Distribution of Blood Types and ABO Gene Frequencies in Egypt

2019 ◽  
Vol 152 (Supplement_1) ◽  
pp. S153-S153
Author(s):  
Mohamed Abdelmonem ◽  
Amira Fyala ◽  
Ayman Boraik ◽  
Mohamed Shedid ◽  
Amira Husseiny Mohamed ◽  
...  
Keyword(s):  
Blood Group ◽  
Blood Groups ◽  
Transfusion Practice ◽  
Abo Blood Group ◽  
Blood Group System ◽  
Gene Frequencies ◽  
Future Health ◽  
Egyptian Population ◽  
Naturally Occurring ◽  
Donor Population

Abstract ABO blood group was first discovered by Landsteiner in 1901. Currently, there are more than 30 blood group systems, but ABO system remains the most clinically important of all blood groups in transfusion practice. The ABO blood group system antibodies are naturally occurring without any exposure to RBCs through transfusion or pregnancy, unlike the other blood group systems. Method The study was performed on a total of 40,591 healthy blood donors in Egypt. ABO and Rh (D) groupings were performed on all donors’ samples. Data on the frequency of ABO and Rh(D) blood groups were reported in numbers and percentages. Results The study showed that type A is the most common blood group (35.12%) in Egypt followed by O at 31.94%, followed by B at 23.12%, while AB had the least prevalence at 9.74%; A > O > B > AB. Our study showed that 91.78% of the donor population were Rh positive and 8.22% were Rh negative. The frequencies of the IA, IB, and IO alleles were calculated using the Hardy-Weinberg law of equilibrium. The calculated gene frequencies are 0.2537 for IA (p), 0.1812 for IB (q), and 0.5651 for IO (r). In the Egyptian population, O (r) records the highest value, followed by B (q) and A (p); O > B > A. The homozygous types were as follows: OO, 31.94%; AA, 6.43%; and BB, 3.28%. The heterozygous types were AO, 28.67%; BO, 20.47%; and AB, 9.78%. Conclusions The study provides the first accurate ABO gene frequency data as well as information on the distribution of ABO blood group Rh groups of various alleles in the Egyptian population. This information is very helpful in the effective management of the blood bank inventory. It will help transfusion services planning for future health challenge and improve blood transfusion practice.

scholarly journals Prevalence of ABO and Rh blood groups and their association with Transfusion-Transmissible Infections (TTIs) among Blood Donors in Islamabad, Pakistan

2021 ◽  
Vol 3 (4) ◽  
Author(s):  
Muhammad Yousaf Khan ◽  
Farwa Sijjeel ◽  
Ahmareen Khalid ◽  
Rukhshan Khurshid ◽  
Umm E Habiba ◽  
...  
Keyword(s):  
Viral Infection ◽  
Blood Group ◽  
Blood Donors ◽  
Blood Groups ◽  
Abo Blood Group ◽  
Blood Group System ◽  
Syphilis Infection ◽  
Group System ◽  
Group A ◽  
Group B

Certain Rh positive blood groups showed a link between the ABO blood grouping and susceptibility to some infectious ailments. Study was carried out to find the association of ABO Blood Group System / Rh type with different viral infection. A retrospective observational study was carried in 7631 blood donors to find the association of ABO Blood Group System / Rh type with viral infection due to hepatitis B virus, hepatitis C virus, human immunodeficiency virus and Syphilis. Data of the study indicateF that the highest incidence of blood group in blood donor was B followed by O, A and AB. The incidence of HBsAg +ve, HCV Ab +ve and infection of Syphilis was also highest in donor with blood group B followed by O, A and AB. Blood group A were more susceptible to HIV Ab +ve followed by blood group B, O and AB. The group B donors had the greatest risk of viral infection with HBV, HCV, HIV, and Syphilis; followed by the groups O, A, and AB. Donors in group AB had the lowest incidence rate of all viral infection. The study revealed that blood group B is most prevalent among donors, followed by blood groups O, A, and AB. On the other side, the rate of HBV, HCV, HIV, and Syphilis infection was greatest among group B donors, followed by group O, group A, and group AB. Copyright(c) The Authors

scholarly journals ABO blood group system and occurrence of ischemic stroke

2021 ◽  
Author(s):  
Rafaella Chiodini LOTZ ◽  
Carolina da Silveira WELTER ◽  
Silvia Aparecida RAMOS ◽  
Leslie Ecker FERREIRA ◽  
Norberto Luiz CABRAL ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Blood Group ◽  
Cerebrovascular Diseases ◽  
Blood Groups ◽  
Blood Type ◽  
Control Group ◽  
Abo Blood Group ◽  
Blood Group System ◽  
Abo Blood Groups ◽  
Group System

ABSTRACT Background: Ischemic stroke (IS) is a multifactorial disease that presents high rates of morbimortality in Brazil. Several studies proved that there is a link between the ABO blood group system and the occurrence of thrombotic events. Nonetheless, its association with IS is not well established. Objective: For that reason, the purpose hereof was to investigate the relation between the ABO blood groups and the occurrence of IS in a Brazilian cohort of cerebrovascular diseases. Methods: Five hundred and twenty-nine subjects were included over 12 months, from which 275 presented an IS episode and 254 composed the control group. Blood samples were drawn for direct and reverse serotyping. The control and IS groups were compared regarding the traditional risk factors and the distribution of the ABO blood groups. Results: The IS group presented a higher prevalence of systemic arterial hypertension (SAH), diabetes mellitus, smoking habits, family history, cardiopathy, and sedentary lifestyle in comparison with the control group. The AB blood type prevailed among the patients (5.1 vs. 1.6%; p<0.05) and this group had more SAH cases in comparison with the O type group (92.9 vs. 67.3%; p<0.05). Conclusions: Our results suggest that the occurrence of IS is more frequent among patients of the AB blood type.

Predictive and prognostic effect of ABO blood group on immune checkpoint inhibitors

2021 ◽  
pp. 1-8
Author(s):  
Yakup Ergun ◽  
Selin Akturk Esen ◽  
Murat Bardakci ◽  
Gokhan Ucar ◽  
Ziya Kalkan ◽  
...  
Keyword(s):  
Malignant Melanoma ◽  
Blood Group ◽  
Immune Checkpoint ◽  
Immune Checkpoint Inhibitors ◽  
Checkpoint Inhibitors ◽  
Blood Groups ◽  
Abo Blood Group ◽  
Blood Group System ◽  
Advanced Malignant Melanoma ◽  
The Relationship

BACKGROUND: The relationship of the ABO blood group system with the immune response is known, but its relationship with immune checkpoint inhibitors (ICIs) has not been clearly investigated until now. OBJECTIVE: In this study, the relationship between different blood groups and nivolumab treatment response in patients with advanced malignant melanoma was investigated. METHODS: The data of patients who used nivolumab for advanced malignant melanoma between April 2018 and April 2021 were retrospectively reviewed. RESULTS: A total of 73 patients were included in the study. In the progression-free survival (PFS) analysis according to blood groups, it was 3.9 months, 16.1 months, 20.0 months and 3.0 months for A, B, AB and O, respectively (p= 0.1). Overall survival (OS) analysis according to blood groups was 5.1 months, 25.0 months, 20.0 months and 9.3 months for A, B, AB and O, respectively (p= 0.1). The B antigen group (B or AB) had significantly longer PFS and OS than the non-B antigen group (A or O) (16.1 vs. 3.5 months for PFS, respectively, p= 0.03; 20.0 vs. 7.4 months for OS, respectively, p= 0.02). CONCLUSIONS: The presence of B antigen provides a significant advantage in terms of survival in patients using ICIs for advanced melanoma.

The Xg blood groups and sex-chromosome aneuploidy

1970 ◽  
Vol 259 (828) ◽  
pp. 37-40 ◽  
Keyword(s):  
Blood Group ◽  
Sex Chromosome ◽  
Blood Groups ◽  
Red Cells ◽  
Blood Group System ◽  
Gene Frequencies ◽  
Dominant Character ◽  
Group System ◽  
Sex Chromosome Aneuploidy ◽  
Sex Chromosome Abnormalities

Both the distribution and the inheritance of an X-linked character may give information about sex chromosome abnormalities. Colour blindness was used for this purpose by Polani, Lessof & Bishop as long ago as 1956, but the X-linked blood group system, Xg, recognized in 1961, is much more informative simply because of its more convenient gene frequencies. There are two groups in the system, X g(a +) and Xg(a -), depending on whether red cells have the antigen Xg a or not. The antigen is a dominant character and is possessed by about 66 % of European males and by about 88 % of European females. The following tables and figures illustrate the sort of information that Xg can give about aneuploidy.

scholarly journals Association of ABO blood group with COVID-19 severity, acute phase reactants and mortality

2021 ◽  
Author(s):  
Uzma Ishaq ◽  
Asmara Malik ◽  
Jahanzeb Malik ◽  
Asad Mehmood ◽  
Azhar Qureshi ◽  
...  
Keyword(s):  
Logistic Regression ◽  
Blood Group ◽  
Cox Regression ◽  
Survival Function ◽  
Blood Groups ◽  
Abo Blood Group ◽  
Blood Group System ◽  
Acute Phase Reactants ◽  
Blood Group A ◽  
Group A

AbstractBackground and objectiveThe ABO blood group system has been associated with infectious and noninfectious disease, including dengue, hepatitis B virus (HBV), and severe respiratory syndrome coronavirus (SARS), etc. Coronavirus disease 2019 (COVID-19) is the ongoing pandemic with multitude of manifestations and association of ABO blood group in South-East Asian population needs to be explored.MethodsIt was a retrospective study of patients with real time polymerase chain reaction (RT-PCR) diagnosis of COVID-19 at Advanced Diagnostics and Liver Center between April 2020 to January 2021. Blood group A, B, O, and AB were identified in every participant, irrespective of their RH type and allotted groups 1, 2,3, and 4, respectively. Cox regression and logistic regression were used for inferential statistics.ResultsThe cohort included 1067 patients: 521 (48.8%) of blood group O, 295 (27.6%) of blood group B, 202 (18.9%) of blood group A, and 49 (4.5%) of blood group AB. The majority of the patients were males 712 (66.7%) with an average body mass index (BMI) of 27.45 ± 3.53. Patients with AB blood group stayed a median (IQR) of 14 (5, 27) days while A blood group cohort stayed 13 (6,27) days and overall 10.6% COVID-19-related mortality was observed at our center, with 13.9% in blood group A as the majority of COVID-19 deaths. Regarding severity of COVID-19 disease, there was a trend towards critical disease in blood group A and O (n=83, 41.1%; n=183, 35.1%; OR, 11.34 (95% CI, 46.79-53.22); p<0.001). Logistic regression demonstrates blood group O and AB as predictors for severe COVID-19 disease (O: OR: 0.438 (95% CI: 0.168-1.139) p=0.090; AB: OR: 0.415 (95% CI: 0.165-1.046) p=0.062) and cause-specific hazards ratio (HR) for survival function was 3.206 (p=0.361) among all blood groups.ConclusionAlthough the prevalence of blood group O was higher in this cohort, hospital stay, severity of disease, and mortality were associated with blood group A. Further studies are needed for understanding the underlying mechanism behind the association of blood groups with COVID-19.

scholarly journals A comparative study on ABO blood group and fertility hormones in infertile women in Calabar, Southern Nigeria

2018 ◽  
Vol 2 (2) ◽  
pp. 19-24
Author(s):  
Uwem Okon Akpan ◽  
Iya Eze Bassey ◽  
Nnenna Nkiruka Nwatu ◽  
Sunday Jeremiah Offor
Keyword(s):  
Blood Group ◽  
Strong Association ◽  
Blood Groups ◽  
Female Infertility ◽  
Enzyme Linked Immunosorbent Assay ◽  
P Value ◽  
Abo Blood Group ◽  
Blood Group System ◽  
Significant Difference ◽  
The Mean

Infertility, a disorder of the reproductive system, is commonly linked to hormonal, pituitary, cervical, uterine, immunological or psychological factors. Besides these factors, it can also be idiopathic or unexplained. Hence, there is a need for more research to unravel the causes of the unexplained infertility. This work aimed at finding out whether there is any relationship between ABO blood group system and female infertility. The study design was cross-sectional. Three hundred women between 18 and 40 years attending fertility clinic at the University of Calabar Teaching Hospital, Calabar between 2011 and 2012 were recruited for this study. Serum progesterone, prolactin, follicle stimulating hormone (FSH), luteinizing hormone (LH) and estradiol were determined using Enzyme linked immunosorbent assay (ELISA) while ABO blood grouping was determined using the tube method. Statistical analysis was done using SPSS version 18. The confidence level was set at 95% where p-value less than 0.05 was considered statistically significant. The mean age of the women was 30.65 ± 5.47 years and the percentage distributions of the blood groups among the women were as follows: 24% A, 12% B, 4% AB and 60% O. The mean FSH levels of blood groups A and O individuals were significantly higher (p<0.05) than that of groups B. However, there was no significant difference (p>0.05) in the mean levels of progesterone, prolactin, LH and estradiol in the respective groups. From this study, 38% of the population had increased levels of progesterone, 58% and 18.7% had elevated prolactin and FSH levels respectively while 11.33% and 43.3% had reduced levels of LH and estradiol levels respectively. Though, there was high prevalence of hyperprolactinemia observed in this study, there was no strong association between ABO blood group and female infertility but, the increased FSH levels observed in blood groups A and O may be a potential link between blood group and infertility and therefore may be beneficial for further study.

scholarly journals COVID-19 and blood groups: A six-months observational study in Ferrara, Italy

2021 ◽  
Vol 13 (3) ◽  
Author(s):  
Salvatore Greco ◽  
Nicolò Fabbri ◽  
Alessandro Bella ◽  
Beatrice Bonsi ◽  
Alessandra Violi ◽  
...  
Keyword(s):  
Blood Group ◽  
Cox Regression ◽  
Laboratory Data ◽  
Blood Groups ◽  
Abo Blood Group ◽  
Blood Group System ◽  
Survival Functions ◽  
Group System ◽  
Hospital Stays ◽  
A Minor

The current literature still gives a little information about the relationships between the ABO blood group system and the immune response to the virus or the different disease outcomes. Hypothesizing the presence of a predisposition by some blood groups to COVID-19, we searched for differences between patients towards the different outcomes of disease.We enrolled 330 inpatients with a diagnosis of COVID-19, determining both their ABO blood group system and Rh factor, collecting demographic, clinical and laboratory data. We searched for relationships with COVID-19 outcomes within an observation period of 180 days (Intensification of Care - IoC, Inhospital death, 180-days mortality). The most frequent ABO blood group was A (45.8%); a minor part was represented by group O (38.8%), B (11.5%), AB (3.9%). As for the Rh factor, 86.7% of patients were Rh-positive. There were no significant differences between blood groups and Rh factors as for age, length of hospital stays (LoS), or Charlson Comorbidity Index (CCI), nor we found significant relationships between the ABO groups and COVID-19 outcomes. A significant relation was found between AB group and IoC (p=0.03) while as for the Rh factor, the patients with Rh factor positive died with less frequency during the stay (p=0.03). Cox regression analyses showed substantial differences in the survival functions concerning the Rh factors. The Rh factor seems to be involved in the 180-day prognosis. The survival functions of patients with Rh factor positive show, in fact, significantly better curves when compared to those with Rh factor negative.

scholarly journals The ABO Blood Group System and Plasmodium Infection in Iran: A Comprehensive Study

2019 ◽  
Author(s):  
Farshid Karami ◽  
Mozhdeh Mohammadian ◽  
Seif Ali Mahdavi ◽  
Mohammad Taghi Rahimi
Keyword(s):  
Blood Group ◽  
Geographical Distribution ◽  
Significant Relationship ◽  
Blood Groups ◽  
Abo Blood Group ◽  
Blood Group System ◽  
Plasmodium Infection ◽  
Group System ◽  
Group Distribution ◽  
Comprehensive Study

Background: Geographical distribution of ABO blood groups affects by race, ethnicity, migration and some infectious agents, such as Plasmodium species. P. falciparum is the major causative agent of death in malaria that can affect ABO blood group distribution in different populations. Therefore, the objective of the current study was to determine the effect of p. falciparum on ABO blood group distribution in Iran. Materials & Methods The present study was conducted on the database of Iranian Blood Transfusion Organization (IBTO) in 30 provinces of the country about ABO and Rh blood groups of the people who referred to health centers from June 2011 to August 2012.   Results: A total number of 2124560 individuals were referred to IBTO in 30 provinces. The highest and lowest rates of O blood group were observed in Sistan & Baluchestan (64.6%) and Lorestan (37.7%), respectively. P. falciparum was the most common species of malaria in Sistan & Baluchestan (53215) and the rarest infection agent in Semnan province (20). The results showed statistically significant relationship (p < 0.05) between prevalence of P. falciparum with O blood group, while this relationship for a blood group was not significant (p > 0.05). Conclusion: Our results revealed a significant relationship between prevalence of P. falciparum and geographical distribution of ABO blood. There was also found more susceptibility and risk to malaria infection and cerebral malaria in a blood group compared to other groups. In addition, this was the first comprehensive study on the ABO blood group system and Plasmodium infection in Iran.

scholarly journals Evaluation of blood groups in patients with anti TPO positive

2019 ◽  
Vol 10 (6) ◽  
pp. 67-70 ◽  
Author(s):  
Eşref Araç ◽  
İhsan Solmaz
Keyword(s):  
Diabetes Mellitus ◽  
Blood Group ◽  
Blood Groups ◽  
Abo Blood Group ◽  
Blood Group System ◽  
Negative Group ◽  
Positive Group ◽  
Group System ◽  
The Relationship ◽  
B Blood Group

Background: In studies, ABO blood group system has been shown to be associated with type 2 diabetes mellitus, chronic renal failure, gestational diabetes mellitus, postpartum depression, coronary artery disease, Crohn’s disease as well as various cancer types such as stomach, breast, skin cancers and rheumatologic diseases. Aims and Objective: The relationship between anti TPO positivity and ABO blood group system is aimed to be investigated by using blood groups which are the product of genetic structure and easy to identify by considering the relationship between anti TPO positivity and blood group. Materials and Methods: 4312 patients with determined blood groups were included among the patients, who were admitted to the internal medicine outpatient clinics of our hospital between January 2, 2017 and May 28, 2019 and were screeened for thyroid antibodies with thyroiditis susceptibility. Results: The most common blood group was A in both anti TPO positive and anti TPO negative patient groups.The rate of those with O blood group was 2.65% higher in anti TPO positive group than anti TPO negative group. B blood group was found to be 4.87% higher in anti TPO negative group than anti TPO positive group (p:0.148). Conclusion: In conclusion, it was found that O blood group may be a risk factor for anti TPO positivity and B blood group is much lower in anti TPO positive ones. However, it is obvious that more comprehensive prospective multicentered clinical and experimental studies are needed to establish the relationship between blood groups and autoimmune diseases, especially autoimmune thyroiditis.

scholarly journals ABO, Rhesus blood groups and transfusion-transmitted infections among blood donors in Gabon

2018 ◽  
Vol 13 (1) ◽  
pp. 12 ◽  
Author(s):  
Christ-Dominique Ngassaki-Yoka ◽  
Jophrette Mireille Ntsame Ndong ◽  
Cyrille Bisseye
Keyword(s):  
Blood Group ◽  
Blood Donor ◽  
Representative Sample ◽  
Blood Donors ◽  
Blood Groups ◽  
Abo Blood Group ◽  
Blood Group Antigens ◽  
Abo Blood Groups ◽  
Donor Population ◽  
Monospecific Antisera

Background: Few studies focused on the study of blood groups in Gabon. This study aimed to determine the phenotypic frequency of ABO and Rhesus antigens in blood donors of Libreville and to assess the association between ABO blood groups and transfusion-transmitted infections.Materials and Methods: The study of ABO and Rhesus blood groups concerned 4,744 blood donors. ABO and Rhesus phenotyping were obtained using monoclonal monospecific antisera: anti-A, anti-B, anti-AB, anti-D, anti-E, anti-C, anti-c, and anti-e with an automate (QWALYS® 3, DIAGAST, France) or a card gel (ID Card, BIO-RAD) according to manufacturer’s instructions.Results: The phenotypic frequency of blood group antigens A, B, AB and O were respectively 21.0%; 17.6%; 2.6% and 58.9%. Those of rhesus antigens D, d, C, c, E and e were 97.7%; 2.3%; 15.9%; 99.9%; 17.6%; 99.3%, respectively. The prevalence of ABO and Rh antigens in Gabonese donors reported here are significantly different from those of neighboring countries. No association was found between the prevalence of HIV, HCV and syphilis and ABO blood groups. Instead, HBV seroprevalence was twice as high among non-O blood groups donors compared with blood group O donors [OR = 2 (CI 1.26 to 3.2), p = 0.003].Conclusions: This study provides new data on phenotypic frequency of ABO and Rh blood groups in a representative sample of the Gabonese blood donor population. It suggests a significant association between ABO blood group and HBV infection.

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