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RISS 인기검색어
- 검색키워드
- 저자 : Hazem Khamaisi (검색결과 1 건)
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Roee Gutman,Maayan Rauch,Annat Neuman,Hazem Khamaisi,Adi Jonas-Levi,Yelena Konovalova,Giora Rytwo 한국식품영양과학회 2020 Journal of medicinal food Vol.23 No.3
Obesity reduces the quality of life and life expectancy, whereas nonoperative interventions have shown poor results so far. Statins effectively combat hypercholesterolemia but are not well tolerated at high doses, raising the need for coprescription with cholesterol sorbents and/or absorption inhibitors. Montmorillonite (MMT) clay was found to attenuate hypercholesterolemia and obesity by reducing cholesterol and fat absorption. However, acicular clay-like sepiolite may offer better results due to its more substantial adsorption of nonpolar molecules. We herein aimed at (1) assessing in vitro the capacity of sepiolite to adsorb edible oil and cholesterol compared with that of MMT and (2) assessing in vivo the effect of continuous feeding on a high-fat high-cholesterol diet (HFD) (53.6% w/w fat and 0.2% cholesterol) supplemented with 5% (w/w) edible sepiolite, on diet-induced obesity rate, hypercholesterolemia, and hyperlipidemia. Fourier transform infrared spectroscopy showed in vitro that sepiolite adsorption of olive oil and cholesterol was five to eight times greater than that of MMT clay. Sepiolite supplementation to HFD fed to mature mice for 12.5 weeks resulted in lower total blood cholesterol and triacylglycerol levels and attenuated body weight gain, by reducing fat gain. Sepiolite supplementation did not affect energy intake but increased fecal extraction of sterols and lipids, without notable side effects. These results demonstrate that supplementing a HFD with sepiolite attenuates gastrointestinal absorption of dietary lipids and sterols, thus mitigating obesity, hyperlipidemia, and hypercholesterolemia. Further exploration of the efficacy, mechanism of action, and safety of sepiolite as a food supplement for combating the metabolic syndrome is needed.
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