Indian Journal of Human Genetics
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Year : 2005  |  Volume : 11  |  Issue : 2  |  Page : 80-83

Molecular characterization of mutations causing β -thalassemia in Faisalabad Pakistan using the amplification refractory mutation system (ARMS-PCR)

Health Biotechnology Division, National Institute for Biotechnology & Genetic Engineering (NIBGE), Faisalabad, Pakistan

Correspondence Address:
Shahid M Baig
Human Molecular Genetics Labortory,Health Biotechnology Division, NIBGE, P.O. Box 577, FSD
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0971-6866.16806

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BACKGROUND : Faisalabad is the third biggest city of Pakistan. Majority of the population is Punjabi while other ethnic groups are in minority. AIMS : The present study was undertaken to find the mutations causing β -thalassemia in Faisalabad Pakistan. MATERIALS AND METHODS : A total of 285 β -globin alleles from 143 unrelated families having at least one transfusion-dependent child were analyzed by using amplification refractory mutation system (ARMS-PCR). RESULTS : FSC-8/9 (+G) and IVS-I-5 (G ®C) were the most common mutations. The allele frequency for FSC-8/9 (+G) was 38.59% while frequency for IVS-I-5 (G ®C) was 37.89%. The high frequency (76.48%) of IVS-I-5 (G ®C) and FSC-8/9 (+G) on various alleles provides a strong evidence of intermarriages. CONCLUSIONS : By using ARMS-PCR, the mutations were successfully characterized in 95.79% of subjects, while 4.21% remain to be characterized. This study will facilitate the implementations of genetic counseling and prenatal diagnosis in the population of Faisalabad.

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