肛周脓肿患者手术前后与健康人肠道菌群的差异性分析

尹和宅; 沈丽冬; 袁梅; 王启; 洪中华

doi:10.16766/j.cnki.issn.1674-4152.003331

肛周脓肿患者手术前后与健康人肠道菌群的差异性分析

doi: 10.16766/j.cnki.issn.1674-4152.003331

1.
浙江中医药大学附属嘉兴中医院肛肠科，浙江嘉兴 314001
2.
浙江中医药大学附属嘉兴中医院检验科

基金项目:

浙江省科技厅公益项目 LGF22H270005

浙江省医药卫生科技计划项目 2022KY392

浙江省中医药科技计划科研基金项目 2021ZB287

浙江省中医药科技计划科研基金项目 2022ZB349

浙江省嘉兴市科技局科研项目 2021AD30136

浙江省嘉兴市科技局科研项目 2022AD30111

浙江省嘉兴市科技局科研项目 2022AD10012

详细信息

通讯作者:
沈丽冬，E-mail：jxsld2006@163.com

中图分类号: R657.15 R37
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- 被引次数: 0
出版历程
- 收稿日期: 2023-01-19
- 网络出版日期: 2024-03-09

Analysis of the difference of intestinal flora between patients with perianal abscess before and after surgery and healthy people

1.
Department of Anorectal, Jiaxing Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medicine University, Jiaxing, Zhejiang 314001, China

摘要

摘要: 目的通过16S rDNA基因测序检测肛周脓肿患者手术前后的肠道菌群分布，探讨其与健康人的菌群分布是否存在差异。方法收集2022年8—11月期间在浙江中医药大学附属嘉兴中医院肛肠科就诊的15名肛周脓肿患者(观察组)及15名健康体检者(对照组)的临床资料，提取其粪便DNA，通过PCR扩增和16S rDNA基因测序，进行Alpha多样性、Beta多样性等数据分析，并筛选肛周脓肿可能的主要标志菌群。结果 Alpha多样性分析表明，与对照组相比，观察组术前的Chao1和Observed_species指数升高，术后的Shannon和Simpson指数降低，差异均有统计学意义(P < 0.05)；与术前比较，观察组术后的Chao1、Shannon、Simpson、Observed_species指数均降低(P < 0.05)。厚壁菌门、变形菌门、放线菌门和拟杆菌门的相对丰度在对照组、观察组术前、术后之间差异有统计学意义(P < 0.05)，与对照组相比，观察组术前放线菌门的相对丰度降低(P < 0.05)，术后变形菌门的相对丰度增加(P < 0.05)；与术前比较，观察组术后变形菌门的相对丰度增加(P < 0.05)。筛选肛周脓肿主要标志菌群，ROC曲线分析显示，嗜胆菌属的AUC最大(AUC=0.831)。结论肛周脓肿患者手术前后与健康人肠道菌群存在显著差异，手术治疗后肠道菌群丰度发生显著变化，嗜胆菌属可能是肛周脓肿的主要标志菌群。
- 肛周脓肿 /
- 肠道菌群 /
- 16S rDNA测序
Abstract: Objective The intestinal flora distribution of perianal abscess patients before and after surgery was detected by 16S rDNA gene sequencing to explore whether the flora distribution was different from that of healthy people. Methods Clinical data of 15 patients with perianal abscess (observation group) and 15 healthy individuals (control group) who visited the Department of Anorectal of Jiaxing Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medicine University between August and November 2022 were collected, their fecal DNA was extracted, and their data including alpha diversity, beta diversity were analyzed by PCR amplification and 16S rDNA gene sequencing, and possible major hallmark flora of perianal abscess were screened. Results Alpha diversity analysis showed that compared to the control group, the observation group had preoperative levels of Chao1 and Observed_species increased, while the postoperative Shannon and Simpson indices decreased, with significant differences (P < 0.05). Compared with operative, postoperative Chao1, Shannon, Simpson, Observed_species in the observation decreased (P < 0.05). The relative abundance of Bacillota, Pseudomonadota, Actinomycetota and Bacteroidota was significantly different between the control group and the observation group before and after surgery (P < 0.05). Compared with the control group, the relative abundance of Actinomycetota in the observation group before surgery was reduced (P < 0.05), and the relative abundance of Pseudomonadota after surgery was increased (P < 0.05). Compared with operative, the relative abundance of Pseudomonadota in the observation increased after operation (P < 0.05). The main marker flora of perianal abscess was screened, and receiver operating characteristic analysis showed that Bilophila wadsworthia had the max AUC (AUC=0.831). Conclusion The intestinal flora of patients with perianal abscess differs significantly from that of healthy individuals before and after surgery, and the abundance of intestinal flora changes significantly after surgical treatment. Bilophila may be a major marker of perianal abscess.
- Perianal abscess /
- Intestinal flora /
- 16S rDNA gene sequencing

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图 1 2组受试者肠道微生物群主坐标分析(PCoA)

Figure 1. Principal Coordinate Analysis (PCoA) of gut microbiota in two groups

下载: 全尺寸图片幻灯片

图 2 2组受试者门水平和属水平的主要细菌比较

注：A为门水平细菌相对丰富比较，B为属水平细菌相对丰富比较。

Figure 2. Comparison of main bacteria at phylum level and genus level in two groups of subjects

下载: 全尺寸图片幻灯片

图 3 肛周脓肿患者属水平10个不同菌群的ROC曲线分析

Figure 3. ROC curve analysis of 10 different bacterial groups in patients with perianal abscess

下载: 全尺寸图片幻灯片

表 1 2组受试者肠道微生物群多样性的Alpha指数比较[M(P₂₅, P₇₅)]

Table 1. Alpha index comparison of intestinal microbiota diversity between two groups[M(P₂₅, P₇₅)]

组别	时间	例数	Chao1指数	Shannon指数	Simpson指数	Observed_species指数
观察组	术前	15	80.00(59.13, 104.63)	4.57(4.36, 4.80)	0.92(0.90, 0.93)	80.00(59.00, 98.50)
	术后	15	34.00(24.00, 60.58)	2.40(2.05, 3.09)	0.66(0.55, 0.81)	34.00(24.00, 59.50)
对照组		15	54.00(42.80, 72.13)	4.51(3.47, 4.79)	0.93(0.87, 0.94)	54.00(42.50, 72.00)
Z值^a			2.556	3.011	2.414	2.544
P值^a			0.011	0.003	0.016	0.011
Z值^b			2.448	0.768	0.042	2.386
P值^b			0.013	0.461	0.967	0.016
Z值^c			1.722	3.609	3.553	1.931
P值^c			0.089	< 0.001	< 0.001	0.056
注：^a为观察组术前与术后比较；^b为观察组术前与对照组比较；^c为观察组术后与对照组比较。

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表 2 2组受试者肠道门水平细菌相对丰度比较[M(P₂₅, P₇₅)]

Table 2. Comparison of relative abundance of bacteria at intestinal portal level between the two groups[M(P₂₅, P₇₅)]

组别	时间	例数	厚壁菌门	变形菌门	放线菌门	拟杆菌门
观察组	术前	15	59.55(45.51, 76.81)	12.38(4.22, 27.84)	2.62(1.20, 4.60)	8.43(3.40, 14.41)
	术后	15	16.34(9.63, 29.89)	73.17(45.83, 82.58)	1.31(0.23, 6.35)	0.00(0.00, 2.78)
对照组		15	56.72(27.75, 69.05)	13.17(6.81, 22.88)	13.79(6.50, 21.32)	5.25(2.31, 16.13)
Z值^a			2.779	2.783	0.454	2.013
P值^a			0.005	0.005	0.651	0.035
Z值^b			1.016	0.021	2.924	0.643
P值^b			0.325	0.001	0.003	0.539
Z值^c			3.049	4.086	3.090	2.544
P值^c			0.002	< 0.001	0.001	0.011
注：^a为观察组术前与术后比较；^b为观察组术前与对照组比较；^c为观察组术后与对照组比较。

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表 3 2组受试者肠道属水平细菌相对丰度比较[M(P₂₅, P₇₅)]

Table 3. Comparison of the relative abundance of intestinal bacteria at the genus level between the two groups[M(P₂₅, P₇₅)]

组别	时间	例数	大肠杆菌属	伯克霍尔德菌属	双歧杆菌属	粪杆菌属	巨单胞菌属
观察组	术前	15	1.48(0.49, 9.00)	1.58(0.84, 4.67)	1.00(0.20, 18.03)	11.91(0.20, 18.03)	0.00(0.00, 4.72)
	术后	15	20.21(0.06, 39.35)	9.27(3.83, 21.79)	0.06(0.00, 5.90)	0.00(0.00, 0.08)	0.00(0.00, 0.00)
对照组		15	1.44(0.25, 8.23)	1.74(1.15, 5.46)	8.26(3.53, 20.52)	4.82(0.29, 13.38)	0.00(0.00, 9.33)
Z值^a			0.852	2.669	0.031	3.061	1.048
P值^a			0.391	0.010	0.982	< 0.001	0.301
Z值^b			0.333	0.477	2.843	0.457	0.619
P值^b			0.744	0.653	0.004	0.653	0.595
Z值^c			1.141	2.675	1.934	3.469	2.225
P值^c			0.267	0.007	0.081	< 0.001	0.074

组别	时间	例数	拟杆菌属	链球菌属		肠球菌属	瘤胃球菌属
观察组	术前	15	3.31(1.80, 8.58)	0.45(0.12, 1.47)		0.00(0.00, 0.00)	0.79(0.12, 2.61)
	术后	15	0.00(0.00, 1.40)	1.69(0.34, 6.43)		5.32(0.60, 15.52)	0.00(0.00, 0.00)
对照组		15	2.77(0.97, 8.66)	0.36(0.03, 1.10)		0.00(0.00, 0.00)	0.75(0.11, 1.67)
Z值^a			2.001	1.538		3.296	3.140
P值^a			0.048	0.124		< 0.001	< 0.001
Z值^b			0.394	0.376		1.002	0.415
P值^b			0.713	0.713		0.775	0.683
Z值^c			2.553	1.812		4.727	3.525
P值^c			0.013	0.074		< 0.001	0.001
注：^a为观察组术前与术后比较；^b为观察组术前与对照组比较；^c为观察组术后与对照组比较。

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