Parsemus Foundation
Sponsored by the nonprofit Parsemus Foundation. Copyright © 2025
Memory Loss Study
at Houston Methodist
at Houston Methodist
Experiencing memory changes?
Interested in research participation?
Join a study exploring L-Serine, a dietary supplement being researched in relation to brain health.
If you have memory changes, are still independent in most of your activities, and are interested in contributing to research, you could be a good candidate.
Is this you? (or your loved one?)
- Memory and thinking changes you can feel, even if other people don’t always notice
- With or without a diagnosis of “Mild Cognitive Impairment” (MCI)
- 55-90 years old
- Already been checked for other common causes of memory problems (such as strokes, low thyroid or iron, ferritin below 50, very high blood pressure, or old head injuries)
- Still mostly able to take care of yourself
- Good at taking pills and setting up reminders
- Able to travel to Houston Methodist Hospital 3 times in 6 months
Who can't be in the study?
- People whose memory problems have already progressed to full Alzheimer’s
- People who’ve had a diagnosis of Mild Cognitive Impairment for too long already (more than 3 years)
- People whose memory problems are from other brain issues (such as strokes, tumors, or head injuries)
- People who haven’t gotten other health problems treated that might be causing their memory issues (such as anemia, low thyroid, or side effects from statins)
- People with cancer
What's involved?
- Comprehensive research evaluation at Houston Methodist
- Initial assessment and two follow-up visits
- Taking study supplements 3 times a day for 6 months
- The supplements contain L-serine, an amino acid being researched
- Access to knowledgeable study staff to answer questions
- No cost to participate in the research
- $400 participant compensation upon completion
What's special about this study?
- The study is run by a nonprofit research institute focused on helping people & advancing knowledge.
- If it works, L-serine could be an affordable option that’s already available to anyone.
- 100 participants have already joined and are part of this meaningful & important research.
- Participants can live in Houston, or fly in from other cities for same-day evaluation.
What if I don’t have a diagnosis of MCI?
If you have already had tests to rule out other common causes of memory issues, study staff can help you get set up with MCI testing at Houston Methodist Hospital.
Watch the CNN documentary by Sanjay Gupta (8 min)
Additional Resources
- Study Sponsor Website: nonprofit Brain Chemistry Labs
- Documentary: “Toxic Puzzle: Hunt For The Hidden Killer”
- Commonwealth Club Interview, 2024: “Hope for Alzheimer’s”
- Expert Interview: “Dementia: Can It Be Prevented?”
- Official Study Description & Eligibility from Houston Methodist Hospital
Talk directly to the study coordinator, Edwin A. Vega
Leave a message for Edwin, the study coordinator, at (346) 238-8284. Please say you heard about it from the Google Ad. We look forward to talking with you!
REQUEST MORE INFORMATION
We’re here to answer your questions and excited to inform you more about the study!
