Pesquisa | SciELO

ABSTRACT Grain losses pose a threat to agricultural sustainability, particularly in developing countries. Mechanized harvesting is a key process in which losses occur; thus, its investigation is essential. Therefore, a systematic and meta-analytical review was conducted to encompass studies on quantitative soybean losses during harvesting in South America from the last two decades. The initial search yielded 1,094 scientific articles; however, only 25 studies met the inclusion criteria. This study provides an overview of technical aspects monitored on farms, guidelines to ensure efficient harvesting and literature gaps for further innovations. Because studies on soybean losses were predominantly based on continuous observational data and lacked methodological quality according to a quality scoring, only four studies were included in the meta-analysis. The meta-analysis results showed a significant relation between losses and the combine age, indicating that combines with over 10 years of use result in higher losses than newer ones (p ≤ 0.05). Conversely, operating at speeds exceeding 5 km h-1 did not lead to significant increases in soybean losses (p > 0.05). Many decisions can be taken at the farm-level to reduce losses, such as proper training of workers and adequation of combine harvesters according to each crop condition. The insights described here are timely for paving the way towards innovation in harvesting systems and minimizing grain losses by understanding the critical points within the context improving yields during soybean harvesting.

RESUMO As perdas de grãos ameaçam a sustentabilidade na agricultura, especialmente em países em desenvolvimento. A colheita mecanizada é um importante estágio em que as perdas ocorrem, sendo crucial investigá-la. Portanto, uma revisão sistemática e meta-analítica foi conduzida para analisar estudos das últimas duas décadas no tema de perdas quantitativas de soja durante a colheita mecanizada na América do Sul. A pesquisa inicial resultou em 1094 artigos científicos, entretanto, apenas 25 estudos foram selecionados devido ao critério de inclusão estabelecido. Essa revisão descreve uma visão ampla dos aspectos técnicos monitorados no campo, instruções para garantir uma colheita eficiente e lacunas da literatura para futuras inovações. Os estudos foram predominantemente baseados em dados contínuos e observacionais, além de possuírem falhas metodológicas de acordo com uma pontuação qualitativa. Assim, apenas quatro estudos foram incluídos na meta-análise. Os resultados mostraram uma relação significativa entre perdas relacionadas à idade da máquina, indicando que colhedoras com mais de 10 anos de uso produziram perdas maiores que as novas (p ≤ 0.05). Por outro lado, operar em velocidades maiores que 5 km h-1 não levou a um aumento significativo das perdas de grãos (p > 0.05). No campo, muitas decisões podem ser tomadas para reduzir as perdas, e.g., treinar operadores e configurar a colhedora de acordo com as condições da lavoura. As discussões apresentadas nessa revisão são importantes para guiar as inovações em sistemas de colheita e diminuir as perdas de grãos ao entender os pontos críticos em um conceito de maior lucratividade durante o processo.

https://doi.org/10.1590/1807-1929/agriambi.v28n1e265804

Long-term oncological and surgical outcomes after Video Endoscopic Inguinal Lymphadenectomy (VEIL) in patients with penile cancer
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Tobias-Machado, Marcos

; Ornellas, Antonio A.

; Hidaka, Alexandre K.

; Medina, Luis G.

; Mattos, Pablo A. L.

; Besio, Ruben S.

; Abreu, Diego

; Castro, Pedro R.

; Nishimoto, Ricardo H.

; Astigueta, Juan

; Dourado, Aurus

; Machado, Roberto D.

; Magnabosco, Wesley J.

; Corona-Montes, Victor

; Villoldo, Gustavo M.

; Zampolli, Hamilton C.

; Taha, Anis

; Auad, Pericles R.

; Faria, Eliney F.

; Arantes, Paulo B. O.

; Tavares, Alessandro

; Nascimento, Francisco S. M. S.

; Brazão Jr., Eder S.

; Rocha, Maurício M.

; Costa, Walter H.

; Panico, Vinicius

; Reis, Leonardo O.

; Almeida-Carrera, Roberto J.

; Silva, Rafael C.

; Zequi, Stênio C.

; Calixto, José R. R.

; Sotelo, Rene

International braz j urol

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Out 2023, Volume 49 Nº 5 Páginas 580 - 589

Resumo: En | Texto: En | PDF: En

ABSTRACT Objective: To report outcomes from the largest multicenter series of penile cancer patients undergoing video endoscopic inguinal lymphadenectomy (VEIL). Materials and Methods: Retrospective multicenter analysis. Authors of 21 centers from the Penile Cancer Collaborative Coalition-Latin America (PeC-LA) were included. All centers performed the procedure following the same previously described standardized technique. Inclusion criteria included penile cancer patients with no palpable lymph nodes and intermediate/high-risk disease and those with non-fixed palpable lymph nodes less than 4 cm in diameter. Categorical variables are shown as percentages and frequencies whereas continuous variables as mean and range. Results: From 2006 to 2020, 210 VEIL procedures were performed in 105 patients. Mean age was 58 (45-68) years old. Mean operative time was 90 minutes (60-120). Mean lymph node yield was 10 nodes (6-16). Complication rate was 15.7%, including severe complications in 1.9% of procedures. Lymphatic and skin complications were noted in 8.6 and 4.8% of patients, respectively. Histopathological analysis revealed lymph node involvement in 26.7% of patients with non-palpable nodes. Inguinal recurrence was observed in 2.8% of patients. 10y- overall survival was 74.2% and 10-y cancer specific survival was 84.8%. CSS for pN0, pN1, pN2 and pN3 were 100%, 82.4%, 72.7% and 9.1%, respectively. Conclusion: VEIL seems to offer appropriate long term oncological control with minimal morbidity. In the absence of non-invasive stratification measures such as dynamic sentinel node biopsy, VEIL emerged as the alternative for the management of non-bulky lymph nodes in penile cancer.

https://doi.org/10.1590/s1677-5538.ibju.2023.0065

Lettuce production in hydroponic and fish-farming aquaponic under different channel slopes and nutrient solutions in the NFT system
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Mendonça, Vinícius V. O.

; Silva, César A. da

; Mendonça, Claudia R. O. S. G.

; Silva, Cícero J. da

; Guimarães, Claudinei M.

Revista Brasileira de Engenharia Agrícola e Ambiental

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Set 2023, Volume 27 Nº 9 Páginas 746 - 754

Resumo: En Pt | Texto: En Pt | PDF: En | PDF: Pt

ABSTRACT The slope of cultivation channels and types of nutrient solutions in hydroponics and aquaponics influence nutrient absorption and plant production. This research aimed to evaluate lettuce production under different channel slopes and nutrient solutions in hydroponic and aquaponic systems using the nutrient film technique (NFT). A randomized block design was used, with three replicates, in a 3 × 5 split-plot scheme, with three nutrient solutions (conventional hydroponic solution and two wastewaters from the tilapia fish diets, with 15 and 18% of crude protein) and five slopes (2, 4, 6, 8 and 10%) of cultivation channels (PVC tubes). The following variables were evaluated: fresh and dry mass of shoot and roots and the chemical elements of the solutions. In the tilapia feed, the nutrient solution with 18% of protein (wastewater) provides greater production and accumulation of nutrients (N and P) in the lettuce shoot. The slope of 8% on cultivation channels provides greater production of iceberg lettuce, cultivar Lucy Brown. The different slopes and nutrient solutions studied did not influence the potassium (K) accumulation in the lettuce shoot.

RESUMO A declividade dos canais de cultivo e os tipos de solução nutritiva em hidroponia e aquaponia influenciam a absorção de nutrientes e produção vegetal. O objetivo da presente pesquisa foi avaliar a produção de alface sob diferentes declividades de canais e soluções nutritivas em sistemas hidropônico e aquapônico, em fluxo laminar de nutrientes (NFT). Utilizou-se o delineamento em blocos ao acaso, com três repetições, em esquema de parcelas subdivididas 3 × 5, com três soluções nutritivas (solução hidropônica convencional e duas águas residuárias provenientes da dieta de tilápias, a 15 e 18% de proteína bruta) e cinco declives (2, 4, 6, 8 e 10%) de canais de cultivo (tubos de PVC). Foram avaliadas as seguintes variáveis: massa fresca e seca da parte aérea e das raízes; e elementos químicos das soluções. A solução nutritiva com 18% de proteína (água residuária), na alimentação da tilápia, proporciona maior produção e acúmulo de nutrientes (N e P) na parte aérea da alface. A declividade de 8% nos canais de cultivo proporciona maior produção de alface americana, cv. Lucy Brown. As diferentes declividades e soluções nutritivas estudadas não influenciaram o acúmulo de potássio (K) na parte aérea da alface.

https://doi.org/10.1590/1807-1929/agriambi.v27n9p746-754

Immunopathological evaluation of oral squamous cell carcinomas: a case series
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Souza, Vinícius G. de

; Santos, Damilys J.

; Araújo, Tatiana S.

; Silva, Ana G.

; Ribeiro, Rosy I.

; Loyola, Adriano M.

; Cardoso, Sérgio V.

; Siqueira-Miranda, Carla S.

; Cardoso, Ludimila P.

Gaceta mexicana de oncología

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2023, Volume 22 Supl. 1 Páginas 100 - 104

Resumo: Es En | Texto: Es En | PDF: Es | PDF: En

Resumen La evaluación de la expresión del ligando 1 de muerte programada (PD-L1) es un criterio de elegibilidad para la inmunoterapia anti-PD-L1 en el carcinoma oral de células escamosas (COCE). También deben evaluarse otros componentes del microambiente tisular. Aquí se informaron cuatro casos de carcinoma de células escamosas orales. Se realizaron análisis histopatológicos del grado tumoral y TIL (infiltrado inflamatorio asociado a tumor) e inmunohistoquímica para CD4, CD8 y PD-L1. Los casos se clasificaron según el microambiente tisular en resistencia inmunitaria adaptativa, ignorancia inmunológica, tolerancia o inducción intrínseca. Este análisis destaca la importancia de comprender el microambiente inmunológico que puede presentar el COCE para la identificación de dianas terapéuticas más eficaces contra la enfermedad.

Abstract The evaluation of the expression of programmed cell death protein (PD-L1) is an eligibility criterion for anti-PD-L1 immunotherapy in oral squamous cell carcinoma (OSCC). Other components of tissue microenvironment should also be evaluated. Here, four cases of oral squamous cells carcinoma were reported. Histopathological analysis of tumor grade and TILs and immunohistochemistry for CD4, CD8, and PD-L1 was done. The cases were classified according to the tissue microenvironment in adaptive immune resistance, immunological ignorance, tolerance, or intrinsic induction. This analysis highlights the importance of understanding the immunological microenvironment that the OSCC can present for the identification of more effective therapeutic targets against the disease.

https://doi.org/10.24875/j.gamo.22000145

Phenotypic plasticity in Copaifera langsdorffii Desf. in different forest fragments in São Paulo state, Brazil
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SIQUEIRA, MARCOS VINICIUS B.M.

; SILVÉRIO, GIOVANA HENRIQUE

; CARLOS, JULIANA S.

; TOLEDO, JAYÇA A.M.

; SILVA, CLEBER JOSÉ DA

; PAULA-SOUZA, JULIANA DE

; GALASTRI, NATÁLIA A.

Anais da Academia Brasileira de Ciências

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2023, Volume 95 Nº 1 elocation e20210541

Resumo: En | Texto: En | PDF: En

Abstract Forest fragments are susceptible to environmental shifts and this demands high phenotypic plasticity of the species growing in these areas. In this context, the objective of the present work was to study the phenotypic plasticity of copaíba (Copaifera langsdorffii Desf.) based on morphological and anatomical metrics of the leaflets of plants from six forest fragments. The leaflets of C. langsdorffii individuals of the different fragments did not show qualitative differences, nonetheless, they demonstrated quantitative plasticity. Stomatal density (p = 0.017), specific leaf area (p = 0.009), palisade parenchyma (p = 0.008) and relative water content (p = 0.002), indicated a high luminous, water and nutritional influence on the development of leaflets. Based on the dry mass of the leaflets and the thickness of the palisade parenchyma, the principal component analysis explained 57.43% of the differences found between the variables. The data presented here provides evidence of the phenotypic plasticity of C. langsdorffii which, although occurring in similar soils, showed significant quantitative differences in its morphoanatomical characters.

https://doi.org/10.1590/0001-3765202320210541

Human T-lymphotropic virus type 1 and aspergillosis: an invisible co-infection
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Caterino-de-Araujo, Adele

; Silva, Marcos Vinicius da

; Vicentini, Adriana Pardini

Revista do Instituto de Medicina Tropical de São Paulo

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2023, Volume 65 elocation e4

Resumo: En | Texto: En | PDF: En

https://doi.org/10.1590/s1678-9946202365004

Genetic variability of Leishmania (Leishmania) infantum causing human visceral leishmaniasis in the Southeastern Brazil
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Lima, Vinicius Alves

; Silva, Renata Elen Costa

; Camargo, Luiz Henrique Moraes Caetano

; Hiramoto, Roberto Mitsuyoshi

; Leal, Elcio de Souza

; Braz, Lucia Maria Almeida

; Lindoso, José Angelo Lauletta

Revista do Instituto de Medicina Tropical de São Paulo

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2023, Volume 65 elocation e55

Resumo: En | Texto: En | PDF: En

ABSTRACT Leishmania infantum is a protozoan that causes visceral leishmaniasis (VL) in the Americas and some regions of Europe. The disease is mainly characterized by hepatosplenomegaly and fever, and can be fatal. Factors related to the host and parasite can contribute to the transmission of Leishmania and the clinical outcome. The intraspecific genetic variability of L. infantum strains may be one of these factors. In this study, we evaluated the genetic variability of L. infantum obtained from bone marrow smear slides from patients in the Sao Paulo State, Brazil. For this, the minicircle of the kDNA hypervariable region was used as target by Sanger sequencing. By analyzing the similarity of the nucleotides and the maximum likelihood tree (Fasttree), we observed a high similarity (98%) among samples. Moreover, we identified four different profiles of L. infantum. In conclusion, L. infantum strains from Sao Paulo State, Brazil, showed low diversity measured by minicircle of the kDNA hypervariable region.

https://doi.org/10.1590/s1678-9946202365055

Overview of Q fever in Brazil: an underestimated zoonosis Brazil
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França, Danilo Alves de

; Mioni, Mateus de Souza Ribeiro

; Fernandes, Jorlan

; Lemos, Elba Regina Sampaio de

; Duré, Ana Íris de Lima

; Silva, Marcos Vinicius Ferreira

; Langoni, Helio

; Megid, Jane

Revista do Instituto de Medicina Tropical de São Paulo

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2023, Volume 65 elocation e39

Resumo: En | Texto: En | PDF: En

ABSTRACT This review aims to provide current information about Q fever, elucidating the etiological, epidemiological, pathogenic, clinical, diagnostic, therapeutic, and prophylactic aspects of the disease for the medical community. We discuss the main forms of presentation of the agent, its ability to persist in the body, the infinite possibilities of susceptible hosts, the main known forms of transmission, its importance in populations at occupational risk, and the role of arthropods in the natural history of the disease. Focusing on Brazil, we present the cases already described and studies developed since its first report, and how there is still much to unravel. We are aware of the possibilities of the persistence of the agent and the development of severe clinical pictures and the specific treatments currently instituted. We also wish to raise awareness about the future, the new genotypes that are emerging, the need to study the effects of vaccines, and the impact of Q fever on the population. Q fever is a poorly understood disease in Latin America, and recent studies, especially in Brazil, have revealed the importance of developing new studies. etiological epidemiological pathogenic diagnostic therapeutic community body hosts transmission risk Brazil report unravel instituted future emerging vaccines population America

https://doi.org/10.1590/s1678-9946202365039

OBTENÇÃO DE AMINAS PRIMÁRIAS A PARTIR DA REDUÇÃO DE NITROCOMPOSTOS AROMÁTICOS VIA PROTOCOLOS DE REAÇÕES SUSTENTÁVEIS EM MEIO AQUOSO
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Bernardes, Breno de S.

; Costa, Thamires M. da

; Silva, Letícia de O. J. L. da

; Pinto, Ligia S. da S.

; Facchinetti, Victor

; Souza, Marcus Vinícius Nora de

; Vasconcelos, Thatyana R. A.

Química Nova

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Jul 2022, Volume 45 Nº 7 Páginas 847 - 861

Resumo: Pt | Texto: Pt | PDF: Pt

Aromatic amines are important intermediates in the industry to produce a wide array of products, and the reduction of aromatic nitro compounds is the main methodology for their preparation. Considering this fact, the objective of this review is to describe the development of sustainable methodologies for the reduction of aromatic nitro compounds for their respective amines from 2017 to 2020. Thus, throughout the text, the reaction conditions and the various reagents, solvents and catalysts used in the synthesis of aromatic amines are presented, along with the main advantages of the methodologies described.

https://doi.org/10.21577/0100-4042.20170891

10.

A 2.4 GHz Coplanar Solar Cell Patch Antenna with a Semi-Analytical Evaluation of Temperature Effects
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Cambero, Eduardo V. V.

; Silva, Vinicius S.

; Paz, Humberto P.

; Doria, Renan T.

; Casella, Ivan R. S.

; Capovilla, Carlos E.

Journal of Microwaves, Optoelectronics and Electromagnetic Applications

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Mar 2022, Volume 21 Nº 1 Páginas 194 - 206

Resumo: En | Texto: En | PDF: En

Abstract Solar cells integrated with antennas have aroused scientific interest as an attractive energy source alternative in low power devices for IoT and Wireless Sensor Network applications. Since the space for all components in the systems is scarce, different integration ideas have been proposed in this field. However, further analysis of the performance of photovoltaic modules used as structural components of antennas is still lacking. In this context, this work experimentally extracts the necessary parameters to create an equivalent circuit model of a modified solar cell used as a radiator of a 2.4 GHz coplanar patch antenna. The obtained model is then used in the numerical characterization of the Current- Voltage (I-V) curves under temperature variations. Antenna design and performance are described, and the physical modifications of a commercial solar cell used in the prototype are presented. The I-V curves were generated for temperatures ranging from 243 to 325 K. The obtained simulation results within this temperature range showed a 150 mV shift of the optimal operation point, decreasing in approximately 20 mW the supported power with the temperature rise. A predictive methodology is introduced to estimate the possible values for the fill factor, energy conversion efficiency, and current density in a modified solar cell under temperature variations, allowing a fully operational photovoltaic antenna design.

https://doi.org/10.1590/2179-10742022v21i11254187

11.

Development and Validation of a Rapid and Reliable HPLC-FLD Method for the Quantification of Ciprofloxacin and Enrofloxacin Residues in Zea mays
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Brito, Júlio C. M.

; Bernardoni, Vinícius

; Silva, Thais M. L. da

; Ramos, Laurenice S. X. S.

; Gomes, Marcelo P.

; Assis, Débora C. S. de

Journal of the Brazilian Chemical Society

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Fev 2022, Volume 33 Nº 2 Páginas 128 - 134

Resumo: En | Texto: En | PDF: En

The accumulation of antibiotics by plants is a currently concern associated to yield reduction and transference of antibiotic residues along the food web. Maize is a staple food in many parts of the world; it is also considered an important ingredient in animal nutrition. Considering the lack of validated analytical methods for the analysis of ciprofloxacin (CIPRO) and enrofloxacin (ENRO) in the shoot of Zea mays maize, we developed a reliable reversed-phase high-performance liquid chromatography method with fluorescence detection (HPLC-FLD). This method was validated for linearity, matrix effects, precision, accuracy, limits of quantification (LOQ) and detection (LOD), and robustness. The analytical curves were linear with coefficient of determination (R2) of 0.9907 for CIPRO and 0.9962 for ENRO. The LOD values were 16.65 and 6.57 μg kg−1 for CIPRO and ENRO, respectively, whereas LOQ values were 50.44 μg kg−1 (CIPRO) and 19.92 μg kg−1 (ENRO). HPLC-FLD also displayed good precision and accuracy. Therefore, the proposed method can be considered a reliable and useful tool for the analysis of ciprofloxacin and enrofloxacin in the shoot of maize.

https://doi.org/10.21577/0103-5053.20210129

12.

Floristic inventory and conservation of one of the most striking coastal mountains in the Brazilian Atlantic Forest
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Valadares, Rodrigo T.

; Dutra, Valquíria F.

; Firmino, Aline D.

; Iglesias, Diego T.

; Silva, Lucas A.

; Barros, Paulo Henrique D.

; Freitas, Vinícius C.

; Cardoso, Weverson C.

; Assis, André M.

; Gomes, José M. L.

Acta Botanica Brasilica

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2022, Volume 36 elocation e2021abb0038

Resumo: En | Texto: En | PDF: En

ABSTRACT The Atlantic Forest is made up of different vegetation types over extensive latitude. Most of its remnants are in mountain ranges, which are responsible for the maintenance of most endemic and threatened species in this domain. Here we present the floristic composition of the Área de Proteção Ambiental Mestre Álvaro (APAMA), a coastal massif at Espírito Santo State with expressive altitudinal amplitude (100-800 a.s.l.) containing remnants never floristically studied. Knowing the composition of this protected area is important because it includes an altitudinal range not yet evaluated in floristic comparisons involving highland and lowland forests between the latitudes 18-21° S. We found 493 species (in 292 genera and 91 families): ten are regional endemic species, nine are new records of occurrence for the state, and 52 are under some degree of threat of extinction. Our results indicate the presence of flora elements' typical of both highland and lowland forests, which makes the APAMA essential in a scenario extremely fragmented. Finally, our data provide an unprecedented floristic list for regional forest restoration projects, as well as an invaluable source of data for biogeographic studies that seek to understand the effect caused by neighboring vegetation types on the composition of lowland forests.

https://doi.org/10.1590/0102-33062021abb0038

13.

MAXIMIZATION OF PRODUCTION AND NET INCOME IN AGRO-FOREST SYSTEMS
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Nascimento, Vinicius T. do

; Ventura, Sergio D.

; Delgado, Angel R. S.

; Silva, Washington S. da

Engenharia Agrícola

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2022, Volume 42 Nº 2 elocation e20210017

Resumo: En | Texto: En | PDF: En

ABSTRACT In this study, we present computational procedures to solve problems for the maximization of production and net income from crops or trees in a randomly generated agroforestry system with limited inputs, based on the Logarithmic Barrier Method. The results obtained showed numerical consistency for viability and optimality of both problems in the agroforestry scenarios tested, as well as promoted conditions to solve the problems with real data.

https://doi.org/10.1590/1809-4430-eng.agric.v42n2e20210017/2022

14.

Antinociceptive and anti-inflammatory effects of extract of Celtis iguanaea (Jacq.) Sargent leaves in mice
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MORAES, WEULLER FILHO DE

; SILVA, DAIANY PRISCILLA B. DA

; FLORENTINO, IZIARA F.

; ALMEIDA, DIONYS S.

; MOREIRA, LORRANE KELLE S.

; NASCIMENTO, MARCUS VINÍCIUS M.

; CARVALHO, PABLINNY M.G. DE

; COUTO, RENÊ O. DO

; PAULA, JOSÉ R. DE

; COSTA, ELSON A.

Anais da Academia Brasileira de Ciências

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2022, Volume 94 elocation e20191339

Resumo: En | Texto: En | PDF: En

Abstract The antinociceptive and anti-inflammatory activities of crude ethanolic extract of Celtis iguanaea leaves and their active fractions are reported. The oral treatment with crude ethanolic extract (CEE; 100, 300 or 1000 mg/Kg) inhibited the number of writhings in a dose-dependent manner. The intermediate dose also inhibited formalin-induced nociception in both phases. The oral treatment with dichloromethane fraction (DF; 9 mg/Kg) produced antinociceptive effect in both phases of formalin test; however, the treatment with ethyl acetate fraction (EAF; 16 mg/Kg) reduced pain only in the second phase of this test. The oral treatments with CEE (300 mg/Kg) or DF (9 mg/Kg) reduced the nociception induced by capsaicin and pre-treatment with naloxone did not change these effects. The oral administration of CEE (300 mg/Kg), DF (9 mg/Kg) or ethyl EAF (16 mg/Kg) reduced ear edema, leukocytes migration and myeloperoxidase activity. Furthermore, the oral treatment with CEE (300 mg/Kg) or EAF (16 mg/Kg) reduced the level of Tumor Necrosis Factor - Alpha (TNF-α) in the pleurisy test. In conclusion, the DF showed antinociceptive activity that involves the vanilloid system as well as anti-inflammatory effect and the EAF showed anti-inflammatory activity involving the reduction of TNF-α cytokine.

https://doi.org/10.1590/0001-3765202220191339

15.

Staphylococcus aureus and Enterococcus faecium isolated from pigeon droppings (Columba livia) in the external environment close to hospitals
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Vasconcellos, Henrique Vieira Gartz de

; Silva, Kerollyn Fernandes Bernardes

; Montenegro, Horácio

; Miguel, Camila Botelho

; Tizioto, Polyana

; Agostinho, Ferdinando

; Araújo, Marcelo Costa

; Ribas, Rosineide Marques

; Silva, Marcos Vinícius da

; Soares, Siomar de Castro

; Rodrigues Júnior, Virmondes

; Batistão, Deivid William da Fonseca

; Oliveira, Carlo José Freire

; Rodrigues, Wellington Francisco

Revista da Sociedade Brasileira de Medicina Tropical

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2022, Volume 55 elocation e0353-2021

Resumo: En | Texto: En | PDF: En

ABSTRACT Background: Domestic pigeons carry pathogens in their droppings, posing a potential public health problem. Methods: The phenotypic and genotypic antimicrobial resistances of Staphylococcus aureus and Enterococcus faecium in the feces of urban pigeons near hospitals with intensive care units were measured. Results: Twenty-nine samples showed Enterococcus growth, whereas one was positive for S. aureus. The S. aureus isolate was sensitive to the antibiotics tested via antibiogram, however resistance genes were identified. E. faecium isolates showed phenotypic resistance to gentamicin, erythromycin, and ciprofloxacin. Conclusions: Antimicrobial profiles harmful to health were demonstrated in bacterial pathogens isolated from the external environment of hospitals.

https://doi.org/10.1590/0037-8682-0353-2021

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