Breakthrough Infections Following mRNA SARS-CoV-2 Vaccination in Kidney Transplant Recipients.

Background: The clinical effectiveness of coronavirus disease 2019 (COVID-19) vaccination in kidney transplant (KT) recipients is lower than in the general population.

Methods: From April to October 2021, 481 KT recipients with COVID-19, included in the Spanish Society of Nephrology COVID-19 Registry, were analyzed. Data regarding vaccination status and vaccine type were collected, and outcomes of unvaccinated or partially vaccinated patients (n = 130) were compared with fully vaccinated patients (n = 351).

[Prevalence of mild to moderate chronic kidney disease in the general population of Spain. Hortega study].

Background: Although the epidemiology of subjects with end-stage renal disease is well-known in Spain, the prevalence of mild to moderate chronic kidney disease (CKD) in the general population is unknown. In order to measure this, it is necessary to carry out studies in the general population including those who are not health service patients. During epidemiology studies, the method of measuring glomerular filtration rate can change significantly the measurements of the prevalence of mild to moderate CKD.

Ruthenium alkylidenes: modulation of a new class of catalysts for controlled radical polymerization of vinyl monomers.

Air-stable and readily available ruthenium benzylidene complexes of the general type [RuCl2(=CHPh)(L)(L')] (L, L' = PCy3 and/or N-heterocyclic carbene) constitute a new class of catalyst precursors for atom-transfer radical polymerization (ATRP) of methyl methacrylate and styrene, and provide an unprecedented example for the involvement of ruthenium alkylidenes in radical reactions. They promote the polymerization of various monomers with good to excellent yields, and in a controlled way with methyl methacrylate and styrene. Variations of their basic structural motif provide insights into the essential parameters responsible for catalytic activity.

[Treatment of psoas abscess: percutaneous drainage or open surgery].

Objective: Psoas abscess is currently an uncommon disease and is often difficult to diagnose because of its minor initial symptoms. We compare treatment by percutaneous drainage and surgery.

Material And Methods: Five patients, all immunodepressed, which appears to be an important factor in the aetiology and pathogenesis of psoas abscess.

Highly Efficient Ruthenium-Based Catalytic Systems for the Controlled Free-Radical Polymerization of Vinyl Monomers.

A new set of ruthenium complexes such as 1 and 2 (the Grubbs ruthenium-carbene complex) has been shown to mediate the controlled atom-transfer radical polymerization (ATRP) of vinyl monomers with exceptional efficiency. Furthermore, there is a striking parallelism between the catalytic activity of these compounds in olefin metathesis and in ATRP.