The DRG 25-OH Vitamin D (total) ELISA is an enzyme immunoassay for the quantitative in vitro diagnostic measurement of total 25-OH Vitamin D (Vitamin D2 / D3) in serum or plasma.
25-OH-Vitamin D (total) assay characteristics:
Assay Principle: Competitive ELISA
Dynamic range: 3.22 – 120 ng/mL
Total assay time: less than 2 h (60/30/15 minutes)
Sample volume: 50 µL Serum or Plasma (EDTA, lithium heparin or citrate plasma)
Mean Intra Assay precision: 3.7 %
Mean Inter Assay precision: 7.13 %
Specificity: 99.5% of 25-OH-Vitamin D3 and 97.4% of 25-OH-Vitamin D2
Clinical Benefit:
Vitamin D is a pro-hormone that has long been known for its important role in regulating bone mineralization. Moreover, in recent years, Vitamin D has become an assay of general health status, and there have been multiple publications linking Vitamin D deficiency to several disease states, such as cancer, cardiovascular disease, diabetes and autoimmune diseases.
Advantages of the DRG ELISA (EIA-5396):
Easy and straight forward assay procedure without any sample pre-treatment
Measurement of 25-OH Vitamin D2 and D3
First results in less than 2 hours
Standards are calibrated against reference material DEQAS No. 548
Negligible cross-reaction to 3-epi-25-OH Vitamin D
Reagents are ready-to-use, 2 controls included in the kit
Excellent correlation to competition (e.g. Diasorin LIAISON)
Consequences of Vitamin D deficiency:
Bone Metabolism
Osteoporosis
Osteomalacia
Rickets
Cancer
Possibly associated with different cancers (breast, colon, prostate, ovarian)
Cardiac Diseases
Stroke
High blood pressure
Increasing risk for all-cause and cardiovascular mortality