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Self-Reported Cancer-Related Cognitive Impairment in Patients With Breast Cancer Is Associated With Potassium Channel

Kate R Oppegaard1, Marilyn J Hammer2, Yvette P Conley3

  • 1University of California, San Francisco.

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|April 26, 2024
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Genetic variations in potassium channels are linked to cognitive impairment in breast cancer patients. This finding may help identify at-risk individuals and develop new treatments for cancer-related cognitive impairment (CRCI).

Keywords:
attentional functionbreast cancercancer-related cognitive impairment

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Area of Science:

  • Genetics
  • Oncology
  • Neuroscience

Background:

  • Cancer-related cognitive impairment (CRCI) affects many breast cancer patients.
  • Understanding the biological mechanisms of CRCI is crucial for developing interventions.

Purpose of the Study:

  • To investigate the association between potassium channel gene polymorphisms and CRCI levels in breast cancer patients.
  • To identify specific genetic markers related to cognitive function after breast cancer surgery.

Main Methods:

  • 397 women undergoing breast cancer surgery were recruited.
  • Cognitive function was assessed using the Attentional Function Index (AFI) pre- and post-surgery.
  • Growth mixture modeling was used to classify patients into high or low-moderate attentional function groups.

Main Results:

  • Six single nucleotide polymorphisms (SNPs) in potassium channel genes were significantly associated with membership in the low-moderate attentional function class.
  • These findings suggest a genetic predisposition to cognitive impairment in some breast cancer patients.

Conclusions:

  • The study identifies specific potassium channel gene polymorphisms as potential contributors to CRCI.
  • These results may aid in identifying breast cancer patients at higher risk for cognitive dysfunction.
  • This knowledge could inform the development of targeted therapeutic strategies for CRCI.