The increase in fungal infections, the limited therapeutic arsenal, and the emergence of resistance pose a global health problem. Candida spp. stand out as opportunistic pathogens that cause superficial and invasive diseases. Thus, the search for new therapeutic alternatives, such as drug repositioning, is necessary. Duloxetine (DUL), a serotonin-norepinephrine reuptake inhibitor antidepressant used to treat depression, has de...

The Tricycle Protocol is a One Health initiative that involves monitoring extended-spectrum β-lactamase-producing Escherichia coli (ESBL-Ec), an opportunistic intestinal and extraintestinal pathogen that is recognized as critically important for the development of new antimicrobial agents and as a key indicator of water, food, and environmental contamination. This study aimed to detect and characterize, phenotypically and geno...

Wild animals often play a role in the transmission of zoonotic pathogens. Among the wild mammals of South America, ring-tailed coatis ( Nasua nasua ) can present a high frequency of anti- Leptospira antibodies and carry Leptospira spp. This study aimed to evaluate the frequency of serum anti- Leptospira antibodies and perform the molecular identification of Leptospira spp. in ring-tailed coatis living in the Tietê River Ecolog...

Environmental changes caused by anthropogenic activities are accompanied by a multitude of chemical compounds and stressors, which exert significant pressure on native anuran communities. Many of these substances are endocrine disruptors, which interfere with the organism’s physiology, particularly the immune and reproductive systems. We used 49 male Leptodactylus fuscus collected in agricultural areas (soybean and sugarcane)...

Alphaviruses, including Mayaro virus (MAYV) and Chikungunya virus (CHIKV), pose a growing public health threat, with increasing reports worldwide and no licensed antiviral treatments available. This study evaluated the antiviral activity of pyridine-3-carbohydrazide (P-3-C) against MAYV (strains BeAr and TRVL) and CHIKV (strain La Reunion, LR). Vero E6 or U-2OS cells were infected and treated with P-3-C for 24 h, and cell viab...

A new sand fly species, Evandromyia ( Aldamyia ) diprimioi sp. nov. Rodrigues, Souza, Santos & Andrade Filho, was found in entomological collections carried out in the state of Rio Grande do Sul, South Brazil, and is herein described concerning its morphological traits. This new taxon is closely related to the Evandroi complex but can be distinguished from others of the subgenus E. ( Aldamyia ) by morphological traits of male...

Understanding the non-timber use potential of riparian forests is essential for advancing the sociobioeconomy in anthropized regions of the Amazon. This study assessed the use potential of species recorded in riparian forests and identified the factors associated with their distribution in an industrial hub in the Brazilian Amazon. Species with the highest importance value index along the region’s main rivers and with some con...

Melatonin has been extensively studied for its antioxidant activity, yet its safety profile and concentration-dependent effects remain only partially understood, particularly in aquatic experimental systems. Here, we investigated the effects of melatonin on behavioral and physiological responses in a pilocarpine (PILO)-induced seizure-like model using zebrafish ( Danio rerio ) larvae. A multibiomarker framework was employed, c...

Respiratory diseases remain a major public health challenge in tropical coastal cities, where persistent heat-humidity interactions and climate variability shape population vulnerability. This study quantified associations between atmospheric conditions and respiratory hospitalizations in Maceió, Brazil, using a 20-years time series (2000–2019). Weekly hospitalization rates stratified by age (children 0–4 years, adults 5–59 ye...

The genus Amblyomma koch, 1844 contains approximately 138 species, which are mainly distributed in the Afrotropical, Oriental, Neotropical and Australasian zoogeographic regions. This is an important group of arthropod vectors responsible for transmitting a wide range of etiological agents that cause infections and diseases in humans and animals, and is therefore of great interest to public and veterinary health.This study des...

Aim We evaluated how native vegetation cover influences the diversity of arachnid assemblages across multiple spatial scales in major Brazilian ecosystems. Location Brazil (Amazon and Atlantic rainforests, Cerrado savanna and Caatinga dry forest). Taxon Arachnida (Opiliones, Pseudoscorpiones and Scorpiones). Methods We sampled arachnids at 120 sites using active search and litter sifting. Native vegetation cover was quantified...

Understanding individual growth is essential for assessing exploitation status and supporting sustainable fishery management. For the southern Brazilian stock of the mullet Mugil liza, previous growth estimates were based on whole otolith readings and included few young individuals, potentially influencing growth parameter estimation and stock assessment outputs. In this study, daily otolith microincrements of juveniles were v...