Dopamine transmission in peripheral immune cells of patients with Parkinson's disease


The purpose of this research is to collect blood from Parkinson’s disease patients and healthy individuals, as well as patients with major depressive disorder and Alzheimer’s disease, of the same age or gender as those patients in the hope to find future diagnostics tools and establish early therapeutic biomarkers for Parkinson’s disease.


  • We will obtain your (-two tablespoons) of blood from your arm for our later studies on the blood macrophages
  • If your caregiver or spouse is interested in participating as one of our control participants they may consent into the study. It is not a requirement for your spouse or caregiver to give blood in order for you to be in this study.

For questions about study procedures, please contact Habibeh Khoshbouei:


  • Diagnosis of Parkinson’s disease, Major depressive disorder or Alzheimer’s Disease.

For questions about eligibility criteria, please contact Habibeh Khoshbouei:


18 to 65
65 and over



Monetary compensation


Can be done from home



Parkinson's disease, Alzheimer disease, Major depression

Principal Investigator

Habibeh Khoshbouei, PhD



Contact Information

(352) 273-8739

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  • Eligibility: For questions about a specific study and who is eligible to participate, call or email the contact person listed for that study.
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