scholarly journals The Protection of Lactic Acid Bacteria Fermented-Mango Peel against Neuronal Damage Induced by Amyloid-Beta

Molecules ◽  
2021 ◽  
Vol 26 (12) ◽  
pp. 3503
Author(s):  
Bao-Hong Lee ◽  
Wei-Hsuan Hsu ◽  
Chih-Yao Hou ◽  
Hao-Yuan Chien ◽  
She-Ching Wu
Keyword(s):  
Oxidative Stress ◽  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Amyloid Beta ◽  
Neuronal Damage ◽  
Neural Cells ◽  
Bdnf Expression ◽  
Neuronal Protection ◽  
Mango Peel ◽  
Mango Peels

Mango peels are usually discarded as waste; however, they contain phytochemicals and could provide functional properties to food and promote human health. This study aimed to determine the optimal lactic acid bacteria for fermentation of mango peel and evaluate the effect of mango peel on neuronal protection in Neuron-2A cells against amyloid beta (Aβ) treatment (50 μM). Mango peel can be fermented by different lactic acid bacteria species. Lactobacillus acidophilus (BCRC14079)-fermented mango peel produced the highest concentration of lactic acid bacteria (exceeding 108 CFU/mL). Mango peel and fermented mango peel extracts upregulated brain-derived neurotrophic factor (BDNF) expression for 1.74-fold in Neuron-2A cells. Furthermore, mango peel fermented products attenuated oxidative stress in Aβ-treated neural cells by 27%. Extracts of L. acidophilus (BCRC14079)-fermented mango peel treatment decreased Aβ accumulation and attenuated the increase of subG1 caused by Aβ induction in Neuron-2A cells. In conclusion, L. acidophilus (BCRC14079)-fermented mango peel acts as a novel neuronal protective product by inhibiting oxidative stress and increasing BDNF expression in neural cells.

scholarly journals Protective effects of a cocktail of lactic acid bacteria on microcystin-LR-induced hepatotoxicity and oxidative damage in BALB/c mice

RSC Advances ◽  
2017 ◽  
Vol 7 (33) ◽  
pp. 20480-20487 ◽  
Author(s):  
Jichun Zhao ◽  
Fengwei Tian ◽  
Qixiao Zhai ◽  
Ruipeng Yu ◽  
Hao Zhang ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Oxidative Damage ◽  
Protective Effects ◽  
And Oxidative Stress

The aim of this study was to investigate the effects of mixed lactic acid bacteria (LAB) against microcystin-LR-exposed hepatotoxicity and oxidative stress in BALB/c mice.

scholarly journals Inhibition of Nitric Oxide Production, Oxidative Stress Prevention, and Probiotic Activity of Lactic Acid Bacteria Isolated from the Human Vagina and Fermented Food

2019 ◽  
Vol 7 (4) ◽  
pp. 109 ◽  
Author(s):  
Chang-Ho Kang ◽  
Seul Hwa Han ◽  
Jin-Seong Kim ◽  
YongGyeong Kim ◽  
Yulah Jeong ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Nitric Oxide ◽  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Radical Scavenging ◽  
Fermented Food ◽  
Nitric Oxide Production ◽  
Oxide Production ◽  
Probiotic Potential ◽  
Culture Filtrates

In this study, lactic acid bacteria (LAB) with antioxidative and probiotic activities were isolated from the vaginas of Korean women and from fermented food. Among 34 isolated LAB strains, four strains (MG4221, MG4231, MG4261, and MG4270) exhibited inhibitory activity against nitric oxide production. The MG4221 and MG4270 strains were identified as Lactobacillus plantarum, and MG4231 and MG4261 were identified as Lactobacillus fermentum. These strains were able to tolerate pepsin and pancreatin, which is required for probiotic potential. The antioxidant effects of culture filtrates obtained from selected strains included 2,2-diphenyl-1-picryl-hydrazyl (DPPH) radical scavenging capacity. Most of the culture filtrates had effective DPPH scavenging activity.In conclusion, the selected strains have significant activities and are potentially applicable to the development of functional foods. These strains might also contribute to the prevention and control of several diseases associated with oxidative stress, when used as functional probiotics.

scholarly journals Therapeutic Hypothermia Improves Hind Limb Motor Outcome and Attenuates Oxidative Stress and Neuronal Damage in the Lumbar Spinal Cord Following Cardiac Arrest

Antioxidants ◽  
2020 ◽  
Vol 9 (1) ◽  
pp. 38
Author(s):  
Ji Hyeon Ahn ◽  
Tae-Kyeong Lee ◽  
Bora Kim ◽  
Jae-Chul Lee ◽  
Hyun-Jin Tae ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Spinal Cord ◽  
Therapeutic Hypothermia ◽  
Hind Limb ◽  
Neuronal Damage ◽  
Ventral Horn ◽  
Lumbar Spinal Cord ◽  
Neuronal Protection ◽  
Endogenous Antioxidants ◽  
Lumbar Spinal

Hypothermia enhances outcomes of patients after resuscitation after cardiac arrest (CA). However, the underlying mechanism is not fully understood. In this study, we investigated effects of hypothermic therapy on neuronal damage/death, microglial activation, and changes of endogenous antioxidants in the anterior horn in the lumbar spinal cord in a rat model of asphyxial CA (ACA). A total of 77 adult male Sprague–Dawley rats were randomized into five groups: normal, sham ACA plus (+) normothermia, ACA + normothermia, sham ACA + hypothermia, and ACA + hypothermia. ACA was induced for 5 min by injecting vecuronium bromide. Therapeutic hypothermia was applied after return of spontaneous circulation (ROSC) via rapid cooling with isopropyl alcohol wipes, which was maintained at 33 ± 0.5 °C for 4 h. Normothermia groups were maintained at 37 ± 0.2 °C for 4 h. Neuronal protection, microgliosis, oxidative stress, and changes of endogenous antioxidants were evaluated at 12 h, 1 day, and 2 days after ROSC following ACA. ACA resulted in neuronal damage from 12 h after ROSC and evoked obvious degeneration/loss of spinal neurons in the ventral horn at 1 day after ACA, showing motor deficit of the hind limb. In addition, ACA resulted in a gradual increase in microgliosis with time after ACA. Therapeutic hypothermia significantly reduced neuronal loss and attenuated hind limb dysfunction, showing that hypothermia significantly attenuated microgliosis. Furthermore, hypothermia significantly suppressed ACA-induced increases of superoxide anion production and 8-hydroxyguanine expression, and significantly increased superoxide dismutase 1 (SOD1), SOD2, catalase, and glutathione peroxidase. Taken together, hypothermic therapy was found to have a substantial impact on changes in ACA-induced microglia activation, oxidative stress factors, and antioxidant enzymes in the ventral horn of the lumbar spinal cord, which closely correlate with neuronal protection and neurological performance after ACA.

Protective Effect of Kaempferol on the Transgenic Drosophila Model of Alzheimer’s Disease

2018 ◽  
Vol 17 (6) ◽  
pp. 421-429 ◽  
Author(s):  
Tanveer Beg ◽  
Smita Jyoti ◽  
Falaq Naz ◽  
Rahul ◽  
Fahad Ali ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Amyloid Beta ◽  
Neuronal Damage ◽  
Natural Antioxidants ◽  
Acetylcholinesterase Activity ◽  
Model Of Alzheimer’S Disease ◽  
Climbing Ability ◽  
Transgenic Drosophila

Background: Alzheimer’s disease (AD) is characterized by the accumulation and deposition of β-amyloid peptides leading to a progressive neuronal damage and cell loss. Besides several hypotheses for explaining the neurodegenerative mechanisms, oxidative stress has been considered to be one of them. Till date, there is no cure for AD, but the pathogenesis of the disease could be delayed by the use of natural antioxidants. In this context, we decided to study the effect of kaempferol against the transgenic Drosophila expressing human amyloid beta-42. Method: The AD flies were allowed to feed on the diet having 10, 20, 30 and 40µM of kaempferol for 30 days. After 30 days of exposure, the amyloid beta flies were studied for their climbing ability and Aversive Phototaxis Suppression assay. Amyloid beta flies head homogenate was prepared for estimating the oxidative stress markers, Caspase and acetylcholinesterase activity. Results: The results of the present study reveal that the exposure of AD flies to kaempferol delayed the loss of climbing ability, memory, reduced the oxidative stress and acetylcholinesterase activity. Conclusion: Kaempferol could be used as a possible therapeutic agent against the progression of the Alzheimer’s disease.

Pre- and post-treatments with escitalopram protect against experimental ischemic neuronal damage via regulation of BDNF expression and oxidative stress

2011 ◽  
Vol 229 (2) ◽  
pp. 450-459 ◽  
Author(s):  
Choong Hyun Lee ◽  
Joon Ha Park ◽  
Ki-Yeon Yoo ◽  
Jung Hoon Choi ◽  
In Koo Hwang ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Neuronal Damage ◽  
Bdnf Expression ◽  
And Oxidative Stress

scholarly journals Isolation of lactic acid bacteria capable of reducing environmental alkyl and fatty acid hydroperoxides, and the effect of their oral administration on oxidative-stressed nematodes and rats

2019 ◽  
Author(s):  
Akio Watanabe ◽  
Takuro Yamaguchi ◽  
Kaeko Murota ◽  
Tadaaki Ishii ◽  
Junji Terao ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Lipid Peroxidation ◽  
Lactic Acid ◽  
Fatty Acid ◽  
Lactic Acid Bacteria ◽  
Lactic Acid Bacterium ◽  
Alkyl Hydroperoxides ◽  
Oxygen Sensitive ◽  
Electron Reduction ◽  
Fatty Acid Hydroperoxides

AbstractReinforcement of hydroperoxide-eliminating activity in the intestines and colon should prevent associated diseases. We previously isolated a lactic acid bacterium,Pediococcus pentosaceusBe1, that facilitates a 2-electron reduction of hydrogen peroxide to water. In this study, we successfully isolated an alternative lactic acid bacterium,Lactobacillus plantarumP1-2, that can efficiently reduce environmental alkyl hydroperoxides and fatty acid hydroperoxides to their corresponding hydroxy derivatives through a 2-electron reduction. Each strain exhibited a wide concentration range with regard to the environmental reducing activity for each hydroperoxide. Given this, the two lactic acid bacteria were orally administered to the oxygen-sensitive short-lived nematode mutant, and this resulted in a significant expansion of its lifespan. This observation suggests thatP. pentosaceusBe1 andL. plantarumP1-2 inhibit internal oxidative stress. To determine the specific organs involved in this response, we performed a similar experiment in rats, involving induced lipid peroxidation by iron-overloading. We observed that onlyL. plantarumP1-2 inhibited colonic mucosa lipid peroxidation in rats with induced oxidative stress.

The antioxidant activity of Lactic acid bacteria and probiotics: a review

2021 ◽  
Author(s):  
Azita Faraki ◽  
Fatemeh Rahmani
Keyword(s):  
Oxidative Stress ◽  
Antioxidant Activity ◽  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Natural Antioxidants ◽  
Oxidation Reactions ◽  
Synthetic Antioxidants ◽  
In Vivo Models ◽  
Positive Effects

Probiotics and Lactic Acid Bacteria play important roles such as the production of antimicrobial compounds and other metabolites. So they have positive effects on human health. When reactive oxygen species generated in excess or cellular defenses are deficient, biomolecules can be damaged by the oxidative stress process. Various studies have shown that the best way to protect the human body from the effects of oxidation reactions is to avoid them, which can be accomplished by using antioxidants. Due to the damages of synthetic antioxidants, their usage has been discussed. Nowadays natural antioxidants derived from bio-resources have recently gained a lot of attention as a potential replacement for synthetic antioxidants. Probiotic bacteria are thought to defend against oxidative stress by restoring the gut microbiota, according to hypothesis of some scientists. This type of microorganisms indicated their antioxidant activity by producing and increasing antioxidant enzymes, production of secondary metabolites, small hydrolyzed peptides in food, resistance to the presence of hydrogen peroxide, and production of intracellular and extracellular compounds such as Exopolysaccharides. Also, they have shown their positive effect on in vivo models. In conclusion, according to the results of studies, lactic acid bacteria and probiotics are significant sources of natural antioxidants. Therefore, they have important research value and market development potential. Also, it should be noted that the mechanism of antioxidant activity of this group of microorganisms has not been fully investigated, this requires further research.

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