title: Aging Phenotypes of Common Marmosets (Callithrix jacchus).
abstract: Characterizing the phenotypic changes associated with aging in a short-lived primate is necessary in order to develop better translational models for human health, aging, and disease research. A population of conventionally housed marmoset monkeys was assessed to determine if phenotypes of body composition, hematology, and morphometrical measures were associated with age or risk of death. We found that the cause of mortality in older marmosets was more likely to be due to cardiac and chronic kidney disease than in younger marmosets. Older marmosets have decreased fat mass, morphometric measures, and serum albumin. Older marmosets are more likely to show a modified posture while at rest and this modified posture was significantly associated with an increased risk of imminent death. These assessments provide an initial definition of aged health in marmosets and a base for future translational aging research with this species.
authors.affiliation: Department of Cellular and Structural Biology, Barshop Institute for Longevity and Aging Studies, University of Texas Health Science Center at San Antonio, 15355 Lambda Dr. STCBM Bldg, San Antonio, TX 78245, USA.
authors.forename: Corinna N
authors.initials: CN
authors.lastname: Ross
authors.forename: Kenneth
authors.initials: K
authors.lastname: Davis
authors.forename: Georgina
authors.initials: G
authors.lastname: Dobek
authors.forename: Suzette D
authors.initials: SD
authors.lastname: Tardif