About us


Medistem Panama Overview

Medistem Panama operates an 8000 sq. ft. laboratory that features 3 class 10000 clean rooms, 8 class 100 laminar flow hoods, and 12 class 100 incubators. We are ISO 9001 certified and licensed by the Panamanian Ministry of Health to develop the process of production, expansion and storage of stem cells and stem cell products for therapeutic uses.



President and founder, Neil H. Riordan, PhD established his original stem cell lab at the Institute of Cellular Medicine in Costa Rica circa 2005.  In 2008 he launched Medistem Panama Inc. at the prestigious City of Knowledge. 

Medistem Inc. has established scientific background and developed technology alongside US universities and important research centers around the world including the University of San Diego, University of Utah, University of Western Ontario, University of Florida and University of Massachusetts.  Our research has led to dozens of  scientific publications and seventeen pending patents.

Through Translational Biosciences, a wholly-owned subsidiary, we are currently isolating and producing stem cells and stem cell-based products for clinical trials approved by the Comité Nacional de Bioética de la Investigación (CNEI) Institutional Review Board (IRB) in Panama. 

These trials may be viewed on www.clinicaltrials.gov and include:

  • Human umbilical cord-derived stem cells for multiple sclerosis
  • Human umbilical cord-derived stem cells for rheumatoid arthritis
  • Mesenchymal trophic factors for osteoarthritis
  • Human umbilical cord-derived stem cells for autism


Future Trials:

  • Human umbilical cord- and bone marrow-derived stem cells for spinal cord injury
  • Human umbilical cord-derived stem cells for heart failure
  • Mesenchymal trophic factors for asthma

Medistem also isolates, processes and prepares stem cells for the Stem Cell Institute in Panama City; one of the leading stem cell treatment facilities in the world.


Our Laboratory

Neil Riodan


Neil Riordan, PhD

Neil Riordan, PhD is the founder and chairman of Medistem Panama, Inc., (MPI) a leading stem cell laboratory and research facility located in the Technology Park at the prestigious City of Knowledge in Panama City, Panama. Founded in 2007, MPI stands at the forefront of applied research on adult stem cells for several chronic diseases. MPI’s stem cell laboratory is ISO 9001 certified and fully licensed by the Panamanian Ministry of Health. Dr. Riordan is the founder of Stem Cell Institute (SCI) in Panama City, Panama (est. 2007).

Under the umbrella of MPI subsidiary Translational Biosciences, MPI and SCI are currently conducting five IRB-approved clinical trials in Panama for multiple sclerosis, rheumatoid arthritis and osteoarthritis using human umbilical cord-derived mesenchymal stem cells, mesenchymal trophic factors and stromal vascular fraction. Additional trials for spinal cord injury, autism and cerebral palsy are slated to commence in 2014 upon IRB approval.

Dr. Riordan’s research team collaborates with a number of universities and institutions, including National Institutes of Health, Indiana University, University of California, San Diego, University of Utah, University of Western Ontario, and University of Nebraska.

Dr. Riordan has published over 60 scientific articles in international peer-reviewed journals and authored two book chapters on the use of non-controversial stem cells from placenta and umbilical cord. In the stem cell arena, he and his colleagues have published more than 20 articles on Multiple Sclerosis, Spinal Cord Injury, Heart Failure, Rheumatoid Arthritis, Duchenne Muscular Dystrophy, Autism, and Charcot Marie Tooth Syndrome. 

In 2007, Dr. Riordan’s research team was the first to discover and document the existence of mesenchymal-like stem cells in menstrual blood. For this discovery, his team was honored with the “Medical Article of the Year Award” from Biomed Central. Other notable journals in which Dr. Riordan has published articles include the British Journal of Cancer, Cellular Immunology, Journal of Immunotherapy, and Translational Medicine.

Play Video

Dr. Riordan is an accomplished inventor; listed on more the 25 patent families, including 11 issued patents. He is credited with a number of novel discoveries in the field of cancer research since the mid-1990s when he collaborated with his father Dr. Hugh Riordan on the effects of high-dose intravenous vitamin C on cancer cells and the tumor microenvironment. This pioneering study on vitamin C’s preferential toxicity to cancer cells notably led to a 1997 patent grant for the treatment of cancer with vitamin C. In 2010, Dr. Riordan received another patent for a new cellular cancer vaccine.

Dr. Riordan is also the founder of Aidan Products, which provides health care professionals with quality nutraceuticals including Stem-Kine, the only nutritional supplement that is clinically proven to increase the amount of circulating stem cells in the body for an extended period of time. Stem-Kine is currently sold in 35 countries.

Dr. Riordan earned his Bachelor of Science at Wichita State University and graduated magna cum laude. He received his Master’s degree at the University of Nebraska Medical Center. Dr. Riordan completed his education by earning a Ph.D. in Health Sciences at Medical University of the America