Related Experiment Video
Updated: Jul 15, 2026
06:39
Using a Murine Model of Psychosocial Stress in Pregnancy as a Translationally Relevant Paradigm for Psychiatric Disorders in Mothers and Infants
Published on: June 13, 2021
[Paradoxical interactions between pregnancy and breast cancer]
C Mathelin1, C Youssef, J-P Brettes
1Service de gynécologie-obstétrique, CHRU de Strasbourg, Strasbourg cedex, France. carole.mathelin@chru-strasbourg.fr <carole.mathelin@chru-strasbourg.fr>
Gynecologie, Obstetrique & Fertilite
|April 17, 2007
Summary
Pregnancy
Area of Science:
- Reproductive health
- Oncology
- Epidemiology
Context:
- The relationship between pregnancy and breast cancer is complex, with varying effects on risk.
- Epidemiological studies indicate that nulliparity and late pregnancy increase risk, while early and multiparous pregnancies decrease it.
- Breast cancer during pregnancy presents a paradox of increased mortality risk.
Purpose:
- To explore the intricate interactions between pregnancy and breast cancer.
- To elucidate the mechanisms behind pregnancy's protective and detrimental effects on breast cancer.
- To clarify the implications of pregnancy post-breast cancer treatment.
Summary:
- Early full-term pregnancy and multiparity are protective against breast cancer, whereas nulliparity and late pregnancy increase risk.
- Pregnancy-associated hormonal changes and mammary gland involution play roles in breast cancer risk modulation.
- Pregnancy is not contraindicated after breast cancer treatment if the patient is recurrence-free.
Impact:
- Understanding these interactions can inform breast cancer prevention strategies.
- This research highlights the need for personalized risk assessment in women with a history of pregnancy and breast cancer.
- Findings support the safety of pregnancy for breast cancer survivors, improving reproductive choices.
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