• 제목/요약/키워드: Antidiabetic

검색결과 458건 처리시간 0.031초

Streptozotocin 유도 당뇨병 생쥐 모델에서 지각 추출물의 항당뇨 효과 (Antidiabetic Effect of Aurantii Fructus Immaturus in Streptozotocin-induced Diabetes Model of Mice)

  • 이경재;임지성;김지은;이수경;김현주;송용선
    • 동의생리병리학회지
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    • 제37권1호
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    • pp.1-8
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    • 2023
  • The aim of this study is to evaluate the antidiabetic effect of the water extract of Aurantii fructus immaturus (WAF), in diabetic models using enzyme, cells and mice, and to suggest a putative mechanism explaining its antidiabetic effect. In an enzyme model using the enzyme α-glucosidase, WAF had no significant effect on α-glucosidase, as compared with acarbose, an antidiabetic drug. Nonetheless, WAF was capable of reducing the blood glucose levels during oral sucrose tolerance test and oral glucose tolerance test, implying that there would be other antidiabetic pathways in no relation to inhibition of α-glucosidase. In cell models using RIN-m5f β-cells and L6 myotubes, WAF, at its non-cytotoxic doses, augmented the secretion of insulin in RIN-m5f β-cells stimulated with 5 mM glucose. In addition, it enhanced the cellular uptake of glucose in L6 myotubes stimulated with deprivation of glucose for 12 h. Therefore, it is most likely that WAF may exert its antidiabetic effects, at least in part, by enhancing insulin secretion and glucose uptake. Meanwhile, in diabetic mice induced with peritoneal injection of streptozotocin (STZ), WAF significantly improved fast blood glucose levels, glycosylated hemoglobin levels, body weight loose, blood pressure, and diabetic adverse effects on functions of the kidney and the liver. Taken together, the water extract of Aurantii fructus immaturus may ameliorate diabetes in mice injected with STZ, at least in part, by enhancing insulin secretion and glucose uptake.

Streptozotocin 유발 당뇨 흰쥐에 대한 금전초 추출물의 혈당 강하 효과 (Antidiabetic Effect of Glechoma hederacea LINNAEUS in Streptozotocin-Induced Diabetic Rats)

  • 김옥경
    • 생약학회지
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    • 제35권4호통권139호
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    • pp.300-308
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    • 2004
  • This study was done to investigate the antidiabetic effect of Glechoma hederacea LINNAEUS in Streptozotocin (STZ)-induced diabetic rats. Diabetes was induced by intravenous injection of STZ at a dose of 45 mg/kg dissolved in citrate buffer. The methanol extract of Glechoma hederacea was orally administrated once a day for 6 days. The contents of serum glucose, triglyceride (TG), total cholesterol and Atherogenic Index (Al) were significantly decreased, but high density lipoprotein (HDL)-cholesterol and HDL-cholesterol/total cholesterol ratio (HTR) were significantly increased in Glechoma hederacea treated STZ-sample group compared to the those of STZ-control group. The content of hepatic lipid peroxide and activity of catalase were decreased, but content of glutathione as well as activities of glutathione-S-transferase and superoxide dismutase were increased in Glechoma hederacea treated STZ-sample group compared to the those of STZ-control group. The content of hepatic glycogen and activities of glucose-6-phosphate dehydrogenase, glucokinase were significantly increased, but activity of glucose-6-phosphatase was decreased in Glechoma hederacea treated STZ-sample group compared to the those of STZ-control group. These results indicated that methanol extract of Glechoma hederacea would have antidiabetic effect in STZ-induced diabetic rats.

산수유 추출물이 Streptozotocin으로 유발된 흰쥐의 항당뇨 및 항산화 작용에 미치는 효과 (Antidiabetic and Antioxidative Effects of Corni fructus In Streptozotocin-Induced Diabetic Rats)

  • 김옥경
    • 한국응용과학기술학회지
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    • 제22권2호
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    • pp.157-167
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    • 2005
  • The extraction yield of Corni fructus was about 47.5% by extract apparatus. This study was done to investigate the antidiabetic and antioxidative effects of Corni fructus in Streptozotocin (STZ)-induced diabetic rats. The contents of serum glucose, total cholesterol and hepatic lipid peroxide, glutathione were significantly decreaed (p<0.05) in Corni fructus treated group compared to the those of STZ-control group, also content of triglyceride (TG), atherogenic index (AI) and activity of catalase were decreased, but not statistically significant. High density lipoprotein (HDL)-cholesterol and HDL-cholesterol/total cholesterol ratio (HTR) were increased in Corni fructus treated group compared to the those of STZ-control group. The activities of glutathione-S-transferase (GST) and superoxide dismutase (SOD) were significantly decreaed (p<0.05) in Corni fructus treated group compared to the those of STZ-control group. The content of hepatic glycogen and activities of glucose-phosphate dehydrogenase (G-6 PDH), glucokin-ase were significantly increased, but activity of glucose-Grphosphatase (G-6 Pase)was decreased in Corni fructus treated group compared to the those of STZ-control group. Therefore, these results indicated that ethanol extract of Corni fructus would have antidiabetic and antioxidative effects in STZ-induced diabetic rats.

고려인삼과 당뇨병: 세포와 동물 및 인체실험을 통한 고려인삼의 당뇨병에 대한 효능 (Korean Ginseng and Diabetes: An Insight into Antidiabetic Effects of Korean Ginseng (Panax ginseng C. A. Meyer) in Cultured Cells, Animal Models and Human Studies)

  • 서성호;박건국;박종대
    • 생약학회지
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    • 제51권1호
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    • pp.1-29
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    • 2020
  • Diabetes mellitus, commonly known as diabetes, is a group of metabolic disorders characterized by high blood sugar levels over a prolonged period. Diabetes has been found to show many acute complications such as cardiovascular disease, stroke, chronic kidney disease, foot ulcer and damage to eyes. Korean ginseng (Panax ginseng) has been traditionally known to normalize the functional deficiencies of the lung, spleen and stomach, and thus improve the secretion of body fluids, thereby quenching thirst, suggesting it to be effective in the treatment of diabetes. Experimental studies (in vitro and in vivo) have recently shown that Korean ginseng and its extracts exhibit antidiabetic effects, and also insulin secretion and sensitizing effects related to blood glucose control. Moreover, clinical trials on antidiabetic effects of Korean ginseng have been reported to show blood glucose control, improvement of insulin resistance, reduction of postprandial blood glucose level and improvement of serum lipids (TG, TC, LDL-C). These will be critically examined by means of in vitro studies, cell experiment, animal models and human trials with a focus on understanding of molecular mechanisms.

밀리타리스 동충하초($Cordyceps$ $Militalis$)열수 추출물이 스트렙토 조토신으로 유발된 당뇨 흰쥐의 항 당뇨 대사에 미치는 영향 (Antidiabetic Metabolism Effect on the water Extract of $Cordyceps$ $Militalis$ in Streptozotocin-Induced Diabetic Rats)

  • 김옥경
    • 한국응용과학기술학회지
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    • 제28권3호
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    • pp.267-272
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    • 2011
  • This study was carried to investigate the antidiabetic metabolism effect of water extract $Cordyceps$ $Militalis$(C.M.) in Streptozotocin(STZ) induced diabetic rats. Diabetes were induced by intravenous injection of STZ at a dose of 42mg/kg,b.w. dissolved in citrate buffer. The water extract of C.M. was orally administrated once a day for 7 days at a dose of 500mg/kg,b.w(body weight). or 1,000mg/kg.b.w. The content serum glucose was significantly decreased in C.M. treated group compared to the those of STZ-control group. The content of hepatic glycogen and activities of glucose-6-phosphate dehydrogenase(G-6-PDH), glucokinase(GK) were significantly increased, but activity of glucose-6-phoshatase(G-6-Pase) was significantly decreased in C.M. treated group compared to the those of STZ-control group. These results indicated that water extract of C.M. would have antidiabetic metabolism effect in STZ-induced diabetic rats.

Yacon의 뿌리와 잎의 추출물이 streptozotocin으로 유발된 흰쥐의 항당뇨 효과 (Antidiabetic Effect of Yacon(Smallanthus sonchifolius) of Root and Leaf in Streptozotocin-Induced Diabetic Rats)

  • 김옥경;이경옥
    • 한국응용과학기술학회지
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    • 제30권2호
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    • pp.332-338
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    • 2013
  • This study was carried to investigate the antidiabetic effect of ethanol extract of Smallanthus sonchifolius(S.S) in Streptozotocin(STZ)- induced diabetic rats. Diabetes was induced by intravenous injection of STZ at a dose of 43mg/kg dissolved in citrate buffer. The ethanol extract of S,S in leaves and root were orally administrated once a day for 7 days at a dose of 1,000mg/kg. The contents of serum glucose, triglyceride(TG), total cholesterol were significantly decreased in S.S treated group compared to the those of STZ-control group. The content of hepatic glycogen and activity of glucokinase(GK) were significantly increased,and activity of glucose-6-phoshatase(G-6-Pase) was significantly decreased in S.S treated group compared to the those of STZ-control group, but activity of glucose-6-phosphate dehydrogenase(G-6-PDH) was not significantly increased, These results indicated that ethanol extract of S.S would have antidiabetic effect in STZ-induced diabetic rats.

구기자의 혈당강하작용 (Antidiabetic Activity of Lycii Fructus)

  • 신준수;김경순;정기화;정춘식;고광호;박정일;허훈;김박광
    • 생약학회지
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    • 제28권3호
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    • pp.138-142
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    • 1997
  • To elucidate antidiabetic activity of Lycii Fructus. The extract of the Lycii Fructus was subjected to bioactivity-guided fractionation. The extract of the Lycii Fructus was partitioned suceesively with hexane, dichloromethane, ethylacetate and butanol. The butanol fraction, which is most abundant in the Lycii Fructus was subjected to silica gel column chromatography and resulted in seven fractions namely Fr. I - Fr. VII. Among tested several subfractions, Fr IV. Showed the highest antidiabetic activity in the streptozotocin-induced model rat.

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천연물의 항 당뇨 효능검색 (Antidiabetic Effect Screening of Some Natural Products)

  • 김종호;김경순;박정일;이봉진;허훈;정기화;정춘식;김박광
    • Biomolecules & Therapeutics
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    • 제4권3호
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    • pp.291-295
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    • 1996
  • For the screening of antidiabetic effect, this study was carried out to some natural products by measurements of glucose level. MeOH and $CH_2Cl_2$ extracts of natural products were investigated for the effect on glucose level of $N_2$-STZ diabeted Rat. Among the natural products, Dioscorea Rhizoma, Trichosanthes Radix, Nelumbis Semem and Lycii Fructus were shown a remarkable antidiabetic effect.

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Streptozotocin으로 유발된 흰쥐에 대한 구기자 추출물의 혈당강하 및 항산화 작용에 미치는 효과 (Antidiabetic and Antioxidative Effects of Lycii fructus in Streptozotocin-Induced Diabetic Rats)

  • 김옥경
    • 한국응용과학기술학회지
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    • 제25권1호
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    • pp.73-82
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    • 2008
  • This study was done to investigate the antidiabetic and antioxidant effects of Lycii fructus in Streptozotocin (STZ)-induced diabetic rats. Diabetes was induced by intravenous injection of STZ at a dose 45mg/kg.b.w. dissolved in citrate buffer(pH4.5). The ethanol extract of Lycii fructus was orally administrated once a day for 7 days. The contents of serum glucose, total cholesterol were significantly decreaed (p<0.05) in Lycii fructus treated group compared to the those of STZ-control group, also content of Triglyceride (TG), Altherogenic index (AI) were decreased, but not statistically significant. But high density lipoprotein (HDL)-cholesterol and HDL-cholesterol/total cholesterol ratio (HTR) were increased in Lycii fructus treated group compared to the those of STZ-control group. The content of hepatic glycogen and activities of glucose-6-phosphate dehydrogenase(G-6PDH), glutathione-s-transferase(GST), superoxide dismutase(SOD) were significantly increased(p<0.05), glucose-6-phos-phatase(G-6pase)was significantly decreased(p<0.05) and The glutathione(GSH), glucokinase(GK) were increased. But not statistically significant In Lycii fructus treated group compared to the those of STZ-control group These results indicated that ethanol extract of Lycii fructus would have antidiabetic and antioxidant effects in STZ-induced diabetic rats.