Do Alpha Thalassemia, Fetal Hemoglobin, and the UGT1A1 Polymorphism have an Influence on Serum Bilirubin Levels and Cholelithiasis in Patients with Sickle Cell Disease?

被引：6

作者：

de Azevedo, Laura Alencastro ^{[1
]}

Bonazzoni, Joyce ^{[1
]}

Wagner, Sandrine Comparsi ^{[2
]}

Farias, Mariela Granero ^{[3
]}

Bittar, Christina M. ^{[3
]}

Daudt, Liane ^{[3
]}

de Castro, Simone Martins ^{[1
]}

机构：

[1] Univ Fed Rio Grande do Sul, Fac Farm, Av Ipiranga 2752, BR-90610000 Porto Alegre, RS, Brazil

[2] Univ Fed Ciencias Saude Porto Alegre, Porto Alegre, RS, Brazil

[3] Hosp Clin Porto Alegre, Porto Alegre, RS, Brazil

来源：

MOLECULAR DIAGNOSIS & THERAPY | 2017年 / 21卷 / 04期

关键词：

GILBERTS-SYNDROME; SOUTHERN BRAZIL; ANEMIA; PROMOTER; GENE; PREVALENCE; ASSOCIATION; CHILDREN; METAANALYSIS;

D O I：

10.1007/s40291-017-0283-y

中图分类号：

Q3 [遗传学];

学科分类号：

071007 ; 090102 ;

摘要：

Background Increased destruction of erythrocytes in patients with sickle cell disease results in chronic hyperbilirubinemia and leads to the formation of gallstones. Objectives The objective of this study was to determine the combined influence of alpha thalassemia, fetal hemoglobin, and the UGT1A1 polymorphism on serum bilirubin levels and cholelithiasis in patients with sickle cell disease. Methods We analyzed 72 patients treated in the outpatient hematology unit of the Clinical Hospital of Porto Alegre. The alpha thalassemia trait was determined by multiplex polymerase chain reaction and the polymorphisms of UGT1A1 by capillary electrophoresis with tagged primers. Results Total and indirect bilirubin levels differed significantly between genotypes TA7/TA7 and TA6/TA6 (p < 0.05). Bilirubin levels were influenced by the UGT1A1 polymorphism but not by alpha thalassemia and fetal hemoglobin. There was no association between cholelithiasis and any of the variables studied. Conclusion These preliminary findings suggest that the UGT1A1 gene can influence serum bilirubin levels in sickle cell anemia and serve as a tool to differentiate an acute hemolytic condition from a pre-existing condition of hyperbilirubinemia.

引用

页码：437 / 442

页数：6

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