Podzolkov V I, Pokrovskaya A E, Vargina T S, Oganesyan K A
I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), Moscow, Russia.
Ter Arkh. 2019 May 16;91(4):118-121. doi: 10.26442/00403660.2019.04.000170.
Hereditary hemochromatosis (HH) is a disease with an autosomal recessive hereditary type, stipulated by the genetic defect that leads to a high intestinal absorption of iron and primary accumulation in the parenchymal cells of the liver and other organs. This is the most common hereditary disease among White population, the frequency is about 1 case per 250 people. The prevalence of HH is inhomogeneous, people from countries in Northern Europe, especially Scandinavian, are more susceptible to this disease. Mutations of the HFE gene account for approximately 90% of HH cases. In HH excess iron deposits mainly in the cytoplasm of parenchymal cells of various organs and tissues: in the liver, pancreas, endocrine glands, skin and joints. The clinical picture of HH is characterized by the classical triad development: cirrhosis of the liver, diabetes mellitus (DM) and hyperpigmentation. HH may also manifest itself as various endocrinopathies (hypofunction of hypophysis, adrenal glands, thyroid gland, arthropathy, cardiomyopathy). Diagnostics of HH is based on the determination of the iron metabolism values: serum iron, transferrin saturation, the amount of ferritin, the genetic tests, liver biopsy data are used to confirm the diagnosis. Despite the fact that HH is a well-studied disease, in some cases it is complicated to diagnose it. Developed posthemorrhagic anemia in a patient is one of such reasons when the iron metabolism test is not informative.
遗传性血色素沉着症(HH)是一种常染色体隐性遗传性疾病,由导致肠道铁吸收增加并在肝脏和其他器官实质细胞中原发性蓄积的基因缺陷所规定。这是白种人群中最常见的遗传性疾病,发病率约为每250人中有1例。HH的患病率并不均匀,北欧国家的人,尤其是斯堪的纳维亚人,更容易患这种疾病。HFE基因突变约占HH病例的90%。在HH中,过量的铁主要沉积在各种器官和组织实质细胞的细胞质中:肝脏、胰腺、内分泌腺、皮肤和关节。HH的临床表现以典型的三联征为特征:肝硬化、糖尿病(DM)和色素沉着。HH也可能表现为各种内分泌病(垂体、肾上腺、甲状腺功能减退、关节病、心肌病)。HH的诊断基于铁代谢值的测定:血清铁、转铁蛋白饱和度、铁蛋白量,基因检测、肝活检数据用于确诊。尽管HH是一种研究充分的疾病,但在某些情况下诊断仍很复杂。患者出现出血后贫血是铁代谢检测无信息价值的此类原因之一。