Molecular identification of affected alleles in the index family with rare mutation(s) and/or interaction(s) is an important prerequisite toward a proper genetic counseling. In Thailand, where more than 30% of the populations are heterozygotes for either α or β thalassemia mutation(s). More than 60 different thalassemia syndromes resulting from the interactions of these heterogeneous alleles ha...

The effect of -158 (C>T) Xmn I polymorphism on expression of G-globin gene has been the subject of considerable interest. This study aims to determine the frequency of the G Xmn I polymorphism in thalassemia patients in Denizli province of Turkey. We studied Xmn I polymorphism in the DNA samples of 27 with -thalassemia major, 210 -thalassemia minor patients and 100 healthy subjects as the ...

Thalassemia is a congenital hemolytic disorder caused by a partial or complete deficiency of alpha- or beta-globin chain synthesis. Homozygous carriers of beta-globin gene defects suffer from severe anemia and other serious complications from early childhood. The disease is treated by chronic blood transfusion. However, this can cause severe iron overload resulting in progressive organ failure....

β-thalassemia major can be caused by homozygosity or compound heterozygosity for β-globin gene mutations (HBB gene). Most cases are inherited from parents who both have diseased alleles of the HBB gene. We report a patient with late-onset β-thalassemia major that evolved from β-thalassemia minor in which only one of her parents had the diseased HBB gene. To study the cause of β-thalassemia majo...

Upon erythroid cell maturation in vivo, beta-thalassemic erythroid cells accumulate unmatched unstable alpha-globin chains that are believed to be a causal factor in such cell destruction. This study showed that beta-thalassemia/Hb E erythroid precursor cells from peripheral blood had accelerated maturation, and could mature to the terminal erythroid stage. During the early period of cell cultu...

Background: β-thalassemia minor is characterized by reduced β-haemoglobin chain synthesis and sometimes mild anaemia, although carriers of β-thalassemia minorare usually clinically asymptomatic.Nonspecific abdominal complaints may be caused by gastrointestinal carbohydrate malabsorption (lactose and fructose) and/or malabsorption of biogenic amines (histamine), or proteins (gluten). Objectives:...

Thalassemia and other structural haemoglobinopathies are the major erythrocyte formation disorder prevalent in certain parts of the world including Bangladesh. We investigated 600 cases of anaemic patients referred from various parts of the country for diagnosis and counselling during 3 months (April to June 2011) of time. The most common form of haemoglobin (Hb) formation disorder observed in ...

In this study we determined serum IL-8 levels in 18 untransfused patients with beta-thalassemia intermedia and in 14 subjects affected by HbH disease. As reported in polytransfused homozygous beta-thalassemia, untransfused beta-thalassemia and HbH disease show significantly (p < 0.005) higher serum IL-8 levels than normal controls. Our data suggests that there could be an intrinsic cause for th...

The concurrence of malaria and hemoglobinopathies, observed in malaria endemic regions, reflects the phenomenon of natural selection. The incidence of alpha and beta Thalassemia is very high at the seaside locations related with malaria in the worldwide. The aim of this study is to investigate the distribution of thalassemia from highland to seaside and show due to malaria hypothesis in Turkey....

The hereditary persistence of fetal hemoglobin (HPFH) and delta beta thalassemia are heterogeneous disorders characterised by increased levels of fetal hemoglobin and high level of this Hb continues in adulthood. The distinction between these two conditions is not always possible with routine hematologic analysis and molecular characterisation of the defect is required. We encountered such a ra...