The Influence of Glucose Flux on Fat Synthesis in a Whole Body Calorimeter
1. august 2017 opdateret af: JeyaKumar Henry, Clinical Nutrition Research Centre, Singapore
The Impact of a Low Glycaemic Index (GI) Diet on Daily Blood Glucose Profiles and Energy Flux in Male Chinese Adults.
The study is carried out to find out the inclusion of high and low glycaemic index foods to daily meals and how they impact 24 hour blood glucose fluctuations and energy regulation.
Studieoversigt
Status
Afsluttet
Betingelser
Intervention / Behandling
Detaljeret beskrivelse
The GI is a method of classifying foods based on the food's ability to raise the blood glucose level.
Low GI foods are recommended as they have a lower impact on blood glucose concentrations.
The research sets out to determine the effect of GI on 24 hour blood glucose profiles and energy regulation in Asians.
Healthy, normal-weight, Chinese males will be recruited.
There will be two sessions (consisting of four days for each session) where they will consume either a high or low GI breakfast, lunch, snack (in the whole body calorimeter), and a high or low glycaemic index dinner at home.
They will take part in two test sessions (each spanning over 3 days) with at least five days in between the two sessions.
Their glycaemic response will be measured using a Continuous Glucose Monitoring System (CGMS) throughout the period, while substrate oxidation will be measured over 10 hours in the calorimeter (from breakfast, lunch and snack).
This study specifically attempts to see how having high and low GI meals impact on blood glucose levels and energy regulation in Asians.
The study is important in that it will be the first of its kind in the whole body calorimeter and enable us to compute the rate of fat synthesis and how it is modulated when subjects are fed a high GI diet (increased glucose excursions) and a low GI diet ( blunted glucose) over 24 hours in healthy Asians.
Obesity and diabetes rates are increasing exponentially in Asian populations and Singapore is no exception.
Devising ways and means to staunch the escalation is therefore a priority.
The findings of the research will contribute towards the long-term objectives of developing Asian specific dietary guidelines for weight and glycaemic control.
The study data will also be important for the provision of practical food-based advocacy for better weight and glycaemic control in Singaporeans.
Undersøgelsestype
Interventionel
Tilmelding (Faktiske)
15
Fase
- Ikke anvendelig
Deltagelseskriterier
Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.
Berettigelseskriterier
Aldre berettiget til at studere
21 år til 40 år (Voksen)
Tager imod sunde frivillige
Ja
Køn, der er berettiget til at studere
Han
Beskrivelse
Inclusion Criteria:
- Chinese, male
- Age between 21-40 years
- Body mass index between 17 to 25 kg/m2
- Normal blood pressure (<140/80 Hgmm)
- Fasting blood glucose < 6 mmol/L
Exclusion Criteria:
- Having any metabolic diseases (such as diabetes, hypertension etc)
- On prescription medication
- Having glucose 6-phosphate dehydrogenase deficiency (G6PD)
- Partaking in sports at the competitive and/or endurance levels
- Allergic/intolerant to any of the test foods
- Intentionally restricting food intake
- Smoking
Studieplan
Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Andet
- Tildeling: Randomiseret
- Interventionel model: Crossover opgave
- Maskning: Ingen (Åben etiket)
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
|---|---|
|
Eksperimentel: Breakfast, lunch, snack and dinner (high GI)
Subjects will consume meals which are high glycemic index for breakfast (Honey stars cereal), lunch (glutinous rice meal) and snack (white bread and jam) in the whole body calorimeter.
A take-away high glycemic index dinner will be provided.
|
These meals (cereal, rice and bread meals) will be tested in subjects for their glycaemic response (CGMS) and substrate utilization (calorimeter)
|
|
Eksperimentel: Breakfast, lunch, snack and dinner (low GI)
Subjects will consume meals which are low glycemic index for breakfast (All bran cereal), lunch (basmati rice meal) and snack (multigrain bread and sugar-free jam) in the whole body calorimeter.
A take-away low glycemic index dinner will be provided.
|
These meals (cereal, rice and bread meals) will be tested in subjects for their glycaemic response (CGMS) and substrate utilization (calorimeter)
|
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Daglig blodsukkerprofil
Tidsramme: 24 timer
|
Den daglige totale blodsukkerrespons måles for hver lav- og høj GI-behandling som området under kurven over 24 timer ved hjælp af CGMS til morgenmad, frokost, mellemmåltid og aftensmad.
|
24 timer
|
|
Glycaemic response The blood glucose response to low and high GI test foods measured 2 hours post consumption using the Continuous Glucose Monitoring System (CGMS)
Tidsramme: 2 hours post consumption
|
The blood glucose response to low and high GI test foods measured 2 hours post consumption using the Continuous Glucose Monitoring System (CGMS) The blood glucose response to low and high GI test foods measured 2 hours post consumption using the Continuous Glucose Monitoring System (CGMS) |
2 hours post consumption
|
|
Substrate oxidation
Tidsramme: 2 hours post consumption
|
The carbohydrate and fat oxidation (i.e Respiratory Quotient) after consumption of low and high GI test foods measured 2 hours post consumption using indirect calorimetry in a whole body calorimeter.
This is done over 10 hours in the whole body calorimeter measured for breakfast, lunch and snack only
|
2 hours post consumption
|
Samarbejdspartnere og efterforskere
Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.
Publikationer og nyttige links
Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.
Datoer for undersøgelser
Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.
Studer store datoer
Studiestart (Faktiske)
14. november 2014
Primær færdiggørelse (Faktiske)
31. juli 2017
Studieafslutning (Faktiske)
31. juli 2017
Datoer for studieregistrering
Først indsendt
11. december 2015
Først indsendt, der opfyldte QC-kriterier
11. december 2015
Først opslået (Skøn)
15. december 2015
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
2. august 2017
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
1. august 2017
Sidst verificeret
1. august 2017
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- 2014/00960
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
INGEN
IPD-planbeskrivelse
No plan to share data
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