Vitamin B6 and immune function in the elderly and HIV-seropositive subjects

Vitamin B6 plays an important role in immune response. A recent investigation of healthy elderly subjects in a vitamin B6 depletion-repletion study indicates that B6 deficiency impairs interleukin-2 production and lymphocyte proliferation. Another study in HIV-1-infected patients found impaired immune responsiveness in patients with compromised vitamin B6 status.