Clients & Visitors

The Regenerative Medicine Service™:
Healing on a Cellular Level


Regenerative Medicine harnesses the power of the body’s own cells and proteins to promote healing by regenerating tissue after trauma. The goal of regenerative medicine is to bring injured tissue back to its original pristine condition. Many tissues can benefit, such as tendon, ligament, and cartilage.

The Regenerative Medicine Service offers a myriad of regenerative therapies to promote healing for both horses and dogs.Through your personal vet or at our EMC facility we are able to get you the treatment you need. Veterinarians and pet parents are welcome to contact us for information about using the Regenerative Medicine Service at

We have an extensive network of veterinarians who are currently utilizing our treatments in their practice, including Veterinary Orthopedics and Sports Medicine (VOSM). Visit the VOSM website to learn more about our collaborative small animal clinical research program.

Our Therapies

Platelet Rich Plasma (PRP)

View the flow chart to see how this type of therapy is used.

Platelets circulate in blood and are responsible for initiating the clotting process and healing following injury. Platelets become “activated” when exposed to a wound which causes them to release substances called growth factors that begin and sustain healing. These growth factors are powerful proteins that recruit healing cells and new blood vessels to sites of injury, and allow the cells to heal the injury. PRP, or platelet rich plasma, is a blood product prepared by concentrating the patient’s platelets in plasma while removing other cells. Therapeutic PRP injections have been shown to enhance and accelerate the body’s own healing mechanism for numerous types of injuries including ligament injuries. PRP is available for horses and dogs through our Regenerative Medicine Service.


View the flow chart to see how this type of therapy is used.

IRAPTM II therapy was developed to counteract the inflammatory protein, interleukin-1, which is produced at high levels in inflamed or diseased joints. Osteoarthritis, or degenerative joint disease, is a common cause of lameness in equine patients and may be successfully treated using IRAPTM II therapy. The procedure involves sterile removal of approximately 50 ml of blood that is then processed overnight and separated into several samples for multiple injections over a given time span. This processed serum contains beneficial growth factors, as well as a protein that inhibits interleukin-1, namely, Interleukin-1 Receptor Antagonist Protein (IRAP). IRAPTM II is available at the EMC for equine patients with joint disease, osteoarthritis, or synovitis.

Autologous Conditioned Serum (ACS)

ACS brings together the benefits of PRP and IRAP into one therapy. Through our proprietary protocol and formula we concentrate growth factors, anti-inflammatory factors, and nutrients. The procedure involves sterile removal of approximately 500 ml of blood that is then processed overnight and separated into several samples for multiple injections over a given time span.

Stem Cell Therapy

View the flow chart to see how this type of therapy is used.

Stem cells and progenitor cells are extraordinary because they can grow and divide many times, while other cells in the body that have become functionally specialized cannot. Stem cells are also remarkable because they are able to form multiple types of tissue, for example cartilage, bone, or tendon, through a process of specialization called differentiation. The use of the body’s own stem cells is a promising therapy for tendon, ligament, and soft tissue injuries. Cells can be isolated from bone marrow, adipose tissue, and tendon tissue then grown to adequate quantities in our laboratory. Enough cells can be grown so that a surplus can be saved for future use. These cells possess the ability to multiply and give rise to the specific type of tissue that has been damaged, thus allowing for accelerated and natural healing to occur. They also inhibit inflammation and recruit other stem cells into the lesion. We recommend this therapy for tendon and joint injuries.

About Regenerative Medicine Service Appointments

  • The EMC's Regenerative Medicine Service is available to all clients, whether they are referred by their family veterinarian or wish to schedule services directly.
  • The Regenerative Medicine Service also provides cells, PRP, ACS, and IRAP for outside veterinary clinics for both horses and dogs.
  • For an appointment or for more information, call 703-771-6800 or email
  • The Client Care packet offers more information about the Marion duPont Scott Equine Medical Center Client Care Packet. (PDF)

Leading the EMC's Regenerative Medicine Service

Dr. Jennifer BarrettDr. Jennifer Barrett directs the EMC's Regenerative Medicine Service at the Marion duPont Scott Equine Medical Center. In addition to her work at the EMC, Dr. Barrett serves on the Board of Directors of the North American Regenerative Medicine Association. Dr. Barrett is motivated by a sincere love of animals to push the envelope of regenerative therapies. Her vision is to make the most current validated regenerative medicine treatments available to both equines and canines at a reasonable cost.

Regenerative Medicine Service Staff

Xiaojing GuanXiaojing Guan
Laboratory Specialist

Prior to joining the Regenerative Medicine Service, Xiaojing received her Ph.D. degree in Animal Science from Virginia Tech and continued post-doctorate research in the Comparative Genomics Lab. Xiaojing managed the VT-PREP and IMSD, two NIH-funded education programs for minority students, and her research experiences included genomics, biochemistry, and molecular biology. She is passionate about regenerative medicine, especially stem cell research and applications.

Success Stories

Invite Moonlight’s Story

Invite Moonlight

Invite Moonlight was diagnosed with lameness from a bone cyst in her left front coffin bone ... obviously, not news a horse owner wants to receive! But, fortunately, the specialists at the Equine Medical Center offer a cutting-edge treatment plan that involves stem cells.
Learn more about Invite Moonlight’s treatment…

Buck’s Story

Invite Moonlight

“In 2008, Buck suffered a laceration to his right hind superficial digital flexor tendon. Prior to the injury Buck successfully competed in eventing/jumpers/hunters along with tons of trail miles. About six months into the injury my vet recommended that I take him down to the EMC to try stem cell treatment.”
Learn more about Buck’s treatment…

Regenerative Medicine in the News

Pulse of the Planet

Dr. Jennifer Barrett, director of the EMC’s Regenerative Medicine Service, was featured in a series of interviews with Pulse of the Planet, a radio series providing listeners with sound portraits of Planet Earth, tracking the rhythms of nature, culture and science worldwide.



The following articles offer more information about regenerative medicine at the Marion duPont Scott Equine Medical Center.