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  2. Human iron metabolism - Wikipedia

    en.wikipedia.org/wiki/Human_iron_metabolism

    Export occurs through ferroportin, often aided by hephaestin (Hp) and/or ceruloplasmin (Cp), and repressed by hepcidin. Human iron metabolism is the set of chemical reactions that maintain human homeostasis of iron at the systemic and cellular level. Iron is both necessary to the body and potentially toxic.

  3. Iron deficiency - Wikipedia

    en.wikipedia.org/wiki/Iron_deficiency

    Iron deficiency, or sideropenia, is the state in which a body lacks enough iron to supply its needs. Iron is present in all cells in the human body and has several vital functions, such as carrying oxygen to the tissues from the lungs as a key component of the hemoglobin protein, acting as a transport medium for electrons within the cells in the form of cytochromes, and facilitating oxygen ...

  4. Iron lung - Wikipedia

    en.wikipedia.org/wiki/Iron_lung

    D015919. [edit on Wikidata] An iron lung is a type of negative pressure ventilator (NPV), a mechanical respirator which encloses most of a person's body and varies the air pressure in the enclosed space to stimulate breathing. [1][2][3][4] It assists breathing when muscle control is lost, or the work of breathing exceeds the person's ability. [1]

  5. Ferritin - Wikipedia

    en.wikipedia.org/wiki/Ferritin

    Ferritin is a universal intracellular protein that stores iron and releases it in a controlled fashion. The protein is produced by almost all living organisms, including archaea, bacteria, algae, higher plants, and animals. It is the primary intracellular iron-storage protein in both prokaryotes and eukaryotes, keeping iron in a soluble and non ...

  6. Iron in biology - Wikipedia

    en.wikipedia.org/wiki/Iron_in_biology

    Iron in biology. Iron in hemoglobin is the source of the red coloration of vertebrate blood. Iron is an important biological element. [1][2][3] It is used in both the ubiquitous iron-sulfur proteins [1] and in vertebrates it is used in hemoglobin which is essential for blood and oxygen transport. [4]

  7. Human nutrition - Wikipedia

    en.wikipedia.org/wiki/Human_nutrition

    Human nutrition deals with the provision of essential nutrients in food that are necessary to support human life and good health. [1] Poor nutrition is a chronic problem often linked to poverty, food security , or a poor understanding of nutritional requirements. [ 2 ]

  8. Hemoglobin - Wikipedia

    en.wikipedia.org/wiki/Hemoglobin

    In such cases, the enzyme methemoglobin reductase will be able to eventually reactivate methemoglobin by reducing the iron center. In adult humans, the most common hemoglobin type is a tetramer (which contains four subunit proteins) called hemoglobin A, consisting of two α and two β subunits non-covalently bound, each made of 141 and 146 ...

  9. Ferrous - Wikipedia

    en.wikipedia.org/wiki/Ferrous

    Animals and humans can obtain the necessary iron from foods that contain it in assimilable form, such as meat. Other organisms must obtain their iron from the environment. However, iron tends to form highly insoluble iron(III) oxides/hydroxides in aerobic ( oxygenated ) environment, especially in calcareous soils .

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