An interesting paper showing a similar theory for MS was found by Rick in a previous thread.

"MS patients have been shown to have an abnormal blood-brain barrier, presumably as a result of excessive platelet adhesiveness and aggregation. Damage to the blood brain barrier may allow the influx to the cerebrospinal fluid of substances in the blood, such as bacteria, viruses, antibodies, toxic chemicals and other compounds, that are toxic to myelin. Lack of oxygen may also be a contributing factor in de-myelination, by promoting both the release of cellular enzymes and cellular suffocation (death)." (Encyclopedia of Natural Medicine, 1991, Michael T. Murray, N.D. & Joseph E. Pizzorno, N.D.)

http://www.opc.cc/opc-ms.html