• Title/Summary/Keyword: SD 쥐

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Effects of Aerobic Exercise upon Cytosolic GAPHD and Mitochondrial MnSOD Activity of Pancreatic Cells in the Type 1 Diabetic Rats (유산소운동이 제1형 당뇨쥐의 췌장 세포질 GAPHD 및 미토콘드리아 MnSOD 활성에 미치는 영향)

  • Lee, Sang-Hak;Yoon, Jin-Hwan
    • 한국체육학회지인문사회과학편
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    • v.51 no.3
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    • pp.437-445
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    • 2012
  • Glyceraldehyde-3-phosphate dehydrogenase (GAPDH) and manganese superoxide dismutase (MnSOD) has been hypothesized as a mediator in the activation of multiple pathways implicated in the pathogenesis of diabetic disease. The objective of this study was to understand the mechanism that aerobic exercise activate GAPDH and MnSOD in pancreatic cells. To achieve the purpose of this study, thirty male Sprague-Dawley rats were assigned to control group, diabetic group and diabetic exercise group. 10 rats were forced to exercise according to exercise protocol for 8weeks and 20 rats were untrained for control and diabetic group. Pancreatic tissue were extracted from the each. Expressions of GAPDH and MnSOD in diabetic pancreatic tissues were significantly decreased compare to control group. However, swimming (trained diabetic group) significantly increased expressions of GAPDH and MnSOD compare to diabetic group, respectively. In hyperglycemia, GAPDH and MnSOD in pancreatic cells is activated by aerobic exercise, and this inactivates multiple pathways implicated in the pathogenesis of diabetic disease. In conclusion, these findings suggest that increased activity of GAPDH and MnSOD by exercise have beneficial effects on mitochondrial dysfunction and arresting the progression of diabetic disease.

The Inhibitory Effects of Intestine-oriented Lactobacillus sp. KP-3 on the Accumulation of Heavy Metals in Sprague Dawley rats (Sprague Dawley 쥐에서 장내 유래 Lactobacillus sp. KP-3의 중금속 축적 저해 효과)

  • Kim, Shin Yeon;Kim, Hyun Pyo
    • Journal of Life Science
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    • v.25 no.2
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    • pp.164-173
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    • 2015
  • To investigate the effect of lactic acid bacteria on the heavy metal adsorption from internal organs and blood, lactic acid bacteria were isolated from human feces. Some strains resistant to heavy metals were selected by incubation in agar media containing each of chrome and cadmium salts. Among them, a strain named KP-3 was ultimately chosen due to its higher growth rate in selective broth medium containing the heavy metals at the concentration of 0.01%. The strain was identified as Lactobacillus sp. based on its morphological, cultural and physiological characteristics. For evaluating the ability to prevent accumulation of heavy metals by selected Lactobacillus sp. strain in vivo, Sprague Dawley rats were fed with heavy metal salts (cadmium, chrome and lead) with or without cultured whole cells for 7 days. The amounts of heavy metals accumulated in liver, kidney and blood were analyzed. As a result, chrome was accumulated to kidney mostly, and lead was frequently found in liver and kidney. Experimental group (rats fed with lactic acid bacteria) showed less accumulation of heavy metal than control group (rats fed with saline solution). The inhibition rates of heavy metal accumulation were calculated to 41.8% (Cd), 33.4% (Cr) and 44.2% (Pb). Especially, feeding lactic acid bacteria strongly reduced accumulation of cadmium in blood. The results showed that feeding Lactobacillus sp. KP-3 could prevent the bioaccumulation of heavy metals in the living body.

Protectins Effects of Vitamin E against Immobilization Stress-Induced Oxidative Damage in Rat Brain (스트레스로 인한 뇌조직의 산화적 손상에서 Vitamin E의 방어 효과)

  • 박미현;강상모;정혜영;홍성길
    • Journal of Nutrition and Health
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    • v.36 no.6
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    • pp.570-576
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    • 2003
  • The remarkable change of phenomenon induced by stress increase energy metabolism that can induce many reactive oxygen species (ROS) production. ROS can peroxidize cellular macromolecules including lipid and protein. The object of this study was to investigate whether stress may induce cellular damage by producing ROS and whether vitamin E, as a strong lipid-soluble antioxidant, can protect cells against reactive oxygen species produced by noise and immobilization stress in SD rats. The stress group increased 5-hydroxyindole aceti acid (5-HIAA) , one of the stress hormone, in brain tissue and free fatty acid in plasma. Vitamin I treatment had no effect on 5-HIAA but free fatty acid contents decreased with a fortified vitamin I diet. Furthermore, the body weight of vitamin I-treated rats increased more than that of the stress group. Lipid peroxidation and protein degradation as an index of oxidative damage in brain tissue decreased with the use of the fortified vitamin I diet supplement. The results suggest that vitamin I supplements have a protective effect against noise and immobilization stress-induced oxidative damage in brain tissue.

Effect of NEES on the Occurrence of c-Fos in the Cerebrum of a Rat With Transient Global Ischemia (일과성 전뇌허혈 유발 쥐의 침전극 저주파자극 후 대뇌의 c-Fos 발현에 미치는 영향)

  • Lee, Jung-Sook;Kim, Sung-Won
    • Physical Therapy Korea
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    • v.17 no.1
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    • pp.69-76
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    • 2010
  • Ischemia that causes stroke induces inflammation of brain cells and apoptosis and as a result, it influences much on the functional part of a man. The needle electrode electrical stimulation (NEES) that combines acupuncture of oriental medicine with electric therapy of western medicine relieves inflammation of cells and has effect on regrowth of nerve tissues. This study was conducted to verify the influence of NEES on the occurrence of c-Fos of cerebrum after applying NEES to the meridian point, Zusanli (ST 36) of a rats with induced ischemia. Global ischemia was induced by using ligation method on common carotid artery of male Sprague Dawley (SD) rats. The ligation was maintained for 5 minutes and then suture was removed for blood reperfusion. After inducing global ischemia, NEES was done to the left and right meridian points of Joksamri of a rat for 30 minutes after 12 hours, 24 hours, and 48 hours. The findings were as follows. 1. In the result of immunohistochemical method, the number of c-Fos immune response cells significantly decreased (P<.05) in NEES group than the control group (GI) that did not get NEES. 2. In the result of western blotting, the occurrence of c-Fos after 24 hours from the inducement of ischemia significantly decreased (P<.05) in NEES group than the control group (GI) that did not get NEES. Therefore, as the effect of NEES was shown highest after 24 hours from the ischemia, it is suspected that NEES would take important role in early treatment after cerebral stroke.

Effect of Saccharin Intake in Restraint-induced Stress Response Reduction in Rats (구속 스트레스 쥐 모델에서 스트레스 반응 감소에 대한 사카린 섭취의 효과)

  • Park, Jong Min;Song, Min Kyung;Kim, Yoon Ju;Kim, Youn Jung
    • Journal of Korean Biological Nursing Science
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    • v.18 no.1
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    • pp.36-42
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    • 2016
  • Purpose: Stress activates the sympathetic nervous system and hypothalamic-pituitary-adrenal (HPA) axis and induces the release of glucocorticoids. Saccharin is 300 times sweeter than sucrose, but does not increase blood insulin levels. Thus, this study was designed to evaluate the effect of saccharin intake in restraint-induced stress response reduction in rats. Methods: Adult male Sprague-Dawley (SD) rats had stress induced by restraint for 2 hours/day for 1 week. Saccharin was provided in sufficient amounts to allow them to intake it voluntarily at 0.1% diluted in water. The Y-maze test and forced swim test (FST) were performed to evaluate cognitive function and the depressive behavior of the rats. The protein expression of the glucocorticoid receptor (GR) in hippocampal cornu ammonis (CA) 1 was investigated by using immunohistochemistry. Results: It was found that, the percentage of alternation in the Y-maze test was significantly (p<.01) higher in the Stress + saccharin group than in the Stress group. Immobility time in the FST was significantly (p<.01) lower in the Stress + saccharin group than in the Stress group. Also, the positive cells of GR in hippocampus CA1 were significantly (p<.05) lower in the Stress + saccharin group than in the Stress group. Conclusion: This study showed that there was an effect of saccharin intake in restraint-induced stress response reduction in rats.

Protective Effect of Eriobotrya japonica Lindl. on Hepatotoxicity by Carbon Tetrachloride (비파식초의 사염화탄소에 의한 간독성 보호 효과)

  • Shin, Yu-Bin;Ha, Bae-Jin
    • Journal of Food Hygiene and Safety
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    • v.33 no.1
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    • pp.77-82
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    • 2018
  • This study was carried out to investigate the effect of natural Eriobotrya japonica Lindl. vinegar on the liver protective effect of animals exposed to carbon tetrachloride. Eriobotrya japonica Lindl. vinegar (200 mg/kg) was administered at the same time for 28 days, and hepatotoxicity was induced by intraperitoneal injection of carbon tetrachloride on the $29^{th}$ day. The aspartate aminotransferase and alanine aminotransferase levels were significantly decreased (p < 0.001) and the superoxide dismutase and catalase activities were significantly increased (p < 0.001) in the Eriobotrya japonica Lindl. vinegar group compared to the control group. Histopathological observations showed that the Eriobotrya japonica Lindl. vinegar showed hepatic cell structure similar to normal group, and these results showed that it had an effect of suppressing and protecting the damage of liver cell. Therefore, Eriobotrya japonical Lindl. vinegar is considered to be a healthy functional food of the liver.

Effects of Scolopendra subspinipes multilans Herb-Acupuncture on the Carrageenan induced arthritis in rats (오공약침(蜈蚣藥針)이 Carrageenan으로 유발(誘發)된 흰 쥐의 관절염(關節炎)에 미치는 영향(影響))

  • Yu, Won-Bok;Soh, Kyeong-Sun;Jeong, Chan-Gil;Kim, Kwang-Ho
    • Journal of Pharmacopuncture
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    • v.7 no.3
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    • pp.89-98
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    • 2004
  • This study was designed to check of Scolopendra subspinipes multilans Herb-Acupucture on effect of anti-inflammtory function, anti-febrile function and analgestic function in carrageenan-induced arthritic rat. Each of 8 rat were classified into control, sample group. Control group were inject by normal saline and Sample group were injected by Scolopendra subspinipes multilans. Herb-Acupuncture. After elicitating edema and inflammation of Sprgue Dawely(SD) rats by injection of 1% Carrageenan 0.1ml, then the rate of increase of paw edema, CRP, ESR, WBC were checked and rectal-temperature, topical temperature was checked about anti-febrile. writhing syndrome was checked about analgesic. The results were as follows 1. In the sample group, the rate of increase of paw edema was significantly decreased as compared with thatof control group(P<0.05) 2. In the sample group, the rectal-temperature was non-significantly decreased as compared with that of control group (P<0.05) 3. In the sample group, CRP and WBC was significantly decreased as compared with that of control group, but ESR was not.(P<0.05) 4. In the sample group, opical-temperature was significantly decreased as compared with that of control group (P<0.05) 5. In the sample group, analgestic function was not sigiflcntly effected as compared with that of control group(P<0.05) According to the above result, it can be concluded Scolopendra subspinipes multilans Herb-Acupucture showed the treatment effects on the artifical arthritis resulted from carrageenan in rat and it is suggested that more interest and study in the mechanism and clinical use were needed.

Histological and Serological anti-Obesity Effect of Mori Folium in Obesity Induced SD Rat by High Fat Diet (상엽(桑葉)의 고지방식이 유도 비만 쥐에 대한 조직학적 및 혈청학적 항비만 효과 연구)

  • Lee, Jee-Sook;Noh, Hyun-In;Yoon, Da-Rae;Yi, Seo-Ra;Lew, Jae-Hwan
    • The Journal of Internal Korean Medicine
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    • v.33 no.3
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    • pp.306-316
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    • 2012
  • Objectives : Mori Folium is used for hyperlipidemia or diabetes. The study was designed to test the anti-obesity effect of Mori Folium on body weight, hepatic fat accumulation and serum lipid level. Methods : The extract from Mori Folium was made by the pharmacy department of Kyung-hee oriental medical hospital. Normal diet, high-fat diet, 30% reduced diet and Mori Folium groups were set. The normal group was administered normal rat food, but the other three groups were administered high fat food. We measured body weight once a week. After 3 weeks experiment, hepatic lipid accumulations were measured. Also we compared serum lipid levels among the 4 groups after 3 weeks. Results : Mori Folium had no effect on body weight, but the 30% reduced diet had an inhibitory effect on body weight gain. Mori Folium had more inhibitory effect on hepatic fat accumulation than a 30% reduced diet. Mori Folium also has more inhibitory effect on serum triglyceride than 30% reduced diet. Conclusions : Mori Folium has anti-obesity effect on hepatic lipid accumulaion and serum triglyceride level in high fat diet induced rats.

Effect of Percutaneous Electrical Nerve Stimulation on the Spinal Neuron Excitability in STZ-induced Diabetic Rats. (피하신경전기자극이 STZ-유도 당뇨 쥐의 척수신경원 흥분성에 미치는 효과)

  • Kim, Yang-Ho;Jeong, Jin-Gyu;Kim, Tae-Youl
    • Journal of the Korean Academy of Clinical Electrophysiology
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    • v.2 no.2
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    • pp.13-23
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    • 2004
  • This study aimed at examining the effects of percutaneous electrical nerve stimulation(PENS) applied to different parts of the streptozotocin(STZ) induced diabetic rats on the change of glucose level and spinal neuron excitability. A total of twenty-eight SD rats, divided into four groups, were used as experiment animal. Experiment group I, the normal control group, was composed of normal rats without diabetes induction. Experiment group was composed II of the rats without any treatment after experimental diabetes induction. Experiment group III was composed of the rats with 2 Hz and $200\;{\mu}s$ of PENS to the acupuncture points related with diabetes for 20 minutes after diabetes induction. Experiment group IV was composed of the rats with 2 Hz and $200\;{\mu}s$ of PENS to the parts unrelated with diabetes for 20 minutes after diabetes induction. The results can be summarized as follow: As for glucose level, the group I showed no change within normal range, and the group III showed significant increase, compared with other groups (p<0.05). As for the change of H latency, M and H amplitude, the group III showed significant differences in decrease of latency and amplitude (p<0.05). As for Hmax/Mmax ratio, the normal and other groups showed no significant differences in decrease of amplitude. It can be concluded from the above results that PENS to the acupuncture points of the STZ-induced diabetic rats was effective for spinal neurone excitability, in particular, for those of the group with PENS to the acupuncture points. This study was conducted in the period of acute diabetes induction, and therefore, further study should be conducted in the period of chronic diabetes to research both acute and chronic diabetes.

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Effects of Sopyung-tang Extract on Blood Glucose & Antioxidant Enzyme Activities of Streptozotocin-induced Diabetic Rats (소평탕(消平湯)이 Streptozotocin으로 유발된 당뇨쥐의 혈당 및 항산화 효소 활성에 미치는 영향)

  • Choi, Jeong-Sik;Chang, Sun-Kyu;Cho, Chung-Sik;Kim, Cheol-Jung;Han, Dong-Un
    • The Journal of Internal Korean Medicine
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    • v.29 no.1
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    • pp.90-103
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    • 2008
  • Objective : This study wascarried out to understand the effect of Sopyung-tang (SPT) on blood glucose & antioxidant enzyme activities in streptozotocin-induced diabetic rats. Methods : SD rats were separated into three groups, each with 20 rats. Except the normal group, the other two groups were intra-peritoneally injected with streptozotocin 6mg/kg. The experimental group was treated with SPT extract 500mgkg/day for 4 weeks. The normal and control groups were treated with saline 500mg/kg/day for 4 weeks. Changes of plasma glucose level and body weight were observed. After4 weeks, liver and kidney weight, antioxidant enzyme activities, and survival rate were observed with histological changes on liver, kidney and pancreas. Results : In the experimental group, body weight and survival rate increased, while plasma glucose level decreased significantly. Liver and kidney weight, XOD activity decreased in the experimental group compared to the control. GSH-px and CAT activities andinsulin-immunoreactive granules in ${\beta}-cells$ increased significantly in the experimental group compared to the control. Conclusions : This study shows that SPT might be effective for treatment of diabetes and its complications, as well as reduction of oxidative stress.

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