The diversity of plant-pollinator interactions is grounded in floral resources, with nectar considered one of the main floral rewards plants produce for pollinators. However, a global evaluation of the number of animal-pollinated nectar-producing angiosperms and their distribution world-wide remains elusive. We compiled a thorough database encompassing 7621 plant species from 322 families to estimate the number and proportion of nectar-producing angiosperms reliant on animal pollination.
View Article and Find Full Text PDFThis paper provides an assessment of COVID-19 occurrences in the Brazilian Amazon, with special emphasis on municipalities where mining activity is prevalent. It does so with a view to exploring how mining may be influencing the spread of coronavirus, not only within municipalities where the sector is widespread but also other areas of the Amazon. The analysis draws on findings from qualitative research and case studies of selected mining municipalities in Brazil.
View Article and Find Full Text PDFChronic ethanol consumption is a leading cause of mortality worldwide, with higher risks to develop pulmonary infections, including infections. Mechanisms underlying increased susceptibility to infections are poorly understood. Chronic ethanol consumption induced increased mortality rates, higher burden and reduced neutrophil recruitment into the airways.
View Article and Find Full Text PDFRev Soc Bras Med Trop
March 2020
Introduction: Pulmonary arterial hypertension (PAH) is a serious pulmonary circulation disease caused by several etiologies, including schistosomiasis. The present study retrospectively evaluated the clinical and hemodynamic characteristics of patients with schistosomal PAH (PAH-Sch) compared to those of non-Sch PAH patients (non-Sch PAH).
Methods: Patients treated at the Pronto-Socorro Cardiológico de Pernambuco and diagnosed by right cardiac catheterization were divided into PAH-Sch and non-Sch PAH groups.