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1.
Acta Parasitol ; 67(2): 648-657, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-34988857

RESUMO

PURPOSE: Leishmaniasis are infectious and zoonotic diseases and present in cutaneous and visceral forms. Cutaneous leishmaniasis is endemic and widely distributed throughout the state of Espírito Santo, Brazil. Several cases of cutaneous leishmaniasis in humans and dogs associated with Leishmania (Viannia) braziliensis have been reported in the state. This study aimed to investigate the occurrence of natural infection by Leishmania(Viannia) braziliensis in wild mammals found dead (by trampling or natural death) in the Sooretama Biological Reserve, Espírito Santo State. METHODS: From January 2018 to December 2019, 60 animals were collected. Of these, 47 animals from 12 different species were analyzed. The results were demonstrated using descriptive analysis of the observations to calculate the absolute and relative frequencies of the data. RESULTS: In the PCR, using specific primers for the genus Leishmania (D1, D2, and D3) and the species Leishmania (Viannia) braziliensis (ISVB/ISVC), 4 positive animals (8.5%) were detected: 1 Cuniculus paca (paca) (25%) and 3 Callithrix geoffroyi (white-faced marmoset) (25%). In the histopathological analysis, the parasitic amastigote form was not observed. CONCLUSIONS: The natural infection, detected by PCR, by Leishmania (Viannia) braziliensis in Cuniculus paca (paca) and Callithrix geoffroyi (white-faced marmoset) constitutes the first report of infection of this rodent and primate species in the literature. Despite the confirmation of Leishmania (Viannia) braziliensis infection in rodents and primates, the role of these species in the transmission of this zoonosis still needs further observational studies to identify their seasonal variation, transmissibility, infection stability, and the effects of a given parasite on the population and/or individual.


Assuntos
Leishmania braziliensis , Leishmania , Leishmaniose Cutânea , Animais , Brasil/epidemiologia , Leishmaniose Cutânea/epidemiologia , Leishmaniose Cutânea/parasitologia , Leishmaniose Cutânea/veterinária , Mamíferos/parasitologia , Roedores , Zoonoses/epidemiologia
2.
Parasitol Res ; 120(11): 3857-3863, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-34499197

RESUMO

Studying the occurrence of Leishmania in bats would help toward clarifying the role of these animals in epidemiological cycles. Therefore, the objective of this study was to detect Leishmania spp. in bats from the Brazilian State of Espírito Santo. In total, 105 bats from 11 species which had been collected from 17 municipalities of Espírito Santo were obtained from the IDAF Rabies Diagnostic Laboratory between December 2018 and June 2019. DNA was extracted from the bone marrow, skin, and spleen samples and analysed using conventional PCR, with primers specific for the kinetoplastic DNA minicircle of the parasitic species Leishmania (Viannnia) braziliensis, Leishmania (Leishmania) infantum, and Leishmania (Leishmania) amazonensis. To identify the Leishmania species, the positive PCR products were analysed using PCR-RFLP with the HaeIII enzyme and 8% polyacrylamide gel electrophoresis. Positivity for L. (V.) braziliensis was observed in five (4.76%) bats: namely, one male Eumops glaucinus from Vitória (in a skin sample), one male Artibeus lituratus from Vila Velha and one female Eumops glaucinus from Vitória (both in bone marrow samples), and one male A. lituratus from Vitória and one male Molossus rufus from Guarapari (both in the spleen samples). To our best knowledge, this is the first report of the detection of Leishmania in bats from Espírito Santo as well as of Leishmania DNA in the bone marrow of bats.


Assuntos
Quirópteros , Leishmania braziliensis , Leishmania infantum , Animais , Brasil/epidemiologia , DNA de Cinetoplasto , Feminino , Leishmania braziliensis/genética , Leishmania infantum/genética , Masculino
3.
Anat Histol Embryol ; 50(2): 350-359, 2021 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-33249637

RESUMO

The broad-snouted caiman, Caiman latirostris (Daudin, 1802), is one of the six crocodilian species from Brazil. The topography, morphology and morphometry of the broad-snouted caiman heart were studied. Data were obtained from the necropsy of four adult animals, three females and one male. The hearts were removed from the coelomic cavity and fixed in 10% formalin for 48 hr for morphological and morphometric description. The heart is in the cranial mediastinum. It is caudally involved by the liver cranial margins, and ventrally by the ribs, intercostal muscles, and sternum and dorsally by the lungs. The four-chambered morphology is typical with two (right and left) atria and ventricles. Right and left aortic, pulmonary and subclavian arteries branch from the truncus arteriosus. Gubernaculum cordis is present as ligamentous folds uniting the heart apex to the pericardium. Main morphometric means are the apex-to-base length (49.86 mm), circumference (105.25 mm) and heart weight (45.03 g). The right atrium is craniocaudally longer with thicker walls, whereas the left ventricle is narrower. The topography, morphology and morphometry of the heart of C. latirostris are consistent with the anatomy of other crocodilian species.


Assuntos
Jacarés e Crocodilos , Animais , Brasil , Feminino , Masculino
4.
Food Res Int ; 123: 481-502, 2019 09.
Artigo em Inglês | MEDLINE | ID: mdl-31284998

RESUMO

The aim of this work was to undertake a detailed analysis on chemical constituents of brown propolis, originating from four different states (Bahia, Minas Gerais, Paraná and Sergipe) of Brazil. The volatile profile was determined by using HS-SPME-GC-MS along with the determination of total phenolic compounds content, flavonoids and antioxidant activity. A total of 315 volatile compounds were identified, however, several of them have not been reported so far in the Brazilian brown propolis. The terpenes represented the major class with 40.92-84.66% of the total area in the chromatograms. PCA analysis of the majority of compounds successfully indicated the volatile profile of each propolis sample according to their geographical origin. The analysis of volatile compounds and its characterization also varied significantly and confirmed that these depended on the geographical area of collection of propolis. The data generated in this work may help in establishing criteria for quality control and tracking the specific region of propolis production in different states of Brazil.


Assuntos
Própole/química , Controle de Qualidade , Antioxidantes/análise , Brasil , Flavonoides/análise , Cromatografia Gasosa-Espectrometria de Massas , Fenóis/análise , Análise de Componente Principal , Espectroscopia de Infravermelho com Transformada de Fourier , Terpenos/análise , Compostos Orgânicos Voláteis/análise
5.
Food Res Int ; 105: 110-120, 2018 03.
Artigo em Inglês | MEDLINE | ID: mdl-29433198

RESUMO

Monofloral honeys produced by stingless bees M. subnitida Ducke and M. scutellaris Latrelle in typical flowering of the Brazilian semi-arid Ziziphus juazeiro Mart (juazeiro), Croton heliotropiifolius Kunth (velame branco) and Mimosa arenosa willd Poir (jurema branca) were characterized in relation to volatile and sensorial profile. It identified 11 sensory descriptors and 96 volatile compounds. It was noticed a strong effect of flowering in sensorial profile and volatile of honeys. Juazeiro honey stood out with a higher characteristic aroma, taste sweet, caramel flavor and levels of aromatic aldehydes; jurema honey has been described with herb and beeswax aroma and the presence of sulfur compounds and ketones; volatile acids associated with acid taste, medicinal taste and clove aroma characterized the velame branco honey. These results demonstrate that the knowledge of the sensory and aroma profile of these honeys can contribute to characterization of its floral and geographical identity.


Assuntos
Mel/análise , Sensação , Compostos Orgânicos Voláteis/análise , Aldeídos/análise , Animais , Abelhas , Brasil , Croton , Cetonas/análise , Odorantes/análise , Compostos de Enxofre/análise , Paladar , Ceras/análise
6.
Food Res Int ; 102: 553-558, 2017 12.
Artigo em Inglês | MEDLINE | ID: mdl-29195985

RESUMO

The aim of this study was to investigate the effects of regional diversity aspects related to consumers' perceptions of coalho cheese, with Brazilian Northeast and Southeast consumers (n=400, divided equally in each area) using Word Association (WA) task. Different perceptions were detected for both Northeast and Southeast consumers, and among 17 categories elicited for describing coalho cheese, only 7 categories (positive feeling, social aspects, sensory characteristic, dairy product technology, negative feeling, and lack of quality standard) presented significant differences in the frequency of mention according to chi-square per cell approach. The application of the discriminant technique Partial Least Square Discriminant Analysis (PLS-DA) indicated that the categories "Social", "Accompaniment", "Manufacturing method" were the main responsible for differentiating consumers' perceptions of both areas. Overall, the main dimensions involved in the consumers' perceptions of coalho cheese from different Brazilian regions were identified, thus obtaining comprehensive insights that can be used as a guideline for coalho cheese producers to develop marketing strategies considering the intra-cultural differences.


Assuntos
Queijo/análise , Comportamento do Consumidor , Cultura , Percepção , Adolescente , Adulto , Brasil , Indústria de Laticínios/métodos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Controle de Qualidade , Sensação , Testes de Associação de Palavras , Adulto Jovem
7.
J Agric Food Chem ; 65(7): 1387-1394, 2017 Feb 22.
Artigo em Inglês | MEDLINE | ID: mdl-28124904

RESUMO

Hybrid organic-inorganic materials have been seen as a promising approach to produce sensors for the detection and/or recognition of heterocyclic aromatic amines (HAAs). This work shows the synthesis of a hybrid film as a result of the incorporation of [Fe(CN)5(NH3)]3- into chitosan (CS); CS-[(CN)5Fe(NH3)]3-. The sensitivity of CS-[(CN)5Fe(NH3)]3- toward HAA-like species was evaluated by using pyrazine (pz) as probe molecule in vapor phase by means of electrochemistry and spectroscopic techniques. The crystallinity (SEM-EDS and XRD) decrease of CS-[(CN)5Fe(NH3)]3- in comparison to CS was assigned to the disturbance of the hydrogen bond network within the polymer. Such conclusion was reinforced by the water contact angle measurements. The results presented in this work indicate physical and intermolecular interactions, mostly hydrogen bond, between [Fe(CN)5(NH3)]3- and CS, where the complex is likely trapped in the polymer with its sixth coordination site available for substitution reactions.


Assuntos
Aminas/química , Quitosana/química , Compostos Heterocíclicos/química , Ferro/química , Polímeros/síntese química , Polímeros/química
8.
Mar Pollut Bull ; 116(1-2): 192-195, 2017 Mar 15.
Artigo em Inglês | MEDLINE | ID: mdl-28069277

RESUMO

The growth of human population and deficient pollution control measures pose significant challenge to the environment. Despite conservation efforts, all sea turtle species are at some risk of extinction. The present study investigated the effect of marine debris on the gastrointestinal tract of green turtles in southeastern Brazil. Of the 777 animals evaluated, 290 showed marine debris in one segment of the gastrointestinal tract. The presence of these materials in the gastrointestinal tract may be harmful, independent of the segment involved, and increases the risk of impaction. Marine debris has become a significant hazard to Chelonia mydas in the region surveyed, causing perforation, rupture, or fecal impaction that, when not treated, is potentially fatal, exposing the intestine to bacterial infection.


Assuntos
Trato Gastrointestinal/patologia , Plásticos/efeitos adversos , Tartarugas , Resíduos/efeitos adversos , Poluentes da Água/efeitos adversos , Animais , Brasil
10.
J Atten Disord ; 21(6): 455-464, 2017 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-25359760

RESUMO

OBJECTIVE: To evaluate and compare the performance of adults with ADHD with high and standard IQ in executive functions (EF) tasks. METHOD: We investigated the neuropsychological performance of 51 adults with ADHD, compared with 33 healthy controls (HC) while performing a wide battery of neuropsychological tests that measure executive functioning. Adults with clinical diagnosis of ADHD were divided into two groups according to their IQ level (IQ ≥ 110-ADHD group with more elevated IQ, and IQ < 110-ADHD group with standard IQ). RESULTS: The ADHD group with standard IQ presented a worse executive functioning compared with the HC group in the following measures: Stroop 2 ( p = .000) and 3 ( p = .000), Trail Making Test (TMT) B ( p = .005), Wisconsin Card-Sorting Test (WCST)-perseverative errors ( p = .022) and failures to maintain set ( p = .020), Continuous Performance Test (CPT)-omission errors ( p = .005) and commission errors ( p = .000), and Frontal Assessment Battery (FAB)-conceptualization ( p = .016). The ADHD group with more elevated IQ presented only impairments in the CPT-commission errors ( p = .019) when compared with the control group. CONCLUSION: Adults with ADHD and more elevated IQ show less evidence of executive functioning deficits compared with those with ADHD and standard IQ, suggesting that a higher degree of intellectual efficiency may compensate deficits in executive functions, leading to problems in establishing a precise clinical diagnosis.


Assuntos
Transtorno do Deficit de Atenção com Hiperatividade/diagnóstico , Função Executiva/fisiologia , Inteligência , Adulto , Análise de Variância , Transtorno do Deficit de Atenção com Hiperatividade/psicologia , Cognição/fisiologia , Feminino , Humanos , Inibição Psicológica , Testes de Inteligência , Masculino , Testes Neuropsicológicos , Adulto Jovem
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