Abstract Title:

Phthalate exposure, flavonoid consumption and breast cancer risk among Mexican women.

Abstract Source:

Environ Int. 2016 Nov ;96:167-172. Epub 2016 Aug 28. PMID: 27690147

Abstract Author(s):

Ángel Mérida-Ortega, César Hernández-Alcaraz, Raúl U Hernández-Ramírez, Angélica García-Martínez, Belem Trejo-Valdivia, Aarón Salinas-Rodríguez, Katherine Svensson, Mariano E Cebrián, Francisco Franco-Marina, Lizbeth López-Carrillo

Article Affiliation:

Ángel Mérida-Ortega


OBJECTIVE: To evaluate if selected phthalate exposure and flavonoid intake interact on breast cancer (BC) risk.

MATERIAL AND METHODS: Interviews and urine samples were obtained from 233 women with histologically confirmed BC and 221 healthy controls matched by age and place of residence, from various states of northern Mexico. Urinary metabolites concentrations of diethyl phthalate (DEP), butyl benzyl phthalate (BBzP) and dioctyl phthalate (DOP) were determined by solid-phase extraction coupled with high-performance liquid chromatography/isotope dilution/tandem mass spectrometry. Using a semiquantitative food frequency questionnaire, consumption of five types of flavonoids (anthocyanidins, flavan-3-ols, flavanones, flavones and flavonols) was estimated according to three food groups: vegetables, fruits and legumes-oil seeds.

RESULTS: A higher intake of anthocyanidins and flavan-3-ols (from vegetables), synergistically increased the negative association between BBzP and BC. No other significant flavonoid-phthalate multiplicative interactions on the risk for BC were found.

CONCLUSION: The consumption of some flavonoids may interact with exposure to phthalates on the risk of BC. Epidemiological and underlying mechanisms information is still insufficient and requires further investigations.

Study Type : Human Study

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