**5.2 25OHD antibody**

The term "25OHD antibody" likely refers to an antibody that specifically recognizes and binds to 25-hydroxyvitamin D (25OHD), which is the major circulating form of vitamin D in the body [93]. Antibodies are proteins produced by the immune system that can recognize and bind to specific molecules, known as antigens. In the context of sensing or measuring vitamin D levels, 25OHD antibodies can be utilized in various laboratory techniques, such as immunoassays, to quantify the concentration of 25OHD in biological samples like blood or serum [94]. These assays work by utilizing the binding specificity of the antibody to capture and detect the 25OHD present in the sample.

By measuring the concentration of 25OHD using these antibody-based assays, healthcare professionals can assess a person's vitamin D status. Vitamin D plays a crucial role in various physiological processes, including bone health, immune function, and calcium regulation. Low levels of vitamin D can lead to deficiencies and may be associated with certain health conditions. 25OHD antibodies can be used in various vitamin D sensing techniques to measure the concentration of 25-hydroxyvitamin D (25OHD) in biological samples. Here are a few commonly employed methods:


These are just a few examples of how 25OHD antibodies can be used in vitamin D sensing techniques. The specific assay method chosen depends on factors such as sensitivity, specificity, ease of use, and available laboratory resources. Different commercial kits are available that utilize these techniques to measure 25OHD levels in clinical settings.
