- ICH GCP
- Registro degli studi clinici negli Stati Uniti
- Sperimentazione clinica NCT04659850
Impact of AGEs on Metabolism & Cognition (AGEs)
Do Dietary AGEs Have an Acute Effect on Metabolism and Cognition
Panoramica dello studio
Stato
Condizioni
Descrizione dettagliata
This study will be a short-term, randomized, double-blind, cross-over trial. Volunteers will be younger (18-30 years) and older (55-75 years) men and women, normal and overweight (BMI>19 to 29.9). N=24 in each age group.
Medical screening for all study volunteers and neuropsychological screening will be carried out prior to study start. A small, pin prick, fasted blood sample will be taken to measure glucose and HbA1C levels to rule out type 2 diabetics. Anthropometric and body composition measurements will also be taken. Body weight and height will be measured using a scale and a stadiometer to the nearest 0.5 kg and 0.5 cm, respectively. Waist and hip circumferences will be measured and the waist-to-hip ratio calculated. Standard procedures will be followed for the anthropometric measurements and the average of three measurements taken. Neuropsychological screening may be repeated on another day if volunteers are borderline on their first visit as scores may vary by a couple of points depending on external events i.e. vounteers are having a bad day. Experienced staff will carry out abdominal fat measurements by manual determination of the area between the upper surface of the second lumbar vertebra, the lower surface of the fourth lumbar vertebra, and the lateral margins of the outer rib cage. If the Viscan is available we will use that to measure abdominal fat. Venous blood samples will be collected as appropriate for the hormones and metabolites to be tested and stored at -70 °C.
The day prior to the challenge volunteers will visit the Human Nutrition Unit (HNU, RINH). They will be given a low AGE breakfast and be supplied with a low AGE lunch and dinner for that day and instructed not to consume anything else. After an overnight fast volunteers will receive a one-off dose of either high AGE (11.4 mgs) or low AGE (2.4 mgs) whey protein delivered in a either a low or high fat milkshake (400ml) blended with flavours and a consistent quantity of sugar. All ingredients will be commercially available and of food grade. Apart from differences in fat and AGE the content of shakes will be closely balanced for sugar and other components. All participants will be asked to answer two questionnaires one to determine their habitual intake of dietary AGEs and one to determine their level of physical activity.
The different milkshakes will be tested with a minimum 7 day wash out period between tests. Volunteers will be randomised to each test group. After a 12 h overnight fast and a standardised intake the day prior to the tests, and no strenuous physical activity for 2 days previously, subjects will attend the HNU. Volunteers will be requested to provide a small urine sample for AGE analysis. An intravenous catheter will then be placed in an antecubital vein and flushed with saline between aspirations to keep the catheter clear. After a short resting period, a blood sample will be taken prior to the first memory test then a single milkshake will be consumed under supervision. Blood samples will be taken immediately before the milkshake ingestion (0 min) and after 30, 60, 90, 120, 150 and 180 and 240 min. Further computer based memory tests will be carried out at 30, 90 and 240 minutes. A urine sample will be requested at the end of the study before participants are offered lunch. Memory tests have been designed by Dr Ros Langston (University of Dundee) and Dr Kevin Allan, School of Psychology and will be carried out on lap tops specifically designated for this study. Blood and urine will be analysed for AGEs. Blood will also be analysed for glucose lipids and hormones. Dr Janice Drew will also analyse blood samples for gene expression of the SIRT-1/NAD+ complex indicative of the response of individuals to dietary challenge.
Tipo di studio
Iscrizione (Anticipato)
Fase
- Non applicabile
Contatti e Sedi
Luoghi di studio
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Scotland
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Aberdeen, Scotland, Regno Unito, AB252ZD
- Reclutamento
- University of Aberdeen Rowett Institute of Nutrition and Health
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Contatto:
- Fiona Campbell, PHD
- Numero di telefono: 01224438617
- Email: fiona.campbell@abdn.ac.uk
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Contatto:
- Christine Grant, HNC Biology
- Numero di telefono: 01224438708
- Email: christine.grant@abdn.ac.uk
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Criteri di partecipazione
Criteri di ammissibilità
Età idonea allo studio
Accetta volontari sani
Sessi ammissibili allo studio
Descrizione
Inclusion Criteria:
- Heathy
- Sedentary
- 18-30 or
- 55-75
Exclusion Criteria:
- diagnosed type 2 diabetes,
- CVD
- history of neurological abnormalities
- current psycho-active medication
- current anti-inflammatory medication
- Current glucose lowering medication
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
- Scopo principale: Prevenzione
- Assegnazione: Randomizzato
- Modello interventistico: Assegnazione incrociata
- Mascheramento: Doppio
Armi e interventi
Gruppo di partecipanti / Arm |
Intervento / Trattamento |
---|---|
Altro: Group 1
Group 1 participants in the young 18 - 30 age group
|
low fat, low AGE milkshake given after an overnight fast
low fat, high AGE milkshake given after an overnight fast
high fat, low AGE milkshake given after an overnight fast
high fat, high AGE milkshake given after an overnight fast
|
Altro: Group 2
Group 2 participants in the older 55 - 75 age group
|
low fat, low AGE milkshake given after an overnight fast
low fat, high AGE milkshake given after an overnight fast
high fat, low AGE milkshake given after an overnight fast
high fat, high AGE milkshake given after an overnight fast
|
Cosa sta misurando lo studio?
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
---|---|---|
Impact of Advanced Glycation End Products on Metabolism and Cognition
Lasso di tempo: Four weeks per participant
|
Habitual AGE intake, determined from dietary questionnaires, specifically designed for this purpose, taken at the start of the study, will be correlated with levels of circulating AGEs and outcomes such as inflammatory markers and expression of genes associated with susceptibility to metabolic disease and acute response to dietary challenge will be measured.
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Four weeks per participant
|
Collaboratori e investigatori
Sponsor
Collaboratori
Investigatori
- Investigatore principale: Fiona Campbell, PHD, UoA Rowett Institute of Nutrition and Health
Studiare le date dei record
Studia le date principali
Inizio studio (Effettivo)
Completamento primario (Anticipato)
Completamento dello studio (Anticipato)
Date di iscrizione allo studio
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Effettivo)
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Effettivo)
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Altri numeri di identificazione dello studio
- 2017/RI/5
Informazioni su farmaci e dispositivi, documenti di studio
Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti
Studia un dispositivo regolamentato dalla FDA degli Stati Uniti
Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .
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