AnAge entry for Psammomys obesus

Classification (HAGRID: 03074)

Taxonomy: Kingdom: Animalia
    Phylum: Chordata
        Class: Mammalia (Taxon entry)
            Order: Rodentia
                Family: Muridae
                    Genus: Psammomys
Species: Psammomys obesus
Common name: Fat sand rat
Synonyms: Psammomys algiricus, Psammomys roudairei, Psammomys tripolitanus, Psammomys obesus dianae, Psammomys obesus nicolli, Psammomys obesus terraesanctae

Maximum longevity: 3.2 years (captivity)
Source: ref. 671
Sample size: Medium
Data quality: Acceptable
Observations: Used as a biomedical model of nutritionally-induced diabetes type 2 and obesity. Record longevity in captivity is 3.2 years [0671]. In one study, degeneration of the intervertebral disks was observed from 6 months of age [0885].

No information on metabolism is available.

[0671] Richard Weigl (2005), Longevity of Mammals in Captivity; from the Living Collections of the World
[0888] Ziv et al. (1999), Changing pattern of prevalence of insulin resistance in Psammomys obesus, a model of nutritionally induced type 2 diabetes (PubMed)
[0434] Ronald Nowak (1999), Walker's Mammals of the World
[0455] Virginia Hayssen et al. (1993), Asdell's Patterns of Mammalian Reproduction: A Compendium of Species-Specific Data
[0887] Silberberg et al. (1989), Age-related changes in fibronectin in annulus fibrosus of the sand rat (Psammomys obesus) (PubMed)
[0886] Silberberg (1988), Histologic and morphometric observations on vertebral bone of aging sand rats (PubMed)
[0884] Ulmansky et al. (1984), Dental abnormalities in aging sand rats (Psammomys obesus) (PubMed)
[0731] Zullinger et al. (1984), Fitting sigmoid equations to mammalian growth curves
[0885] Silberberg et al. (1979), Degeneration of the intervertebral disks and spondylosis in aging sand rats (PubMed)