Asian Journal of Transfusion Science
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LETTER TO THE EDITOR Table of Contents   
Year : 2012  |  Volume : 6  |  Issue : 1  |  Page : 54-55
ABO and Rhesus blood groups in potential blood donors at Durgapur Steel city of the district of Burdwan, West Bengal


Department of Transfusion Medicine, The Mission Hospital, Durgapur, West Bengal, India

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Date of Web Publication16-Apr-2012
 

How to cite this article:
Nag I, Das SS. ABO and Rhesus blood groups in potential blood donors at Durgapur Steel city of the district of Burdwan, West Bengal. Asian J Transfus Sci 2012;6:54-5

How to cite this URL:
Nag I, Das SS. ABO and Rhesus blood groups in potential blood donors at Durgapur Steel city of the district of Burdwan, West Bengal. Asian J Transfus Sci [serial online] 2012 [cited 2019 Sep 21];6:54-5. Available from: http://www.ajts.org/text.asp?2012/6/1/54/95059


Sir,

All human populations share the same blood systems, although they differ in the frequencies of specific types. The incidence of ABO and Rhesus (Rh) groups varies very markedly in different parts of the world and in different races. [1] This study was conducted to determine the frequency of the ABO and Rh blood groups among potential local blood donors belonging to Durgapur city of West Bengal.

The study included 3850 potential blood donors. We observed that the most common blood group was 'O' (34.8%) followed by 'B' (33.6%), 'A' (23.9%), and 'AB' (7.7%). Rh 'D'-positive blood group incidence was 94.7%. The prevalence of the ABO phenotypes linked with Rh 'D' is presented in [Figure 1]. We observed that the prevalence of individual Rh common antigens were 'D' (94.7%), followed by 'C' (88.4%), 'E' (17.4%), 'd' (5.3%), 'c' (47.9%), and 'e' (98%). The commonest probable genotype among Rh-positive blood group was "R 1 R 1" (49.4%), the least common being "R z r" (0.1%). Among the Rh negative donors, the most prevalent genotype was "rr" (4.3%) [Figure 2].
Figure 1: Prevalence of ABO phenotypes linked with Rh 'D' genotypes

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Figure 2: Frequency of probable genotypes

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Few studies of ABO and Rh blood group prevalence among the various populations of India have been carried out. Nanu and Thapliyal reported group 'B' as most predominant in North India. [2] Our study was in agreement with the observation of Das et al. who conducted a blood group prevalence study among the south Indian. [3] On the basis of the number of subjects with ABO blood groups and applying Hardy Weinberg law, we observed that the distribution of allelic frequencies of ABO antigens in our population were 0.17, 0.24, and 0.59 for 'A,' 'B,' and 'O' groups, respectively. [4]

The current study had a significant implication in our blood bank inventory and transfusion service. The present study has been conducted in a single center comprising of 3850 donors. Large population and multicentric studies are required to estimate an accurate prevalence of common blood group in West Bengal, in particular, and eastern India, in general. Knowledge of blood group distribution is also important for clinical studies, for reliable geographical information, and for forensic studies in the population.

 
   References Top

1.Garraty G, Dzik W, Issitt PD, Lubin DM, Reid ME, Zelinski T. Terminology for blood group antigens and genes-historical origins and guidelines in the new millennium. Transfusion 2000;40:477-89.  Back to cited text no. 1
    
2.Nanu A, Thapliyal RM. Blood group gene frequency in a selected north Indian population. Indian J Med Res 1997;106:242-6.  Back to cited text no. 2
    
3.Das PK, Nair SC, Harris VK, Rose D, Mammen J, Bose YN, et al. A Distribution of ABO and Rh-D blood groups among blood donor in a tertiary care centre in South India. Trop Doct 2001;31:47-8.  Back to cited text no. 3
    
4.Strickberger MW. Dominance relations and multiple alleles in diploid organisms. 2 nd ed. New York, USA: McMillan Publishing Company Inc.; 1976. p. 164-80.  Back to cited text no. 4
    

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Correspondence Address:
Ipsita Nag
Department of Transfusion Medicine, The Mission Hospital, Sec-2C, Immon Kalyan Sarani, Durgapur, West Bengal
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0973-6247.95059

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2006 - Asian Journal of Transfusion Science | Published by Wolters Kluwer - Medknow
Online since 10th November, 2006