Animals 4 Antidepressive Agents, Second-Generation 4 Cell Proliferation 4 Fluoxetine 4 Mice 4 animal experiment animal model 4 animal tissue 4 article 4 cell proliferation 4 controlled study 4 depression 4 fluoxetine 4 nonhuman 4 priority journal 4 5-bromo-2′-deoxyuridine 2 Antidepressant 2 B cells 2 B-Lymphocytes 2 Bromodeoxyuridine 2 CD4 CD8 ratio 2 CD4-CD8 Ratio 2 CD4-Positive T-Lymphocytes 2 CD4/CD8 2 CD8-Positive T-Lymphocytes 2 Cell Count 2 Chronic Disease 2 Chronic stress 2 Cytokines 2 Cytoplasmic Granules 2