Articles tagged with Transplantation
Researchers from Nagoya University have successfully treated rare genetic skin disorders epidermolytic ichthyosis (EI) and ichthyosis with confetti (IWC) by transplanting genetically healthy skin to inflamed areas. Transplantation of healthy skin has been used as a treatment option for severe burn injuries.
Scientists from Tokyo Medical and Dental University successfully generate autologous skin grafts by introducing mutations into mouse embryos, which then form sheets of epidermis containing hair follicles. These grafted skin patches survive up to 3 months and mimic mature epidermis structure.
A recent study by Dr. Zhaohua Jiang successfully demonstrated VLNT's effectiveness in reconnecting the lymphatic system and improving patient outcomes. The procedure involves transplanting healthy lymph nodes into the affected area, promoting regeneration and reconnection of lymphatic vessels.
Receiving a kidney from a deceased donor who underwent dialysis prior to donation was associated with delayed graft function, while other factors such as graft failure and death were not significantly affected. The study found no significant differences in outcomes between these two groups.
Researchers at Clemson University have developed a simulation-based optimization approach to overcome challenges in vitrification of larger tissues. The new technology results in high viability rates for vitreous grafts, making them suitable for transplantation.
A study published in JAMA found that Black candidates have lower heart offer acceptance rates compared to white candidates of the same gender, while women have higher acceptance rates than men. These disparities persist after adjusting for various factors, highlighting the need for further investigation into site-level decision-making.
A multi-institutional team is creating innovative technologies to reduce complications associated with left ventricular assist devices (LVADs), including infection, thrombosis, stroke, and bleeding. The new LVAD will deliver a physiological response to changes in the recipient's activity levels using a 'smart' Maglev drive technology.
A novel risk score predicts cardiovascular complications after bone marrow transplant with high accuracy, helping guide patient selection and post-transplant management. Patients with preexisting cardiovascular conditions are more likely to experience long-term complications.
A new study found that dialysis facilities serving high-risk populations are more likely to receive lower reimbursement under the End-Stage Renal Disease Treatment Choices Model. The rate of home dialysis and transplant waitlisting is also lower among these facilities.
Researchers found that pulse oximeters underestimate blood pumping and overestimate resistance, affecting treatment decisions. Direct blood oxygen measurement is crucial for accurate guidance, especially for Black patients already at higher risk.
Segregated neighborhoods contribute to racial disparities in live donor kidney transplantation. Targeted interventions, such as community outreach clinics, can help mitigate these effects and promote equitable access.
A team of researchers from Texas Heart Institute and Baylor College of Medicine have made a significant discovery about the underlying molecular cell states within transplanted pediatric hearts. They found that donor-derived tissue-resident macrophages are crucial for graft acceptance, but their loss leads to allograft failure.
A study suggests that a pain relief drug can quickly and reversibly induce a sleep-like state in cells and organs, facilitating organ transplantation and preventing irreversible tissue injury. The research found that the drug SNC80 can slow biochemical and metabolic activities while preserving cell and tissue viability.
Researchers found combining common immune-suppressing drugs with a complement inhibitor effectively managed the initial human immune response against transplanted pig kidneys. The regimen, which relies solely on already FDA-approved medications, showed remarkable success in Parsons model case series.
UCLA surgeons and scientists present research on ethnic predictors of gastric cancer survival, early liver retransplantation and risk factors for chemical restraint use in adult trauma patients. The studies highlight the importance of understanding these factors to improve patient care.
Researchers at UMCG have successfully performed liver transplants after prolonged preservation using a perfusion machine, showing similar outcomes to immediate transplants. The new method allows for safer and more efficient liver transplantation during the day, reducing complications and mortality rates.
Researchers found that specific microbes in the gut reduce graft versus host disease after stem cell transplantation. Patients with low microbial metabolite risk index had better survival rates, fewer graft vs. host reactions, and reduced relapses.
Researchers found that higher levels of omega-3 fatty acids in the blood plasma were associated with better lung function and longer survival without needing a lung transplant. This was consistent regardless of smoking history or cardiovascular disease.
A Learning Health System model is being developed to increase organ donation and reduce disparities in access to transplantation. The project, led by Hennepin Healthcare Research Institute, will use data tools to track progress and improve equity in organ donation across the US.
Researchers from Brazil discuss the management of refractory or relapsed classic Hodgkin lymphoma in adults, highlighting novel agents such as brentuximab vedotin and immunotherapy. The Brazilian healthcare system's constraints are also considered when making treatment decisions.
A study of 57,000 adults reveals racial disparities in access to living donor kidney transplants, highlighting the need for targeted interventions. The findings emphasize the importance of addressing systemic inequalities in transplant programs and centers.
A new study provides an updated assessment of hepatorenal syndrome-acute kidney injury (HRS-AKI), a potentially reversible but often fatal condition. The study's findings highlight the importance of early recognition and standard pharmacological treatment, with only 40%–50% of patients experiencing restored kidney function.
Researchers transplanted gut microbes from a naturally obesity-resistant shrew to high-fat-diet-induced obese mice, improving microbiome diversity. This approach resulted in decreased weight gain in the obese mice, suggesting potential therapeutic benefits for human obesity.
A novel multicomponent intervention aimed at improving patient access to kidney transplants did not significantly increase the rate of completed steps in a randomized clinical trial involving 20,375 patients. The study highlights the need for sustained efforts to address barriers to transplantation globally.
Scientists from Central South University develop a novel approach to address bacterial infection in bone transplantation by enriching H2O2 and amplifying the Fenton reaction. The technique enhances biocompatibility and safety, promising reduced transplant failures and post-operative complications.
Scientists have discovered a suitable combination of chemical compounds that can preserve adult zebrafish hearts for up to 5 days at -10°C. This breakthrough could potentially be used for the preservation of other organs before transplantation, revolutionizing organ donation and increasing the chances of successful transplants.
Researchers at the University of Birmingham found that individuals with fatty liver disease are three times more likely to have a personality disorder than those without. Lifestyle modifications, such as changes in diet and exercise, can prevent disease progression but often fail to be implemented due to mental health factors.
A new study found that living donor liver transplant access optimizes the timing of transplant for older, frail cirrhosis patients. Patients with moderate to severe frailty, short stature, and low MELD scores benefited from LDLT, reducing waitlist mortality and improving post-transplant outcomes.
A team of researchers identified a protein called RAC2 that appears to drive the foreign body response, which causes the body to reject biomedical implants. Suppressing production of this protein could reduce the risk of implant rejection and improve the design and safety of implants.
A recent study published in the American Journal of Kidney Diseases found that lower uromodulin levels are associated with a higher risk of developing end-stage kidney disease. Participants who experienced steeper declines in uromodulin also showed an increased risk of kidney failure.
Researchers at UW–Madison and Stanford University developed a new approach to increase donor and recipient biocompatibility, inducing tolerance in transplanted kidneys. Two monkeys with just one match among key protein strings maintained chimeric immune systems for over four years without rejection or graft-versus-host disease.
A new device developed by Northwestern University researchers can detect temperature irregularities associated with inflammation and other body responses that arise with transplant rejection. This allows for earlier intervention, improving patient outcomes and increasing the odds of preserving donated organs.
Researchers at Duke University Medical Center developed a new monoclonal antibody that successfully prevented organ rejection in primates undergoing kidney and islet transplantations. The findings suggest a safer alternative to existing immunosuppressive drugs, reducing side effects and improving graft survival rates.
A new matching system enabled by Boston College economists facilitates the world's first four-way liver exchange and a cascade of additional matches. The system increases the number of transplants that can be matched among a larger group of participants, expanding capacity beyond traditional two-way exchanges.
Researchers have found that mouse stem cells mimic their parent animals' cold resistance, generating energy differently at low temperatures. This discovery opens up new avenues for studying organ preservation and human hibernation using in vitro models.
Hematopoietic stem cell culture technology improves genome editing in HSCs by increasing successful correction rates to 100%, eliminating genetic mutations, and enhancing cell transplantation outcomes. This breakthrough enhances the efficiency and safety of gene editing in treating genetic diseases.
This study demonstrates the potential of cell therapy using genome-edited iPS cells secreting therapeutic molecules, such as mNAGA, to supply GLA activity in vivo. Transplantation of these cells improved GLA activity in the liver, but not in other organs, and future enhancements are possible through genome editing.
A new AI tool utilizing deep-learning algorithms and volumetric thresholds accurately detected splenomegaly in patients undergoing CT scans. The study analyzed a large sample of 8,901 patients, revealing that splenic volume is strongly associated with weight.
Researchers investigated premature senescence in biliary atresia and assessed senotherapies. They found that human allogenic liver-derived progenitor cells reduced early markers of senescence and improved liver disease in a preclinical model, providing encouraging results for pediatric biliary cirrhosis treatment.
The new scientific statement highlights the importance of identifying the root cause of pediatric cardiomyopathy to develop effective treatment strategies. Genetic testing is recommended for all children with cardiomyopathy, which may lead to financial and emotional cost savings.
Survivors of firearm injury experience chronic PTSD symptoms and poor health-related quality of life, emphasizing the need for comprehensive care. Screening for chronic kidney disease could be cost-effective for US adults starting at age 35.
A study found that heart transplant patients receiving organs from active COVID-19 positive donors had increased risk of death at six months and one year compared to those receiving organs from recently recovered COVID-19 patients and COVID-19 negative patients.
A UNIGE team has developed small beads encapsulating fecal bacteria for treating a serious intestinal infection. The technology overcomes obstacles in current treatments, allowing for easier and more comfortable administration.
Researchers found that heavy alcohol use and the presence of metabolic syndrome were associated with a higher risk for advanced liver disease. The study suggests an increasing interaction effect between MetS, heavy alcohol use, and a recent surge in alcoholic liver disease-related mortality.
Keck Medicine of USC has launched a clinical trial to perform the world's first human bladder transplant. The procedure involves removing the patient's diseased bladder and replacing it with a healthy one from a deceased donor. This could be a historic step in improving lives for those with debilitating bladder conditions.
Researchers have developed a non-invasive technique using laser speckle imaging to visualize microvasculature in donor hearts and detect abnormal blood flow. The method enables precise visualization of blood circulation, potentially identifying hearts suitable for transplantation.
A new Cochrane Review found that stool transplantation can increase the number of people recovering from Clostridioides difficile (C. diff) infection by 77%, compared to 40% with standard antibiotic treatment. The study also showed a decrease in side effects with stool transplantation.
Researchers found a genetic variant of TNFAIP3, which regulates inflammation, can paradoxically protect the kidneys from damage in the short term. The study could lead to simple genetic tests for predicting kidney disease risk and personalized treatment approaches.
Medical University of South Carolina researchers streamlined kidney transplant evaluations to increase access for African Americans. They used telehealth and partnerships with local providers to help patients complete the evaluation process, resulting in higher numbers of African Americans beginning and completing the evaluation.
Researchers created the integrated-gut-liver-on-a-chip platform to examine how gut and liver cells interact, particularly in relation to non-alcoholic fatty liver disease. The study showed significant changes in gene expression and DNA damage when free fatty acids were introduced, leading to cell death similar to severe cases of NAFLD.
Researchers link acute severe hepatitis in children to co-infections with multiple common viruses, including AAV2. The study suggests that getting more than one infection may have made children vulnerable to severe hepatitis.
Corneal graft rejection can be as high as 10% due to poor patient compliance with medications, which require frequent eyedrop administrations. Researchers at Virginia Commonwealth University developed nanoparticles to encapsulate eye medication, decreasing graft rejection while requiring fewer and smaller doses. The approach reversed s...
A 53-year-old man has been cured of HIV after receiving a stem cell transplant, marking the third person to achieve this. The patient's genome contained a mutation in the CCR5 gene, making it impossible for most HIV viruses to enter his CD4+ T-lymphocytes.
Researchers analyzed electronic health record data from over 7.1 million children to identify risk factors associated with a faster decline in kidney function, including disease origin, proteinuria, hypertension, and younger age. The study found that certain attributes are linked to a more rapid decline in kidney function, providing va...
Researchers identified HCirV-1 in a patient with unexplained chronic hepatitis, demonstrating its role in liver damage. After treatment, the patient's liver enzymes returned to normal levels, indicating the end of hepatic cytolysis.
A new Pitt study reframes understanding of graft-versus-host disease, suggesting that GVHD is locally maintained by donor T cells in target tissues. The research, published in Immunity, offers an alternative model that could guide development of novel therapies and improve outcomes for stem cell recipients.
A team of researchers from MedUni Vienna has identified the polymeric immunoglobulin receptor (pIgR) as a key player in protecting against alcohol-induced liver damage. The study found that pIgR-mediated secretion of antibodies in the intestines helps to prevent bacterial translocation and inflammation in the liver.
Research from Brigham and Women's Hospital found that genetic analysis can identify up to 65% more A2 donors, increasing potential kidney transplants for recipient candidates with blood type B. This could improve availability and equity in kidney transplantation.
A large cohort study found that long-term low-dose hydroxychloroquine use is associated with a low risk of developing retinopathy, while higher doses increase the risk. Regular screening can identify the issue at an early stage.
A study in Japan reveals that universal screening methods for biliary atresia, a rare and severe lung condition in infants, are cost-effective. The research found that stool color card screening and direct bilirubin testing gained significant clinical benefits and saved lives.