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Short Answer

1. Why are antihistamines useful for treating many IgE-mediated allergic reactions but not effective in treating asthma?

2. Penicillin is a very small molecule, yet it can cause any of the types of hypersensitivity reactions, especially type I. How can this occur?

3. What are some major differences between an IgE-mediated skin reaction, such as hives, and a delayed hypersensitivity reaction, such as a positive tuberculin skin test?

4. What causes insulin-dependent diabetes mellitus?

5. Give at least two lines of evidence showing that myasthenia gravis results from antibody activities.

6. Give an example of an organ-specific autoimmune disease and one that is widespread, involving a variety of tissues and organs.

Diabetes 2

Diabetes 2

Diabetes is a disease that affects the way your body uses food. Normally, your body converts sugars, starches and other foods into a form of sugar called glucose. Your body uses glucose for fuel. The cells receive the glucose through the bloodstream. They then use insulin a hormone made by the pancreas to absorb the glucose, convert it into energy, and either use it or store it for later use. Learn more...

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