Fig. 1.

A schematic diagram of the experiment. The asterisk indicates the time points at which the different trials were carried out. Rats of control and experimental groups were fed with controlled diet and diet supplemented with SDS, respectively. Body weights were measured on 0, 10, 20, 30, and 40 days of the trial. Blood was sampled on 0, 15, 30, and 45 days of the trial. DTH response was assayed on day 22 of the trial (i.e., 7 days after KLH immunization). Spleen was collected at 45 day of the trial (i.e., sacrifice day)