Frequency distribution of <i>GSTM1</i> and <i>GSTT1</i> null allele in Pakistani population and risk of disease incidence. Shaikh, R. S., Amir, M., Masood, A. I., Sohail, A., Athar, H., Siraj, S., Ali, M., & Anjam, M. S. Environmental Toxicology and Pharmacology, 30(1):76–79, July, 2010. ![Frequency distribution of <i>GSTM1</i> and <i>GSTT1</i> null allele in Pakistani population and risk of disease incidence [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex Glutathione-S-transferases, GSTM1 and GSTT1 play a significant role in detoxification and bioactivation of a broad range of xenobiotic compounds known to be mutagenic and/or carcinogenic. Deletion polymorphisms of these glutathione transferases (GSTM1 and GSTT1) predispose individuals to environmental carcinogenic compounds. Although a number of studies have shown the relationship between GSTM1 and/or GSTT1 deletion polymorphism and different cancers, these findings cannot be extrapolated to other populations due to intra- and inter-ethnic variability. In order to assess the impact of differential ethnicity on the occurrence of different cancers in local population due to GSTM1, or GSTT1 deletion polymorphism, 111 healthy male and female individuals of different age groups from Southern Punjab, Pakistan were genotyped using a multiplex polymerase chain reaction. From the results it is obvious that null alleles of GSTM1 and GSTT1 genes were found in 45% and 23% individuals, respectively. In 5% of individuals’ simultaneous deletion of both GSTM1 and GSTT1 genes were observed. Frequency of GSTM1 null allele is in concordance with those documented for Chinese, Caucasians, Mongolian, and Japanese populations. However, a significantly higher frequency for GSTT1 null was reported in Chinese and Japanese population as compared to Pakistani population. It is the first ever report on frequency of GSTM1 and GSTT1 null allele in Pakistani population which demonstrate the impact of ethnicity and provide basis for future epidemiological and clinical studies.
@article{shaikh_frequency_2010,
title = {Frequency distribution of \textit{{GSTM1}} and \textit{{GSTT1}} null allele in {Pakistani} population and risk of disease incidence},
volume = {30},
issn = {1382-6689},
url = {https://www.sciencedirect.com/science/article/pii/S1382668910000852},
doi = {10.1016/j.etap.2010.04.002},
abstract = {Glutathione-S-transferases, GSTM1 and GSTT1 play a significant role in detoxification and bioactivation of a broad range of xenobiotic compounds known to be mutagenic and/or carcinogenic. Deletion polymorphisms of these glutathione transferases (GSTM1 and GSTT1) predispose individuals to environmental carcinogenic compounds. Although a number of studies have shown the relationship between GSTM1 and/or GSTT1 deletion polymorphism and different cancers, these findings cannot be extrapolated to other populations due to intra- and inter-ethnic variability. In order to assess the impact of differential ethnicity on the occurrence of different cancers in local population due to GSTM1, or GSTT1 deletion polymorphism, 111 healthy male and female individuals of different age groups from Southern Punjab, Pakistan were genotyped using a multiplex polymerase chain reaction. From the results it is obvious that null alleles of GSTM1 and GSTT1 genes were found in 45\% and 23\% individuals, respectively. In 5\% of individuals’ simultaneous deletion of both GSTM1 and GSTT1 genes were observed. Frequency of GSTM1 null allele is in concordance with those documented for Chinese, Caucasians, Mongolian, and Japanese populations. However, a significantly higher frequency for GSTT1 null was reported in Chinese and Japanese population as compared to Pakistani population. It is the first ever report on frequency of GSTM1 and GSTT1 null allele in Pakistani population which demonstrate the impact of ethnicity and provide basis for future epidemiological and clinical studies.},
number = {1},
urldate = {2024-08-30},
journal = {Environmental Toxicology and Pharmacology},
author = {Shaikh, Rehan Sadiq and Amir, Muhammad and Masood, Ahmed Ijaz and Sohail, Asma and Athar, Habib-ur-Rehman and Siraj, Sami and Ali, Muhammad and Anjam, Muhammad Shahzad},
month = jul,
year = {2010},
keywords = {Genetic susceptibility, Inter-ethnic variability, Null allele polymorphism, Xenobiotic metabolizing enzymes},
pages = {76--79},
}
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Although a number of studies have shown the relationship between GSTM1 and/or GSTT1 deletion polymorphism and different cancers, these findings cannot be extrapolated to other populations due to intra- and inter-ethnic variability. In order to assess the impact of differential ethnicity on the occurrence of different cancers in local population due to GSTM1, or GSTT1 deletion polymorphism, 111 healthy male and female individuals of different age groups from Southern Punjab, Pakistan were genotyped using a multiplex polymerase chain reaction. From the results it is obvious that null alleles of GSTM1 and GSTT1 genes were found in 45% and 23% individuals, respectively. In 5% of individuals’ simultaneous deletion of both GSTM1 and GSTT1 genes were observed. Frequency of GSTM1 null allele is in concordance with those documented for Chinese, Caucasians, Mongolian, and Japanese populations. 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