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Effects of Fuscoporia obliqua on Postprandial Glucose Excursion and Endothelial Dysfunction in Type 2 Diabetic Patients

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Journal of Traditional Chinese Medicine 2008年第1期28卷 49-57页

作者： Toshihiro Maenaka masami oshima Yuka Itokawa Takashi Masubuchi Yasuyuki Takagi Jung-Sook Choi Torao Ishida Yeunhwa Gu Graduate School of Health Science Suzuka University of Medical ScienceJapan Gyeongdo provincial college Kyoungbook Korea Hi-tech Research Center Suzuka University of Medical Science Japan Graduate School of Health Science Suzuka University of Medical Science Japan Hi-tech Research Center Suzuka University of Medical Science Japan

Postprandial hyperglycemia has been reported to elicit endothelial dysfunction and provoke future cardiovascular complications. A reduction of postprandial blood glucose levels by the glucosidase inhibitor Fuscoporia obliqua was associated with a risk reduction of cardiovascular complications, but the effects of Fuscoporia obliqua on endothelial function have never been elucidated. This study is aimed to assess the efficacy of Fuscoporia obliqua on postprandial metabolic parameters and endothelial function in type 2 diabetic patients. Postprandial peak glucose (14.47±1.27 vs. 8.50±0.53 mmol/liter), plasma glucose excursion (PPGE), and change in the area under the curve (AUC) glucose after a single loading of test meal (total 450 kcal; protein 15.3%; fat 32.3%; carbohydrate 51.4%) were significantly higher in the diet-treated type 2 diabetic patients (n=14) than the age-and sex-matched controls (n=12). The peak forearm blood flow response and total reactive hyperemic flow (flow debt repayment) during reactive hyperemia, indices of resistance artery endothelial function on strain-gauge plethysmography, were unchanged before and after meal loading in the controls. But those of the diabetics were significantly decreased 120 and 240 min after the test meal. A prior administration of Fuscoporia obliqua decreased postprandial peak glucose, PPGE, and AUC glucose. The peak forearm blood flow and flow debt repayment were inversely well correlated with peak glucose, PPGE, and AUC glucose, but not with AUC insulin or the other lipid parameters. Even a single loading of the test meal was shown to impair the endothelial function in type 2 diabetic patients, and the postprandial endothelial dysfunction was improved by a prior use of Fuscoporia obliqua. Fuscoporia obliqua might reduce macrovascular complication by avoiding endothelial injury in postprandial hyperglycemic status.

关键词： Fuscoporia oblique Glucose excursion and Endothelial Dysfunction Type 2 Diabetic Patients Insulin

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Effects of K. Lysolecithin on Blood Levels of Monoamines in Mice

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Journal of Traditional Chinese Medicine 2007年第3期27卷 212-219页

作者： Yuka Itokwa Aki Kozu Takashi Nakamura Takashi Masubuchi masami oshima Kwang-Ho Cho Jung-Sook Choi Toshihiro Miura Torao Ishida Yeunhwa Gu Suzuka Univercity of Medical Science Graduate School of Health Science Society of Preventive and Alternative Medicine Department of Radiological Science Catholic University of Deagu College of Health Science Gyeongdo Provincial College

In this research, Lysolecithin-a substance made with 100% natural ingredients - was given to ICR mice as medication to measure its periodic effect on the noradrenalin (NA), dopamine (DA), and serotonin (5-HT) levels of the brain. Both ICR and SAM mice were separated into two groups - control group and Lysolecithin (K. Lysolecithin: hydrolytic lysolecithin) medicated group, and given 1-week preparation period. The K. Lysolecithin group was given 500mg/kg of K. Lysolecithin at 0.2mL per dosage for 4 weeks, and the control group was given the same amount of dosage of water during the same period. NA, DA and 5-HT concentrations were measured from the blood before medication and 8 weeks / 12 weeks / 16 weeks after the first medication. For the SAM mice, 8 weeks after they were medicated with K .Lysolecithin, Morris Water Maze Test was conducted for 7 consecutive days and then the concentrations were measured by drawing blood from the heart. The K. Lysolecithin medicated group showed a tendency to have a statistically significant higher concentrations of 5-HT and NA in the blood. Also, periodic examination showed that the monoamine levels were highest in the 12th week and declined thereafter.

关键词： K. Lysolecithin Serotonin Noradrenalin Dopamine Alzheimer's Syndrome

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