Letter: Human lymphocyte transformation by phytohaemagglutinin after "in vitro" and "in vivo" irradiation.
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Biomedical subjects
Publications and source records attributed to J Braeman.
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Fifty cases of Hodgkin's disease have been investigated using the lymphocyte transformation response to phytohaemagglutinin (PHA) as a mesure of their immunological reaction. The average response of all the cases was lower than that of the controls and lower than that of cases of carcinoma from all sites. Cases of Hodgkin's disease which had been treated previously with radiotherapy and/or chemotherapy had a markedly lower response than that of the untreated cases. There was no definite correlation between the stage of the disease and the lymphocyte response with PHA. Seven cases were also tested with pokeweek mitogen (PWM) and the response of the lymphocytes to PWM was found to parallel that of the PHA.
One hundred and twenty cases of cancer of the lung have been tested for their lymphocyte transformation to phytohaemagglutinin (PHA) before and after treatment by radical radiotherapy. The average response of these patients was lower than that of the controls. The fall in the lymphocyte response during treatment was calculated. The pre-treatment lymphocyte response with PHA was not related to survival after treatment. The fall in the lymphocyte response during treatment was related to the survival of the patients after treatment.
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