Induction of in vivo dinitrochlorobenzene (DNCB) sensitization has been corre lated with in vitro cultured lymphocyte transformation in 21 patients with histologically confirmed sarcoidosis and 21 matched control subjects. Failure to sensitize with DNCB was noted in 71 percent of patients with sarcoidosis and in 14 percent of controls. Poor lymphocyte transformation occurred in 90 percent of pa...

A study was made of PHA-stimulated formation is age-related. Until the 18th thymic lymphocyte transformation in 10 week of gestation, the per cent of transhuman fetuses ranging from 12 to 22 formed thymic lymphocytes is comparaweeks of gestation. The results were ble to that of blood lymphocytes. After compared with those obtained using cirthe 18th week of gestation, the per cent culating blood...

Optimal conditions were determined for performing antibody measurements (ELISA), lymphocyte transformation tests and, to some extent, skin tests in badgers. These parameters, together with the bacteriological and pathological studies reported previously (Pritchard et al. 1987), were used to follow the course of intradermal and intratracheal challenge of badgers with bovine tubercle bacilli. Two...

Peripheral blood lymphocytes were cultured in vitro in the presence of a mitogen; Concanavalin A (Con A), this resulted into a process described as lymphocyte transformation. The morphological changes in the cells were studied using phase contrast and electron microscopes. The results presented corroborated the existence of lymphocyte heterogeneity in tilapias.

© 2013 The Authors. doi: 10.2340/00015555-1363 Journal Compilation © 2013 Acta Dermato-Venereologica. ISSN 0001-5555 Drug-induced hypersensitivity syndrome (DIHS), also known as drug rash with eosinophilia and systemic symptoms (DRESS), is a severe, adverse drug reaction characterized by skin rash, fever, lymphadenopathy, hepatitis and haematological abnormalities (1, 2). The presence of human ...

Papillon-Lefevre syndrome (PLS) is a very rare genetic syndrome, and fewer than 500 cases have been reported in the world. Patients exhibit typical cutaneous involvement with hyperkeratosis, especially on the soles and palms, and early shedding of primary teeth. Internal organ involvements, such as liver abscesses, have been described in case reports. This communication represents the first tim...

Exposure to compounds of beryllium can cause dermatitis, acute pneumonitis and chronic pulmonary granulomatosis ("berylliosis") in humans. These syndromes seem to have an allergic-immunologic component in common. Hypersensitivity to beryllium is of the delayed (cell-mediated) type and can be measured as skin reactivity to patch test; lymphocyte blast transformation; and macrophage migration inh...

Cell-mediated and humoral immunity were investigated in 18 patients with West syndrome, 12 with Lennox-Gastaut syndrome and 19 healthy controls. The study included determination of T and B peripheral blood lymphocytes, serum levels of IgG, IgA and IgM, skin sensibilization with DNCB, intracutaneous PHA, leucocyte migration inhibition test and lymphocyte blastic transformation in the presence of...

Cell-mediated immunity has been investigated using the leucocyte migration test in 32 patients with chronic active hepatitis or primary biliary cirrhosis. Twenty-six (75%) showed reactivity to liver extract. At least two antigens are involved. Cell-mediated reactivity was confirmed in some cases using lymphocyte ;blast' transformation. There was no correlation with the presence of auto-antibodi...