In EAO, prolactin levels were similar to untreated rats (ng/mL, mean ± SEM, Untreated rats (n = 11): 13.10 ± 1.99; focal OAE (n = 11): 14.93 ± 1.80; severe OAE (n = 11): 9.37 ± 2.78 and Table S1: Serum hormonal levels in human and rat orchitis). This evidence concerns the gene PRL and orchitis.