Cardiovascular Risk Factor
Conditions
Keywords
Healthy subjects
Brief summary
Fats and oils are made up of \>90% triacylglycerol fat molecules which consist of a glycerol backbone to which 3 esterified fatty acids are attached. The positions of fatty acid attachment are referred to by stereospecific numbers, sn -1, -2 and -3. There is existing evidence to show that vegetable oils having unsaturated fatty acids in the sn-2 position with predominantly palmitic acid (16:0) or stearic acid (18:0) in the sn-1 and sn-3 positions of fat molecules do not raise serum cholesterol levels. These observations have come to be known as or explained by the sn-2 hypothesis. New evidence have also emerged to show that saturated fatty acids (16:0, 18:0) in the sn-1 and -3 positions reduces fat deposition in a rat model. In this proposed study, the effects on the outcome measures investigated of three test fats \[namely palm olein IV64 (POP), virgin olive oil (OOO) and cocoa butter (POS)\], with oleic acid primarily at the sn-2 position but differing amounts of palmitic, stearic and oleic acids at the sn-1/sn-3 positions of the triglyceride molecule, are investigated
Detailed description
To investigate the effects of different dietary fats with primarily oleic acid in the sn-2 position on the cardiovascular risk profile in healthy Malaysian volunteers
Interventions
Each subject received a palm olein-based run in diet for 2 weeks, followed by random assignment test fat Palm Olein IV64 which was incorporated into daily snacks (\ 50g of test fats, brownies (\ 15g test fat each) for breakfast and 4 pieces cookies (\ 5g test fat each) with low fat palm olein based background diet daily.
Each subject received a palm olein-based run in diet for 2 weeks, followed by random assignment test fat cocoa butter which was incorporated into daily snacks (\ 50g of test fats, brownies (\ 15g test fat each) for breakfast and 4 pieces cookies (\ 5g test fat each) with low fat palm olein based background diet daily.
Each subject received a palm olein-based run in diet for 2 weeks, followed by random assignment test fat virgin olive oil which incorporated into daily snacks (\ 50g of test fats, brownies (\ 15g test fat each) for breakfast and 4 pieces cookies (\ 5g test fat each) with low fat palm olein based background diet daily.
Sponsors
Study design
Eligibility
Inclusion criteria
* Healthy adult male or female, aged 20-50 years * BMI 18.5- 24.9 kg/m2 as per WHO Classification (1998)
Exclusion criteria
* Hyperlipidemia (TC\>6.2 mmol/L, TAG \>2.0 mmol/L) * History of chronic disease- type 2 DM, heart disease, cancer * Habitual smokers (\>2 sticks a day) * Hypertensives: \>140/90 mmHg * On medication/nutraceuticals to reduce blood lipids, blood pressure * Pregnant or lactating women * Planned trip abroad/overseas during period of study
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Changes of Ratio of total cholesterol to HDL cholesterol (TC:HDL) | week 0 (baseline) and week 4 | analyzed enzymatically by Siemens Advia 2400 Chemistry Analyzer |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| changes of serum HDL cholesterol | week 0 (baseline) and week 4 | analyzed enzymatically by Siemens Advia 2400 Chemistry Analyzer |
| changes of serum LDL cholesterol | week 0 (baseline) and week 4 | analyzed enzymatically by Siemens Advia 2400 Chemistry Analyzer |
| changes of serum Triacylglycerol (TAG) | week 0 (baseline) and week 4 | analyzed enzymatically by Siemens Advia 2400 Chemistry Analyzer |
| changes of serum non-esterified fatty acids (NEFA) | week 0 (baseline) and week 4 | analysed by ELISA kits |
| changes of serum LDL sub-fractions | week 0 (baseline) and week 4 | analysed with LIPOPRINT System |
| changes of Blood pressure | week 0 (baseline) and week 4 | measured by blood pressure meter |
| Changes of body mass index (BMI) | week 0 (baseline) and week 4 | measured by Tanita Segmental Body Fat Analysis |
| changes of Waist circumference | week 0 (baseline) and week 4 | — |
| changes of serum Lp(a) | week 0 (baseline) and week 4 | analyzed enzymatically by Siemens Advia 2400 Chemistry Analyzer |