Patient factors influencing the concentration of stromal vascular fraction (SVF) for adipose-derived stromal cell (ASC) therapy in dogs
2013
Astor, Donniel E. | Hoelzler, Michael G. | Harman, Robert | Bastian, Richard P.
The objective of this study was to determine whether patient factors influence the concentration of the stromal vascular fraction (SVF) in fat for adipose-derived stromal cell (ASC) therapy in dogs. A total of 1265 dogs underwent adipose collection surgeries by veterinarians for processing by the Vet-Stem laboratory and data on cell counts and patient factors were collected. Body condition score (BCS) and breed size did not significantly affect the viable cells per gram (VCPG) of adipose tissue that represents the viable SVF. Age significantly affected the VCPG, with dogs in age quartile 1 having a significantly higher VCPG than those in quartile 2 (P = 0.003) and quartile 4 (P = 0.002). Adipose tissue collected at the falciform location had significantly fewer VCPG than tissue collected at the thoracic wall and inguinal locations (P < 0.001). When the interaction of gender and location was evaluated, there were significantly fewer VCPG in tissue collected at the falciform location than at the thoracic wall and inguinal locations in female spayed dogs (P < 0.001) and male neutered dogs (P < 0.001), but not in female intact dogs (P = 0.743) or male intact dogs (P = 0.208). It was concluded that specific patient factors should be taken into consideration in order to obtain the maximal yield of VCPG from an adipose collection procedure.
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