Which T-lymphocyte phenotype is the key determinant of childhood allergic asthma?
A)Cluster of differentiation (CD) 4 T-helper Th1 lymphocytes
B)CD4 T-helper Th2 lymphocytes
C)CD8 cytotoxic T lymphocytes
D)Memory T lymphocytes

Question

Quizplus · Accepted Answer

Early onset allergic asthma is initiated by a type I hypersensitivity reaction primarily mediated by Th2 lymphocytes whose cytokines activate mast cells, eosinophilia, leukocytosis, and enhance B-cell IgE production.

Which T-Lymphocyte Phenotype Is the Key Determinant of Childhood Allergic