AlNafea Haifa M, Korish Aida A
Clinical Laboratory Sciences Department, College of Applied Medical Sciences, King Saud University, Unit No. 3928, PO Box 7960, Riyadh 12284, Saudi Arabia.
Physiology Department (29), College of Medicine, King Saud University Medical City (KSUMC), King Saud University, PO Box 2925, Riyadh 11461, Saudi Arabia.
PPAR Res. 2021 Jul 9;2021:5558731. doi: 10.1155/2021/5558731. eCollection 2021.
Camel milk (CM) has a unique composition rich in antioxidants, trace elements, immunoglobulins, insulin, and insulin-like proteins. Treatment by CM demonstrated protective effects against nonalcoholic fatty liver disease (NAFLD) induced by a high-fat cholesterol-rich diet (HFD-C) in rats. CM dampened the steatosis, inflammation, and ballooning degeneration of the hepatocytes. It also counteracted hyperlipidemia, insulin resistance (IR), glucose intolerance, and oxidative stress. The commencement of NAFLD triggered the peroxisome proliferator-activated receptor- (PPAR-), carnitine palmitoyl-transferase-1 (CPT1A), and fatty acid-binding protein-1 (FABP1) and decreased the PPAR- expression in the tissues of the animals on HFD-C. This was associated with increased levels of the inflammatory cytokines IL-6 and TNF- and leptin and declined levels of the anti-inflammatory adiponectin. Camel milk treatment to the NAFLD animals remarkably upregulated PPARs (, ) and the downstream enzyme CPT1A in the metabolically active tissues involved in cellular uptake and beta-oxidation of fatty acids. The enhanced lipid metabolism in the CM-treated animals was linked with decreased expression of FABP1 and suppression of IL-6, TNF-, and leptin release with augmented adiponectin production. The protective effects of CM against the histological and biochemical features of NAFLD are at least in part related to the activation of the hepatic and extrahepatic PPARs (, ) with consequent activation of the downstream enzymes involved in fat metabolism. Camel milk treatment carries a promising therapeutic potential to NAFLD through stimulating PPARs actions on fat metabolism and glucose homeostasis. This can protect against hepatic steatosis, IR, and diabetes mellitus in high-risk obese patients.
骆驼奶(CM)具有独特的成分,富含抗氧化剂、微量元素、免疫球蛋白、胰岛素和胰岛素样蛋白。CM治疗对高脂高胆固醇饮食(HFD-C)诱导的大鼠非酒精性脂肪性肝病(NAFLD)具有保护作用。CM减轻了肝细胞的脂肪变性、炎症和气球样变性。它还对抗了高脂血症、胰岛素抵抗(IR)、葡萄糖不耐受和氧化应激。NAFLD的发生触发了过氧化物酶体增殖物激活受体-(PPAR-)、肉碱棕榈酰转移酶-1(CPT1A)和脂肪酸结合蛋白-1(FABP1),并降低了HFD-C喂养动物组织中PPAR-的表达。这与炎性细胞因子IL-6、TNF-和瘦素水平升高以及抗炎性脂联素水平下降有关。对NAFLD动物进行骆驼奶治疗可显著上调参与脂肪酸细胞摄取和β氧化的代谢活跃组织中的PPARs(、)和下游酶CPT1A。CM治疗动物中增强的脂质代谢与FABP1表达降低以及IL-6、TNF-和瘦素释放受到抑制、脂联素产生增加有关。CM对NAFLD组织学和生化特征的保护作用至少部分与肝内和肝外PPARs(、)的激活有关,从而激活参与脂肪代谢的下游酶。骆驼奶治疗通过刺激PPARs对脂肪代谢和葡萄糖稳态的作用,对NAFLD具有有前景的治疗潜力。这可以保护高危肥胖患者免受肝脂肪变性、IR和糖尿病的影响。