Cardiovascular Diseases, Diabetes Mellitus, Obesity
Conditions
Keywords
Dietary Intervention, Nutrigenomics, Diet, Carbohydrate-Restricted, Gene Expression, Gene Expression Profiling, Oligonucleotide Array Sequence Analysis, Biological Markers, Food, Obesity, Blood, Subcutaneous Fat, Abdominal
Brief summary
The purpose of this pilot study is to optimize conditions for a planned human intervention study focusing on how diet predispose for, and influence, lifestyle disease development and its consequence in cardiovascular disease development.
Detailed description
Common for many of the risk factors of lifestyle diseases is that they are induced by improper diet. Recent research has shown that especially total amount and composition of the macro nutrients, protein, carbohydrate and fats, is important. A time course experiment has been performed where 5 subjects underwent a diet intervention for four weeks with a controlled, balanced macro nutrient energy content of every meal. The sampling time points were 0, 1, 2, 7, 14 and 28 days. The goals were to determine optimal length of intervention with stabilization of gene expression to occur and compare blood and subcutaneous abdominal fat tissue as source of biological material for RNA for DNA microarray analysis. Microarray analysis were performed on 3 of the 5 subjects.
Interventions
Isocaloric dietary changes from typically Western diet to balanced macronutrient composition.
Sponsors
Study design
Eligibility
Inclusion criteria
* healthy males, BMI\>30
Exclusion criteria
* known chronic disease or in need of any medical treatment
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Changes in microarray gene expression profiles in blood and subcutaneous abdominal fat tissue from healthy obese men, as a consequence of changes in dietary macro nutrient composition. | Four weeks |
Secondary
| Measure | Time frame |
|---|---|
| Time to stabilization of gene expression changes due to dietary intervention. | 0, 1, 2, 7, 14 and 28 days |
Countries
Norway