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Ragia G, Biziota E, Koukaki T, Amarantidis K, Manolopoulos VG. MIR27A rs895819 TC genotype increases risk of fluoropyrimidine-induced severe toxicity independently of DPYD variations. Pharmacogenomics 2024; 25:59-67. [PMID: 38353109 DOI: 10.2217/pgs-2023-0223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2024] Open
Abstract
Aim: MicroRNA 27a (miR-27a) regulates post-transcriptionally DPD activity. We have analyzed the association of MIR27A rs895819T>C variation, that modulates miR-27a expression, with fluropyrimidine-induced toxicity. Materials & methods: MIR27A rs895819T>C genotyping was conducted by TaqMan® allelic discrimination assay in 313 FP-treated cancer patients. Results: In overdominance (TC vs TT + CC), TC genotype was associated with grade 3-4 toxicity (p = 0.002), any grade toxicity (p = 0.052), and delayed drug administration or therapy discontinuation (p = 0.038). Odds of grade 3-4 toxicity were increased by both DPYD deficiency (OR: 8.923; p = 0.006) and MIR27A rs895819 TC genotype (OR: 3.865; p = 0.002). Conclusion: MIR27A rs895819 TC genotype is an independent risk factor for fluoropyrimidine-associated toxicity in the Greek population. Thus, MIR27A rs895819TC patients can be closely monitored for fluoropyrimidine-induced severe toxicity.
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Affiliation(s)
- Georgia Ragia
- Laboratory of Pharmacology, Medical School, Democritus University of Thrace, Alexandroupolis, 68100, Greece
- Individualised Medicine & Pharmacological Research Solutions Center (IMPReS), Alexandroupolis, Greece
| | - Eirini Biziota
- Department of Medical Oncology, University General Hospital of Alexandroupolis, Medical School, Democritus University of Thrace, Alexandroupolis, 68100, Greece
| | - Triantafyllia Koukaki
- Department of Medical Oncology, University General Hospital of Alexandroupolis, Medical School, Democritus University of Thrace, Alexandroupolis, 68100, Greece
| | - Kyriakos Amarantidis
- Department of Medical Oncology, University General Hospital of Alexandroupolis, Medical School, Democritus University of Thrace, Alexandroupolis, 68100, Greece
| | - Vangelis G Manolopoulos
- Laboratory of Pharmacology, Medical School, Democritus University of Thrace, Alexandroupolis, 68100, Greece
- Individualised Medicine & Pharmacological Research Solutions Center (IMPReS), Alexandroupolis, Greece
- Clinical Pharmacology Unit, Academic General Hospital of Alexandroupolis, Alexandroupolis, Greece
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Shankaran ZS, Walter CEJ, Prakash N, Ramachandiran K, C GPD, Johnson T. Investigating the role of microRNA-27a gene polymorphisms and its interactive effect with risk factors in gastrointestinal cancers. Heliyon 2020; 6:e03565. [PMID: 32190766 PMCID: PMC7068059 DOI: 10.1016/j.heliyon.2020.e03565] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 02/04/2020] [Accepted: 03/06/2020] [Indexed: 12/24/2022] Open
Abstract
Gastrointestinal (GI) cancers are known to have a high incidence worldwide and require an early diagnosis to successfully treat them, providing higher survival rates and better quality of life for the patients. MicroRNA-27a is a well-known oncogene that plays a significant role in various GI cancers. It is known to upregulate the expression of numerous oncogenes leading to cancer progression. The miR-27a harbors two polymorphisms rs895819 and rs11671784 which alter the disease susceptibility by interfering with the maturation and expression of miR-27a. In the current study, we aimed to investigate the role played by these polymorphisms in cancers of the GI tract. We conducted a case-control study with 210 GI cancer cases and 210 cancer-free controls to analyze the effect of these polymorphisms. The rs895819 polymorphism was genotyped using PCR-RFLP, and rs11671784 was genotyped on a MassARRAY platform. The association analysis failed to bring out any significant association of the polymorphisms with GI cancer risk. However, genotype-phenotype interaction analysis revealed that the rs895819 was found to increase the risk GI cancers along with the presence of risk factors such as socioeconomic status, diabetes mellitus, hypertension, alcohol consumption, and tobacco chewing.
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Affiliation(s)
- Zioni Sangeetha Shankaran
- Department of Biotechnology, Sri Ramachandra Institute of Higher Education & Research (Deemed to be University), Chennai, India
| | - Charles Emmanuel Jebaraj Walter
- Department of Biotechnology, Sri Ramachandra Institute of Higher Education & Research (Deemed to be University), Chennai, India
| | - Nandini Prakash
- Department of Biotechnology, Sri Ramachandra Institute of Higher Education & Research (Deemed to be University), Chennai, India
| | - Kotteeswaran Ramachandiran
- Department of Biotechnology, Sri Ramachandra Institute of Higher Education & Research (Deemed to be University), Chennai, India
| | - George Priya Doss C
- Department of Integrative Biology, School of Bio Sciences and Technology, Vellore Institute of Technology, Vellore, India
| | - Thanka Johnson
- Department of Pathology, Sri Ramachandra Institute of Higher Education & Research (Deemed to be University), Chennai, India
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Wah ST, Hananantachai H, Patarapotikul J, Ohashi J, Naka I, Nuchnoi P. microRNA-27a and microRNA-146a SNP in cerebral malaria. Mol Genet Genomic Med 2019; 7:e00529. [PMID: 30599464 PMCID: PMC6393659 DOI: 10.1002/mgg3.529] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 10/06/2018] [Accepted: 10/25/2018] [Indexed: 12/19/2022] Open
Abstract
Background During Plasmodium falciparum infection, microRNA expression alters in brain tissue of mice with cerebral malaria compared to noninfected controls. MicroRNA regulates gene expression post‐transcriptionally to influence biological processes. Cerebral malaria pathology caused mainly by the immunological disorder. We hypothesize that single‐nucleotide polymorphism in a microRNA influences microRNA biogenesis or target gene recognition and altering susceptibility to cerebral malaria. Methods We performed a literature search based on immunological mechanism and applied microRNA‐related single‐nucleotide polymorphisms database to examine candidate microRNA SNPs possibly responsible for cerebral malaria. MicroRNA‐27a and microRNA‐146a are supposed to involve in cerebral malaria pathology. To assess the relationship of microRNA SNP to cerebral malaria outcome, we performed TaqMan Genotyping Assays in 110 cerebral malaria and 207 uncomplicated malaria cases for three candidate microRNA SNPs (rs895819 of microRNA‐27a, rs57095329 and rs2910164 of microRNA‐146a). Results Our study detected no significant difference in genotype and allele frequency of individual microRNA SNPs as well as in haplotypes of microRNA‐146a between these two groups of malaria patients in Thailand. Hardy–Weinberg disequilibrium of rs57095329 in the cerebral malaria group showed a heterozygous excess which might be due to natural selection. Conclusion Our data supported that the candidate microRNA SNPs have no major role to develop cerebral malaria.
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Affiliation(s)
- Saw Thu Wah
- Department of Clinical Microscopy, Faculty of Medical Technology, Mahidol University, Bangkok, Thailand.,Department of Medical Laboratory Technology, University of Medical Technology, Yangon, Myanmar
| | | | | | - Jun Ohashi
- Graduate School of Science, The University of Tokyo, Tokyo, Japan
| | - Izumi Naka
- Graduate School of Science, The University of Tokyo, Tokyo, Japan
| | - Pornlada Nuchnoi
- Department of Clinical Microscopy, Faculty of Medical Technology, Mahidol University, Bangkok, Thailand.,Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Bangkok, Thailand
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Zhang H, Zhang Y, Zhao X, Ma X, Yan W, Wang W, Zhao Z, Yang Q, Sun X, Luan H, Gao X, Zhang S. Association of two microRNA polymorphisms miR-27 rs895819 and miR-423 rs6505162 with the risk of cancer. Oncotarget 2017; 8:46969-80. [PMID: 28415619 DOI: 10.18632/oncotarget.16443] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 02/27/2017] [Indexed: 02/06/2023] Open
Abstract
Many studies have been conducted to investigate the association between miR-27 rs895819 A > G and miR-423 rs6505162 C > A and cancer risk; however, the results are not consistent. In order to acquire a more precise assessment of the correlation, we performed this meta-analysis. We searched PubMed, EMBASE and Web of Science databases to identify eligible studies. Pooled odds ratios (ORs) and 95% confidence intervals (CIs) were applied to evaluate the correlation of these two microRNA polymorphisms with cancer risk. Forty-five eligible studies from thirty-five articles were included in our analysis. The results showed that rs895819 was associated with a decreased cancer risk in Caucasians (AG vs. AA: OR = 0.87, 95% CI = 0.79-0.96; GG+AG vs. AA: OR = 0.89, 95% CI = 0.81-0.98). When grouped by ethnicity, an increased risk was observed in colorectal cancer (G vs. A: OR = 1.19, 95% CI = 1.08-1.32; GG vs. AA: OR = 1.58, 95% CI = 1.28-1.96; GG vs. AG+AA: OR = 1.58, 95% CI = 1.29-1.93), while a decreased risk was found in breast cancer (G vs. A: OR = 0.93, 95% CI = 0.87-0.99; GG+AG vs. AA: OR = 0.91, 95% CI = 0.83-0.99). For rs6505162, a significantly decreased cancer risk was observed in lung cancer under all five genetic models. To summarize, our results indicated that rs895819 was a protective factor for cancer in Caucasians and could increase colorectal cancer risk but decrease breast cancer risk. Moreover, rs6505162 was a protective factor for lung cancer.
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Cai MY, Cheng J, Zhou MY, Liang LL, Lian SM, Xie XS, Xu S, Liu X, Xiong XD. The association between pre-miR-27a rs895819 polymorphism and myocardial infarction risk in a Chinese Han population. Lipids Health Dis 2018; 17:7. [PMID: 29304813 PMCID: PMC5756394 DOI: 10.1186/s12944-017-0652-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2017] [Accepted: 12/27/2017] [Indexed: 12/21/2022] Open
Abstract
Background Accumulating evidences have shown that miRNAs are directly or indirectly involved in a variety of biological processes, and closely associated with diverse human diseases, including cardiovascular diseases. SNPs locating within pri/pre-miRNA can affect miRNA processing and binding ability of target genes. MiR-27a, miR-26a-1 miR-100, miR-126 and miR-218 were reported to be associated with pathogenesis of myocardial infarction (MI). Here we aimed to evaluate the potential association of five polymorphisms in these pri/pre-miRNAs with individual susceptibility to MI in a Chinese Han population. Methods Genotyping was performed in 287 MI cases and 646 control subjects using polymerase chain reaction-ligase detection reaction (PCR-LDR) method. The association of these SNPs with MI risk was performed with SPSS software. Results In a logistic regression analysis, we found that AG heterozygote (OR = 0.40, 95% CI = 0.21-0.76, Pa = 0.005) or AA homozygote (OR = 0.40, 95% CI = 0.22-0.75, Pa = 0.004) of pre-miR-27a rs895819 had a reduced susceptibility to MI in comparison with GG homozygote. Similarly, a reduced risk of MI was detected when the AG and AA genotypes were combined (OR = 0.40, 95% CI = 0.22-0.74, Pa = 0.003). However, no significant association between pri-miR-26a-1 pri-miR-100, pri-miR-126 and pri-miR-218 polymorphisms and MI risk was observed under the allelic and established genetic models. Further stratified analysis of pre-miR-27a rs895819 revealed a more significant association of AG + AA genotypes with MI risk among younger, male and smoking subjects. Interestingly, AG and AA genotypes of the rs895819 polymorphism conferred about 0.17 mmol/L and 0.18 mmol/L increase in HDL-C levels compared to GG genotype. Conclusions Our findings suggest that the pre-miR-27a rs895819 polymorphism is associated with MI susceptibility in the Chinese Han population, which probably due to influence the HDL-C levels. Electronic supplementary material The online version of this article (10.1186/s12944-017-0652-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Meng-Yun Cai
- Institute of Aging Research, Guangdong Medical University, Xin Cheng Avenue 1#, Songshan Lake, Dongguan, 523808, People's Republic of China.,Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, People's Republic of China
| | - Jie Cheng
- Institute of Aging Research, Guangdong Medical University, Xin Cheng Avenue 1#, Songshan Lake, Dongguan, 523808, People's Republic of China.,Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, People's Republic of China.,Department of Clinical Laboratory, The Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Meng-Yuan Zhou
- Institute of Aging Research, Guangdong Medical University, Xin Cheng Avenue 1#, Songshan Lake, Dongguan, 523808, People's Republic of China.,Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, People's Republic of China
| | - Li-Li Liang
- Institute of Aging Research, Guangdong Medical University, Xin Cheng Avenue 1#, Songshan Lake, Dongguan, 523808, People's Republic of China.,Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, People's Republic of China
| | - Si-Min Lian
- Institute of Aging Research, Guangdong Medical University, Xin Cheng Avenue 1#, Songshan Lake, Dongguan, 523808, People's Republic of China.,Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, People's Republic of China
| | - Xiao-Shan Xie
- Institute of Aging Research, Guangdong Medical University, Xin Cheng Avenue 1#, Songshan Lake, Dongguan, 523808, People's Republic of China.,Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, People's Republic of China
| | - Shun Xu
- Institute of Aging Research, Guangdong Medical University, Xin Cheng Avenue 1#, Songshan Lake, Dongguan, 523808, People's Republic of China.,Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, People's Republic of China
| | - Xinguang Liu
- Institute of Aging Research, Guangdong Medical University, Xin Cheng Avenue 1#, Songshan Lake, Dongguan, 523808, People's Republic of China.,Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, People's Republic of China.,Institute of Biochemistry & Molecular Biology, Guangdong Medical University, Zhanjiang, People's Republic of China
| | - Xing-Dong Xiong
- Institute of Aging Research, Guangdong Medical University, Xin Cheng Avenue 1#, Songshan Lake, Dongguan, 523808, People's Republic of China. .,Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, People's Republic of China. .,Institute of Biochemistry & Molecular Biology, Guangdong Medical University, Zhanjiang, People's Republic of China.
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Maharaj NR, Ramkaran P, Pillay S, Chuturgoon AA. microRNA-27a rs895819 is associated with obesity in HIV infected preeclamptic Black South African women on HAART. BMC Med Genet 2016; 17:92. [PMID: 27919232 PMCID: PMC5139039 DOI: 10.1186/s12881-016-0353-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Accepted: 11/24/2016] [Indexed: 11/21/2022]
Abstract
Background Preeclampsia (PE) and HIV/AIDS present a major health challenge globally. South Africa has the highest disease burden of both HIV/AIDS and PE in the world. Despite extensive research, the pathophysiology of these conditions is not completely understood, however a genetic predisposition in women may affect susceptibility. MiRNA-27a regulates adipogenesis and glucose metabolism. A single nucleotide polymorphism (SNP) in miRNA-27a (rs895819T > C) has shown to have disparate effects in various populations. This study investigated the frequency of rs895819 in pregnant normotensive and preeclamptic Black South African (SA) women. Methods Enrollment into the study included: normotensive (n = 95; 45 HIV+; 80 analysed for rs895819T > C, age range: 16–46 years) and PE patients (n = 98; 45 HIV+; 56 analysed for rs895819T > C), age range: 16–42 years). DNA was isolated from peripheral blood mononuclear cells (PBMC). Genotyping of miRNA-27a rs895819 was detected using a TaqMan® SNP Genotyping assay. Results We did not find a significant association of miR-27a polymorphism with PE susceptibility in our data. However, in the subgroup analysis (based in HIV status), the variant genotypes (TC/CC) were associated with higher body mass index (BMI) among PE women (32.57 vs. 29.25, p = 0.064), significantly in the presence of HIV infection (33.47 vs. 27.8, p = 0.005). Conclusion The results of this study suggests that miR-27a rs895819 may not be associated with PE susceptibility; however, the miR-27a TC/CC genotype increases susceptibility to elevated BMI in PE, which may be significantly influenced by co-morbid HIV infection among pregnant women on HAART.
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Affiliation(s)
- Niren Ray Maharaj
- Department of Obstetrics and Gynaecology, Prince Mshiyeni Memorial Hospital, Durban, South Africa.,Discipline of Medical Biochemistry and Chemical Pathology, School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Howard College Campus, George Campbell Building - South Entrance, 3rd Floor, Kind George V Avenue, Durban, South Africa
| | - Prithiksha Ramkaran
- Discipline of Medical Biochemistry and Chemical Pathology, School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Howard College Campus, George Campbell Building - South Entrance, 3rd Floor, Kind George V Avenue, Durban, South Africa
| | - Siddharthiya Pillay
- Discipline of Medical Biochemistry and Chemical Pathology, School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Howard College Campus, George Campbell Building - South Entrance, 3rd Floor, Kind George V Avenue, Durban, South Africa
| | - Anil Amichund Chuturgoon
- Discipline of Medical Biochemistry and Chemical Pathology, School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Howard College Campus, George Campbell Building - South Entrance, 3rd Floor, Kind George V Avenue, Durban, South Africa.
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Jiang Y, Lin DH, Xu JP, Chen WX, Zheng SJ, Song L. Genotype GG of rs895819 Functional Polymorphism Within miR-27a Might Increase Genetic Susceptibility to Colorectal Cancer in Han Chinese Population. J Clin Lab Anal 2015; 30:351-5. [PMID: 26302683 DOI: 10.1002/jcla.21862] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Accepted: 06/27/2015] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND MicroRNA-27a (miR-27a) is supposed to be an oncogene in various types of cancers, and genetic variation of miR-27a might result in aberrant expression and abnormal second structure of mature-miR-27a, contributing to elevated genetic risk and poor prognosis for colorectal cancer (CRC). METHODS In order to explore the possible association between rs895819 within miR-27a and CRC in Han Chinese population, we investigated the genotype distributions of rs895819 in 508 CRC cases and 562 healthy check-up controls using TaqMan genotype discrimination system, and analyzed the possible association between them. Odds ratio (OR) and 95% confidential interval (95% CI) were used to assess the strength between allele and genotype of the locus and risk of CRC. RESULTS In our study, we found that genotype GG of rs895819 was significantly associated with an increased risk for CRC (17.1% vs. 11.6%, adjusted OR = 1.546, 95% CI = 1.070-2.236), and allele A carrier (AA/AG) was significantly associated with a decreased risk for CRC (82.9% vs. 89.4%, adjusted OR = 0.63, 95% CI = 0.446-0.893). In addition, a significant association was observed between genotype GG and larger tumor size (>5 cm; P < 0.001), and allele G was significantly associated with higher pathological stage (TNM-III) (P = 0.008). CONCLUSION These results indicated that miR-27a might be involved in the development and progression of CRC, genotype GG within rs895819 might be a genetic susceptible factor for CRC. Further multicentral, large sample size, and well-designed epidemiological study as well as functional study are warrant to verify our findings.
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Affiliation(s)
- Yu Jiang
- Department of Clinical Laboratory, Fuzhou Second Hospital, Xiamen University, Fuzhou, Fujian, P.R. China
| | - Dong-Hong Lin
- Department of Clinical Laboratory Medicine, Fujian Medical University, Taijiang, Fuzhou, P.R. China
| | - Jian-Ping Xu
- Department of Clinical Laboratory Medicine, Fujian Medical University, Taijiang, Fuzhou, P.R. China
| | - Wen-Xu Chen
- Department of Clinical Laboratory, Fuzhou Second Hospital, Xiamen University, Fuzhou, Fujian, P.R. China
| | - Shu-Jian Zheng
- Oncological Surgery, Fuzhou Second Hospital, Xiamen University, Fuzhou, Fujian, P.R. China
| | - Lin Song
- Oncological Surgery, Fuzhou Second Hospital, Xiamen University, Fuzhou, Fujian, P.R. China
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Zhang N, Huo Q, Wang X, Chen X, Long L, Jiang L, Ma T, Yang Q. A genetic variant in pre-miR-27a is associated with a reduced breast cancer risk in younger Chinese population. Gene 2013; 529:125-30. [PMID: 23954879 DOI: 10.1016/j.gene.2013.07.041] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2013] [Revised: 07/02/2013] [Accepted: 07/08/2013] [Indexed: 01/02/2023]
Abstract
Accumulating evidence has indicated that single nucleotide polymorphisms (SNPs) in miRNA precursors may have an effect on miRNA expression levels. Recently, an important A to G transition SNP in pre-mir-27a (rs895819) was identified. Previous studies have investigated the role of rs895819 in cancer risk, but the results remain contradictory, rather than conclusive. The present study aimed to evaluate the association of rs895819 with sporadic breast cancer susceptibility, clinicopathological characteristics and prognosis. We first analyzed the influence of rs895819 on the miR-27a expression level and determined that miR-27a expression was significantly lower in samples with the AG/GG genotype compared to samples with the AA genotype (p=0.022). Further investigation revealed that subjects with the G allele exhibited a significantly decreased risk of breast cancer relative to subjects carrying the A allele among the younger population (adjusted OR=0.628, 95% confidence interval 0.410-0.961; p=0.032). Moreover, significant associations between the presence of rs895819 and the histological grade and estrogen status of breast cancers were observed among the older group. However, the SNP did not influence the survival rate of patients with breast cancer. In conclusion, our results suggest that the SNP rs895819 may serve as a risk factor for breast cancer in younger Chinese populations; however, larger population-based studies are needed to validate these findings.
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Affiliation(s)
- Ning Zhang
- Department of Breast Surgery, Qilu Hospital, Shandong University, Shandong, China
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