keyword
MENU ▼
Read by QxMD icon Read
search

Nitrate supplementation

keyword
https://www.readbyqxmd.com/read/28332111/practical-issues-in-evidence-based-use-of-performance-supplements-supplement-interactions-repeated-use-and-individual-responses
#1
REVIEW
Louise M Burke
Current sports nutrition guidelines recommend that athletes only take supplements following an evidence-based analysis of their value in supporting training outcomes or competition performance in their specific event. While there is sound evidence to support the use of a few performance supplements under specific scenarios (creatine, beta-alanine, bicarbonate, caffeine, nitrate/beetroot juice and, perhaps, phosphate), there is a lack of information around several issues needed to guide the practical use of these products in competitive sport...
March 22, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28330300/carbon-quantum-dots-shuttle-electrons-to-the-anode-of-a-microbial-fuel-cell
#2
A S Vishwanathan, Kartik S Aiyer, L A A Chunduri, K Venkataramaniah, S Siva Sankara Sai, Govind Rao
Electrodes based on graphite, graphene, and carbon nanomaterials have been used in the anode chamber of microbial fuel cells (MFCs). Carbon quantum dots (C-dots) are a class of versatile nanomaterials hitherto not reported in MFCs. C-dots previously synthesized from coconut husk were reported to possess hydroxyl and carboxyl functional groups on their surface. The presence of these functional groups on a carbon matrix conferred on the C-dots the ability to conduct and transfer electrons. Formation of silver nanoparticles from silver nitrate upon addition of C-dots confirmed their reducing ability...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28327503/beetroot-juice-supplementation-improves-high-intensity-intermittent-type-exercise-performance-in-trained-soccer-players
#3
Jean Nyakayiru, Kristin L Jonvik, Jorn Trommelen, Philippe J M Pinckaers, Joan M Senden, Luc J C van Loon, Lex B Verdijk
It has been shown that nitrate supplementation can enhance endurance exercise performance. Recent work suggests that nitrate ingestion can also increase intermittent type exercise performance in recreational athletes. We hypothesized that six days of nitrate supplementation can improve high-intensity intermittent type exercise performance in trained soccer players. Thirty-two male soccer players (age: 23 ± 1 years, height: 181 ± 1 m, weight: 77 ± 1 kg, playing experience: 15.2 ± 0.5 years, playing in the first team of a 2nd or 3rd Dutch amateur league club) participated in this randomized, double-blind cross-over study...
March 22, 2017: Nutrients
https://www.readbyqxmd.com/read/28319596/medium-term-effects-of-dietary-nitrate-supplementation-on-systolic-and-diastolic-blood-pressure-in-adults-a-systematic-review-and-meta-analysis
#4
Ammar W Ashor, Jose Lara, Mario Siervo
OBJECTIVES: Dietary nitrate supplementation has been shown to lower blood pressure (BP) particularly in short-term clinical trials. Whether these effects are sustained in the long-term remains to be established. The objective was to conduct a meta-analysis of randomized controlled trials that examined whether dietary nitrate supplementation for more than 1 week has beneficial effects on SBP and DBP. METHODS: Electronic databases were searched from inception until May 2016...
March 17, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28259061/isolation-and-identification-of-indigenous-prokaryotic-bacteria-from-arsenic-contaminated-water-resources-and-their-impact-on-arsenic-transformation
#5
Mohammad Ahmadi Jebelli, Afshin Maleki, Mohammad Ali Amoozegar, Enayatollah Kalantar, Behzad Shahmoradi, Fardin Gharibi
Arsenic is a known human carcinogen. Arsenite [As(III), H3AsO3] and arsenate [As(V), H2AsO4(-) and HAsO4(2-)] are the two predominant compounds of As found in surface water and groundwater. The aim of this study was to explore a bioremediation strategy for biotransformation of arsenite to arsenate by microorganisms. In this study, Babagorgor Spring, located west of Iran, was selected as the arsenic-contaminated source and its physicochemical characteristics and in situ microbiological composition were analyzed...
March 1, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28258141/aggregate-formation-of-pseudomonas-aeruginosa-in-an-alginate-bead-model-system-exhibits-in-vivo-like-characteristics
#6
Majken Sønderholm, Kasper Nørskov Kragh, Klaus Koren, Tim Holm Jakobsen, Sophie Darch, Maria Alhede, Peter Østrup Jensen, Marvin Whiteley, Michael Kühl, Thomas Bjarnsholt
Alginate beads represent a simple and highly reproducible in vitro model system for diffusion limited bacterial growth. In this study, alginate beads were inoculated with Pseudomonas aeruginosa and followed for up to 72 hours. Confocal microscopy revealed that P. aeruginosa formed dense clusters similar in size to in vivo aggregates observed ex vivo in cystic fibrosis lungs and chronic wounds. Bacterial aggregates were primarily growing in the bead periphery and decreased in size and abundance towards the centre of the bead...
March 3, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28257813/reverse-osmosis-and-ultrafiltration-for-recovery-and-reuse-of-larval-rearing-water-in-anopheles-arabiensis-mass-production-effect-of-water-quality-on-larval-development-and-fitness-of-emerging-adults
#7
Wadaka Mamai, Rebecca Hood-Nowotny, Hamidou Maiga, Adel Barakat Ali, Nanwintoun S Bimbile-Somda, Diloma Dieudonné Soma, Hanano Yamada, Rosemary Susan Lees, Jeremie R L Gilles
BACKGROUND: Countries around the world are showing increased interest in applying the sterile insect technique against mosquito disease vectors. Many countries in which mosquitoes are endemic, and so where vector control using the sterile insect technique may be considered, are located in arid zones where water provision can be costly or unreliable. Water reuse provides an alternate form of water supply. In order to reduce the cost of mass rearing of Anopheles arabiensis mosquitoes, the possibility of recycling and reusing larval rearing water was explored...
March 1, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28251402/dietary-nitrate-supplementation-enhances-short-but-not-longer-duration-running-time-trial-performance
#8
Oliver Michael Shannon, Matthew John Barlow, Lauren Duckworth, Emily Williams, Georgina Wort, David Woods, Mario Siervo, John Paul O'Hara
PURPOSE: This study evaluated the effects of dietary nitrate (NO3(-)) supplementation on physiological functioning and exercise performance in trained runners/triathletes conducting short and longer-distance treadmill running time-trials (TT). METHOD: Eight trained male runners or triathletes completed four exercise performance tests comprising a 10 min warm up followed by either a 1500 or 10,000 m treadmill TT. Exercise performance tests were preceded 3 h before the exercise by supplementation with either 140 ml concentrated nitrate-rich (~12...
March 1, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28220590/biosynthesis-and-mass-spectral-fragmentation-pathways-of-13-c-and-15-n-labeled-cytochalasin-d-produced-by-xylaria-arbuscula
#9
Luciana da Silva Amaral, Taicia Pacheco Fill, Luiz Fernando Arruda Santos, Edson Rodrigues-Filho
The fungus Xylaria arbuscula was isolated as an endophyte from Cupressus lusitanica and has shown to be a prominent producer of cytochalasans, mainly cytochalasin C, D and Q. Cytochalasans comprise an important class of fungal secondary metabolites that have aroused attention due to their uncommon molecular structures and pronounced biological activities. Due to the few published studies on the ESI-MS/MS fragmentation of this important class of secondary metabolites, in the first part of our work we studied the cytochalasin D fragmentation pathways using an ESI-Q-ToF mass spectrometer coupled with liquid chromatography...
February 21, 2017: Journal of Mass Spectrometry: JMS
https://www.readbyqxmd.com/read/28220388/real-world-evidence-for-the-antianginal-efficacy-of-trimetazidine-from%C3%A2-the%C3%A2-russian-observational-choice-2-study
#10
Maria Glezer
INTRODUCTION: The guidelines recommend a beta-blocker or calcium channel blocker as the first-line medication for angina, supplemented by other agents for additional symptoms. One such agent is trimetazidine (TMZ), which has been shown to reduce the frequency of anginal episodes and improve exercise performance without affecting haemodynamic parameters. However, extensive real-world evidence for its efficacy in combination with first-line therapies has been lacking. METHODS: The aim of this large-scale, Russian, multicentre, 6-month, open-label, prospective observational study was to assess the effect of adding TMZ modified release 35 mg bid to background antianginal therapy in the real-world clinical setting...
February 20, 2017: Advances in Therapy
https://www.readbyqxmd.com/read/28213650/alleviation-of-water-and-osmotic-stress-induced-changes-in-nitrogen-metabolizing-enzymes-in-triticum-aestivum-l-cultivars-by-potassium
#11
Mohammad Abass Ahanger, Megha Tittal, Rayees Ahmad Mir, R M Agarwal
Present communication reports laboratory and pot experiments conducted to study the influence of water and osmotic stress on nitrogen uptake and metabolism in two wheat (Triticum aestivum L) cultivars with and without potassium supplementation. Polyethylene glycol 6000-induced osmotic stress/restricted irrigation caused a considerable decline in the activity of nitrate reductase, glutamate synthase, alanine and aspartate aminotransferases, and glutamate dehydrogenase. Potassium considerably improved nitrogen metabolism under normal water supply conditions and also resulted in amelioration of the negative impact of water and osmotic stresses indicating that potassium supplementation can be used as a potential tool for enhancing the nitrogen use efficiency in wheat for exploiting its genetic potential...
February 17, 2017: Protoplasma
https://www.readbyqxmd.com/read/28203456/concurrent-beet-juice-and-carbohydrate-ingestion-influence-on-glucose-tolerance-in-obese-and-nonobese-adults
#12
Joseph W Beals, Scott E Binns, Janelle L Davis, Gregory R Giordano, Anna L Klochak, Hunter L Paris, Melani M Schweder, Garrett L Peltonen, Rebecca L Scalzo, Christopher Bell
Insulin resistance and obesity are characterized by low nitric oxide (NO) bioavailability. Insulin sensitivity is improved with stimulation of NO generating pathways. Consumption of dietary nitrate (NO3(-)) increases NO formation, via NO3(-) reduction to nitrite (NO2(-)) by oral bacteria. We hypothesized that acute dietary nitrate (beet juice) ingestion improves insulin sensitivity in obese but not in nonobese adults. 12 nonobese (body mass index: 26.3 ± 0.8 kg/m(2) (mean ± SE)) and 10 obese adults (34...
2017: Journal of Nutrition and Metabolism
https://www.readbyqxmd.com/read/28196859/dietary-nitrite-reverses-features-of-postmenopausal-metabolic-syndrome-induced-by-high-fat-diet-and-ovariectomy-in-mice
#13
Kazuo Ohtake, Nobuyuki Ehara, Hiroshige Chiba, Genya Nakano, Kunihiro Sonoda, Junta Ito, Hiroyuki Uchida, Jun Kobayashi
Menopausal women are at greater risk of developing metabolic syndrome with reduced endothelial nitric oxide synthase (eNOS) activity. Hormone replacement therapy increases eNOS activity and normalizes some characteristics of metabolic syndrome. We hypothesized that nitric oxide (NO) supplementation should have a therapeutic effect in this syndrome. We examined the effect of dietary nitrite on mice model with postmenopausal metabolic syndrome induced by ovariectomy (OVX) with high fat diet (HF). C57BL/6 female mice were divided into five groups, sham+normal fat diet (NF), sham+ HF, OVX+HF without or with sodium nitrite (50mg and 150mg/L) in drinking water...
February 14, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28192673/the-benefit-of-a-supplement-with-the-antioxidant-melatonin-on-redox-status-and-muscle-damage-in-resistance-trained-athletes
#14
Roberto C Leonardo-Mendonça, Javier Ocaña-Wilhelmi, Tomás de Haro, Carlos de Teresa-Galván, Eduardo Guerra-Hernández, Iryna Rusanova, Marisol Fernández-Ortiz, Ramy Ka Sayed, Germaine Escames, Darío Acuña-Castroviejo
Previous data showed that the administration of high doses of melatonin improved the circadian system in athletes. Here, we investigated in the same experimental paradigm whether the antioxidant properties of melatonin has also beneficial effects against exercise-induced oxidative stress and muscle damage in athletes. Twenty-four athletes were treated with 100 mg.day-1 of melatonin or placebo 30 min before bedtime during four weeks in a randomized double-blind scheme. Exercise intensity was higher during the study that before starting it...
February 13, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28182502/effect-of-dietary-nitrate-supplementation-on-swimming-performance-in-trained-swimmers
#15
Sam Lowings, Oliver Michael Shannon, Kevin Deighton, Jamie Matu, Matthew John Barlow
Nitrate supplementation appears to be most ergogenic when oxygen availability is restricted and subsequently may be particularly beneficial for swimming performance due to the breath-hold element of this sport. This represents the first investigation of nitrate supplementation and swimming time-trial (TT) performance. In a randomised double-blind repeated-measures crossover study, ten (5male, 5female) trained swimmers ingested 140ml nitrate-rich (~12.5mmol nitrate) or nitrate-depleted (~0.01mmol nitrate) beetroot juice...
February 9, 2017: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/28179228/dietary-nitrate-does-not-reduce-oxygen-cost-of-exercise-or-improve-muscle-mitochondrial-function-in-mitochondrial-myopathy-patients
#16
Miranda Nabben, Joep P J Schmitz, Jolita Ciapaite, Carlijn M P Le Clercq, Natal A van Riel, Harm R Haak, Klaas Nicolay, Irenaeus F de Coo, Hubert J M Smeets, Stephan F Praet, Luc J C van Loon, Jeanine J Prompers
Muscle weakness and exercise intolerance negatively affect the quality of life of mitochondrial myopathy patients. Short-term dietary nitrate supplementation has been shown to improve exercise performance and reduce oxygen cost of exercise in healthy humans and trained athletes. We investigated if 1 week of dietary inorganic nitrate supplementation decreases the oxygen cost of exercise and improves mitochondrial function in mitochondrial myopathy patients. Ten mitochondrial myopathy patients (40 ± 5 years, maximal whole-body oxygen uptake = 21...
February 8, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28165641/effects-of-nitrate-supplementation-in-trained-and-untrained-muscle-is-modest-with-initial-high-plasma-nitrite-levels
#17
Peter M Christensen, Nanna K Petersen, Signe N Friis, Eddie Weitzberg, Lars Nybo
Nitrate (NO3(-) ) supplementation resulting in higher plasma nitrite (NO2(-) ) is reported to lower resting mean arterial blood pressure (MAP) and oxygen uptake (VO2 ) during submaximal exercise in non-athletic populations, whereas effects in general are absent in endurance trained individuals. To test whether physiological effects of NO3(-) supplementation depend on local muscular training status or cardiovascular fitness, male endurance-trained cyclists (CYC, n=9, VO2 -max: 64±3 ml/min/kg; mean±SD) and recreational active subjects serving as a control group (CON, n=8, 46±3 ml/min/kg), acutely consumed nitrate-rich beetroot-juice ([NO3(-) ] ~9 mmol) (NIT) or placebo (PLA) with assessment of resting MAP and energy expenditure during moderate intensity (~50% VO2 -max) and incremental leg cycling (LEG-ex) and arm cranking exercise (ARM-ex)...
February 6, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28160697/sources-and-mechanisms-of-nitrate-and-orthophosphate-transport-in-urban-stormwater-runoff-from-residential-catchments
#18
Yun-Ya Yang, Gurpal S Toor
Nutrients export from residential catchments contributes to water quality impairment in urban water bodies. We investigated the concentrations, transport mechanisms, and sources of nitrate-nitrogen (NO3-N) and orthophosphate-phosphorus (PO4-P) in urban stormwater runoff generated in residential catchments in Tampa Bay, Florida, United States. Street runoff samples, collected over 21 storm events, were supplemented with rainfall and roof runoff samples from six representative residential catchments. Samples were analyzed for N and P forms, N and oxygen (O) isotopes of nitrate (δ(18)O-NO3(-) and δ(15)N-NO3(-)), and δ(18)O and hydrogen (δD) isotopes of water (H2O)...
January 25, 2017: Water Research
https://www.readbyqxmd.com/read/28150478/effects-of-silk-peptides-administration-on-fat-utilization-over-a-whole-day-in-mice
#19
Jisu Kim, Jonghoon Park, Bokyung Kim, Chi-Ho Lee, Kiwon Lim
Purpose: The aim of the present narrative review was to consider the evidence on the timing, optimal dose and intake duration of the main dietary supplements β-alanine, nitrate, caffeine, creatine, sodium bicarbonate, carbohydrate and protein. Methods: This review article will focuses on timing, optimal dose and intake duration of main dietary supplements for consuming. Results: This paper reviewed the evidence to determine the optimal time, efficacy doses and intake duration for sports supplements verified by scientific evidence that report a performance enhancing effect in both situation of laboratory and training settings...
December 31, 2016: Journal of Exercise Nutrition & Biochemistry
https://www.readbyqxmd.com/read/28150476/nitrate-containing-beetroot-juice-reduces-oxygen-consumption-during-submaximal-exercise-in-low-but-not-high-aerobically-fit-male-runners
#20
Colin R Carriker, Roger A Vaughan, VanDusseldorp Trisha A, Johnson Kelly E, James J McCormick, Nathan H Cole, Ann L Gibson
Purpose: to examine the effect of a 4-day NO3- loading protocol on the submaximal oxygen cost of both low fit and high fit participants at five different exercise intensities. Methods: participants were initially assigned to a placebo (PL; negligible NO3-) or inorganic nitrate-rich (NR; 6.2 mmol nitrate/day) group; double-blind, placebo-controlled, crossover. Participants completed three trials (T1, T2 and T3). T1 included a maximal aerobic capacity (VO2max) treadmill test...
December 31, 2016: Journal of Exercise Nutrition & Biochemistry
keyword
keyword
96204
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"