The nutritional role of Vitamin K goes beyond coagulation of blood: An interview with Professor Sarah Booth of Tufts University
26 September 2016
31 May 2013
According to a new study from UK low blood vitamin D concentrations seem to be linked to the development of respiratory disorders such as asthma, upper and lower respiratory tract infections, pneumonia and tuberculosis.
The observational study assessed serum 25-hydroxyvitamin D concentrations and documented cases of
long-term respiratory tract disorders of 2,070 adults aged 65 and older (1). The study results showed that participants who were severely vitamin D deficient (below 14 ng/ml) were twice as likely to suffer from a respiratory disease as those with higher vitamin D levels (above 25 ng/ml). Participants with moderate deficiency (14–20 ng/ml) had 1.75 times more likely to have a respiratory disease.
The researcher concluded that ensuring adequate vitamin D levels is of public health importance for older populations living in northern latitudes and may be an effective way to prevent concurrent respiratory infections and related complications in older people. Further studies are required to investigate whether vitamin D supplementation reduces the incidence and exacerbations of respiratory disease, they said. Vitamin D has a role in immunomodulation, which is important in respiratory health. Adequate vitamin D concentrations may be important, for example, in ameliorating chronic obstructive pulmonary disease (COPD), in which there is an abnormal inflammatory reaction to inhaled particles and a weak immune response, but recent studies have reached conflicting findings (2, 3).
26 September 2016
24 July 2015
Mild Cognitive Impairment (MCI) is a condition in elderly people associated with a higher risk of developing dementia. At present, there are no effective pharmacological treatments for Alzheimer’s Disease (AD), so scientists are now concentrating their efforts on finding effective interventions in the pre-clinical stages of dementia, such as MCI.
21 April 2010
Increased intakes of vitamin K from dietary and supplementary sources may reduce the risk of cancer of the lymphatic system, according to a new US study.