Journals / Güncel Pediatri / 2012 / Cilt: 10 - Sayı: 2

mir ve Demir Metabolizması Iron and Iron Metabolism

Demir ve Demir Metabolizması

Pages
65–69
Publication Date
2022-10-18
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Systemic regulation of iron and the uptake of iron by duodenal enterocytes depend on apical DMPT1 level of which also is regulated by IRP/IRE system. (Journal of Current Pediat rics 2012; 10: 65-9)

📌 3 Key Takeaways

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Objective & Hypothesis:Iron is an essential element for almost all living organisms except some bacteria.
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Key Findings & Data:The syntesis of hepsidin increases with rising serum iron and decreases at anemic or hypoxic conditions.
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Conclusion & Impact:Systemic regulation of iron and the uptake of iron by duodenal enterocytes depend on apical DMPT1 level of which also is regulated by IRP/IRE system. (Journal of Current Pediat rics 2012; 10: 65-9)
🔬Design:Research Article
📍Scope:2012 Verileri
⚙️Variables:Domain Parameters

Abstract

Iron is an essential element for almost all living organisms except some bacteria. A great number of new articles related to the iron metabolism have been published in recent years explaining new findings. Hepsidine, a peptide hormon, that is recently found, regulates iron methabolism by effecting iron absorbsion from gut, secreting iron from hepatic store and flows iron from macrophages. Hepsidin blockes to effluxe iron from cells by bounding to ferroportin and by inducing ferroportin destruction. The syntesis of hepsidin increases with rising serum iron and decreases at anemic or hypoxic conditions. In addition to that, the iron absorbtion from gut is regulated by IRP/IRE system. Systemic regulation of iron and the uptake of iron by duodenal enterocytes depend on apical DMPT1 level of which also is regulated by IRP/IRE system. (Journal of Current Pediat rics 2012; 10: 65-9)

Özet

Demir, birkaç bakteri türü hariç tüm canlı organizmalar için esansiyel bir elementtir. Demir metabolizması ile ilgili son yıllarda çok sayıda yeni yayınlar çıkmış olup, birçok yeni bulgu açıklanmıştır. Son yıllarda bulunan peptid yapıda bir hormon olan hepsidin, demir metabolizmasını barsaklardaki demir emilimini, makrofajlardan demir çıkışını ve hepatik depolardan demir salınımını etkileyerek düzenler. Hepsidin hücrelerden demir çıkışını, ferroportine bağlanarak ve onun yıkımını uyararak engeller. Hepsidin sentezi, serum demirinin yükselişi ile artar, anemi ve hipoksi durumlarında azalır. Ayrıca intestinal demir emilimi demir regülatuar protein/demir responsive element (IRP/IRE) sistemi tarafından düzenlenmektedir. Demirin sistemik düzenlenmesi, duodenal enterositler tarafından ne kadar demir alınacağı, apikal divalent metal transporter 1 (DMT1) düzeyine bağlıdır ve bu düzey IRP/IRE sistemi tarafından ayarlanır. (Güncel Pediatri 2012; 10: 65-9)

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Cite This Article

BAYTAN, B., GÜNEŞ, A. M., EVİM, M. S. (2022). mir ve Demir Metabolizması Iron and Iron Metabolism. Güncel Pediatri, Cilt: 10 - Sayı: 2, 65–69. https://ajindex.com/articles/528013

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References (13)

  1. Uysal Z. Demir Metabolizmasında, Demir Eksikliğinde ve Demir Fazlalığında Yenilikler. Ankara Ün Tıp Fak Mecmuası 1999;52:157-64. Uysal Z. Hepsidin ve demir metabolizması. 6. Hematoloji İlk Basamak Kursu Eğitim Kitabı, Ulusal Hematoloji Kongresi 2007: Ankara: 14-20. Saltman P. Oxidative stress: a radical view. Semin hematol 1989;26:249-56.
  2. Gümrük F, Altay Ç. Demir metabolizması ve demir eksikliği anemisi. Katkı Pediatri Dergisi 1995;16:265-87. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. Conrad ME, Umbreit JN. A concise review: İron absorption-the mucin-mobilferrin-integrin pathway. A competitive pathway for metal absorption. Am J Hematol 1993;42:67-73.
  3. Fleming RE, Bacon BR. Orchestration of İron Homeostasis. N Engl J Med 2005;352:1741-4.
  4. Ganz T, Nemeth E. Regulation of iron acquisition and iron distribution in mammals. Biochim Biophys Acta 2006;1763:690-9.
  5. Mackenzie B, Garrick MD. Iron Imports. II. Iron uptake at the apical membrane in the intestine. Am J Physiol Gastrointest Liver Physiol 2005;289:981-6.
  6. Ma Y, Yeh M, Yeh KY, Glass J. Iron Imports. V. Transport of iron through the intestinal epithelium. Am J Physiol Gastrointest Liver Physiol 2006;290:417-22.
  7. West AR, Oates PS. Mechanisms of heme iron absorption: current questions and controversies. World J Gastroenterol 2008;14:4101-10.
  8. Donovan A, Brownlie A, Zhou Y, Shepard J, Pratt SJ, Moynihan J, et al. Positional cloning of zebrafish ferroportin 1 identifies a conserved vertebrate iron exporter. Nature 2000;403:776-81.
  9. Nemeth E, Preza GC, Jung CL, Kaplan J, Waring AJ, Ganz T. The N-terminus of hepcidin is essential for its interaction with ferroportin: structure-function study. Blood 2006;107:328-33.
  10. De Domenico I, Ward DM, Langelier C, Vaughn MB, Nemeth E, Sundquist WI, et al. The molecular mechanism of hepcidin- mediated ferroportin down-regulation. Mol Biol Cell 2007;18:2569-78.
  11. Gambling L, Andersen HS, McArdle HJ. Iron and copper, and their interactions during development. Biochem Soc Trans 2008;36:1258-61.
  12. Deugnier Y, Brissot P, Loréal O. Iron and the liver: update 2008. J Hepatol 2008;48:113-23. Semercioğlu A.E. Çocukluk çağında demir metabolizması ve hepsidin. Uzmanlık tezi. Çukurova Ün. Çocuk Sağlığı ve Hastalıkları AD. 2010 Ganz T. Hepcidin in iron metabolism. Curr Opin Hematol 2004;11:251-4. Hugman A. Hepcidin: an important new regulator of iron homeostasis. Clin Lab Haematol 2006;28:75-83.
  13. Nemeth E, Ganz T. Regulation of iron metabolism by hepci