Diacylated anthocyanins from purple sweet potato (Ipomoeabatatas L.) attenuate hyperglycemia and hyperuricemia in mice induced by a high-fructose/high-fat diet / 浙江大学学报（英文版）（B辑：生物医学和生物技术）

Studies have shown that targeting xanthine oxidase (XO) can be a feasible treatment for fructose-induced hyperuricemia and hyperglycemia. This study aimed to evaluate the dual regulatory effects and molecular mechanisms of diacylated anthocyanins from purple sweet potato (diacylated AF-PSPs) on hyperglycemia and hyperuricemia induced by a high-fructose/high-fat diet. The body weight, organ index, serum biochemical indexes, and liver antioxidant indexes of mice were measured, and the kidneys were observed in pathological sections. The relative expression levels of messenger RNAs (mRNAs) of fructose metabolism pathway enzymes in kidney were detected by fluorescent real-time quantitative polymerase chain (qPCR) reaction technique, and the expression of renal transporter protein and inflammatory factor pathway protein was determined by immunohistochemistry (IHC) technique. Results showed that diacylated AF-PSPs alleviated hyperuricemia in mice, and that this effect might be related to the regulation of liver XO activity, lipid accumulation, and relevant renal transporters. Diacylated AF-PSPs reduced body weight and relieved lipid metabolism disorder, liver lipid accumulation, and liver oxidative stress, thereby enhancing insulin utilization and sensitivity, lowering blood sugar, and reducing hyperglycemia in mice. Also, diacylated AF-PSPs restored mRNA levels related to renal fructose metabolism, and reduced kidney injury and inflammation. This study provided experimental evidence for the mechanisms of dual regulation of blood glucose and uric acid (UA) by diacylated AF-PSPs and their utilization as functional foods in the management of metabolic syndrome.

Inhibitory Effect of Chenodeoxycholic Acid-verticinone Ester on Tumor Growth of H22-bearing Mice / 医药导报

Objective To evaluate the antitumor effects of chenodeoxycholic acid-verticinone ester ( CDCA-Ver ) on tumor growth and immune system of H22-bearing mice. Methods Antitumor activity against a solid tumor mass was evaluated in Kunming mice. H22 cells were transferred into the abdomen cavity of Kunming mice. H22 cells were inoculated through subcutaneous injection at the right armpit of the mouse to establish a solid tumor model. At 24 h after H22 tumor cells inoculation, 40 tumor-bearing Kunming mice were randomly divided into 4 groups according to random number table ( n=10 each group):model control group, cyclophosphamide ( CTX) group, intraperitoneal CDCA-Ver injection group and intravenous CDCA-Ver injection group. In model control group, sterile 0. 9% sodium chloride solution (10 mL·kg-1 ) was intraperitoneally injected once daily. In CTX group and intraperitoneal CDCA-Ver injection group, CTX (20 mg·kg-1 ) and CDCA-Ver (20 mg·kg-1 ) was intraperitoneally injected once daily, respectively. In intravenous CDCA-Ver injection group, CDCA-Ver ( 20 mg · kg-1 ) was injected through tail vein once daily. CDCA-Ver, CTX and NS were injected into the mice of the experimental groups once daily for 10 days, respectively. The dose volume was 0. 1 mL · ( 10 g )-1 body weight. The positive control drug was cyclophosphamide. Ten mice were treated with 20 mg · kg-1 CDCA-Ver through intravenous injection ( i. v. ) . Ten mice were treated with 20 mg·kg-1 CDCA-Ver through intraperitoneal injection. The thymus and spleen indices and the tumor inhibition rate were assessed, and histopathological examination with haematoxylin and eosin ( H&E) staining was carried out to evaluate the antitumor effects of CDCA-Ver. Results CDCA-Ver ( ivor ip) suppressed the growth of solid tumor in H22-bearing mice. The inhibition rate was 48. 3% at the dose of 20 mg·kg-1 CDCA-Ver (ip). There was no significant difference between CDCA-Ver (ip) and CTX treated group (P<0. 05). Compared with the control, the weight of thymus and spleen of CDCA-Ver (ip) treated group was not obviously changed. But a significant weight loss of thymus and spleen in CTX group was observed, which was attributed to the immune suppression from CTX. The thymus and spleen indices in the CTX-treated mice were significantly lower than those of the control group (P<0. 01). We further conducted histopathological examination to confirm the results. The immune system was not suppressed by CDCA-Ver ( ip ) in tumor-bearing animals. The low toxicity of CDCA-Ver was an outstanding advantage for the development of newly anticancer drug. Conclusion CDCA-Ver treatment can significantly inhibit tumor growth in mice.

Exploratory analysis about neuroprotection after ischemic stroke / 中华中医药杂志

To mitigate penumbra injury is the key factor in the treatment ofischemic stroke.Blood reflow and neuroprotection against time are premise to achieve this.Due to time window, thrombolysis rate is low(less than 5% in developed country).However, all neuroprotectants haven't been demonstrated to be effective in human, till now.Based on guidance ofwholism concept ofTCM and analysis ofrelative studies in western medicine.We found that functional status ofnon-ischemic areas can impact on injury degree offocal ischemia.One ofthe reasons that lead to failure in neuroprotective studies may be without considering this impaction.We put forward that non-ischemic areas can impact on the injury degree ofischemic area through the complex neuronal network, and effective regulating the functional status ofnon-ischemic areas is one ofthe key factors which can ameliorate focal ischemic injury.

Re-analysis of disease location, pathogenesis and treatment of ischemic stroke / 中华中医药杂志

Based on fundamental theory, literatures of TCM and clinical practice, we have found that there are some errors in the theory of stroke. We put forward several views on it: Firstly, the key reason of stroke is the hidden pathogenic factor which is phlegm and stasis, but not wind and fire. Secondly, the production of wind is due to the liver-blood injury caused by phlegm and stasis; the production of f ire is due to whether the liver-blood injury caused by phlegm and stasis or the f ire stagnated by phlegm and stasis in pericardium. Thirdly, the disease location of stroke is in the level of spirit, not in channels and collaterals. Liver soul injury leads to paralysis and aphemia. Lung soul injury leads to numbness. Kidney will injury leads to sensory aphasia. Pericardium invaded by phlegm and stasis, mind disorder will exists. Fourthly, spirit injury is a def icient syndrome, and supplementing blood and qi is the key of treatment, and expelling phlegm and stasis, balancing yin and yang are also needed. The main treatment principles of liver soul injury, lung soul injury, kidney will injury and pericardium injury are tonifying blood, cultivating qi, replenishing essence and nourishing both qi and blood respectively.