2014
DOI: 10.5114/pg.2014.45102
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The role of hepcidin, ferroportin, HCP1, and DMT1 protein in iron absorption in the human digestive tract

Abstract: Iron is found in almost all foods, so dietary iron intake is related to energy intake. However, its availability for absorption is quite variable, and poor bioavailability is a major reason for the high prevalence of nutritional iron deficiency anaemia. Absorption occurs primarily in the proximal small intestine through mature enterocytes located at the tips of the duodenal villi. Two transporters: Hem Carrier Protein 1 (HCP1) and Divalent Metal Transporter 1 (DMT1) appear to mediate the entry of most if not a… Show more

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Cited by 48 publications
(50 citation statements)
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References 65 publications
(84 reference statements)
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“…Las proteínas SMAD por su parte, se activan ante una concentración suficiente de hierro, forman un complejo con un morfógeno y se transfieren al núcleo para activar la expresión de la Hpc (71,74,75).…”
Section: El Receptor 2 De Transferrina (Tfr2)unclassified
“…Las proteínas SMAD por su parte, se activan ante una concentración suficiente de hierro, forman un complejo con un morfógeno y se transfieren al núcleo para activar la expresión de la Hpc (71,74,75).…”
Section: El Receptor 2 De Transferrina (Tfr2)unclassified
“…Ферропортин присутствует во всех Fe-экспортирующих тканях, включая плаценту, макрофа-ги, гепатоциты, дуоденальный отдел кишечника. Ферро-портин экспрессируется также в нейронах, подтверждая тем самым значение гомеостаза Fe для этих клеток [47].…”
Section: краткая характеристика новых маркеров метаболизма железаunclassified
“…DМТ-1 состоит из 561 аминокислоты с 12 транс-мембранными доменами. Культуральные исследования показывают, что DМТ-1 транспортирует не только Fe 2 + , но и Zn 2 + , Mn 2 + , Co 2 + , Cd 2 + , Cu 2 + , Ni 2 + и Pb 2 + [47].…”
Section: краткая характеристика новых маркеров метаболизма железаunclassified
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“…Hereditary iron deficiency anemia that is refractory to oral iron therapy can be caused by mutations in TMPRSS6, which encodes a type II transmembrane serine protease produced mostly by hepatocytes. This enzyme (also known as matriptase-2) regulates the expression of the systemic iron regulatory hormone hepcidin [38], a 25-amino acid polypeptide which reduces iron absorption from the intestine by binding to the only known cellular iron exporter, ferroportin [39,40]. What is causal for anemia through a loss of function can expected to be beneficial in disorders associated with iron overload -hereditary hemochromatosis, β-thalassemia or erythropoietic porphyria.…”
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confidence: 99%