Healthy Clinical Trial
— SAIMESOfficial title:
Randomised, Double-blind, Placebo Controlled Cross-over Study to Determine the Beneficial Effects of Synbiotics and PromitorTM (Soluble Corn Flour)on Metabolism and Immunity in Healthy 60-80 Years Old Individuals
Verified date | May 2017 |
Source | University of Roehampton |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Interventional |
The aging process leads to a marked decline in immune function (immunosenescence), causing a significant reduction in immune response after vaccination or infections. Dietary intervention is an attractive, safe and non-invasive way to impact on gut bacteria and subsequently the functioning of the immune system. The ability of the dietary supplementation to alter these functions can be of particular importance in those groups that have an underdeveloped, poorly functioning immune system such as infants, immuno-compromised subjects or elderly. Research over the past two decades has provided evidence that administration of probiotics (live microorganisms which, when administered in adequate amounts, confer a health benefit on the host) could enhance immune function. Lactobacilli and bifidobacteria are the most common probiotics used in humans and various strains have been shown to have immunostimulatory properties in vitro and in experimental models, these properties include modulation of cytokine production. evidence exists of the immunostimulating effects of certain probiotics and the potential to use prebiotics to increase the levels of beneficial bacteria (which are known to be reduced in elderly population). Furthermore, by providing a probiotic at the same time as a prebiotic conditions for survival are enhanced. To date, only a small number of studies conducted have been randomised and/or placebo controlled to unequivocally demonstrate efficacies.
Status | Completed |
Enrollment | 40 |
Est. completion date | January 2015 |
Est. primary completion date | October 2014 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | All |
Age group | 60 Years to 80 Years |
Eligibility |
Inclusion criteria: - aged between 60 and 80 years of age. - in good general health, defined as no comorbidities requiring regular medical follow up - Ability to communicate well with the investigator and to comply with the requirements of the entire study Exclusion criteria: - History or evidence of organic disease of the gastrointestinal tract; such as tumour, irritable bowel syndrome, etc., within the previous 5 years - Consumed probiotic or prebiotic preparations on a regular basis (at least 3 times per week) in the last 2 weeks and during the trial period - Former participation in another study involving prebiotic or probiotic preparations or investigational drugs within the previous 6 months, or intention to use such drugs during the course of the study - Undergone surgical resection of any part of the bowel - History of malignancy within the previous 5 years (with exception of well-treated basal cell carcinoma or in situ cervical carcinoma). - Currently prescribed immunosuppressive drugs - Intention to use regularly other medication which affects gastrointestinal motility and/or perception - Current or recent history (within 12 months) of significant drug or alcohol abuse or dependence |
Country | Name | City | State |
---|---|---|---|
United Kingdom | Department of Food and Nutritional Sciences, University of Reading | Reading |
Lead Sponsor | Collaborator |
---|---|
University of Roehampton |
United Kingdom,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Other | Digestive symptoms | Bristol diary form | Changes from baseline to 21 days synbiotics and PromitorTM treatment | |
Other | Microbiota activity (intestinal gas production) | Intestinal gas evacuation on standardized diet | Changes from baseline to 21 days synbiotics and PromitorTM treatment | |
Primary | The modulation of the gut microbiota by synbiotics and PromitorTM inflammatory/immune biomarkers | Fecal16S rRNA amplicon sequencing to assess changes in fecal bacterial abundance and species diversity | Changes from baseline to 21 days synbiotics and PromitorTM treatment | |
Secondary | The modulation of immune function by synbiotics and PromitorTM | Blood samples analysis to assess changes in cytokines production | Changes from baseline to 21 days synbiotics and PromitorTM treatment |
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