OBJECTIVETo test the effects of autologous skeletal myoblast transplantation on the hemodynamics in dogs with coronary microembolization-induced chronic heart failure (CHF).

METHODSCHF models were successfully induced in 19 dogs and divided into ASMT group (n=9) and control group (n=10). The myoblasts were injected into the embolized region in the 9 dogs of the ASMT group, and saline was injected in the control dogs, and the hemodynamics of the dogs were evaluated 5 weeks after the injections.

RESULTCompared with saline injection, ASMT significantly increased dP/dtmax, MAP and LVSP (P<0.05) and decreased LVEDP (P<0.05) 5 weeks after myoblast transplantation. Desmin and Brd-U immunofluorescent staining showed myoblast survival at the injected sites in the dogs.

CONCLUSIONASMT provides mild improvements in the hemodynamics of dogs with CHF.

Animals ; Chronic Disease ; Dogs ; Female ; Heart Failure ; physiopathology ; therapy ; Hemodynamics ; Male ; Myoblasts, Skeletal ; transplantation ; Transplantation, Autologous