MYDGF对小鼠非酒精性脂肪肝的保护作用及其机制研究
发布时间:2021-07-23 17:55
研究背景和目的骨髓是否调节全身代谢仍然未知。我们的最新研究表明,由骨髓细胞(bone marrow cells,BMCs)分泌的髓源性生长因子(myeloid-derived growth factor,MYDGF)能够减轻2型糖尿病小鼠的胰岛素抵抗。在这里,我们探讨MYDGF是否能改善非酒精性脂肪性肝病(non-alcoholic fatty liver disease,NAFLD),并作为骨髓与肝脏之间的信使分子来调节肝脏脂肪代谢。方法1、骨髓细胞特异性MYDGF敲除小鼠(MYDGF-/-,KO)和野生型对照(MYDGF+/+,WT)小鼠接受高脂饮食(high-fat diet,HFD)喂养,从而建立NAFLD模型。2、通过尾静脉注射腺相关病毒(adeno-associated viruses,AAV)-MYDGF在肝脏中超表达MYDGF,通过骨髓移植(bone marrow transplantion,BMT)和骨髓腔内原位注射AAV-MYDGF在骨髓中超表达MYDGF。通过siRNA沉默骨髓细胞特异性MYDGF敲除小鼠肝脏的IKKβ。3、采用苏木素-伊红染色、油红O染色和电子显...
【文章来源】:南方医科大学广东省
【文章页数】:146 页
【学位级别】:博士
【部分图文】:
图2-〗NAFLD小鼠的MYDGF水平且与NAFLD严重程度进展呈负相关??(A)在NAFLD小鼠和非NAFLD小鼠中以及在不同时间点NAFLD小鼠中的血??
第二章NAFLD小鼠血清MYDGF表达??2.4.2?NAFLD小鼠的炎症反应增高??肥胖可能导致体内炎症反应。剧烈的炎症可以加剧NAFLD的进展[21]。??因此我们检测了?NAFLD小鼠的炎症特征。结果显示NAFLD小鼠血清的??TNF-ouIL-lp和IL-6较对照组小鼠相比显著升高(P<0.01),且与非NAFLD??小鼠相比,NAFLD小鼠肝脏中炎症因子显著增高(P<0.01)(图2-2?B)。??A?B??nr?一一??§.?50n?Mice?E?4〇t?Mice?E?30-,?Mice??i?-111?1I?:lll?i?i::?J?i?J??/?^?》?\T?"T?^??,?,?,?身?v????图2-2?NAFLD小鼠的炎症反应增高??(A)在NAFLD和对照小鼠(n?=?10)中的血清TNF-a、IL-lp和IL-6水平。(B)??肝脏中的TNF-a、IL-ip和IL-6mRNA水平(n?=?10)。AU,任意单位,数据以均??数士标准差表示。#P<0.01?vs?非?NAFLD?组,*尸?<0.01?vs.?non-NAFLD?组。??Figure?2-2.?Increased?inflammation?in?NAFLD?mice??(A)?Serum?TNF-a,?IL-ip?and?IL-6?levels?in?NAFLD?and?control?mice?(n=10).?(B)?TNF-a,??IL-ip?and?IL-6?mRNA?levels?in?the?liver?(n=10).?AU,?arbitrary?unit.?Data?are?presented?as?mean?
博士学々论文??相关性。??9〇?r=-0.67,?p=0.03?g〇?r=-0.67,?p=0.04?的?r=-0.64,?p=0.04??lS85l?.?lgH?\?1?85..v?.??80?N.?■?is80?X-?IS80?X?:??s?75?V?s|75'?.?X???X?.??i?2?70?V?iS?70-?>?i?2?7〇.?X#??6?25?30?35?40?45?6¥25?30?35?40?6515?20?25?30??Mice?serumTNF-a?(pg/mL)?Mice?serum?IL-1p?(pg/mL)?Mice?serum?IL-6?(pg/mL)??图2-3?NAFLD小鼠MYDGF和NAFLD炎症之间存在相关性??NAFLD小鼠中血浆MYDGF水平与血清TNF-ct、IL-ip和IL-6水平的相关性(n=?10)。??Figure?2-3?Correlation?between?MYDGF?and?NAFLD?inflammation?in?NAFLD?mice??Correlation?between?plasma?MYDGF?levels?and?serum?TNF-a,?IL-lp?and?IL-6??levels?in?NAFLD?mice?(n?=?10).??2.5总结??本部分实验结果初步发现NAFLD小鼠循环中MYDGF水平与NAFLD??发展有关。NAFLD导致体内血清MYDGF水平降低,且与NAFLD的严重??性呈负相关。NAFLD小鼠体内炎症因子水平增高,且MYDGF水平和??NA?FLD炎症之间可能存在负性相关。??29??
【参考文献】:
期刊论文
[1]Roles of liver innate immune cells in nonalcoholic fatty liver disease[J]. Yu-Tao Zhan, Department of Gastroenterology and Hepatology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China Wei An, Department of Cell Biology, Capital Medical University, Beijing 100069, China. World Journal of Gastroenterology. 2010(37)
本文编号:3299762
【文章来源】:南方医科大学广东省
【文章页数】:146 页
【学位级别】:博士
【部分图文】:
图2-〗NAFLD小鼠的MYDGF水平且与NAFLD严重程度进展呈负相关??(A)在NAFLD小鼠和非NAFLD小鼠中以及在不同时间点NAFLD小鼠中的血??
第二章NAFLD小鼠血清MYDGF表达??2.4.2?NAFLD小鼠的炎症反应增高??肥胖可能导致体内炎症反应。剧烈的炎症可以加剧NAFLD的进展[21]。??因此我们检测了?NAFLD小鼠的炎症特征。结果显示NAFLD小鼠血清的??TNF-ouIL-lp和IL-6较对照组小鼠相比显著升高(P<0.01),且与非NAFLD??小鼠相比,NAFLD小鼠肝脏中炎症因子显著增高(P<0.01)(图2-2?B)。??A?B??nr?一一??§.?50n?Mice?E?4〇t?Mice?E?30-,?Mice??i?-111?1I?:lll?i?i::?J?i?J??/?^?》?\T?"T?^??,?,?,?身?v????图2-2?NAFLD小鼠的炎症反应增高??(A)在NAFLD和对照小鼠(n?=?10)中的血清TNF-a、IL-lp和IL-6水平。(B)??肝脏中的TNF-a、IL-ip和IL-6mRNA水平(n?=?10)。AU,任意单位,数据以均??数士标准差表示。#P<0.01?vs?非?NAFLD?组,*尸?<0.01?vs.?non-NAFLD?组。??Figure?2-2.?Increased?inflammation?in?NAFLD?mice??(A)?Serum?TNF-a,?IL-ip?and?IL-6?levels?in?NAFLD?and?control?mice?(n=10).?(B)?TNF-a,??IL-ip?and?IL-6?mRNA?levels?in?the?liver?(n=10).?AU,?arbitrary?unit.?Data?are?presented?as?mean?
博士学々论文??相关性。??9〇?r=-0.67,?p=0.03?g〇?r=-0.67,?p=0.04?的?r=-0.64,?p=0.04??lS85l?.?lgH?\?1?85..v?.??80?N.?■?is80?X-?IS80?X?:??s?75?V?s|75'?.?X???X?.??i?2?70?V?iS?70-?>?i?2?7〇.?X#??6?25?30?35?40?45?6¥25?30?35?40?6515?20?25?30??Mice?serumTNF-a?(pg/mL)?Mice?serum?IL-1p?(pg/mL)?Mice?serum?IL-6?(pg/mL)??图2-3?NAFLD小鼠MYDGF和NAFLD炎症之间存在相关性??NAFLD小鼠中血浆MYDGF水平与血清TNF-ct、IL-ip和IL-6水平的相关性(n=?10)。??Figure?2-3?Correlation?between?MYDGF?and?NAFLD?inflammation?in?NAFLD?mice??Correlation?between?plasma?MYDGF?levels?and?serum?TNF-a,?IL-lp?and?IL-6??levels?in?NAFLD?mice?(n?=?10).??2.5总结??本部分实验结果初步发现NAFLD小鼠循环中MYDGF水平与NAFLD??发展有关。NAFLD导致体内血清MYDGF水平降低,且与NAFLD的严重??性呈负相关。NAFLD小鼠体内炎症因子水平增高,且MYDGF水平和??NA?FLD炎症之间可能存在负性相关。??29??
【参考文献】:
期刊论文
[1]Roles of liver innate immune cells in nonalcoholic fatty liver disease[J]. Yu-Tao Zhan, Department of Gastroenterology and Hepatology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China Wei An, Department of Cell Biology, Capital Medical University, Beijing 100069, China. World Journal of Gastroenterology. 2010(37)
本文编号:3299762
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