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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 16 of 16 for “"Dietary Nitrate"”.
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Salivary Reduction of Dietary Nitrate
… known mostly for its vasodilatative effects. Nitrate (NO3-) acts as an important NO source through reductive physiological pathways. Basal plasma NO3- levels are a sum of the oxidation of endogenous NO and ingested dietary NO3-. Approximately 25% of dietary NO3- is recovered by the salivary …
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Studies of dietary nitrate induced nitrosative stress in the upper gastrointestinal tract
… derived from the enterosalivary recirculation of dietary nitrate and its reduction by buccal bacteria. Carcinogenic N-nitrosocompounds may be formed from the nitrite in swallowed saliva by bacterially-catalysed nitrosation in the achlorhydric stomach or acid-catalysed nitrosation in the healthy …
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Effect of acute dietary nitrate consumption on submaximal oxygen consumption and oxidative stress in hypoxia
… impairs exercise performance at altitude. Acute nitrate supplementation, at sea level may reduce oxygen cost during submaximal exercise in hypoxia. Therefore, we investigated the metabolic response during exercise at altitude following acute nitrate consumption. Ten well-trained (61.01±7.37 …
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Dietary nitrate supplementation augments nitric oxide synthase-dependent and independent reflex cutaneous vasodilation in healthy humans
… Subjects underwent heat stress pre- and post-nitrate supplementation (3 days of BRJ: 5mM, 0.45g nitrates per day). BRJ increased the plateau CVC at control (pre: 57 ± 3 vs. post: 80 ± 5 %CVCmax) and L-NAME (pre: 36 ± 3 vs. post: 52 ± 6 %CVCmax; p<0.05 for all conditions) sites. The %NO …
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THE EFFECTS OF ACUTE DIETARY NITRATE SUPPLEMENTATION ON CONSTANT WORK RATE EXERCISE IN CHRONIC OBSTRUCTIVE PULMONARY DISEASE (COPD) PATIENTS
Dietary nitrate supplementation has been shown to positively influence the physiological responses to exercise and improve exercise capacity. The purpose of this study was to investigate the effects of acute dietary nitrate ingestion on the submaximal,
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The Effects of Acute Dietary Nitrate Supplementation on Constant Work Rate Exercise in Chronic Obstructive Pulmonary Disease (COPD) Patients
… study was to investigate the effect of acute nitrate supplementation in the form of beetroot juice on exercise capacity in patients with COPD. Six mild to moderately diseased patients completed four visits and were randomized to one of two treatment groups (beetroot juice, for visit 3, placebo …
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Determination of endogenous and dietary-derived nitric oxide production in exhaled air of adult humans
… action or through exogenous factors from dietary nitrate reduction. Exhaled nitric oxide (eNO) levels were also observed to be increased in inflammatory conditions, such as asthma and rhinitis, compared to normal physiological conditions. The aim of this study was to observe the production …
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Nitrite and insulin lower the oxygen cost of ATP synthesis in skeletal muscle cells by pleiotropic stimulation of glycolysis
Dietary nitrate lowers the oxygen cost of submaximal exercise, but precise mechanistic insight into how this occurs is lacking. Research suggests that dietary nitrate may render oxidative ATP synthesis more efficient, but evidence is inconclusive at present. This thesis aimed to establish how …
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Nitrate supplementation does not alter the V̇O2p SC-muscle fatigue relationship in recreationally active men
… fatigue development relationship using dietary nitrate (NO3- ) supplementation during very heavy (VH)-intensity constant-work rate cycling exercise. Using a double- blind, block-randomised, crossover design, 8 healthy men (age, 24±2 yr [mean±SD]; V̇O2p-max, 43.8±6.0 mL/kg/min) consumed …
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EFFECTS OF BEETROOT JUICE, PROTEIN SUPPLEMENTATION, AND RESISTANCE TRAINING ON STRENGTH IN OLDER ADULTS
… occur with aging; a novel intervention of dietary nitrates, protein supplement, and resistance training was tested to improve these age-related declines. Beetroot juice is a dietary source high in nitrates. PURPOSE: The primary purpose was to examine the effects of this intervention on …
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Nitrate Consumption and Physical Function in ICU Patients
Ingested dietary nitrate which is converted to nit rite and then to nitric oxide has been shown to be ergogenic in clinical populations. The conversion of nitrate to nitrite is facilitated by bacteria in the oral cavity. PURPOSE: 1) to examine nitrite levels following nitrate ingestion in ICU …
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CARDIAC ENERGY METABOLISM IN ISCHAEMIA AND TYPE 1 DIABETES
… ischaemia/reperfusion. Supplementation with dietary nitrate ablated this cardioprotective effect, but this highlights the importance of fatty acid oxidation to recovery from ischaemia/reperfusion injury. Ketogenesis was found to occur in the ischaemic heart, and was not specifically dependent …
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Influence of dietary antioxidants on luminal nitrite chemistry under conditions simulating the gastro-oesophageal junction
… been concern about luminal nitrite, derived from dietary nitrate, as a risk factor for upper gastro-intestinal malignancies. This has arisen from evidence that the salivary nitrite is rapidly converted to nitrosating species and (in the presence of ascorbic acid) nitric oxide (NO), which are both …
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TRANSLATIONAL APPROACH TO NEUROMUSCULAR FUNCTION AND ITS RECOVERY: EFFECT OF LIMBS, AGING, AND DISEASE.
… Since, aging seems to negatively affect plasma nitrate concentration [NO3-] and the potential benefits of dietary NO3- supplementation on skeletal muscle contractile function and muscle fatigue have been recently suggested, the third study aimed to evaluate the effects of prolonged NO3- …
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Investigating the Link between the Oral Microbiome and Cardiovascular Health in Regards to Nitrate/Nitrite Metabolism.
This thesis evaluated nitrate metabolism and the link between cardiovascular health and periodontal disease. The first study compared effects of high-nitrate vegetables and pharmacological salt supplementation on the oral microbiome composition in hypertensive individuals. Seventy participants …