Ferroptosis is a unique regulated form of cell death that is distinct from apoptosis, necrosis, and other well-characterized regulated cell death types, and plays an important role in the occurrence and development of chronic metabolic diseases, including diabetes, hypertension, hyperlipidemia, and non-alcoholic steatohepatitis. Recently, increasing evidence has supported traditional Chinese medicine (TCM) as a new hot spot for the treatment of chronic metabolic diseases by mediating ferroptosis. Unfortunately, few systematic reviews have described the importance of TCM in treating chronic metabolic diseases through the ferroptosis pathway. In the current review, the mechanism of ferroptosis and the roles of ferroptosis in chronic metabolic diseases are summarized. Additionally, this review illustrates that the regulation of ferroptosis by TCM could be an effective approach for treating chronic metabolic diseases based on experimental evidence and clinical application. In summary, this work will improve the understanding of ferroptosis and the ability of TCM to regulate ferroptosis in chronic metabolic diseases, thereby promoting the development and application of natural TCM.

Objective To explore the distribution of the liquid food in the stomach of patients with postprandial distress syndrome (PDS)-predominated functional dyspepsia (FD)and the mechanism of its gastric dynamic dysfunction.Methods Fifty-two patients with PDS and 18 healthy volunteers underwent gastric emptying examination with ultrasound scanner provided.The proximal and distal gastric area and volume,area and volume ratio of proximal and distal gastric as well as emptying rate of proximal and distal gastric were calculated at fasting,maximum satiety,30 min,60 min,90 min and 120 min after meal. Student′s t test andχ2 test were performed for statistical analysis.Results Proximal gastric volume of PDS group at the time of fasting and 120 min after meal were (9.06±7.88)and (24.72±24.02)cm3 ,which were larger than those of healthy control group ((5 .96 ± 2.13 )cm3 ,(19.48 ± 12.32 )cm3 ),and the differences were statistically significant (t=-1 .637 and -0.875 ,both P <0.05).Ratio of proximal and distal gastric area at maximum satiety in PDS group was 1 .63±0.42 and that in healthy control group was 2.33±0.63,and the difference was statistically significant (t =5 .044,P <0.05 ).Ratio of proximal and
distal gastric volume in PDS group and healthy group at fasting was 0.60 ± 0.38 and 0.46 ± 0.19, respectively,that at maximum satiety was in PDS group and healthy group 0.91 ±0.27,1 .30 ±0.48, respectively,and the differences were statistically significant (t = - 1 .505 and 3.970,both P <0.05). The emptying rates of proximal stomach of PDS group at 30 min and 90 min postprandial were (28.10 ± 25 .03)% and (68.80±16.14)%,respectively,those of healthy control group were (34.97 ±14.41 )%and (75 .86 ±9.86)%,and the differences were statistically significant (t =1 .087 and 1 .718,both P <0.05).There was no statistically significant difference in emptying rate of distal stomach between two groups (all P > 0.05 ).Conclusions The volume of distal stomach was larger than that of proximal stomach in PDS patients at maximum satiety in liquid food distribution,which may be the cause of decreasing emptying rate of proximal stomach.And proximal stomach dominated gastric motility in PDS patients.