Fig. 2.

(a–c) Bioactive TNF profile in aqueous humour from allograft recipients. Three typical TNF profiles from aqueous samples from rabbits which had received a corneal allograft on day 0, showing high fluctuations in TNF levels measured by bioassay. Broken line indicates endothelial rejection onset. (d) Bioactive TNF profile in aqueous from an autograft recipient. Typical TNF profile from aqueous samples from a rabbit which had undergone a rotational corneal autograft procedure on day 0, showing negligible TNF levels measured by bioassay.