Amomum villosum Lour. alleviates pre-eclampsia by inducing enrichment of Bifidobacterium bifidum through vanillic acid to inhibit placental ferroptosis

Amomum villosum Lour. (AVL), a traditional Chinese medicine, is widely used to pregnancy-related vomiting and prevent miscarriage. Pre-eclampsia (PE) is a severe pregnancy syndrome. Recent studies have demonstrated interactions between PE and the digestive system. However, it is uncertain that AVL against PE was associated with the gut.