Taylla S. Costa, J. M. Ferreira, Marina Couto, R. Nascimento
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Hereditary hemochromatosis associated with the development of liver cirrhosis
Hereditary hemochromatosis (HH) is an autosomal recessive disease, most often associated with mutations in the HFE gene, which result in continuous absorption of iron, causing its overload. Liver tissue is the main site of iron deposition; thus, high levels of iron, when interacting with oxygen, induce the formation of free radicals that will act on proteins, lipids, and deoxyribonucleic acid (DNA), which may trigger deleterious effects at cellular and tissue levels. In order to elucidate the development and progression of liver cirrhosis due to iron overload, the purpose of this study is to describe the pathophysiology of the hepatic system in patients diagnosed with HH. For this purpose, searches for scientific articles were carried out in the main academic databases. We found that patients diagnosed with HH are more likely to develop liver cirrhosis, since chronic iron deposition in liver tissue induces injury and consequent tissue regeneration, progressing to collagen fibers synthesis surrounding the hepatocytes, leading to loss of liver function and development of cirrhosis. Therefore, it is necessary to carry out tests such as iron, ferritin and transferrin measurements, to evaluate body’s iron stores, aiming at an early diagnosis of iron overload, thus avoiding deleterious damage at cellular and tissue levels.
期刊介绍:
The Jornal Brasileiro de Patologia e Medicina Laboratorial (Brazilian Journal of Pathology and Laboratory Medicine), a continuation of Jornal Brasileiro de Patologia (Brazilian Journal of Pathology), and published quarterly (March, June, September and December) is directed towards the publication of scientific articles that contribute to the development of the area of Laboratory Medicine (Clinical Pathology, Pathology, Cytopathology). It accepts the following categories of articles: original articles, review articles, case reports, short communications, updating articles, letters to editors and reviews.