The trial included 70 overweight or obese African Americans between the ages of 13 to 45 years with 25 hydroxyvitamin D
levels of 20 ng/mL or lower.
1-4) For example, almost 50% of New Zealand children and adults were deemed to be vitamin D-insufficient in national surveys, based on low serum 25 hydroxyvitamin D concentrations (<50 nmol/L), the best indicator of vitamin D status.
Do low circulating 25 hydroxyvitamin D concentrations pose a health risk to Australians and New Zealanders?
What level of 25 hydroxyvitamin D is required in the population?
In the winter months, when 25 hydroxyvitamin D is lowest, long periods of sun exposure would be required for adequate vitamin D synthesis.
The agreement provides for Nichols Institute Diagnostics to be the exclusive distributor in the United States, Germany, France and Switzerland for the 25 Hydroxyvitamin D and 1,25 Dihydroxyvitamin D test kits.
The 25 Hydroxyvitamin D and 1,25 Dihydroxyvitamin D test kits are important additions to the Nichols Institute Diagnostics product line.
The 25 Hydroxyvitamin D radioimmunoassay has been designed to optimize precision and sensitivity.
25 hydroxyvitamin D
levels of lower than 50 nmol/L were found in 69% of the children tested.
Patients were divided into 2 groups according to their preoperative serum 25 hydroxyvitamin D