MarkVCID Study: Biomarkers for Vascular Contributions to Cognitive Impairment and Dementia

The purpose of this study is to identify the early indicators that can help us distinguish future healthy aging from dementia.

Why should I participate in this study?

For this study, we are enrolling 200 participants so we can:

  • Identify useful biological markers for brain vessel diseases, as these diseases can contribute to cognitive impairment and dementia.
  • Learn more about which biomarkers are better suited for adults of Mexican-American origin living in South Texas.
  • Provide valuable insight for future clinical trials on cognitive impairment and dementia.

How do I know if I qualify to participate?

To participate in this study, you must be:

  • Aged 55 years or older
  • Self-identified as a Mexican-American
  • Currently living in the San Antonio area

What will I do as a clinical research participant?

As a participant, you will have two visits one year apart.

At your first clinical visit you will undergo:

  • Clinical and sensorimotor assessments
  • Memory and thinking tests
  • Blood tests
  • A picture of your retina (eye)
  • A brain scan
  • An optional lumbar puncture (If you choose to not have a lumbar puncture, you will still be able to participate in the main study.)

About a year after your first visit, we will repeat the tests performed at the initial visit to evaluate how your brain health changed over time.


You may receive up to $300 for participating in this research study.

Who will have access to my information?

Your information will be kept private and maintained in a secure database.

Learn more:

Tiffany Kautz, Ph.D.

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