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    Please use this identifier to cite or link to this item: http://asiair.asia.edu.tw/ir/handle/310904400/111700


    Title: Bioactive Peptide Improves Diet-Induced Hepatic Fat Deposition and Hepatocyte Proinflammatory Response in SAMP8 Ageing Mice
    Authors: Dume, Stanley;Dumeus, Stanley;Marthandam, A;Shibu, Marthandam Asokan;Lin, Wan-Teng;Lin, Wan-Teng;Wang, Ming-Fu;Wang, Ming-Fu;La, Chao-Hung;Lai, Chao-Hung;She, Chia-Yao;Shen, Chia-Yao;Lin, Yueh-Min;Lin, Yueh-Min;Padma, Vijaya;Viswanadha, Vijaya Padma;Kuo, Wei-Wen;Kuo, Wei-Wen;黃志揚;Huang, Chih-Yang;*
    Contributors: 生物科技學系
    Date: 2018-07
    Issue Date: 2018-12-25 10:55:23 (UTC+8)
    Abstract: Background/Aims: High-fat diet (HFD)-induced nonalcoholic fatty liver disease (NAFLD) poses therapeutic challenges in elderly subjects. Due to lack of efficient drug therapy, plant-based bioactive peptides have been studied as alternative strategy in NAFLD and for less toxicity in elderly. To mimic fatty liver in aging conditions, researchers highly commended the genetically engineered strains SAMP8 (senescence-accelerated mice prone 8). However, there is a paucity of reports about the anti-steatosis effects of bioactive peptides against fatty liver development under a combined action of high-fat diet exposure and aging process. This study was conducted to evaluate the activity of DIKTNKPVIF peptide synthesized from alcalase-generated potato protein hydrolysate (PH), on reducing HFD-driven and steatosis-associated proinflammatory reaction in ageing model. Methods: Five groups of six-month-old SAMP8 mice (n=4, each) were fed either a normal chow (NC group) for 14 weeks upon sacrifice, or induced with a 6-week HFD feeding, then treated without (HCO group) or with an 8-week simultaneous administration of peptide (HPEP group), protein (HPH group) or probucol (HRX group). Liver organs were harvested from each group for histological analysis and immunoblot assay. Results: In contrast to NC, extensive fat accumulation was visualized in the liver slides of HCO. Following the trends of orally administered PH, intraperitoneally injected peptide reduces hepatic fat deposition and causes at protein level, a significant decrease in HFD-induced proinflammatory mediators p-p38 MAPK, FGF-2, TNF-α, IL-6 with concomitant reactivation of AMPK. However, p-Foxo1 and PPAR-α levels were slightly changed. Conclusion: Oral supplementation of PH and intraperitoneal injection of derived bioactive peptide alleviate proinflammatory reaction associated with hepatosteatosis development in elderly subjects, through activation of AMPK.
    Relation: CELLULAR PHYSIOLOGY AND BIOCHEMISTRY
    Appears in Collections:[Department of Biotechnology] Journal Article

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