aged article human adult 226 male 226 female 220 Aged 188 priority journal 188 Humans 186 Male 168 Female 166 controlled study 158 Middle Aged 156 Adult 132 major clinical study 94 clinical article 90 adolescent 52 Adolescent 50 middle aged 50 Aged, 80 and over 44 Argentina 44 human cell 40 Child 34 human tissue 32 Alzheimer disease 30 Animals 30 child 30 clinical trial 28 protein expression 28 depression 26