Second patient with multiple sclerosis undergoes groundbreaking surgery at Yale

New Haven, Conn. A 29-year-old man with multiple sclerosis is the second patient to undergo transplantation surgery at Yale in an effort to repair myelin, the protective brain and spinal cord sheath that is destroyed by the disease, Yale researchers have reported.

The surgery took place in two stages March 6-7 and the patient was discharged from Yale-New Haven Hospital March 10. The young man is the second of five patients who are scheduled to participate in the groundbreaking clinical trial.

"The patient is doing fine," said Timothy Vollmer, M.D., associate professor of neurology at Yale School of Medicine. "He has a high level of disability because of the location of the lesions in the brain, but he is otherwise healthy."

There are an estimated 1.4 million persons worldwide with multiple sclerosis. The young man in the trial suffers from a relapsing form of multiple sclerosis, which Vollmer said is the most common form of multiple sclerosis. It affects three times as many women as men.

Vollmer said he and his team hope to perform the procedure on a third patient next month.

The purpose of the Phase One trial is to determine whether cells found in the bodys peripheral nerves, in this case, the ankle, can safely repair the damaged cells in the brain and spinal cord that result in neurologic disability in patients with multiple sclerosis and other disorders of myelin.

In multiple sclerosis, the immune system attacks the brains nerve fibers and strips away the protective myelin sheath around nerve fibers in the spinal cord and brain. The resulting lesions make it difficult for the nerves to transmit messages.

In the first procedure on March 6, the surgical team harvested Schwann cells from the patients ankle. Animal studies show that Schwann cells can replace the cells that generate the myelin. The second day, the cells were injected into the left posterior aspect of the patients brain, which has lesi

Contact: Jscqueline Weaver
Yale University

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