The effects of a probiotic and vitamin D intervention in healthy adults on biochemical markers and metabolomic profiles

ISRCTN ISRCTN00310528
DOI https://doi.org/10.1186/ISRCTN00310528
Secondary identifying numbers N/A
Submission date
14/07/2010
Registration date
21/07/2010
Last edited
21/07/2010
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Nutritional, Metabolic, Endocrine
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Not provided at time of registration

Contact information

Dr Lorraine Brennan
Scientific

UCD Conway Institute
Dublin
D4
Ireland

Study information

Study designDouble-blind randomised placebo-controlled trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Other
Study typeTreatment
Participant information sheet Not available in web format, please use the contact details below to request a patient information sheet
Scientific titleThe effects of a probiotic and vitamin D intervention in healthy adults on biochemical markers and metabolomic profiles: a double-blind, randomised placebo-controlled trial carried out in two centres
Study objectivesThe aim of this study is to investigate if a 4 week supplementation intervention with vitamin D or a probiotic alters biomarkers of the metabolic syndrome and the metabolomic profiles.
Ethics approval(s)UCD Research Ethics Committee approved on the 13th October 2006 (ref: HREC-39-06-Gibney)
Health condition(s) or problem(s) studiedMetabolic syndrome biomarkers
InterventionThe four treatment groups were defined as follows:
1. Treatment group 1: received daily vitamin D3 (15 µg) and probiotic (Lactobacillus salivarius 109 cfu/5 g sachets suspended in maltodextrin)
2. Treatment group 2: received daily vitamin D3 and placebo probiotic (maltodextrin)
3. Treatment group 3: received daily vitamin D3 placebo and probiotic
4. Treatment group 4: received daily vitamin D3 placebo and probiotic placebo

The vitamin D3 and matching placebo were food grade and consumed in capsule form and were identical in appearance and taste, while the probiotic and probiotic/placebo (in powder form) was mixed with milk for consumption.

Treatment duration: 4 weeks.
Intervention typeSupplement
Primary outcome measureMeasurement of the following markers at the end of the 4 week intervention:
1. Leptin
2. Resistin
3. Adiponectin
4. Interleukin-6 (IL-6)
5. C-reactive protein (CRP)
6. Tumour necrosis factor-alpha (TNFa)
7. Insulin
8. C-peptide
9. 25-hydroxy vitamin D (25(OH)D)
10. Triglyceride (TAG)
11. Non-esterfied fatty acids (NEFA)
12. Glucose
Secondary outcome measuresNo secondary outcome measures
Overall study start date01/11/2006
Completion date01/09/2009

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
SexBoth
Target number of participants160
Key inclusion criteria1. Healthy male and females aged 18 - 75 years
2. Free living
3. Fluent in English
Key exclusion criteria1. Body mass index less than 18.5 or greater than 30.0 (kg/m^2)
2. Iron deficiency anaemia (haemoglobin less than 12 g/dl for males, less than 11 g/dl for females)
3. Any chronic or infectious disease and any prescribed medication for such (contraceptive pills were permitted)
4. Pregnant or lactating females
5. Persons using hormone replacement therapy
Date of first enrolment01/11/2006
Date of final enrolment01/09/2009

Locations

Countries of recruitment

  • Ireland

Study participating centre

UCD Conway Institute
Dublin
D4
Ireland

Sponsor information

University College Dublin (UCD) (Ireland)
University/education

Belfield
Dublin
D4
Ireland

Website http://www.ucd.ie/
ROR logo "ROR" https://ror.org/05m7pjf47

Funders

Funder type

Government

Department of Agriculture, Food and Fisheries (Ireland) - research grant under the Food Institutional Research Measure (ref: 06RDD417)

No information available

Results and Publications

Intention to publish date
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
Publication and dissemination planNot provided at time of registration
IPD sharing plan