Lee, Cho In;Lee, Hyun Jong;Lee, Yun Kyu;Lim, Seong Chul;Kim, Jae Soo
Journal of Acupuncture Research
/
v.32
no.3
/
pp.41-51
/
2015
Objectives : This study was performed to investigate the effects of $LR_3$ and $SP_6$ acupuncture on renal damage in streptozotocin(STZ)-induced diabetic mice. Methods : ICR male mice were stabilized for a week and divided into four groups: a normal mice group(N), no-acupuncture diabetic mice group(Control), $LR_3$ acupuncture diabetic mice group($LR_3$), and $SP_6$ acupuncture diabetic mice group($SP_6$). Diabetes was experimentally induced by intraperitoneal injection of STZ(150 mg/kg) in citrate buffer(pH 4.5). For two weeks, $LR_3$ and $SP_6$ acupunctures were administered bilaterally at each point once a day. After two weeks, the animals' weight was measured and they underwent a laparotomy. Serum glucose and blood urea nitrogen(BUN) were measured from the blood taken from the heart. We measured glucose, reactive oxygen species(ROS), peroxynitrite($ONOO^-$) and thiobarbituric acid reactive substances(TBARS) in the kidney and compared expression levels of superoxide dismutases(SOD), glutathione peroxidase(GPx), nuclear factor-kappa B(NF-${\kappa}B$), cyclooxygenase-2 (COX-2), inducible nitric oxide synthase(iNOS) and Interleukin-1 beta(IL-$1{\beta}$). Results : BUN significantly decreased in $LR_3$, $SP_6$ compared to the control group. $LR_3$ showed significantly decreased glucose compared to the control group. $LR_3$, $SP_6$ significantly decreased in ROS and $ONOO^-$ compared to the control group. $LR_3$ significantly decreased in TBARS compared to the control group. $SP_6$ significantly increased in expressions of SOD-1, catalase, and GPx compared to the control group. $LR_3$, $SP_6$ significantly decreased in COX-2 compared to the control group. $SP_6$ significantly decreased in IL-$1{\beta}$ compared to the control group. Conclusions : This study suggests that $LR_3$ acupuncture may be effective in controlling glucose and lipid peroxidation and that $SP_6$ acupuncture may have anti-oxidative and anti-inflammatory effects on renal damage in STZ-induced diabetic mice.
The purpose of this study was designed to observe the effects of the Prunus persica Batsch var. davidiana Max. hot-water extract on the improvement of the glucide and lipid metabolism in the serum of streptozotocin (STZ, 55, mg/kg B.W., I.P. injection)-induced diabetic rats(S.D. strain, male) fed the experimental diets for 5 weeks. Electrolyte(Na, K, Cl) concentration in serum were fairly reduced in the group BSP(basal diet+STZ+Prunus persica $5.0g\%$ extract) than in the STZ(I.P.)-induced diabetic rats group(group BSW, basal diet+STZ(I.P.)+water). Although there was no significant difference among the groups. Concentrations of free fatty acid and lipid peroxide in serum were significantly higher in the STZ-induced diabetic group(group BSW) and STZ+Prunus persica $5.0;g\%$ extract group(group BSP) than those in the control group(group BW, basal diet+water). However, the concentrations of free fatty acid and lipid peroxide in serum were remarkably reduced in the group BSP than those in the group BSW, The activity of creatine phophokinase In serum was significantly lower in the group BSP than in the group BSW However, the activity of LCAT in serum was increased in the group BSP(Prunus persica $5.0\;g\%$ hot-water extract administration group) than in the STZ-induced diabetic group(group BSW). The above results shows that Prunus persica Batsch var. davidiana Max. were effective on the improvement of the glucide and lipid metabolism in serum of streptozotocin-induced diabetic rats.
Journal of the Korean Society of Food Science and Nutrition
/
v.28
no.3
/
pp.654-662
/
1999
The purpose of this study was to investigate the effects of vitamin E on the antioxidative defense system of kidney in streptozotocin induced diabetic rats. Sprague Dawley male rats weighing 100$\pm$10g were randomly assigned to one normal and three STZ induced diabetic groups, which were subdivided into vitamin E free diet(DM 0E group), 40mg vitamin E per kg diet(DM 40E group) and 400mg vitamin E per kg diet(DM 400E group). Vitamin E level of normal group was 40 mg per kg diet. Diabetes was experimentally induced by intravenous injection of 55mg/kg of body weight of streptozotocin(STZ) in citrate buffer(pH 4.3) after 4 weeks feeding of experimental diets. Animals were sacrificed at the 6th day of diabetic states. There were no significant on body weights, food intakes, and food efficiency ratio before the diabetic occurrence. But after the injection of STZ, body weights and food efficiency ratios were significantly decreased and the food intakes was increased. Kidney weights were significantly increased in diabetic groups compared to normal group. However, there were no significant differences among the diabetic groups. Plasma insulin levels of diabetic groups were significantly decreased, whereas, blood sugar levels were increased compared to that of normal group. There were no significant differences among diabetic groups in plasma insulin and glucose levels. Activities of superoxide dismutase(SOD) in DM 0E and DM 40E groups were signi ficantly decreased by 33% and 27%, respectively, compared to normal group. But that of DM 400E group was increased by 35% compared to DM 0E group. Activity of glutathione peroxidase(GSHpx) in DM 0E group was decreased by 20% compared with normal group. GSHpx activity in DM 400E group was increased by 29% compared to normal group. The contents of vitamin E in kidney were 58% and 49% lower in DM 0E and DM 40E group, respectively, than normal group. There was no significant difference in renal vitamin E contents between DM-400E group and normal group. The contents of superoxide radical(O2 ) in kidney were 150% and 98%, respectively, higher in DM 0E and DM 40E groups than normalgroup. DM 400E and normal groups were similar levels in their superoxide radical contents of kidneys. These results indicate that vitamin E functioned as chain breaking antioxidant in kidney such as in other tissues.
Journal of the Korean Society of Food Science and Nutrition
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v.31
no.3
/
pp.500-505
/
2002
Many studies have shown that hyperglycemia leads to an increase of lipid peroxidation in diabetic patients and animals, reflecting a rise reactive oxygen species production. It is increasingly recognized that brain is another site of diabetic organ damage. Accordingly, this study was to investigate the effect of dandelion on oxygen free radical generating and scavenging system of brain in streptozotocin (STZ)-induced diabetic rats. Male Wistar rats were divided into diabetic (control) and diabetic-dandelion supplemented groups. Dandelion was supplemented for 4 weeks with dandelion leaf and root powder (DLP, DRP) or dandelion leaf and root water extract (DLW, DRW) based on 11.4 g of raw dandelion/kg diet. Diabetes was induced by single injection STZ (55 mg/kg B.W., i.p.)in a citrate buffer. Oxygen free radical generating enzymes, cytochrome P-450, amino-pyrine N-demethylase, aniline hydroxylase and xanthine oxidase, were lowered in dandelion supplemented-groups compared to the control group. Superoxide dismutase, catalase and gluthathione peroxidase activities of brain were also lower in dandelion leaf and root supplemented-group than in the control group, whereas glutathione S-transferase activity and gluthathione content were increased in dandelion supplemented-groups compared to the control group. With regard to the lipid peroxidation products, the malondialdehyde content of brain was lower in dandelion supplemented groups. Therefore, it could be suggested that powder and water extract of dandelion leaf or root are beneficial in preventing diabetic complication from lipid peroxidation and free radical in brain of diabetic rat brain.
Journal of the Korean Society of Food Science and Nutrition
/
v.37
no.4
/
pp.445-451
/
2008
The purpose of this study was carried out to examine the effects of onion kimchi extract supplementation on blood glucose level and serum lipid components in streptozotocin (STZ)-induced diabetic rats for 4 weeks. STZ was administered as a single dose (50 mg/kg BW) to induce diabetes, and the diabetic rats were divided into eight groups (normal, diabetic control, and six treatment groups). The dose of onion kimchi extract 100 (OK-100), 200 (OK-200), and 400 (OK-400) mg/kg/day or quercetin as a main compound of onion 5 (Q-5), 10 (Q-10), and 20 (Q-20) mg/kg/day were orally administered daily to STZ-induced diabetic rats for 4 weeks after STZ injection. The diabetic control rats (465.6 mg/dL) showed significantly higher blood glucose level than the normal rats (76.3 mg/dL) after 4 weeks, but was significantly reduced with onion kimchi extract and quercetin supplementation (p<0.001). Changes in body weight, kidney weight and urine volume were not significantly different in diabetic control rats, and in onion kimchi extract and quercetin treated rats. The serum total cholesterol levels of control were significantly decreased in onion kimchi extract and quercetin supplementation groups, respectively (p<0.001). The blood urea nitrogen level and urinary protein excretion in diabetic rats were not significant different among the groups. These results suggest that onion kimchi extract supplementation in STZ-induced diabetic rats may be a very important factor for the reduction of blood glucose and serum cholesterol profiles.
This study was designed to examine the effects of fractions of ethanol extract of Benincasa hispida (wax gourd) on plasma glucose and lipid levels in streptozotocin (STZ) induced diabolic rats. sprague-Dawley rats were induced diabetes mellitus by STZ injection (45 mg/kg) into the tail vein and were divided into 5 groups: normal, STZ-control, three experimental diabetic groups. fractions of ethanol extract of Benincasa hispida were administered orally into the diabetic rats for 14 days. The food intake and body weight were monitored and plasma levels of glucose, cholesterol, HDL-cholesterol, triglyceride (TG) , free fatty acid (FFA) , and aminotransferase activity were analyzed. A significant lowering effects of plasma glucose levels were observed in the chloroform fraction and $H_2O$ fraction group compared to STZ-control group at 14 days. Administrations of each of the three fractions decreased plasma TG and FFA levels in diabetic rats. Activity of alanine aminotransferase (ALT) in $CHCl_3$ fraction and $H_2O$ fraction groups and aspartate aminotransferase (AST) in $H_2O$ fraction group significantly lower than STZ-control group. The results show that $CHCl_3$ fraction of Benincasa hispida could be effective to control the STZ-induced diabetic rats. (Korean J Nutrition 38(10): 801$\sim$806,2005)
Jo, Chang Suk;Kim, So Young;Choi, Moon-Yeol;Kim, Mi Hyung;Kim, Mi Ryeo;Seo, Bu-il
The Korea Journal of Herbology
/
v.37
no.1
/
pp.1-9
/
2022
Objective : This study was designed to investigate anti-diabetic effects of fermented soy bean extract with herbal medicines (Godjang) in diabetic rat models induced by streptozotocin (STZ) injection. Method : Changes in body weight, drinking water, and food intake were observed for 4 weeks before and after induction of diabetes mellitus in rats. The anti-diabetic capacity of Godjang was analyzed by fasting blood glucose (FBG) every week. Also, after 4 weeks of administration, the oral glucose tolerance test (OGTT) was performed, and then blood levels of insulin were checked. And serum levels of total cholesterol and triglycerides were determined. Histomorphological changes of liver, kidney and pancreatic tissues were also observed in STZ-induced diabetic rats and Godjang administered rats. Result : In Godjang administered group, body weight and water intake were more lower than that of STZ-induced diabetic rats. FBG was decreased in the Godjang administered group than STZ-induced diabetic group. According to OGTT, blood glucose levels at 30 minutes and 60 minutes significantly decreased in Godjang administered group than in STZ-induced diabetic control group. Administration of Godjang extract for 4W significantly decreased levels of serum glucose, total cholesterol (TC), triglycerides (TG) in diabetic rats. In histomorphological analysis of kidney, liver, Godjang administrated groups showed the inhibition of pathological damage. Conclusion : These results suggest that Godjang extract has an anti-diabetic action through decrease in serum glucose, TC, TG levels and recovery of the morphological changes in kidney and liver in STZ-induced diabetic rats.
The Journal of Korean society of community based occupational therapy
/
v.6
no.1
/
pp.41-48
/
2016
Objective : We tried to know the improvement and neurological effect of diabetes when the complex exercise training was applied on diabetes that delayed the recovery of the ischemic brain injury. Methods : We performed this study in a animal lab which located in Gyengsangbukdo. We used 10 diabetes rats with ischemic brain injury, which is induced by STZ. We applied the complex exercise training on the rats for 4 weeks. We executed the maze test to confirm the recovery of the brain function and checked the blood sugar to know the improvement. Results : As a result of applying the complex exercise on diabetes rats with ischemic brain injury, there was a significant reduce of error and escape time in 3 weeks and 1 weeks, respectively. There was no difference of the blood sugar in control but there was a significant improvement in experiment group after applying the exercise training in 4 weeks. Conclusion : The senile disease like stroke and diabetes was increased currently. It is important for rehabilitation to improve the quality of life during the remainder of their life. In the study, we've known the improvement of diabetes and the recovery of the brain function when the complex exercise training was applied the rats with both diabetes and the ischemic brain injury.
Kim, Ah-Rong;Jeong, Soo-Mi;Kang, Min-Jung;Jang, Yang-Hee;Choi, Ha-Neul;Kim, Jung-In
Nutrition Research and Practice
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v.7
no.3
/
pp.166-171
/
2013
The purpose of this study was to investigate the effects of lotus leaf on hyperglycemia and dyslipidemia in animal model of diabetes. Inhibitory activity of ethanol extract of lotus leaf against yeast ${\alpha}$-glucosidase was measured in vitro. The effect of lotus leaf on the postprandial increase in blood glucose levels was assessed in streptozotocin-induced diabetic rats. A starch solution (1 g/kg) with and without lotus leaf extract (500 mg/kg) was administered to the rats after an overnight fast, and postprandial plasma glucose levels were monitored. Four-week-old db/db mice were fed a basal diet or a diet containing 1% lotus leaf extract for 7 weeks after 1 week of acclimation to study the chronic effect of lotus leaf. After sacrifice, plasma glucose, insulin, triglycerides (TG), total cholesterol (CHOL), high-density lipoprotein (HDL)-CHOL, and blood glycated hemoglobin levels were measured. Lotus leaf extract inhibited ${\alpha}$-glucosidase activity by 37.9%, which was 1.3 times stronger than inhibition by acarbose at a concentration of 0.5 mg/mL in vitro. Oral administration of lotus leaf extract significantly decreased the area under the glucose response curve by 35.1% compared with that in the control group (P < 0.01). Chronic feeding of lotus leaf extract significantly lowered plasma glucose and blood glycated hemoglobin compared with those in the control group. Lotus leaf extract significantly reduced plasma TG and total CHOL and elevated HDL-CHOL levels compared with those in the control group. Therefore, we conclude that lotus leaf is effective for controlling hyperglycemia and dyslipidemia in an animal model of diabetes mellitus.
This study investigated the effect of dietary $\beta$-carotene supplementation on lipid peroxidation and anti oxidative enzyme activity as indices of oxidative stress in diabetic rats. Fifty Sprague-Dawley male rats aging 7 weeks were used as experimental animals, which were divided into the non-diabetic control group and the diabetic group. The diabetic group received an intraperitoneal injection with streptozotocin to induce diabetes. Then the diabetic rats were divided into four dietary groups which contained different amounts of $\beta$-carotene; 0%, 0.002%, 0.02%, or 0.2% of the diet. The diabetic rats were fed the experimental diets and the non-diabetic rats were fed the basal diet without $\beta$-carotene supplementation for 2 weeks and then sacrificed. The diabetic group had a significantly higher blood glucose level than the non-diabetic group. However, blood glucose level were not significantly changed by the level of dietary $\beta$-carotene supplementation. Compared to the non-diabetic control group, the diabetic control group indicated a significant increase of plasma thiobarbituric acid reactive substance (TBARS). Liver TBARS level also tended to be higher in diabetic control group, although it was not significant. The $\beta$-carotene supplementation did not reduce plasma TBARS level. However, Liver TBARS level was significantly decreased when 0.02% or more $\beta$-carotene was supplemented in the diet. The liver lipofuscin level in the diabetic control group was higher than in the non-diabetic control group, but the effect of $\beta$-carotene supplementation did not show any differences. Superoxide dismutase activity was significantly lower in the diabetic group, but it was increased in groups receiving 0.02% or more $\beta$-carotene. Compared to the non-diabetic control group, lower activities of catalase and glutathione peroxidase were observed in the diabetic control group, although it was not significant. Catalase and glutathione peroxidase activities tended to increase as the levels of $\beta$-carotene supplementation increased, although it was not statistically significant. Therefore, it seems that dietary $\beta$-carotene supplementation might reduce diabetic complications by partly decreasing the lipid peroxidation and increasing the activity of antioxidative enzyme in diabetes.
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