Clinical and Serological Features in Latin American IgG4-Related Disease Patients Differ According to Sex, Ethnicity, and Clinical Phenotype.

Background/objective: Data on IgG4-related disease (IgG4-RD) come almost exclusively from cohorts from Asia, Europe, and North America. We conducted this study to describe the clinical presentation, phenotype distribution, and association with sex, ethnicity, and serological markers in a large cohort of Latin American patients with IgG4-RD.

Methods: We performed a multicenter medical records review study including 184 Latin American IgG4-RD patients.

Phase-Change Materials in Hydronic Heating and Cooling Systems: A Literature Review.

When considering the deployment of renewable energy sources in systems, the challenge of their utilization comes from their time instability when a mismatch between production and demand occurs. With the integration of thermal storages into systems that utilize renewable energy sources, such mismatch can be evened out. The use of phase-change materials (PCMs) as thermal storage has a theoretical advantage over the sensible one because of their high latent heat that is released or accumulated during the phase-change process.

Female-biased sex difference in vasotocin-immunoreactive neural structures in the developing quail brain.

The bed nucleus of the stria terminalis pars medialis (BSTM), medial preoptic nucleus (POM), and lateral septal region (LS) exhibit more vasotocin-immunoreactive (VT-ir) neural structures in male than in female adult quail. VT-ir cells and fibers in these regions are sensitive to gonadal steroids only in males. The insensitivity of adult female VT-ir neural structures to sex steroids is attributed to estradiol exposure during a critical period in embryonic life.

Multiple cutaneous abscesses revealing disseminated nocardiosis in a patient with chronic rheumatoid arthritis.

Nocardiosis is a challenging infection that is difficult to diagnose and treat. Delayed recognition and prolonged illness are major concerns. We report the case of a 65-year-old man who underwent treatment with corticosteroids for rheumatoid arthritis and then presented with multiple abscesses on the right leg.