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Sponsors and Collaborators: |
Laval University Ultima Food Inc McGill University TransBiothec |
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Information provided by: | Laval University |
ClinicalTrials.gov Identifier: | NCT00730626 |
The purpose of this study is to determine the dose-response effect of a yogurt containing a combination of bifidobacterium Lactis (BB-12) and Lactobacillus Acidophilus (LA-5) and green tea extract on markers of the immune system and gut health in healthy subjects. We hypothesize that the response of the immune function will be dose-dependent of the probiotics found in the fermented yogurt.
Condition | Intervention |
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Immune System |
Dietary Supplement: Yogurt with 1X10E9 BB-12 and LA-5 Dietary Supplement: Yogurt with 1X10E10 BB-12 and LA-5 Dietary Supplement: Yogurt Placebo |
Study Type: | Interventional |
Study Design: | Prevention, Randomized, Double Blind (Subject, Investigator, Outcomes Assessor), Parallel Assignment, Efficacy Study |
Official Title: | Dose Response Study of the Impact of a Yogurt Containing Bifidobacterium Lactis BB-12 and Lactobacillus Acidophilus LA-5 on the Immune System and Gut Health. |
Estimated Enrollment: | 60 |
Study Start Date: | August 2008 |
Estimated Study Completion Date: | March 2009 |
Estimated Primary Completion Date: | December 2008 (Final data collection date for primary outcome measure) |
Arms | Assigned Interventions |
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1: Experimental
L.acidophilus and B.lactis (1x10E9 of each probiotics) with 40 mg of green the extract
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Dietary Supplement: Yogurt with 1X10E9 BB-12 and LA-5
100g of yogurt containing the probiotics L.acidophilus and B.lactis (concentrations of 1x10E9 of each probiotics) with 40 mg of green tea extract, once a day for 10 weeks.
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2: Experimental
L.acidophilus and B.lactis (1x 10E10 of each probiotics) with 40 mg of green tea extract
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Dietary Supplement: Yogurt with 1X10E10 BB-12 and LA-5
100g of yogurt containing the probiotics L.acidophilus and B.lactis (concentrations of 1x10E10 of each probiotics) with 40 mg of green tea extract, once a day for 10 weeks.
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3: Placebo Comparator
Placebo
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Dietary Supplement: Yogurt Placebo
100g of yogurt placebo containing no probiotics and no green tea extract, once a day for 10 weeks.
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There is an increasing list of food containing probiotics on the market. Several studies have emphasized the health benefits of single probiotics, particularly on the immune system. However, it is unclear how a combination of two different probiotics complemented with green tea extract can beneficially modify markers of the immune.
The aim of this study is to determine the dose-response effect of a yogurt containing a combination of bifidobacterium lactis (BB-12) and Lactobacillus Acidophilus LA-5 and green tea extract on immune system in healthy subjects. More specifically, this randomized, parallel placebo controlled study will investigate the impact of increasing doses (109 and 1010) of these probiotics on phagocytosis activity, oxidative metabolism and on the antipneumococcics antibody specific serotype response S. pneumoniae vaccination. Finally, this study will also examine the effect of increasing dose of these probiotics on intestinal microflora and blood lipids.
Ages Eligible for Study: | 18 Years to 55 Years |
Genders Eligible for Study: | Both |
Accepts Healthy Volunteers: | Yes |
Inclusion Criteria:
Exclusion Criteria:
Canada | |
Institute of Nutraceuticals and Functional Foods (INAF), Laval University | |
Quebec, Canada, G1V 0A6 |
Principal Investigator: | Benoît Lamarche, PhD | Institute of Nutraceuticals and Functional Foods (INAF), Laval University. |
Study Director: | Jacques Hébert, MD | Faculty of Medicine, Laval University. |
Responsible Party: | Institute of Nutraceuticals and Functional Foods (INAF), Laval University ( Benoît Lamarche, Study Principal Investigator ) |
Study ID Numbers: | INAF-119 |
Study First Received: | August 6, 2008 |
Last Updated: | October 31, 2008 |
ClinicalTrials.gov Identifier: | NCT00730626 |
Health Authority: | Canada: Health Canada |
Probiotics Immunity Immune response |
Intestinal microflora Blood lipids Phagocytosis activity |