Alberto Freidman

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Adenosine triphosphate (ATP) release from rabbit erythrocytes occurs in response to deformation or reduced oxygen tension. A signal transduction pathway that relates these stimuli to ATP release has been proposed. This pathway includes the heterotrimeric G proteins, Gs and Gi, adenylyl cyclase, protein kinase A, and the cystic fibrosis transmembrane(More)
The eyes of a 53-year-old woman with K light chain macroglobulinemia were studied histopathologically. Retinal hemorrhages were observed on gross examination. Microscopic examination disclosed eosinophilic, PAS-positive deposits in cystoid spaces within the outer plexiform layer, in the inner retina, and about photoreceptors. Immunofluorescent studies(More)
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