Blog — Selenium

Bromine should be recognised as the 28th essential element for all species, from fruit flies to humans, in according to researchers at Vanderbilt University. Study results were published 2014 in Cell, and demonstrate that without bromine, collagen type IV molecules will not bond together properly to form the structural proteins of connective tissues, leading to disrupted tissue development.   This figure demonstrates bromines role as a co-factor in formation of collagen IV crosslinks:  Image Source: McCall S, Cummings C, Bhave G, Vanacore R, Page-MCaw A, Hudson B. Bromine is an essential trace element for assembly of collagen IV scaffolds in...

Urine, serum, plasma, whole blood, red blood cells, feces, hair, fingernails … the list goes on. How do you decide what biological sample(s) to use for element analysis? Can results be compared to scientific literature or do they have clinical significance? Is it possible for values to be elevated or low in one sample type and normal in another? Do test results indicate recent intake, body burden, acute toxicity, chronic toxicity, deficiency, or homeostatic regulation? These are just some of the questions facing a testing laboratory when they want to develop and validate essential and toxic element profiles that will...