i completely forgot how to spell your name. thanks for posting this. glutathione is something i know little about but it sounds like it is a player in the pd mystery, perhaps a big player. The major antioxidant in our bodies.

wikipedia says among many other things about glutathione:

is essential for the immune system to exert its full potential, e.g., (1) modulating antigen presentation to lymphocytes, thereby influencing cytokine production and type of response (cellular or humoral) that develops, (2) enhancing proliferation of lymphocytes, thereby increasing magnitude of response, (3) enhancing killing activity of cytotoxic T cells and NK cells, and (4) regulating apoptosis, thereby maintaining control of the immune response.[citation needed]

It plays a fundamental role in numerous metabolic and biochemical reactions such as DNA synthesis and repair, protein synthesis, prostaglandin synthesis, amino acid transport, and enzyme activation. Thus, every system in the body can be affected by the state of the glutathione system, especially the immune system, the nervous system, the gastrointestinal system and the lungs.[4]

http://en.wikipedia.org/wiki/Glutathione