Article 2 Female 2 Humans 2 Male 2 Middle Aged 2 adult aged 2 controlled study 2 female 2 human 2 major clinical study 2 male 2 metabolism 2 middle aged 2 AGS cell line 1 AIDS 1 Acquired Immunodeficiency Syndrome 1 Adolescent 1 Adult 1 Aged 1 Apoptosis 1 Biomarkers 1 Biomarkers, Tumor 1 CD4 Antigens 1 CD4 antigen 1 CD4+ T lymphocyte 1 CD4+CD25+Treg 1 CD4+PD-1+T cell 1 CD8+ T lymphocyte 1 Cell Proliferation 1