@article{fdi:010086978, title = {{N}umber of lifetime menses increases breast cancer occurrence in postmenopausal women at high familial risk}, author = {{B}ieuville, {M}. and {F}augere, {D}. and {G}alibert, {V}. and {H}enard, {M}. and {D}ujon, {A}. {M}. and {U}jvari, {B}. and {P}ujol, {P}. and {R}oche, {B}enjamin and {T}homas, {F}.}, editor = {}, language = {{ENG}}, abstract = {{I}t is increasingly thought that part of human susceptibility to cancer is the result of evolutionary mismatches: our ancestors evolved cancer suppression mechanisms in a world largely different from our modern environments. {I}n that context, it has been shown in cohorts from general {W}estern populations that reproductive traits modulate breast cancer risk. {O}verall, the more menses women experience, the more at risk they are to develop postmenopausal breast cancer. {T}his points towards an evolutionary mismatch but brings the question whether the reproductive pattern also modulates the breast cancer risk in menopausal women at high familial risk. {W}e thus studied the influence of menses on breast cancer risk in a case-control study of 90 postmenopausal women (including {BRCA}1/2 and non {BRCA}1/2) nested within a cohort at high familial risk. {W}e tested the association of the lifetime number of menses and the number of menses before first full-term pregnancy with postmenopausal breast cancer risk using {C}ox survival models. {W}e showed that the total lifetime number of menses was significantly associated with postmenopausal breast cancer risk and associated with a quicker onset of breast cancer after menopause. {T}hose results align with similar studies lead in general cohorts and suggest that the reproductive pattern modulates the familial risk of developing breast cancer after menopause. {A}ltogether, those results impact how we envision breast cancer prevention and call for more research on how ecological and genetic factors shape breast cancer risk.}, keywords = {evolutionary mismatch ; breast cancer ; reproductive pattern ; survival ; models ; menopause ; {FRANCE}}, booktitle = {}, journal = {{F}rontiers in {E}cology and {E}volution}, volume = {11}, numero = {}, pages = {912083 [9 ]}, ISSN = {2296-701{X}}, year = {2023}, DOI = {10.3389/fevo.2023.912083}, URL = {https://www.documentation.ird.fr/hor/fdi:010086978}, }