The invention discloses an intestinal
flora marker and application thereof in diagnosis and treatment of
anxiety disorder. According to the present invention, the intestinal
flora marker comprises a specific strain Lacnospiraceae bacterium.1 of the
genus of Horsespirillum, Odorobacter splanchnicus, Coprococcus dexterous, and
Clostridium aldenense, and the intestinal
flora marker comprises a specific strain Lacnospiraceae bacterium.1 of the
genus of Horsespirillum, Odorobacter splanchnicus, Coprococcus dexterous, and
Clostridium aldenense, the ROC
curve analysis of the intestinal flora marker as a detection variable of
anxiety disorder has high specificity and sensitivity, so that the intestinal flora marker can be used as a detection marker to be applied to diagnosis of
anxiety disorder patients. The intestinal flora marker disclosed by the invention is used as a detection marker of
anxiety disorder, is completely noninvasive and is high in accuracy.