Methodological advancements in organ-specific ectopic lipid quantitative characterization: Effects of high fat diet on muscle and liver intracellular lipids

Grepper, Dogan; Tabasso, Cassandra; Aguettaz, Axel; Martinotti, Adrien; Ebrahimi, Ammar; Lagarrigue, Sandrine; Amati, Francesca

doi:10.1016/j.molmet.2023.101669

Cited by 3 publications

(1 citation statement)

References 54 publications

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“…No significant differences were observed in the effect of lowering serum lipid levels, perhaps because the intervention period was only 8 weeks and relatively short. Moreover, excessive energy intake also could lead to increased lipid storage in liver and adipose tissue overload, consequently causing ectopic lipid depositions and fatty liver [ 21 ]. The results of H&E staining proved that HFD feeding caused lipid depositions in liver and adipocyte enlargement in subcutaneous fat tissue, whereas p -synephrine supplementation impaired these changes induced by HFD.…”

Section: Discussionmentioning

confidence: 99%

Citrus p-Synephrine Improves Energy Homeostasis by Regulating Amino Acid Metabolism in HFD-Induced Mice

Bai,

Tan,

Tang

et al. 2024

Nutrients

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p-Synephrine is a common alkaloid widely distributed in citrus fruits. However, the effects of p-synephrine on the metabolic profiles of individuals with energy abnormalities are still unclear. In the study, we investigated the effect of p-synephrine on energy homeostasis and metabolic profiles using a high fat diet (HFD)-induced mouse model. We found that p-synephrine inhibited the gain in body weight, liver weight and white adipose tissues weight induced by HFD. p-Synephrine supplementation also reduced levels of serum total cholesterol (TC), triglyceride (TG) and low-density lipoprotein cholesterol (LDL-C) but not to a statistically significant degree. Histological analysis showed that HFD induced excessive lipid accumulation and glycogen loss in the liver and adipocyte enlargement in perirenal fat tissue, while p-synephrine supplementation reversed the changes induced by HFD. Moreover, HFD feeding significantly increased mRNA expression levels of tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β) and reduced the mRNA expression level of interleukin-10 (IL-10) compared to the control group, while p-synephrine supplementation significantly reversed these HFD-induced changes. Liver and serum metabolomic analysis showed that p-synephrine supplementation significantly altered small molecule metabolites in liver and serum in HFD mice and that the changes were closely associated with improvement of energy homeostasis. Notably, amino acid metabolism pathways, both in liver and serum samples, were significantly enriched. Our study suggests that p-synephrine improves energy homeostasis probably by regulating amino acid metabolism in HFD mice, which provides a novel insight into the action mechanism of p-synephrine modulating energy homeostasis.

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Section: Discussionmentioning

confidence: 99%