Cited by 191Lipid metabolism and biosynthesisAdipose Tissue and MetabolismLipid metabolism and disorders

Gender differences in regional fatty acid metabolism before and after meal ingestion.

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Jensen, M D·1995·Journal of Clinical Investigation

Abstract

UNLABELLED: These studies were conducted to determine whether men and women differ with regards to their overnight postabsorptive (basal) and postprandial fatty acid kinetics. Systemic oleate turnover ([9,10(3)H]oleate) was measured before and after the consumption of a mixed meal. Leg and splanchnic free fatty acid (FFA) uptake and release were measured, allowing the calculation of upper-body subcutaneous FFA release. RESULTS: basal oleate flux was virtually identical in men and women (3.0 +/- 3 versus 2.9 +/- 0.4 mumol.kg FFM-1.min-1), however, oleate Ra suppressed more in women than in men following meal ingestion (0.5 +/- 0.1 versus 0.8 +/- 0.1 mumol.kg FFM-1.min-1, P < 0.05). The fractional contribution of basal, regional FFA release to total FFA flux was not significantly different between men and women. In contrast, oleate release by upper-body subcutaneous adipose tissue was significantly greater (30 +/- 5 vs 8 +/- 3 mumol/min, respectively, P < 0.01) in men than in women during the meal nadir of FFA flux, whereas splanchnic oleate release was a greater percentage (39 +/- 7% vs 20 +/- 3%, respectively, P < 0.05) of nadir oleate Ra in women than in men. Thus, normal weight men and women differ significantly in the postprandial regulation of adipose tissue lipolysis in that men's upper-body subcutaneous adipose tissue is more resistant to the antilipolytic effects of meal ingestion. Differential regulation of regional adipose tissue lipolysis could contribute to the gender based differences in body fat distribution.

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  • The relative contribution of leg adipose tissue lipolysis to systemic FFA is significantly greater in women than in men.

    “The relative contribution of leg adipose tissue lipolysis to systemic FFA is significantly greater in women than men (67, 70)”

    From Sex differences in the metabolism of glucose and fatty acids by adipose tissue and skeletal muscle in humans (2025) · cites this paper as [67]

    The Discussion says the fractional contribution of leg fat to systemic oleate flux was comparable in men and women, with only a tendency toward a greater contribution in women. The regional oleate release passage reports 14±2% in men versus 19±2% in women under basal conditions (0.05 < P < 0.1); the post-meal comparison was also not statistically significant. Thus the paper does not support the claimed significant difference. (LLM, conf=0.90)

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  • Upon consumption of a mixed meal, the nadir of plasma FFA concentrations is very similar in young normal weight males and females, although the absolute release rate of FFA is slightly greater in males.

    “Upon consumption of a mixed meal, the nadir of plasma FFA concentrations is very similar in young (~27 y), normal weight males and females, although the absolute release rate of FFA is slightly greater in males (67).”

    From Sex differences in the metabolism of glucose and fatty acids by adipose tissue and skeletal muscle in humans (2025) · cites this paper as [67]

    The subject-characteristics table lists lean men and women with mean ages of 27, and the Results report a higher post-meal nadir oleate appearance rate in men (49 ± 6 versus 24 ± 3 µmol/min). But the Discussion describes reduced plasma FFA concentrations in women, rather than establishing that the sexes had very similar concentration nadirs; the reported appearance-rate difference is also more substantial than “slightly greater.” (LLM, conf=0.88)

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  • In males, FFA release from upper body subcutaneous adipose tissue accounts for a greater proportion of total FFA released than in females, and leg adipose tissue accounts for a greater proportion of total FFA release in females than in males.

    “In males, FFA release from the upper body subcutaneous adipose tissue accounts for a greater proportion of total FFA released than in females, and leg adipose tissue account for a greater proportion of total FFA release than in males (Figure 6) (67).”

    From Sex differences in the metabolism of glucose and fatty acids by adipose tissue and skeletal muscle in humans (2025) · cites this paper as [67]

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  • The authors pooled data from femoral artery, femoral vein, and hepatic vein catheterization studies to assess variability and sex differences in regional FFA release.

    “We pooled data from femoral artery, femoral vein and hepatic vein catheterization studies that included measures of blood flow, body composition and isotopic tracer techniques to assess the variability and sex-differences regional FFA release (33, 65–70).”
  • For both women and men, FFA release rates per kg are greater from upper body than from lower body subcutaneous adipose tissue.

    “For both women (33) and men (67), FFA release rates per kg are greater from upper body than from lower body subcutaneous adipose tissue (Figure 4).”

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Authors
Jensen, M. D.
Affiliations
Mayo Clinic (US)
Corresponding author
Jensen, M D
Venue
Journal of Clinical Investigation
Published
1995-11-01
Volume
96
Issue
5
Pages
2297-2303
ISSN
0021-9738 (ISSN-L)
OpenAlex
W2127037606
Cited by
191
References
35
Citations by year
2026: 3 · 2025: 6 · 2024: 8 · 2023: 3 · 2022: 15 · 2021: 3 · 2020: 11 · 2019: 9 · 2018: 3 · 2017: 5 · 2016: 10 · 2015: 6 · 2014: 10 · 2013: 10 · 2012: 11
FWCI
1.85
Type
journal article
Language
en
Open access
Locations
  • Journal of Clinical Investigation (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Mayo Clinic
  • Mayo Foundation for Medical Education and Research
  • National Institutes of Health (RR-00585)
  • National Institute of Diabetes and Digestive and Kidney Diseases (DK 45343, R01DK045343)
  • National Center for Research Resources (RR-00585, M01RR000585)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Lipid metabolism and biosynthesis
  • Health Sciences › Medicine › Physiology › Adipose Tissue and Metabolism
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Lipid metabolism and disorders
Keywords
gender differences, fatty acid metabolism, postprandial lipemia, adipose tissue lipolysis, subcutaneous adipose tissue, meal ingestion, body fat distribution
MeSH terms
Adipose Tissue, Adult, Fatty Acids, Female, Food, Humans, Male, Organ Specificity, Sex Characteristics

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