2010
DOI: 10.1017/s0007114510003570
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Oral bioavailability of ATP after prolonged administration

Abstract: Purinergic receptors are important for the regulation of inflammation, muscle contraction, neurotransmission and nociception. Extracellular ATP and its metabolites are the main ligands for these receptors. Occasional reports on beneficial results of ATP administration in human and animal studies have suggested the bioavailability of oral ATP supplements. We investigated whether prolonged daily intake of oral ATP is indeed bioavailable. Thirty-two healthy subjects were randomised to receive 0, 250, 1250 or 5000… Show more

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Cited by 25 publications
(20 citation statements)
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References 39 publications
(34 reference statements)
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“…Wherein, muscle mass increased without changes in fat mass (Wilson et al 2013). Although it has also been reported that 12 weeks of direct ATP supplementation is safe (Wilson et al 2013), andCoolen et al (2011) observed no changes in blood markers following 4 weeks direct supplementation with 5 g/day of ATP, it may not be appropriate to compare direct and indirect ATP enhancement because of their dissimilar compositions and dosage levels and because their respective mechanisms of action are likely different.…”
Section: Discussionmentioning
confidence: 99%
“…Wherein, muscle mass increased without changes in fat mass (Wilson et al 2013). Although it has also been reported that 12 weeks of direct ATP supplementation is safe (Wilson et al 2013), andCoolen et al (2011) observed no changes in blood markers following 4 weeks direct supplementation with 5 g/day of ATP, it may not be appropriate to compare direct and indirect ATP enhancement because of their dissimilar compositions and dosage levels and because their respective mechanisms of action are likely different.…”
Section: Discussionmentioning
confidence: 99%
“…However, ATP molecules are highly unstable and the ingestion of exogenous ATP may not deliver expected beneficial health effects [5]. Recent studies based on the bioavailability of exogenous ATP did not validate such an approach [41]. Since clinical standards for a nutraceutical ATP product have not been met to date, nutritional agents that can maintain and increase production of endogenous ATP instead of supplying exogenous ATP may constitute a more practical approach.…”
Section: Discussionmentioning
confidence: 99%
“…Following the digestive process, ATP degrades rapidly into adenosine and inorganic phosphate, which then are absorbed in the small intestine, entering the portal circulation where they are incorporated into liver ATP pools [24]. Previous studies showed a lack of intact bioavailability for orally administrated ATP at rest [16,17]. However, we posit that ATP supplementation and its resultant metabolites work indirectly to increase the synthesis of ATP during highintensity exercise.…”
Section: Effects Of Oral Atp On Metabolite Concentration Levelsmentioning
confidence: 92%
“…Though intravenous administration of ATP is bioavailable [15], several studies have shown that oral ATP in the form of enteric-coated pellets is not systemically bioavailable under resting conditions [16,17]. Oral ATP administration in the form of enteric-coated pellets for 28 days in healthy subjects did not increase plasma ATP concentrations.…”
Section: Introductionmentioning
confidence: 99%