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Effects of Rhus verniciflua Stokes (RVS) Extract on Diet-induced Obesity in C57BL/6 mouse (옻나무 추출물이 식이에 의한 비만유도 C57BL/6 mouse에 미치는 영향)

  • Kim, Jung-Hee;Lee, Hye-Won;Ko, Byoung-Seop;Kim, Ho-Kyoung;Jeon, Won-Kyung
    • Korean Journal of Pharmacognosy
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    • v.34 no.4 s.135
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    • pp.339-343
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    • 2003
  • We investigated the effects of Rhus verniciflua Stokes (RVS) on high fat diet- induced obesity in C57BL/6 that received ad libitum exposure to a high fat diet for 8 weeks. Male C57BL/6 mice weighing $20.1{\pm}0.95\;g$ were divided into four groups and the body weight and food intake were weighed for 8 weeks. After the administration of RVS extract, the liver, subcutaneous and retroperitoneal adipose tissue in the mice were weighed and common blood count in whole blood and biochemical parameters in plasma were measured. It was founded that body weight increase was significantly suppressed by the oral administration of RVS extract in group with high fat diet. Weight of subcutaneous adipose tissue and concentration of triglyceride in plasma from mice which were administrated RVS extract were lower than obesity control group. These results suggest that RVS extract may effect on inhibition of diet-induced obesity.

Flavonoids and Functional Properties of Germinated Citron (Citrus junos Sieb. ex TANAKA) Shoots

  • Choi, In-Wook;Choi, So-Yun;Ji, Joong-Ryung
    • Food Science and Biotechnology
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    • v.18 no.5
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    • pp.1224-1229
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    • 2009
  • The main objective of this study was to investigate possible application of citron (Citrus junos Sieb. ex TANAKA) seeds, which are massively produced as by-products during citron tea process, into functional food materials. First of all, citron seeds were germinated and produced citron shoots were examined for their functional properties. When contents of flavonoids in citron seeds and their germinated shoots were compared, naringenin, neohesperitin, and hesperitin were remarkably increased in shoots after germination while naringin and didymin were decreased. Concentrations of limonin and nomilin were decreased by germination otherwise their unidentified derivatives were newly formed. A methanol extract of citron shoot had lower $IC_{50}$ values [0.13 and 0.07 mg/mL for 2,2-diphenyl-1-picryl-hydrazyl (DPPH) and ABTS, respectively] than citron seed extract in radical scavenging activities. Addition of 500 mg/mL of citron shoot extract suppressed fat accumulation in 3T3-L1 adipocytes by 36.9%. Oral administration of olive oil along with citron shoot extract (33 mg/kg body weight) to Sprague Dawley rats effectively inhibited absorption of lipid into a body by decreasing blood triglyceride levels from 105.1 to 74.9 mg/dL 2 hr after olive oil administration. According to these results, citron shoot extract as a rich source of flavonoids can be utilized for functional food ingredients with effective antioxidant and anti-adipogenic properties.

Grape seed extract (Vitis vinifera) partially reverses high fat diet-induced obesity in C57BL/6J mice

  • Park, Su-Hui;Park, Tae-Sun;Cha, Youn-Soo
    • Nutrition Research and Practice
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    • v.2 no.4
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    • pp.227-233
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    • 2008
  • The aim of the present study was to assess the anti-obesity effects of grape seed extract (GSE) supplement in C57BL/6J mice. Thirty mice were divided into three groups; normal diet control group (ND), high fat diet control group (HD) and high fat diet plus grape seed extract supplemented group (HD+GSE). Results were as follows: 1. GSE supplement reduced the weight gain in mice fed high fat diets; epididymal and back fat weights, were lower compared to non-supplemented HD group. 2. Blood lipid concentrations were lower in the HD+GSE group than in the HD group. Serum HDL-C concentrations were higher in the HD+GSE group compared with the other groups. 3. The concentrations of acid-insoluble acylcarnitines, (AIAC) in serum and liver were higher in the HD+GSE group than in the HD group. 4. GSE supplementation increased mRNA levels of lipolytic genes such as carnitine palmitoyltransferase-l (CPT-1) and decreased mRNA levels of lipogenic genes such as acetyl CoA carboxylase (ACC). These findings suggest that grape seed extract supplements in high fat diet might normalize body weight, epididymal and back fat weights, lipid concentrations, and carnitine levels through controlling lipid metabolism.

Effects of Taraxacum mongolicum Extract on Blood Glucose Levels and Lipid Profiles in Streptozotocin-Induced Diabetic Rats

  • Hye Kyoung Han;Eun Young Choi
    • The Korean Journal of Food And Nutrition
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    • v.36 no.1
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    • pp.50-57
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    • 2023
  • This study was designed to evaluate antihyperglycemic and antihyperlipidemic effects of ethanol extracts of Taraxacum mongolicum(T.m.) on streptozotocin (STZ)-induced diabetic rats. Sprague-Dawley rats were randomly assigned to five groups: normal (NC), STZ-control (DC), and three experimental groups. Diabetes was induced in Sprague-Dawley rats with a single intravenous injection [45 mg/kg body weight (b.w.)] of STZ. An ethanol extract of T.m. was orally given to diabetic rats for 14 days. Three experimental groups were additionally treated with T.m. extract at doses of 1 g/kg b.w./day for T.m.-1, 2 g/kg b.w./day for T.m.-2, and 3 g/kg b.w./day for T.m.-3. Oral administration of T.m.-2 significantly increased their body weights. T.m.-1 and T.m.-2 significantly decreased aspartate aminotransferase (AST) levels than DC. T.m.-1 and T.m.-2 group significantly decreased blood glucose levels. Total cholesterol, triglycerides, and free fatty acids were significantly decreased whereas high-density lipoprotein cholesterol was significantly increased in groups treated with T.m. extract than those in the DC group. These results support the fact that administration of T.m. extract can reduce hyperglycemia and hyperlipidemia risk in diabetic rats.

Hot Water Extract of Leather Carp (Cyprinus carpio nudus) Improves Exercise Performance in Mice

  • Lee, Gong-Hyeon;Harwanto, Dicky;Park, Sun-Mee;Choi, Jae-Suk;Kim, Mi-Ryung;Hong, Yong-Ki
    • Preventive Nutrition and Food Science
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    • v.20 no.4
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    • pp.246-252
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    • 2015
  • The hot water extract of leather carp (Cyprinus carpio nudus) has been used as a nourishing tonic soup and as an aid for recovery from physical fatigue. In this study, we investigated the effect of leather carp extract on exercise performance in mice. Swimming endurance and forelimb grip strength were assessed following oral administration of the extract (once per day for 7 days) at a dose of $0.5 mg/10{\mu}L/g$ body weight. After 7 days, mice given the leather carp extract had significantly greater swimming endurance [$105{\pm}18s$ (P<0.05); 52% longer than day 0] and forelimb grip strength [$1.18{\pm}0.05$ Newton (P<0.01); 17% greater than day 0]. The extract increased muscle mass, but had little effect on body weight. Following the swimming exercise, blood glucose, glutathione peroxidase, and superoxide dismutase levels in extract-fed mice were significantly higher (145%, 131%, and 106%, respectively) than in the saline control group. Blood levels of high-density lipoprotein cholesterol were also significantly increased (128%) in mice given the extract compared to the controls. These results suggest that leather carp extract can improve physical exercise performance and prevent oxidative stress caused by exhaustive workouts.

Effect of Chicory Root Extract on Cholesterol Metabolism in Rats

  • Cha, Jae-Young;Jeong, Soon-Jae;Cho, Young-Su
    • Journal of Applied Biological Chemistry
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    • v.44 no.3
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    • pp.131-134
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    • 2001
  • Effects of water-soluble extract from roasted-chicory root on the cholesterol metabolism in rats fed cholesterol diet were investigated. Sprague-Dawley rats received a hypercholesterolemic diets without (control group) or with 5.0% water-soluble extract from roasted chicory root for 2 weeks. Roasted chicory extract group showed significantly higher body weight gain and food intake compared with the control group. The concentrations of total cholesterol and LDL+VLDL cholesterol in serum were significantly lower in rats fed roasted chicory extract diet. However, HDL-cholesterol concentration, and atherogenic index were not significantly affected by the dietary roasted chicory extract. Fecal net weight, fecal cholesterol, and bile acid excretion were significantly higher in the chicory extract group. The results suggest that the hypocholesterolemic effect in rats fed roasted chicory extract may be caused by an alteration in the absorption of cholesterol by an increase in the fecal excretion of cholesterol and bile acid.

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Effects of Prunellae Spica Extract on LT4-induced Hyperthyroidism in Rats through the Regulation of Heat and Cold Imbalance (하고초추출물의 갑상선기능항진증 랫트모델에서의 한열조절작용에 의한 개선효능 연구)

  • Kang, An Na;Kang, Seok Yong;Meng, Xianglong;Ma, Junnan;Park, Jong Hun;Park, Yong-Ki
    • The Korea Journal of Herbology
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    • v.33 no.4
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    • pp.77-85
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    • 2018
  • Objective : This study was intended to examine the effects of water extract of Prunellae Spica (PS), which is a herb with 'cold' nature based on hot and cold theory of traditional Korean medicine. Methods : Hyperthyroidism was induced in SD rats by LT4 (0.5 mg/kg, i.p.) daily for four weeks. After 2 weeks of LT4 injection, rats were divided randomly into four groups; normal, LT4-induced hyperthyroid control, PS extract (500 mg/kg, p.o.)-treated group, and propylthiouracil (PTU, 10 mg/kg, s.c.)-treated positive group. After 2 weeks of drug treatment, all rats were sacrificed and harvested blood samples and thyroid tissues. The changes of body weight, food and water intake, and body temperature were measured weekly. Serological markers were analyzed in sera using an enzyme-based assay, and thyroid tissues were stained with Hematoxylin & Eosin (H&E). Brain and dorsal root ganglion (DRG) tissues were isolated and analyzed the expression of transient receptor potential (TRP) channels by Western blot. Results : PS extract administration attenuated the loss of body weight and the increase of body temperature in LT4-induced hyperthyroidism rats. PS extract increased the level of thyroid stimulating hormone (TSH) and decreased tiiodothyronine (T3) and tetraiodothyronine (T4). In action mechanism, PS extract regulated the expression of transient receptor potential channel subfamily V member 1 (TRPV1) and transient Receptor Potential channel subfamily M member 8 (TRPM8), the thermoregulators. Conclusion : To conclude, PS extract can improve the symptoms of hyperthyroidism through regulation of the thyroid hormones imbalance and thermoregulation via TRP channels.

Effect of Gocho(苦椒) Extract Mesotherapy on Regional Fat Loss in Obese Korean Women

  • Kim, Eun-Joo;Brodsky, Marc;Cho, Jae-Heung;Cho, Yu-Jeong;Song, Mi-Yeon
    • The Journal of Korean Medicine
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    • v.32 no.6
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    • pp.30-40
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    • 2011
  • Objectives: The purpose of this study was to determine whether gocho (苦椒) extract mesotherapy can effectively reduce weight and abdominal fat in obese patients. Methods: Forty obese participants were recruited and randomly assigned to two groups. Five participants dropped out voluntarily during the course of the study and four men were excluded from the analysis to avoid gender bias. Results are presented on a total of thirty-one women. Over an eight-week period, the treatment group (n=13) received gocho (苦椒) extract injections (100mcg/3cc) in the abdominal skin, twice per week; the control group (n=18) received normal saline injections (3cc). A mixed lidocaine and prilocaine cream (2.5%/2.5% EMLA cream) was applied before the injection. At baseline and 8 weeks, body weight, body-mass index (BMI), waist circumference (WC), waist-hip ratio (WHR), abdominal fat, energy expenditure, and questionnaires (eating attitudes and physical activity) were evaluated in both groups. Results: Reductions in body weight (p<0.005), BMI, and WC (p<0.05) were greater in the treatment group. WHR, total fat area, and visceral fat area decreased only in the treatment group (p<0.05). Resting metabolic rate (RMR) change was correlated with weight loss only in the control group (r=-0.498, p<0.05). Before and after the treatment, there were no significant differences between the two groups in questionnaire variables (p>0.05). Conclusion: his study suggests that abdominal gocho (苦椒) extract mesotherapy might be an effective way to promote weight and abdominal fat loss in obese Korean women.

Anti-obesity and Anti-hyperlipidemic Effects of Taeyeumjowee-tang and its modified prescription (태음조위탕(太陰調胃湯)과 그 가감방(加減方)의 항비만 및 항고지혈증 효과에 관한 연구)

  • Kim, Kil-Soo;Lee, Dong-Ung;Kim, Yong-Lae;Hwang, Moon-Je;Kim, Geun-Woo;Koo, Byung-Soo
    • Journal of Oriental Neuropsychiatry
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    • v.18 no.2
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    • pp.57-74
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    • 2007
  • Objective : The purpose of this study was to investigate the anti-obesity and anti-hyperlipidemic Effects of Taeyeumjowee-tang and its modified prescription on the animal model of obesity and hyperlipidemia induced high-fat diet. Method : 1) The extracts of Taeyeumjowee-tang (TJT) and its modified prescription, Taeyeumjoweetang gagam-bang (TJGB) were evaluated for its inhibitory effects on obesity. 2) The body weight and feed weight were determined in the pre-treated and post-treated mice and the lipid profiles in the serum were analyzed in order to evaluate the anti-hyperlipidemia action of the extracts. 3) The effect of each extract was investigated for the influences on monoamine oxidase activity and HMG-CoA reductase activity. Results 1. TJT and TJGB extracts dose-dependently reduced the body weight and feed intake in normal mice. The effect of TJGB extract was better than that of TJT extract. 2. TJGB extract diminished the body weight increase and reduced the feed intake in the pre-treatment or post-treatment of the extract 3. TJGB extract decreased the amount of total cholesterol slightly and triglyceride potently after the pre-treatment or post-treatment, but HDL cholesterol exhibited no remarkable change compared with control. 4. TJGB extract weakly potentiated the monoamine oxidase activity, but its effect was better than that of TJT extract. 5. TJGB extract weakly inhibited the HMG-CoA reductase activity, but its effect was better than that of TJT extract. Conclusion : Taeyeumjowee-tang and its modified prescription can clinically be useful as anti-obesity drug and also for the improvement of hyperlipidemia.

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Change of Ratio of Onchungeum Composition Induces Different G1 Arrest Mechanisms in Hep3B Cells (HMC05의 휜쥐를 이용한 단회경구투여 독성시험)

  • Shin, Heung-Mook
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.22 no.6
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    • pp.1562-1565
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    • 2008
  • HCMCO5 is a herbal extract which comprises of eight different herbs. We studied whether this prescription has an acute toxicity in rats. SPF Sprague-Dawley male and female rats were administered orally with HMC05 extract of 2,000 mg/kg for 14days. We examined mortality, clinical signs, body weights and gross findings during the tests. The result showed no dead animals. We also could not find a significant body weight changes during the experimental period. In addition, no differences were found between control and HMC05 treated groups in clinical signs and other findings. These results indicate that HMC05 extract did not show any toxic effects, and oral ADL value was over 2,000 mg/kg in SD rats.