1.637000 四川 南充,川北医学院:基础医学与法医学院病原生物学教研室
2.400037 重庆,陆军军医大学(第三军医大学)第二附属医院消化内科
3.637000 四川 南充,川北医学院:附属医院消化内科
Received:10 February 2022,
Revised:2022-03-06,
Published:15 June 2022
移动端阅览
Zhen LI, Guodong YANG, Bo TANG, et al. Changes in intestinal fungal diversity and compositions in patients with cholestatic liver disease[J]. Journal of Army Medical University, 2022, 44(11): 1162-1168.
Zhen LI, Guodong YANG, Bo TANG, et al. Changes in intestinal fungal diversity and compositions in patients with cholestatic liver disease[J]. Journal of Army Medical University, 2022, 44(11): 1162-1168. DOI: 10.16016/j.2097-0927.202202023.
目的
2
分析胆汁淤积性肝病患者和健康对照人群的肠道真菌菌群多样性及构成改变。
方法
2
收集胆汁淤积性肝病患者(
n
=20)和健康人群对照者(
n
=22)的新鲜粪便,采用ITS2 DNA测序测定肠道真菌,运用生物信息学方法分析两组间真菌菌群多样性、结构、功能特征之间的差异,以及肠道真菌与临床参数间的相关性。
结果
2
两组年龄、性别构成、吸烟等均无统计学差异(
P
>
0.05)。胆汁淤积性肝病患者组与健康人群对照组相比血清学指标均显著升高(
P
<
0.05);两组间肠道真菌Alpha多样性无显著差异(
P
>
0.05);Beta多样性有显著差异(
P
<
0.01);胆汁淤积性肝病患者组
Myceliophthora
相对丰度增加(
P
<
0.01),
Diutina
相对丰度降低(
P
<
0.01);LEfSe分析结果表明胆汁淤积性肝病患者组中
Myceliophthora
显著富集,且腐生-共生(Saprotroph-Symbiotroph) 菌的丰度显著低于健康人群对照组(
P
<
0.05);Spearman相关系数分析结果显示
Myceliophthora
与ALT(
P
<
0.05)、AST、ALP、GGT、TBIL、DBIL(
P
<
0.01)均呈正相关。
结论
2
胆汁淤积性肝病患者与健康人群相比肠道真菌菌群构成有特征性改变,
Myceliophthora
与胆汁淤积性肝病患者疾病严重程度密切相关。
Objective
2
To analyze the changes in intestinal fungi and compositions in patients with cholestatic liver disease from healthy individuals.
Methods
2
Fresh feces from 20 patients with cholestatic liver disease and 22 healthy individuals were collected. The intestinal fungi were determined by ITS2 DNA sequencing
and the differences of fungal flora diversity
structure and functional characteristics between the 2 groups were analyzed by bioinformatics methods
and the correlation between intestinal fungi and clinical parameters was analyzed.
Results
2
There were no significant differences in age
sex composition and smoking between the 2 groups (
P
>
0.05). The serological indexes were significantly higher in the patients with cholestatic liver disease than the healthy controls (
P
<
0.05). No significant difference was seen in the Alpha diversity of intestinal fungi between the 2 groups (
P
>
0.05)
but significant differences were observed in Beta diversity (
P
<
0.01). The relative abundance of
Myceliophthora
was increased (
P
<
0.01) and that of
Diutina
was decreased (
P
<
0.01) in the patients with cholestatic liver disease. LEfSe analysis showed that
Myceliophthora
was significantly enriched in the patients
and the abundance of Saprotroph-Symbiotroph was significantly lower in the patients than the healthy controls. Spearman correlation coefficient analysis showed that
Myceliophthora
was positively correlated with alanine transaminase (ALT
P
<
0.05)
and aspartate transaminase (AST)
alkaline phosphatase (ALP)
gamma-glutamyl transferase (GGT) and total bilirubin (TBIL) (
P
<
0.01).
Conclusion
2
Characteristic changes are seen in intestinal fungal compositions between the patients with cholestatic liver disease and the healthy controls.
Myceliophthora
is closely associated with the severity of the disease.
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