Association Between <i>Paraoxonase1</i> (<i>Q192R</i> and <i>L55M</i>) Gene Polymorphisms and Risk of Breast Cancer: A Meta-analysis of 12 Studies
| Author | Niloofar Tolooi | en |
| Orcid | Niloofar Tolooi [0000-0003-2091-1293] | en |
| Issued Date | 2021-12-31 | en |
| Abstract | Background: The paraoxonase1 gene (PON1) is part of the paraoxonase family of multifactorial antioxidants (EC 3.1.1.2). The functional single-nucleotide polymorphisms L55M and Q192R are located in the coding site of this gene. The association between these polymorphisms and breast cancer risk has been investigated, with contradictory results. Objectives: A meta-analysis was done to find the association between PON1 (L55M and Q192R) gene polymorphisms and breast cancer risk. Methods: We searched Embase, Pubmed, and Web of Science for related articles. Twelve eligible studies before December 2021 were selected. Statistical analysis was done by STATA 14.0. Result: We summarized 12 studies of L55M and Q192R polymorphisms and breast cancer risk, involving 5,769 subjects (2,519 controls and 3,250 patients). In all genetic models, PON1-L55M polymorphisms were significantly associated with breast cancer risk. Besides, PON1-Q192R polymorphisms decreased breast cancer risk. The PON1-Q192R allele reduced the cancer risk, particularly breast cancer (OR (R vs. Q): 0.7932). However, an association was found between the PON1-L55M allele and increased breast cancer risk (OR (M vs. L): 1.6041). Discussion: The results of 11 out of 12 studies were consistent with our results. In a non-conforming study, this was probably due to errors in conducting experiments. Nonetheless, well-designed studies with more samples are needed to confirm our findings at protein levels. | en |
| DOI | https://doi.org/10.5812/jjcmb.121983 | en |
| Keyword | Polymorphism | en |
| Keyword | <i>Paraoxonase1</i> | en |
| Keyword | <i>Q192R</i> | en |
| Keyword | <i>L55M</i> | en |
| Keyword | Meta-analysis | en |
| Keyword | Breast Cancer | en |
| Publisher | Brieflands | en |
| Title | Association Between <i>Paraoxonase1</i> (<i>Q192R</i> and <i>L55M</i>) Gene Polymorphisms and Risk of Breast Cancer: A Meta-analysis of 12 Studies | en |
| Type | Systematic Review | en |