Genetic Variations in Xenobiotic Genes and Thyroid Cancer Risk
Author Information
Author(s): Siraj Abdul K, Ibrahim Muna, Al-Rasheed Maha, Abubaker Jehad, Bu Rong, Siddiqui Shakaib U, Al-Dayel Fouad, Al-Sanea Osama, Al-Nuaim Abdulrahman, Uddin Shahab, Al-Kuraya Khawla
Primary Institution: King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
Hypothesis
Polymorphisms of selected xenobiotic genes may be associated with the risk of developing thyroid cancer.
Conclusion
Certain genetic polymorphisms in xenobiotic metabolizing enzymes are associated with an increased risk of papillary thyroid cancer in the Saudi Arabian population.
Supporting Evidence
- CYP1A1 C4887A genotypes CA and AA showed significant differences in thyroid cancer risk compared to wild type.
- GSTT1 null genotype was associated with a 3.48 times higher risk of developing thyroid cancer.
- GSTM1 null genotype showed a protective effect against thyroid cancer.
- Statistical significance was assessed using Fisher's exact test.
- Odds ratios indicated increased risk for certain genotypes compared to controls.
- Genetic polymorphisms in xenobiotic metabolizing enzymes may modify individual susceptibility to thyroid cancer.
- Findings suggest the need for further studies to confirm these associations.
- Study provides preliminary data on genetic susceptibility to thyroid cancer in the Saudi population.
Takeaway
Some people have genes that make them more likely to get thyroid cancer, and this study looked at those genes in people from Saudi Arabia.
Methodology
A hospital-based case-control study analyzing genetic polymorphisms in 223 thyroid cancer cases and 513 controls using PCR-RELP.
Potential Biases
Potential bias due to the predominance of male blood donors in the control group.
Limitations
The study's control group had a gender imbalance and used archival samples, which may affect the results.
Participant Demographics
Participants included 223 newly presenting and untreated Arabian patients with papillary thyroid carcinoma and 513 healthy controls, mostly Saudi Arabians.
Statistical Information
P-Value
p < 0.0001
Confidence Interval
95% CI = 1.36–2.70
Statistical Significance
p<0.0001
Digital Object Identifier (DOI)
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