A5020852272- Bird parasitology and diseases
- Mycobacterium research and diagnosis
- Turtle Biology and Conservation
- Parasite Biology and Host Interactions
- Infectious Diseases and Mycology
- Tuberculosis Research and Epidemiology
- Veterinary Oncology Research
- Reproductive Physiology in Livestock
- Virus-based gene therapy research
- Animal Nutrition and Physiology
- Mycotoxins in Agriculture and Food
- Venomous Animal Envenomation and Studies
- Meat and Animal Product Quality
- Helminth infection and control
- Microbial infections and disease research
- Vector-Borne Animal Diseases
- Tumors and Oncological Cases
- Rabies epidemiology and control
- Helicobacter pylori-related gastroenterology studies
- Comparative Animal Anatomy Studies
- Parasitic infections in humans and animals
- Oral and Maxillofacial Pathology
- Vector-borne infectious diseases
- Insect and Pesticide Research
- T-cell and Retrovirus Studies
Prefeitura Municipal de Campos dos Goytacazes
2007-2025
State University of Norte Fluminense
2015-2024
Unichristus
2022
Universidade do Estado do Rio de Janeiro
2018
Universidade Federal Fluminense
1994-2015
Fundação de Estudo e Pesquisa em Medicina Veterinária e Zootecnia
2015
AVM Faculdade Integrada
2005
Associação Brasileira de Oncologia Veterinária
1998-2003
Altera (United States)
2003
Fundação Oswaldo Cruz
2003
ABSTRACT Strains of the Beijing genotype family Mycobacterium tuberculosis are a cause particular concern because their increasing dissemination in world and association with drug resistance. Phylogenetically, this includes distinct ancient modern sublineages. The strains, contrary to ancestral counterparts, demonstrated prevalence many regions that suggest an enhanced bacterial pathogenicity. We therefore evaluated virulence versus strains similar epidemiological characteristics. For this,...
Sodium bentonite (SB) was evaluated for its ability to reduce the deleterious effects of fumonisin B1 (FB1) and aflatoxin (AFB1) in broiler diets. It incorporated into diets (0.3%) containing 2.5 mg/kg AFB1, 200 FB1, or a combination AFB1 FB1. Aflatoxin significantly diminished body weight gain, whereas FB1 SB had no effect. Addition inhibitory dietary AFB1. Feeding alone caused significant increases relative weights most observed organs. did not alter any In combined diet (AFB1 plus FB1)...
Tuberculosis (TB) is a chronic infectious disease caused by Mycobacterium tuberculosis (Mtb) that in most cases induces irreversible necrosis of lung tissue as result excessive inflammatory reactions. The murine model TB resistant C57BL/6 mice infected with reference Mtb strains widely used studies; however, these do not show necrotic pathology, which restricts their use studies damage. Recently, we demonstrated lesions could be induced the highly virulent belonging to modern Beijing...
Abstract Malaria is a serious infectious disease caused by parasites of the Plasmodium genus that affect different vertebrate hosts. Severe malaria leads to host death and involves pathophysiological phenomena such as anemia, thrombocytopenia inflammation. Nitric oxide (NO) an important effector molecule in this disease, but little known about its role avian models. gallinaceum- infected chickens were treated with aminoguanidine (AG), inhibitor inducible nitric synthase, observe NO...
Toxoplasma gondii causes toxoplasmosis, a worldwide disease. Experimentation with pigs is necessary for the development of new therapeutic approaches to human diseases. BR-1 mini were intramuscularly infected T. tachyzoites (RH strain) or orally cysts (ME-49 strain). Haematology and serum biochemistry analysed buffy coat cells inoculated in mice determine tachyzoite circulation. No alterations observed erythrocyte platelet values; however, band neutrophils increased seven days after...
Haemoproteids (Haemosporida, Haemoproteidae) are a diverse group of avian blood parasites that transmitted by hematophagous dipterans. In this study, we describe
Neutralizing monoclonal antibodies against three major toxic components of Bothrops atrox venom were produced and tested. The mAbs phospholipase A2, hemorrhagic metalloprotease, thrombin-like enzymes in large amounts purified with caprylic acid followed by ammonium sulfate precipitation. Purified analyzed SDS-PAGE their ability to neutralize the respective toxins was Five Swiss mice injected i.p. 13.5 mg pooled challenged via s.c. route venom. Survival rate recorded for next 48 h. All...
Toxoplasmosis is a worldwide disease with most of the infections originating through oral route and generates various pathological manifestations, ranging from meningoencephalitis to retinochoroiditis inflammatory bowel disease. Animal models for these pathologies are scarce have limitations. We evaluated outcome Toxoplasma gondii infection 50 or 100 cysts ME-49 strain in two lines mice extreme phenotypes susceptibility (TS) resistance (TR) immune tolerance. Therefore, aim this study was...
Chinchillas ( Chinchilla lanigera) are known to be very sensitive aflatoxins, and often a large number of animals die if toxicosis occurs. An outbreak acute aflatoxicosis on chinchilla farm in Argentina is described the present study. A commercial feed suspected causing death 200 was sampled. Livers from 9 dead chinchillas were analyzed for their macroscopic microscopic characteristics via necropsy histopathology. Aflatoxins B 1 , 2 G determined, by thin layer chromatography, feed....
Considerando a necessidade do conhecimento da cisticercose bovina e aperfeiçoamento dos métodos de diagnóstico desta doença, objetivou-se verificar ocorrência Cysticercus bovis nos diversos locais anatômicos, tais como: cabeça, coração, esôfago, diafragma, língua, fígado carcaça, examinados pelo Serviço Inspeção Federal. O foi feito por macroscopia, microscopia PCR com extração DNA fervura para identificação metacestóide. Dos 22043 bovinos abatidos, 713 (3,23%) estavam infectados. coração o...
Summary This note reports the occurrence of Hapalotrema postorchis Rao 1976 collected from an aortic aneurysm in a green turtle (Chelonia mydas Linnaeus 1758) found on coast Brazil. Besides vascular lesion, granulomatous reactions with foreign - body giant cells were surrounding parasite eggs heart, intestines, liver, pancreas, spleen, brain and kidneys. paper presents first report H. accompanying lesions sea western South Atlantic Ocean.
Background Opportunistic Mycobacterium avium typically causes disease in immunocompromised patients and some groups of apparently healthy individuals. The high virulence bacterial lineages increases the risk. High-resolution molecular genotyping studies M. clinical isolates demonstrated that genotype patterns were more prevalent than others, suggesting close genetic relatedness these successful sharing a similar could determine biological properties associated with virulence. Methods...
This paper presents the first report of parasites from genus Renicola sp. in kidneys Magellanic penguins. The histological analysis revealed inflammatory infiltrate (eonsinophils, lymphocytes, and plasmocytes), together with fibroplasia compression adjacent ducts.