Background: Red blood group genes are highly polymorphic and the distribution of alleles varies among different populations and ethnic groups.
Aim: To evaluate allele polymorphisms of the Rh, Kell, Duffy and Kidd blood group systems in a population of the State of Paraná
Methods: Rh, Kell, Duffy and Kidd blood group polymorphisms were evaluated in 400 unrelated blood or bone marrow donors from the northwestern region of Paraná State between September 2008 and October 2009. The following techniques were used: multiplex-polymerase chain reaction genotyping for the identification of the RHD gene and RHCE*C/c genotype; allele-specific polymerase chain reaction for the RHDψ and restriction fragment length polymorphism polymerase chain reaction for the RHCE*E/e, KEL, FY-GATA and JK alleles.
Results: These techniques enabled the evaluation of the frequencies of Rh, Kell, Duffy and Kidd polymorphisms in the population studied, which were compared to frequencies in two populations from the eastern region of São Paulo State.
Conclusion: The RHCE*c/c, FY*A/FY*B, GATA-33 T/T, JK*B/JK*B genotypes were more prevalent in the population from Paraná, while RHCE*C/c, FY*B/FY*B, GATA-33 C/C, JK*A/JK*B genotypes were more common in the populations from São Paulo.
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http://dx.doi.org/10.5581/1516-8484.20110009 | DOI Listing |
Sci Rep
January 2025
Aix Marseille Univ, CNRS, EFS, ADES, Marseille, France.
Despite the advances in paleogenomics, red cell blood group systems in ancient human populations remain scarcely known. Pioneer attempts showed that Neandertal and Denisova, two archaic hominid populations inhabiting Eurasia, expressed blood groups currently found in sub-Saharans and a rare "rhesus", part of which is found in Oceanians. Herein we fully pictured the blood group genetic diversity of 22 Homo sapiens and 14 Neandertals from Eurasia living between 120,000 and 20,000 years before present (yBP).
View Article and Find Full Text PDFAsian J Transfus Sci
October 2024
Biochemistry, AIIMS, Rishikesh, Uttarakhand, India.
Introduction: There are scarce data on Indian blood donors with respect to blood group phenotypes using molecular diagnostic modalities. Hence, we planned to estimate frequencies of blood group alleles/phenotypes using DNA microarray analysis in the north Indian RhD-negative blood donor population. With this initial pilot study, we plan to expand it to our entire donor population.
View Article and Find Full Text PDFHaemolytic disease of the fetus and newborn (HDFN) is a rare condition that causes a baby to develop anaemia while growing inside the woman; or after birth. Left untreated, this may lead to stillbirth or neonatal death. HDFN is caused when the pregnant woman's antibodies cross the placenta, enter the baby's circulation, and attach to proteins called antigens (inherited from the father) on the baby's haemoglobin containing red blood cells, and cause them to break apart, causing fetal anaemia.
View Article and Find Full Text PDFTrans R Soc Trop Med Hyg
November 2024
Laboratório de Pesquisa Clínica em Doença de Chagas, Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz, Av. Brasil 4365, Rio de Janeiro 21040-900, Brazil.
Background: The mechanisms that determine the progression to cardiac or digestive forms of chronic Chagas disease (CD) are still unclear. We assessed the association between blood group antigens ABO, Rh, Kell, Kidd, Duffy and MNS, and chronic CD clinical forms.
Methods: Patients were included consecutively between March 2013 and April 2016.
Immunohematology
September 2024
1Hemocentro Unicamp, Campinas, São Paulo, Brazil.
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