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Detection of <i>β</i>-Hemoglobin Gene and Sickle Cell Disorder from Umbilical Cord Blood

Journal of Biosciences and Medicines 2017年第10期5卷 51-63页

作者： sheikh anika rahman Md. Shad Ebna Rahaman Shahena Aktar Shipa Md. Mohosin Rana Rukshana Khan Mohammad Golam Rob Mahmud Jilwatun Noor Firuza Sultana Md. Faruque Miah Department of Genetic Engineering and Biotechnology Shahjalal University of Science and Technology Sylhet Bangladesh Department of Obstetrics and Gynaecology Jalalabad Ragib-Rabeya Medical College and Hospital Sylhet Bangladesh Department of Medicine Jalalabad Ragib-Rabeya Medical College and Hospital Sylhet Bangladesh Department of Microbiology Sylhet Women’s Medical College and Hospital Sylhet Bangladesh Department of Microbiology Jalalabad Ragib-Rabeya Medical College and Hospital Sylhet Bangladesh

Sickle cell disease (SCD) is one of the most common hemoglobinopathies, which is caused by the replacement of glutamic acid with valine at the sixth position of the beta-globin amino acid chain which sickling of the entire red blood cells in the homozygous (Hb S/S) condition. There are many analyses and screening procedures were developed to detect sickle cell anemia in the early age of birth, especially from heel prick blood, but in case of developing countries, it would be more acceptable to detect sickle cell disorder using umbilical cord blood just after birth rather than using heel prick blood. In this study, umbilical cord blood (UCB) was used to detect β-hemoglobin gene and sickle cell disorder. Polymerase chain reaction (PCR) based analysis was done using two primers (wild-type and mutant type) to detect this disorder. A total number of 22 samples were enrolled in this experiment for PCR amplification among which nineteen samples were identified by amplification of both 267 bp and 517 bp fragments revealing heterozygous sickle cell trait (Hb A/S), whereas three samples were found to amplify of 517 bp only revealing healthy individuals. The result from PCR analysis was then collaborated with the information of the mothers of each sample to analyze the result more conveniently and found that the mothers of all individuals except the three samples had anemia or mild form of anemia, thus it was expected that the newborn might have anemia trait (Hb A/S) the exception was found in case of sample No. 9 and sample No. 15. Both samples showed the bands on 267 bp and 517 bp thus expressed the sickle cell disease trait although the mothers of these samples were not anemic. However, no samples were recorded having sickle cell anemia (9 Hb S/S). The inherent simplicity and low cost of this PCR based analysis with umbilical cord blood will be considered as an effective tool in future newborn screening in Bangladesh.

关键词： β-Hemoglobin Gene Sickle Cell Disorder Umbilical Cord Blood New Born Screening

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Incidence, Mortality, and Epidemiology of Leukemia in South Asia: An Ecological Study

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Open Journal of Epidemiology 2023年第1期13卷 73-82页

作者： Rakibul Hasan Rifat Md. Shah Poran Saiful Islam anika Tabassum Sumaya Md. Mozahidul Alam Md Rashedur rahman Bangladesh Health Research Initiative Mirpur Dhaka Bangladesh Department of Pharmacy Primeasia University Banani Dhaka Bangladesh Department of Pharmacy Jahangirnagar University Savar Dhaka Bangladesh

Background: Nowadays cancer is a buzzword in every corner of the world. Back a few decades, cancer was not that much known to the people of South Asia let alone known of Leukemia. Many countries in the South Asian region are designated as developing countries. Hence, the deficiency of diagnosis system, treatment, management, and lack of knowledge about leukemia in this region are major problems. Therefore, the incidence rate, mortality rate, and several deaths are increasing day by day. Methods: This cross-sectional study is aimed to investigate the incidence and mortality of leukemia in South Asian Countries for the year 2020 by acquiring data from the global cancer project (GLOBOCAN2020) accessible at https://***. Results: In South Asia, 1,733,573 cancer cases were documented in 2020 where 62,163 cases were leukemia related. The highest incidence rate was reported in Pakistan (4.3 in 1,000,000) and Sri Lanka (4.1 in 1,000,000) and the lowest in Bangladesh (1.8 in 1,000,000) and Nepal (2.0 in 1,000,000). On the other hand, 1,124,875 death had been reported in 2020, where 45,707 (4.1%) death was associated with leukemia. Pakistan (3.4 in 1,000,000) and Maldives (3.1 in 1,000,000) had the highest death and lowest in Bangladesh (1.4 in 1,000,000) and Nepal (1.5 in 1,000,000). Adults aged from 60 - 85 years old have the highest rate of incidence and mortality rate in all countries except Nepal. Conclusions: Leukemia is one of the major concerning cancer of all ages people in South Asia, the situation and related risk factors information can be helpful to reduce death through proper treatment.

关键词： Leukemia Blood Cancer South Asia Incidence Mortality Epidemiology

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