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1.
Eur J Clin Nutr ; 60(5): 633-42, 2006 May.
Article in English | MEDLINE | ID: mdl-16404415

ABSTRACT

OBJECTIVE: The aim of this study was to investigate whether a plant sterol mixture would reduce serum cholesterol when added to low fat dairy products in subjects with hypercholesterolaemia, and to examine the effects of the mixture on the serum plant sterol and fat-soluble vitamin levels. DESIGN: A parallel, double-blind study. SETTING: The study was performed in three different locations in Finland. SUBJECTS: In total, 164 mildly or moderately hypercholesterolaemic subjects participated in the study. METHODS: The subjects were randomly divided into two groups: a plant sterol group and a control group. The subjects consumed the products for 6 weeks after a 3-week run-in period. The targeted plant sterol intake was 2 g/day in the sterol group. RESULTS: During the treatment period, there was a 6.5% reduction in serum total cholesterol in the sterol group while no change was observed in the control group (P<0.0005). Serum low-density lipoprotein (LDL) cholesterol was reduced by 10.4% in the sterol group and by 0.6% in the control group (P<0.00005). There was no change during the trial in serum high-density lipoprotein (HDL) cholesterol or triacylglycerol concentrations. The HDL/LDL cholesterol ratio increased by 16.1% in the sterol group and by 4.3% in the control group (P=0.0001). Serum plant sterol levels increased significantly (P=0.0001) in the sterol group. None of the fat-soluble vitamin levels decreased significantly when changes in serum total cholesterol were taken into account. The hypocholesterolaemic effect of sterol administration was not influenced by apolipoprotein E phenotype. CONCLUSIONS: Yoghurt, low-fat hard cheese and low-fat fresh cheese enriched with a plant sterol mixture reduced serum cholesterol in hypercholesterolaemic subjects and no adverse effects were noted in the dietary control of hypercholesterolaemia.


Subject(s)
Anticholesteremic Agents/therapeutic use , Dairy Products , Hypercholesterolemia/diet therapy , Lipid Metabolism/drug effects , Phytosterols/therapeutic use , Vitamins/blood , Apolipoproteins E/genetics , Cholesterol/blood , Cholesterol, HDL/blood , Cholesterol, LDL/blood , Dairy Products/analysis , Double-Blind Method , Female , Food, Fortified , Humans , Hypercholesterolemia/blood , Male , Middle Aged , Phenotype , Phytosterols/adverse effects , Safety , Triglycerides/blood , Vitamin A/blood , Vitamin D/blood , Vitamin K/blood
2.
Eur J Clin Nutr ; 59(1): 123-8, 2005 Jan.
Article in English | MEDLINE | ID: mdl-15340369

ABSTRACT

OBJECTIVE: To assess the effects of maternal dietary and supplement intake of vitamins C and E on breast milk antioxidant composition (vitamin C, alpha-tocopherol and beta-carotene) and their protective potential against the development of atopy in the infant. DESIGN, SUBJECTS AND METHODS: Mothers with atopic disease were recruited at the end of gestation and maternal sensitization was assessed by skin-prick testing. The 4-day food records of the mothers and breast milk samples were collected at the infants' age of 1 month. Infants' atopy was defined by the presence of atopic dermatitis during the first year of life and a positive skin-prick test reaction at 12 months of age (n=34). RESULTS: Maternal intake of vitamin C in diet but not as supplement was shown to determine the concentration of vitamin C in breast milk. A higher concentration of vitamin C in breast milk was associated with a reduced risk of atopy in the infant (OR=0.30; 95% CI 0.09-0.94; P=0.038), whereas alpha-tocopherol had no consistent relationship with atopy. The group at risk of suboptimal vitamin C supply from breast milk was identified as infants whose mothers suffer from food hypersensitivity. CONCLUSION: A maternal diet rich in natural sources of vitamin C during breastfeeding could reduce the risk of atopy in high-risk infants.


Subject(s)
Antioxidants/administration & dosage , Ascorbic Acid/administration & dosage , Dermatitis, Atopic/epidemiology , Infant Nutritional Physiological Phenomena , Maternal Nutritional Physiological Phenomena , Milk, Human/immunology , Vitamin E/administration & dosage , Adult , Antioxidants/analysis , Ascorbic Acid/analysis , Ascorbic Acid/immunology , Breast Feeding , Confidence Intervals , Dermatitis, Atopic/immunology , Dietary Supplements , Female , Humans , Infant , Infant Food , Infant, Newborn , Milk, Human/chemistry , Odds Ratio , Pregnancy , Risk Factors , Skin Tests , Vitamin E/analysis , Vitamin E/immunology
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