Figure 3
From: Immune correlates of aging in outdoor-housed captive rhesus macaques (Macaca mulatta)
Relationships between concentrations of selected circulating pro-inflammatory cytokines and age of each rhesus macaque in the study group. Pearson correlation coefficients were calculated between each circulating cytokine concentration and age as shown in the left panel. Student’s t Test was used to compare means of circulating cytokine concentrations between the three age groups of monkeys. P < 0.05 was considered statistically significant.