Laila. Age: 20.
Iron deficiencyor sideropaeniais 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 cytochromesand facilitating oxygen enzyme reactions in various tissues. Too little iron can interfere with these vital functions and lead to morbidity and death.
Ellie. Age: 31.
NCBI Bookshelf. Iron functions as a component of a number of proteins, including enzymes and hemoglobin, the latter being important for the transport of oxygen to tissues throughout the body for metabolism. Almost two-thirds of iron in the body is found in hemoglobin present in circulating erythrocytes. A readily mobilizable iron store contains another 25 percent.
Anahi. Age: 21.
Everything you need to know about iron
It is a key element in the metabolism of all living organisms. Iron is an essential component of hundreds of proteins and enzymes supporting essential biological functions, such as oxygen transport, energy production, DNA synthesisand cell growth and replication. Heme is an iron-containing compound found in a number of biologically important molecules Figure 1. Some, but not all, iron-dependent proteins are heme-containing proteins also called hemoproteins.
This is a corrected version of the article that appeared in print. The prevalence of iron deficiency anemia is 2 percent in adult men, 9 to 12 percent in non-Hispanic white women, and nearly 20 percent in black and Mexican-American women. Nine percent of patients older than 65 years with iron deficiency anemia have a gastrointestinal cancer when evaluated.