Lactobacilli modulated AMPK activity and prevented telomere shortening in ageing rats

2019 ◽  
Vol 10 (8) ◽  
pp. 883-892
Author(s):  
L.C. Lew ◽  
Y.Y. Hor ◽  
M.H. Jaafar ◽  
A.S.Y. Lau ◽  
J.S. Ong ◽  
...  

This study aimed to evaluate the anti-ageing effects of different strains of lactobacilli putative probiotics on an ageing rat model as induced by D-galactose and a high fat diet. Male Sprague-Dawley rats were fed with high fat diet (54% kcal fat) and injected with D-galactose daily for 12 weeks to induce ageing. The effects of putative probiotic strains on age-related impairment such as telomere length, plasma lipid peroxidation, hepatic 5’adenosine monophosphate-activated protein kinase (AMPK) expression, as well as endurance performance were evaluated. Administration of statin, Lactobacillus plantarum DR7 (LP-DR7), Lactobacillus fermentum DR9 (LF-DR9), and Lactobacillus reuteri 8513d (LR-8513d) significantly reduced the shortening of telomere and increased the expression of AMPK subunit-α1 (P<0.05). Plasma lipid peroxidation was lower (P<0.05) in groups administered with statin and LF-DR9 as compared to the control. AMPK subunit-α2 was elevated in rats administered with LP-DR7 as compared to the control (P<0.05). Using an in vivo ageing rat model, the current study has illustrated the potentials of lactobacilli putative probiotics in alleviation of age-related impairment in a strain-dependent manner.

2013 ◽  
Vol 26 (5) ◽  
pp. 571-581 ◽  
Author(s):  
Ângela Giovana Batista ◽  
Sabrina Alves Lenquiste ◽  
Carolin Moldenhauer ◽  
Juliana Teixeira Godoy ◽  
Soely Maria Pissini Machado Reis ◽  
...  

OBJECTIVE: The aim of this study was to evaluate the influence of high-fat diets with 1%, 2%, and 4% freeze-dried jaboticaba peel on the serum, liver, and fecal lipid profile of obese rats. METHODS: Thirty male Sprague-Dawley rats were divided into 5 groups. Obesity was induced in four groups using a high-fat diet (35% lipids). One group was used as a high-fat diet control (High-fat group - HF). The other three high-fat-diet groups were given 1%, 2%, and 4% freeze-dried jaboticaba peel (High-Fat Jaboticaba - HFJ1, HFJ2, and HFJ4, respectively) in the last 40 experimental days. Blood and the liver were collected after 70 days of treatment and feces were collected in the last experimental week. Total cholesterol, triglycerides, and lipids were measured in the serum, liver, and dried feces. ffer in the experimental groups. HFJ2 group had the highest hepatic and fecal lipid contents compared with the group fed a diet with normal fat content (N), but low hepatic lipid peroxidation. HFJ4 group had the highest mean hepatic and fecal cholesterol levels. Hepatic triglyceride levels did not differ among the groups, and groups HFJ1 and HFJ4 presented the highest fecal triglyceride content. CONCLUSION: The amounts of jaboticaba peel used by this study did not protect against hepatic steatosis or undesired levels of other studied lipids, but it did increase fecal triglycerides. Lipid peroxidation in the liver decreased in the HFJ2 group.


2017 ◽  
Vol 181 (2) ◽  
pp. 288-295 ◽  
Author(s):  
Seyedeh Neda Mousavi ◽  
Amirhosein Faghihi ◽  
Majid Motaghinejad ◽  
Maryam Shiasi ◽  
Fatemeh Imanparast ◽  
...  

Adipocyte ◽  
2015 ◽  
Vol 5 (1) ◽  
pp. 11-21 ◽  
Author(s):  
Cláudia Marques ◽  
Manuela Meireles ◽  
Sónia Norberto ◽  
Joana Leite ◽  
Joana Freitas ◽  
...  

2015 ◽  
Vol 114 (5) ◽  
pp. 706-712 ◽  
Author(s):  
Wei-Jen Ting ◽  
Wei-Wen Kuo ◽  
Chia-Hua Kuo ◽  
Yu-Lan Yeh ◽  
Chia-Yao Shen ◽  
...  

Obesity and hyperlipidaemia increase the risk of CVD. Some strains of probiotics have been suggested to have potential applications in cardiovascular health by lowering serum LDL-cholesterol. In this work, high-fat diet-induced hyperlipidaemia in hamsters was treated with different doses (5×108 and 2·5×109 cells/kg per d) of heat-killed Lactobacillus reuteri GMNL-263 (Lr263) by oral gavage for 8 weeks. The serum lipid profile analysis showed that LDL-cholesterol and plasma malondialdehyde (P-MDA) were reduced in the GMNL-263 5×108 cells/kg per d treatment group. Total cholesterol and P-MDA were reduced in the GMNL-263 2·5×109 cells/kg per d treatment group. In terms of heart function, the GMNL-263 2·5×109 cells/kg per d treatments improved the ejection fraction from 85·71 to 91·81 % and fractional shortening from 46·93 to 57·92 % in the high-fat diet-fed hamster hearts. Moreover, the GMNL-263-treated, high-fat diet-fed hamster hearts exhibited reduced Fas-induced myocardial apoptosis and a reactivated IGF1R/PI3K/Akt cell survival pathway. Interestingly, the GMNL-263 treatments also enhanced the heat-shock protein 27 expression in a dose-dependent manner, but the mechanism for this increase remains unclear. In conclusion, supplementary heat-killed L. reuteri GMNL-263 can slightly reduce serum cholesterol. The anti-hyperlipidaemia effects of GMNL-263 may reactivate the IGF1R/PI3K/Akt cell survival pathway and reduce Fas-induced myocardial apoptosis in high-fat diet-fed hamster hearts.


2016 ◽  
Vol 13 (2) ◽  
pp. 82
Author(s):  
Novidiyanto Novidiyanto ◽  
Arta Farmawati ◽  
Lily Arsanti Lestari

Background: High-fat diet increases the levels of fat, especially cholesterol and triglycerides that cause hyperlipidemia. Polyunsaturated fatty acids are very easily oxidized by free radicals reactive oxygens species (ROS) called lipid peroxidation, to produce compounds that malondialdehyde (MDA), is toxic and can damage plasma membrane and liver tissue. Mung bean sprouts are known to contain antioxidants which act to inhibit lipid peroxidation process.Objective: Determine the effect of mung bean sprouts to the level of plasma MDA and liver tissue of rats with high-fat diets.Method: This research is an experimental study with an only post-test design with the control group. Thirty-five male Sprague-Dawley rats were divided into 5 groups. Group K1 received fed standard; K2 received high-fat diet without mung bean sprouts. Group P1 received high-fat diet and mung bean sprouts dose of  0.5 mL/gBW. Group P2 received high-fat diet and mung bean sprouts dose of 1 mL/gBW. Group P3 received high-fat diet and vitamin E doses of 23 IU. All group were treated for 28 days. Analysis of MDA plasma and liver tissue performed after treatment.Results: Group K1 has plasma MDA levels of 1.17 ± 0.14 nmol/mL Mean MDA plasma level in the group K1 Group of K1 Mean MDA plasma level in the group K2 (39.7±0.19 nmol/mL) was higher than the group of K1 (1,17±0,14 nmol/mL), group P1 (2.94±0.09 nmol/mL), group P2 (1.73±0.08 nmol/mL) and group P3 (1.53±0.07 nmol/mL). Group K1 has liver tissue MDA Levels of 1,64±0,11 nmol/g. Mean MDA liver tissue level in the group of K2 (4.90±0.29 nmol/g) was higher than the group of P1 (3.68±0.45 nmol/g), group P2 (2.27±0.10 nmol/g), and group P3 (2.01±0.11 nmol/g).Conclusion: Level of MDA plasma and liver tissue of rat in group P1 and P2 was lower than a level of MDA plasma and liver tissue of rat in group K1, but higher than the level of MDA plasma and liver tissue of rat in group P3. There was a very strong correlation between the level of MDA plasma and liver tissue of rat was given the mung bean sprouts and high-fat diet.


2020 ◽  
Vol 11 (4) ◽  
pp. 6244-6249
Author(s):  
Pang Jyh Chyang ◽  
Mawaddah

Hordeum vulgare L. (Barley) is an ancient and essential cereal grain crop with the claim that it has the potential to reduce cholesterol level and to lower oxidation activity in the liver.However, it hasn’t been proven scientifically. Hence,this study was conducted to investigate the total phenolic content (TPC), total antioxidant activity (TAC) and liver peroxidation activity of barley aqueous and ethanol extractas well as assess the effect of ethanol extract on cholesterol level of high-fat diet rats. TAC of barley extract was determined by using ABTS (2,2-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt) assay andDPPH (2,2-diphenyl-1-picrylhydrazyl radical) assay. Meanwhile, Total Phenolic Content TPCwas determined by Folin-Ciocalteu assay. Atotal of 15 Sprague Dawley rats were tested for the lowering cholesterol properties in barley and its association with lipid peroxidation product (Melondialdhyhe level) by adding the barley into their daily diet. The result indicated that TAC and TPC value of ethanol barley extract was high. Barley ethanol extracts effectively lowering cholesterol level in Sprague Dawley rats. Meanwhile, the malondialdehyde level in the liver tissue was a significant difference between the high-fat diet group of rats and the high-fat diet group of rats treated with ethanol barley extract. Conclusion, ethanol barley extract possess more phenolic content, antioxidant component and reducing cholesterol level of high-fat diet rats.


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