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Cytauxzoon spp. are tick-borne haemoprotozoans that infect domestic and wild felids and are of increasing relevance in veterinary medicine and epidemiology of vector-borne pathogens. In Brazil, the genetic diversity of these agents in wild felids has been progressively expanded, culminating in the description of Cytauxzoon brasiliensis . However, the occurrence of this species in domestic cats is unknown. Therefore, the presen...
This study evaluated the physiological, metabolic and oxidative responses of Colossoma macropomum subjected to air exposure when maintained in water at suboptimal temperature (23°C). A total of 54 fish (81.33 ± 11.90 g) were distributed into nine tanks (6 fish per tank). For the air exposure test, 24 animals were exposed for 30 min and another 24 animals for 60 min. Six fish from each group were sampled immediately after expos...
This study evaluated the effects of dietary Elionurus muticus essential oil (EMEO) on growth performance, physiological responses, and resistance to car transport stress in Nile tilapia (Oreochromis niloticus). Fish were fed experimental diets for 60 days and subsequently subjected to 6 h of transport stress. Five diets were tested: 0.00 (control), 0.25, 0.50, 1.00, and 1.50 mL EMEO kg−1, in triplicate (10 fish per 500 L tank;...
Carbonate microfacies and paleoenvironmental evolution of the Romualdo Formation (late Aptian/early Albian), Araripe Basin (NE, Brazil)NARA Subscribed
The Romualdo Formation, located in the Araripe Basin (NE, Brazil), represents an important sedimentary record of the late Aptian/early Albian transition, evidencing the establishment of a mixed siliciclastic–carbonate platform influenced by eustatic oscillations and marine ingressions associated with the breakup of Gondwana. Detailed analysis of thin sections from the Santo Antônio, Cedro, and Sobradinho sections revealed eigh...
The androgenic gland (AG) is a male-specific endocrine organ in crustaceans, playing a crucial role in sexual differentiation. The function of the AG in decapods has been attributed to the expression of the insulin-like androgenic gland hormone ( IAG ) encoding gene which in Macrobrachium rosenbergii was shown to serve as a sexual switch (IAG-switch) for natural sexual differentiation as well as for sex manipulations. Macrobra...
Peripheral microRNA signature in genetic frontotemporal dementia—findings from the GENFI initiativeNARA Subscribed
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...
Purpose Tilapia skin, a filleting by product, can be used to extract collagen (CTS) for bio-based films and hydrogels. This study performs the first ex-ante environmental and economic assessment of CTS, evaluating two pathways for these applications, with the aim of guiding the selection of one of these pathways for future investments in pilot plants or their redesign. Methods Two pathways for extracting 1 kg/year of CTS were...
Adsorption of cadmium by brewery wasteNARA Subscribed
Aim The urgency for remote, reliable and scalable biodiversity monitoring amidst mounting human pressures on ecosystems has sparked worldwide interest in Passive Acoustic Monitoring (PAM), which can track life underwater and on land. However, we lack a unified methodology to report this sampling effort and a comprehensive overview of PAM coverage to gauge its potential as a global research and monitoring tool. To address this...