keyword
MENU ▼
Read by QxMD icon Read
search

Antioxidant nutrients

keyword
https://www.readbyqxmd.com/read/29335637/expression-profiling-of-host-and-virus-during-a-coccolithophore-bloom-provides-insights-into-the-role-of-viral-infection-in-promoting-carbon-export
#1
Uri Sheyn, Shilo Rosenwasser, Yoav Lehahn, Noa Barak-Gavish, Ron Rotkopf, Kay D Bidle, Ilan Koren, Daniella Schatz, Assaf Vardi
The cosmopolitan coccolithophore Emiliania huxleyi is a unicellular eukaryotic alga that forms vast blooms in the oceans impacting large biogeochemical cycles. These blooms are often terminated due to infection by the large dsDNA virus, E. huxleyi virus (EhV). It was recently established that EhV-induced modulation of E. huxleyi metabolism is a key factor for optimal viral infection cycle. Despite the huge ecological importance of this host-virus interaction, the ability to assess its spatial and temporal dynamics and its possible impact on nutrient fluxes is limited by current approaches that focus on quantification of viral abundance and biodiversity...
January 15, 2018: ISME Journal
https://www.readbyqxmd.com/read/29333051/therapeutic-significance-of-loligo-vulgaris-lamarck-1798-ink-extract-a-biomedical-approach
#2
Sri Kumaran Nadarajah, Radha Vijayaraj, Jayaprakashvel Mani
Background: The squid ink extract is well known for its biomedical properties. Objective: In this study, squid Loligo vulgaris was collected from Tuticorin costal water, Bay of Bengal, India. Materials and Methods: Proximate composition of the crude squid ink was studied and found to have protein as the major component over lipid and carbohydrates. Further, bioactive fractions of squid ink were extracted with ethanol, and therapeutic applications such as hemolytic, antioxidant, antimicrobial, and in vitro anti-inflammatory properties were analyzed using standard methods...
December 2017: Pharmacognosy Research
https://www.readbyqxmd.com/read/29333047/assessment-of-nutritional-quality-and-global-antioxidant-response-of-banana-musa-sp-cv-nanjangud-rasa-bale-pseudostem-and-flower
#3
Ramith Ramu, Prithvi S Shirahatti, K R Anilakumar, Shivasharanappa Nayakavadi, Farhan Zameer, B L Dhananjaya, M N Nagendra Prasad
Background: The assessment of the nutritional composition and phytochemical screening of banana pseudostem (PB) and flower (FB) advocate this nonconventional food source for routine consumption, considering its various health benefits. Objectives: The aim is to assess the proximate nutrient composition, fatty acids, minerals, amino acid profile, and global antioxidant response (GAR) of PB and FB. Methods: Standard analytical procedures were used to determine the nutritional quality and GAR of PB and FB...
December 2017: Pharmacognosy Research
https://www.readbyqxmd.com/read/29330582/nano-silicon-alters-antioxidant-activities-of-soybean-seedlings-under-salt-toxicity
#4
Salar Farhangi-Abriz, Shahram Torabian
Materials with a particle size less than 100 nm are classified as nano-materials. The physical and chemical properties of nano-materials can vary considerably from those of bulk materials of the same composition. Silicon (Si) still fails to get recognized as an essential nutrient for plant growth and development, however the beneficial effects in terms of growth, biotic and abiotic stress resistance have been indicated in a variety of plant species for their growth. The aim of this study was to investigate the effects of different nano-silicon rates on the growth and antioxidant activities of soybean (Glycine max L...
January 12, 2018: Protoplasma
https://www.readbyqxmd.com/read/29324740/dietary-intake-and-diabetic-retinopathy-a-systematic-review
#5
Mark Y Z Wong, Ryan E K Man, Eva K Fenwick, Preeti Gupta, Ling-Jun Li, Rob M van Dam, Mary F Chong, Ecosse L Lamoureux
INTRODUCTION: The evidence linking dietary intake with diabetic retinopathy (DR) is growing but unclear. We conducted a systematic review of the association between dietary intake and DR. METHODS: We systematically searched PubMed, Embase, Medline, and the Cochrane Central register of controlled trials, for publications between January 1967 and January 2017 using standardized criteria for diet and DR. Interventional and observational studies investigating micro- and macro-nutrient intakes; food and beverage consumptions; and dietary patterns were included...
2018: PloS One
https://www.readbyqxmd.com/read/29319513/production-characterization-and-valuable-applications-of-exopolysaccharides-from-marine-bacillus-subtilis-sh1
#6
Sahar W M Hassan, Hassan A H Ibrahim
Exopolysaccharides (EPSs) are high molecular weight polymers consisting of different sugar residues they are preferable for replacing synthetic polymers as they are degradable and nontoxic. Many microorganisms possess the ability to synthesize and excrete exopolysaccharides with novel chemical compositions, properties and structures to have potential applications in different fields. The present study attempt to optimize the production of EPS by marine Bacillus subtilis SH1 in addition to characterization and investigation of different valuable applications...
December 4, 2017: Polish Journal of Microbiology
https://www.readbyqxmd.com/read/29316985/cognitive-enhancement-in-old-dogs-from-dietary-supplementation-with-a-nutrient-blend-containing-arginine-antioxidants-b-vitamins-and-fish-oil
#7
Yuanlong Pan, Adam D Kennedy, Thomas J Jönsson, Nortan W Milgram
This study focused on the hypothesis that cognitive decline in aged dogs could be attenuated by dietary supplementation with a nutrient blend consisting of antioxidants, B vitamins, fish oil and l-arginine, referred to hereafter as the Brain Protection Blend (BPB). Baseline cognitive assessment before the start of treatment was used to establish cognitively equivalent control (10·464+2·33 kg) and treatment (12·118+3·386 kg) groups of aged dogs between 9·1 and 11·5 years of age and with body condition score of 5...
January 10, 2018: British Journal of Nutrition
https://www.readbyqxmd.com/read/29315686/effect-of-metabolic-and-antioxidant-supplementation-on-sperm-parameters-in-oligo-astheno-teratozoospermia-with-and-without-varicocele-a-double-blind-placebo-controlled-study
#8
G M Busetto, A Agarwal, A Virmani, G Antonini, G Ragonesi, F Del Giudice, S Micic, V Gentile, E De Berardinis
Since sperm require high energy levels to perform their specialised function, it is vital that essential nutrients are available for spermatozoa when they develop, capacitate and acquire motility. However, they are vulnerable to a lack of energy and excess amounts of reactive oxygen species, which can impair sperm function, lead to immotility, acrosomal reaction impairment, DNA fragmentation and cell death. This monocentric, randomised, double-blind, placebo-controlled trial investigated the effect of 6 months of supplementation with l-carnitine, acetyl-l-carnitine and other micronutrients on sperm quality in 104 subjects with oligo- and/or astheno- and/or teratozoospermia with or without varicocele...
January 7, 2018: Andrologia
https://www.readbyqxmd.com/read/29305107/five-threads-how-u-shaped-thinking-weaves-together-dogs-men-selenium-and-prostate-cancer-risk
#9
REVIEW
David J Waters, Emily C Chiang
Prostate cancer is one of the leading causes of cancer-related mortality among men living in developed countries, making the development of safe, practical approaches to prostate cancer risk reduction a high research priority. The relationship between prostate cancer risk and selenium, an essential nutrient required for a number of metabolically important enzymes including glutathione peroxidases, has been investigated, but a satisfactory integration of results has proven elusive. Dogs, like men, naturally develop prostate cancer during aging, providing an appropriate context to study the effects of selenium supplementation on the dysregulation of homeostasis that drives cancer development within the aging prostate...
January 2, 2018: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/29303987/possible-mechanisms-of-the-prevention-of-doxorubicin-toxicity-by-cichoric-acid-antioxidant-nutrient
#10
Agata Jabłońska-Trypuć, Rafał Krętowski, Monika Kalinowska, Grzegorz Świderski, Marzanna Cechowska-Pasko, Włodzimierz Lewandowski
Skin is the largest organ in the human body, and which protects organism against unfavorable external factors e.g., chemicals, environment pollutants, allergens, microorganisms, and it plays a crucial role in maintaining general homeostasis. It is also an important target of oxidative stress due to the activity of oxygen reactive species (ROS), which are constantly generated in the fibroblasts in response to exogenous or endogenous prooxidant agents. An example of such compound with proved prooxidant activity is Doxorubicin (DOX), which is an effective anticancer agent belongs in anthracycline antibiotic group...
January 5, 2018: Nutrients
https://www.readbyqxmd.com/read/29298528/s-nitrosoglutathione-formation-at-gastric-ph-is-augmented-by-ascorbic-acid-and-by-the-antioxidant-vitamin-complex-resiston
#11
Vitali I Stsiapura, Ilya Bederman, Ivan I Stepuro, Tatiana S Morozkina, Stephen J Lewis, Laura Smith, Benjamin Gaston, Nadzeya Marozkina
CONTEXT: Exogenous nitrogen oxides must be made bioavailable to sustain normal physiology because nitric oxide synthase (NOS) deficient mice are viable. In the stomach, S-nitrosoglutathione (GSNO) is formed from ingested nitrite and high levels of airway glutathione (GSH) that are cleared and swallowed. However, gastric GSNO may be broken down by nutrients like ascorbic acid (AA) before it is absorbed. OBJECTIVE: To study the effect of AA on GSNO formation and stability...
December 2018: Pharmaceutical Biology
https://www.readbyqxmd.com/read/29284039/from-in-vivo-to-in-vitro-major-metabolic-alterations-take-place-in-hepatocytes-during-and-following-isolation
#12
Shamir Cassim, Valérie-Ann Raymond, Pascal Lapierre, Marc Bilodeau
The liver plays a key role in maintaining physiological homeostasis and hepatocytes are largely responsible for this. The use of isolated primary hepatocytes has become an essential tool for the study of nutrient physiology, xenobiotic metabolism and several liver pathologies. Since hepatocytes are removed from their normal environment, the isolation procedure and in vitro culture of primary hepatocytes is partially known to induce undesired metabolic changes. We aimed to perform a thorough metabolic profiling of primary cells before, during and after isolation using state-of-the-art techniques...
2017: PloS One
https://www.readbyqxmd.com/read/29282667/changes-in-primary-and-secondary-metabolites-of-mentha-aquatica-l-exposed-to-different-concentrations-of-manganese
#13
Mehrdad Nazari, Fatemeh Zarinkamar, Vahid Niknam
This experiment was conducted in order to determine the effects of different concentrations of manganese (Mn) on the levels and correlations of multiple primary and secondary metabolites in Mentha aquatica. With this aim, four levels of Mn concentrations were used as follows: basic Hoagland's solution (control), 40, 80, and 160 μM of Mn supplied as MnSO4.H2O. The results indicated that the biomass and the contents of photosynthetic pigments and soluble carbohydrates were higher in the plants that were treated with the moderate concentrations of Mn (40 and 80 μM) than the control and 160 μM-treated plants...
December 27, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29278646/impact-of-dietary-nutrient-intake-and-physical-activity-on-body-composition-and-growth-in-indian-children
#14
Anuradha V Khadilkar, Shashi A Chiplonkar, Neha A Kajale, Veena H Ekbote, Lavanya Parathasarathi, Raja Padidela, Vaman V Khadilkar
OBJECTIVE: To investigate inter-relationships of dietary-composition and physical activity (PA) with growth and BC in urban Indian school-children. METHODS: A cross-sectional study was performed in 4747-Indian school children (2623- Boys) aged 3-18 year. Weight, height, BC by body impedance analyser, PA and dietary food intakes by questionnaire method were recorded. RESULTS: Mean daily energy and protein intakes as Recommended Dietary Allowance (RDA) were significantly lower in both boys and girls (P<0...
December 20, 2017: Pediatric Research
https://www.readbyqxmd.com/read/29274976/replacing-ground-corn-with-incremental-amounts-of-liquid-molasses-does-not-change-milk-enterolactone-but-decreases-production-in-dairy-cows-fed-flaxseed-meal
#15
C P Ghedini, D C Moura, R A V Santana, A S Oliveira, A F Brito
We investigated the effects of replacing ground corn (GRC) with incremental amounts of liquid molasses (LM) on milk enterolactone concentration, antioxidant enzymes activity in plasma, production, milk fatty acid (FA) profile, and nutrient utilization in Jersey cows fed flaxseed meal and low-starch diets. Sixteen multiparous organically certified Jersey cows averaging (mean ± standard deviation) 101 ± 45 d in milk, 462 ± 38 kg of body weight, and 19.8 ± 3.90 kg/d of milk in the beginning of the study were randomly assigned to treatment sequences in a replicated 4 × 4 Latin square design, with 14 d for diet adaptation and 7 d for data and sample collection...
December 20, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/29274776/nrf2-p62-autophagy-pathway-and-its-response-to-oxidative-stress-in-hepatocellular-carcinoma
#16
REVIEW
Bartolini Desirée, Dallaglio Katiuscia, Torquato Pierangelo, Piroddi Marta, Francesco Galli
Deregulation of autophagy is proposed to play a key pathogenic role in hepatocellular carcinoma (HCC), the most common primary malignancy of the liver and the third leading cause of cancer death. Autophagy is an evolutionarily conserved catabolic process activated to degrade and recycle cell's components. Under stress conditions, such as oxidative stress and nutrient deprivation, autophagy is an essential survival pathway that operates in harmony with other stress response pathways. These include the redox-sensitive transcription complex Nrf2-Keap1 that controls groups of genes with roles in detoxification and antioxidant processes, intermediary metabolism, and cell cycle regulation...
November 29, 2017: Translational Research: the Journal of Laboratory and Clinical Medicine
https://www.readbyqxmd.com/read/29248677/influence-of-natural-and-synthetic-vitamin-c-ascorbic-acid-on-primary-and-secondary-metabolites-and-associated-metabolism-in-quinoa-chenopodium-quinoa-willd-plants-under-water-deficit-regimes
#17
Aniqa Aziz, Nudrat Aisha Akram, Muhammad Ashraf
Phytoextracts are being widely used these days as a source of bioactive compounds for mitigating the harmful effects of abiotic stresses including drought stress. In this study, it was assessed how far foliar applied pure synthetic ascorbic acid (AsA) or natural sweet orange juice (OJ) enriched with AsA could mitigate the drought stress induced adverse effects on growth and some key metabolic processes in quinoa (Chenopodium quinoa Willd.; cultivar V9) plants. Two weeks old quinoa seedlings were subjected to varying irrigation regimes as control [100% field capacity (FC)] and drought stress (60% FC, 40% FC and 20% FC)...
December 5, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/29247938/physiological-and-antioxidant-responses-of-the-sabkha-biotope-halophyte-limonium-delicatulum-to-seasonal-changes-in-environmental-conditions
#18
Aymen Souid, Lorenza Bellani, Christian Magné, Walid Zorrig, Abderrazak Smaoui, Chedly Abdelly, Vincenzo Longo, Karim Ben Hamed
In saline biotopes, different mechanisms may contribute to the tolerance of halophytes to high soil salinity and temperature, drought and other abiotic stresses, but their relative responses and their ecological plasticity for a given species remain unknown. In this study, we examined the responses of the salt marsh halophyte Limonium delicatulum to changing environmental conditions of its natural habitats (Sabkha "El Kalbia", Tunisia). The specific aim of the work was to check whether statistically significant correlations could be established between particular stress response mechanisms (ion uptake, activation of antioxidant systems) and soil parameters and climatic data associated with environmental stress...
December 6, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/29244975/review-of-the-molecular-mechanisms-in-wound-healing-new-therapeutic-targets
#19
B Palmieri, M Vadalà, C Laurino
The restoration of the skin barrier in acute and chronic wounds is controlled by several molecular mechanisms that synergistically regulate cell kinetics, enzymatic functions, and neurovascular activation. These pathways include genetic and epigenetic activation, which modulate physiological wound healing. Our review describes the genetic background of skin repair, namely transcription-independent diffusible damage signals, individual variability, epigenetic mechanism, controlled qualitative traits, post-translational mechanisms, antioxidants, nutrients, DNA modifications, bacteria activation, mitochondrial activity, and oxidative stress...
December 2, 2017: Journal of Wound Care
https://www.readbyqxmd.com/read/29243815/effect-of-grinding-at-modified-atmosphere-or-vacuum-on-browning-antioxidant-capacities-and-oxidative-enzyme-activities-of-apple
#20
Ah-Na Kim, Kyo-Yeon Lee, Hyun-Jin Kim, Jiyeon Chun, William L Kerr, Sung-Gil Choi
This study evaluated the effects of grinding at atmospheric pressure (control), under vacuum (∼2.67 kPa), or with modified atmosphere (N2 and CO2 ) on the browning, antioxidant activity, phenolics, and oxidative enzyme activity of apples as a function of time. The control group was affected most, showing distinct browning and losing most of the antioxidant activity and concentrations of the main phenolic compounds. The modified atmosphere groups retained color, antioxidant activity, and phenolic compounds better than the control group...
December 15, 2017: Journal of Food Science
keyword
keyword
9165
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"