by Juveriya Israr  and Ajay Kumar

Received: 03 August 2024;  Published: 24 February 2025;  doi: 10.21926/obm.transplant.2501236

COVID-19 has presented considerable health hazards, particularly for immunocompromised persons, such as kidney transplant recipients. This population experiences increased susceptibility due to the immunosuppressive treatments necessary to avert organ rejection, potentially resulting in a diminished immune response to immunizations. The implementation of COVID-19 vaccinations has been essential in alleviating these dangers. Studies demonstrate differing levels of vaccine efficacy among kidney transplant recipients, [...]

by Ashwini Arjuna  , Deepika Razia  , Devika Sindu  , Michael T. Olson  , Lara Schaheen  , Ross M. Bremner  , Rajat Walia  and Kendra McAnally

Received: 25 October 2022;  Published: 06 January 2023;  doi: 10.21926/obm.transplant.2301173

Few reports have described successful lung transplantation from a donor with a history of SARS-CoV-2 infection, and outcomes beyond 3 to 6 months remain unknown. After weighing the urgency and life-saving benefits of lung transplantation against the risk of viral transmission, we successfully performed a bilateral lung transplant from a donor with confirmed SARS-CoV-2 infection with mild symptoms 2 months before donation. At 1 year after transplant, there is no evidence of donor-derived viral transmission, and allo [...]

by Rouvick M Gama  , Mysore Phanish  , Abbas Ghazanfar  and Debasish Banerjee

Received: 09 January 2023;  Published: 23 May 2023;  doi: 10.21926/obm.transplant.2302185

Despite preventative measures, including vaccination, severe acute respiratory syndrome coronavirus (SARS-CoV-2) infection may result in severe illness, particularly in immunosuppressed transplant recipients. This has had a negative impact on organ donation and transplantation rates. However, the risk of transmission from SARS-CoV-2 positive donors to kidney transplant recipients is unknown. We describe 2 cases of successful kidney transplantation from SARS-CoV-2 positive donors. Case 1: 38-year old unvaccinated fe [...]

by Sabrine Mekni  , Lamia Torjemane  , Malek Khayati  , Dorra Belloumi  , Rimmel Yosra Kanoun  , Insaf Ben Yaiche  , Rihab Ouerghi  , Ines Turki  , Saloua Ladeb  , Tarek Ben Othman  and Nour Ben Abdeljelil

Received: 29 June 2024;  Published: 11 November 2024;  doi: 10.21926/obm.transplant.2404226

Allogeneic hematopoietic stem cell transplantation (Allo-HSCT) remains the only curative treatment for bone marrow failure (BMF) and hematologic complications of Fanconi anemia (FA). The evolution remains affected by the toxicity, the risk of graft failure, and clonal evolution. This study aimed to identify factors affecting outcomes in FA patients after allo-HSCT. We included FA patients who underwent allo-HSCT between January 2006 and December 2021. The conditioning regimen was cyclophosphamide/fludarabine (Cy/Fl [...]

by OBM Transplantation Editorial Office

Received: 04 January 2021;  Published: 06 January 2021;  doi: 10.21926/obm.transplant.2101132

The editors of OBM Transplantation would like to express their sincere gratitude to the following reviewers for assessing manuscripts in 2020. We greatly appreciate the contribution of expert reviewers, which is crucial to the journal's editorial process. We aim to recognize reviewer contributions through several mechanisms, of which the annual publication of reviewer names is one. Reviewers receive a voucher entitling them to a discount on their next LIDSEN publication and can download a certificate of recogni [...]

by OBM Transplantation Editorial Office

Received: 09 October 2022;  Published: 17 October 2022;  doi: 10.21926/obm.transplant.2204167

by Andrés R. Latorre-Rodríguez  , Devika Sindu  , Sumeet K. Mittal  and Ashwini Arjuna

Received: 23 February 2024;  Published: 21 June 2024;  doi: 10.21926/obm.transplant.2402219

Activated pepsin (pepA) in bronchoalveolar lavage (BAL) fluid may be a biomarker of gastric aspiration. We sought to i) evaluate the association of pepA in BAL fluid with acute cellular rejection (ACR) in a cohort of lung transplant recipients (LTRs), ii) assess the association between pepA and isolation of typical gastrointestinal microorganisms from BAL fluid, and iii) explore the accuracy of using pepA concentration as a biomarker of ACR. After IRB approval, we conducted a retrospective observational study analy [...]

by Nasrin Motazedian  , Masoud Mokhtari  , Negar Azarpira  , Kimia Falamarzi  , Mohsen Mohammadi  , Seyed Mohsen Dehghani  , Sarina Pourjafar  , Maryam Ataollahi  , Elaheh Esfandiari  , Mahdokht Hossein-Aghdaie  , Seyed Ali Malekhosseini  , Tayebeh Kazemi  and Mahintaj Dara

Received: 05 May 2024;  Published: 04 June 2024;  doi: 10.21926/obm.transplant.2402217

Crigler-Najjar syndrome (CNS) is a rare autosomal recessive disorder characterized by impaired bilirubin metabolism, leading to neurotoxic unconjugated bilirubin accumulation. Liver transplantation remains the only effective treatment, highlighting the need for novel diagnostic and therapeutic approaches. Long non-coding RNAs (lncRNAs) have emerged as potential biomarkers in various diseases, including cancer. This study aimed to evaluate the expression of lncRNAs HOTTIP and HOTAIR in CNS patients and healthy contr [...]

by Koji Kawago  , John A Farag  , Yujiro Kawai  , Umayr Syed  , Eric Pfrender  , Satoshi Miyairi  and Yasuhiro Shudo

Received: 21 October 2024;  Published: 14 March 2025;  doi: 10.21926/obm.transplant.2501242

Heterotopic heart transplantation (HHT) in rats is a valuable tool for cardiac transplantation research. While abdominal HHT has been established in rats for nearly 90 years, novel approaches involving cervical and femoral techniques have also been explored. The abdominal HHT model, despite its long history, is technically demanding and has a steep learning curve. In contrast, the cervical HHT model enables surgeons with more basic microsurgical skills to achieve competency more quickly while producing comparable o [...]

by Francesco Peracchi  , Giovanna Travi  , Marco Merli  , Roberto Rossotti  , Fulvio Crippa  and Massimo Puoti

Received: 14 June 2023;  Published: 01 December 2023;  doi: 10.21926/obm.transplant.2304204

SARS-CoV-2 infection has significantly impacted solid organ transplant (SOT) recipients, who are at high risk of disease and worse outcomes. Moreover, therapeutic management in this population is not precise yet. Our study aimed to evaluate the overall survival of SOT recipients and predictive factors for mortality. We also aimed to assess the impact of antiviral treatments and immunosuppressant changes on overall mortality and to evaluate the length of hospital stay of SOT compared to the general population. This [...]

by Ahmad R. Alsayed  and Yazan Alsayed

Received: 26 August 2024;  Published: 25 February 2025;  doi: 10.21926/obm.transplant.2501237

This study was designed to investigate the ability of telemonitoring involving a secure electronic database called “Alsayed System for Applied Medical-Care Improvement” (ASAMI) to detect at least 95% of acute exacerbations of chronic obstructive pulmonary disease (AECOPD). This prospective observational study, which took place over 16 months in 2022-2023, was based at a medical center in Jordan. The study group participants were patients with COPD (from seven countries) with mixed levels of airflow limitation sever [...]

by Rahul F. Gomez  , Aarya Kafi  , Gordon Yung  , Saima Aslam  , Christine M. Lin  , Travis Pollema  , Eugene Golts  and Kamyar Afshar

Received: 15 October 2023;  Published: 28 April 2024;  doi: 10.21926/obm.transplant.2402213

Lung Transplant Recipients (LTR) are particularly vulnerable to severe infection, hospitalization, and death due to community acquired respiratory viruses. As a result, the global SARS-Cov-2 pandemic poses a higher risk to this population. We aim to study the lung function, severity of infection and mortality among LTR at a single center. A retrospective chart review was performed on all LTR at the University of San Diego, California Medical Center between June 2020 and September 2022. Spirometry was performed at 1 [...]

by Tessa M. Andermann  , Ke Zeng  , Sayal Guirales-Medrano  , Adam Groth  , Bhanu C. Ramachandran  , Shan Sun  , Alicia A. Sorgen  , Lauren Hill  , Amy T. Bush  , Hongwei Liu  , Corbin Jones  , Jeffrey Roach  , Brian P. Conlon  , Gauri Rao  , Nelson J. Chao  , Anthony A. Fodor  and Anthony D. Sung

Received: 24 April 2025;  Published: 25 August 2025;  doi: 10.21926/obm.transplant.2503255

Home-based hematopoietic stem cell transplantation (HCT) is an innovative care model with growing interest, but its impact on the gut microbiome remains unexplored in a randomized setting. We present interim results from the first randomized controlled trials (RCT) evaluating the effect of HCT location—home versus hospital—on gut microbial diversity and antimicrobial resistance (AMR) gene carriage. We hypothesize that patients randomized to undergo home HCT would have higher gut taxonomic diversity and lower AMR ge [...]

by Alan M Iwahashi  , Samantha H Garvanovic  , Uoo R Kim  and Melissa D McCabe

Received: 29 August 2024;  Published: 20 March 2025;  doi: 10.21926/obm.transplant.2501243

Spontaneous coronary artery dissection (SCAD) accounts for one-third of all peripartum myocardial infarction. Peripartum SCAD is associated with increased severity. We surmise that altered maternal cardiac physiology increases susceptibility to SCAD and warrants consideration when managing cardiac ischemia. One week after vaginal delivery, a 35-year-old woman with no known medical history developed multivessel SCAD and cardiogenic shock after attempted percutaneous coronary intervention, requiring rescue CABG and p [...]

by A. Isabella Shanker  , Lauren T. Maloney  and Julia M. Boster

Received: 23 September 2024;  Published: 10 January 2025;  doi: 10.21926/obm.transplant.2501230

Infection is a leading cause of short-term morbidity and mortality in pediatric patients after liver transplant (LT). Diagnosing infection in this population can be challenging, requiring consideration of laboratory results and clinical context. The prevalence and significance of post-operative leukocytosis has not yet been explored in children after LT. Our goals were to characterize post-transplant leukocytosis in pediatric patients after LT for biliary atresia (BA) and evaluate the relationship between post-LT l [...]

by OBM Transplantation Editorial Office

Received: 04 January 2023;  Published: 04 January 2023;  doi: 10.21926/obm.transplant.2301172

The editors of OBM Transplantation would like to express their sincere gratitude to the following reviewers for assessing manuscripts in 2022. We greatly appreciate the contribution of expert reviewers, which is crucial to the journal’s editorial process. We aim to recognize reviewer contributions through several mechanisms, of which the annual publication of reviewer names is one. Reviewers receive a voucher entitling them to a discount on their next LIDSEN publication and can download a certificate of recog [...]

by Tamer A. Addissouky

Received: 25 May 2025;  Published: 09 September 2025;  doi: 10.21926/obm.transplant.2503257

Liver and lung transplantation remain among the most intricate and resource-intensive arenas in modern medicine, challenged by organ scarcity, immunological complexities, and the persistent threat of rejection. According to recent WHO and UNOS reports, approximately 100,000 patients globally await liver transplants annually, with only 30-40% receiving transplants, resulting in waitlist mortality rates of 15-20%. Similarly, lung transplant demand exceeds supply by a factor of 4:1, with 5-year survival rates remainin [...]

by Maria V. Fonseca Bauza  , Aimee H. Dubin  , Chris B. Agala  , Alexander H. Toledo  , Kristen R. Szempruch  , David A. Gerber  and Pablo Serrano Rodriguez

Received: 06 December 2024;  Published: 27 February 2025;  doi: 10.21926/obm.transplant.2501238

To evaluate the bleeding risk associated with anticoagulation (AC) in kidney transplant patients with post-operative atrial fibrillation (AF). We conducted a retrospective analysis of all adult kidney transplant recipients performed from October 2012 to February 2019 at our institution, the University of North Carolina at Chapel Hill, which accounted for 428 transplants. Variables assessed included AF occurrence, AC use, bleeding complications, stroke and bleeding risk stratification in AF (determined using CHA2DS2 [...]

by Elga Johanna Vargas  , Ana Luisa Muñoz  and Lina Andrea Gómez

Received: 21 May 2024;  Published: 13 August 2024;  doi: 10.21926/obm.transplant.2403223

Platelets were the last to be discovered of the three formed blood elements. Several scientists have been interested in them, recognizing them as cells other than leukocytes and erythrocytes. Its job in hemostasis and thrombosis is currently known. Platelets contain growth factors and secrete cytokines, which have roles in inflammation and tissue regeneration processes. This is why platelet concentrates have been widely used in regenerative medicine, an emerging field that involves biomolecules, cells, and scaffold [...]

by Manish Suryapalam  , Jay Kanaparthi  , Shineui Kim  , Pedram Shafiei-Jahani  , Armeen Barghi  and Mohammed Kashem

Received: 10 November 2024;  Published: 11 June 2025;  doi: 10.21926/obm.transplant.2502252

While heart transplantation is increasingly performed in the United States for elderly patients, survival outcomes have primarily been analyzed in single-center studies. The few existing long-term studies have indicated no difference in HTx outcomes between patients ≥70 years and 60-69 years age, but these studies only assessed to 5-years post-transplant and included data from the 1980-90s, introducing significant variance due to poorer outcomes in that era. We analyzed the UNOS database from 1987-2020, stratified [...]

by Garzain Bint e Attar  and Mohd. Ashif Khan

Received: 15 May 2025;  Published: 31 December 2025;  doi: 10.21926/obm.transplant.2504262

Bone grafting remains a cornerstone technique in orthopedic and reconstructive surgery, yet achieving successful graft integration continues to pose significant challenges, particularly in conditions such as osteoporosis, diabetes mellitus, and large bone defects. Traditional graft materials such as autografts, allografts, xenografts, and synthetics, often encounter limitations including immune rejection, poor vascularization, and insufficient osteogenic support. Emerging pharmacological strategies have shown promi [...]

by Jessica Palacios  , Odin Ramírez-Fernández  and Esmeralda Zuñiga-Aguilar

Received: 22 August 2024;  Published: 07 March 2025;  doi: 10.21926/obm.transplant.2501240

Tissue engineering offers alternatives when it comes to health problems such as trauma or pathologies. One of them is the scaffolds, which provide a favorable architecture, mechanics, and biocompatibility for the fixation of cells. Therefore, the following research aims to design and simulate scaffolds with mixed geometric structures to create a hybrid architecture for osseointegration while maintaining structural properties similar to subchondral bone and hyaline cartilage. Three scaffolds were designed for this p [...]

by Moussa Hamidani  , Salah Aberkane  and Moudjahid Aissaoui

Received: 17 December 2024;  Published: 16 May 2025;  doi: 10.21926/obm.transplant.2502249

Although immunosuppressive drugs are essential and effective in improving the health status of renal transplant patients, they also make them more vulnerable to the risk of infection with COVID-19, which has become a significant concern for many patients. Perhaps this is what makes their way of thinking and perception impact their adherence to taking immunosuppressants. Therefore, this study reveals the possibility of an impact of illness perception and some sociodemographic and clinical factors on treatment adhere [...]

by Sara Evans  , Ariba Moin  and Ashwini Arjuna

Received: 13 June 2024;  Published: 09 April 2025;  doi: 10.21926/obm.transplant.2502246

Varicella-zoster virus (VZV) significantly impacts the central and peripheral nervous systems, particularly in immunocompromised individuals. This case report details a rare presentation of VZV meningoencephalitis in a 42-year-old woman with interstitial lung disease and connective tissue disease undergoing lung transplant evaluation who presented with a thunderclap headache and a new-onset seizure. Despite normal initial MRI findings, further investigation with PCR of the cerebrospinal fluid (CSF) revealed the pre [...]

by Michael Y. Shino  , Francisco Javier Ibarrondo  , Jesse L. Clark  , Adreanne Rivera  , Marlene Florian  , Allison Ramsey  , Ariss Derhovanessian  , Rajan Saggar  , Olawale O. Amubieya  , Grant Turner  , Joanna M. Schaenman  , Pryce T. Gaynor  , Omer E. Beaird  , Ashrit Multani  , Reshma M. Biniwale  , Murray H. Kwon  , Christos J. Petropoulos  , Yolanda Lie  , Terri Wrin  , Amparo L. Figueroa  , Brett Leav  , Zelalem Endale  , Kate Anteyi  , Jacqueline M. Miller  , Abbas Ardehali  , David M. Sayah  , David Elashoff  , John A. Belperio  , Otto O. Yang  and S. Sam Weigt

Received: 16 August 2024;  Published: 20 November 2024;  doi: 10.21926/obm.transplant.2404227

Higher-dose mRNA booster vaccines have not been well studied for transplant recipients. This study evaluated the safety, reactogenicity and immunogenicity of higher dose mRNA-1273 booster vaccines among lung transplant recipients (LTRs). This phase 1/2 open-label randomized clinical trial of higher-dose mRNA-1273 booster vaccination enrolled nineteen adult LTRs into the 50 µg (n = 8) vs. 100 µg (n = 11) groups before enrollment was terminated due to the availability of the bivalent mRNA-1273.222 vaccine [...]