keyword
MENU ▼
Read by QxMD icon Read
search

Beetroot

keyword
https://www.readbyqxmd.com/read/29141968/the-nitrate-independent-blood-pressure-lowering-effect-of-beetroot-juice-a-systematic-review-and-meta-analysis
#1
REVIEW
Zahra Bahadoran, Parvin Mirmiran, Ali Kabir, Fereidoun Azizi, Asghar Ghasemi
Beetroot is considered a complementary treatment for hypertension because of its high content of inorganic NO3 This systematic review and meta-analysis aimed to clarify several aspects of beetroot juice supplementation on systolic blood pressure (SBP) and diastolic blood pressure (DBP). We searched PubMed, Scopus, and Embase databases, and the reference lists of previous reviews. Randomized clinical trials that investigated the effects of beetroot juice on resting blood pressure in humans were recruited for quality assessment, meta-analyses, subgroup analyses, and meta-regressions; of these, 22 were conducted between 2009 and 2017 and included a total of 47 intervention (n = 650) and 43 control (n = 598) groups...
November 2017: Advances in Nutrition
https://www.readbyqxmd.com/read/29129982/antioxidant-capacity-and-major-phenol-compounds-of-horticultural-plant-materials-not-usually-used
#2
Stina C M Burri, Anders Ekholm, Åsa Håkansson, Eva Tornberg, Kimmo Rumpunen
Horticultural plant materials not usually used from onion, carrot, beetroot, sea buckthorn, black and red currants as well as a wastewater powder from olive oil production were analyzed for total phenols content (FC), ferric reducing ability of plasma (FRAP), radical scavenging capacity (ABTS), and for major phenolic compounds by HPLC-MS. Antioxidant capacity and phenol content varied significantly between species and cultivars, with extracts of sea buckthorn leaves being superior. In different species, different phenolic compounds were closely associated with FRAP, ABTS and FC...
November 2017: Journal of Functional Foods
https://www.readbyqxmd.com/read/29125915/a-pilot-study-investigating-reactive-oxygen-species-production-in-capillary-blood-after-a-marathon-and-the-influence-of-an-antioxidant-rich-beetroot-juice
#3
Tom Clifford, Amy Bowman, Tess Capper, Dean M Allerton, Emma Foster, Mark Birch-Machin, Georg Lietz, Glyn Howatson, Emma J Stevenson
We report that reactive oxygen species (ROS), as measured in capillary blood taken from the finger-tip, increased after a marathon (+128% P < 0.01; ES = 1.17), indicating that this collection method might be useful for measuring ROS in field settings. However, mitochondrial DNA damage remained unchanged. Beetroot juice, taken before and after exercise, was unable to mitigate exercise induced-ROS production, questioning its use an antioxidant rich-food.
November 10, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/29108664/the-effect-of-acute-and-7-days-dietary-nitrate-on-mechanical-efficiency-exercise-performance-and-cardiac-biomarkers-in-patients-with-chronic-obstructive-pulmonary-disease
#4
Rosanne J H C G Beijers, Stephanie M D Huysmans, Coby van de Bool, Boris R M Kingma, Lex B Verdijk, Luc J C van Loon, Steven J R Meex, Harry R Gosker, Annemie M W J Schols
BACKGROUND & AIMS: Many COPD patients have a reduced exercise capacity and mechanical efficiency and are at increased cardiometabolic risk. This study aimed to assess acute and 7-days effects of dietary nitrate on mechanical efficiency, exercise performance and cardiac biomarkers in patients with COPD. METHODS: This double-blind, randomized cross-over placebo controlled trial included 20 mild-to-moderate COPD patients (66.6 ± 7.5 years) with moderate exercise impairments and decreased mechanical efficiency, normal BMI (26 ± 3 kg/m(2)) but high prevalence of abdominal obesity (83...
October 31, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/29098339/a-biomimetic-approach-to-conjugate-vitamin-b6-cofactor-with-the-lysozyme-cocooned-fluorescent-auncs-and-its-application-in-turn-on-sensing-of-zinc-ii-in-environmental-and-biological-samples
#5
Shilpa Bothra, Lavanya Thilak Babu, Priyankar Paira, S K Ashok Kumar, Rajender Kumar, Suban K Sahoo
This communication focusses on the synthesis of red fluorescent lysozyme cocooned gold nanoclusters (Lyso-AuNCs) that have been successfully applied for the selective and specific recognition of the vitamin B6 cofactor pyridoxal-5'-phosphate (PLP). The red fluorescence of Lyso-AuNCs showed remarkable color change to yellow upon conjugation with PLP due to the formation of a Schiff base between the free -NH2 present in the lysozyme and the -CHO group of PLP. The developed PLP conjugated Lyso-AuNCs (PLP_Lyso-AuNCs) was applied for the selective turn-on recognition of Zn(2+) ions in aqueous medium...
November 2, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/29091471/the-effect-of-a-dietary-nitrate-supplementation-in-the-form-of-a-single-shot-of-beetroot-juice-on-static-and-dynamic-apnoea-performance
#6
Matthew J Barlow, Antonis Elia, Oliver M Shannon, Angeliki Zacharogianni, Angelica Lodin-Sundstrom
INTRODUCTION: The purpose of the present study was to assess the effects of acute nitrate (NO3(-))-rich beetroot juice supplementation on peripheral oxygen saturation (SpO2), heart rate (HR), and pulmonary gas exchange during submaximal static and dynamic apnoea. METHODS: Nine (six male, three female) trained apneists (age: 39.6 ± 8.2 years, stature: 170.4 ± 11.5cm, body mass: 72.0 ± 11.5 kg) performed three submaximal static apnoeas at 60%, 70% and 80% of the participant's current reported personal best time, followed by three submaximal (~ 75% or personal best distance) dynamic apnoeas following the consumption of either a 140 ml concentrated NO3(-)-rich beetroot juice (BRJ; 7...
November 1, 2017: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/29082595/cutaneous-reactive-hyperaemia-is-unaltered-by-dietary-nitrate-supplementation-in-healthy-humans
#7
Brett J Wong, Jeremy T Keen, Erica L Levitt
The purpose of this study was to determine whether nitrate supplementation augments cutaneous reactive hyperaemia. Seven participants were tested pre- and postnitrate supplementation (25 ml beetroot juice); participants consumed one shot per day for 3 days. Participants were instrumented with two microdialysis fibres: control (Ringer's solution) and NO synthase inhibition (20 mM L-NAME). Skin blood flow was measured via laser-Doppler flowmetry (LDF). A blood pressure cuff was placed on the experimental arm and inflated to 250 mmHg for 5 mins to occlude arterial inflow...
October 29, 2017: Clinical Physiology and Functional Imaging
https://www.readbyqxmd.com/read/29077028/performance-and-health-benefits-of-dietary-nitrate-supplementation-in-older-adults-a-systematic-review
#8
REVIEW
Luke Stanaway, Kay Rutherfurd-Markwick, Rachel Page, Ajmol Ali
Supplementation with nitrate (NO₃(-))-rich beetroot juice has been shown to improve exercise performance and cardiovascular (CV) responses, due to an increased nitric oxide (NO) availability. However, it is unclear whether these benefits are greater in older adults who have an age-related decrease in NO and higher risk of disease. This systematic review examines 12 randomised, crossover, control trials, investigating food-based NO₃(-) supplementation in older adults and its potential benefits on physiological and cognitive performances, and CV, cerebrovascular and metabolic health...
October 27, 2017: Nutrients
https://www.readbyqxmd.com/read/29066597/muscle-oxygenation-profiles-between-active-and-inactive-muscles-with-nitrate-supplementation-under-hypoxic-exercise
#9
Masahiro Horiuchi, Junko Endo, Shohei Dobashi, Yoko Handa, Masataka Kiuchi, Katsuhiro Koyama
Whether dietary nitrate supplementation improves exercise performance or not is still controversial. While redistribution of sufficient oxygen from inactive to active muscles is essential for optimal exercise performance, no study investigated the effects of nitrate supplementation on muscle oxygenation profiles between active and inactive muscles. Nine healthy males performed 25 min of submaximal (heart rate ~140 bpm; EXsub) and incremental cycling (EXmax) until exhaustion under three conditions: (A) normoxia without drink; (B) hypoxia (FiO2 = 13...
November 2017: Physiological Reports
https://www.readbyqxmd.com/read/29042272/effects-of-dietary-nitrate-on-respiratory-physiology-at-high-altitude-results-from-the-xtreme-alps-study
#10
Andrew F Cumpstey, Philip J Hennis, Edward T Gilbert-Kawai, Bernadette O Fernandez, Matthieu Poudevigne, Alexandra Cobb, Paula Meale, Kay Mitchell, Helen Moyses, Helmut Pöhnl, Monty G Mythen, Michael P W Grocott, Martin Feelisch, Daniel S Martin
Nitric oxide (NO) production plays a central role in conferring tolerance to hypoxia. Tibetan highlanders, successful high-altitude dwellers for millennia, have higher circulating nitrate and exhaled NO (ENO) levels than native lowlanders. Since nitrate itself can reduce the oxygen cost of exercise in normoxia it may confer additional benefits at high altitude. Xtreme Alps was a double-blinded randomised placebo-controlled trial to investigate how dietary nitrate supplementation affects physiological responses to hypoxia in 28 healthy adult volunteers resident at 4559 m for 1 week; 14 receiving a beetroot-based high-nitrate supplement and 14 receiving a low-nitrate 'placebo' of matching appearance/taste...
October 16, 2017: Nitric Oxide: Biology and Chemistry
https://www.readbyqxmd.com/read/29037770/dietary-nitrate-supplementation-opposes-the-elevated-diaphragm-blood-flow-in-chronic-heart-failure-during-submaximal-exercise
#11
Joshua R Smith, Scott K Ferguson, K Sue Hageman, Craig A Harms, David C Poole, Timothy I Musch
Chronic heart failure (CHF) results in a greater cost of breathing and necessitates an elevated diaphragm blood flow (BF). Dietary nitrate (NO3‾) supplementation lowers the cost of exercise. We hypothesized that dietary NO3‾ supplementation would attenuate the CHF-induced greater cost of breathing and thus the heightened diaphragm BF during exercise. CHF rats received either 5days of NO3‾-rich beetroot (BR) juice (CHF+BR, n=10) or a placebo (CHF, n=10). Respiratory muscle BFs (radiolabeled microspheres) were measured at rest and during submaximal exercise (20m/min, 5% grade)...
October 14, 2017: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/28974486/combined-dietary-nitrate-and-exercise-intervention-in-peripheral-artery-disease-protocol-rationale-and-design
#12
Mary N Woessner, Mitch D VanBruggen, Carl F Pieper, Erin K O'Reilly, William E Kraus, Jason D Allen
BACKGROUND: Peripheral artery disease (PAD) is caused by atherosclerotic occlusions in the legs. It affects approximately 8-12 million people in the United States alone, one-third of whom suffer from intermittent claudication (IC), defined as ischemic leg pain that occurs with walking and improves with rest. Patients with IC suffer a markedly impaired quality of life and a high perception of disability. Improving pain-free walking time is a primary goal of rehabilitation in this population...
October 3, 2017: JMIR Research Protocols
https://www.readbyqxmd.com/read/28971842/inorganic-nitrate-supplementation-attenuates-peripheral-chemoreflex-sensitivity-but-does-not-improve-cardiovagal-baroreflex-sensitivity-in-older-adults
#13
Joshua M Bock, Kenichi Ueda, Aaron C Schneider, William E Hughes, Jacqueline K Limberg, Nathan S Bryan, Darren P Casey
Aging is associated with increased peripheral chemoreceptor activity, reduced nitric oxide (NO) bioavailability, as well as attenuation of cardiovagal baroreflex sensitivity (BRS), collectively increasing the risk of cardiovascular disease. Evidence suggests NO may attenuate peripheral chemoreflex sensitivity and increase BRS. Exogenous inorganic nitrate increases NO bioavailability via the nitrate-nitrite-nitric oxide pathway. Our hypothesis was that inorganic nitrate supplementation would attenuate peripheral chemoreflex sensitivity and enhance spontaneous cardiovagal BRS in older adults...
September 29, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28952199/beetroot-and-sodium-nitrate-ameliorate-cardiometabolic-changes-in-diet-induced-obese-hypertensive-rats
#14
Maharshi Bhaswant, Lindsay Brown, Andrew J McAinch, Michael L Mathai
SCOPE: Dietary intake of beetroot by humans reduces blood pressure but whether this is caused by nitrate or betanin is not well-defined; neither are effects on other signs of metabolic syndrome. METHODS AND RESULTS: Rats fed a high-carbohydrate, high-fat diet (H) for 16 weeks developed abdominal obesity, hypertension, altered cardiovascular and liver structure and function, and impaired glucose tolerance compared to rats fed a corn starch diet (C). H rats treated with ∼16 mg/kg/day of nitrate either from beetroot juice (H+B) or sodium nitrate (H+N) for the last 8 weeks reduced systolic blood pressure by ∼25 mmHg, improved cardiac structure and function, plasma lipid profile and plasma markers of liver function, reduced inflammatory cell infiltration in heart and liver and decreased left ventricular fibrosis...
September 27, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28941934/effects-of-dietary-nitrate-supplementation-on-the-response-to-extremity-cooling-and-endothelial-function-in-individuals-with-cold-sensitivity-a-double-blind-placebo-controlled-crossover-randomised-control-trial
#15
Clare M Eglin, Joseph T Costello, Stephen J Bailey, Mark Gilchrist, Heather Massey, Anthony I Shepherd
Individuals with cold sensitivity have low peripheral skin blood flow and skin temperature possibly due to reduced nitric oxide (NO•) bioavailability. Beetroot has a high concentration of inorganic nitrate and may increase NO-mediated vasodilation. Using a placebo-controlled, double blind, randomised, crossover design, this study tested the hypotheses that acute beetroot supplementation would increase the rate of cutaneous rewarming following a local cold challenge and augment endothelium-dependent vasodilation in cold sensitive individuals...
September 20, 2017: Nitric Oxide: Biology and Chemistry
https://www.readbyqxmd.com/read/28930173/polyphenols-from-root-tubercles-and-grains-cropped-in-brazil-chemical-and-nutritional-characterization-and-their-effects-on-human-health-and-diseases
#16
REVIEW
Diego Dos Santos Baião, Cyntia Silva de Freitas, Laidson Paes Gomes, Davi da Silva, Anna Carolina N T F Correa, Patricia Ribeiro Pereira, Eduardo Mere Del Aguila, Vania Margaret Flosi Paschoalin
Throughout evolution, plants have developed the ability to produce secondary phenolic metabolites, which are important for their interactions with the environment, reproductive strategies and defense mechanisms. These (poly)phenolic compounds are a heterogeneous group of natural antioxidants found in vegetables, cereals and leguminous that exert beneficial and protective actions on human health, playing roles such as enzymatic reaction inhibitors and cofactors, toxic chemicals scavengers and biochemical reaction substrates, increasing the absorption of essential nutrients and selectively inhibiting deleterious intestinal bacteria...
September 20, 2017: Nutrients
https://www.readbyqxmd.com/read/28918160/shopping-for-food-with-children-a-strategy-for-directing-their-choices-toward-novel-foods-containing-vegetables
#17
Xavier Allirot, Edurne Maiz, Elena Urdaneta
Involving children in the different steps of meal preparation has been suggested as a strategy for enhancing dietary habits in childhood. It has previously been shown that involving children in cooking can increase their willingness to taste novel foods and direct their food choices towards foods containing vegetables. The objective of the present study was to assess the effect of involving children in food purchasing on food choices, intake, liking and appetite. A between-subject experiment was conducted with 86 children (from 8 to 10 years old)...
January 1, 2018: Appetite
https://www.readbyqxmd.com/read/28916479/dietary-nitrate-increases-vo2peak-and-performance-but-does-not-alter-ventilation-or-efficiency-in-patients-with-heart-failure-with-reduced-ejection-fraction
#18
Andrew R Coggan, Seth R Broadstreet, Kiran Mahmood, Deana Mikhalkova, Michael Madigan, Indra Bole, Soo Park, Joshua L Leibowitz, Ana Kadkhodayan, Deepak P Thomas, Dakkota Thies, Linda R Peterson
BACKGROUND: Patients with heart failure with reduced ejection fraction (HFrEF) exhibit lower efficiency, dyspnea, and diminished peak oxygen uptake (VO2peak) during exercise. Dietary nitrate (NO3(-)), a source of nitric oxide (NO), has improved these measures in some studies of other populations. We determined the effects of acute NO3(-) ingestion on exercise responses in 8 patients with HFrEF using a randomized, double-blind, placebo-controlled, crossover design. METHODS AND RESULTS: Plasma NO3(-), nitrite (NO2(-)), and breath NO were measured at multiple time points and respiratory gas exchange was determined during exercise after ingestion of beetroot juice containing or devoid of 11...
September 12, 2017: Journal of Cardiac Failure
https://www.readbyqxmd.com/read/28783446/dietary-nitrate-supplementation-does-not-improve-cycling-time-trial-performance-in-the-heat
#19
Georgina L Kent, Brian Dawson, Gregory R Cox, Louise M Burke, Annette Eastwood, Kevin D Croft, Peter Peeling
This investigation examined the effect of beetroot juice (BR) supplementation, a source of dietary nitrate (NO3(-)), on cycling time-trial (TT) performance and thermoregulation in the heat. In a double-blind, repeated-measures design, 12 male cyclists (age 26.6 ± 4.4 years, VO2peak 65.8 ± 5.5 mL.kg(-1).min(-1)) completed four cycling TTs (14 kJ.kg(-1)) in hot (35°C, 48% relative humidity) and euthermic (21°C, 52%) conditions, following 3 days supplementation with BR (6.5 mmol NO3(-) for 2 days and 13 mmol NO3(-) on the final day), or NO3(-)depleted placebo (PLA)...
August 7, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28782598/physiological-and-performance-effects-of-nitrate-supplementation-during-roller-skiing-in-normoxia-and-normobaric-hypoxia
#20
Linn Nybäck, Caroline Glännerud, Gustav Larsson, Eddie Weitzberg, Oliver Michael Shannon, Kerry McGawley
The present study examined the effects of acute nitrate (NO3(-)) supplementation ingested in the form of concentrated beetroot juice on cross-country roller-ski performance in normoxia (N) and normobaric hypoxia (H). Eight competitive cross-country skiers (five males: age 22 ± 3 years, V·O2max 71.5 ± 4.7 mL kg(-1)·min(-1); three females: age 21 ± 1 years, V·O2max 58.4 ± 2.5 mL kg(-1)·min(-1)) were supplemented with a single dose of NO3(-)-rich beetroot juice (BRJ, ∼13 mmol NO3(-)) or a NO3(-)-depleted placebo (PL, ∼0 mmol NO3(-)) and performed 2 x 6-min submaximal exercise bouts and a 1000-m time-trial (TT) on a treadmill in N (20...
August 4, 2017: Nitric Oxide: Biology and Chemistry
keyword
keyword
10114
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"