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Antioxidant nutrients

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https://www.readbyqxmd.com/read/29156608/fatty-acids-antioxidants-and-physical-activity-in-brain-aging
#1
REVIEW
Hércules Rezende Freitas, Gustavo da Costa Ferreira, Isis Hara Trevenzoli, Karen de Jesus Oliveira, Ricardo Augusto de Melo Reis
Polyunsaturated fatty acids and antioxidants are important mediators in the central nervous system. Lipid derivatives may control the production of proinflammatory agents and regulate NF-κB activity, microglial activation, and fatty acid oxidation; on the other hand, antioxidants, such as glutathione and ascorbate, have been shown to signal through transmitter receptors and protect against acute and chronic oxidative stress, modulating the activity of different signaling pathways. Several authors have investigated the role of these nutrients in the brains of the young and the aged in degenerative diseases such as Alzheimer's and Parkinson's, and during brain aging due to adiposity- and physical inactivity-mediated metabolic disturbances, chronic inflammation, and oxidative stress...
November 20, 2017: Nutrients
https://www.readbyqxmd.com/read/29152240/nutrient-digestibility-hindgut-metabolites-and-antioxidant-status-of-dogs-supplemented-with-pomegranate-peel-extract
#2
Tony Jose, Ashok K Pattanaik, Sunil E Jadhav, Narayan Dutta, Shalini Sharma
The present study assessed the effect of dietary supplementation of pomegranate peel (methanolic) extract (PPE) on the nutrient digestibility, faecal fermentative metabolites and antioxidant status of dogs. Six medium-sized dogs of mixed breeds were allocated to two groups in a replicated cross-over design and fed a basal diet with and without supplementation of PPE at 50 mg/kg body weight. Each of the experimental periods consisted of 30 d, with a 21 d washout period in between. Results indicated that PPE supplementation led to no significant changes in nutrient digestibility except a trend of improvement (P = 0·070) in crude fibre digestibility...
2017: Journal of Nutritional Science
https://www.readbyqxmd.com/read/29151143/salinity-reduces-2-4-d-efficacy-in-echinochloa-crusgalli-by-affecting-redox-balance-nutrient-acquisition-and-hormonal-regulation
#3
Faisal Islam, Yuan Xie, Muhammad A Farooq, Jian Wang, Chong Yang, Rafaqat A Gill, Jinwen Zhu, Weijun Zhou
Distinct salinity levels have been reported to enhance plants tolerance to different types of stresses. The aim of this research is to assess the interaction of saline stress and the use of 2,4-D as a means of controlling the growth of Echinochloa crusgalli. The resultant effect of such interaction is vital for a sustainable approach of weed management and food production. The results showed that 2,4-D alone treatment reduces the chlorophyll contents, photosynthetic capacity, enhanced MDA, electrolyte leakage, and ROS production (H2O2, O2(·-)) and inhibited the activities of ROS scavenging enzymes...
November 18, 2017: Protoplasma
https://www.readbyqxmd.com/read/29141571/extra-virgin-olive-oil-and-cardiovascular-diseases-benefits-for-human-health
#4
Cristina Nocella, Vittoria Cammisotto, Luca Fianchini, Alessandra D'Amico, Marta Novo, Valentina Castellani, Lucia Stefanini, Francesco Violi, Roberto Carnevale
BACKGROUND AND OBJECTIVE: The cardioprotective properties of Mediterranean Diet were demonstrated for the first time from the Seven Country Study. In the last few decades, numerous epidemiological studies, as well as intervention trial, confirmed this observation, pointing out the close relationship between the Mediterranean diet and cardiovascular diseases. In this context, extra virgin olive oil (EVOO), the most representative component of this diet, seems to be relevant in lowering the incidence of cardiovascular events, including myocardial infarction and stroke...
November 14, 2017: Endocrine, Metabolic & Immune Disorders Drug Targets
https://www.readbyqxmd.com/read/29139074/excessive-use-of-nitrogenous-fertilizers-an-unawareness-causing-serious-threats-to-environment-and-human-health
#5
Moddassir Ahmed, Muhammad Rauf, Zahid Mukhtar, Nasir Ahmad Saeed
Farmers occasionally need to add nitrogen fertilizer to their farms and gardens to make available just the precise nutrients for their plants' growth. The applications of inorganic nitrogen fertilizers to various crops have been continuously increasing since last many decades globally. Although nitrogen fertilizer contributes substantially to yield enhancement, but excessive use of this manure has posed serious threats to environment and human health. Rate of nitrogen fertilizers application has a close relationship with nitrate accumulation in surrounding environment, groundwater, as well as leafy and root vegetables...
November 14, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29137484/the-role-of-endogenous-reactive-oxygen-species-in-cardiac-myocyte-autophagy
#6
J-P Wang, R-F Chi, J Liu, Y-Z Deng, X-B Han, F-Z Qin, B Li
Autophagy is implicated in the maintenance of cardiac homeostasis. Autophagy is activated in heart failure, in which reactive oxygen species (ROS) are increased. Exogenous ROS have been shown to induce cardiomyocyte autophagy alterations. However, little is known about the influences of physiological levels of endogenous ROS on cardiomyocyte autophagy. In the present study, we tested the hypothesis that endogenous ROS in cardiomyocytes play an important role in inducing autophagy. Cultured H9C2 cardiomyocytes or Sprague-Dawley rats were treated with the antioxidant N-acetyl-cysteine (NAC) or the superoxide dismutase mimic tempol under the basal or nutrient deprivation conditions...
November 10, 2017: Physiological Research
https://www.readbyqxmd.com/read/29127500/distinct-communities-of-poplar-endophytes-on-an-unpolluted-and-a-risk-element-polluted-site-and-their-plant-growth-promoting-potential-in-vitro
#7
C S Schmidt, P Lovecká, L Mrnka, A Vychodilová, M Strejček, M Fenclová, K Demnerová
Numerous studies demonstrated that endophytic microbes can promote plant growth and increase plant stress resistance. We aimed at isolating poplar endophytes able to increase their hosts' fitness both in nutrient-limited and polluted environments. To achieve this goal, endophytic bacteria and fungi were isolated from roots and leaves of hybrid poplars (Populus nigra × P. maximowiczii clone Max-4) on an unpolluted and a risk element-polluted site in the Czech Republic and subsequently screened by a number of in vitro tests...
November 10, 2017: Microbial Ecology
https://www.readbyqxmd.com/read/29123538/sex-specific-response-to-stress-in-populus
#8
REVIEW
Nataliya V Melnikova, Elena V Borkhert, Anastasiya V Snezhkina, Anna V Kudryavtseva, Alexey A Dmitriev
Populus is an effective model for genetic studies in trees. The genus Populus includes dioecious species, and the differences exhibited in males and females have been intensively studied. This review focused on the distinctions between male and female poplar and aspen plants under stress conditions, such as drought, salinity, heavy metals, and nutrient deficiency on morphological, physiological, proteome, and gene expression levels. In most studies, males of Populus species were more adaptive to the majority of the stress conditions and showed less damage, better growth, and higher photosynthetic capacity and antioxidant activity than that of the females...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29117733/analysis-of-17-polyphenolic-compounds-in-organic-and-conventional-legumes-by-high-performance-liquid-chromatography-diode-array-detection-hplc-dad-and-evaluation-of-their-antioxidant-activity
#9
Federica Giusti, Giovanni Caprioli, Massimo Ricciutelli, Elisabetta Torregiani, Sauro Vittori, Gianni Sagratini
Consumption of legumes has become popular among health-conscious consumers due to the high levels of nutrients such as proteins, dietary fibres, minerals, vitamins and micronutrients like polyphenols. Ten legumes cultivars organically and conventionally grown were compared regarding their chemical profiles in terms of total phenolic content (TPC), total anthocyanin content (TAC), total flavonoid content (TFC) and their antioxidant capacity. The chemical profiles (i.e. free phenolics and anthocyanins) were determined with aid of new high-performance liquid chromatography-diode array detection (HPLC-DAD) method able to identify two individual anthocyanins and 15 polyphenols...
November 8, 2017: International Journal of Food Sciences and Nutrition
https://www.readbyqxmd.com/read/29109733/plant-growth-promoting-rhizobacteria-in-amelioration-of-salinity-stress-a-systems-biology-perspective
#10
REVIEW
Gayathri Ilangumaran, Donald L Smith
Salinity affects plant growth and is a major abiotic stress that limits crop productivity. It is well-understood that environmental adaptations and genetic traits regulate salinity tolerance in plants, but imparting the knowledge gained towards crop improvement remain arduous. Harnessing the potential of beneficial microorganisms present in the rhizosphere is an alternative strategy for improving plant stress tolerance. This review intends to elucidate the understanding of salinity tolerance mechanisms attributed by plant growth promoting rhizobacteria (PGPR)...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29107903/multiwall-carbon-nanotubes-modulate-paraquat-toxicity-in-arabidopsis-thaliana
#11
Xiaoji Fan, Jiahui Xu, Michel Lavoie, W J G M Peijnenburg, Youchao Zhu, Tao Lu, Zhengwei Fu, Tingheng Zhu, Haifeng Qian
Carbon nanotubes can be either toxic or beneficial to plant growth and can also modulate toxicity of organic contaminants through surface sorption. The complex interacting toxic effects of carbon nanotubes and organic contaminants in plants have received little attention in the literature to date. In this study, the toxicity of multiwall carbon nanotubes (MWCNT, 50 mg/L) and paraquat (MV, 0.82 mg/L), separately or in combination, were evaluated at the physiological and the proteomic level in Arabidopsis thaliana for 7-14 days...
November 3, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/29105771/preharvest-treatments-with-salicylates-enhance-nutrient-and-antioxidant-compounds-in-plum-at-harvest-and-after-storage
#12
Alejandra Martínez-Esplá, Pedro J Zapata, Daniel Valero, Domingo Martínez-Romero, Huertas M Díaz-Mula, María Serrano
BACKGROUND: Previous reports have addressed the effectiveness of salicylic acid (SA), acetylsalicylic acid (ASA) and methylsalicylate (MeSA) postharvest treatments on maintaining quality properties along storage in several commodities. However, there is no literature regarding the effect of preharvest treatments with salicylates on plum quality attributes (at harvest or after long term cold storage), which was evaluated on this research. RESULTS: At harvest, weight, firmness, individual organic acids, sugars, phenolics, anthocyanins and total carotenoids were found at higher levels in plums from SA, ASA and MeSA treated trees than in those from controls...
November 6, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/29098735/glucose-and-lipid-metabolism-disorders-in-the-chickens-with-dexamethasone-induced-oxidative-stress
#13
Z-P Lv, Y-Z Peng, B-B Zhang, H Fan, D Liu, Y-M Guo
The purpose of this study was to investigate the effects of long-term treatment with dexamethasone (DEX) on the antioxidation and nutrition metabolism in broiler chickens. Broilers were placed on a high-nutrient diet for 41 days, and half were given orally DEX-supplemented water at 20 mg/L every other day from 19 to 41 days of age. DEX treatment downregulated superoxide dismutase activity as well as the mRNA expression of CuZn-superoxide dismutase and glutathione peroxidase with a decrease in GSH/GSSG ratio and an increase in malondialdehyde level in the liver of broilers...
November 3, 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/29095011/consumption-of-nutrients-with-antioxidant-action-and-its-relationship-with-lipid-profile-and-oxidative-stress-in-student-users-of-a-university-restaurant
#14
Sueli Maria Teixeira Lima, Kaluce Gonçalves De Sousa Almondes, Kyria Jayanne Clímaco Cruz, Heila Dias de Sousa Pinho Aguiar, Camila Maria Simplício Revoredo, Betzabeth Slater, Jennifer Beatriz Silva Morais, Dilina Do Nascimento Marreiro, Nadir Do Nascimento Nogueira
INTRODUCTION: The relationship between diet and health has aroused scientific interest, especially the consumption of antioxidant nutrients naturally present in foods, because of its action against the deleterious effects of free radicals in the body. OBJECTIVE: This study aimed to estimate the intake of antioxidant nutrients and its relationship with lipid profile and oxidative stress in student users of a university restaurant in comparison with non-users. METHODS: This cross-sectional study involved 145 university students divided into two groups: users of the university restaurant (group 1, n = 73) and non-users (group 2, n = 72)...
July 28, 2017: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/29080460/chlorogenic-acid-cga-a-pharmacological-review-and-call-for-further-research
#15
REVIEW
Muhammad Naveed, Veghar Hejazi, Muhammad Abbas, Asghar Ali Kamboh, Ghulam Jilany Khan, Muhammad Shumzaid, Fawwad Ahmad, Daryoush Babazadeh, Xia FangFang, Faezeh Modarresi-Ghazani, Li WenHua, Zhou XiaoHui
Phenolic acids have recently gained substantial attention due to their various practical, biological and pharmacological effects. Chlorogenic Acid (CGA, 3-CQA) is a most abundant isomer among caffeoylquinic acid isomers (3-, 4-, and 5-CQA), that currently known as 5-CQA as per guidelines of IUPAC. It is one of the most available acids among phenolic acid compounds which can be naturally found in green coffee extracts and tea. CGA is an important and biologically active dietary polyphenol, playing several important and therapeutic roles such as antioxidant activity, antibacterial, hepatoprotective, cardioprotective, anti-inflammatory, antipyretic, neuroprotective, anti-obesity, antiviral, anti-microbial, anti-hypertension, free radicals scavenger and a central nervous system (CNS) stimulator...
October 25, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29066528/acute-nutrient-treatment-causes-alterations-in-intra-follicular-antioxidation-and-akt-signaling
#16
Haitao Nie, Yixuan Guo, Xiaolei Yao, Tiewei Ma, KaiPing Deng, Zheng Wang, Guomin Zhang, Lingwei Sun, Zi Yu Wang, HengChang Wang, Feng Wang
This study aimed to determine if short-term nutrient alteration affects 1) ovary morphology, 2) plasma and ovarian antioxidant capability, and 3) cell apoptosis and Akt signaling within the ovary. After estrus synchronization, 24 Hu sheep were assigned to three groups based on the nutrient requirement recommended for maintenance (M): 1×M (Control), 1.5×M (S), and 0.5×M (R) during day 7 to 14 of their estrous cycle. The results indicated that undernourishment significantly increased the counts and volume of follicles <2...
October 24, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/29066484/aminoguanidine-ag-induces-induced-both-pro-and-antioxidant-effect-in-ar42j-cells-a-rat-pancreatic-tumor-cell-line
#17
Parimal Chowdhury
Aminoguanidine (AG), a diamine oxidase and a nitric oxide synthase inhibitor, was used in diabetes, thyroid follicular carcinoma, hepatocellular carcinoma, pancreatic cancer xenografts and in breast cancer research. The effects of AG on these pathologic conditions may be related to its regulatory effects on cell proliferation, angiogenesis, and expression of antioxidant enzymes. However, its role as pro and/or anti-oxidant affecting signaling and function in pancreatic tumor cell lines has not been studied...
September 2017: Annals of Clinical and Laboratory Science
https://www.readbyqxmd.com/read/29065949/effects-of-spermine-on-the-antioxidant-status-and-gene-expression-of-antioxidant-related-signaling-molecules-in-the-liver-and-longissimus-dorsi-of-piglets
#18
T Fang, J Zheng, W Cao, G Jia, H Zhao, X Chen, J Cai, J Wang, G Liu
Previous studies showed that spermine could protect the organism from oxidative damage in vivo. However, in vivo information on the antioxidant-related underlying molecular mechanism of spermine is limited. In this experiment, we further evaluated the effects of spermine supplementation and extended spermine administration on the antioxidant status and antioxidant-related signaling molecules gene expression in the liver and longissimus dorsi of piglets. A total of 80 piglets were randomly distributed to two groups, that is, those with adequate nutrient intake administrated with spermine (0...
October 25, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29065499/an-overview-of-dietary-interventions-and-strategies-to-optimize-the-management-of-non-alcoholic-fatty-liver-disease
#19
REVIEW
Brandon J Perumpail, Rosann Cholankeril, Eric R Yoo, Donghee Kim, Aijaz Ahmed
Aim: To investigate the efficacy of lifestyle adjustment strategies as a preventive measure and/or treatment of obesity-related non-alcoholic fatty liver disease in adults. Method: A systematic review of literature through 1 July 2017 on the PubMed Database was performed. A comprehensive search was conducted using key terms, such as non-alcoholic fatty liver disease (NAFLD), combined with lifestyle intervention, diet, and exercise. All of the articles and studies obtained from the search were reviewed. Redundant literature was excluded...
October 22, 2017: Diseases (Basel)
https://www.readbyqxmd.com/read/29062025/nutrient-loading-fosters-seagrass-productivity-under-ocean-acidification
#20
Chiara Ravaglioli, Chiara Lauritano, Maria Cristina Buia, Elena Balestri, Antonella Capocchi, Debora Fontanini, Giuseppina Pardi, Laura Tamburello, Gabriele Procaccini, Fabio Bulleri
The effects of climate change are likely to be dependent on local settings. Nonetheless, the compounded effects of global and regional stressors remain poorly understood. Here, we used CO2 vents to assess how the effects of ocean acidification on the seagrass, Posidonia oceanica, and the associated epiphytic community can be modified by enhanced nutrient loading. P. oceanica at ambient and low pH sites was exposed to three nutrient levels for 16 months. The response of P. oceanica to experimental conditions was assessed by combining analyses of gene expression, plant growth, photosynthetic pigments and epiphyte loading...
October 23, 2017: Scientific Reports
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