TABLE I
Effect of porcine uterine flushings (PUF) and Retinol binding proteins (RBPs) on lymphocyte proliferation induced by phytohemagglutinin (PHA).

Protein Concentration Tested (g/ml)
PUF*
RBPs*
0.6
86.8± 8.6
138.1± 10.1
3.2
114.2± 7.6
131.2± 8.2
16.0
113.4 ± 9.4
141.0± 7.0
80.0
125.3± 5.5
156.7 ± 10.4
200.0
103.7 ± 7.7
145.2± 6.8
400.0
110.7 ± 6.8
123.7± 10.6

* Data presented are derived from nine experiments, although not all concentrations were tested in every experiment. Each value is the mean percent of control ± SEM of quadruplicate cultures in each experiment.