Different Serum Free Fatty Acid Profiles in NAFLD Subjects and Healthy Controls after Oral Fat Load
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Background: Free fatty acid (FFA) metabolism can impact on metabolic conditions, such as obesity and nonalcoholic fatty liver disease (NAFLD). This work studied the increase in total FFA shown in NAFLD subjects to possibly characterize which fatty acids significantly accounted for the whole increase. Methods: 21 patients with NAFLD were selected according to specified criteria. The control group consisted of nine healthy subjects. All subjects underwent an oral standard fat load. Triglycerides; cholesterol; FFA; glucose and insulin were measured every 2 h with the determination of fatty acid composition of FFA. Results: higher serum FFA levels in NAFLD subjects are mainly due to levels of oleic, palmitic and linoleic acids at different times. Significant increases were shown for docosahexaenoic acid, linolenic acid, eicosatrienoic acid, and arachidonic acid, although this was just on one occasion. In the postprandial phase, homeostatic model assessment HOMA index positively correlated with the ω3/ω6 ratio in NAFLD patients. Conclusions: the higher serum levels of FFA in NAFLD subjects are mainly due to levels of oleic and palmitic acids which are the most abundant circulating free fatty acids. This is almost exactly corresponded with significant increases in linoleic acid. An imbalance in the n-3/n-6 fatty acids ratio could modulate postprandial responses with more pronounced effects in insulin-resistant subjects, such as NAFLD patients.
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In the postprandial period, higher levels of circulating FFAs in patients with MASLD are largely attributable to oleic and palmitic acids, as well as linoleic acid.
“In the postprandial period, higher levels of circulating FFAs in patients with MASLD are largely attributable to oleic and palmitic acids, as well as linoleic acid [146].”
From The HepG2 Cell Line as a Model for Studying Metabolic Dysfunction-Associated Steatotic Liver Disease (2026) · cites this paper as [146]
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The HepG2 Cell Line as a Model for Studying Metabolic Dysfunction-Associated Steatotic Liver Disease
Kotlyarova, A., Iskrina, A., & Kotlyarov, S. (2026) · International journal of molecular sciences · doi:10.3390/ijms27083399 · Cited by 5 · see citing works
- Authors
- Gambino, R., Bugianesi, E., Rosso, C., Mezzabotta, L., Pinach, S., Alemanno, N., Saba, F., & Cassader, M.
- Affiliations
- University of Turin (IT)
- Corresponding author
- Gambino, Roberto
- Venue
- International Journal of Molecular Sciences
- Publisher
- MDPI AG
- Published
- 2016-03-31
- Volume
- 17
- Issue
- 4
- Pages
- 479
- ISSN
- 1422-0067 (ISSN-L)
- PMC
- PMC4848935
- OpenAlex
- W2316493884
- Cited by
- 101
- References
- 5
- Citations by year
- 2026: 5 · 2025: 7 · 2024: 14 · 2023: 11 · 2022: 6 · 2021: 12 · 2020: 13 · 2019: 12 · 2018: 7 · 2017: 12 · 2016: 2
- FWCI
- 10.32
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- International Journal of Molecular Sciences (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- Institutional Research Information System University of Turin (University of Turin) (submittedVersion, other-oa)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Funders
- Funded by FP7/2007-2013 under grant agreement n°HEALTH-F2-2009-241762 for the project FLIP and by PRIN 2009ARYX4T.
- Topics
- Health Sciences › Medicine › Epidemiology › Liver Disease Diagnosis and Treatment
- Health Sciences › Nursing › Nutrition and Dietetics › Fatty Acid Research and Health
- Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diet, Metabolism, and Disease
- Keywords
- non-alcoholic fatty liver disease, free fatty acids, oral fat load, postprandial lipemia, fatty acid composition, oleic acid, palmitic acid, linoleic acid, n-6/n-3 ratio, HOMA index, insulin resistance, docosahexaenoic acid, arachidonic acid
- MeSH terms
- Adult, Blood Glucose, Cholesterol, Chromatography, High Pressure Liquid, Colorimetry, Fatty Acids, Nonesterified, Female, Humans, Insulin, Insulin Resistance, Male, Middle Aged, Triglycerides, Fatty Acids, Omega-3, Case-Control Studies, Fatty Acids, Omega-6, Diet, High-Fat, Non-alcoholic Fatty Liver Disease
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