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中国中医科学院 中医基础理论研究所,北京 100700
胡晶,在读硕士,从事中医药防治心血管病的基础研究,Tel:010-64089029,E-mail:huhum17@163.com
张治国,博士,研究员,从事中医药防治代谢性疾病的基础研究,Tel:010-64025179,E-mail:zzgtcm@163.com; *
陈彦静,博士,教授,从事中医药防治心血管病的基础研究,Tel:010-64089029,E-mail:chenyj010@163.com
纸质出版日期:2022-06-20,
网络出版日期:2022-04-01,
收稿日期:2021-12-30,
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胡晶,姜燕华,王昱涵等.去卵巢大鼠肠道菌群结构和功能的变化及二仙汤的干预作用[J].中国实验方剂学杂志,2022,28(12):61-68.
HU Jing,JIANG Yan-hua,WANG Yu-han,et al.Changes in Intestinal Microflora and Lipid Metabolism in Ovariectomized Rats and Regulatory Effect of Erxian Decoction[J].Chinese Journal of Experimental Traditional Medical Formulae,2022,28(12):61-68.
胡晶,姜燕华,王昱涵等.去卵巢大鼠肠道菌群结构和功能的变化及二仙汤的干预作用[J].中国实验方剂学杂志,2022,28(12):61-68. DOI: 10.13422/j.cnki.syfjx.20221237.
HU Jing,JIANG Yan-hua,WANG Yu-han,et al.Changes in Intestinal Microflora and Lipid Metabolism in Ovariectomized Rats and Regulatory Effect of Erxian Decoction[J].Chinese Journal of Experimental Traditional Medical Formulae,2022,28(12):61-68. DOI: 10.13422/j.cnki.syfjx.20221237.
目的
2
采用16S rRNA基因测序探讨二仙汤对大鼠去卵巢后肠道菌群变化的干预作用。
方法
2
将32只雌性健康SD大鼠随机分为4组,每组8只,分别为假手术(Sham)组、模型(OVX)组、雌激素(E)组及二仙汤(EXD)组。E组、EXD组分别以1.8×10
-4
g·kg
-1
剂量戊酸雌二醇药液、9 g·kg
-1
剂量二仙汤进行灌胃,余下两组给予等体积蒸馏水,1次/d,持续16周。16周后,检测大鼠血清雌激素及血脂四项水平,提取大鼠粪便DNA,给予16S rRNA基因测序并分析结果。
结果
2
与Sham组比较,OVX组血清雌激素水平显著降低(
P
<
0.01),血清总胆固醇(TC)、低密度脂蛋白胆固醇(LDL-C)水平明显升高(
P
<
0.05),与OVX组比较,E组与EXD组血清雌激素水平显著升高(
P
<
0.01),TC、LDL-C水平明显降低(
P
<
0.05)。Alpha多样性显示,去卵巢后肠道菌群多样性无显著性变化。Beta多样性显示,4组菌群结构具有显著性差异,二仙汤干预可以改善去卵巢后肠道菌群变化。利用LEfSe分析4组差异菌群,Sham组与OVX组有3个差异菌门、18个差异菌属,OVX组与E组有1个差异菌门、12个差异菌属,OVX组与EXD组有3个差异菌门、5个差异菌属。雌激素干预可以使OVX组瘤胃球菌1(
Ruminococcus
1)、厌氧弧菌(
Anaerovibrio
)、苏黎世杆菌(
Turicibacter
)3种菌属变化趋势逆转恢复;二仙汤干预可以使OVX组拟杆菌门和厚壁菌门2种菌门变化趋势逆转恢复,普雷沃氏菌9(
Prevotella
9)、瘤胃球菌科UCG-014属(
Ruminococcaceae
UCG-014)、瘤胃球菌1(
Ruminococcus
1)、纺锤链杆属(
Fusicatenibacter
)4种菌属变化趋势逆转恢复。
结论
2
去卵巢大鼠肠道菌群结构和功能发生明显改变,二仙汤可以改善这种变化。
Objective
2
To explore the intervention effect of Erxian decoction on intestinal microflora after ovariectomy in rats by 16S rRNA gene sequencing.
Method
2
Thirty-two female healthy SD rats were randomly divided into a Sham operation (Sham) group, a model (OVX) group, an estrogen (E) group, and an Erxian decoction (EXD) group, with 8 rats in each group. The rats in the E group and the EXD group received 1.8×10
-4
g·kg
-1
estradiol valerate solution and 9 g·kg
-1
Erxian decoction, respectively, and those in the Sham group and the OVX group received an equal volume of distilled water once a day for 16 weeks. After 16 weeks, the levels of serum estrogen and blood lipid were detected. The fecal DNA was extracted, followed by 16S rRNA gene sequencing and analysis.
Result
2
Compared with the Sham group, the OVX group showed reduced serum estrogen level (
P
<
0.01) and increased serum levels of total cholesterol (TC) and low-density lipoprotein cholesterol (LDL-C) (
P
<
0.05). Compared with the OVX group, the E group and the EXD group showed increased serum estrogen level (
P
<
0.01) and reduced TC and LDL-C (
P
<
0.05). Alpha diversity showed that there was no significant change in intestinal microflora diversity after ovariectomy. Beta diversity showed that there were significant differences in the structure of intestinal microflora in the four groups. The intervention of Erxian decoction could improve the changes in intestinal microflora after ovariectomy. LEfSe was used to analyze the differential flora in the four groups. The results showed that the Sham group and the OVX group had 3 differential bacterial phyla and 18 differential bacterial genera, the OVX group and the E group had 1 differential bacterial phylum and 12 differential bacterial genera, and the OVX group and the EXD group had 3 differential bacterial phyla and 5 differential bacterial genera. Estrogen intervention could reverse the change trend of
Ruminococcus
1,
Anaerovibrio
, and
Turicibacter
in the OVX group. Erxian decoction intervention could reverse the change trend of Bacteroidetes, Firmicutes,
Prevotella
9,
Ruminococcaceae
UCG-014,
Ruminococcus
1, and
Fusicatenibacter
in the OVX group.
Conclusion
2
The structure and function of intestinal microflora in ovariectomized rats changed obviously, and Erxian decoction could ameliorate the change.
16S rRNA基因测序去卵巢大鼠肠道菌群二仙汤脂代谢
16S rRNA gene sequencingovariectomized ratsintestinal floraErxian decoctionlipid metabolism
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