- ICH GCP
- US-Register für klinische Studien
- Klinische Studie NCT04867655
Acute Effect of Orange Juice Mixed With Oat β-Glucan on Bioavailability of Polyphenols in Healthy Individuals
Studienübersicht
Status
Bedingungen
Intervention / Behandlung
Detaillierte Beschreibung
Brief summary Orange juice is the most widely consumed fruit juice, accounting for around a third of the total fruit juice market and is a rich source of vitamin C and bioactive compounds, predominantly flavonoids. Current research into the health effects of fruit juice consumption has presented some conflicting conclusions. Although potential health benefits have been attributed to the anti-inflammatory and anti-oxidant properties of the bioactive components in juice, other studies have suggested that the benefits of consuming orange are outweighed by the negative implications of the high sugar content leading to increases in blood glucose and insulin. At the same time it is well established that supplementation with a mean dose of 5g of β-Glucan, a soluble fibre derived from cereals such as oats or barley, significantly reduces insulin and glucose in healthy subjects and metabolic compromised individuals. Thus, the formulation of an OJ beverage with an added β-Glucan supplement may be a useful strategy to attenuate the detrimental impact of high sugar content. However, while delaying the absorption of glucose brings about favourable effects on post-prandial glycemia, dietary fibre may also reduce the bioavailability of some beneficial compounds, including polyphenols. So far, it remains unclear how addition of β-Glucan impacts bioavailability of orange juice flavanones. Thus, this study aims to determine how the bioavailability of orange juice polyphenols of healthy adults is affected mixing orange juice with 3 g and 6 g of oat β-Glucan.
Eligible participants for this study will be healthy adults aged 18 - 50 years and with a BMI in the normal or overweight to obese range (≥20 kg/m2). Participants will be required to be non-smokers, with a stable weight for the previous 3 months, and not engage in regular strenuous physical activity. Other exclusion criteria will include suffering from any chronic disease, taking any medication, or following a special diet, including being vegetarian and vegan. Before being enrolled in the study, potential participants will attend a health screening session, in which they will complete a health screening and physical activity questionnaire
This study will be a randomised controlled cross-over trial in which each participant will complete two 24-h feeding trials. The experimental trials will be separated by a wash out period of at least 7 days. The order of trials will be randomised for each participant, using a random sequence generator. In the morning of the experimental trial participants will consumed approximately 500ml of OJ (Tropicana 'with bits') without or with Oatwell fibre supplement, providing either 6g or 3 g of β-Glucan. Blood samples and urinary fractions will be collected prior to (baseline) and for 24 hours after consumption of corresponding beverage. Participants will be asked to follow a special polyphenol-free diet and record weighted dietary intake for 2 days preceding each trial and during the day of the experimental trial.
Studientyp
Einschreibung (Voraussichtlich)
Phase
- Unzutreffend
Kontakte und Standorte
Studienorte
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Glasgow, Vereinigtes Königreich, G31 2ER
- Human Nutrition, College of Medicine, Veterinary and Life Science
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Teilnahmekriterien
Zulassungskriterien
Studienberechtigtes Alter
Akzeptiert gesunde Freiwillige
Studienberechtigte Geschlechter
Beschreibung
Inclusion Criteria:
- healthy
- BMI (20 kg/m2-35 kg/m2)
- non-smoker
- not taking any drug therapies
- normal dietary habits
Exclusion Criteria:
- history of gastrointestinal diseases
- following a special diet
- take vitamin supplements, prebiotics, probiotics
- vegetarian
- engaged in strenuous exercise training
- heavy alcohol consumer
- pregnant or breastfeeding (females)
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
- Hauptzweck: Sonstiges
- Zuteilung: Zufällig
- Interventionsmodell: Crossover-Aufgabe
- Maskierung: Keine (Offenes Etikett)
Waffen und Interventionen
Teilnehmergruppe / Arm |
Intervention / Behandlung |
---|---|
Experimental: Orange juice only
Experimental test for 24 hours after consumption of orange juice only (Tropicana 'with bits').
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Approximately 500 ml of orange juice will be consumed and then blood and urine samples will be collected for 24 hours
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Experimental: Orange Juice mixed with either 6g or 3 g of β-Glucan
Experimental test for 24 hours after consumption of orange juice (Tropicana 'with bits') with either 6g or 3 g of β-Glucan.
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Approximately 500 ml of orange juice mixed with either 6g or 3 g of β-Glucan will be consumed and then blood and urine samples will be collected for 24 hours
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Was misst die Studie?
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
---|---|---|
Plasma pharmacokinetics of naringenin, hesperetin, eriodictyol, isorhamnetin and phenolic acid metabolites including phenylpropionic acids, phenylacetic acid and benzoic acid derivatives
Zeitfenster: 24 hours
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Change in plasma concentrations collected at base line (0 hours) and 0.5,1, 2, 3,4,5,6,7,8, and 24 hours after ingestion of orange juice
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24 hours
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Urinary excretion of naringenin, hesperetin, eriodictyol, isorhamnetin and phenolic acid metabolites including phenylpropionic acids, phenylacetic acid and benzoic acid derivatives
Zeitfenster: 24 hours
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Change in concentrations in urinary fraction collected at base line (0 hours) and after ingestion of orange juice (0-5, 5-8, 8-10, 10-24 hours)
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24 hours
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Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
---|---|---|
Body weight
Zeitfenster: 7 days
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Difference in body weight in kilograms between two experimental trials measured by TANITA scales (TBF-300, Cranela, UK).
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7 days
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Body fatness
Zeitfenster: 7 days
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Difference in percentage of body fat between two experimental trials measured by TANITA scales (TBF-300, Cranela, UK).
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7 days
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Dietary Intake
Zeitfenster: 3 days and 24 hours
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Difference in energy/macronutrient intake prior to and during the experimental trails measured from weighted food records
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3 days and 24 hours
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Mitarbeiter und Ermittler
Sponsor
Ermittler
- Studienstuhl: Dale Malkova, PhD, University of Glasgow
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn (Tatsächlich)
Primärer Abschluss (Voraussichtlich)
Studienabschluss (Voraussichtlich)
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Tatsächlich)
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Tatsächlich)
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Schlüsselwörter
Andere Studien-ID-Nummern
- Glasgow University
Arzneimittel- und Geräteinformationen, Studienunterlagen
Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt
Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt
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