Microcheck 168

Natural killer (NK) cells can mediate antibody-dependent cellular cytotoxicity (ADCC). NK cells also kill cells not bearing MHC class I molecules on their surface.

■ What mechanism do NK cells use to kill "self" cells?

■ What can cause a "self" cell to not bear MHC class I molecules on its surface?

■ What selective advantage would a virus have if it interferes with the process of antigen presentation?

Supplements For Diabetics

Supplements For Diabetics

All you need is a proper diet of fresh fruits and vegetables and get plenty of exercise and you'll be fine. Ever heard those words from your doctor? If that's all heshe recommends then you're missing out an important ingredient for health that he's not telling you. Fact is that you can adhere to the strictest diet, watch everything you eat and get the exercise of amarathon runner and still come down with diabetic complications. Diet, exercise and standard drug treatments simply aren't enough to help keep your diabetes under control.

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