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Raghuwanshi B, Ahuja K, Sharma G, Sharma K, Singh M, Yadav A, Kumar S, Sharma PK, Chander H, Dubey D. The Distribution Patterns of Rhesus (Rh) Antigens. Cureus 2024; 16:e62476. [PMID: 39015862 PMCID: PMC11251307 DOI: 10.7759/cureus.62476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/16/2024] [Indexed: 07/18/2024] Open
Abstract
INTRODUCTION The determination of one's blood group is dictated by the inheritance-based diversity in the presence or absence of RBC antigens on the surface. Extended Rhesus (Rh) antigens are the most clinically relevant antigens of blood group systems after the ABO blood group system in transfusion medicine. The aim of this study was to serologically assess the prevalence of extended Rh antigens across diverse blood group systems. METHODS A total of 2043 samples were tested for the ABO blood group and Rh typing with monoclonal antisera. The Rh phenotyping (C, c, E, e ) was performed on all the samples. RESULTS The most frequently observed ABO blood group was O (36.5%), while AB (13.6%) was identified as the least prevalent. Positive Rh D antigen was found in 91.6% of tested samples, while 8.4% were Rh D-negative. The most frequently encountered antigen was e, followed by D, while the least prevalent was E. DISCUSSION Establishing a Rh phenotype repository for blood donors and conducting Rh phenotype assessments as part of pretransfusion testing before initiating the initial blood transfusion for each patient could significantly lower the patients' incidence of alloimmunization.
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Affiliation(s)
- Babita Raghuwanshi
- Transfusion Medicine, All India Institute of Medical Sciences, Bhopal, Bhopal, IND
| | - Kanchan Ahuja
- Blood Reagent Laboratory, National Institute of Biologicals, Noida, IND
| | - Garima Sharma
- Blood Reagent Laboratory, National Institute of Biologicals, Noida, IND
| | - Kalpana Sharma
- Blood Reagent Laboratory, National Institute of Biologicals, Noida, IND
| | - Meghna Singh
- Blood Reagent Laboratory, National Institute of Biologicals, Noida, IND
| | - Aarti Yadav
- Blood Reagent Laboratory, National Institute of Biologicals, Noida, IND
| | - Subhash Kumar
- Blood Reagent Laboratory, National Institute of Biologicals, Noida, IND
| | - Pankaj K Sharma
- Blood Reagent Laboratory, National Institute of Biologicals, Noida, IND
| | - Harish Chander
- Biotherapeutics Research Laboratory, National Institute of Biologicals, Noida, IND
| | - Devesh Dubey
- Transfusion Medicine, All India Institute of Medical Sciences, Bhopal, Bhopal, IND
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Sonker A, Dubey A, Mohan Y. Molecular typing of Kell, Kidd, and Duffy antigens in direct antiglobulin test-positive autoimmune hemolytic anemia patients. Asian J Transfus Sci 2024; 18:56-61. [PMID: 39036688 PMCID: PMC11259340 DOI: 10.4103/ajts.ajts_174_23] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 09/26/2023] [Accepted: 10/18/2023] [Indexed: 07/23/2024] Open
Abstract
BACKGROUND In autoimmune hemolytic anemia (AIHA) patients, conventional pretransfusion testing is difficult to interpret due to the presence of autoantibodies which may show panreactivity. Molecular phenotyping of red cell antigens could potentially be used to precisely match blood units, thereby reducing the need to perform intensive serologic laboratory testing, hence time delay in providing transfusion to such patients. The aim of this study is to perform the molecular typing for Kell, Kidd, and Duffy blood group antigens in direct antiglobulin test (DAT)-positive red blood cells of AIHA patients and provide corresponding antigen-matched blood for transfusion therapy. MATERIALS AND METHODS Blood samples from 50 normal blood donors and 30 DAT-positive AIHA patients were tested using standard serological techniques and polymerase chain reaction-based methods for Kell (K/k), Kidd (Jka/Jkb), and Duffy (Fya/Fyb) blood group systems. Five patients requiring blood transfusion were given donor blood units identical for Kell, Kidd, and Duffy antigens and followed up. RESULTS Genotyping and phenotyping results were 100% concordant for normal blood donors. Serological phenotyping of minor red cell antigens showed varied degree of agglutination for AIHA patients. The molecular typing was able to detect the antigen frequency accurately in all samples. The results of genotyping were used to provide Kell-, Kidd-, and Duffy-matched blood for transfusion therapy to AIHA patients with no adverse reaction. CONCLUSION Molecular blood group typing has proved immensely useful in the determination of actual antigen profile and hence in providing appropriate transfusion support in patients with AIHA reduced risk of transfusion reactions and alloimmunization.
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Affiliation(s)
- Atul Sonker
- Department of Transfusion Medicine, Sanjay Gandhi Post Graduate Institute of Medical Science, Lucknow, Uttar Pradesh, India
| | - Anju Dubey
- Department of Transfusion Medicine, Kalyan Singh Super Speciality Cancer Institute, Lucknow, Uttar Pradesh, India
| | - Yatendra Mohan
- Department of Transfusion Medicine, S.N. Medical College, Agra, Uttar Pradesh, India
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Red Blood Cell Alloimmunizations in Thalassaemia Patients With Regular Transfusion in China: a Systematic Review and Meta-Analysis. Transfus Clin Biol 2023; 30:256-262. [PMID: 36764573 DOI: 10.1016/j.tracli.2023.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 02/01/2023] [Accepted: 02/02/2023] [Indexed: 02/11/2023]
Abstract
OBJECTIVE The development of red blood cell alloimmunization intensifies transfusion complication in thalassaemia patients. The purpose of this paper is to evaluate the existing evidence on the prevalence of erythrocyte alloimmunization in China by meta-analysis. We systematically searched cross-sectional studies regarding the alloimmunization of thalassaemia patients with regular blood transfusion in China from year 2000 to May 2021 in the Cochrane library, PubMed, EMBASE, Web of Science, and Chinese databases including CNKI, Wanfang Data, Vip and CBM. Data extraction and quality evaluation of the included studies were performed. Meta-analysis was performed using the DerSimonian and Laird random-effects models with inverse variance weighting. The presence of publication bias was tested by Egger's test, and the methodological quality of each included article was evaluated by the criteria specific to prevalence studies. RESULTS A total of 1874 patients and 263 alloantibodies from 11 studies were identified and included in the meta-analysis. The proportion of alloantibodies against antigens belonging to the Rh, MNSs and Kidd systems were as high as 70.3%, 17.9%, and 6.5%, respectively. Meta-analysis showed that the overall prevalence of alloimmunization among transfusion-dependent thalassaemia patients in China is 11.4% (95%CI: 7.2%∼16.3%). CONCLUSIONS The characteristics of red blood cell alloimmunization among thalassaemia patients with regular transfusion in China differ greatly from those in other countries. Therefore, transfusion strategies shall be actively adapted in line with thalassaemia patients in China to minimize the risk of alloimmunization.
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Sonker A, Dubey A, Mohan Y. A comparison of serological phenotyping and molecular genotyping for Kell, Kidd, and Duffy antigens in multi-transfused thalassemia patients. Asian J Transfus Sci 2023; 17:53-57. [PMID: 37188031 PMCID: PMC10180786 DOI: 10.4103/ajts.ajts_115_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 10/11/2022] [Accepted: 11/06/2022] [Indexed: 05/17/2023] Open
Abstract
BACKGROUND In multi-transfused thalassemia patients, serological phenotyping fails to test patient's actual blood group antigen profile due to the presence of donor red blood cell (RBC) in the circulation. This limitation of serological tests can be overcome by genotype determination using the polymerase chain reaction (PCR)-based methods. The aim of this study is to compare the serological phenotyping of Kell, Kidd, and Duffy blood group systems with molecular genotyping in the normal blood donors and multi-transfused thalassaemia patients. MATERIALS AND METHODS Blood samples from 100 normal blood donors and 50 thalassemia patients were tested using standard serological techniques and PCR-based methods for Kell (K/k), Kidd (Jka/Jkb), and Duffy (Fya/Fyb) blood group systems. The results were compared for concordance. RESULTS Genotyping and phenotyping results were 100% concordant for normal blood donors whereas those for thalassemia patients showed 24% discordance. The frequency of alloimmunization in thalassemia patients was 8%. The results of genotyping were used to provide Kell, Kidd, and Duffy matched blood for transfusion therapy to thalassemia patients. CONCLUSION The actual antigen profile in multitransfused thalassaemia patients can be reliably determined using genotyping. This would benefit in providing better antigen matched transfusion therapy to such patients hence reducing the rate of alloimmunization.
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Affiliation(s)
- Atul Sonker
- Department of Transfusion Medicine, Sanjay Gandhi Post Graduate Institute of Medical Science, Lucknow, Uttar Pradesh, India
| | - Anju Dubey
- Department of Immunohematology and Blood Transfusion, Kalyan Singh Super Speciality Cancer Institute, Lucknow, Uttar Pradesh, India
| | - Yatendra Mohan
- Department of Transfusion Medicine, S.N. Medical College, Agra, Uttar Pradesh, India
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Shastry S, Chenna D, Basavarajegowda A, Das S, Chaudhary RK. Red blood cell alloimmunization among recipients of blood transfusion in India: A systematic review and meta-analysis. Vox Sang 2022; 117:1057-1069. [PMID: 35608911 DOI: 10.1111/vox.13296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 03/23/2022] [Accepted: 04/14/2022] [Indexed: 11/27/2022]
Abstract
BACKGROUND AND OBJECTIVES There is a varied prevalence of red cell alloimmunization being reported from different parts of India. This study aimed to estimate the overall prevalence of alloimmunization in India by performing a systematic review of the literature and to establish the most suitable antigen-matching strategy to reduce the red blood cell (RBC) alloimmunization rate among transfusion recipients. MATERIALS AND METHODS A systematic search of all the original articles published in English on RBC alloimmunization among transfusion recipients from India in MEDLINE, SCOPUS, CINAHL and Google Scholar bibliographic databases was conducted. After screening the articles as per inclusion/exclusion criteria, data extraction was done independently by two sets of investigators. Meta-analysis was performed by the binary random-effects model using the restricted maximum likelihood method. RESULTS A total of 44 studies on RBC alloimmunization, with a cumulative sample size of 309,986 patients, were grouped into hospital-based and multiply-transfused patients, which yielded a prevalence of 0.5 (95% confidence interval; 0.3-0.8) and 4.8 (95% confidence interval; 3.9-5.7) per 100 patients, respectively. As many as 1992 alloantibodies were identified among the 1846 alloimmunized patients. The most common antibody identified was anti-E (127; 31.99%), followed by anti-c (75; 18.89%) in multiply-transfused patients. CONCLUSION The rate of alloimmunization was 0.5 per 100 patients tested for antibodies and 4.8 per 100 patients receiving transfusion. Considering E- and c-antigen-matched red cells along with ABO and RhD matching may significantly reduce the overall occurrence of alloimmunization among Indian population who are transfusion-dependent.
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Affiliation(s)
- Shamee Shastry
- Department of Immunohematology and Blood Transfusion, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Deepika Chenna
- Department of Immunohematology and Blood Transfusion, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Abhishekh Basavarajegowda
- Department of Transfusion Medicine, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
| | - Soumya Das
- Department of Transfusion Medicine, All India Institute of Medical Sciences (AIIMS), Nagpur, Maharashtra, India
| | - Rajendra K Chaudhary
- Department of Transfusion Medicine, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
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Salem DE, Habashy DM, ElSayed HTA, Mohamed D, Youssef I, Atif H. Identification of molecular alleles of Kell, Kidd, and Duffy in multi-transfused patients with undetermined phenotypes: An approach to reduce alloimmunization. Asian J Transfus Sci 2022. [DOI: 10.4103/ajts.ajts_55_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Mezginejad F, Anani Sarab GR, Atarodi K, Oodi A, Azarkeivan A. Prognostic Value Evaluation of HLA-DRB1*07:01, *10, *12, *13:01 Alleles for Alloimmunization in Transfusion-Dependent Thalassemia. Transfus Apher Sci 2021; 60:103271. [PMID: 34535395 DOI: 10.1016/j.transci.2021.103271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 08/28/2021] [Accepted: 09/05/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Transfusion is a lifesaving treatment for lots of patients. However, in chronic blood recipients such as thalassemia patients, there are high concerns about alloantibody production that affects the quality of their life. Therefore, research on risk factors of alloimmunization has been started and followed. This study aimed at the determination of correlation probability between some HLADRB1 alleles and alloimmunization in Iranian thalassemia patients. MATERIALS AND METHODS The present study was conducted on 60 alloimmunized and 60 non-alloimmunized transfusion-dependent thalassemia patients. Antibody screening and identification tests were carried out using the tube method, and HLA-DRB1 genotyping was done using a single specific primer-polymerase chain reaction (PCRSSP). RESULTS The results of antibody screening showed that the most prevalent alloantibodies were Anti-K (46.7 %), and followed by Anti-E (32.5 %), Anti-C (15.8 %), Anti-D (13.3 %), Anti-e (8 %), and Anti-c (5.8 %), respectively. DRB1*07:01 was detected more in non-responder patients (28.3 %). However, data analysis showed that there is no significant relationship between DRB1*07:01, *10, *13:01 frequency among responder and non-responder groups (p = 0·195, 0.648, 0.402, respectively). There was not any significant correlation between HLA-DRB1*10 and *13:01 allele and alloimmunization. There was a significant association between HLA-DRB1*12 and alloimmunization (p < 0·05, OR = 2.071, CI: 1.716-2.501). CONCLUSION The findings of this study represented that there is a significant relationship between HLADRB1*12 and Kell and E alloantibodies. Although more developed studies on other HLA alleles are demanded, these findings can be valuable in determining important alloimmunization risk factors to better management of transfusion complications.
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Affiliation(s)
- Fatemeh Mezginejad
- Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran
| | | | - Kamran Atarodi
- Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran
| | - Arezoo Oodi
- Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran
| | - Azita Azarkeivan
- Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran..
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Jonas DE, Crotty K, Yun JDY, Middleton JC, Feltner C, Taylor-Phillips S, Barclay C, Dotson A, Baker C, Balio CP, Voisin CE, Harris RP. Screening for Prediabetes and Type 2 Diabetes: Updated Evidence Report and Systematic Review for the US Preventive Services Task Force. JAMA 2021; 326:744-760. [PMID: 34427595 DOI: 10.1001/jama.2021.10403] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
IMPORTANCE Type 2 diabetes is common and is a leading cause of morbidity and disability. OBJECTIVE To review the evidence on screening for prediabetes and diabetes to inform the US Preventive Services Task Force (USPSTF). DATA SOURCES PubMed/MEDLINE, Cochrane Library, and trial registries through September 2019; references; and experts; literature surveillance through May 21, 2021. STUDY SELECTION English-language controlled studies evaluating screening or interventions for prediabetes or diabetes that was screen detected or recently diagnosed. DATA EXTRACTION AND SYNTHESIS Dual review of abstracts, full-text articles, and study quality; qualitative synthesis of findings; meta-analyses conducted when at least 3 similar studies were available. MAIN OUTCOMES AND MEASURES Mortality, cardiovascular morbidity, diabetes-related morbidity, development of diabetes, quality of life, and harms. RESULTS The review included 89 publications (N = 68 882). Two randomized clinical trials (RCTs) (25 120 participants) found no significant difference between screening and control groups for all-cause or cause-specific mortality at 10 years. For harms (eg, anxiety or worry), the trials reported no significant differences between screening and control groups. For recently diagnosed (not screen-detected) diabetes, 5 RCTs (5138 participants) were included. In the UK Prospective Diabetes Study, health outcomes were improved with intensive glucose control with sulfonylureas or insulin. For example, for all-cause mortality the relative risk (RR) was 0.87 (95% CI, 0.79 to 0.96) over 20 years (10-year posttrial assessment). For overweight persons, intensive glucose control with metformin improved health outcomes at the 10-year follow-up (eg, all-cause mortality: RR, 0.64 [95% CI, 0.45 to 0.91]), and benefits were maintained longer term. Lifestyle interventions (most involving >360 minutes) for obese or overweight persons with prediabetes were associated with reductions in the incidence of diabetes (23 RCTs; pooled RR, 0.78 [95% CI, 0.69 to 0.88]). Lifestyle interventions were also associated with improved intermediate outcomes, such as reduced weight, body mass index, systolic blood pressure, and diastolic blood pressure (pooled weighted mean difference, -1.7 mm Hg [95% CI, -2.6 to -0.8] and -1.2 mm Hg [95% CI, -2.0 to -0.4], respectively). Metformin was associated with a significant reduction in diabetes incidence (pooled RR, 0.73 [95% CI, 0.64 to 0.83]) and reduction in weight and body mass index. CONCLUSIONS AND RELEVANCE Trials of screening for diabetes found no significant mortality benefit but had insufficient data to assess other health outcomes; evidence on harms of screening was limited. For persons with recently diagnosed (not screen-detected) diabetes, interventions improved health outcomes; for obese or overweight persons with prediabetes, interventions were associated with reduced incidence of diabetes and improvement in other intermediate outcomes.
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Affiliation(s)
- Daniel E Jonas
- RTI International-University of North Carolina at Chapel Hill Evidence-based Practice Center, Chapel Hill
- Department of Internal Medicine, The Ohio State University, Columbus
| | - Karen Crotty
- RTI International-University of North Carolina at Chapel Hill Evidence-based Practice Center, Chapel Hill
- RTI International, Research Triangle Park, North Carolina
| | - Jonathan D Y Yun
- Thayer Internal Medicine, MaineGeneral Health, Waterville, Maine
| | - Jennifer Cook Middleton
- RTI International-University of North Carolina at Chapel Hill Evidence-based Practice Center, Chapel Hill
- Cecil G. Sheps Center for Health Services Research, University of North Carolina at Chapel Hill
| | - Cynthia Feltner
- RTI International-University of North Carolina at Chapel Hill Evidence-based Practice Center, Chapel Hill
- Cecil G. Sheps Center for Health Services Research, University of North Carolina at Chapel Hill
- Department of Medicine, University of North Carolina at Chapel Hill
| | - Sian Taylor-Phillips
- Warwick Medical School, University of Warwick, Coventry, West Midlands, United Kingdom
| | - Colleen Barclay
- RTI International-University of North Carolina at Chapel Hill Evidence-based Practice Center, Chapel Hill
- Department of Internal Medicine, The Ohio State University, Columbus
| | - Andrea Dotson
- Cecil G. Sheps Center for Health Services Research, University of North Carolina at Chapel Hill
| | - Claire Baker
- RTI International-University of North Carolina at Chapel Hill Evidence-based Practice Center, Chapel Hill
- Cecil G. Sheps Center for Health Services Research, University of North Carolina at Chapel Hill
| | - Casey P Balio
- RTI International-University of North Carolina at Chapel Hill Evidence-based Practice Center, Chapel Hill
- Cecil G. Sheps Center for Health Services Research, University of North Carolina at Chapel Hill
| | - Christiane E Voisin
- RTI International-University of North Carolina at Chapel Hill Evidence-based Practice Center, Chapel Hill
- Cecil G. Sheps Center for Health Services Research, University of North Carolina at Chapel Hill
| | - Russell P Harris
- Cecil G. Sheps Center for Health Services Research, University of North Carolina at Chapel Hill
- Department of Medicine, University of North Carolina at Chapel Hill
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NasrEldin E, Khaled SAA, Abdelhameed NO, Atwa M, Thabet MM, Elsayh KI, Elgammal SA. Genotyping versus phenotyping of non-ABO erythrocyte antigens in patients with the Mediterranean hemopathic syndromes: Effect of transfusion therapy. PLoS One 2021; 16:e0251576. [PMID: 34228734 PMCID: PMC8260000 DOI: 10.1371/journal.pone.0251576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 04/28/2021] [Indexed: 11/18/2022] Open
Abstract
The Mediterranean hemopathic syndromes (MHS) are the most prevalent hemoglobinopathies in the Mediterranean basin. Transfusion therapy is the main therapy for these disorders, particularly for severe forms of the disease. Currently, pre-transfusion serological typing of erythrocyte antigens is the standard tool for reducing complications of transfusion in those patients. This study compared genotyping with phenotyping of non-ABO erythrocyte antigens in patients with MHS and assessed the effect of transfusion therapy on their results. One-hundred ninety-eight MHS patients were recruited, screened, and proven negative for allo-antibodies. They were grouped into two groups: (1) 20 newly diagnosed patients with no transfusion history and (2) 178 previously diagnosed patients undergoing transfusion therapy. Patients were interviewed and clinically examined. Full blood count (FBC) and high performance liquid chromatography (HPLC) were done for group 1 only. Genotyping and phenotyping of non-ABO erythrocyte antigens were performed for group 1, and 25 patients out of group 2 were propensity score-matched (PSM) with group 1. Both groups were gender and age matched; 55% and 74% of groups 1 and 2 had major disease, respectively. Insignificant differences were observed between genotyping and phenotyping of non-ABO erythrocyte antigens in group 1, while significant discrepancies and mixed field results were noted in group 2 patients. Discrepancies were obvious with JKa, JKb, and little c antigens. Conclusively, molecular typing is a powerful tool for pre-transfusion testing in chronically transfused MHS patients. This testing reduces incidence of transfusion reactions. JKa, JKb and little c antigens are the most clinically significant non-ABO erythrocyte antigens.
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Affiliation(s)
- Eman NasrEldin
- Department of Clinical Pathology, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Safaa A. A. Khaled
- Department of Internal Medicine-Clinical Hematology Unit, Assiut University Hospital /Unit of Bone Marrow Transplantation, South Egypt Cancer Institute, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Nada O. Abdelhameed
- Department of Clinical Pathology, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Maha Atwa
- Department of Clinical Pathology, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Marwa M. Thabet
- Department of Clinical Pathology, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Khalid I. Elsayh
- Department of Pediatrics, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Sahar A. Elgammal
- Department of Clinical Pathology, Faculty of Medicine, Assiut University, Assiut, Egypt
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Mani A, Mishra G, Kulkarni S, Gupta D. D--phenotype due to RHD-RHCE hybrid transcript in a case of severe haemolytic disease of newborn with anti-Rh 17(Hrₒ) antibodies. Transfus Med 2021; 31:383-386. [PMID: 34121248 DOI: 10.1111/tme.12799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 06/01/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND D antigen is one among the most immunogenic antigens and is the most common cause of Haemolytic Disease of Fetus and Newborn (HDFN). The D-phenotype is a rare Rh variant in which none of the RhCE antigens are expressed on the red cell surface. Individuals having D-phenotype are capable of producing a rare alloantibody named as anti-Rh17(Hrₒ) in response to pregnancy or transfusion and has the potential to react with C/c and E/e antigens causing severe haemolytic transfusion reaction (HTR) and haemolytic disease of fetus and newborn (HDFN). CASE REPORT We have encountered a case of severe HDFN with an accidental discovery of D- phenotype of the mother with anti-Rh-17 antibodies. D- phenotype has been confirmed with molecular typing along with genotyping of all family members. CONCLUSION Rare phenotypes like D- individuals especially if allo-immunised are of great concern at times of transfusion requirements. Hence, proper identification of these individuals are important to contribute them to the rare donor pool and to adopt adequate patient blood management strategies.
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Affiliation(s)
- Anila Mani
- Department of Transfusion Medicine, Sree Chitra Tirunal Institute for Medical Sciences, Thiruvananthapuram, Kerala, India
| | - Garima Mishra
- Department of Transfusion Medicine, ICMR-National Institute of Immunohematology, KEM Hospital Campus, Parel, Mumbai, Maharashtra, India
| | - Swati Kulkarni
- Department of Transfusion Medicine, ICMR-National Institute of Immunohematology, KEM Hospital Campus, Parel, Mumbai, Maharashtra, India
| | - Debasish Gupta
- Department of Transfusion Medicine, Sree Chitra Tirunal Institute for Medical Sciences, Thiruvananthapuram, Kerala, India
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Sarihi R, Oodi A, Dadkhah Tehrani R, Jalali SF, Mardani F, Azarkeivan A, Gudarzi S, Amirizadeh N. Blood group genotyping in alloimmunized multi-transfused thalassemia patients from Iran. Mol Genet Genomic Med 2021; 9:e1701. [PMID: 33963817 PMCID: PMC8372074 DOI: 10.1002/mgg3.1701] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 03/02/2021] [Accepted: 04/13/2021] [Indexed: 01/19/2023] Open
Abstract
Objectives Serological methods may not be reliable for RBC antigen typing, especially in multi‐transfused patients. The blood group systems provoking the most severe transfusion reactions are mainly Rh, Kell, Kidd, and Duffy. We intended to determine the genotype of these blood group system antigens among Iranian alloimmunized thalassemia patients using molecular methods and compare the results with serological phenotyping. Methods Two hundred patients participated in this study. Blood group phenotype and genotype were determined using the serological method and PCR‐SSP, respectively. The genotypes of patients with incompatibility between phenotype and genotype were re‐evaluated by RFLP‐PCR and confirmed by DNA sequencing. Results Discrepancies between phenotype and genotype results were found in 132 alleles and 83 (41.5%) patients; however, there was complete accordance between the three genotyping methods. Most discrepancies were detected in Rh and Duffy systems with 47 and 45 cases, respectively, and the main discrepancy was in the FY*B/FY*B allele when serologically showed Fy(a+b+). All 39 undetermined phenotypes, due to mixed‐field reactions, were resolved by molecular genotyping. Conclusion Molecular genotyping is more reliable compared with the serological method, especially in multi‐transfused patients. Therefore, the addition of blood group genotyping to serological assays can lead to an antigen‐matched transfusion in these patients.
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Affiliation(s)
- Reyhaneh Sarihi
- Blood transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran
| | - Arezoo Oodi
- Blood transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran
| | - Raziyeh Dadkhah Tehrani
- Blood transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran
| | - Seyedeh Farzaneh Jalali
- Blood transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran
| | - Fahimeh Mardani
- Blood transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran
| | - Azita Azarkeivan
- Blood transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran
| | - Samira Gudarzi
- Blood transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran
| | - Naser Amirizadeh
- Blood transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran
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Afroz T, Mishra G, Saleh AJM, Madkaikar M, Kulkarni S. Molecular characterization of a rare Rh phenotype Dc-from the Indian subcontinent. Transfus Apher Sci 2021; 60:103109. [PMID: 33752990 DOI: 10.1016/j.transci.2021.103109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 03/01/2021] [Accepted: 03/03/2021] [Indexed: 11/17/2022]
Abstract
Unusual Rh phenotypes such as Rhnull, D-- and Dc- etc. are rarely encountered in routine blood bank testing. The Rhnull phenotype is characterized by the absence of all Rh antigens, D-- phenotype does not express any RhCcEe antigens whereas Dc- phenotype individual lacks expression of antithetical E /e antigens. These individuals may produce multiple Rh antibodies against missing antigens. An old woman (B RhD positive) from Bangladesh with end-stage renal disease developed severe anaemia. Cross-matching with ABO and RhD compatible blood units showed +3 agglutination reaction. Detailed immunohaematological investigations showed a lack of C, E and e antigens, thus identifying the rare Rh variant as Dc-. Antibodies against C and e antigens were also detected in the patient's serum. PCR-SSP confirmed the absence of the molecular region defining the C, E and e antigens. Copy number analysis by QMPSF revealed the homozygous state of (RHCE-D(4-9)-CE) allele at the RHCE gene locus. This is the first report of the rare Dc- variant individual from the Indian subcontinent.
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Affiliation(s)
- Tamanna Afroz
- Department of transfusion medicine, Evercare Hospital, Dhaka, Bangladesh
| | - Garima Mishra
- Department of transfusion medicine, ICMR- National institute of immunohematology, Mumbai, India
| | | | - Manisha Madkaikar
- Department of transfusion medicine, ICMR- National institute of immunohematology, Mumbai, India
| | - Swati Kulkarni
- Department of transfusion medicine, ICMR- National institute of immunohematology, Mumbai, India.
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Gholamrezazade A, Amirizadeh N, Oodi A. Genotyping analysis of the MNS blood group system of thalassemia patients with alloantibodies in Iran. Transfus Apher Sci 2020; 60:103006. [PMID: 33229298 DOI: 10.1016/j.transci.2020.103006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 10/27/2020] [Accepted: 10/29/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND Serological methods are unreliable for accurate determination of blood group antigens in multi-transfused thalassemia patients. The MNS blood group system has five high-frequency antigens. Many studies demonstrated that some antibodies including anti-S, anti-s, and anti-U may cause acute and delayed transfusion reactions and hemolytic disease of the fetus and newborn. This study aimed to determine the genotype of the MNS blood group in thalassemia patients with alloantibodies by molecular methods. MATERIAL AND METHODS In this study, 104 blood samples from thalassemia patients were collected. The blood group phenotype for M, N, S and s antigens was determined by the tube hemagglutination method. MNS blood group genotyping was performed using PCR-SSP and DNA Sequencing methods. RESULTS All patients were genotyped with a total of 6 pairs of primers. Discrepancies between genotype and phenotype were observed in 22 patients with S/s alleles and 2 patients with M/N alleles, however, there was full accordance between the results of SSP-PCR and DNA sequencing. The frequency of MNS blood group alleles was determined as follows: 25 % MNSs, 23 % MNss, 21 % MMSs, 9% MMSS, 9% MMss, 8% NNss, 2%MNSS, and NNSS, NNSs, MM genotypes at 1% each. CONCLUSION In conclusion, molecular genotyping is more reliable than serological methods in multiple transfusion patients and can lead to a more compatible blood unit for transfusion in these patients.
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Affiliation(s)
- Atefe Gholamrezazade
- Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran.
| | - Naser Amirizadeh
- Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran.
| | - Arezoo Oodi
- Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran.
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Kulkarni S, Choudhary B, Gogri H, Sharma J, Madkaikar M. Red cell antigen phenotypes in blood donors & thalassaemia patients for creation of red cell antigen-matched inventory. Indian J Med Res 2020; 152:273-279. [PMID: 33107487 PMCID: PMC7881817 DOI: 10.4103/ijmr.ijmr_1199_18] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Background & objectives: Patients with thalasssaemia are at a risk of alloimmunization and the presence of RBC alloantibodies further complicates transfusion therapy. Matching for the critical antigens of Rh, Kell, Kidd and Duffy blood group systems has been shown to minimize alloimmunization. The aim of the present study was to create a database of extensively typed donors for clinically significant and common blood group antigens of Rh, Kidd, Kell and Duffy systems for transfusion therapy of multitransfused thalassaemic patients. Methods: Five hundred O group regular blood donors were phenotyped for Rh, Kell, Duffy and Kidd blood group antigens using haemagglutination technique. Eighty four non-alloimmunized and 15 alloimmunized thalassaemia major patients with known antigenic profiles (determined by polymerase chain reaction with sequence-specific primers) were selected for this study. Results: By analyzing antigen profiles of 500 O group regular donors, a database of 193 donors matching perfectly for Rh, Duffy, Kell and Kidd antigens was prepared for 15 alloimmunized patients. For non-alloimmunized 84 thalassaemic patients, a database of 405 donors was created. Interpretation & conclusions: A database of 500 regular blood donors phenotyped for common antigens of Rh, Duffy, Kell and Kidd blood group systems was created, which would be useful in providing extended antigen-matched RBCs for thalassaemia patients. This will improve the quality and effectiveness of transfusion therapy.
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Affiliation(s)
- Swati Kulkarni
- Department of Transfusion Medicine, ICMR-National Institute of Immunohaematology, KEM Hospital Campus, Mumbai, Maharashtra, India
| | - Bhavika Choudhary
- Department of Transfusion Medicine, ICMR-National Institute of Immunohaematology, KEM Hospital Campus, Mumbai, Maharashtra, India
| | - Harita Gogri
- Department of Transfusion Medicine, ICMR-National Institute of Immunohaematology, KEM Hospital Campus, Mumbai, Maharashtra, India
| | - Jayashree Sharma
- Blood Bank, Seth G S Medical College & KEM Hospital, Mumbai, Maharashtra, India
| | - Manisha Madkaikar
- Department of Transfusion Medicine, ICMR-National Institute of Immunohaematology, KEM Hospital Campus, Mumbai, Maharashtra, India
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Pagano MB, Allen ES, Chou ST, Dunbar NM, Gniadek T, Goel R, Harm SK, Hopkins CK, Jacobson J, Lokhandwala PM, Metcalf RA, Raval JS, Schwartz J, Shan H, Spinella PC, Storch E, Cohn CS. Current advances in transfusion medicine: a 2019 review of selected topics from the AABB Clinical Transfusion Medicine Committee. Transfusion 2020; 60:1614-1623. [PMID: 32472580 DOI: 10.1111/trf.15848] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 04/10/2020] [Accepted: 04/13/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND The AABB Clinical Transfusion Medicine Committee (CTMC) compiles an annual synopsis of the published literature covering important developments in the field of transfusion medicine (TM) for the board of director's review. This synopsis is now made available as a manuscript published in TRANSFUSION. STUDY DESIGN AND METHODS CTMC committee members review original manuscripts including TM-related topics published in different journals between late 2018 and 2019. The selection of topics and manuscripts are discussed at committee meetings and are chosen based on relevance and originality. After the topics and manuscripts are selected, committee members work in pairs to create a synopsis of the topics, which is then reviewed by two committee members. The first and senior authors of this manuscript assembled the final manuscript. Although this synopsis is comprehensive, it is not exhaustive, and some papers may have been excluded or missed. RESULTS The following topics are included: infectious risks to the blood supply, iron donor studies, pre-transfusion testing interference and genotyping, cold agglutinin disease (CAD), HLA alloimmunization in platelet transfusions, patient blood management, updates to TACO and TRALI definitions, pediatric TM, and advances in apheresis medicine. CONCLUSION This synopsis provides easy access to relevant topics and may be useful as an educational tool.
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Affiliation(s)
- Monica B Pagano
- Transfusion Medicine Division, Department of Laboratory Medicine, University of Washington, Seattle, Washington
| | - Elizabeth S Allen
- Department of Pathology, University of California San Diego, La Jolla, California
| | - Stella T Chou
- Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Nancy M Dunbar
- Department of Pathology and Laboratory Medicine, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
| | | | - Ruchika Goel
- Transfusion Medicine Division, Department of Pathology, School of Medicine, Johns Hopkins University, Baltimore, Maryland.,Division of Hematology/Oncology, Simmons Cancer Institute at Southern Illinois University School of Medicine and Mississippi Valley Regional Blood Center, Springfield, Illinois, USA
| | - Sarah K Harm
- Pathology and Laboratory Medicine, University of Vermont Medical Center, Burlington, Vermont
| | | | - Jessica Jacobson
- Department of Pathology, New York University Grossman School of Medicine, New York, New York
| | - Parvez M Lokhandwala
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Ryan A Metcalf
- Clinical Pathology Division, Department of Pathology, University of Utah, Salt Lake City, Utah
| | - Jay S Raval
- Transfusion Medicine Service, Department of Pathology, University of New Mexico, Albuquerque, New Mexico
| | - Joseph Schwartz
- Transfusion Medicine & Cellular Therapy, Department of Pathology & Cell Biology, Columbia University, New York, New York
| | - Hua Shan
- Department of Pathology, Stanford University, Stanford, California
| | - Philip C Spinella
- Division of Pediatric Critical Care, Washington University in St Louis, St Louis, Missouri, USA
| | - Emily Storch
- Office of Blood Research and Review, Food and Drug Administration, Silver Spring, Maryland
| | - Claudia S Cohn
- Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, Minnesota
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