Luque-Sierra A, Alvarez-Amor L, Kleemann R, Martín F, Varela LM. Extra-Virgin Olive Oil with Natural Phenolic Content Exerts an Anti-Inflammatory Effect in Adipose Tissue and Attenuates the Severity of Atherosclerotic Lesions in Ldlr-/-.Leiden Mice.
Mol Nutr Food Res 2018;
62:e1800295. [PMID:
29763526 DOI:
10.1002/mnfr.201800295]
[Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2018] [Revised: 04/21/2018] [Indexed: 12/14/2022]
Abstract
SCOPE
The present study investigates the effect of olive oils with different phenolic content in high-fat diets (HFDs) on hypertrophy and inflammation in adipose tissue and associated atherosclerosis, in the context of obesity.
METHODS AND RESULTS
Ldlr-/-.Leiden mice were fed three different HFDs for 32 weeks and were compared with mice fed the standard low-fat diet (LFD). The different fats provided in the HFDs were lard (HFD-L), extra-virgin olive oil (EVOO; 79 mg kg-1 of phenolic compounds, HFD-EVOO), or EVOO rich in phenolic compounds (OL, 444 mg kg-1 of phenolic compounds, HFD-OL). All HFD-fed mice became obese, but only HFD-L-induced adipocyte hypertrophy. HFD-EVOO mice exhibited the greatest levels of Adiponectin in adipose tissue and presented atherosclerotic lesions similar to the LFD group, with a very low count of monocyte/macrophage compared with HFD-L and HFD-OL mice. Enrichment of the phenolic content of olive oil reduced the secretion of nitrites/nitrates in the aorta, but atherosclerosis was not attenuated in HFD-OL mice compared to other HFD mice.
CONCLUSION
Consumption of olive oil with a natural content of phenolic compounds attenuates adipose tissue hypertrophy and inflammation and exerts antiatherosclerotic effects in mice. A higher phenolic content of olive oil did not provide further benefits in the prevention of atherosclerosis.
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