Influence of biological treatments on intestinal microbiota of psoriasis patients

To the Editor:Psoriasis is a common,chronic inflammatory skin disease occurring worldwide and presenting at any age.[1]Biologics are the most important therapeutic advances in psoriasis treatment.[2]With the development of 16S rRNA sequencing technology,the association between psoriasis and intestinal flora has been gradually revealed.Some bacteria secrete short-chain fatty acids(SCFAs)with anti-inflammatory properties,serving as active microbial metabolites that regulate the function of immune cells in the intestine and other tissues.[3]However,the impact of biological treatment on gut microbiota and related functional changes in psoriasis patients remains unclear.Our study aimed to explore the effects of biological treatments on the intestinal microbiota of psoriasis patients.