• Korean Journal of Pharmacognosy
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• v.32 no.3 s.126
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• pp.248-252
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• 2001

The present study was undertaken to elucidate the hypoglycemic effect and inhibitory effect of Cudrania tricuspidata root bark on aldose reductase activity. C. tricuspidata MeOH ext. 1,000 mg/kg showed a significant blood glucose lowering effect on alloxan-induced hyperglycemic rats and increasing body weight. C. tricuspidata MeOH ext. showed a potent inhibitory effect on bovine lens aldose reductase.

• Biomolecules & Therapeutics
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• v.12 no.2
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• pp.74-78
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• 2004

Paecilomyces tenuipes, a caterpillar fungus, contains many health-promoting ingredients. Recent reports indicate that consumption of P. tenuipes helps reducing blood sugar content for diabetes. Mechanism for reduction in the circulatory sugar content, however, still remains least understood. Methanolic extraction of P. tenuipes (MPT) was prepared and acetoxyscirpendiol (ASD) was subsequently purified limn MPT. Glucose transporter-1 (GLUT-1) was expressed in the Xenopus oocytes and the effect of MPT or ASD on the expressed GLUT-1 was analyzed according to the uptake of 2-dideoxy-D-glucose (2-DOG). MPT was shown to inhibit GLUT-1 activity significant1y compared to the non-treated control. In the presence of ASD and its derivatives, GLUT-1 activity was greatly inhibited in a dose-dependent manner. Among ASD and its derivatives, AS-1 showed most significant inhibition. Taken together, these results strongly indicate that ASD in P. tenuipes may serve as a functional substance in lowering blood sugar in the circulatory system. ASD and its derivatives can be utilized as inhibitors of GLUT-1.

• Biomedical Science Letters
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• v.7 no.1
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• pp.7-15
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• 2001

Although extracorporeal circulation (ECC) has been routinely used for cardiovascular surgery, hyperoxemia during ECC may produce oxygen toxicity and cellular injury. This study was performed to investigate the clinical influences of hyperoxemic ECC during cardiovascular operation. 40 adult patients scheduled for elective cardiovascular surgery were classified into normoxemic (arterial oxygen tension: 115 mmHg, n＝20) and hyperoxemic (arterial oxygen tension: 380 mmHg, n＝20) ECC. At preoperative and postoperative period, total leukocyte and neutrophil counts, platelet counts, iron, glucose, aspartate aminotransferase (AST), alanine aminotransferase (ALT), blood urea nitrogen (BUN), and creatinine in peripheral arterial blood, malondialdehyde (MDA) and troponin-T concentration (TnT) in coronary sinus blood, pulmonary vascular resistance (PVR), and postoperative blood loss volume (BLS) were measured and compared between groups. Hyperoxemic group had postoperatively higher total leukocyte and neutrophil counts, MDA, TnT, PVR total BLS, iron, glucose, AST, ALT, BUN, and creatinine than normoxemic group (p<0.05).0 conclusion, hyperoxemic ECC results in greater inflammatory response and oxidative damaging effects on the heart lung, liver and kidney, probably being adverse to postoperative patient recovery. For reducing these deleterious effects and improving postoperative outcomes, management lowering oxygen tension during ECC is recommended.

• Korean journal of food and cookery science
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• v.13 no.1
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• pp.47-55
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• 1997

The hypoglycemic and hypotensive effects of Polygonatum odoratum in non-insulin dependent diabetes metlitus (NIDDM) patients were investigated in this study. Sixty five NIDDM patients were divided into two groups: hospital diet (HD), Polygonatum odorat um diet (PD). HD group was provided with the diabetic diet used in a hospital and PD group consumed the Polygonatum odoratum added to the HD. The index of obesity, the level of fasting blood pressure (systolic and diastolic), fasting and postprandial blood glucose of NIDDM patients of the PD group were significantly lowered after the experimental period of 4 weeks. The levels of the plasma glucose, lipid and index of obesity was measured. The tendency of elevating the level of HDL-cholesterol and lowering the levels of triglyceride, LDL-cholesternl and total cholesternl were also noticed in NIDDM patients of the PD group. The results showed that Polygonatutn odoratum could be an important dietary source to control hyperglycemia and hypertension and that the plant could be recommended as a preventive or therapeutic agent for NIDDM patients.

• Journal of Nutrition and Health
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• v.37 no.4
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• pp.302-309
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• 2004

This study was carried out to investigate the effect of nutrition education program for diabetic patients on the glycemic control at the public health center. The study subjects, aged 61.7 $\pm$ 9.4 years, were 93 sex-and age-matched patients with type 2 diabetes mellitus. They were divided into three groups: nutrition education ＆ diet practice group (EDG), nutrition education-only group (EG), and the control group (CG). Height, weight, and the postprandial 2 hour blood glucose (PP2) were measured at baseline, and 4, 6 and 8 week after the diabetic nutrition education program. At baseline there were no differences in height, weight, and blood glucose levels among the three groups. Nutrition education programs, especially that with group lunch practice sessions were found to be effective in lowering the blood glucose levels in patients with NIDDM patients. At 4 week blood glucose levels were decreased by 40.6% and 19.6% in EDG and EG, respectively, which was further dropped by 50.2% and 35.1% at 8 week, as compared to the CG group. For the EDG group, the total energy intake, which was 162.3% of the prescription before the diet counselling session, was decreased to 113.6% of the prescription after the lunch visit, with most decrease coming from the reduction in carbohydrate and fat intake. Multiple stepwise regression analysis revealed that the total energy intake explained 47.9% and 57% of blood glucose changes for men and women, respectively, and that percent energy intake from protein explained 15.8% for women. These results demonstrate that the public health center nutrition education programs for diabetic patients, especially that with group lunch practice sessions are very effective for the glycemic control in patients with diabetes mellitus.

• Journal of The Korean Society of Integrative Medicine
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• v.6 no.2
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• pp.89-98
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• 2018

Purpose : This study was designed to examine the blood glucose control and increase immunity effects of ${\beta}-glucan$ added cooked barley noodle in streptozotocin-induced diabetes mice with a high-fat diet. Method : Forty-eight male ICR mice (6-week-old) were fed AIN-93 diet for 4 weeks. Mice were divided into six groups: normal, diabetic, cooked barley noodle, ${\beta}-glucan$ (5 %) control and two experimental groups (${\beta}-glucan$ 2.5 % and 5 %, cooked barley noodle contained diet with ${\beta}-glucan$ 2.5 % and 5 % w/w). Diabetes mellitus was induced by intraperitoneal injection of streptozotocin (150 mg/kg). Result : Blood glucose level was significantly decreased in groups consuming cooked barley noodles, but no significant difference was exhibited in diabetic and ${\beta}-glucan$ control group. These results were in accordance with the result of oral glucose tolerance test. Blood interfereon $(IFN)-{\gamma}$ was measured in order to identify increase immunity effect of ${\beta}-glucan$ in diabetic mice. Inhibited $IFN-{\gamma}$ concentration was recovered in cooked barley noodle and ${\beta}-glucan$ control group. Moreover, $IFN-{\gamma}$ concentration was dramatically elevated in ${\beta}-glucan$ contained cooked barley noodle groups in a dose dependent manner. Streptozotocin induced AST and ALT activities were decreased in ${\beta}-glucan$ contained cooked barley noodle groups with a strong lipid lowering effect. Conclusion : Although addition of ${\beta}-glucan$n did not give any significant synergistic effect on cooked barley noodle in blood glucose regulation, suppressed $IFN-{\gamma}$ production by STZ was dramatically enhanced by ${\beta}-glucan$ supplementation in a dose dependent manner. Liver function and blood lipid profile were also in accordance with the increase immunity effect of ${\beta}-glucan$. Consequently, ${\beta}-glucan$ added cooked barley noodle can be consumed as good diets for patients with chronic diseases with reduced immunity.

• The Korean Journal of Physiology and Pharmacology
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• v.19 no.3
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• pp.197-202
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• 2015

Sulfonylureas are widely used as an antidiabetic drug. In the present study, the effects of sulfonylurea administered supraspinally on immobilization stress-induced blood glucose level were studied in ICR mice. Mice were once enforced into immobilization stress for 30 min and returned to the cage. The blood glucose level was measured 30, 60, and 120 min after immobilization stress initiation. We found that intracerebroventricular (i.c.v.) injection with $30{\mu}g$ of glyburide, glipizide, glimepiride or tolazamide attenuated the increased blood glucose level induced by immobilization stress. Immobilization stress causes an elevation of the blood corticosterone and insulin levels. Sulfonylureas pretreated i.c.v. caused a further elevation of the blood corticosterone level when mice were forced into the stress. In addition, sulfonylureas pretreated i.c.v. alone caused an elevation of the plasma insulin level. Furthermore, immobilization stress-induced insulin level was reduced by i.c.v. pretreated sulfonylureas. Our results suggest that lowering effect of sulfonylureas administered supraspinally against immobilization stress-induced increase of the blood glucose level appears to be primarily mediated via elevation of the plasma insulin level.

• Journal of Ginseng Research
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• v.41 no.1
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• pp.52-59
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• 2017

Background: Korean Red Ginseng extract (KRG, Panax ginseng Meyer) and its constituents have been used for treating diabetes. However, in diet-induced obese mice, it is unclear whether KRG can enhance the glucose-lowering action of rosiglitazone (ROSI), a peroxisome proliferator-activated receptor gamma synthetic activator. Methods: Oral glucose tolerance tests (oGTTs) were performed after 4 days of treatment with a vehicle (CON), KRG [500 mg/kg body weight (b.w.)], ROSI (3.75 mg/kg b.w, 7.5 mg/kg b.w, and 15 mg/kg b.w.), or ROSI and KRG (RK) in obese mice on a high-fat diet. Adipose tissue morphology, crown-like structures (CLSs), and inflammation were compared by hematoxylin-eosin staining or quantitative reverse transcription polymerase chain reaction. Results: The area under the glucose curve (AUC) was significantly lower in the RK group (15 mg/kg b.w. and 500 mg/kg b.w. for ROSI and KRG, respectively) than in the CON group. There was no significant difference in the AUC between the CON and the other groups. Furthermore, the AUC was significantly lower in the RK group than in the ROSI group. The expression of the Ccl2 gene and the number of CLSs were significantly reduced in the RK group than in the CON group. Conclusion: Our results show a potential enhancement of ROSI-induced improvement of glucose regulation by the combined treatment with KRG.

• Journal of the Korean Society of Food Science and Nutrition
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• v.28 no.3
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• pp.638-645
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• 1999

This study was done to investigate effects of ${\gamma}$ irradiated beef feeding on the formation of gluta thione S transferase placental form positive(GST P+) foci, lipid peroxidation, cytochrome P450 system and microsomal glucose 6 phosphate activity in diethylnitrosamine(DEN) initiated rat hepatocarci nogenesis. Weaning Sprague Dawley male rats were fed the diet containing ${\gamma}$ irradiatied ground beef at the dose of 0, 3, 5kGy as a 20% of protein source for 8 weeks. One week after feeding, rats were intraperitoneally injected twice with a dose of DEN(50mg/kg BW). As a promoter, 0.05% phenobarbital was fed in drinking water from one week after DEN treatment until the end of experiment. At the end of 8th week, rats were sacrificed and hepatic GST P+ foci, microsomal malondialdehyde(MDA) and conjugated diene contents were determined. In addition, cytochrome P450 content and the activities of NADPH cytochrome P450 reductase and glucose 6 phosphatase were also measured. There was no significant effect by gamma irradiation on microsomal MDA content, conjugated diene, cytochrome P450 content and activities of NADPH cytochrome P450 reductase and glucose 6 phosphatase. However with DEN treatment, microsomal MDA content and conjugated diene contents were significantly changed. Cytochrome P450 content was also significantly increased while microsomal glucose 6 phophatase activity was significantly decreased with DEN treatment. However activity of NADPH cytochrome P450 reductase was not affected. An interesting finding in this study was that the number and area of hepatic GST P+ foci of the rats fed gamma irradiated beef were significantly(p<0.05) lower than those of the control. Such a lowering effect on GST P+ foci formation was highest at the dose of 3kGy than others. Overall results suggest that the consumption of low dose of gamma irradiated beef does not affect the formation of lipid peroxide, cytochrome P450 system and membrane stability.

• The Korean Journal of Food And Nutrition
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• v.11 no.3
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• pp.303-311
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• 1998

This study was carried out to determine the blood glucose responses to 10 kinds of typical Korean domestic meals, 9 kinds of eating out meals and 5 kinds of diabetic meals recommended by hospitals. The levels of blood glucose were measured at 15, 30, 60, 90 and 120 minutes after taking 24 kinds of meals(500$\pm$10㎉) and 50g of glucose to healthy volunteers. The blood glucose response areas and glycemic index(GI) were calculated. There was no invariable tendency of blood glucose responses among diabetic meals, general domestic meals and eating out meals. As the units of grain groups were increased, the GI of meals was increase. When the units of grain groups are same, the side dishes also affected the blood glucose responses, however, it is yet unknown what kinds of food materials of side dishes affected the blood glucose responses. Noodles (Chinese style, kalgugsu(Korean home made) and ramen) lowered blood glucose responses compared to steamed rice. Mixing barley and brown rice with polished rich also lowered blood glucose responses, especially when the mixing ratio of them was over the 15%. The lowering efficiency of barely was greater than brown rice. More than three grain units of rice increased the blood glucose response. The GI was significantly correlated with left area ratio(LAR), right area ratio(RAR) and blood glucose levels at 15, 30, 60, 90 minutes. The RAR and blood glucose levels at 30 minutes profoundly affected the GI.