Abstract Title:

Caffeine Promotes Conversion of Palmitic Acid to Palmitoleic Acid by Inducing Expression ofinandin Mice.

Abstract Source:

Front Pharmacol. 2018 ;9:321. Epub 2018 Apr 6. PMID: 29681853

Abstract Author(s):

Xiaocui Du, Qin Huang, Yun Guan, Ming Lv, Xiaofang He, Chongye Fang, Xuanjun Wang, Jun Sheng

Article Affiliation:

Xiaocui Du


The synthesis and metabolism of fatty acids in an organism is related to many biological processes and is involved in several diseases. The effects of caffeine on fatty acid synthesis and fat storage inand mice were studied. After 6 h of food deprivation, adultwere treated with 0.1 mg/mL caffeine for 24 h. Quantitative reverse-transcription polymerase chain reaction showed that, among all the genes involved in fat accumulation, the mRNA expression ofin caffeine-treatedwas significantly higher than that of controls, whereasanddisplayed no significant difference. Gas chromatography-mass spectrometry was used to verify the fatty acid composition of. Results showed that the ratio of palmitoleic acid (16:1) to that of palmitic acid (16:0) was higher in the caffeine-treated group. Several mutant strains, including those involved in the insulin-like growth factor-1, dopamine, and serotonin pathways, and nuclear hormone receptors (), were used to assess their necessity to the effects of caffeine. We found thatwas essential for the effects of caffeine, which was independent ofand-80. Caffeine may increaseexpression by acting on. In high fat diet (HFD), but not in normal diet (ND) mice, caffeine induced expression ofin both subcutaneous and epididymal white adipose tissue, which was consistent with the palmitoleic/palmitic ratio results by gas chromatograph analysis. In mature adipocytes, caffeine treatment induced both mRNA and protein expression ofandα. Overall, our results provided a possible mechanism on how caffeine modulates metabolism homeostasis.

Study Type : Animal Study

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