Background and Objective: Rosacea is a common and ill-defined disease and Demodex folliculorum has been reported in rosacea in a number of clinical studies. Since demodex mite is present in many healthy individuals, the mite may have a pathogenic role only when it is present in high densities. Therefore,...

which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. The role of B cells in acute graft-versus-host disease TO THE EDITOR: Mounting evidences implicates B cells in the pathogenesis of chronic graft-versus-host disease (GVHD). The body of evidence includes findings such as correlation between chronic GVHD and a...

A patient with Lennert's lymphoma (malignant lymphoma with a high content of epithelioid histiocytes) is described. The case is unique in that hepatosplenomegaly was the presenting feature, the diagnosis was made on bone marrow biopsy and the disorder appears to have run a benign course.

Cell suspensions of normal and leukemic mouse lympho cytes from spleens, thymuses, and mesenteric lymph nodes actively incorporate acetate into cellular lipids. The de novo synthesis of digitonin-precipitable sterols in leukemic cells is tenfold greater than that of normal cells and is associated with a correspondingly increased activity of the rate-limiting enyzme, 3-hydroxy-3-methylglutaryl c...

Based on their migration in immunoelectrophoresis they have been called 5 or slow-migrating and F or fast-migrat ing antigens. These antigens are oncofetal (1) and share common antigenicity with thymic tissue. The present analy sis supports the view that F antigen was related to lympho cyte proliferation and was found in other immune processes and in a cultured Burkitt's lymphoma. S antigen inc...