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Burns Incl Therm Inj. 1982 Mar;8(4):231-7.

The suppressive activity of T-lymphocytes and serum factors in burned patients.


This study was performed to investigate the cell-mediated immune response in burned patients with no septic episodes. The results show that burned patients with percentage body burn higher than 20 had an impaired lymphocyte reactivity to phytohaemagglutinin and conconavalin A. This hyporesponsiveness appeared on day 3-4 and in all cases reached its maximum on day 7-8 post burn, while recovery occurred between day 11 and 29 depending on the severity of the injury. The serum from immunodepressed patients was able to inhibit the response to phytohaemagglutinin and conconavalin A of normal lymphocytes. This immunosuppressive activity was present very early after injury (on day 1-2) and before the onset of lymphocyte hyporesponsiveness to mitogens and was no longer detectable on day 7-8 post burn, when patient lymphocytes showed the greatest hyporesponsiveness to mitogens. This late depression was due to T suppressor cells.

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