Abstract: A transplant system and method including at least one cell from a xenogeneic donor to be transplanted into a host. The at least one cell is adapted to include a gene that causes expression of a protein that suppresses or prevents an immune response of the host to the at least one cell.

Abstract: The present invention provides methods for: detecting and quantifying the release of chemical agents, such as anti-inflammatory drugs from the synovial cavity of a joint into the vascular system of the joint; directly measuring the effect of chemical agents on oxygen consumption and the oxygen extraction rate of the joint cells alone; directly and simultaneously measuring the effect of anti-inflammatory drugs on hemodynamic parameters of the joint, and on transsynovial parameters of the joint, such as the permeability of the synovial membrane of a joint, the production of synovial fluid by the joint, and the composition of the synovial fluid of the joint. Each of these methods is useful for evaluating the efficacy of chemical agents on joint inflammation.