The peripheral blood lymphocytes of patients with recurrent aphthous ulcers (RAU) were studied during various stages of their disease by two-color immunofluorescence with the use of monoclonal antibodies directed against human T cells (CD3), T helper cells (CD4), T suppressor cells (CD8), T helper/inducer cells (CDw29), and T suppressor/inducer cells (CD45R). All patients with severe RAU showed increased numbers of T helper/inducer cells (CDw29) and decreased numbers of T suppressor/inducer cells (CD45R). One of six patients with RAU showed a decreased T helper/T suppressor ratio (CD4/CD8). These findings suggest that patients with RAU may possess primary immunologic abnormalities.
No takes yet. Share an insight, caveat, or question.
Landesberg et al. (1990) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: