1.中山大学公共卫生学院(深圳),广东 深圳518000
2.广东省营养与健康重点实验室,广东 广州 510080
3.广东省营养转化工程技术研究中心,广东 广州510080
4.中山大学公共卫生学院,广东 广州 510080
5.同济大学附属上海市第四人民医院,临床营养科,上海 200434
6.广州市妇女儿童医疗中心耳鼻喉科,广东 广州510623
李琴,硕士生,研究方向:膳食营养素对过敏性气道炎症的防治,E-mail: liqin55@mail2.sysu.edu.cn
陈彦球,共同通信作者,博士,副主任医师,E-mail: 270003833@qq.com
收稿:2021-12-15,
纸质出版:2022-05-20
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李琴,申云琴,郭兴悦等.膳食菊苣酸对过敏性哮喘小鼠的体内调节作用[J].中山大学学报(医学科学版),2022,43(03):373-380.
LI Qin,SHEN Yun-qin,GUO Xing-yue,et al.Regulation of Dietary Cichoric Acid in Allergic Asthmatic Mice In Vivo[J].Journal of Sun Yat-sen University(Medical Sciences),2022,43(03):373-380.
李琴,申云琴,郭兴悦等.膳食菊苣酸对过敏性哮喘小鼠的体内调节作用[J].中山大学学报(医学科学版),2022,43(03):373-380. DOI: 10.13471/j.cnki.j.sun.yat-sen.univ(med.sci).2022.0305.
LI Qin,SHEN Yun-qin,GUO Xing-yue,et al.Regulation of Dietary Cichoric Acid in Allergic Asthmatic Mice In Vivo[J].Journal of Sun Yat-sen University(Medical Sciences),2022,43(03):373-380. DOI: 10.13471/j.cnki.j.sun.yat-sen.univ(med.sci).2022.0305.
目的
2
探讨膳食添加菊苣酸对过敏性哮喘小鼠的体内调节作用。
方法
2
将16只5周龄雌性 BALB/c 小鼠随机分为4组:正常组(Control)、过敏性哮喘模型组(OVA)、膳食菊苣酸干预组(OVA+CA)和药物对照组(OVA+DEX)。使用卵清蛋白诱导过敏性哮喘小鼠模型,并全程饲喂含有400 mg/kg菊苣酸的饲料或不含菊苣酸的普通饲料。观察并记录小鼠体质量变化和鼻部症状,小鼠牺牲后检测肺组织病理学变化、外周血炎症细胞数量和比例,检测肺组织辅助性T细胞(Th)和细胞毒性T细胞(Tc)各亚型百分比。
结果
2
与过敏性哮喘模型组相比,膳食菊苣酸干预组的体质量减轻现象和挠鼻症状明显改善(
P
<
0.05),外周血嗜酸性粒细胞数量、嗜酸性粒细胞/淋巴细胞比值显著下降(
P
<
0.05),肺部炎症浸润情况以及杯状细胞增生情况缓解(
P
<
0.05),肺组织Th2、Th17、Tc2、Tc17百分比降低(
P
<
0.001),Th1和Tc1百分比则没有变化(
P
>
0.05)。
结论
2
膳食补充菊苣酸能有效改善过敏性哮喘小鼠体内炎症。
Objective
2
To investigate the
in vivo
effect of dietary cichoric acid supplement in allergic asthmatic mice.
Methods
2
Sixteen five-week-old female BALB/c mice were randomly divided into four groups: normal group (control), allergic asthmatic group (OVA), dietary cichoric acid group (OVA + CA), and drug-control group (OVA + DEX). Ovalbumin was applied to induce allergic asthmatic murine model. During the whole experiment, mice were fed with feed that contained 400 mg/kg cichoric acid or no cichoric acid. The body weight changes and nasal symptoms were observed and recorded during the experiment. After sacrifice, the pulmonary histopathological changes, the number and proportion of peripheral inflammatory cells, and the percentages of subsets of helper T cell (Th) and cytotoxic T cell (Tc) in lung tissues were measured.
Results
2
Compared with OVA group, the mice in OVA + CA group showed alleviated body weight loss and nasal symptoms (
P
<
0.05), decreased number of eosinophils and eosinophil/lymphocyte ratio in peripheral blood (
P
<
0.05), alleviated inflammatory infiltration and goblet cell proliferation of lungs tissues (
P
<
0.05), decreased percentages of Th2, Th17 , Tc2, Tc17 in lungs (
P
<
0.001), while the percentages of Th1 and Tc1 did not change (
P
>
0.05).
Conclusions
2
Dietary cichoric acid supplementation could improve
in vivo
inflammation in allergic asthmatic mice.
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