Preemptive antiviral therapy in transplant patients is thought to be less likely to lead to antiviral resistance than is routine prophylaxis. Cytomegalovirus (CMV)-seropositive lung transplant patients (R+) were assigned to receive pp65 antigen-guided ganciclovir therapy, and seronegative recipients of organs from seropositive donors (D+/R-) were assigned to receive initially preemptive and then routine ganciclovir prophylaxis. The incidence of infection with ganciclovir-resistant (ganR) CMV was assessed retrospectively. GanR CMV infection developed in 4 (9%) of 45 patients, at a median of 4.4 months (range, 3.1-6.6 months) after transplantation, and was more common among D+/R- patients than among R+ patients (3 of 11 vs. 1 of 34; P =.04). The incidence among patients who received preemptive therapy was similar to that among patients who received routine prophylaxis. All ganR isolates contained a UL97 mutation. GanR CMV infection occurs in nearly 10% of lung transplant recipients, despite preemptive antiviral therapy, and is more common among D+/R- patients.
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http://dx.doi.org/10.1086/338143 | DOI Listing |
BMC Infect Dis
January 2025
Department of Respiratory Medicine, Faculty of Medicine, Hokkaido University, North 15 West 7, Kita-ku, Sapporo, 060-8638, Japan.
Background: Mycobacterium avium complex (MAC) is a common pathogen causing non-tuberculous mycobacterial infections, primarily affecting the lungs. Disseminated MAC disease occurs mainly in immunocompromised individuals, such as those with acquired immunodeficiency syndrome, hematological malignancies, or those positive for anti-interferon-γ antibodies. However, its occurrence in solid organ transplant recipients is uncommon.
View Article and Find Full Text PDFAnn Allergy Asthma Immunol
January 2025
Center for Drug Safety and Immunology, Vanderbilt University Medical Centre, Nashville, Tennessee, USA; Institute for Immunology and Infectious Diseases, Murdoch University, Murdoch, Western Australia, Australia.
Background: Donor acquired allergy (DAA) occurs when donors transfer their allergies to recipients through solid organ transplant (SOT). However, the risk of DAA in recipients of organs from allergic donors has not been systematically characterized.
Objective: We sought to synthesize the available evidence on the risk of DAA in SOT recipients.
EBioMedicine
January 2025
Institute of Immunology, Hannover Medical School, Hannover, Germany; Cluster of Excellence RESIST (EXC 2155), Hannover Medical School, Hannover, Germany; German Centre for Infection Research, Partner Site Hannover-Braunschweig, Hannover, Germany. Electronic address:
Background: Aging increases disease susceptibility and reduces vaccine responsiveness, highlighting the need to better understand the aging immune system and its clinical associations. Studying the human immune system, however, remains challenging due to its complexity and significant inter-individual variability.
Methods: We conducted an immune profiling study of 550 elderly participants (≥60 years) and 100 young controls (20-40 years) from the RESIST Senior Individuals (SI) cohort.
Life (Basel)
December 2024
Division of Thoracic Surgery, IRCCS Azienda Ospedaliero Universitaria Di Bologna, Via Albertoni 15, 40138 Bologna, Italy.
(1) Background: Ex Vivo Lung Perfusion (EVLP) is a technique designed to assess and recondition marginal lungs, potentially expanding the donor pool and improving transplant outcomes (2) Methods: This retrospective study evaluated lung transplantation outcomes after EVLP. Donor lungs were assessed using the Toronto protocol, with data on hemodynamics, gas exchange, and perfusion parameters collected and analyzed. Post-transplant complications and survival rates were also examined.
View Article and Find Full Text PDFMicroorganisms
January 2025
Infectious and Tropical Diseases Unit, Padua University Hospital, 35128 Padua, Italy.
Background: Despite kidney transplantation being a life-saving procedure, patients experience a high risk of developing fungal infections (FIs), with an increased risk of both morbidity and mortality, especially during the first year after transplant.
Methods: We herein conducted a narrative review of the most common FIs in kidney transplant recipients (KTRs), with a focus on prevalence, risk factors, mortality, and prevention strategies.
Results: The most common fungal pathogens in KTRs include species (up to 70% of the overall FIs), species, , and species.
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