Bokermannohyla frogs comprise species distributed across different Brazilian biomes, several of which are currently listed as endangered species. These anurans host a diversity of parasites that may negatively affect their survival. Several tick species of the family Argasidae and chigger mites of the family Leeuwenhoekiidae exhibit host specificity toward this group. Here, we report a case of co-parasitism by argasid ticks an...

Studies on the microanatomy of the tadpole oral apparatus are limited, particularly for Amazonian species. Therefore, the present study aimed to describe the ontogenetic development, as well as the buccopharyngeal morphology, of the oral apparatus of Physalaemus ephippifer tadpoles. Egg clutches were transported to the laboratory and maintained in plastic containers filled with water at an average temperature of 24 °C, where e...

Climatic events driven by rising global temperature impact water quality and biota, in some cases leading to cyanobacterial blooms. Cyanobacteria and dinoflagellates can dominate phytoplankton communities, forming mixed or alternating harmful blooms whose shifts are influenced by seasonal temperature fluctuations. Microcystis aeruginosa , a microcystin-producing cyanobacterium, has formed dense blooms worldwide. Under certain...

The increasing demand for sustainable livestock production systems has intensified scientific interest in feed efficiency traits, particularly residual feed intake (RFI), as a strategy to improve productivity while reducing environmental impacts. This study provides a comprehensive bibliometric assessment of global scientific production on RFI and feed efficiency in ruminants. A total of 2632 documents indexed in Scopus and We...

Aims Ethyl ferulate (EF) may offer novel benefits in hypertension. We investigated the contribution of autonomic receptors to EF-induced effects in female Wistar and SHR. Methods Anesthetized females received EF intravenously at 7.5, 15, or 30 mg/kg. Autonomic involvement was evaluated using pretreatment with atropine, atenolol, or hexamethonium. MAP and HR were continuously monitored. Results EF induced rapid and pronounced r...

Frontotemporal dementia (FTD) is a neurodegenerative disease characterized by significant clinical and genetic heterogeneity, with approximately 40% of cases linked to hereditary genetic mutations, including MAPT , GRN , and C9ORF72 . Recently, microRNAs (miRNAs) have emerged as key regulators of cellular processes related to neurodegeneration and as potential biomarkers for FTD. However, their relevance in presymptomatic stag...