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Teng C, Ren R, Liu Z, Wang J, Shi S, Kang YE, Koo BS, Lu W, Shan Y. C15:0 and C17:0 partially mediate the association of milk and dairy products with bladder cancer risk. J Dairy Sci 2024; 107:2586-2605. [PMID: 38056566 DOI: 10.3168/jds.2023-24186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 11/02/2023] [Indexed: 12/08/2023]
Abstract
The relationship between saturated fatty acids (SFA) and bladder cancer (BC) risk has been conflicting. Our aim was to investigate the relationship between erythrocyte membrane SFA and BC risk. A total of 404 participants were enrolled in the study (including 112 cases and 292 controls). A validated food frequency questionnaire was used to assess the food intake. The constitutive composition of fatty acids in the erythrocyte membrane was measured by gas chromatography. After adjustment for BC risk factors, SFA had no significant association with BC risk. However, C18:0 was positively linked with BC risk with an odds ratio (OR; 95% CI) of 2.99 (1.37-6.53). In contrast, very-long-chain saturated fatty acids (VLCSFA), especially C24:0, were negatively related to BC risk with an OR (95% CI) of 0.28 (0.12-0.65) for VLCSFA and 0.33 (0.15-0.75) for C24:0. Higher total odd-chain SFA (C15:0 and C17:0) were associated with a lower risk of BC with OR (95% CI) of 0.18 (0.076-0.44), 0.18 (0.068-0.47), 0.34 (0.14-0.81), respectively. After subgroup analysis, the protective effects C15:0 and C17:0 were still remained. Receiver operating characteristic analysis displayed that the combination of C15:0 and C17:0 indexes increased the accurate predictive rate of BC risk. Further mediation effect analysis showed that C15:0 and C17:0 could be used as partial mediation effectors for milk and dairy products and bladder carcinogenesis. Overall, the combination of odd-chain SFA (C15:0 and C17:0) in the erythrocyte membrane could serve as a reliable mediator and predictor, indicating a relationship between a high intake of milk and dairy products and a lower risk of BC.
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Affiliation(s)
- Chunying Teng
- Department of Food Science and Engineering, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Rui Ren
- School of Public Health and Management, Wenzhou Medical University, Wenzhou 325000, China; Southern Zhejiang Institute of Radiation Medicine and Nuclear Technology, Wenzhou 325000, China
| | - Zhipeng Liu
- School of Public Health and Management, Wenzhou Medical University, Wenzhou 325000, China
| | - Jiaxin Wang
- School of Public Health and Management, Wenzhou Medical University, Wenzhou 325000, China
| | - Shengchao Shi
- School of Public Health and Management, Wenzhou Medical University, Wenzhou 325000, China
| | - Yea Eun Kang
- Department of Internal Medicine, College of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
| | - Bon Seok Koo
- Department of Otolaryngology-Head and Neck Surgery, Research Institute for Medical Science, Chungnam National University School of Medicine, Daejeon 35015, Republic of Korea
| | - Weihong Lu
- Department of Food Science and Engineering, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China.
| | - Yujuan Shan
- School of Public Health and Management, Wenzhou Medical University, Wenzhou 325000, China; Southern Zhejiang Institute of Radiation Medicine and Nuclear Technology, Wenzhou 325000, China.
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