Our results suggest that neointimal cells in the rat balloon injury model mostly derive from pre-existing vascular cells and that only a small population of those cells come from BM-derived progenitors.

Our findings strongly suggest that the severity of age-related neointima formation is primarily determined by the recipient's age rather than the donor's age. Therefore, in addition to focusing on donor-specific tolerance induction, strategies aiming at increasing the lifespan of vascularized organ grafts also have to take into consideration the recipient's aging milieu.

Aortic dissection is an uncommon diagnosis that typically presents with acute onset of severe pain. It rarely presents with minimal to no symptoms, which carries a higher mortality risk given the delay in diagnosis. An adequate interpretation of risk factors, clinical findings and auxiliary tests constitutes a greater value for clinicians to detect this life-threatening condition. This report describes a case of type A aortic dissection in an asymptomatic patient presenting with an abnormal electrocardiogram (ECG).

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