A first survey of mite species that ectoparasitize bats in the states of Ceará and Mato Grosso was conducted. The specimens of bats and their mites were collected in areas of the Caatinga and Pantanal biomes. A total of 450 spinturnicids representing two genera and ten species was collected from 15 bat species in the Private Reserve of the Natural Patrimony Serra das Almas, Ceará State, Northeast Brazil and 138 spinturnicids represented by two genera and four species were found in seven bats species collected in Private Reserve of the Natural Patrimony Sesc Pantanal, Mato Grosso State, Central-Western Brazil. The occurrence of Cameronieta genus and the species Mesoperiglischrus natali as well as four new associations (Periglischrus iheringi - Chiroderma vizottoi; P. micronycteridis - Micronycteris sanborni; P. paracutisternus - Trachops cirrhosus; Spinturnix americanus - Myotis riparius) are registered for the first time in Brazil.
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http://dx.doi.org/10.1590/S1984-29612016005 | DOI Listing |
Toxicon
January 2025
Faculty of Biological and Environmental Sciences, Federal University of Grande Dourados (UFGD), Dourados-Itahum Highway, Km 12 - Unit II, University City, 79804-970, Dourados, MS, Brazil; Faculty of Exact Sciences and Technology, Federal University of Grande Dourados (UFGD), Dourados-Itahum Highway, Km 12 - Unit II, University City, 79804-970, Dourados, MS, Brazil.
The venom of Ectatomma brunneum is considered promising for drugs development. Therefore, it is important to evaluate its toxic potential and genetic instability using biological assays. To this end, toxicity assays were performed with Artemia salina, cytotoxicity and genotoxicity with Allium cepa and mutagenicity with Ames.
View Article and Find Full Text PDFJ Environ Manage
January 2025
School of Environmental Sciences, University of East Anglia, Norwich Research Park, Norwich, Norfolk, NR4 7TJ, UK; Instituto Juruá, Manaus, Brazil.
Over recent decades, forest fire prevalence has increased throughout the tropics, necessitating improved understanding of the landscape-scale drivers of fire occurrence. Here, we use MapBiomas land-cover and fire scar data to evaluate relationships between forest fragmentation, land-use, and forest fire prevalence in a typically consolidated Amazonian agricultural frontier: Portal da Amazonia, Mato Grosso, Brazil. Using zero-/zero-one-inflated Beta regressions, we investigate effects of forest patch (area, shape, surrounding forest cover) and landscape-scale variables (forest edge length, land-cover composition) on forest fire occurrence and density between 1985 and 2021.
View Article and Find Full Text PDFPharmaceuticals (Basel)
January 2025
Laboratory of Synthesis and Drug Delivery, Department of Biological Sciences, State University of Paraíba, João Pessoa 58071-160, Brazil.
: Leishmaniasis is one of the 20 Neglected Tropical Diseases according to the WHO, affecting approximately 12 million people in four continents, generating serious public health problems. The lack of therapeutic options, associated with toxicity and the emergence of resistance to the few available drugs, makes it urgent to develop new drug options. In this context, the aims of this work are to expand the knowledge about the pharmacophore group responsible for the antileishmanial potential of 2-aminothiophene derivatives.
View Article and Find Full Text PDFPathogens
January 2025
Laboratório de Virologia e Rickettsioses, Faculdade de Medicina Veterinária, Universidade Federal de Mato Grosso, Fernando Correa da Costa, 2367, Cuiabá 78060-900, Brazil.
Coronaviruses (CoV) infect a wide variety of hosts, causing epidemics in humans, birds, and mammals over the years. Bats (order Chiroptera) are one of the natural hosts of the Coronaviridae family. They represent 40% of the total number of mammal species in the Pantanal, a biodiversity hotspot in South America.
View Article and Find Full Text PDFVet Parasitol Reg Stud Reports
January 2025
Laboratory of Animal Parasitology, Institute of Biosciences, Federal University of Mato Grosso do Sul, Campo Grande, MS 79070-900, Brazil.
The genus Gigantorhynchus comprises six valid species that require a terrestrial arthropod as an intermediate host. Cystacanths of G. echinosdiscus were previously reported infecting termites in Brazil.
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