• Journal of Korean Medicine for Obesity Research
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• v.21 no.1
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• pp.10-21
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• 2021

Objectives: Benign prostatic hyperplasia (BPH) is a progressive pathological condition characterized by excessive proliferation of the prostate. In this study, we evaluated the effect of Corni Fructus water extract (CF) on the promotion of prostate cell proliferation by dihydrotestosterone (DHT). Methods: The effect of CF on the proliferation of LNCaP prostate cells was evaluated, and DHT was treated to induce an in vitro BPH model. To study the mechanism of inhibition of cell proliferation and BPH by CF, changes in the expression of key factors related to cell cycle and BPH were investigated. We further investigated the effect on the production of reactive oxygen species (ROS) and nitric oxide (NO) to evaluate the antioxidant and anti-inflammatory efficacy of CF. Results: Inhibition of LNCaP cell proliferation by CF was associated with decreased expression of cyclin D1 and cyclin A and increased expression of cyclin-dependent kinase inhibitor p21. CF also suppressed expression of BPH inducing factors such as 5α-reductase type 2 and androgen receptor (AR) as well as prostate specific antigen (PSA). Furthermore, CF significantly blocked DHT-induced LNCaP cell proliferation and effectively attenuated DHT-induced expression of BPH mediators and cyclins. In addition, CF inhibited DHT-induced oxidative and inflammatory reactions by inhibiting production of ROS and NO. Conclusion: Our results demonstrated that CF probably acted as 5α-reductase type 2 inhibitor, preventing the 5α-reductase type 2-AR signaling pathway, thereby reducing the conversion of testosterone to DHT and the expression of PSA, which is at least correlated with the antioxidant and anti-inflammatory activities of CF.

• Nutrition Research and Practice
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• v.8 no.2
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• pp.158-164
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• 2014

BACKGROUD/OBEJECTIVES: This study aims to find out the effects of peanut sprout extracts on weight controls and protein expressions of transcription factors related to adipocyte differentiation and adipocytokine in rats under high-fat diets. MATERIALS/METHODS: Four week-old Sparague-Dawley (SD) were assigned to 4 groups; normal-fat (NF) diets (7% fat diet), high-fat (HF) diets (20% fat diet), high fat diets with low peanut sprout extract (HF + PSEL) diet (20% fat and 0.025% peanut sprout extract), and high fat diets with high peanut sprout extract (HF + PSEH) diet (20% fat and 0.05% peanut sprout extract). Body weight changes, lipid profiles in adipose tissue, and the mRNA protein expressions, such as peroxisome proliferator-activated receptor ${\gamma}$ ($PPAR{\gamma}$), CCAAT element binding protein ${\alpha}$ (C/EBP ${\alpha}$), leptin, and adiponectin, were determined. RESULTS: After 9 weeks of feeding, the HF + PSEH group had significantly less weight gains than the HF group (P < 0.05). However, the total dietary intakes or food efficiency ratios among groups were not significantly different. The weight of epididymal fat in HF + PSEH group, $3.61{\pm}0.5g$, or HF + PSEL group, $3.80{\pm}0.7g$, was significantly lower than the HF group, $4.39{\pm}0.4g$, (P < 0.05). Total lipids and total cholesterol in adipose tissue were significantly decreased in HF + PSEH group compared to those in the HF group, respectively (P < 0.05). PSEH supplementation caused AST and ALT levels to decrease when it compared to HF group, but it was not statistically significant. The protein expression of $PPAR{\gamma}$ in HF + PSEH group was significantly lower than the HF group (P < 0.05). Comparing with the HF group, the protein expression of adiponectin in HF + PSEH group was significantly increased (P < 0.05). The protein expressions of C/EBP ${\alpha}$ and leptin in HF + PSEH group were lower than the HF group, but it was not statistical significant. CONCLUSIONS: In conclusion, peanut sprout extract has anti-obesity effect by lowering the expressions of $PPAR{\gamma}$ which regulates the expression of adiponectin.

• Food Science of Animal Resources
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• v.33 no.2
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• pp.276-280
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• 2013

Obesity, the leading metabolic disease, is a prevalent health problem in industrialized countries and is closely associated with coronary heart disease, hypertension, diabetes, and even cancer. In this study, we investigated the effects of dip-sauce for meat containing Garcinia cambogia extract (GC) on the lipid accumulation and body weight reduction in rats fed high-fat diet for three months. Eighteen Sprague Dawley male rats of five-week-old were randomly assigned to one of three groups; normal chew diet (NCD) group, high-fat diet plus GC-noncontaining dip-sauce (HFD) group, and HFD plus GC-containing dip-sauce (HFD+GC) group. Co-administration of GC-containing dip-sauce (5 g/kg body weight/day) with HFD significantly attenuated cumulative body weight gain, compared with NCD or HFD groups. Both epididymal and perirenal fat pad weights in the HFD plus GC group were significantly lower than those of HFD or NCD groups. Administration of GC-containing dip-sauce also resulted in significant reduction in the serum levels of total cholesterol, total lipid, and triglyceride, compared with NCD or HFD groups. Thus, GC-containing dip-sauce confers beneficial effects to pathological states associated with metabolic disorder via its anti-obesity and lipid lowering properties.

• Journal of Korean Medicine Rehabilitation
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• v.15 no.2
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• pp.117-117
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• 2005

Objectives : This experimental study was designed to investigate the effect of SBY-III extract on the weight, cell size of epididymal fat-pad, fat accumulation area in liver, serum lipid level and UCP1 mRNA in brown adipose tissue of high fat diet-fed obese rats continued by high fat diet and regulated by normal Diet. Methods : The body weight gain, weight of the internal organs(epididymis, liver, brown adipose tissue), insulin, triglyceride, total cholesterol, total lopod, free fatty acid, expression of UCP1 mRNA were measured in high fat diet-fed obese rats continued by high fat diet and regulated by normal diet. The experimental study are divided into exp-I and exp-II. Each study was administered normal diet, high fat diet and SBY-III according to each situation. Normal group is normal diet for 8 weeks. Exp-I are divided into control group(high fat diet for 8 weeks) and sample group(high fat diet for 8 weeks and SBY-III for last 2 weeks). Exp-II are divided into control group(high fat diet for 6 weeks and normal diet for 2 weeks) and sample group(high fat diet for 6 weeks and normal diet with SBY-III for 2 weeks). These were then compared mutually. Results : 1. Irrespective of diet control, sample group taken SBY-III showed the more effective decrease of weight gain than control group and diet control-fed sample group with SBY-III showed the more effective decrease of weight loss including weight gain than control group. 2. Irrespective of diet control, sample group taken SBY-III showed the more effective decrease cell size of epididymal fat-pad, fat accumulation area in liver than control group. 3. Non diet control-fed sample group taken SBY-III showed the more effective decrease of serum triglyceride, total lipid, free fatty acid than control group and diet control-fed sample group taken SBY-III showed the decrease of serum triglyceride, free fatty acid than control group. 4. Only diet control-fed sample group taken SBY-III showed the decrease of UCP1 volume. Conclusions : These results shows that SBY-III has effects on anti-obesity, especially keeping pace with diet control.

• Development and Reproduction
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• v.21 no.3
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• pp.259-267
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• 2017

Present study aimed to determine the effect of 'bitter melon', a popularly used fruit in Bangladesh and several other Asian countries, on high-fat-diet-induced type 2 diabetes. To investigate the effect, ethanol extract from bitter melon (BME) as a dietary supplement with mouse chow was used. BME was found to significantly attenuate the high-fat diet (HFD) -induced body weight and total fat mass. BME also effectively reduced the insulin resistance induced by the HFD. Furthermore, dietary supplementation of BME was highly effective in increasing insulin sensitivity and reducing hepatic fat and obesity. These results indicate that BME could be effective in attenuating type 2 diabetes and could therefore be a preventive measure against type 2 diabetes.

• Biomolecules & Therapeutics
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• v.24 no.2
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• pp.171-177
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• 2016

Statins, HMG-CoA reductase inhibitors, are known to cause serious muscle injuries (e.g. myopathy, myositis and rhabdomyolysis), and these adverse effects can be rescued by co-administration of coenzyme $Q_{10}$ ($CoQ_{10}$) with statins. The goal of the current research is to assess the efficacy of combined treatment of $CoQ_{10}$ with Atorvastatin for hyperlipidemia induced by high-fat diet in SD rats. 4-week-old Sprague-Dawley male rats were fed normal diet or high-fat diet for 6 weeks. Then, rats were treated with either Statin or Statin with various dosages of $CoQ_{10}$ (30, 90 or 270 mg/kg/day, p.o.) for another 6 weeks. Compared to Statin only treatment, $CoQ_{10}$ supplementation significantly reduced creatine kinase and aspartate aminotransferase levels in serum which are markers for myopathy. Moreover, $CoQ_{10}$ supplementation with Statin further reduced total fat, triglycerides, total cholesterol, and low-density lipoprotein-cholesterol. In contrast, the levels of high-density lipoprotein-cholesterol and $CoQ_{10}$ were increased in the $CoQ_{10}$ co-treated group. These results indicate that $CoQ_{10}$ treatment not only reduces the side effects of Statin, but also has an anti-obesity effect. Therefore an intake of supplementary $CoQ_{10}$ is helpful for solving problem of obese metabolism, so the multiple prescription of $CoQ_{10}$ makes us think a possibility that can be solved in being contiguous to the obesity problem, a sort of disease of the obese metabolism.

• Journal of Korean Medicine for Obesity Research
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• v.19 no.2
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• pp.89-96
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• 2019

Objectives: We investigated whether membrane free stem cell extract from adipose tissue (MFSCE) has anti-diabetic effect. Methods: To determine glucose uptake effect of MFSCE, we carried out glucose uptake assay in 3T3-L1 adipocytes. The regulatory mechanisms of MFSCE on glucose uptake were examined by Western blot analysis. Results: When MFSCE was treated to adipocytes at the concentration of 0.5, 1, 2.5, and 5 ㎍/mL, 2-deoxyglucose-6-phosphate uptake was elevated approximately 1.8-fold compared to cells not treated with MFSCE. It indicated that MFSCE enhances glucose uptake in 3T3-L1 adipocytes. In addition, MFSCE reduced phosphorylation of insulin receptor substrate-1 at serine 307 and induced Akt and glucose transporter 4 protein expressions that were related to insulin signaling. Furthermore, MFSCE regulated adenosine monophosphate-activated protein kinase (AMPK) pathway by increases of increase phosphorylation of AMPK and acetyl-CoA carboxylase that were related to AMPK pathway. Conclusions: These results indicated that MFSCE promotes glucose uptake via modulation of insulin signaling and AMPK pathway. Therefore, MFSCE could be a promising agent for treatment of diabetes mellitus.

• Journal of Ginseng Research
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• v.47 no.3
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• pp.400-407
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• 2023

Background: Rb3 is a ginsenoside with anti-inflammatory properties in many cell types and has been reported to attenuate inflammation-related metabolic diseases such as insulin resistance, nonalcoholic fatty liver disease, and cardiovascular disease. However, the effect of Rb3 on podocyte apoptosis under hyperlipidemic conditions, which contributes to the development of obesity-mediated renal disease, remains unclear. In the current study, we aimed to investigate the effect of Rb3 on podocyte apoptosis in the presence of palmitate and explore its underlying molecular mechanisms. Methods: Human podocytes (CIHP-1 cells) were exposed to Rb3 in the presence of palmitate as a model of hyperlipidemia. Cell viability was assessed by MTT assay. The effects of Rb3 on the expression of various proteins were analyzed by Western blotting. Apoptosis levels were determined by MTT assay, caspase 3 activity assay, and cleaved caspase 3 expression. Results: We found that Rb3 treatment alleviated the impairment of cell viability and increased caspase 3 activity as well as inflammatory markers in palmitate-treated podocytes. Treatment with Rb3 dosedependently increased PPARδ and SIRT6 expression. Knockdown of PPARδ or SIRT6 reduced the effects of Rb3 on apoptosis as well as inflammation and oxidative stress in cultured podocytes. Conclusions: The current results suggest that Rb3 alleviates inflammation and oxidative stress via PPARδ-or SIRT6-mediated signaling, thereby attenuating apoptosis in podocytes in the presence of palmitate. The present study provides Rb3 as an effective strategy for treating obesity-mediated renal injury.

• Korean Journal of Food Science and Technology
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• v.41 no.3
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• pp.320-325
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• 2009

The present study was carried out to investigate the acute oral toxicity and anti-obesity effects of a diglyceride preparation containing conjugated linoleic acid (DG+CLA). To test its acute oral toxicity, the DG+CLA was injected into 30 rats (15 males and 15 females) at dosage of 2,000 mg/kg and 5,000 mg/kg. Mortality rates, clinical signs, and body weight changes were monitored for 14 days following administration. According to the results, the lethal dose ($LD_50$) of DG+CLA was determined as >5,000 mg/kg in both sexes. There were no significant changes in general conditions, clinical signs, body weight, and gross lesions between the vehicle control and DG+CLA groups. For the anti-obesity studies, obese Zucker rats were randomly divided into 4 groups and fed saline, soybean oil, diglyceride, and DG+CLA, respectively, for 8 weeks. The DG+CLA groups presented significant differences in body weight, food efficiency ratio, serum lipid levels, and fat weight. Overall, the results showed that the DG+CLA did not have acute oral toxicity and reduced body weight, serum lipid levels, and fat gain.

• Journal of the Korean Society of Food Science and Nutrition
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• v.38 no.12
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• pp.1707-1711
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• 2009

This study was conducted to investigate the effects of ethanol extract from Lycii folium (L. folium) leaves on obesity index, serum lipids, homocysteine, leptin, ghrelin, and glucose in obese rats. Sprague-Dawley rats were administrated high-fat diets to induce obesity. Then, obese rats were divided into three diet groups: a basal-diet obese group (BO group), high-fat diet obese group (FO group), and high-fat diet plus L. folium extract obese group (FLEO group). Three groups were each fed experimental diet for 8 weeks. There were no significant differences in body weight and FER among the groups. However, obesity index such as Ro？hrer index, Lee index, and T.M. index of FLEO group was significantly decreased as compared to FO group. While serum triglyceride of BO group was significantly decreased as compared to FO group, there were no significant differences in serum lipids, homocysteine, leptin, ghrelin and glucose between FLEO group and FO group. In conclusion, these results indicated that ethanol extract from L. folium leaves might be beneficial with anti-obese effect by reduction of obesity indices in obese rats.