High infection prevalences by Trypanosoma minasense in non-human primates from the Southeast region of Brazil.

Non-human primates (NHPs) are reported as exclusive hosts of Trypanosoma minasense, whose transmission cycle remains unknown. We investigated trypanosomatid infections in 194 NHPs of nine species from the Brazilian Southeast region. We evaluated the impact of landscape composition and forest fragmentation on T.

Dopamine facilitates the response to glutamatergic inputs in astrocyte cell models.

Astrocytes respond to neurotransmitters by increasing their intracellular Ca2+ concentration (Ca2+ signals). While glutamate released by neurons trigger Ca2+ signals through IP3- and glutamate transporter-dependent mechanisms, dopamine released in distant sites activates astrocytes via dopaminergic receptors. However, little is known about the modulatory effects of dopamine on glutamate-evoked astrocytic activity.

Factors associated with myopia in the Portuguese child population: An epidemiological study.

Purpose: Myopia, a leading cause of correctable visual impairment, is projected to affect nearly 50% of the global population by 2050, posing a significant public health challenge. Understanding its prevalence and associated factors, particularly in children, is crucial for devising prevention and intervention strategies. This study aims to determine the proportion of myopia in school-aged children in Portugal and to examine the correlation between myopia occurrence and various environmental and genetic factors.