News
Vitamin K may improve memory performance in the elderly
16 October 2013
According to a new Canadian study, increased vitamin K1 blood concentrations seem to be linked to better verbal episodic memory performances in seniors.
26 July 2012
A recent Australian study has delivered the first human data showing that early postnatal fish oil supplementation increases n-3 polyunsaturated fatty acid (PUFA) levels in infants and is associated with lowered allergenic responses to allergens such as dust mites.
The results of the double-blind, randomized controlled trial using 120 infants add to the already existing evidence concerning the immunomodulatory properties of the omega-3 fatty acids DHA (docosahexaenoic acid) and EPA (eicosapentaenoic acid).Previous findings have shown that maternal fish oil supplementation during pregnancy is associated with altered infant immune responses and a reduced risk of infant sensitization and eczema. In this study, 420 infants of high atopic risk were split into groups receiving either fish oil supplements containing 280 mg DHA and 110 mg EPA or control oil supplements daily from birth to 6 months. 120 of the study participants then had their blood tested at 6 months of age. Fatty acid levels, induced cytokine responses, T cell subsets and monocyte HLA-DR expression were also assessed at 6 months of age. Infant allergies were assessed first at 6 months and again at 12 months of age.
It was found that in comparison to the control group, DHA and EPA blood levels were significantly higher in the fish oil group and levels of arachidonic acid (AA), one type of omega-6 fatty acid, were lower. In addition, the infants receiving fish oil supplements had significantly lower allergic responses to dust mites and milk protein, as measured by the levels of interleukin-13 (IL-13) and interferon-gamma detected in the blood. IL-13 is secreted by Th2 immune cells and promotes the synthesis of immunoglobulin E (IgE) antibodies, involved in almost any allergic process. The outcome of the fish oil group was a decrease in allergen-specific (HDM) IL-13 responses, associated with cutaneous symptoms of eczema at 6 months of age and diagnosed eczema at 12 months of age. The researchers point out that their findings may improve the future quality of life for the rising number of people affected by allergic disorders worldwide and help to cut healthcare costs.
16 October 2013
According to a new Canadian study, increased vitamin K1 blood concentrations seem to be linked to better verbal episodic memory performances in seniors.
1 June 2012
The globally rising need for and use of medicines continues unabated. In the context of an ever widening range of medicinal therapies and a constantly growing number of pharmaceutical substances, interactions between bioactive substances are very significant. In the past, interactions between drugs and micronutrients received little attention in pharmaceutical and medical practice, but now medication-induced disturbances of micronutrient status are leading to a number of undesirable pharmacological effects. More-over, concomitant food intake can reinforce or diminish the bioavailability and effect of a pharmaceutical substance. In some cases, synergistic effects can arise from interactions between pharmaceuticals and micronutrients: micronutrients may complement medicinal treatment and enhance its effectiveness or reduce potential side-effects.
13 February 2012
New US research suggests that consuming sufficient amounts of vitamin D may protect against incident strokes and cognitive impairment.