Racial discrimination

Exposure

6 papers13 findings

  • 4 independent labs in 1 country
  • 1 finding against
  • Humans6

Outcomes

6

Enlarged perivascular spaces

downin humans1upin humans1

1 study
  1. Racial discrimination decreases enlarged perivascular spaces in humans.

    “Racial discrimination was significantly associated with smaller ePVS volumes in White participants, and larger ePVS volumes in Black participants”

    Humansin White participants

    Association of Lifetime Discrimination with Cerebral Small Vessel Disease and Amyloid PET: the Multi‐Ethnic Study of Atherosclerosis (MESA)

    AAIC 2025 abstract25 Dec 2025

  2. Racial discrimination increases enlarged perivascular spaces in humans.

    “Racial discrimination was significantly associated with smaller ePVS volumes in White participants, and larger ePVS volumes in Black participants”

    Humansin Black participants

    Association of Lifetime Discrimination with Cerebral Small Vessel Disease and Amyloid PET: the Multi‐Ethnic Study of Atherosclerosis (MESA)

    AAIC 2025 abstract25 Dec 2025

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NfL

upin humans1

1 study
  1. Racial discrimination increases NfL in humans.

    “higher levels of discrimination reported in midlife associated with a more pronounced acceleration in sNfL, particularly in late midlife (after age 55)”

    Humans15 yearsfemales

    Racial discrimination accelerates age-related increases in serum neurofilament light chain among African American women: examination of change from midlife to older adulthood

    The journals of gerontology. Series B, Psychological sciences and social sciences17 Mar 2026

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Cerebral amyloid

upin humans1

1 study
  1. Racial discrimination increases cerebral amyloid in humans.

    “Endorsing 2+ reasons was significantly associated with higher burden of cerebral amyloid among Black participants”

    Humansin Black participants endorsing 2+ reasons

    Association of Lifetime Discrimination with Cerebral Small Vessel Disease and Amyloid PET: the Multi‐Ethnic Study of Atherosclerosis (MESA)

    AAIC 2025 abstract25 Dec 2025

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White matter hyperintensities

upin humans1

1 study
  1. Racial discrimination increases white matter hyperintensities in humans.

    “More lifetime, but not everyday, racial discrimination was associated with greater WMH.”

    Humansnon-Latine Black older adults without dementia

    White Matter Hyperintensities Mediate the Effect of Racial Discrimination on Cognition

    AAIC 2025 abstract23 Dec 2025

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Subjective memory concerns

upin humans1

1 study
  1. Racial discrimination increases subjective memory concerns in humans (b=0.119, 95% CI 0.045 to 0.192).

    “More lifetime, but not everyday, racial discrimination was associated with worse executive functioning (b=‐0.062; 95% CI=‐0.111, ‐0.012) and greater subjective memory concerns (b=0.119; 95% CI=0.045, 0.192)”

    Humansnon-Latine Black older adults without dementia

    White Matter Hyperintensities Mediate the Effect of Racial Discrimination on Cognition

    AAIC 2025 abstract23 Dec 2025

Executive functioning

downin humans1

1 study
  1. Racial discrimination impairs executive functioning in humans (b=-0.062, 95% CI -0.111 to -0.012).

    “More lifetime, but not everyday, racial discrimination was associated with worse executive functioning (b=‐0.062; 95% CI=‐0.111, ‐0.012)”

    Humansnon-Latine Black older adults without dementia

    White Matter Hyperintensities Mediate the Effect of Racial Discrimination on Cognition

    AAIC 2025 abstract23 Dec 2025

Associations

6

Cerebral microbleeds

upin humans1

1 study
  1. Racial discrimination is associated with cerebral microbleeds in humans.

    “Lifetime discrimination was associated with higher odds of CMB in Hispanic participants”

    Humansin Hispanic participants

    Association of Lifetime Discrimination with Cerebral Small Vessel Disease and Amyloid PET: the Multi‐Ethnic Study of Atherosclerosis (MESA)

    AAIC 2025 abstract25 Dec 2025

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Enlarged perivascular spaces

upin humans1

1 study
  1. Racial discrimination is associated with enlarged perivascular spaces in humans.

    “Racial discrimination was significantly associated with smaller ePVS volumes in White participants, and larger ePVS volumes in Black participants”

    Humansin Black participants

    Association of Lifetime Discrimination with Cerebral Small Vessel Disease and Amyloid PET: the Multi‐Ethnic Study of Atherosclerosis (MESA)

    AAIC 2025 abstract23 Dec 2025

More on Enlarged perivascular spaces

Molecular stress

upin humans1

1 study
  1. Racial discrimination is associated with molecular stress in humans.

    “Respondents in this profile had significantly elevated molecular stress compared to the reference profile”

    Humanshigh everyday and major discrimination, high family support, moderate friend support, high strain from family and friends vs reference profile

    DISCRIMINATION, SOCIAL RELATIONSHIPS, AND ACCELERATED AGING AMONG MIDDLE-AGED AND OLDER AFRICAN AMERICANS

    GSA 2024 abstract31 Dec 2024

Gray matter volume

downin humans1

1 study
  1. Racial discrimination is associated with gray matter volume in humans (p = 0.008).

    “Stratified analysis revealed stronger associations between racial discrimination and GMV and WMHV in Black participants (p = 0.008 and 0.003, respectively).”

    Humansin Black participantsbrain

    SELF-REPORTED DISCRIMINATION AND BRAIN STRUCTURAL ABNORMALITIES: THE MULTI-ETHNIC STUDY OF ATHEROSCLEROSIS

    GSA 2024 abstract31 Dec 2024

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Amyloid PET positivity

upin humans1OR 2.24

1 study
  1. Racial discrimination is associated with amyloid PET positivity in humans (OR 2.24 (95% CI 1.07, 4.70)).

    “Racial discrimination was also significantly associated with higher odds of amyloid positivity [OR (95%CI) = 2.24(1.07, 4.70)].”

    Humansbrain

    SELF-REPORTED DISCRIMINATION AND BRAIN STRUCTURAL ABNORMALITIES: THE MULTI-ETHNIC STUDY OF ATHEROSCLEROSIS

    GSA 2024 abstract31 Dec 2024

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White matter hyperintensity volume

upin humans1

1 study
  1. Racial discrimination is associated with white matter hyperintensity volume in humans.

    “Racial discrimination was positively associated with greater white matter hyperintensity volume (WMHV)”

    Humansbrain

    SELF-REPORTED DISCRIMINATION AND BRAIN STRUCTURAL ABNORMALITIES: THE MULTI-ETHNIC STUDY OF ATHEROSCLEROSIS

    GSA 2024 abstract31 Dec 2024

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