A5069890880- Parasite Biology and Host Interactions
- Helminth infection and control
- Parasites and Host Interactions
- Mollusks and Parasites Studies
- Paleopathology and ancient diseases
- Mercury impact and mitigation studies
- Parasitic infections in humans and animals
- Research on Leishmaniasis Studies
- Fish Biology and Ecology Studies
- Marine Ecology and Invasive Species
- Primate Behavior and Ecology
- Fish biology, ecology, and behavior
- Evolution and Paleontology Studies
- Ichthyology and Marine Biology
- Medical and Biological Ozone Research
- Insects and Parasite Interactions
- Insect and Arachnid Ecology and Behavior
- Aquaculture disease management and microbiota
- Trypanosoma species research and implications
- Entomopathogenic Microorganisms in Pest Control
- Adenosine and Purinergic Signaling
- Parasitic Infections and Diagnostics
- Forensic Entomology and Diptera Studies
- Parasitic Diseases Research and Treatment
- Bird parasitology and diseases
Universidade do Estado do Rio de Janeiro
2016-2025
Universidade Federal do Rio de Janeiro
2008-2015
National Institute of Science and Technology for Structural Biology and Bioimaging
2013-2015
Universidade Federal do Estado do Rio de Janeiro
2015
Instituto de Biofísica Carlos Chagas Filho
2007-2010
Fundação Carlos Chagas
2007
Trichuriasis, a well-known type of soil-transmitted helminthiasis, is neglected gastrointestinal nematode disease predominantly affecting children in tropical regions and caused by Trichuris trichiura . The potential zoonotic transmission this indicated its presence nonhuman primates. Chronic infection leads to mucosal damage, bacterial translocation, intense inflammatory infiltration; however, the progression these processes remains poorly understood. This study tracks acute phase...
The rat lungworm Angiostrongylus cantonensis is a worldwide-distributed zoonotic nematode that can cause human eosinophilic meningoencephalitis. Here, for the first time, we report isolation of A. from Achatina fulica two Brazilian states: Rio de Janeiro (specifically municipalities Barra do Piraí, situated at Paraiba River Valley region and São Gonçalo, edge Guanabara Bay) Santa Catarina (in municipality Joinville). lungworms were identified by comparing morphological morphometrical data...
Treatment and control of schistosomiasis relies on the only available drug, praziquantel, search for alternative chemotherapeutic agents is therefore urgent. Egg production required transmission immunopathology females S. mansoni lay 300 eggs daily. A large fraction total mRNA in mature female worm encodes one eggshell protein, Smp14. We report that nuclear receptors SmRXR1 SmNR1 regulate Smp14 transcription through recruitment two histone acetyltransferases (HATs), SmGCN5 SmCBP1. The...
Taking into account the difficulties of taxonomic identification larval anisakid nematodes based on morphological characters, genetic analyses were performed, together with those usually applied, in order to identify larvae found flounder Paralichthys isosceles from littoral state Rio de Janeiro, Brazil. The analysis 1,820 revealed a new species, similar Hysterothylacium MD, 2, KB and sp regarding absence tooth, an excretory pore situated below nerve ring level, slender lateral alae....
Infections with Trichuris trichiura are among the most common causes of intestinal parasitism in children worldwide, and diagnosis is based on microscopic egg identification chronic phase infection. During parasitism, adult worm trichurid nematode maintains its anterior region inserted mucosa, which serious damage may open access for gut microorganisms through tissue.
The whipworm of the genus Trichuris Roederer, 1791, is a nematode worldwide distribution and comprises species that parasitize humans other mammals. Infections caused by spp. in mammals can lead to various intestinal diseases human veterinary interest. morphology helminths has been mostly studied using conventional scanning electron microscopy chemically fixed, dried metal-coated specimens, although this kind preparation shown introduce variety artifacts such as sample shrinking, loss...
The aim of this study was to analyse the infection dynamics ofAngiostrongylus cantonensis in its possible intermediate hosts over two years an urban area state Rio de Janeiro where presence ofA. had been previously recorded molluscs. Four seven mollusc species found were exotic.Bradybaena similaris most abundant, followed byAchatina fulica, Streptaxis sp., Subulina octona, Bulimulus tenuissimus, Sarasinula linguaeformis and Leptinaria unilamellata. Only A. fulica B. parasitised by both...
Anisakid nematodes have been identified in a wide variety of fish and marine mammal species. In Brazil, Anisakis physeteris, A. insignis, typica, nascetti, those the simplex complex reported infecting fishes cetaceans. this study, specimens collected from dwarf sperm whale Kogia sima (Owen, 1866) stranded on northeastern coast Brazil were through morphological genetic analyses as paggiae. Anisakids examined differential interference contrast light scanning electron microscopy (SEM)....
Treatment and control of schistosomiasis still rely on only one effective drug, praziquantel (PZQ) and, due to mass treatment, the increasing risk selecting for schistosome strains that are resistant PZQ has alerted investigators urgent need develop novel therapeutic strategies. The histone-modifying enzymes (HMEs) represent promising targets development epigenetic drugs against Schistosoma mansoni. In present study, we targeted S. mansoni lysine-specific demethylase 1 (SmLSD1), a...
Gastrointestinal nematodes were recovered from thirty four Gracilinanus agilis forty collected in Pantanal, Mato Grosso do Sul State, Brazil. Two hundred seventy spirurids the esophagus, stomach and intestines, comprising three species different genera. These identified as Pterygodermatites (Paucipectines) jägerskiöldi, Spirura guianensis Physaloptera herthameyerae n. sp. is first described. This record of genera hosts genus Gracilinanus. The high prevalence 72.3% G. probably influenced by...
Trichuris thrichomysi n. sp., recovered from the cecum of wild rodent Thrichomys apereoides a transition zone between Atlantic Forest and Cerrado morfoclimatic domains, its life cycle observed under experimental conditions are described. This new species is closely related to travassosi, chiliensis fulvi, but can be distinguished them mainly by differences in posterior end males. Details surface such as bacillary gland, cuticular inflations several morphological details obtained scanning...
Pterygodermatites (Paucipectines) jägerskiöldi Lent and Freitas, 1935, a parasitic nematode of the small intestine marsupial Gracilinanus agilis (Mammalia: Didelphidae) from Pantanal Mato Grosso do Sul state, G. microtarsus Atlantic Forest Rio de Janeiro Brazil, were analyzed by light scanning electron microscopy. Details surface topography such as oral aperture, cephalic papillae, 2 papillae in posterior end, longitudinal cuticular elements represented combs spines are presented along with...
Flounders are commercially and economically important fish. A total of 120 specimens flounders (60 Paralichthys isosceles, 30 patagonicus Xystreurys rasile) were collected off the coast state Rio de Janeiro, Brazil. The fish measured, necropsied filleted, then had their organs investigated for acanthocephalans. Taxonomic identification parasites was based on morphological, morphometric genetic characters. isosceles P. parasitized by juveniles Serrasentis sagittifer, Bolbosoma turbinella,...
Between February and August, 2012, thirty specimens of Atlantic moonfish, Selene setapinnis, were purchased in local markets Niterói, State Rio de Janeiro, Brazil, with the aim analyzing presence anisakid nematodes, establishing their rates parasitism infection sites, due to importance sanitary inspection. A total sixty nematode larvae, belonging at least two species found: nine larvae Terranova sp., Anisakidae, prevalence (P) 13.3%, mean intensity (MI) 2.25, abundance (MA) 0.30 range (RI)...
Currently, there are 21 species of Angiostrongylus that parasitize the pulmonary or mesenteric arteries wild and domestic rodents, felids, canids human. Species have cosmopolitan distribution covering tropical, subtropical temperate regions. The procyonid Nasua nasua (coati) is a reservoir host for wide variety parasites may be harmful to its populations contain etiological agents with zoonotic potential. In urban areas, coatis usually found in close association humans animals. We...