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Juzentaihoto is a herbal medicine with reported anti-inflammatory effects, and it is predicted to improve inflammation and insulin sensitivity within obesity. In the present study, juzentaihoto hot water extract (JTT) was administered to obese type 2 diabetic model mice (KKAy) for 56 days. In addition, the effects of JTT on the adipose tissue, glucose metabolism, and blood lipids were evaluated for examining its impact on insulin sensitivity and obesity. As a result of JTT administration, KKAy mice exhibited suppressed adipocyte hypertrophy, decreased the mRNA levels of tumor necrosis factor α, and increased the mRNA levels of adiponectin in epididymal fat tissue. In addition, fasting blood glucose levels, blood triglyceride, and total cholesterol decreased. In summary, these data indicated that JTT administration suppressed the production of inflammatory cytokines and increased adiponectin levels in the adipose tissue. Therefore, with improved insulin sensitivity, blood glucose, and lipid decreased.

Ulinastatin vaginal suppositories, used to prevent threatened premature delivery, are frequently used in hospitals. However, there is no established method for quantifying ulinastatin contained in suppositories. Therefore, we investigated a simple and efficient method for quantifying ulinastatin contained in suppositories. Our analytical method involved removal of the base; optimising the enzyme inhibition reaction time and enzyme reaction time; and measuring the absorbance. The modified method was reproducible, operation time was significantly shortened, and cost was reduced to approximately 1/17 of that of the previously reported method. This simple and rapid quantitative method could contribute to the improvement of quality control of ulinastatin vaginal suppositories as an extemporaneous hospital preparation.