Question

Please Answer/Explain the following

1. What types of over-the-counter drugs can block two different steps of the acute inflammatory response?

a. antihistamines

b. antihistamines + painkillers

2. If a macrophage is infected a virus, viral peptides would be presented on

a. CD4 cell receptor

b. MHC class I

c. CD8 receptor

d. MHC class II

3. Which of the following proteins ensure that the immune system not attack our own cells:

a. MHC-II and CD47

b. CD8 T cell receptors and MHC-I

c. CD4 T cell receptors and MHC-II

d. MHC-I and CD47

e. MHC-I and MHC-II

Answer 1

1	b. antihistamines + painkillers	Antihistaminic drugs are the agents which are used in the treatment of diverse type of allergies. They are used in the treatment of sneezing, nasal decongestion and allergy due to pollens. Analgesic can be combined with antihistaminics to relieve pain and inflammation
2	c. CD8 receptor	CD8 receptor are found over the surface of T cytotoxic cells and natural killer cells. CD8 can be regarded as marker of T cytotoxic cell. CD8 binds to MHC and initiates immune response.
3	b. CD8 T cell receptors and MHC-I	CD8 receptors are associated with recoginition of pathogen receptors. MHC-I display harmful protein to cytotoxic T cells.