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  2. Human iron metabolism - Wikipedia

    en.wikipedia.org/wiki/Human_iron_metabolism

    Of the body's total iron content, about 400 mg is devoted to cellular proteins that use iron for important cellular processes like storing oxygen (myoglobin) or performing energy-producing redox reactions (cytochromes). A relatively small amount (3–4 mg) circulates through the plasma, bound to transferrin. [9]

  3. Biological functions of nitric oxide - Wikipedia

    en.wikipedia.org/wiki/Biological_functions_of...

    Nitric oxide is a cell signaling molecule produced by many cells of the body, and growing evidence suggests that the biological actions of the endocannabinoid system (ECS) may, in part, be mediated through its ability to regulate the production and/or release of nitric oxide. [82]

  4. Iron oxide - Wikipedia

    en.wikipedia.org/wiki/Iron_oxide

    An iron oxide is a chemical compound composed of iron and oxygen. ... In blast furnaces and related factories, iron oxides are converted to the metal.

  5. Biometal (biology) - Wikipedia

    en.wikipedia.org/wiki/Biometal_(biology)

    Metal ions and metallic compounds are often used in medical treatments and diagnoses. [18] Compounds containing metal ions can be used as medicine, such as lithium compounds and auranofin. [19] [20] Metal compounds and ions can also produce harmful effects on the body due to the toxicity of several types of metals. [18]

  6. Evolution of metal ions in biological systems - Wikipedia

    en.wikipedia.org/wiki/Evolution_of_Metal_Ions_in...

    Tungsten is one of the oldest metal ions to be incorporated in biological systems, preceding the Great Oxygenation Event. Before the abundance of oxygen in Earth's atmosphere, oceans teemed with sulfur and tungsten, while molybdenum, a metal that is highly similar chemically, was inaccessible in solid form. The abundance of tungsten and lack of ...

  7. Copper in biology - Wikipedia

    en.wikipedia.org/wiki/Copper_in_biology

    More research is needed to understand metal homeostasis disturbances in Alzheimer's disease patients and how to address these disturbances therapeutically. Since this experiment used Cu-(II)-orotate-dihydrate, it does not relate to the effects of cupric oxide in supplements. [96]

  8. Nitric oxide - Wikipedia

    en.wikipedia.org/wiki/Nitric_oxide

    Nitric oxide (nitrogen oxide or nitrogen monoxide [1]) is a colorless gas with the formula NO. It is one of the principal oxides of nitrogen . Nitric oxide is a free radical : it has an unpaired electron , which is sometimes denoted by a dot in its chemical formula ( • N=O or • NO).

  9. Metalloprotein - Wikipedia

    en.wikipedia.org/wiki/Metalloprotein

    The abundance of metal binding proteins may be inherent to the amino acids that proteins use, as even artificial proteins without evolutionary history will readily bind metals. [8] Most metals in the human body are bound to proteins. For instance, the relatively high concentration of iron in the human body is mostly due to the iron in hemoglobin.