2016
DOI: 10.1515/labmed-2015-0106
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Hemoglobin variants – pathomechanism, symptoms and diagnosis

Abstract: The diagnosis of hemoglobin variants that are not any of the better-known forms of thalassemia, sickle cell, HbC, HbD, or HbE anomalies is often challenging and requires detailed knowledge of the difference in symptoms and analysis. Experience in laboratory medicine plays an important role as the range of variants is extensive and lack of expertise can result in a wrong diagnosis. Hemoglobin variants with low oxygen affinity may present cyanosis and low oxygen saturation levels, whereas variants with increased… Show more

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Cited by 2 publications
(4 citation statements)
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“…While in some cases including ours, the diagnosis is made during childhood. 10 The distinguishing manifestations of hemoglobin Köln include congenital nonspherocytic hemolytic anemia, splenomegaly, pigmented (bilirubin) gallstones, and in severe cases, pigmenturia. As supported by our case findings, the affected individuals typically have low haptoglobin, high lactate dehydrogenase, and negative direct antiglobulin (Coombs) test findings since there is no immunological component.…”
Section: Discussionmentioning
confidence: 99%
“…While in some cases including ours, the diagnosis is made during childhood. 10 The distinguishing manifestations of hemoglobin Köln include congenital nonspherocytic hemolytic anemia, splenomegaly, pigmented (bilirubin) gallstones, and in severe cases, pigmenturia. As supported by our case findings, the affected individuals typically have low haptoglobin, high lactate dehydrogenase, and negative direct antiglobulin (Coombs) test findings since there is no immunological component.…”
Section: Discussionmentioning
confidence: 99%
“…Тельца Гейнца взаимодействуют со структурами мембраны эритроцитов, вызывая их гемолиз [4]. Сверхнестабильные варианты характеризуются разрушением цепей глобина в клетках-предшественниках эритроцитов [5,6]. Каждый НГ обладает определенным диапазоном стабильности, некоторые из них достаточно нестабильны, чтобы вызвать гемолитическую анемию в гетерозиготном состоянии [7].…”
unclassified
“…Каждый НГ обладает определенным диапазоном стабильности, некоторые из них достаточно нестабильны, чтобы вызвать гемолитическую анемию в гетерозиготном состоянии [7]. НГ обычно наследуются как аутосомно-доминантные нарушения [8,9] и часто являются результатом de novo мутаций [8]. Клиническая картина пациентов с такими вариантами и обстоятельства, при которых…”
unclassified
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