Biomarkers CD4+ T lymphocyte Humans 4 biological marker 4 human 4 metabolism CD8+ T lymphocyte 3 immunology 3 Aged 2 Article 2 Female 2 Human immunodeficiency virus infection 2 Male 2 Middle Aged 2 Severity of Illness Index 2 adult 2 aged 2 controlled study 2 female 2 major clinical study 2 male 2 middle aged 2 severity of illness index 2 AIDS 1 Acquired Immunodeficiency Syndrome 1 Adolescent 1 Adult 1 Animals 1 CCL3 1 CCL5 1