The Effect of Dietary Fibre and Plant Protein on Appetite and Metabolic Function
21 de octubre de 2013 actualizado por: Isabella Lee, Swedish University of Agricultural Sciences
The Combined Effect of Dietary Fibre and Plant Protein on Appetite and Metabolic Function After Short-Term Consumption
Acute effects on appetite and metabolic function have been observed for whole-grain rye cereal products.
The aim of this study is to evaluate if the appetite suppressing effect of a whole-grain rye breakfast cereal may be further enhanced by the addition of fermentable dietary fibre and plant protein.
The aim is also to try to elucidate how observed effects on subjective appetite are mediated in terms of changes in hormonal signals, flow of nutrients in the blood and products from bacterial fermentation of dietary fibre, and to relate this to the different composition of the breakfasts.
Descripción general del estudio
Estado
Terminado
Condiciones
Descripción detallada
The short-term effects (up to 8 hours after intake) of dietary fibre and plant protein on subjective appetite and metabolism will be evaluated using a randomized cross-over study design.
Each participant will consume six different breakfasts on six different occasions separated by a 1 week wash-out period: three rye porridges supplemented with three different combinations of added fermentable dietary fibre and plant protein, two non-supplemented rye porridges differing in amount of rye and one wheat bread.
Participants will rate subjective appetite (satiety, hunger and desire to eat) by using a visual analog scale (VAS) every 30 min during an 8-hour period, starting 30 min before breakfast.
The concentration of hydrogen and methane in the breath, as indicators of bacterial fermentation of dietary fibre, will be measured every hour.
Blood samples will be collected before breakfast and at regular intervals throughout the day for analysis of glucose and hormone levels.
The metabolic profile in the blood will be assessed as well as products from bacterial fermentation of dietary fibre, such as short chain fatty acids.
Gastric emptying rate will also be evaluated using paracetamol as an indicator.
Hormonal responses, changes in the metabolome and fermentation products will be related to subjective appetite and to differences in composition of the breakfasts.
Tipo de estudio
Intervencionista
Inscripción (Actual)
22
Fase
- No aplica
Contactos y Ubicaciones
Esta sección proporciona los datos de contacto de quienes realizan el estudio e información sobre dónde se lleva a cabo este estudio.
Ubicaciones de estudio
-
-
-
Uppsala, Suecia, SE-751 85
- Paediatric Research Facility; The Children's Hospital at Uppsala University Hospital
-
-
Criterios de participación
Los investigadores buscan personas que se ajusten a una determinada descripción, denominada criterio de elegibilidad. Algunos ejemplos de estos criterios son el estado de salud general de una persona o tratamientos previos.
Criterio de elegibilidad
Edades elegibles para estudiar
18 años a 60 años (Adulto)
Acepta Voluntarios Saludables
Sí
Géneros elegibles para el estudio
Todos
Descripción
Inclusion Criteria:
- Women must be post-menopausal or habitually take hormonal contraceptives
- Habitual breakfast eaters
Exclusion Criteria:
- Non-contraceptive use among pre-menopausal women
- Pregnancy, lactation or wishing to become pregnant during the study period
- Dieting
- Weightloss
- Eating disorder
- Hyperglycemic
- Hyperinsulinemic
- Thyroid disease
- Metabolic issues
- Diabetes
- Physical or psychological problems eating
- Food intolerances/allergies to foods included in the study
- Vegetarians
- Intolerance/allergy to paracetamol
- Heavy smokers
- Recent or concurrent participation in an intervention research study
Plan de estudios
Esta sección proporciona detalles del plan de estudio, incluido cómo está diseñado el estudio y qué mide el estudio.
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Ciencia básica
- Asignación: Aleatorizado
- Modelo Intervencionista: Asignación cruzada
- Enmascaramiento: Único
Armas e Intervenciones
Grupo de participantes/brazo |
Intervención / Tratamiento |
|---|---|
|
Experimental: Rye + high dose inulin + low dose gluten
Rye porridge supplemented with a high dose of the fermentable dietary fibre inulin and low dose of the plant protein gluten.
|
In a randomized cross-over design each subject receive one of six iso-caloric breakfasts on six different occasions, separated by 1 w wash-out.
In a randomized cross-over design each subject receive one of six iso-caloric breakfasts on six different occasions, separated by 1 w wash-out.
In a randomized cross-over design each subject receive one of six iso-caloric breakfasts on six different occasions, separated by 1 w wash-out.
In a randomized cross-over design each subject receive one of six iso-caloric breakfasts on six different occasions, separated by 1 w wash-out.
In a randomized cross-over design each subject receive one of six iso-caloric breakfasts on six different occasions, separated by 1 w wash-out.
|
|
Experimental: Rye + equal doses of inulin & gluten
Rye porridge supplemented with equal doses of the fermentable dietary fibre inulin and the plant protein gluten.
|
In a randomized cross-over design each subject receive one of six iso-caloric breakfasts on six different occasions, separated by 1 w wash-out.
In a randomized cross-over design each subject receive one of six iso-caloric breakfasts on six different occasions, separated by 1 w wash-out.
In a randomized cross-over design each subject receive one of six iso-caloric breakfasts on six different occasions, separated by 1 w wash-out.
In a randomized cross-over design each subject receive one of six iso-caloric breakfasts on six different occasions, separated by 1 w wash-out.
In a randomized cross-over design each subject receive one of six iso-caloric breakfasts on six different occasions, separated by 1 w wash-out.
|
|
Experimental: Rye + low dose inulin + high dose gluten
Rye porridge supplemented with a low dose of the fermentable dietary fibre inulin and a high dose of the plant protein gluten.
|
In a randomized cross-over design each subject receive one of six iso-caloric breakfasts on six different occasions, separated by 1 w wash-out.
In a randomized cross-over design each subject receive one of six iso-caloric breakfasts on six different occasions, separated by 1 w wash-out.
In a randomized cross-over design each subject receive one of six iso-caloric breakfasts on six different occasions, separated by 1 w wash-out.
In a randomized cross-over design each subject receive one of six iso-caloric breakfasts on six different occasions, separated by 1 w wash-out.
In a randomized cross-over design each subject receive one of six iso-caloric breakfasts on six different occasions, separated by 1 w wash-out.
|
|
Experimental: Large non-supplemented rye
Large portion of rye porridge without supplements.
|
In a randomized cross-over design each subject receive one of six iso-caloric breakfasts on six different occasions, separated by 1 w wash-out.
In a randomized cross-over design each subject receive one of six iso-caloric breakfasts on six different occasions, separated by 1 w wash-out.
In a randomized cross-over design each subject receive one of six iso-caloric breakfasts on six different occasions, separated by 1 w wash-out.
In a randomized cross-over design each subject receive one of six iso-caloric breakfasts on six different occasions, separated by 1 w wash-out.
In a randomized cross-over design each subject receive one of six iso-caloric breakfasts on six different occasions, separated by 1 w wash-out.
|
|
Experimental: Small non-supplemented rye
Small portion of rye porridge without supplements.
|
In a randomized cross-over design each subject receive one of six iso-caloric breakfasts on six different occasions, separated by 1 w wash-out.
In a randomized cross-over design each subject receive one of six iso-caloric breakfasts on six different occasions, separated by 1 w wash-out.
In a randomized cross-over design each subject receive one of six iso-caloric breakfasts on six different occasions, separated by 1 w wash-out.
In a randomized cross-over design each subject receive one of six iso-caloric breakfasts on six different occasions, separated by 1 w wash-out.
In a randomized cross-over design each subject receive one of six iso-caloric breakfasts on six different occasions, separated by 1 w wash-out.
|
|
Comparador activo: Refined wheat bread
Refined wheat bread.
|
In a randomized cross-over design each subject receive one of six iso-caloric breakfasts on six different occasions, separated by 1 w wash-out.
In a randomized cross-over design each subject receive one of six iso-caloric breakfasts on six different occasions, separated by 1 w wash-out.
In a randomized cross-over design each subject receive one of six iso-caloric breakfasts on six different occasions, separated by 1 w wash-out.
In a randomized cross-over design each subject receive one of six iso-caloric breakfasts on six different occasions, separated by 1 w wash-out.
In a randomized cross-over design each subject receive one of six iso-caloric breakfasts on six different occasions, separated by 1 w wash-out.
|
¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
|
Subjective appetite profiles
Periodo de tiempo: 8 h (-30, 0, 30, 60, 90, 120, 150, 180, 210, 240, 270, 300, 330, 360, 390, 420, 450, 480)
|
Subjective feelings of appetite (satiety, hunger and desire to eat) are assessed by visual analogue scale (VAS) (in total 18 measurements).
|
8 h (-30, 0, 30, 60, 90, 120, 150, 180, 210, 240, 270, 300, 330, 360, 390, 420, 450, 480)
|
Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
|
Breath hydrogen and methane response
Periodo de tiempo: 8 h (-30, 30, 90, 150, 210, 270, 330, 390, 450, 480)
|
Measurements of the concentration of breath hydrogen and methane(in total 10 measurements).
|
8 h (-30, 30, 90, 150, 210, 270, 330, 390, 450, 480)
|
|
Gastric emptying rate
Periodo de tiempo: 8 h (-15, 15, 35, 65, 95, 125, 185, 230, 275, 305, 365, 470)
|
Paracetamol (1 g) was taken with breakfast.
The appearance of paracetamol in the blood is directly related to the rate of gastric emptying.
|
8 h (-15, 15, 35, 65, 95, 125, 185, 230, 275, 305, 365, 470)
|
|
Glucose and hormonal response
Periodo de tiempo: 8 h (-15, 15, 35, 65, 95, 125, 185, 230, 275, 305, 365, 470)
|
Glucose, insulin, glucagon, glucagon-like peptide-1 (GLP-1), glucose-dependent insulino-tropic polypeptide (GIP), peptide YY (PYY), cholecystokinin (CCK), leptin and ghrelin are measured in plasma samples.
|
8 h (-15, 15, 35, 65, 95, 125, 185, 230, 275, 305, 365, 470)
|
|
Metabolic profiles
Periodo de tiempo: 8 h (-15, 15, 35, 65, 95, 125, 185, 230, 275, 305, 365, 470)
|
The flux of nutrients is measured in plasma samples.
|
8 h (-15, 15, 35, 65, 95, 125, 185, 230, 275, 305, 365, 470)
|
|
Products from bacterial fermentation of dietary fibre
Periodo de tiempo: 8 h (-15, 15, 35, 65, 95, 125, 185, 230, 275, 305, 365, 470)
|
Products from bacterial fermentation of dietary fibre are measured in plasma samples.
|
8 h (-15, 15, 35, 65, 95, 125, 185, 230, 275, 305, 365, 470)
|
|
Ad libitum food intake
Periodo de tiempo: 8 h after breakfast (480 min)
|
Energy intakes will be assessed from the ad libitum dinner in order to validate subjective appetite measurements.
|
8 h after breakfast (480 min)
|
Colaboradores e Investigadores
Aquí es donde encontrará personas y organizaciones involucradas en este estudio.
Patrocinador
Colaboradores
Investigadores
- Investigador principal: Rikard K Landberg, Ass. Prof., Swedish University of Agricultural Sciences
Fechas de registro del estudio
Estas fechas rastrean el progreso del registro del estudio y los envíos de resultados resumidos a ClinicalTrials.gov. Los registros del estudio y los resultados informados son revisados por la Biblioteca Nacional de Medicina (NLM) para asegurarse de que cumplan con los estándares de control de calidad específicos antes de publicarlos en el sitio web público.
Fechas importantes del estudio
Inicio del estudio
1 de marzo de 2013
Finalización primaria (Actual)
1 de agosto de 2013
Finalización del estudio (Actual)
1 de agosto de 2013
Fechas de registro del estudio
Enviado por primera vez
16 de septiembre de 2013
Primero enviado que cumplió con los criterios de control de calidad
15 de octubre de 2013
Publicado por primera vez (Estimar)
18 de octubre de 2013
Actualizaciones de registros de estudio
Última actualización publicada (Estimar)
22 de octubre de 2013
Última actualización enviada que cumplió con los criterios de control de calidad
21 de octubre de 2013
Última verificación
1 de octubre de 2013
Más información
Términos relacionados con este estudio
Palabras clave
Otros números de identificación del estudio
- SLU-IL-S1
Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .