1.北京中医药大学,北京市朝阳区北三环东路11号,100029
2.北京中医药大学东方医院
houxiujuan2008@163.com,13520161572
收稿:2021-05-27,
修回:2021-09-01,
纸质出版:2022-01-02
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王海瑜,张玉婷,柏志义等.活血解毒方对NOD小鼠肠道菌群的影响[J].中医杂志,2022,63(01):56-63.
WANG Haiyu,ZHANG Yuting,BAI Zhiyi,et al.Effect of Huoxue Jiedu Formula (活血解毒方) on Intestinal Flora in NOD Mice[J].Journal of Traditional Chinese Medicine,2022,63(01):56-63.
王海瑜,张玉婷,柏志义等.活血解毒方对NOD小鼠肠道菌群的影响[J].中医杂志,2022,63(01):56-63. DOI: 10.13288/j.11-2166/r.2022.01.011.
WANG Haiyu,ZHANG Yuting,BAI Zhiyi,et al.Effect of Huoxue Jiedu Formula (活血解毒方) on Intestinal Flora in NOD Mice[J].Journal of Traditional Chinese Medicine,2022,63(01):56-63. DOI: 10.13288/j.11-2166/r.2022.01.011.
目的
2
探讨活血解毒方治疗干燥综合征的可能作用机制。
方法
2
35只干燥综合征经典动物模型NOD小鼠随机分为模型组、白芍总苷组及活血解毒方高、中、低剂量组,每组7只,另设7只C57BL/6J小鼠作为正常组。正常组与模型组小鼠均以10 ml/kg蒸馏水灌胃,白芍总苷组以234 mg/kg白芍总苷胶囊灌胃,活血解毒方高、中、低剂量组分别按62.4、31.2、15.6 g/(kg·d)灌胃活血解毒方。8周后观察各组小鼠颌下腺病理染色结果并进行评分,同时通过高通量测序检测各组小鼠肠道菌群的组成结构、优势菌群,并进行多样性分析。
结果
2
与正常组比较,模型组、白芍总苷组颌下腺病理组织评分升高(
P
<0.01)。HE染色显示,模型组可见外分泌腺结构破坏,腺泡不同程度萎缩,组织出现多灶性淋巴细胞浸润;活血解毒方各剂量组上述病理损伤减轻,少量散在淋巴细胞浸润,但未聚集成灶,其中活血解毒方中、高剂量组淋巴细胞浸润程度较活血解毒方低剂量组减轻。基于门水平分析,与正常组比较,模型组疣微菌门丰度降低、TM7菌门丰度升高(
P
<0.05);与模型组及白芍总苷组比较,活血解毒方低剂量组脱铁杆菌门丰度均升高(
P
<0.05)。基于属水平分析,与正常组比较,模型组臭味杆菌属丰度升高、普氏菌属丰度降低(
P
<0.05或
P
<0.01);与活血解毒方低剂量组比较,活血解毒方高剂量组臭味杆菌属丰度降低(
P
<0.01)。组间差异菌种筛选结果显示,正常组优势菌种19种,模型组优势菌种6种,白芍总苷组优势菌群1种,活血解毒方低、中、高剂量组优势菌种分别为6种、2种、8种。Alpha多样性分析显示,与正常组比较,模型组Faith_Pd指数下降(
P
<0.05);与模型组比较,活血解毒方低、中剂量组Faith_Pd指数均升高(
P
<0.01)。Beta多样性分析显示,除活血解毒方低剂量与活血解毒方中剂量组、活血解毒方中剂量组与活血解毒方高剂量组之间无差异外,其余各组之间肠道菌群结构差异均具有统计学意义(
P
<0.05或
P
<0.01)。
结论
2
活血解毒方可调节NOD小鼠肠道菌群结构、促进有益菌的生长、加快菌群的恢复,这可能是其治疗干燥综合征的机制之一。
Objective
2
To explore the possible mechanism of
Huoxue Jiedu Formula
(活血解毒方, HJF) in the treatment of Sjogren's syndrome.
Methods
2
Thirty-five NOD mice, a classic animal model of Sjogren's syndrome, were randomly divided into a model group, total glucosides of paeony (TGP) group, and HJF high, moderate and low dose group, with seven mice in each group; and seven C57BL/6J mice were set as normal group. The normal group and the model group were given 10 ml/kg of distilled water by gavage; the TGP group was administered with 234 mg/kg of TGP capsules by gavage, while the HJF high, moderate and low dose group were respectively given 62.4 g/(kg·d), 31.2 g/(kg·d) and 15.6 g/(kg·d) of HJF by gavage. After 8 weeks, the pathological staining of the submandibular glands were observed and scored. Simultaneously, the high-throughput sequencing was used to detect the composition of the intestinal flora and the dominant strains, and the diversity analysis was performed.
Results
2
Compared to those of the normal group, the pathological score of the submandibular glands of the model group and the TGP group significantly increased (
P
<0.01); HE staining showed that the exocrine gland structure was damaged, and there were acinar atrophy with varied degrees and multifocal lymphocytic infiltration in the tissues of the model group; the above-mentioned pathological damages were reduced in all three HJR groups with scarce scattered lymphocyte infiltration unable to gather into a stove, and more reduction was seen in the HJR moderate and high dose group than in the low dose group. The phylum level analysis showed that the model group had decreased Verrucomicrobial abundance and increased TM7 phylum abundance compared to the normal group (
P
<0.05); the HJF low dose group had increased Deferrobacteria abundance compared to the model group (
P
<0.05) and the TGP group (
P
<0.05). The genus level analysis showed that the model group had higher Odobacter abundance and lower Prevotella abundance compared to the normal group (
P
<0.05 or
P
<0.01); the HJF high dose group had decreased Odobacter abundance compared to the low dose group (
P
<0.01). Strain screening based on differences between groups showed that the number of dominant strains of the normal group, the model group and the TGP group were 19, 6 and 1, respectively, while that of the HJF low, moderate and high dose groups were 6, 2 and 8. Alpha diversity analysis showed that the model group had decreased Faith_Pd index compared to the normal group (
P
<0.05), while the HJF low and moderate dose groups had increased Faith_Pd index than the model group (
P
<0.01). Beta diversity analysis showed that there were significant differences between any two of the six groups in the intestinal flora structure except that between HJF low and moderate dose groups, and that between HJF moderate and high dose groups (
P
<0.05 or
P
<0.01).
Conclusion
2
HJF can regulate the intestinal flora structure of the NOD mice, promote the growth of the beneficial bacteria, and accelerate the recovery of the flora, which may explain the mechanism of HJF in the treatment of Sjogren's syndrome.
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