Donor-Derived Transmission of Scedosporiosis in Kidney Transplant Recipients from a Systemic lupus erythematosus donor

Donor-derived infection(DDI)associated with Scedosporium spp is extremely rare,and results in a very poor prognosis.The present study reports a probable DDI due to Scedosporium boydii(S.boydii)from a donor with neuropsychiatric systemic lupus erythematosus.Two recipients developed Scedosporiosis after kidney transplantation from the same donor.Recipient 1 died of central nervous system infection due to S.boydii based on the clinical presentations,and the positive metagenomic next-generation sequencing(mNGS)and culture results for the cerebrospinal fluid.The other recipient with urinary tract obstruction due to S.boydii,which was identified through the positive culture and mNGS results of the removed stents,was successfully treated by stent replacement and voriconazole administration.Undiagnosed disseminated donor infection and the transmission of S.boydii should be given attention,particularly when the donor and recipients have primary immunodeficiency disease.The screening of donors and recipients for S.boydii using mNGS may be helpful in guiding antifungal prophylaxis and treatment recipients,due to its higher sensitivity and shorter diagnostic time relative to other traditional techniques.

Biosafe,rapid,and ultrahigh-capacity endotoxin purification in blood by a sustainable and recyclable MOF-functionalized chitin microsphere adsorbent

Sepsis is responsible for approximately 5.3 million deaths globally each year.Here,we constructed hierarchical chitin microspheres loaded with MOF-919(Ch/metal–organic frameworks[MOFs])for the rapid and efficient removal of lipopolysaccharide(LPS)in complex blood environments.Furthermore,abun-dant active sites on MOF-919(Sc)also enable a record-high adsorption capacity of 9.56 mg/g in biomass-based adsorbents due to the coordination interactions between endotoxin and MOF-919(Sc).The LPS level of sepsis rabbits was less than 2 EU/mL(clearance rate>95%)after 90-min hemoperfusion,showing no adverse effect on the rabbit organs.Additionally,compared to the commonly used LPS scrubber Toraymyxin(polymethyl methacrylate),the chitin adsorbent is significantly more cost-effective and environmentally friendly.The prepara-tion strategy for hierarchical porous microspheres offers notable advantages in designability,recyclability,and renewability,providing a new approach to sepsis treatment and promising prospects for the biomedical application of sustainable biomass materials.

A novel ameliorated rat model of reversible obstructive jaundice

Obstructive jaundice is a common clinical symptom generally caused by bile duct stones,inflammatory hyperplasia,and tumors.It is characterized by hyperbilirubinemia and may trigger a variety of complications such as hypotension,kidney injury,endotoxemia,multiple organ dysfunction syndrome,and even death(Pavlidis and Pavlidis,2018;Liu et al.,2021).Relieving bile duct obstruction and providing adequate drainage have been considered as the most effective therapies for obstructive jaundice.However,it has not yet been established whether it is beneficial to treat affected patients by pre-operative biliary drainage(Blacker et al.,2021).Moreover,the pathophysiological changes or mechanisms associated with the reversal of organ function following the relief of bile-duct obstruction are unclear(Huang et al.,2004).Therefore,it is necessary to establish an experimental model of reversible obstructive jaundice to simulate biliary drainage in clinical practice.