Metabolomics refers to the large-scale detection, quantification, and analysis of small
molecules (metabolites) in biological media. Although metabolomics, alone or combined …

A better understanding of vitamin K's role in health and disease requires the assessment of
vitamin K nutritional status in population and clinical studies. This is primarily accomplished …

Traditional methods for assessing dietary exposure can be unreliable, with under reporting
one of the main problems. In an attempt to overcome such problems there is increasing …

A reversed-phase high-performance liquid chromatography (HPLC) method with
fluorometric detection was developed for the routine determination of pyridoxal 5 …

Vitamin B-12 is a water-soluble vitamin that plays important roles in intermediary
metabolism. Vitamin B-12 deficiency has many identifiable causes, including autoimmune …

It is unclear whether reduced plasma pyridoxal 5'-phosphate (PLP) during inflammation
reflects an altered distribution or increased requirement of vitamin B-6 that may impair …

Deficiencies of folate or of vitamin B12 are widespread and constitute a major global burden
of morbidity affecting all age groups. Detecting or confirming the presence of folate or …

Background: Vitamin B-12 is an important cofactor required for nucleotide and amino acid
metabolism. Vitamin B-12 deficiency causes anemia and neurologic abnormalities—a cause …

Vitamin B-6 is a water-soluble vitamin first discovered as a factor that cured dermatitis in rats.
There are 6 forms of vitamin B-6 found in mammals. The naturally occurring forms of the …

Marginal deficiency of vitamin B6 has recently been related to cardiovascular diseases.
Because of that there is an increasing interest in a suitable and reliable method for …