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Genetic factors are involved in the development, progression, and severity of NAFLD. Polymorphisms in genes regulating liver functions may increase liver susceptibility to NAFLD. Therefore, we conducted this literature study to present recent findings on NAFLD-associated polymorphisms from published articles in PubMed from 2016 to 2021. From 69 selected research articles, 20 genes and 34 SNPs were reported to be associated with NAFLD. These mutated genes affect NAFLD by promoting liver steatosis (PNPLA3, MBOAT7, TM2SF6, PTPRD, FNDC5, IL-1B, PPARGC1A, UCP2, TCF7L2, SAMM50, IL-6, AGTR1, and NNMT), inflammation (PNPLA3, TNF-α, AGTR1, IL-17A, IL-1B, PTPRD, and GATAD2A), and fibrosis (IL-1B, PNPLA3, MBOAT7, TCF7L2, GATAD2A, IL-6, NNMT, UCP, AGTR1, and TM2SF6). The identification of these genetic factors helps to better understand the pathogenesis pathways of NAFLDKey Words: Fibrosis, Inflammation, Non-alcoholic fatty liver disease, Polymorphism 相似文献
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大豆异黄酮提取研究最新进展 总被引:1,自引:0,他引:1
大豆异黄酮具有预防癌症与心血管疾病,减轻妇女更年期综合症等多种重要生理功能。大豆异黄酮主要采用传统溶剂加热、超声波、微波辅助等方法进行提取。文章对近年来大豆异黄酮提取方法的研究进行综述,以期为大豆异黄酮作为保健食品资源的开发和应用提供依据。 相似文献
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大豆异黄酮结构与17-(雌二醇相似具有弱雌激素作用。绝经后妇女的心血管疾病、骨质疏松、肥胖、乳腺癌等发病率升高。大豆异黄酮通过多种机制预防绝经后妇女的骨质疏松症、心血管疾病、肥胖、激素相关性癌症如乳腺癌等。文章综述了近年来有关大豆异黄酮与绝经后妇女相关疾病的研究进展。 相似文献
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为探索大豆异黄酮对过氧化氢(H_2O_2)致肝细胞损伤的保护作用,以H_2O_2损伤Chang Liver细胞建立肝细胞氧化应激损伤模型,并以10,20和40 mg·L~(-1)大豆异黄酮进行干预。采用四甲基偶氮唑盐比色(MTT)法检测肝细胞存活率;以微板法检测细胞培养液中乳酸脱氢酶(LDH)、谷丙转氨酶(ALT)、谷草转氨酶(AST)活性和肝细胞超氧化物歧化酶(SOD)活性,以及肝细胞还原型谷胱甘肽(GSH)和丙二醛(MDA)含量;采用蛋白印迹技术检测肝细胞核因子-E2相关因子2(Nrf2)蛋白含量。在10~40 mg·L~(-1)范围内,大豆异黄酮对Chang Liver细胞不显示细胞毒作用。300μmol·L~(-1)H_2O_2刺激后,模型组肝细胞存活率与正常组比较下降,细胞外液中ALT、AST、LDH水平上升,说明Chang Liver细胞损伤显著;而模型组肝细胞中SOD和GSH水平与正常组比较下降,丙二醛水平上升,说明模型组Chang Liver细胞氧化应激增强。大豆异黄酮可剂量依赖性地提高Chang Liver细胞存活率,降低ALT、AST、LDH向细胞外液的释放;降低细胞MDA水平,升高细胞SOD和GSH水平,增高核中Nrf2蛋白水平。研究结果显示大豆异黄酮对H_2O_2致肝细胞氧化应激损伤具有保护作用。 相似文献
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为了探讨大豆异黄酮和皂甙对H_(22)小鼠肝癌移植瘤的生长抑制及促细胞凋亡作用,建立小鼠皮下H_(22)移植瘤模型,将其分为模型组、5-氟尿嘧啶组、大豆异黄酮组和大豆皂甙组。大豆异黄酮和大豆皂甙组分别按200 mg·kg~(-1)剂量每日灌胃给药,共10次;5-Fu组按25 mg·kg~(-1)剂量隔日腹腔注射给药,共5次。实验末期处死动物,计算抑瘤率、胸腺指数和脾脏指数,苏木素-伊红(HE)染色法观察肿瘤组织病理学变化,比色法检测肿瘤组织Caspase-3和Caspase-8相对活性以及血清还原型谷胱甘肽(GSH)含量、总抗氧化活力(T-AOC)和丙二醛(MDA)含量。结果表明:与模型组比较,大豆异黄酮和皂甙处理均能显著降低H_(22)小鼠肝癌移植瘤组织的瘤重,提高抑瘤率,其抑癌率分别为36.3%和34.8%。同时,大豆异黄酮和皂甙均显著升高荷瘤小鼠脾脏指数,增高肿瘤组织Caspase-3和Caspase-8相对活性,降低小鼠血清MDA水平,增高血清GSH和T-AOC水平。试验说明大豆异黄酮和皂甙对H_(22)小鼠肝癌移植瘤具有明显的抑瘤作用,其作用可能与其促细胞凋亡和抗氧化作用有关。 相似文献
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为了探讨大豆异黄酮对肝癌移植瘤血管生成的抑制作用,建立小鼠H22肝癌皮下移植瘤模型。用大豆异黄酮干预10 d,利用免疫组化染色法检测肿瘤组织内微血管密度,利用免疫印迹法检测肿瘤组织内血管内皮细胞生长因子(VEGF)、血管内皮细胞生长因子受体2(VEGFR2)和缺氧诱导因子-1α(HIF-1α)的表达,酶联免疫吸附测定(ELISA)法检测转化生长因子-β1(TGF-β1)和基质金属蛋白酶2(MMP2)的水平。结果显示,大豆异黄酮组移植瘤细胞生长受到抑制,细胞坏死较严重。与模型组比较,大豆异黄酮组肿瘤组织内微血管密度降低;VEGF、VEGFR2和HIF1α的蛋白表达降低;TGF-β1及MMP2蛋白表达下降。提示,大豆异黄酮对小鼠H_(22)移植瘤组织的血管生成具有抑制作用,机制可能与下调移植瘤组织VEGF和TGF-β1蛋白表达有关。 相似文献
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María Gimena Galán Silvina Rosa Drago 《Plant foods for human nutrition (Dordrecht, Netherlands)》2014,69(3):283-289
Enteral formulas (EF) are complex food systems which have all the nutrients in their matrix for the complete human nourishment. However, there are components in EF which can interact with minerals, reducing their absorption, and thereof the EF nutritional quality. The effect of soy protein (SP) and Ca content on Fe, Zn, and Ca bioaccessibility and protein digestibility (%DP) was assessed using a response surface design in EF. Tested SP levels were 2.5–5.0 g/100 mL of total protein. Ca levels were adjusted with Ca citrate within a range between 50 and 100 mg/100 mL. SP content negatively influenced %DP and Fe, Zn and Ca bioaccessibility. As SP content increased, mineral bioaccessibility and %DP decreased, probably due to the increased levels of phytic acid and trypsin inhibitors from SP. Ca content only affected %DCa, which had a direct relationship with Ca levels, while did not affect Fe and Zn bioaccessibility or %DP. Since Ca citrate did not impair Fe and Zn bioaccessibility, it could be an appropriate Ca source for EF fortification. 相似文献
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非酒精性脂肪肝是以肝实质细胞发生脂肪堆积和脂肪变性为主要特征,并伴随机体脂质代谢紊乱的一种获得性代谢疾病。以高脂饲料喂养大鼠,建立非酒精性脂肪肝大鼠模型;以低、中、高剂量(10、50、100 mg·kg-1)表没食子儿茶素没食子酸酯(EGCG)分别灌胃模型大鼠,探讨茶叶中EGCG对非酒精性脂肪肝大鼠的调脂保肝作用。结果表明,与模型组相比,EGCG能显著降低血清中甘油三酯(TG)、总胆固醇(TC)和低密度脂蛋白-胆固醇(LDL-C)含量,降低丙氨酸氨基转移酶(ALT)和天冬氨酸转氨酶(AST)活性水平,提高高密度脂蛋白-胆固醇(HDL-C)的含量,改善大鼠肝脏氧化应激状态。此外,肝脏病理切片显示,EGCG能减少肝细胞中脂滴的形成,同时脂质代谢相关基因表达量分析显示,EGCG能调理肝脏的脂质代谢。综合以上实验结果表明,EGCG能显著改善非酒精性脂肪肝大鼠的脂质代谢紊乱和脂肪性肝损伤。 相似文献
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大豆蛋白的甘露聚糖糖基化研究 总被引:3,自引:0,他引:3
将大豆分离蛋白与甘露聚糖糖基化生成大豆糖蛋白,力求为工业化生产大豆糖肽作为原料.采用SDS-PAGE电泳技术,OPA法测定大豆蛋白的接枝度,结果大豆分离蛋白的7S和11S中各亚基均参与了糖基化反应,70℃和80℃的蛋白接枝度在30%左右;糖蛋白的溶解性测定结果显示经过糖基化之后的大豆糖蛋白溶解性有显著提高并且等电点向酸性方向偏移,糖基化之后的蛋白含糖量随糖基化温度升高而增加. 相似文献
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Seyeon Oh Myeongjoo Son Kyung-A Byun Ji Tae Jang Chang Hu Choi Kuk Hui Son Kyunghee Byun 《Marine drugs》2021,19(6)
Nonalcoholic fatty liver disease (NAFLD), which promotes serious health problems, is related to the increase in the nucleotide-binding oligomerization domain-like receptor family, pyrin domain containing 3 (NLRP3) inflammasome and pyroptosis by a high-fat diet (HFD). Whether dieckol (DK), a component of Ecklonia cava extracts (ECE), attenuated NAFLD in an HFD-induced NAFLD animal model was evaluated. The expression of high mobility group box 1/Toll-like receptor 4/nuclear factor-κB, which initiated the NLRP3 inflammasome, was increased in the liver of HFD-fed animals and significantly decreased with ECE or DK administration. The expression of NLRP3/ASC/caspase-1, which are components of the NLRP3 inflammasome, and the number of pyroptotic cells were increased by HFD and decreased with ECE or DK administration. The accumulation of triglycerides and free fatty acids in the liver was increased by HFD and decreased with ECE or DK administration. The histological NAFLD score was increased by HFD and decreased with ECE or DK administration. The expression of lipogenic genes (FASN, SREBP-2, PPARγ, and FABP4) increased and that of lipolytic genes (PPARα, CPT1A, ATGL, and HSL) was decreased by HFD and attenuated with ECE or DK administration. In conclusion, ECE or DK attenuated NAFLD by decreasing the NLRP3 inflammasome and pyroptosis. 相似文献
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考察六堡茶茶褐素体外结合胆酸盐能力、抑制胰脂肪酶活性及胆固醇酯酶活性能力、吸附胆固醇及油脂能力,从而评价其体外降脂活性。研究结果显示,六堡茶茶褐素对花生油的吸附量为0.73 g·g-1,对胆固醇的吸附量在酸性条件下为122.42 mg·g-1、中性条件下为13.68 mg·g-1;在茶褐素结合胆酸盐的试验中,随着茶褐素浓度的增加,与胆酸盐结合能力也呈上升趋势;茶褐素对胰脂肪酶起激活作用,且随着浓度的增加呈持续上升趋势;对胆固醇酯酶活性抑制IC50值为57.2 mg·mL-1。六堡茶茶褐素降脂机制可能主要通过与胆酸盐结合、吸附胆固醇和脂肪来实现。 相似文献