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http://dx.doi.org/10.1016/j.repc.2020.04.006 | DOI Listing |
Transplant Proc
January 2025
Department of Cardiology, Advanced Heart Failure and Heart Transplant Unit, Hospital Universitario Central de Asturias, Oviedo, Spain; Health Research Institute of Asturias, ISPA, Oviedo, Spain.
Introduction: Real-life data on the long-term use of a maintenance immunosuppressive protocol in heart transplant patients using delayed Everolimus + Tacrolimus are scarce.
Methods: This is a retrospective study that included all heart transplant patients from 2011 to 2021 in two Spanish hospitals. In Hospital A, the preferred immunosuppressive strategy included Everolimus initiation at 2 months post-transplant combined with Tacrolimus and was compared with the results of Hospital B, where a standard Tacrolimus and Mycophenolate mofetil protocol was used.
Proc Natl Acad Sci U S A
January 2025
Center for Mitochondrial and Epigenomic Medicine, The Children's Hospital of Philadelphia, Philadelphia, PA 19104.
Mitochondrial DNA (mtDNA) is highly polymorphic, and host mtDNA variation has been associated with altered cancer severity. To determine the basis of this mtDNA-cancer association, we analyzed conplastic mice with the C57BL/6J (B6) nucleus but two naturally occurring mtDNA lineages, and , where mitochondria generate more oxidative phosphorylation (OXPHOS)-derived reactive oxygen species (mROS). In a cardiac transplant model, Foxp3+ T regulatory (Treg) cells supported long-term allograft survival, whereas Treg cells failed to suppress host T effector (Teff) cells, leading to acute rejection.
View Article and Find Full Text PDFNat Cardiovasc Res
January 2025
Department of Pathology, Northwestern University, Chicago, IL, USA.
Myocardial infarction (MI) mobilizes macrophages, the central protagonists of tissue repair in the infarcted heart. Although necessary for repair, macrophages also contribute to adverse remodeling and progression to heart failure. In this context, specific targeting of inflammatory macrophage activation may attenuate maladaptive responses and enhance cardiac repair.
View Article and Find Full Text PDFJ Heart Lung Transplant
December 2024
Van Cleve Cardiac Regenerative Medicine Program, Mayo Clinic, Rochester MN, 55905; Deparment of Cardiovascular Medicine, Mayo Clinic, Rochester MN, 55905. Electronic address:
Background: Although recommended in International Society for Heart and Lung Transplantation (ISHLT) guidelines, transition to mammalian targets of rapamycin (mTOR) inhibitors in heart transplant recipients is not routinely performed, in part due to perceived risk of rejection. This study sought to evaluate the incidence and risk factors for biopsy-proven, clinically relevant rejection following conversion from calcineurin inhibitor (CNI) to sirolimus (SRL) immunosuppression.
Methods: A single center retrospective study was conducted of all consecutive adult patients who underwent orthotopic heart transplantation (OHT) and CNI-free SRL conversion from January 1999 to January 2023.
J Heart Lung Transplant
December 2024
Seymour, Paul, and Gloria Milstein Division of Cardiology, Department of Medicine, Columbia University Irving Medical Center/NewYork-Presbyterian Hospital, New York, NY.
Background: Cardiac allograft vasculopathy (CAV) results in impaired blood flow in both epicardial vessels and the microvasculature and is a leading cause of poor outcomes in heart transplant (HT) recipients. Most patients have mild (ISHLT CAV 1) disease. This study examined outcomes amongst those with ISHLT CAV 1 and investigated the value of physiologic assessment via cardiac positron emission tomography/computed tomography (PET/CT) for added risk stratification.
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