occurs in VLDL rather than chylomicrons, highlighting the potential atherogenicity of postprandial lipoproteins.

Limitations

  • Very small sample size (n=7)
  • Study population restricted to healthy young men
  • Physiological study without clinical cardiovascular endpoints

Cite This Study

Schneeman et al. (1993) conducted an observational in Normolipidemic (n=7). Fat-containing meal vs. Fasting state (baseline) was evaluated on Concentration of triglyceride-rich lipoproteins containing apo B-48 and apo B-100 (r2 = 0.80, p=< 0.01). After ingestion of a fat-containing meal, about 80% of the increase in triglyceride-rich lipoprotein particles occurred in apo B-100-containing VLDL rather than apo B-48-containing chylomicrons.

synapsesocial.com/papers/6a6cc9b631a3df824326cea7https://doi.org/10.1073/pnas.90.5.2069
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Also Consider

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

  1. 1Metabolism of apolipoproteins B-48 and B-100 of triglyceride-rich lipoproteins in normal and lipoprotein lipase-deficient humans.1984 · 175 citations
  2. 2Apolipoprotein B48 metabolism in chylomicrons and very low‐density lipoproteins and its role in triglyceride transport in normo‐ and hypertriglyceridemic human subjects2019 · 44 citations
  3. 3Quantification of Postprandial Triglyceride-Rich Lipoproteins in Healthy Men by Retinyl Ester Labeling and Simultaneous Measurement of Apolipoproteins B-48 and B-1001995 · 144 citations
  4. 4Alterations of VLDL composition during alimentary lipemia1997 · 66 citations
  5. 5Metabolism of triglyceride-rich lipoproteins during alimentary lipemia.1993 · 229 citations