The Effect of Prebiotics on Gastrointestinal Functioning and Metabolism
Effect of Prebiotic Fibre on Intestinal Health and Functioning
Visão geral do estudo
Status
Status
Condições
Condições
Intervenção / Tratamento
Intervenção / Tratamento
Descrição detalhada
Tipo de estudo
Tipo de estudo
Inscrição (Real)
Inscrição
Estágio
Estágio
- Não aplicável
Critérios de participação
Critérios de elegibilidade
Critérios de elegibilidade
Idades elegíveis para estudo
Aceita Voluntários Saudáveis
Gêneros Elegíveis para o Estudo
Descrição
Inclusion Criteria:
- Overweight to obese men and women (BMI ≥ 25 kg/m2 <35 kg/m2)
- Aged 20-50 years
- Caucasian
- Normal fasting glucose (<6.1 mmol/L.)
- Normal blood pressure (systolic blood pressure 100-140 mmHg, diastolic blood pressure 60-90 mmHg)
- Weight stable in last 3 months (±2 kg)
- A low defecation frequency, <4 times/week and no constipation or underlying pathology, as determined by gastro-intestinal questionnaires).
- A slow whole gut transit (>35h)
Exclusion Criteria:
- Woman lactating, pregnant (where pregnancy is defined as the state of a female after conception and until the termination of gestation, confirmed by a positive hCG laboratory test) or (post)-menopausal
- Regular smokers
- People with intensive fitness training, eg. athletes (≥3 per week ≥ 1 hour training)
- Diabetes Mellitus (defined as FPG ≥ 7.0 mmol/l and or 2h PG ≥ 11.1 mmol/l)
- Gastro-intestinal diseases or abdominal surgery, cardiovascular diseases, cancer, liver or kidney malfunctioning (determined based on ALAT and creatinine levels, respectively) disease with a life expectation shorter than 5 years
- Following a hypocaloric diet
- Gluten intolerance
- Regular use of laxation products, or use of antibiotics, probiotics or prebiotics 3 months prior to the start of the study
More than 2 symptoms occurring over a period of 12 weeks in the preceding 12 months such as
- Straining in >1/4 defecations;
- Lumpy or hard stools in >1/4 defecations;
- Sensation of incomplete evacuation in >1/4 defecations;
- Sensation of anorectal obstruction/blockade in >1/4 defecations
- Manual maneuvers to facilitate >1/4 defecations (e.g., digital evacuation, support of the pelvic floor); and/or
- <3 defecations/week
- Current use of medication interfering with study intervention or interfering with study endpoints/hypotheses
- Not to be able to understand the study information
- Blood donation 2 months prior to the study and during the study
- Participation in other studies
Plano de estudo
Como o estudo é projetado?
Detalhes do projeto
- Finalidade Principal: Ciência básica
- Alocação: Randomizado
- Modelo Intervencional: Atribuição Paralela
- Mascaramento: Triplo
Número de braços
Armas e Intervenções
Grupo de Participantes / BraçoGrupo de Participantes / Braço |
Intervenção / TratamentoIntervenção / Tratamento |
|---|---|
|
Comparador de Placebo: Placebo
12 weeks placebo maltodextrin 15g/day ( 5 g in beverage, to be consumed three times a day)
|
12 weeks daily intake of 15g of maltodextrin
Outros nomes:
|
|
Experimental: soluble wheat bran fibre
12 weeks soluble wheat bran fibre 15g/day (5 g in beverage, to be consumed three times a day)
|
12 weeks daily intake of 15g of soluble wheat bran fibre
|
O que o estudo está medindo?
Medidas de resultados primários
Medidas de resultados primários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
|
Whole gut transit time [hours]
Prazo: measured at baseline at week 1 and directly after the 12 week supplementation
|
Whole gut transit time as measured by radio-opaque marker method
|
measured at baseline at week 1 and directly after the 12 week supplementation
|
Medidas de resultados secundários
Medidas de resultados secundários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
|
Gastric emptying [min]
Prazo: measured at baseline at week 1 and directly after the 12 week supplementation
|
Gastric emptying measured by isotope breath test
|
measured at baseline at week 1 and directly after the 12 week supplementation
|
|
Oro-cecal transit time [min]
Prazo: measured at baseline at week 1 and directly after the 12 week supplementation
|
Oro-cecal transit time measured by hydrogen breath test
|
measured at baseline at week 1 and directly after the 12 week supplementation
|
|
Defecation frequency (bowel movement per day)
Prazo: measured at baseline at week 1 and directly after the 12 week supplementation
|
Defecation frequency as measured via questionnaire
|
measured at baseline at week 1 and directly after the 12 week supplementation
|
|
Energy expenditure
Prazo: measured at baseline at week 1 and directly after the 12 week supplementation
|
Energy expenditure measured by indirect calorimetry
|
measured at baseline at week 1 and directly after the 12 week supplementation
|
|
Substrate oxidation
Prazo: measured at baseline at week 1 and directly after the 12 week supplementation
|
Fat and carbohydrate oxidation measured by indirect calorimetry
|
measured at baseline at week 1 and directly after the 12 week supplementation
|
|
Plasma inflammatory cytokines Interleukin-6,8 and 1 (pg/ml)
Prazo: measured at baseline at week 1 and directly after the 12 week supplementation
|
IL-6, IL8,IL-1 measured by enzyme linked immunosorbent assay
|
measured at baseline at week 1 and directly after the 12 week supplementation
|
|
Adipose tissue gene expression
Prazo: measured at baseline at week 1 and directly after the 12 week supplementation
|
Adipose tissue gene expression measured by quantitative real time polymerase chain reaction
|
measured at baseline at week 1 and directly after the 12 week supplementation
|
|
Gut permeability
Prazo: measured at baseline at week 1 and directly after the 12 week supplementation
|
Gut permeability as measured by multi sugar assay
|
measured at baseline at week 1 and directly after the 12 week supplementation
|
|
Microbiota composition
Prazo: measured at baseline at week 1 and directly after the 12 week supplementation
|
Microbiota composition as measured by illumina sequencing in feces
|
measured at baseline at week 1 and directly after the 12 week supplementation
|
|
Fecal Short chain fatty acid concentrations
Prazo: measured at baseline at week 1 and directly after the 12 week supplementation
|
Fecal Short chain fatty acid concentrations measured by ion exchange chromatography with conductivity detection
|
measured at baseline at week 1 and directly after the 12 week supplementation
|
|
Plasma short chain fatty acid concentrations
Prazo: measured at baseline at week 1 and directly after the 12 week supplementation
|
Plasma short chain fatty acid concentrations measured by liquid chromatography-mass spectrometry
|
measured at baseline at week 1 and directly after the 12 week supplementation
|
Colaboradores e Investigadores
Patrocinador
Patrocinador
Publicações e links úteis
Datas de registro do estudo
Datas Principais do Estudo
Início do estudo
Início do estudo
Conclusão Primária (Real)
Conclusão Primária
Conclusão do estudo (Real)
Conclusão do estudo
Datas de inscrição no estudo
Enviado pela primeira vez
Enviado pela primeira vez
Enviado pela primeira vez que atendeu aos critérios de CQ
Enviado pela primeira vez que atendeu aos critérios de CQ
Primeira postagem (Estimativa)
Primeira postagem
Atualizações de registro de estudo
Última Atualização Postada (Real)
Última Atualização Postada
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última verificação
Última verificação
Mais Informações
Termos relacionados a este estudo
Outros números de identificação do estudo
Outros números de identificação do estudo
- NL52300.068.15
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