The incidence of depression is increasing year by year,seriously affecting people's work and life.With the continuous in-depth study of its pathogenesis,it is found that depression is closely related to intestinal flora.The imbalance of intestinal flora can cause central nervous system diseases through the microbial-brain-gut axis,which involves neurotransmitters,neuroendocrine,neurotrophic factors,inflammatory response and other mechanisms.This paper introduced intestinal flora and relevant regulatory factors related to various mechanisms of depression,listed experimental examples of intestinal flora imbalance leading to depression,and then summarized relevant studies on the anti-depression mechanism of traditional Chinese medicine through regulation of intestinal flora according to the mechanism of action,among which the regulation of microbial metabolism,inflammatory factors and neurotransmitters was mainly studied.The conclusion is expected to provide some reference for the study of anti-depression effect of Chinese medicine.

The incidence of depression is increasing year by year,seriously affecting people's work and life.With the continuous in-depth study of its pathogenesis,it is found that depression is closely related to intestinal flora.The imbalance of intestinal flora can cause central nervous system diseases through the microbial-brain-gut axis,which involves neurotransmitters,neuroendocrine,neurotrophic factors,inflammatory response and other mechanisms.This paper introduced intestinal flora and relevant regulatory factors related to various mechanisms of depression,listed experimental examples of intestinal flora imbalance leading to depression,and then summarized relevant studies on the anti-depression mechanism of traditional Chinese medicine through regulation of intestinal flora according to the mechanism of action,among which the regulation of microbial metabolism,inflammatory factors and neurotransmitters was mainly studied.The conclusion is expected to provide some reference for the study of anti-depression effect of Chinese medicine.

In order to develop agents with superior chemopreventive and chemotherapeutic properties against hepatocellular carcinomas, mitochondria-targeted hydroxycinnamic acids (MitoHCAs) were synthesized by conjugation with a triphenylphosphonium cation. These synthetic compounds were evaluated for their antioxidant activities in hepatic mitochondria, including against OHand ROOinduced lipid peroxidation. HOproduction was decreased significantly by increasing glutathione peroxidase and catalase activities. In addition, cell proliferation data from three cell lines (HepG2, L02 and WI38) indicated that the MitoHCAs were selective for cancer cells. Interestingly, the MitoHCAs both with or without Catriggered mitochondrial dysfunction by inducing mitochondrial swelling, collapsing the mitochondrial membrane potential and causing cytochromerelease. In particular, an inhibitor of the mitochondrial permeability transition pore (mPTP), cyclosporin A, attenuated mitochondrial damage and cell apoptosis, indicating that mPTP may be involved in the antiproliferative activity of MitoHCAs. Further studies focused on structural optimization of these compounds are onging.