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Ruixin Hu, Yanting Yuan, Chaolong Liu, Ji Zhou, Lixia Ji, and Guohui Jiang

In patients with type 2 diabetes mellitus (T2DM), the intestinal flora is out of balance and accompanied by leaky gut. The flora is characterized by an increase in mucus-degrading bacteria and a decrease in fiber-degrading bacteria. Short-chain fatty acids (SCFAs), as the major fiber-degrading bacteria fermentation, not only ameliorate the leaky gut, but also activate GPR43 to increase the mass of functional pancreatic β-cells and exert anti-inflammation effect. At present, the gut microbiota is considered as the potential target for anti-diabetes drugs, and how to reverse the imbalance of gut microbiota has become a therapeutic strategy for T2DM. This review briefly summarizes the drugs or compounds that have direct or potential therapeutic effects on T2DM by modulating the gut microbiota, including biguanides, isoquinoline alkaloids, stilbene and C7N-aminocyclic alcohols.

Open access

Fang Lv, Xiaoling Cai, Chu Lin, Tianpei Hong, Xiaomei Zhang, Zhufeng Wang, Huifang Xing, Guizhi Zong, Juming Lu, Xiaohui Guo, Jing Wu, Leili Gao, Xianghai Zhou, Xueyao Han, and Ji Linong

Aims: To estimate the sex differences in the prevalence of overweight and obesity aged 20-89 in Chinese patients with type 2 diabetes (T2D).

Methods: 811,264 patients with T2D from six hospital-based, cross-sectional studies, and 46,053 subjects from general population were included in our analysis. Prevalence of underweight, overweight, obesity were calculated in each sex.

Results: In patients with T2D, the standardized prevalence of underweight (BMI<18.5 kg/m2), overweight (24 kg/m2 ≤ BMI<28 kg/m2), and general obesity (BMI ≥28 kg/m2) were 2.2%, 43.2%, and 11.6%, respectively. Similar trend patterns of the prevalence of underweight and overweight were observed in general and T2D population, in males and females with T2D (all p for trend<0.01). In patients with T2D, patients at younger age and older age were more likely to be underweight. The prevalence of overweight increased first, then stabilized or decreased with age. However, different trend patterns of the prevalence of obesity in males and females were found. In males, the prevalence of obesity decreased first, and then stabilized after 60 years of age. In females, the prevalence of obesity decreased first, then increased after 50 years of age. In general population, the prevalence of obesity increased with age in females, while, the trend of prevalence of obesity with age in males was not obvious.

Conclusion: Different trends in the prevalence of obesity with age in different sex were found in Chinese patients with T2D.