• 통합자연과학논문집
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• 제5권2호
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• pp.100-106
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• 2012

Herbal medicines have been used since the dawn of civilization to maintain health and to treat diseases. Diabetes mellitus is one of the leading cause of death in many developed countries. The incidence of diabetes is increasing at an alarming rate in India. It was estimated that India which had 19.4 million diabetes in 1995 is expected to register a near threefold increase by. Many plants reported to be useful for the treatment of diabetes mellitus in ayurvedic medicine, are being tested for their hypoglycemic activity in experimental animals Lagerstroemia flos- reginae is one such plant commonly found as shade trees in Kerala. In Ayurveda both root and leaves are used in the treatment of diabetes. The main objective of this study was to assess the antidiabetic effect of the alcohol extracted leaves of Lagerstroemia flos- reginae in alloxan induced diabetic rats in terms of controlling blood glucose level, lipid profile, bilirubin, uric acid in serum and lipid peroxides and glutathione in the liver of the experimental animals. The present study has been undertaken to observe the protective effect of the active constituents of Lagerstroemia flos- reginae leaf extracts against alloxan induced diabetes in experimental animal model. The activity of the active constituents was compared with Daonil -a standard drug.

• 한국식품영양과학회지
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• 제16권3호
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• pp.41-47
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• 1987

These studies were conducted to investigate effects of Prunus mume extract on experimentally alloxan-induced diabetes in rabbites, antibacterial activity and acute toxicity in mice ; 1. $LD_{50}$ of Prunus mume extract(P.M.E.) was 15.25g/kg intraperitoneally in mice. 2. P.M.E. showed more significant recuperative effect compared to the control group in alloxan-induced diabetes of rabbits. 1) P.M.E. 800mg/kg bodyweight exhibited more excellent hypoglycemic effect afte 6 days and adjacent to the normal level at 14th day. 2) SGPT activity was significantly decreased after 6 days, and the blood levels of total cholesterol and urea-nitrogen were significant in 800mg/kg at 6 days and 10 days respectively. 3. In antibacterial activity test P.M.E. was active at 0.195mg/kg in Staphyllococcus aureus, 3.125mg/ml in E. coli, Enterobacter cloacae, Klebsiella oxytoca, and in Pseudomonas aeruginosa at 0.391mg/ml. 4. In histological findings, the sample groups were deeply stained, fully granulated and partial degranulation of ${\beta}-cells$, and a few vacuolar and vesicular changes of cytoplasm than alloxan treated group in proportion to the sample amounts.

• 통합자연과학논문집
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• 제15권4호
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• pp.137-144
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• 2022

This paper presents the effect of the supramolecular complex of GA (Glycyrrhizic acid) and Mt(menthol) and GA: Mt (4: 1) obtained on their basis can restore functional dysfunction of the liver mitochondria in alloxan diabetes, ie, inhibit lipid peroxidation. The hypoglycemic activity and mitochondrial membrane stabilizing properties of the supramolecular compound GA: Mt (4: 1) in alloxan diabetes were more pronounced than those of menthol, GA and its GK: Mt (2: 1) and GA: Mt (9: 1) compounds. According to the results obtained, the concentration of GA did not affect the peroxidation of lipid membranes of the liver mitochondria. However, a concentration of 15 μM of GA was found to reduce LPO (lipid peroxidation) formed by the effect of Fe²+ / ascorbate on the mitochondrial membrane by 58.0 ± 5.0% relative to control. The inhibitory effect of GA and its supramolecular compounds in different proportions with menthol on the peroxidation of lipids in rat heart and brain tissue has been studied

• 원예과학기술지
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• 제28권5호
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• pp.850-856
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• 2010

고혈당 쥐에(Sprague-Dawley rat) 각종 야채와 과일을 섭취(1g/kg body weight) 한 후 oral glucose tolerance test(OGTT)을 실시하였다. 0분, 5분, 15분, 30분, 60분, 90분, 120분 후에 blood glucose levels(${\Delta}BGLs$)을 측정하였다. Under glucose curve(${\Delta}AUCs$)은 OGGT의 120분 후 계산하였으며 과일과 야채의 Total phenolic content(TPC)과 anti-oxidant activity (AOA)는 Folin Ciocalteu and DPPH(2, 2-diphenyl-1-picrylhydrazyl)을 통하여 특정하였다. 실험의 마지막은 Pearson's correlations을 사용하여 TPC, AOA and ${\Delta}AUC$ 간의 상관관계를 분석하였으며 모든 통계수치는 unpaired Student's t-test를 실시하였다. 과일중에서는 탠저린, 자두, 배가 저혈당 효과를 보였으며 야채중에서는 푸른잎 머스타드와 양배투, 치커리, 브로콜리가 감소된 ${\Delta}BGLs$와 유효한 ${\Delta}AUC$수치를 보여서 저혈당 효과에 효과적이었다. 효과적인 ${\Delta}AUC$의 범위는 $5548.2{\pm}462.1$에서부터 $3823.3{\pm}282.0mg{\cdot}min/dL$이며, TPC와 AOA의 범위는 $0.063{\pm}0.00$에서부터 $0.913{\pm}0.14mg/g$ GAE, $01.05{\pm}0.08$에서부터 $75.46{\pm}0.06%$이다. 전체적으로 과일의 50%와 양체의 60-65%가 높은 TPC와 효과적인 AOA의 수치를 나타내었다. 우리는 이번 연구를 통하여 저혈당 효과가 있어 제2형 당뇨를 예방할 수 있는 과일과 채소류를 선별할 수 있었다.

• 한국환경농학회지
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• 제30권2호
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• pp.111-117
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• 2011

BACKGROUND: Anthocyanins have been recognized as health-enhancing substances due to their antioxidant activity, anti-inflammatory, anticancer, and hypoglycemic effects. The objective was to identify anthocyanins-rich rice grains for the development of functional foods and/or functional food colorants METHODS AND RESULTS: Rice grains of one black and three red-hulled rice varieties were extracted with acidified 80% aqueous methanol. The antioxidant activity of the methanolic extracts was screened on TLC plates and in an in vitro assay using DPPH (1, 1-diphenyl-2-picrylhydrazyl) as a free radical source. Red-hulled rice varieties exhibited higher antioxidant activity (88%, 1 mg/mL) than black rice (67%, 1 mg/mL). Among the red-hulled varieties tested, rice variety SSALBYEO54 (901452) was the most active (72%, 0.5 mg/mL). Rice extracted anthocyanin compounds were analyzed by HPLC-DAD-FLD and LC-MS/MS. Red-hulled varieties comprised cyanidin-3-glucoside in addition to ferulic acid esters, apigenin and kaempferol glycosides. CONCLUSION(s): Anthocyanins identified in the black rice variety were cyanidin-7-O-galactoside, cyanidin-3-Oglucoside, cyanidin-3'-O-glucoside, cyanidin-5-O-glucoside, cyanidin-3, 7-O-diglucoside, cyanidin-3, 5-O-diglucoside and peonidin-4'-O-glucoside. The results of this study show that the black rice (IT212512) and red-hulled rice variety SSALBYEO54 (901452) contain notable antioxidant activity for potential use in nutraceutical or functional food formulations.

• 한국잠사학회:학술대회논문집
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• 한국잠사학회 1997년도 Progress and Future Development of Sericultural Science and Technology 40th Anniversary Commemoration Symposium
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• pp.133-158
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• 1997

Since 1992, Sericulture & Entomology Research Institute(NSERI) and Kyung Hee University group screened an activity of lowering blood-glucose levels with silkworm related materials such as silkworm larvae powder, dried feces, pupae and silkworm moth in other to guide laymans to rational and educated utilization of silkworm-related materials for the treatment of diabetes mellitus. In experiments examining several silkworms in different stages and prepared in different conditions, a freeze dried silkworm powder of 5th instar 3rd day showed a higher glucose lowering activity about 20% than heat dried matured silkworm powder. Among the three dosage of 500mg, 830mg and 1,160mg in ate preliminary clinical trial, the 830mg exhibited a significant effect on postprandial blood glucose level and did and did not cause any hypoglycemic side effect. In the blood glucose lowering activity of mulberry and silkworm varieties, the Yongcheonppong and Samkwangjam showed the highest activity for lowering blood glucose levels. In experiments to see the difference in blood-glucose lowering activity between either male and female or larvae and pupae, activity of larvae was higher than that of pupae and the male was higher than female. The heating dry and artificial diet showed lower than mulberry diet and normal freeze dry of the 5th instar 3rd day. Among the sericultural products, larvae showed the highest activity. We find out the fact that effect of silkworm powder attributed to the inhibition of ${\alpha}$-glucohydrolase catalyzed reaction in the small intestine.

• Advances in Traditional Medicine
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• 제8권3호
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• pp.302-310
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• 2008

Azadirachta indica A. Juss (N.O. Meliaceae), popularly known, as 'Neem' is an indigenous tree widely available in India. Almost every part of the tree has long been used in Unani system of medicine for the treatment of a variety of human ailments. The flowers have been mentioned as a remedy useful in controlling diabetes mellitus. The present study had been designed to investigate the hypoglycemic/anti-hyperglycemic effects of the methanolic extract of the flowers of A. indica (Gule-Neem) and its different fractions on normal, glucose fed hyperglycemic, adrenaline induced hyperglycemic and alloxan induced diabetic rats. The methanolic extract was resolved into water soluble and water insoluble fractions. Water soluble portion of the methanolic extract was found to possess significant blood sugar lowering effect in glucose-fed and adrenaline-induced hyperglycemic rats but it did not show such effect in normal and alloxan induced mild and severe diabetic rats. Water-soluble portion was fractionated by employing the polarity criterion with ethyl acetate and butanol. The ethyl acetate fraction was further fractionated into phenolic and non-phenolic fractions. Hypoglycemic effect of these fractions was also evaluated. The results suggest that the flowers of A. indica contain at least two different constituents, responsible for the said activity. These investigations validate the use of flowers of A. indica in diabetes by Unani physicians.

• 한국식품영양과학회지
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• 제42권7호
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• pp.1079-1085
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• 2013

본 연구에서는 오미자 농축액 첨가량(0~5%)에 따른 소스의 품질특성과 혈당강하능 및 관능적 특성에 미치는 영향에 대해 조사하였다. 오미자 농축액 첨가량이 증가할수록 수분함량, 총 페놀함량 및 환원당은 증가하였고 pH는 감소하였다. 소스의 이화학 시험 결과 당도, 환원당, 총 페놀함량, ${\alpha}$-amylase 저해율 및 ${\alpha}$-glucosidase 저해율 등은 오미자 농축액의 첨가량에 따라 증가하였다. 소스의 색도는 오미자 농축액 첨가량이 증가함에 따라 명도는 감소하였고, 적색도, 황색도 및 ${\Delta}E$ 값은 증가하였다. 관능적 특성은 소스만 섭취 하였을 때 4% 첨가한 오미자 소스에서 가장 높은 기호도를 나타내었고, 닭 가슴살과 함께 섭취하였을 때 5% 첨가한 오미자 소스의 기호도가 가장 높았다.

• 한국식품영양학회지
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• 제29권1호
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• pp.19-26
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• 2016

Mulberry (oddi) is one of the most popular functional foods with many physiological components. This study investigated and compared the nutritional compositions and physiological activities of four mulberry fruits from Morus albo L. including Cheongilppong, Iksuppong, Suwonppong and Cheongsuppong (a new cultivar from Chungcheongbuk-do). To analyze the nutrient contents, mulberry fruits were freeze-dried. The results showed that the proximate compositions of the four mulberry cultivars ranged from 9.61~14.11% for moisture, 8.28~11.90% for crude protein, 3.70~4.86% for crude ash, 4.28~5.54% for crude lipid and 7.46~10.78% for crude fiber. The above proximate contents of mulberry cultivars were not significantly different. However, Cheongsuppong had the highest content of reducing sugar, 74.7%. Chungsuppong and Iksuppong showed higher contents of total polyphenol and anthocyanin than other mulberry cultivars, while all mulberry cultivars showed high antioxidant activities. Hypoglycemic effect had a slightly higher level in Suwonppong and Cheongsuppong than in the other samples. Taken together, the new cultivar "Cheongsu" oddi can be suggested as a potential source of functional food.

• Food Science and Biotechnology
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• 제15권6호
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• pp.851-855
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• 2006

Acarviosine-glucose (AcvGlc) is an ${\alpha}$-glucosidase inhibitor and has similar inhibitory activity to acarbose in vitro. We synthesized AcvGlc by treating acarbose with Bacillus stearothermophilus maltogenic amylase and fed C57BL/6J and db/db mice with diets containing purified AcvGlc and acarbose for 1 week. AcvGlc (50 and 100 mg/100 g diet) significantly reduced plasma glucose and triglyceride levels in db/db mice by 42 and 51 %, respectively (p<0.0001). The hypoglycemic and hypotriglyceridemic effects of AcvGlc were slightly, but significantly, greater than those seen with acarbose treatment (p<0.0001) in C57BL/6J mice. In an oral glucose tolerance test, glucose tolerance was significantly improved at all time points (p<0.01). The expression of two novel glucose transporters (GLUTs), GLUT10 and GLUT12, were examined by Western blot analysis. GLUT10 was markedly increased in the db/db livers. After AcvGlc treatment, the expression of hepatic GLUT10 was decreased whereas intestinal GLUT12 was significantly increased in both strains of mice. Our results show that AcvGlc improves plasma lipid and glucose metabolism slightly more than acarbose. Regulation of hepatic GLUT10 and intestinal GLUT12 may be important in controlling blood glucose levels.