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Related Concept Videos

Cancer Survival Analysis01:21

Cancer Survival Analysis

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Cancer survival analysis focuses on quantifying and interpreting the time from a key starting point, such as diagnosis or the initiation of treatment, to a specific endpoint, such as remission or death. This analysis provides critical insights into treatment effectiveness and factors that influence patient outcomes, helping to shape clinical decisions and guide prognostic evaluations. A cornerstone of oncology research, survival analysis tackles the challenges of skewed, non-normally...
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Menopause, a natural biological process marking the end of a woman's fertility, typically occurs between the fifth and sixth decade of life. This phase is characterized by the exhaustion of the ovarian follicle pool, leading to less responsive ovaries despite the high levels of Follicle Stimulating Hormone (FSH) and Luteinizing Hormone (LH). The consequential decrease in estrogen production results in symptoms like hot flashes, heavy sweating, headaches, hair loss, muscle pains, vaginal...
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Several factors can increase the risk of cancer in an individual. About 50% of cancer cases can be prevented by adopting a healthy lifestyle, regular exercise, eating healthy, and following a modest cancer prevention diet. Epidemiological studies have consistently shown that populations with vegetable and fruit-rich diets have reduced the incidence of cancer. On the other hand, populations who have a diet rich in animal fat, red meat, junk food, or high calories are predisposed to cancer.
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Tumor progression is a phenomenon where the pre-formed tumor acquires successive mutations to become clinically more aggressive and malignant. In the 1950s, Foulds first described the stepwise progression of cancer cells through successive stages.
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Updated: Apr 17, 2026

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Age and Sex in Breast Cancer: Moving Beyond a One-Size-Fits-All Approach.

José Pablo Leone1, Mina S Sedrak2

  • 1Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA.

Clinical Breast Cancer
|April 15, 2026
PubMed
Summary

Breast cancer treatment must account for age and sex differences. Current approaches often fail older adults and male breast cancer patients, necessitating a precision medicine framework.

Keywords:
Breast Cancer in the ElderlyMale Breast CancerTreatmentTreatment responseTumor biology

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Area of Science:

  • Oncology
  • Genetics
  • Precision Medicine

Background:

  • Breast cancer exhibits significant heterogeneity, influenced by patient age and sex.
  • Current clinical and research practices often employ a generalized approach, overlooking age and sex-specific nuances.
  • Older adults and males are underrepresented in breast cancer research, leading to knowledge gaps.

Purpose of the Study:

  • To propose a framework addressing the interplay of age and sex in breast cancer.
  • To advance precision medicine strategies for diverse breast cancer populations.
  • To optimize treatment outcomes by considering individual patient characteristics.

Main Methods:

  • Review of existing literature on age and sex influences in breast cancer.
  • Analysis of biological and molecular differences across patient demographics.
  • Discussion of current clinical trial limitations and data extrapolation issues.

Main Results:

  • Age and sex are critical determinants of breast cancer biology and treatment response.
  • Existing research frameworks inadequately address the heterogeneity of breast cancer.
  • Male breast cancer exhibits distinct molecular features compared to female breast cancer.

Conclusions:

  • A tailored, precision medicine approach is essential for effective breast cancer care.
  • Incorporating age and sex variables into research and clinical practice will improve patient outcomes.
  • Further research is needed to fully elucidate age- and sex-specific breast cancer mechanisms.