This study was carried out to investigate the in vivo and in vitro inhibitory effect of a traditional herbal complex (HC) extract prepared from a mixture of four oriental herbs (Dioscorea Rhizoma, Glycine soja Sieb. et Zucc, Bombycis corpus, Fermented Glycine soja) that have been widely used for the treatment and prevention of diabetes mellitus on hyperglycemia. The water extract of HC showed potent inhibitory effect on $\alpha$-glucosidase with $IC_{50}$ value of 1.24 mg/mL. Additionally, the ethanol extract of HC was also found to exhibit significant inhibitory effect against protein tyrosine phosphatase $1{\beta}$ ($PTP1{\beta}$), which is known as a major regulator of both insulin and leptin signaling. In the $PTP1{\beta}$ inhibitory assay, the most active n-hexane fraction obtained from the ethanol extract of HC, was identified as a mixture of fatty acid derivatives by gas chromatography-mass spectrometry (GC-MS). In high-fat diet-low dose streptozotocin (STZ)-induced diabetic rat, the water extract of HC improved the oral glucose intolerance as compared with rosiglitazone. HC also caused a marked decrease of body weight and fasting blood glucose and a significant improvement on glucose tolerance in metabolic syndrome mice model. These findings support that this traditional HC may be useful in the control of blood glucose in diabetes mellitus and metabolic syndrome.
Although many studies on immune modulatory materials have used RAW 264.7 cells, few have used T cell-derived TK-1 cell lines. Moreover, although some studies have investigated the efficacy of plant-derived β-sitosterol, few have examined the immunomodulatory activity of its analogue, daucosterol. In this study, β-sitosterol and daucosterol were isolated from D. batatas and identified by nuclear magnetic resonance spectroscopy. To evaluate the immune-enhancing or inhibitory effects of the isolated phytosterols, the expression levels of the inflammatory response genes COX-2, TNF-α, IL-6, and iNOS were analyzed by RT-PCR. The relative expression levels of TNF-α and iNOS in RAW 264.7 cells were increased more than threefold with β-sitosterol treatment comparing to those of untreated control. In the case of TK-1 cells, the expression level of TNF-α was decreased and the expression level of iNOS was increased in a β-sitosterol concentration-dependent manner. The expression levels of COX-2, TNF-α, and IL-6 increased by approximately 0.7-1.2 times in RAW 264.7 cells treated with daucosterol compared to those of untreated control, but iNOS expression decreased by 0.8-0.18 times. In the case of daucosterol-treated TK-1 cells, the expression levels of TNF-α, IL-6, and iNOS were markedly reduced from those of TK-1 cells treated only with lipopolysaccaride. As a conclusion, β-sitosterol treatment increased TNF-α and iNOS expression levels in RAW 264.7 cells, thus exerting an immune- boosting effect. However, in TK-1 cells, iNOS expression increased while TNF-α expression decreased, indicating an immunosuppressive activity of β-sitosterol. Daucosterol appears to exert an immunosuppressive effect in both macrophages and T cell lines by inhibiting iNOS expression in RAW 264.7 cells and greatly inhibiting the expression of TNF-α, IL-6, and iNOS in TK-1 cells.
Kim, Mihyang;Kim, Bokyung;Kim, Jae-Deog;Kang, A-Ram;Lee, Chang-Eun;Seo, Jungmin;Lee, Dong-Geun;Jo, Jung-Kwon;Kim, Yuck Yong;Yu, Ki Hwan;Lee, Sang-Hyeon
Journal of Life Science
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v.27
no.4
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pp.456-463
/
2017
The purpose of this study was to investigate the effect of 3 types of medicinal herbs (Glycyrrhizae radix, Astragali radix and Dioscorea rhizoma) extracts on estrogen-like activities, proliferation and differentiation in osteoblast. Human breast cancer cell line MCF7 was transfected using an estrogen responsive luciferase reporter plasmid for measure the estrogen-like activity. Estrogen-like activities of extracts were in the range of 1.11~5.73 fold to that of negative control. The extract of G. radix showed the strongest estrogen-like activities. The estrogen-like activities of 50 and $500{\mu}g/ml$ extracts of G. radix were similar to that of $10^{-8}$ and $10^{-7}$ M standard solution ($17{\beta}-estradiol$), respectively. G. radix extract showed no cytotoxicity against osteoblast MC3T3-E1 cells at $1{\sim}1,000{\mu}g/ml$. The extract of A. radix showed no significant proliferation of osteoblast. However, the extract of G. radix and D. rhizome showed maximum 148% and 133% proliferation effects. The extract of G. radix also increased alkaline phosphatase activity and the maximum was 122% at $100{\mu}g/ml$ compared to that of control. The nodule formation by the method of the Alizarin red S staining increased compared to control. These results suggest that G. radix is able to perform the bone formation and prevent osteoporosis.
Purpose : This study examined the non-toxic and the anti-oxidative effect of Dioscoreae Rhizoma on PC12 cells. Sanyak(Dioscoreae Rhizoma; chinese yam, shan yao) is well-known for its curing power for kidney, lung, spleen. Tonifies and augments the spleen and stomach. Tonifies the lung gi and augments the kidney yin. Tonifies the kidneys and also stabilizes and binds. it also binds the essence and treats spermatorrhea, frequent urination, and vaginal discharge. We are therefore interested in whether Dioscoreae Rhizoma is capable of causing abnormal apoptosis processes, and whether this condition can be rectified through Dioscoreae Rhizoma herb treatment. Methods : We used aqueous extract to treat PC12 cells with different concentrations treated with a water or a MeOH extract of Dioscoreae Rhizoma (0, x10, x20, x40, x80). The MTT (3, (4, 5-dimethyl-thiazol) 2, 5-diphenyl-tetraxolium bromide) reduction assay was employed to quantify the differences in cell activity and viability. The Bax expression level was monitored using western-blotting techniques. The patterns of the changes in expression were scanned and analyzed. Results : Bax and GSK-3${\beta}$ promotes cell death and down-regulated during the development of the PC12 cells. This is indicated that Dioscoreae Rhizoma is capable of inducing apoptosis in PC12 cells. The induced cell death and significantly inhibited by Dioscoreae Rhizoma, which can be explained by the increase in the inhibition of Bax and GSK-3${\beta}$ expression. It was also shown that Dioscoreae Rhizoma inhibits the release of $H_2O_2$ and prevents lipid peroxidation. Furthermore, the accumulation of wild type Bax protein significantly downregulated in a dose-dependent manner upon treatment with Dioscoreae Rhizoma. Conclusion : In conclusion, Dioscoreae Rhizoma can induce apoptosis via a Bax-dependent pathway or GSK-3${\beta}$ dependent pathway in PC12 cells into anti-oxidant and protective effect.
Journal of the Korean Society of Food Science and Nutrition
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v.38
no.9
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pp.1131-1138
/
2009
In this study, the breads with medicinal herbs (MH) composites showing cognitive function were prepared and their characteristics were examined. Fifteen kinds of medicinal herbs were extracted with hot water and divided into 3 groups (MH-1, MH-2, MH-3) based on their contents. All groups showed cognitive function in terms of promoting muscarinic receptor, NMDA receptor and acetylcholinesterase inhibition. In the preparation of breads containing MH extracts of various contents (0, 10, 20, 30, and 50%), there were no significant difference among loaf weight of all groups, but loaf volume of all groups were significantly (p<0.05) decreased with increasing content of MH extracts compared to the control group. The "a" and "b" values of bread crumb increased with the content of MH extracts while "L" value decreased, but these values of bread crust were similar to the control group. The most improvements in hardness, fracturability, cohesiveness, gumminess and chewiness of bread were noticed by the addition of 10$\sim$20% MH extracts, while adhesiveness and springiness of bread were the most by the 30% addition ones. Through the sensory evaluation, it was revealed that appearance, mouth feeling, taste, overall preference and crumb texture of bread were not significantly different (p<0.05) between control and those with the 10% addition ones. Therefore the 10% addition ones, which got similar scores to control, will make the most desirable product.
Objectives : We Investigated the effect of Dioscoreae Rhizoma(山藥) on the change of the corticosterone and the rectal temperature(直腸溫渡) of the mice induced by starvation stress(創戰 스트레스). Methods : After administration of Dioscoreae Rhizoma (0.25g/kg, 0.5g, 1.0g/kg, 3g/kg) three times, mice were starved. The corticosterone and rectal temperature were measured after 36.5 hours starvation stress. Results : The plasma cortiosterone levels in the S-2, S-3 and S-4 group were decreased significantly comparing with the control group (P<0.01) after 36.5 hours starvation stress. and rectal temperature was decreased in the control goup comparing with the normal group, but there is no significant change in the Dioscoreae Rhizoma treated group. Conclusion : it might be recognized that Dioscoreae Rhizoma has preventive-effect against starvation stress and also it might be needed further study in various viewpoints. Objectives : This study was disegned to elucidate the short term effect of Rossa rugosae Radix on proliferation. differentiation and maturation of 3T3-L1 Preadipocyte. Methods: 3T3-L1 preadipocytes obtained from Korean Cell Line Bank were cultured in a D ulbecco’ s modified eagle medium(MEM) culture solution containing 10% fetal bovine serum(FBS) and various concentrations of aqueous extract of Rossa rugosae Radix.. The short term effect of the extract of Rossa rugosae Radix on proliferation. differentiation and maturation of 3T3-L1 preadipocytes were investigate after treatment for 24 hours by measuring MTT. Oil Red 0 and latate dehydrogenase activity.. Results: The Rossa rugosae Radix extract inhibited significantly the proliferation of 3T3-L1 preadipocytes and tended to increase latate dehydrogenase activity in the media of differentiated 3T3-L1 preadipocytes & matured 3T3-L1 preadipocytes. the extract also inhibit the lipid accumulation of differentiated 3T3-L1 preadipocytes & matuered 3T3-L1 preadipocytes. Conclusions: These results demonstrated that the Rossa rugosae Radjx extract inhibited the proliferation. differentiation and maturation of 3T3-L1 preadipocytes. suggesting that Rossa rugosae Radix has anti-obesity effect: however further in vivo study is needed to demonstrate its pharmacological effects.
This study was conducted to investigate antioxidative and physiological activities of two stage fermented Chinese Yam (TSFCY) by Monascus sp. MK2 and Lactobacillus brevis HLJ59. The extracts from TSFCY were measured to examine pigments, monacolin K contents, total polyphenol and flavonoid contents, DPPH radical scavenging activity, reducing power, ACE inhibitory activity and GABA contents. In this study, the results show that Monascus sp. MK2 and Lactobacillus brevis HLJ59, with Dioscorea batatas Dence. As the substrate can produce pigments (yellow, orange and red), monacolin K contents, total polyphenol and flavonoid contents, DPPH radical scavenging activity, reducing power, ACE inhibitory activity, and GABA contents at 14.03 (yellow), 13.88 (orange), 15.71 (red), 487.9 (MK, mg/kg), 723.8 (TP, mg/kg), 326.4 (TF, mg/kg), 81.7 (DPPH, %), and 1.5 (RP, O.D), respectively. In addition, the showed ACE inhibitory activity and GABA contents was 86.9% and 977.4 mg/kg in EtOH extract, respectively.
Kim, Kyung-Yeon;Baik, Moo-Yeol;Park, Cheon-Seok;Choi, Sung-Won;Kim, Chang-Nam;Kim, Byung-Yong
The Korean Journal of Food And Nutrition
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v.26
no.1
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pp.22-28
/
2013
The objectives of this study were to develop porridge with medicinal herbs and chicken breast meat and to find out the optimum mixing ratio. Several herb extracts such as Acanthopanacis senticosus, Rehmannia glutinosa, Disocorea japonica, and Poria cocos Wolf were used in the ratio of 2, 1, 1, and 1, respectively. The optimum processing condition for herbal chicken porridge was determined by a design expert program. Seventeen experimental points were selected, and herb extracts (82~101 g), chicken breast meat (30~50 g), and glutinous rice (40~60 g) were chosen as the independent variables. The measured responses were preference of taste, DPPH radical scavenging, SOD-like activity, and cost. The optimum formulation of herbal chicken porridge using the numerical analysis was set at herbal extracts (101 g), chicken breast meat (38.66 g), and glutinous rice (41.34 g) with a 0.714 desirability value. DPPH radical scavenging effect, preference of taste and the cost showed a linear model, whereas SOD-like activity showed a quadratic model indicating a higher interaction among the mixture. As a result of proximate composition of optimized herbal chicken porridge, the contents of moisture, carbohydrate, crude protein, crude lipid, and ash contents were 76.4, 9.0, 1.4, 0.5, and 1.6%, the calories of the porridge was 46.1 kcal/100 g.
Objectives: There is a steady increase in the prevalence of obesity worldwide and obesity is often accompanied by inflammation. Although much emphasis has been placed on the adipose tissue inflammation in obesity, a study with herbal medicine is few. This study aimed to investigate the antidiabetic and anti-inflammatory effect of a complex herbal medicine (CHM) composed of Cornus officinalis, Dioscorea rhizoma, Aurantii fructus, and Mori Foliumon on obese type 2 diabetes mice. Methods: Type 2 diabetes mellitus and obesity were induced by Surwit's high fat, high sucrose diet for 8 weeks. Mice were divided into ND (normal diet, n=10), HFD (high fat and high sucrose diet, n=10), CHM (high fat and high sucrose diet with complex herbal medicine, n=10) and Met (high fat and high sucrose diet with metformin, n=10) groups. The body weight, fructosamine and OGTT (oral glucose tolerance test) were measured. After 8 weeks the blood samples of all mice were taken from the heart, and lipid profiles were measured. Epididymal fat pad, histological size of the adipocyte tissue and liver weights were measured. Inflammatory markers such as leptin and adipocyte tissue macrophage were measured to evaluate the effect of CHM on adipocyte tissue inflammation. Results: Compared with the HFD group, there was an improvement in OGTT and epididymal fat decreased in the CHM group. White adipocyte size and adipocyte tissue macrophage decreased in CHM group. Conclusions: These results suggest that CHM has antidiabetic and anti-inflammatory effects in high fat, high sucrose diet induced obese mice.
Now many sustitution and false articles is used in korea instead of shanyao. To use shanyao correctly, we will make a quilitative certificational plan of shanyao to investigate all of lieraturea, records and documents. And we could reach conclusions as folloews. 1) Source About a source of shanyao, though korea and china has a each other source, we think there is no problem in use of both. 2) Process In our country producing shanyao as medical use is a 'duanma', we can divide into peeling and non-peeling, drying at bulks and at briquets, steaming shanyao and fresh shanyao. Regardless of existence for peeling and steaming, a distributing shanyao is received a proper judgment. Like this result was expressed by insufficiency of standards about medical components or indicating components. We detected a reminding S02 more than 10 ppm. And this expresses that there ia a problum at a drying method. To suggest proper processing methods, a standard of quility will have to be made which the existence of peeling, difference of quility between 'changma' and 'duanma', drying method and exudation test with cutted thickness are adaptable. Besides, 'maoshanyao' and 'guangshanyao' of china is processed by various methods which decrease a medical effect such as too much soaking shanyao in water, steaming with a sulfur, too much peeling, So we must process shanyao like the next methods. (1) When harvesting, dig deeply not to cut off roots. (2) Not to peel, wash shanyao in a washing machine. (3) Dry to 50-60% degree at sunny place or drying machine. (4) To be easy for drying and exudation, cut off a thick piece with 5 mm (5) Dry perfectly at ding machine. 3) Quality3) Quality (1) Functional standards It is not Proper that 'guangshanyao' is used in china because it has a problem with quility on process of working, If they did not soak shanyao in water or heat with steam, it is the real situation that they cannot cutt off shanyao evenly. In conclusion, shanyao must be heavy, powdery with a perfectly non-peeling surface, section surface is yellow-white color, unequal and has no holes. (2) Physicochemical standards It is the real situation that we can not distinguish into quility of shanyao with established test because various workings which decrease medical effects is used. Therefore we suggest a testing standard of S02 which is used in bleaching. And testing standards relatived with decrease of medical effects must be established at once. It must that Dry on loss is less than 14.0%, content of ash is less than 6.0%. Content of acid-nonsoluble ash is less than 0.5%. Contens of heavy metal has to detect less than 30 ppm and there is no reminding agricultural medince.
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