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q4 - raj_mandalapu
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09-26-2007, 06:18 AM
Antibody titers to latent viruses, e.g., Epstein-Barr or herpes simplex, can be
decreased by which of the following? A. Relaxation training B. Immunosuppressive chemotherapy C. The stress of academic examinations D. Loneliness E. Sustained noise
09-26-2007, 06:28 AM
??? please explain the options too.. is ithis made up by u?
ans . cc?
09-26-2007, 06:35 AM
Stress may depress immunity it is the reason why i think that relaxation train is the answer here...
09-26-2007, 07:33 AM
he answer is: A
The immune system may control latent viruses such as Epstein-Barr or herpes simplex, but it cannot destroy or eliminate them. If the immune system is weakened so that the virus becomes more active, the antibody titers to the virus will increase. Immunosuppressive drugs will increase antibodies to latent viruses. Kiecolt-Glaser and Glaser, working with medical students and elderly residents of nursing homes, were able to demonstrate that the stress of examinations and loneliness were associated with elevated antibody titers. Sustained noise also causes a rise in antibody titers initially, but after a few days the organism seems to adapt and titers return to normal. Studies have also demonstrated that relaxation training produces decreased antibody titers to latent viruses by generating an increase in natural killer cell activity. |
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