Rh blood group genotyping in alloimmunized thalassemic patientsin Tehran Adult Thalassemia Clinic during 2017-18
نویسندگان
چکیده مقاله:
Abstract Background and Objectives The main antigens of the Rh blood group system (D,C,c,E,e) after the ABO system, are the most immune antigens. Due to existence of donor's red blood cells in the patient's circulation serologic methods can not accurately detect blood group antigens in patients with chronic blood transfusions, but molecular methods can overcome many of these limitations. Materials and Methods In this cross sectional descriptive study, peripheral blood samples were taken from two hundred of alloimmunized thalassemic patients including 81 (40.5%) male and 119 (59.5%) female with mean age of 30 ± 10.9 (age range 4-65) at Tehran Thalassemia Clinic during 1976-96. Phenotyping was done for C,c,E,e antigens. Sequence Specific Primers (SSPs)-PCR was performed and the discrepant results between the phenotype and genotyping were confirmed by DNA sequencing. Results In this study, the highest prevalence of alloantibodies in the Rh system pertained to Anti-E 22% (44 patients) and Anti-D 10% (20 patients) and the frequency of the alleles in this blood group was determined C 71% (142), c 72.5% (145), E 23% (46), e 98% (196). Thirty eight out of 200 patients had different results between serology and genotype. Discrepancies were 7.5% (14) (RHC), 6% (11) (RHc), 9.5% (17) (RHE), and 1.5% (3) (RHe). Conclusions Molecular methods can help to determine the exact antigens as a complementary method by solving the problems of the serological method.
منابع مشابه
kidd blood group genotyping in alloimmunized thallasemia patients
Abstract Background and Objectives Hemagglutination has limitations in identifying the phenotype of patients who have been recently transfused due to the presence of donor red cells (RBCs) in the patient’s circulation. Kidd blood group is one of the most important blood groups in transfusion medicine and related antibodies are responsible for one third of delayed haemolytic transfusion reactio...
متن کاملTHE Rh BLOOD GROUP SYSTEM
T he Rh blood group system is one of the most polymorphic and antigenic blood group systems. It is second only to ABO in importance in blood transfusion and is well known as a primary cause of hemolytic disease of the fetus and newborn (HDFN). The principal antigen is D, and the terms Rh positive and Rh negative refer to the presence or absence of D antigen. Caucasians of European extraction ha...
متن کاملThe prevalence of undesired blood group antibodies in thalassemia patients
Abstract Background and Objectives Blood transfusion related alloimmunization is common among patients receiving regular blood transfusion, especially thalassemia patients. In this study we aimed to find the prevalence of alloimmunization among patients of thalassemia. Materials and Methods In this desciptional study, we screened 305 thalassemia patients (53.8% female and 46.2% male, age ...
متن کاملStudy of Kell blood group genotype in alloimmiunized thalassemia patients
Abstract Background and Objectives Alloimmunization is the most serious problem in thalassemia patients and Anti-K is the most prevalent antibody in these patients. So accurate identification of this antigen can significantly decrease the rate of alloimmunization. Serological phenotyping is usually not reliable in multi-transfused patients. Molecular genotyping can overcome limitations of hema...
متن کاملPrevalence of Osteoporosis among Thalassemia Patients from Zafar Adult Thalassemia Clinic, Iran
Background: The advances in treatment regimes for thalassemic patients have increased the survival among them therefore osteoporosis has emerged as an important cause of morbidity. The aim of this study was to determine the prevalence of osteoporosis and osteopenia in patients with thalassemia from Zafar Adult Thalassemia Clinic, Tehran, Iran. Patients and Methods: In this cross sectional inve...
متن کاملGenotyping of Mycobacterium Tuberculosis Isolated from Suspected Patients in Tehran in 2015-2017
Background and Aims: Unlike many global efforts to eradicate tuberculosis caused by Mycobacterium, it remains as a life-threatening infection with a worldwide incidence of 1.5 million cases each year. However, due to the lack of information about Mycobacterium tuberculosis characterization, more studies are required to evaluate strain diversity and epidemiology of tuberculosis to improve the th...
متن کاملمنابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ذخیره در منابع من قبلا به منابع من ذحیره شده{@ msg_add @}
عنوان ژورنال
دوره 17 شماره 1
صفحات 36- 46
تاریخ انتشار 2021-02
با دنبال کردن یک ژورنال هنگامی که شماره جدید این ژورنال منتشر می شود به شما از طریق ایمیل اطلاع داده می شود.
میزبانی شده توسط پلتفرم ابری doprax.com
copyright © 2015-2023