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2023-03-10作者:来源:责任编辑:食品界 字体A+AA-

过敏小鼠临床症状表征

过敏小鼠血清抗体及组胺含量测定

血清细胞因子检测

肠道菌群结构与相对丰度分析

肠道菌群多样性分析


肠道菌群LEfSe分析


刘成龙,男,中国农业大学食品科学与营养工程学院2018级博士研究生,研究方向食物过敏与肠道菌群。参与了“十三五”国家重点研发计划的相关研究工作。发表论文多篇,申请国家发明专利一项。

薛文通,男,中国农业大学食品科学与营养工程学院教授,博士生导师,中国农业大学中日食品研究中心主任,农业农村部农产品加工业专家委员会委员,农业农村部农产品加标准化技术委员会粮食加工技术委员会委员,中国农业工程学会农产品加工贮藏分会副理事长,中国食品和包装机械工业学会中央厨房工程与装备委员会副会长,中国农业机械学会农产品加工机械分会副主任委员,北京农业工程学会农产品加工贮藏分会会长。近年来主要研究食物致敏原确证技术及膳食成分对人体致敏机制影响;益生菌及其代谢产物对机体免疫应答规律等。共主持国家重点研发计划项目1项(食物过敏标识的风险评估技术研究),国家重点研发计划子课题1项,国家自然科学基金面上项目5项,国家科技支撑计划项目2项,国际合作项目2项,其他省部级研究项目19项。出版《主要食物过敏原致敏机理的研究》等著作14部。授权国家发明专利8项。获省部级及以上奖励5项。在国内外学术期刊发表论文240余篇。
Chenglong Liu, Chen Chen, Xingyu Yan, Shimin Gu, Xin Jia, Wenhui Fu, Xiao Meng, Wentong Xue*
College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
*Corresponding author.
Increasing incidences showed that food allergies have attracted more and more attention from researchers. BALB/c mice were sensitized with wheat gluten combined with aluminum hydroxide adjuvant via intraperitoneal injection, transdermal sensitization, and oral gavage sensitization route. Results showed that all the three sensitization methods could induce allergic symptoms; increase the serum antibody (total immunoglobulin E (IgE), specific IgE, IgG, IgA) and histamine content; promote the secretion of Th2 cytokines (interleukin (IL)-4, IL-5, IL-13) and inflammatory factors (IL-6, IL-17A, IL-10); and inhibit the production of Th1 cytokines (IFN-γ, IL-2). However, the allergic symptoms of mice sensitized by intraperitoneal injection were the most obvious among the three models. The level of serum antibodies in intraperitoneal injection group was significantly higher than control. Subsequently, 16S rRNA sequencing technology was used to analyze the intestinal flora of mice. The results showed that the abundance of Firmicutes in the wheat protein sensitized group was lower than that in the normal group, while the abundance of Bacteroidetes was higher, and Lactobacillus was the difference marker in normal group. Bacterial species diversity analysis showed that the species richness and diversity of intestinal flora in mice were decreased, the difference between mice induced by intraperitoneal injection and normal control group mice was the most significant. Taken together, these results show that among three sensitization methods used to build a mouse model with aluminum hydroxide as adjuvant, intraperitoneal injection is the comparably best way to build a mouse sensitization mode.
LIU C L, CHEN C, YAN X Y, et al. Assessment of immune responses and intestinal flora in BALB/c mice model of wheat food allergy via different sensitization methods[J]. Food Science and Human Wellness, 2023, 12(3): 871-881. DOI:10.1016/j.fshw.2022.09.016.
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编辑:梁安琪;责任编辑:张睿梅