1.南京中医药大学 附属医院/江苏省中医院,江苏省中医创新制剂工程研究中心, 江苏省中药特色制剂融合创新中心,南京 210029
2.南京中医药大学 第一临床医学院,南京 210023
李晰然,在读硕士,从事中药药效物质基础及其作用机制研究,E-mail:1492280971@qq.com
刘顺,博士,主任中药师,从事中药药效物质基础及其作用机制研究,E-mail:liushun12@163.com
收稿:2024-06-12,
录用:2024-09-02,
网络出版:2024-08-30,
纸质出版:2025-04-05
移动端阅览
李晰然,陈梦娇,邹恺平等.基于16S rDNA测序探讨滋肾通关方对慢性非细菌性前列腺炎大鼠“肠-前列腺”轴的影响[J].中国实验方剂学杂志,2025,31(07):63-71.
LI Xiran,CHEN Mengjiao,ZOU Kaiping,et al.Effect of Zishen Tongguan Formula on "Gut-prostate" Axis of Rats with Chronic Non-bacterial Prostatitis Based on 16S rDNA Sequencing[J].Chinese Journal of Experimental Traditional Medical Formulae,2025,31(07):63-71.
李晰然,陈梦娇,邹恺平等.基于16S rDNA测序探讨滋肾通关方对慢性非细菌性前列腺炎大鼠“肠-前列腺”轴的影响[J].中国实验方剂学杂志,2025,31(07):63-71. DOI: 10.13422/j.cnki.syfjx.20250366.
LI Xiran,CHEN Mengjiao,ZOU Kaiping,et al.Effect of Zishen Tongguan Formula on "Gut-prostate" Axis of Rats with Chronic Non-bacterial Prostatitis Based on 16S rDNA Sequencing[J].Chinese Journal of Experimental Traditional Medical Formulae,2025,31(07):63-71. DOI: 10.13422/j.cnki.syfjx.20250366.
目的
2
基于“肠-前列腺”轴理论,通过检测炎症因子表达水平和慢性非细菌性前列腺炎(CNP)大鼠肠道菌群的组成结构,探究滋肾通关方及方中肉桂治疗CNP大鼠的作用与机制。
方法
2
42只SD大鼠随机挑选8只作为正常组,其余动物采用注射角叉菜胶的方法制备CNP模型,造模成功后将其中32大鼠随机分为模型组、宁泌泰胶囊组(0.50 g·kg
-1
)、滋肾通关方组(2.00 g·kg
-1
)、黄柏-知母药对组(2.00 g·kg
-1
),每组8只,给药组分别给予相应药液灌胃,正常组和模型组给予等量生理盐水灌胃,1次/d,连续给药14 d。收集大鼠前列腺组织并进行苏木素-伊红(HE)染色和马松(Masson)染色,观察各组大鼠前列腺组织病理变化。利用酶联免疫吸附测定法(ELISA)检测大鼠血清中白细胞介素-8(IL-8)、超敏C-反应蛋白(hs-CRP)、免疫球蛋白M(IgM)、分泌型IgA(sIgA)、诱导型一氧化氮合酶(iNOS)、转化生长因子-
β
1
(TGF-
β
1
)水平。利用16S rDNA测序分析给药前后肠道菌群变化。
结果
2
各给药组均可缓解CNP大鼠的炎症症状,提高抗炎因子的表达水平,降低促炎因子的表达水平,以滋肾通关方组最明显。与正常组比较,模型组大鼠IL-8、hs-CRP、sIgA、IgM、iNOS表达水平均显著增加(
P
<
0.01);与模型组比较,各个给药组上述炎症因子表达水平均显著降低(
P
<
0.01);与黄柏-知母药对组比较,滋肾通关方组TGF-
β
1
表达水平明显降低(
P
<
0.05),IgM表达水平显著增加(
P
<
0.01)。肠道菌群结果显示,与黄柏-知母药对组比较,在目水平上,滋肾通关方组可以显著降低条件致病菌拟杆菌目(Bacteroidales)、Acidaminococcales、红螺菌目(Rhodospirillales)、梭菌目(Clostridiales)、迷踪菌目(Elusimicrobiales)菌群的相对丰度(
P
<
0.01);在属水平上,显著降低致病菌毛螺菌属和拟杆菌属菌群的相对丰度(
P
<
0.01),显著增加有益菌瘤胃球菌属和乳酸杆菌属等菌群的相对丰度(
P
<
0.01)。
结论
2
滋肾通关方可降低肠道有害菌水平、提升肠道有益菌水平,并下调血清炎症因子表达,方中配伍的少量肉桂可能对滋肾通关方治疗CNP起到关键作用。
Objective
2
Based on the theory of "gut-prostate" axis, this study explored the effects and mechanisms of Zishen Tongguan formula and Cinnamomi Cortex in the formula in treating rats with chronic non-bacterial prostatitis(CNP) by detecting the levels of inflammatory factors, and the composition and structure of intestinal flora in CNP rats.
Methods
2
Eight out of 42 SD rats were randomly selected as the normal group, and the remaining rats were injected with carrageenan to prepare the CNP model. After successful modeling, 32 rats were randomly divided into the model group, Ningmitai capsule group(0.50 g·kg
-1
), Zishen Tongguan formula group(2.00 g·kg
-1
), and the Phellodendri Chinensis Cortex-Anemarrhenae Rhizoma pair group(PCC-AR group, 2.00 g·kg
-1
), with 8 rats in each group. The administered groups were given the corresponding medicinal solution by gavage, and the normal and model groups were intragastrically administered with an equal volume of normal saline, once a day for 14 consecutive days. The prostate tissues of rats were collected and subjected to hematoxylin-eosin(HE) staining and Masson staining to observe the pathological changes of the tissues in each group. Enzyme-linked immunosorbent assay(ELISA) was used to detect the levels of related inflammatory factors in rat serum, and 16S rDNA sequencing was used to analyze the abundance and diversity changes of gut microbiota before and after administration, and species difference analysis was performed.
Results
2
All the administered groups could alleviate the inflammatory symptoms of CNP rats, increase the expression levels of anti-inflammatory factors and decrease the expression levels of pro-inflammatory factors, with the most sIgnificant effect observed in the Zishen Tongguan formula group. Compared with the normal group, the expression levels of interleukin(IL)-8, hypersensitive C-reactive protein(hs-CRP), immunoglobulin(Ig)M, secretory IgA (sIgA), and inducible nitric oxide synthase(iNOS) were sIgnificantly increased in the model group(
P
<
0.01). Compared with the model group, the expression levels of the above inflammatory factors in all administered groups
were significantly reduced(
P
<
0.01). When compared with the PCC-AR group, the Zishen Tongguan formula group showed a significant decrease in transforming growth factor(TGF)-
β
1
expression level(
P
<
0.05) and a significant increase in IgM expression level(
P
<
0.01). The results of gut microbiota analysis showed that, compared with the PCC-AR group, at the order level, the Zishen Tongguan formula group significantly reduced the relative abundance of conditional pathogens such as Bacteroidales, Acidaminococcales, Rhodospirillales, Clostridiales, and Elusimicrobiales(
P
<
0.01). And at the genus level, the Zishen Tongguan formula group significantly decreased the relative abundance of pathogenic microbiota such as
Lachnospira
and
Bacteroides
(
P
<
0.01) and significantly increased the relative abundances of beneficial microbiota such as
Ruminococcus
and
Lactobacillus
(
P
<
0.01).
Conclusion
2
Zishen Tongguan formula can reduce the level of harmful intestinal bacteria, increase the level of beneficial intestinal bacteria, down-regulate the expression of serum inflammatory factors, and the small amount of Cinnamomi Cortex in the formula may play a key role in the treatment of CNP with this formula.
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