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Al-Sheryani A, Al-Gheithi H, Al Moosawi M, Al-Zadjali S, Wali Y, Al-Khabori M. Molecular Characterization of Glucose-6-phosphate Dehydrogenase Deficiency in Oman. Oman Med J 2023; 38:e552. [PMID: 38225994 PMCID: PMC10788846 DOI: 10.5001/omj.2023.107] [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: 08/26/2022] [Accepted: 05/03/2023] [Indexed: 01/17/2024] Open
Abstract
Objectives Glucose-6-phosphate dehydrogenase (G6PD) deficiency is the most encountered abnormality of red blood cell metabolism worldwide and has a high prevalence in Oman. The objective of the study was to characterize the mutation variants of G6PD deficiency in a cohort of the Omani population with partial and complete enzyme deficiency. Methods This prospective study included newborns and children less than one year of age with partial or complete G6PD enzyme deficiency identified on routine screening using a fluorescent spot test from 31 January 2017 to 12 September 2017 in Sultan Qaboos University Hospital. The identified samples were analyzed for the presence of C563T, G1003A, and other mutations using direct DNA sequencing of the polymerase chain reaction. Results Out of 3679 newborn samples screened, 21.0% were found to have complete or partial G6PD enzyme deficiency. A total of 145 participants were included in the genetic analysis, of which 133 (91.7%) were completely deficient in G6PD enzyme activity and 12 (8.3%) had partial deficiency. The Mediterranean variant (C563T) was identified in 129 (89.0%). Other variants were found as follows: eight (5.5%) had variant A-, three (2.1%) had the Chatham variant (G1003A), one (0.7%) had the Cosenza variant, and one (0.7%) had exon 11 variant. No mutation was found in two subjects. Conclusions The most common mutation in the Omani population is the Mediterranean mutation (C563T) followed by the variant A- mutation. However, not all participants were found to have a mutation.
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Affiliation(s)
- Ammar Al-Sheryani
- Hematopathology Residency Training Program, Oman Medical Specialty Board, Muscat, Oman
| | - Hajer Al-Gheithi
- Hematopathology Residency Training Program, Oman Medical Specialty Board, Muscat, Oman
| | - Muntadhar Al Moosawi
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, Canada
| | - Shaoib Al-Zadjali
- Hematology Laboratory Department, Sultan Qaboos University Hospital, Muscat, Oman
- Research laboratories, Sultan Qaboos Comprehensive Cancer Care and Research Center, Muscat, Oman
| | - Yasser Wali
- Child Health Department, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Murtadha Al-Khabori
- Hematology Department, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
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Molecular Characterization and Genotype-Phenotype Correlation of G6PD Mutations in Five Ethnicities of Northern Vietnam. Anemia 2022; 2022:2653089. [PMID: 35845714 PMCID: PMC9277213 DOI: 10.1155/2022/2653089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 06/10/2022] [Indexed: 11/17/2022] Open
Abstract
Glucose-6-phosphate dehydrogenase (G6PD) deficiency is the most common enzyme disorder and is caused by G6PD gene mutations. To date, more than 400 variants in the G6PD gene have been discovered, and about 160 identified variants are associated with a significant decrease in the G6PD enzyme activity. However, the molecular characterization and epidemiological study of G6PD deficiency are still limited in Vietnam. Therefore, we conducted this study to determine the G6PD variants among the Vietnamese populations and evaluate their correlation to G6PD enzyme activity. A total of 339 patients (302 males and 37 females) were enrolled in this study. The G6PD variants were identified by Sanger sequencing. Our results indicate that males are more severely deficient in G6PD than females. This enzyme activity in males (1.27 ± 1.06 IU/g·Hb) is significantly lower than in females (2.98 ± 1.57 IU/g·Hb) (p < 0.0001). The enzyme activity of the heterozygous-homozygous females and heterozygous females-hemizygous males was found to be significantly different (p < 0.05), which is interpreted due to random X-inactivation. For G6PD molecular characteristics, Viangchan (c.871G>A), Canton (c.1376G>T) and Kaiping (c.1388G>A) variants were the most dominant, accounting for 24.48%, 17.70%, and 22.42%, respectively, whereas the highest frequency of complex variants was observed in Viangchan/Silent with 20.35%. In terms of G6PD activity, the Union variant presented the lowest mean value (1.03 IU/g·Hb) compared to the other variants (p < 0.05). Computational analysis using Polyphen-2 tool investigated that all variants were relative to G6PD deficiency and separated the levels as benign and damaged. The result will establish effective methods to screen G6PD variants in Vietnam.
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Hamali HA. Glucose-6-Phosphate Dehydrogenase Deficiency: An Overview of the Prevalence and Genetic Variants in Saudi Arabia. Hemoglobin 2022; 45:287-295. [DOI: 10.1080/03630269.2022.2034644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Hassan A. Hamali
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, Jazan University, Gizan, Saudi Arabia
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Tarhani F, Nezami A, Heidari G, Abdolkarimi B. Clinical Manifestations and Therapeutic Findings of the Children with Glucose-6-Phosphate Dehydrogenase Deficiency Presenting Favism. Endocr Metab Immune Disord Drug Targets 2020; 21:1125-1129. [PMID: 32811422 DOI: 10.2174/1871530320999200818182905] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 06/22/2020] [Accepted: 07/22/2020] [Indexed: 11/22/2022]
Abstract
AIM Favism is characterized as acute anemia, due to Glucose-6-phosphate dehydrogenase (G6PD) deficiency as a result of fava beans intake. It is associated with paleness, jaundice, and hemoglobinuria. In this study, signs, symptoms and therapeutic findings of the patients with hemolysis due to G6PD deficiency were investigated in Shahid Madani Hospital of Khorramabad, Lorestan. METHODS This is a single-center cross-sectional descriptive study that was conducted on all children with G6PD deficiency-induced hemolysis. RESULTS 308 children (64.3% male and 35.7% female) were included in this study. The most common complaint was jaundice (82.5%) and the most common cause of hemolysis was the intake of fava bean (85.7%). 68% of the children were treated with hydration/fluid therapy. Blood transfusion was conducted in 36.36% of the cases and the mean of blood administered was 18.9 cc/kg. CONCLUSION In this study, hydration therapy was performed in most of the children presenting favism. Also, the incorrect calculation of the amount of blood needed for transfusion increased the frequency of blood transfusions and prolonged hospitalization time.
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Affiliation(s)
- Fariba Tarhani
- Department of Pediatrics, Faculty of Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Alireza Nezami
- Department of Pediatrics, Faculty of Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Ghobad Heidari
- Department of Pediatrics, Faculty of Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Babak Abdolkarimi
- Department of Pediatrics, Faculty of Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran
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Yi H, Li H, Liang L, Wu Y, Zhang L, Qiu W, Jiang W, Yang F, Li Q, Yang Z, Wang C, Cui L, He Y. The glucose-6-phosphate dehydrogenase Mahidol variant protects against uncomplicated Plasmodium vivax infection and reduces disease severity in a Kachin population from northeast Myanmar. INFECTION, GENETICS AND EVOLUTION : JOURNAL OF MOLECULAR EPIDEMIOLOGY AND EVOLUTIONARY GENETICS IN INFECTIOUS DISEASES 2019; 75:103980. [PMID: 31351234 PMCID: PMC6832843 DOI: 10.1016/j.meegid.2019.103980] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Revised: 07/08/2019] [Accepted: 07/24/2019] [Indexed: 01/19/2023]
Abstract
Glucose-6-phosphate dehydrogenase (G6PD) deficiency is one of the most common red cell disorders in the world. The aim of this study was to investigate whether the G6PD Mahidol variant and haplotype 1311 T/93C, which are prevalent in the Kachin ethnic population along the China-Myanmar border area, offer protection against Plasmodium vivax infection. Malaria was monitored in nine villages near the Laiza township, Kachin State, Myanmar, where 258 cases of uncomplicated P. vivax were identified in 2013-2017. From the same villages, 250 unrelated, malaria-free participants were recruited to serve as the control cohort. Quantitative enzyme activity analysis in 100 healthy individuals identified that both male hemizygotes and female heterozygotes of the G6PD Mahidol variant had on average ~40% lower enzyme activity relative to the wild-type individuals. Compared with the overall prevalence of 25.2% in the control cohort, the G6PD Mahidol variant had a significantly lower prevalence (7.0%) among the 258 vivax patients (P < .0001, χ2 test). Logistic regression analysis of G6PD genotypes stratified by sex showed that the individuals with the Mahidol 487A allele had dramatically reduced odds of having acute vivax malaria (adjusted odds ratio = 0.213 for male 487A hemizygotes, P < .0001, and 0.248 for female 487GA heterozygotes, P < .001). Furthermore, both 487A hemizygous male and 487GA heterozygous female patients had significantly lower asexual parasitemias than the wild-type patients, suggesting a potential effect on alleviating disease severity. In contrast, the silent mutation haplotype 1311 T/93C was highly prevalent (49.6%) in the study population, but it was not associated with altered G6PD enzymatic activities nor did it seem to provide protection against vivax infection or disease severity. Taken together, this study provided evidence that the Mahidol G > A mutation offers protection against P. vivax infection and potentially reduces disease severity in a Kachin population.
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Affiliation(s)
- Haoan Yi
- Department of Cell Biology and Medical Genetics, Kunming Medical University, Kunming, Yunnan Province, China
| | - Hong Li
- Department of Cell Biology and Medical Genetics, Kunming Medical University, Kunming, Yunnan Province, China
| | - Luxin Liang
- Department of Cell Biology and Medical Genetics, Kunming Medical University, Kunming, Yunnan Province, China
| | - Yanrui Wu
- Department of Cell Biology and Medical Genetics, Kunming Medical University, Kunming, Yunnan Province, China
| | - Lu Zhang
- Department of Cell Biology and Medical Genetics, Kunming Medical University, Kunming, Yunnan Province, China
| | - Wanfang Qiu
- Department of Cell Biology and Medical Genetics, Kunming Medical University, Kunming, Yunnan Province, China
| | - Weiyang Jiang
- Department of Cell Biology and Medical Genetics, Kunming Medical University, Kunming, Yunnan Province, China
| | - Fang Yang
- Department of Cell Biology and Medical Genetics, Kunming Medical University, Kunming, Yunnan Province, China
| | - Qing Li
- Department of Cell Biology and Medical Genetics, Kunming Medical University, Kunming, Yunnan Province, China
| | - Zhaoqing Yang
- Department of Pathogen Biology and Immunology, Kunming Medical University, Kunming, Yunnan Province, China
| | - Chengqi Wang
- Department of Internal Medicine, Morsani College of Medicine, University of South Florida, 3720 Spectrum Boulevard, Suite 304, Tampa, FL 33612, USA
| | - Liwang Cui
- Department of Internal Medicine, Morsani College of Medicine, University of South Florida, 3720 Spectrum Boulevard, Suite 304, Tampa, FL 33612, USA.
| | - Yongshu He
- Department of Cell Biology and Medical Genetics, Kunming Medical University, Kunming, Yunnan Province, China.
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Arunachalam AK, Sumithra S, Maddali M, Fouzia NA, Abraham A, George B, Edison ES. Molecular Characterization of G6PD Deficiency: Report of Three Novel G6PD Variants. Indian J Hematol Blood Transfus 2019; 36:349-355. [PMID: 32425388 DOI: 10.1007/s12288-019-01205-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Accepted: 09/30/2019] [Indexed: 12/13/2022] Open
Abstract
G6PD deficiency is a monogenic, X-linked genetic defect with a worldwide prevalence of around 400 million people and an overall prevalence of 8.5% in India. Hemolytic anemia is encountered in only a small proportion of patients with G6PD variants and is usually triggered by some exogenous agent. Although G6PD deficiency was reported in India more than 50 years ago, there are very few studies on molecular characterization and phenotypic correlation in G6PD deficient patients. We aimed to study the epidemiology and correlate the phenotypic expression with molecular genotypes in symptomatic G6PD deficient patients. All symptomatic hemolytic anaemia patients with a possible etiology of G6PD deficiency based on the clinical, hematological and biochemical parameters and reduced G6PD enzyme levels were included in this study. Molecular analysis of the G6PD gene was done by direct Sanger sequencing. From a total of 38 patients with hemolytic anemia suspected for G6PD deficiency, 24 patients had reduced G6PD enzyme levels and were included for the molecular analysis and mutations in the G6PD gene were identified in 21 of them (83.3%). The different mutations identified in our study include 6 patients with c.131C > G (G6PD Orissa), 3 patients with c.563C > T (G6PD Mediterranean), two patients with c.825G > T (G6PD Bangkok), one patient each with c.208T > C (G6PD Namouru), c.487G > A (G6PD Mahidol), c.949G > A (G6PD Kerala-Kalyan), c.100 G > A (G6PD Chatham), c.1178C > G (G6PD Nashville), c.1361 G > A (G6PD Andalus) and 4 patients with novel mutations (2 patients with c.1186C > T and 1 patient each with c.1288-2A > T and c.1372C > T. No disease causing genetic variants were identified in the other three cases. Co-inheritance of other red cell and hemoglobin disorders can modify the clinical phenotype of G6PD patients and the diagnostic accuracy can be improved by molecular characterization of the variant.
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Affiliation(s)
- Arun Kumar Arunachalam
- 1Department of Haematology, Christian Medical College, OT Building, 4th Floor, Vellore, Tamil Nadu 632004 India
| | - S Sumithra
- 1Department of Haematology, Christian Medical College, OT Building, 4th Floor, Vellore, Tamil Nadu 632004 India
| | - Madhavi Maddali
- 1Department of Haematology, Christian Medical College, OT Building, 4th Floor, Vellore, Tamil Nadu 632004 India
| | - N A Fouzia
- 2Department of Hematology, Christian Medical College, OT Building, 1st Floor, Vellore, Tamil Nadu 632004 India
| | - Aby Abraham
- 2Department of Hematology, Christian Medical College, OT Building, 1st Floor, Vellore, Tamil Nadu 632004 India
| | - Biju George
- 2Department of Hematology, Christian Medical College, OT Building, 1st Floor, Vellore, Tamil Nadu 632004 India
| | - Eunice S Edison
- 1Department of Haematology, Christian Medical College, OT Building, 4th Floor, Vellore, Tamil Nadu 632004 India
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Anantasomboon P, Chanda M, Jugnam‐ang W, Witoonpanich P, Cheepsunthorn P, Nuchprayoon I, Fucharoen S, Cheepsunthorn CL. Evaluating the performance of automated UV enzymatic assay for screening of glucose 6‐phosphate dehydrogenase deficiency. Int J Lab Hematol 2018; 41:192-199. [DOI: 10.1111/ijlh.12943] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 09/04/2018] [Accepted: 10/04/2018] [Indexed: 10/28/2022]
Affiliation(s)
| | - Makamas Chanda
- Biomedical Sciences ProgramGraduate SchoolChulalongkorn University Bangkok Thailand
| | - Watcharapong Jugnam‐ang
- Medical Biochemistry ProgramDepartment of BiochemistryFaculty of MedicineChulalongkorn University Bangkok Thailand
| | - Pirada Witoonpanich
- Division of NeurologyDepartment of MedicineFaculty of Medicine Ramathibodi HospitalMahidol University Bangkok Thailand
| | | | - Issarang Nuchprayoon
- Department of PaediatricsFaculty of MedicineChulalongkorn University Bangkok Thailand
| | - Suthat Fucharoen
- Thalassemia Research CenterInstitute of Molecular BiosciencesMahidol University Nakornpathom Thailand
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Alharbi KK. Genetic polymorphisms in paraoxonase 1 and G protein-coupled receptor 77, and the risk of glucose-6-phosphate dehydrogenase deficiency in a Saudi population. Saudi Med J 2015; 36:544-8. [PMID: 25935173 PMCID: PMC4436749 DOI: 10.15537/smj.2015.5.11860] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Objectives: To investigate the role of amino acid substitution variants Q192R and C698T in the development of glucose-6-phosphate dehydrogenase (G6PD) deficiency in a Saudi male population. Methods: This case-control study was carried out in 200 Saudi male individuals: 100 patients with G6PD deficiency, and 100 control subjects collected between July and August 2011 in the Taif region of Saudi Arabia. A total of 2100 male Saudi individuals were screened by a fluorescence spot test, and 100 with G6PD deficiency were selected. Two common variants PON1 (rs662) and C5L2 (rs149572881) were genotyped using polymerase chain reaction followed by restriction fragment length polymorphism analysis. Results: The results showed that the R allele and QR genotype were associated with the Q192R polymorphism in PON1 (R versus Q odds ratio [OR], 1.72; 95% confidence interval [95% CI], 1.1-2.6; p=0.01; and QR versus QQ: OR, 1.98; 95% CI, 1.1-3.6; p=0.02). All the C698T genotypes and allele frequencies in C5L2 were almost similar in both the cases and controls (CT versus CC: OR, 2.04; 95% CI, 0.3-11.4; p=0.40; and T versus C: OR, 2.02; 95% CI, 0.3-11.1; p=0.41). Conclusions: These findings suggest the association of PON1 with G6PD deficiency in the Saudi male population studied herein. Future studies, including correlation analyses between the clinical features and genotypes in populations of different ethnicities, are warranted to confirm the disease association with these genetic mutations.
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Affiliation(s)
- Khalid K Alharbi
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Saud University, PO Box 10219, Riyadh 11433, Kingdom of Saudi Arabia. E-mail.
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Emeka P, Hilal HA, Asif AH, Almukhalaf A, Khan T. An Assessment of Frequent Haemolytic Crisis in G6PD Deficiency Subjects Linked with Chronic Disease States in Al Ahsa Community, Saudi Arabia. Health (London) 2015. [DOI: 10.4236/health.2015.75074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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10
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Alharbi KK, Khan IA. Prevalence of glucose-6-phosphate dehydrogenase deficiency and the role of the A- variant in a Saudi population. J Int Med Res 2014; 42:1161-7. [PMID: 25169987 DOI: 10.1177/0300060514531923] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVES To estimate the prevalence of glucose-6-phosphate dehydrogenase (G6PD) deficiency among Saudi men, and to establish the frequency of the two mutations/polymorphisms associated with the G6PD A- mutation--G to A at nucleotide 202 (G202A) and A to G at nucleotide 376 (A376G)--in those found to have G6PD deficiency. METHODS Blood samples were obtained from healthy male Saudi donors and screened for G6PD deficiency using a fluorescent spot test. Samples from subjects shown to be G6PD deficient and controls were then analysed for the presence of the G202A and A376G mutations on exons 4 and 5, respectively, of the G6PD gene using polymerase chain reaction followed by restriction fragment length polymorphism. RESULT A total of 2100 male subjects were screened; of these, 100 (4.76%) were shown to be G6PD deficient. The G6PD A- mutation (presence of both G202A and A376G) was observed in two (2%) of the 100 subjects with G6PD deficiency. There was no significant difference in the frequency of this mutation between those with G6PD deficiency and controls. CONCLUSION The G6PD A- mutation (G202A and A376G) does not appear to have a role in G6PD deficiency in a Saudi population.
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Affiliation(s)
- Khalid Khalaf Alharbi
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - Imran Ali Khan
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Kingdom of Saudi Arabia
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Pan M, Lin M, Yang L, Wu J, Zhan X, Zhao Y, Wen Y, Liu G, Yang L, Cai Y. Glucose-6-phosphate dehydrogenase (G6PD) gene mutations detection by improved high-resolution DNA melting assay. Mol Biol Rep 2013; 40:3073-82. [PMID: 23275194 DOI: 10.1007/s11033-012-2381-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2012] [Accepted: 12/17/2012] [Indexed: 02/05/2023]
Abstract
Glucose-6-phosphate dehydrogenase (G6PD) deficiency is a common inherited disorder worldwide including southern China. G6PD gene mutations cause deficiency of the enzyme and a large spectrum of diseases. High-resolution DNA melting (HRM) assay was recently introduced as a rapid, inexpensive and effective method for genotyping. But there was a shortcoming of this method that hemizygous and homozygous genotypes were not easily distinguished from wild-types. Here we used improved HRM method for a small-scale screening of G6PD-deficient variants among people of Meizhou region. Then all amplicons were ascertained by direct DNA sequencing. These results indicated that HRM method was a major technical advance for G6PD mutations screening.
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Affiliation(s)
- Meichen Pan
- Medical Laboratory, First Affiliated Hospital of Shantou University Medical College, No. 57 Changping Road, Shantou, 515041 Guangdong, People's Republic of China.
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Kempinska-Podhorodecka A, Knap O, Drozd A, Kaczmarczyk M, Parafiniuk M, Parczewski M, Milkiewicz M. Analysis of the genetic variants of glucose-6-phosphate dehydrogenase in inhabitants of the 4th Nile cataract region in Sudan. Blood Cells Mol Dis 2012; 50:115-8. [PMID: 23146719 DOI: 10.1016/j.bcmd.2012.10.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2012] [Revised: 08/28/2012] [Accepted: 08/28/2012] [Indexed: 10/27/2022]
Abstract
Malaria is one of the most common diseases in the African population. Genetic variance in glucose dehydrogenase 6-phosphate (G6PD) in humans determines the response to malaria exposure. In this study, we aimed to analyze the frequency of two single-nucleotide polymorphisms (G202A and A376G) present in two local tribes of Sudanese Arabs from the region of the 4th Nile cataract in Sudan, the Shagia and Manasir. The polymorphisms in G6PD were analyzed in 217 individuals (126 representatives of the Shagia tribe and 91 of the Manasir tribe). Real-time PCR and RFLP-PCR were utilized to analyze significant differences in the prevalence of alleles and genotypes. The 202A G6P allele frequency was 0.7%, whereas the G202 variant was found in 93.3% of cases. The AA, GA, and GG genotype frequencies for the A376G G6PD codon among the Shagia were 88, 11.1, and 0.9%, respectively; this is similar to the distribution among Manasir tribe representatives (94.5, 3.3, and 2.2%, respectively; OR 3.44 [0.85-16.17], p=0.6). Notably, in north-eastern Sudan the G6PD B (202G/376A) compound genotype frequency was 90.3%, whereas the G6PD A variant (202G/376G) was found in 1.4% of that population. Identification of the G6PD A- variant (202A/376G) in the isolated Shagia tribe provides important information regarding the tribal ancestry. Taken together, the data presented in this study suggest that the Shagia tribe was still nomadic between 4000 and 12,000 years ago. Moreover, the lack of G6PD A- genotype among ethnically diverse Monasir tribesmen indicates a separation of the Shagia from the other tribes in the region of the 4th Nile cataract in Sudan.
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Molecular heterogeneity of glucose-6-phosphate dehydrogenase deficiency in Gaza Strip Palestinians. Blood Cells Mol Dis 2012; 49:152-8. [DOI: 10.1016/j.bcmd.2012.06.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2012] [Accepted: 06/05/2012] [Indexed: 11/23/2022]
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Sirdah M, Reading NS, Perkins SL, Shubair M, Aboud L, Prchal JT. Hemolysis and Mediterranean G6PD mutation (c.563 C>T) and c.1311 C>T polymorphism among Palestinians at Gaza Strip. Blood Cells Mol Dis 2012; 48:203-8. [DOI: 10.1016/j.bcmd.2012.01.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2012] [Accepted: 01/26/2012] [Indexed: 01/08/2023]
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