Hypolipidemic effects of Myrica rubra extracts and main compounds in C57BL/6j mice

2016 ◽  
Vol 7 (8) ◽  
pp. 3505-3515 ◽  
Author(s):  
Kai He ◽  
Xuegang Li ◽  
Yubo Xiao ◽  
Yang Yong ◽  
Zaiqi Zhang ◽  
...  

The present study evaluated the antihyperlipidemic activity of myricetin, myricetrin, the alcohol fraction (AF) and the ethyl acetate fraction (EF) obtained from the bark of Myrica rubra (MR) in high-fat and high-cholesterol (HFHC) induced hyperlipidemic C57BL/6j mice.


Nutrients ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 2433
Author(s):  
Hwi-Jin Im ◽  
Seung-Ju Hwang ◽  
Jin-Seok Lee ◽  
Sung-Bae Lee ◽  
Ji-Yun Kang ◽  
...  

The global prevalence of nonalcoholic fatty liver disease (NAFLD) is estimated to be 25% and has continued to increase; however, no drugs have yet been approved for NAFLD treatments. The ethyl acetate fraction of Amomum xanthioides (EFAX) was previously reported to have an anti-hepatic fibrosis effect, but its effects on steatosis or steatohepatitis remain unclear. This study investigated the anti-fatty liver of EFAX using a high-fat diet mouse model. High-fat diet intake for 8 weeks induced hepatic steatosis with mild inflammation and oxidative damage and increased the adipose tissue weight along with the development of dyslipidemia. EFAX treatment significantly ameliorated the steatohepatic changes, the increased weight of adipose tissues, and the altered serum lipid profiles. These observed effects were possibly due to the lipolysis-dominant activity of EFAX on multiple hepatic proteins including sterol regulatory element-binding protein (mSREBP)-1c, peroxisome proliferator-activated receptor (PPAR)-α, AMP-activated protein kinase, and diglyceride acyltransferases (DGATs). Taken together, these results show that EFAX might be a potential therapeutic agent for regulating a wide spectrum of NAFLDs from steatosis to fibrosis via multiple actions on lipid metabolism-related proteins. Further studies investigating clear mechanisms and their active compounds are needed.



Author(s):  
PRISKA ERNESTINA TENDA ◽  
ELEONORA MARYETA TOYO ◽  
ARBA PRAMUNDITA RAMADANI

Objectives: To evaluate the effect of extract and its fraction (n-hexane, ethyl acetate, and water) of the mulberry leaf (Morus australis Poir.) in reducing triglyceride and total cholesterol levels on HFD and PTU induced rats. Methods: In this study, mulberry leaves were collected from East Nusa Tenggara-Indonesia, extracted using maceration method, and fractionated with various solvents. The thin layer chromatography with silica gel 60 F254 was utilized to identify the active compound on both extract and fraction. Furthermore, using a quasi-experimental with control group design, this study employed 40 healthy male Wistar rats and divided into 8 groups, namely: normal and negative control, positive controls (simvastatin and gemfibrozil), ethanolic extract, and fractions (n-hexane, ethyl acetate, and water). All groups were fed with a high cholesterol diet and 0.01% PTU, except for the normal group. During the study, the blood was drawn at day 0, 28, 35, and 42. The triglyceride level was observed using Glycerophosphate-Oxidase Phenol Aminoantipyrine (GPO-PAP) method, while the total cholesterol was measured by Cholesterol Oxidase Phenol Aminoantipyrine (CHOD-PAP). Results: On the 42nd day, ethyl fraction of mulberry leaf (Morus australis Poir.) showed the most significant result of reducing the level of triglyceride and total cholesterol compared to the high-fat diet and PTU induced rat on day 0: triglyceride of 104.89±2.70 mg/dl vs 64.76±1.97 mg/dl and total cholesterol of 96.70±2.45 vs 88.02±1.38 mg/dl. Ethyl acetate fraction was similar to simvastatin in lowering the level of total cholesterol. TLC identification also showed that mulberry leaf contains flavonoids and polyphenols that act as anti-hyperlipidemic. Conclusion: Ethyl acetate fraction of mulberry leaf (Morus australis Poir.) showed best activity on lowering both triglyceride and total cholesterol.



2013 ◽  
Vol 16 (3) ◽  
pp. 23-29 ◽  
Author(s):  
Balasubramanian Thirumalaisamy ◽  
Senthilkumar Gnanavadevel Prabhakaran ◽  
Karthikeyan Marimuthu ◽  
Tapan Kumar Chatterjee




2019 ◽  
Vol 10 (04) ◽  
pp. 646-650
Author(s):  
Hyeusoo Kim ◽  
Kyeong Won Yun

The fruit of Rosa multiflora has been used as traditional herbal medicine in Asian countries. The present investigation was undertaken to study the antimicrobial activity and total polyphenol content of hexane, ether, ethyl acetate, water fraction of methanol extract of fruit and flower from Rosa multiflora and Rosa wichuraiana. Antimicrobial activity of the mentioned fractions against 3 gram-positive and 4 gram-negative bacteria using disk diffussion method. The measurement of minimal inhibition concentration (MIC) showed that the ethyl acetate fraction of the two Rosa species is the most effective against the tested bacteria. The total polyphenol content of ethyl acetate fraction of the two Rosa species is higher than the other fractions. The results indicate the antimicrobial activity was related with the total polyphenol content and the fruit and flower of the two Rosa species can be considered as a natural source of antimicrobial agents.



2019 ◽  
Vol 5 (3) ◽  
pp. 11-20
Author(s):  
Stefani Dhale Rale ◽  
Hasim Hasim ◽  
Syamsul Falah

This study aims to find the treatment of diabetes using natural materials by exploring plants in the province of East Nusa Tenggara. his research was conducted out by extracting the Strychnos nitida G.Don stem using a method of maceration by ethanol 70%. Ethanol extract was then fractionated using n-hexane and ethyl acetate. Simplicia from maceration and fractionation results were then tested for antioxidant activity, α-glucosidase inhibition activity and identification of active compounds. The results showed that ethyl acetate fraction had the lowest IC50 value of 86.83 μg / ml. Results of the α-glucosidase activity test showed that ethyl acetate fraction and n-heksan fraction at 900 ppm had the highest percentage of inhibition of 34.23% and 33.89%. Identification using LCMS/MS method showed that ethyl acetate fraction consist of Benzenemethamine, N, N-dioctyl- as an antioxidantcompound and compound 24-methyl-5-cholestone-hexol as an antidiabetic compound. From the results of this study, we concluded that the extract of kayu ular Strychnos nitida G.Don stem has inhibition activity toward α-glucosidase enzyme.



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