<p>A CNTF-NS and a control-NS cell line were intravitreally grafted into 14 days old <i>nclf</i> mice and photoreceptor numbers were determined in central retinal sections at six defined positions two, four and six weeks after transplantation. Note that CNTF-treated eyes contained significantly more photoreceptors (filled bars) than the contralateral eyes with grafted control-NS cells (open bars) at all post-transplantation time points. Each bar represents the mean value (±SEM) from six retinas. ***, p<0.001 (Newman-Keuls post hoc test after the mixed two-way ANOVA).</p
