109or bovine serum albumins showed vigorous secondary-type respoases in both 19s macroglobulin and 7s gamma globulin antibody production. The data indicate that capacity for a secondary response is hot confined to 7s gamma globulin synthesis.
The ultrastructure of the lymphocytes from three children with severe combined immunodeficiency disease (SCID) is described. Parallel tubular arrays (PTA) were found in a large percentage of circulating lymphocytes (53%, 41%, and 13%) in three SCID patients when compared to age-matched controls. The size of these inclusions was quite variable, with some attaining a length of 1.7 micrometer. They contained a tubular substructure with a diameter of 36--44 nm. The PTA were mostly located in the centriolar and Golgi regions of the cytoplasm, and were sometimes membrane bound. A centriolar origin of the inclusion was suggested. A second inclusion, the tubuloreticular structure, was found in only 1.4% of the circulating lymphocytes from one SCID patient. The origin of the PTA and its occurrence in severe combined immunodeficiency disease are discussed.
Amebiasis, that is, infection with Entameba histolytica, continues to be endemic in the United States, with liver abscess occurring as an infrequent but constant complication. Seven cases are reported, with epidemiologic investigation of two. Reliable findings in hepatic abscess include fever, abdominal pain, respiratory distress, tender abdomen, and large, tender liver. Anemia, elevated white count with left shift, and the radiographic findings of an elevated right hemidiaphragm are constant. Epidemiologically, amebiasis occurs in clusters in the United States with person-to-person transmission pre-dominant in spread. Infection is associated with poor sanitation and crowding. Investigation of the families of two patients documented 9/21 carriers and an additional 3/21 who were seropositive, as well as crowding and poor sanitation. In this country, treatment of a patient with amebic disease should include investigation of his home and family.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.