First record of the interaction between the arthropod-pathogenic fungus Gibellula and a new species of harvestman Auranus (Stygnidae) narrowly endemic to the Brazilian rain forest.

Harvestmen are one of the largest groups of arachnids with more than 6,500 species distributed in 1,500 genera and 50 families. However, the interactions between harvestmen and arthropod-pathogenic fungi have rarely been studied. Certain previous studies report that fungal attack represents one of the most important factors for the mortality of harvestmen, but the fungus has rarely been identified, and most of the important information about the fungus-host interactions remains unrecorded. In the present study, we have described the new species Auranus quilombola sp. nov. and reported its interactions with the arthropod-pathogenic fungus Gibellula sp. Auranus quilombola sp. nov. belongs to the family Stygnidae, and it is endemic to the humid mountain forests of Cear state, Brazil in an area of endemism known as Brejos Cearenses. The species is related to five other species of Auranus, all of which have been recorded from the Amazon rainforest. A taxonomic description of this new species and its biogeographic implications have also been discussed in this paper.

Prevalência e fatores associados ao diagnóstico de morte encefálica / Prevalencia y factores asociados con el diagnóstico de muerte cerebral / Prevalence and factors associated with the diagnosis of brain death

Objetivo: avaliar a prevalência de morte encefálica e os fatores associados. Método: estudo transversal com dados dos registros de pacientes neurocríticos e potenciais doadores de órgãos entre 2018 e 2019, sendo analisados por meio de estatística descritiva e regressão logística multinomial multivariada. Resultados: a prevalência de morte encefálica nos pacientes acompanhados foi de 46,6%, predominando homens, adultos, com Traumatismo Cranioencefálico (44,3%) como causa da morte. Os fatores associados à morte encefálica foram: score da Escala de Coma de Glasgow (RRR=0,30; p=0,001), uso de droga vasoativa (RRR=7,55; p=0,000) e Acidente Vascular Cerebral Hemorrágico e Isquêmico (RRR=2,14; p=0,031). Conclusão: houve uma alta prevalência de morte encefálica. O uso de droga vasoativa, o score da Escala de Coma de Glasgow e os diagnósticos de Acidente Vascular Cerebral Hemorrágico e Isquêmico mostraram-se associados à evolução para o quadro.

Objective: to evaluate the prevalence of brain death and its associated factors. Method: cross-sectional study with data from the records of neurocritical patients and potential organ donors between 2018 and 2019, being analyzed by descriptive statistics and multivariate multinomial logistic regression. Results: the prevalence of brain death in followed-up patients was 46.6%, predominantly men, adults, with traumatic brain injury (44.3%) as cause of death. Factors associated with brain death were: Glasgow Coma Scale score (RRR=0.30; p=0.001), vasoactive drug use (RRR=7.55; p=0.000) and Hemorrhagic and Ischemic stroke (RRR=2.14; p=0.031). Conclusion: there was a high prevalence of brain death. The use of vasoactive drugs, the Glasgow Coma Scale score and the diagnoses of Hemorrhagic and Ischemic stroke were associated with the evolution to the condition.

Objetivo: evaluar la prevalencia de la muerte cerebral y sus factores asociados. Método: estudio transversal con datos de los registros de pacientes neurocríticos y potenciales donantes de órganos entre 2018 y 2019, siendo analizado por estadísticas descriptivas y regresión logística multivariada multinomial. Resultados: la prevalencia de la muerte cerebral en pacientes de seguimiento fue del 46,6%, predominantemente hombres, adultos, con lesión cerebral traumática (44,3%) como causa de muerte. Los factores asociados con la muerte cerebral fueron: la puntuación de la Escala de Coma de Glasgow (RRR-0,30; p-0,01), el consumo de drogas vasoactiva (RRR-7,55; p-0,000) y el accidente cerebrovascular hemorrágico e isquémico (RRR-2,14; p-0,031). Conclusión: hubo una alta prevalencia de muerte cerebral. El uso de drogas vasoactivas, la puntuación de la Escala de Coma de Glasgow y los diagnósticos de accidente cerebrovascular hemorrágico e isquémico se asociaron con la evolución a la afección.