Results 41 to 50 of about 34,027 (206)

A New Species of Plasmodium of the Subgenus Novyella Infecting White‐Shouldered Fire‐Eyes (Pyriglena leucoptera) (Aves: Thamnophilidae) in Brazil

Integrative Zoology, Volume 21, Issue 1, Page 192-202, January 2026.
South America has a remarkable genetic diversity of avian haemosporidians, yet only a few species have been described combining molecular and morphological data. This study introduces Plasmodium (Novyella) pyriglenae sp. nov., a new species infecting the white‐shouldered fire‐eye (Pyriglena leucoptera) in Brazil.
Luiz Gustavo Magalhães Alves, Pedro Henrique Oliveira Pereira, Vitória Loiola Batista, Leonardo Esteves Lopes, Érika Martins Braga   +4 more
wiley   +1 more source

Natural Products Inhibit Bacterial Growth and Modulate Quorum‐Sensing Systems Las and Rhl in Pseudomonas aeruginosa PA14

Chemistry &Biodiversity, Volume 22, Issue 12, December 2025.
ABSTRACT Quorum sensing (QS) is a bacterial cell communication system in Pseudomonas aeruginosa, which regulates the production of several virulence factors, including pyocyanin, exoproteases, and biofilm formation. Natural products (NPs) have demonstrated their ability to control QS in different bacteria. This work evaluated the antimicrobial and anti‐
Oswaldo Pablo Martínez‐Rodríguez, Rodolfo García‐Contreras, Rodrigo Aguayo‐Ortiz, Itzel Rubí Yeverino, Carlos A. Fajardo‐Hernández, Albert D. Patiño, Hugo A. Hernández Pérez, Mariel Hernández‐Garnica, Mario Figueroa   +8 more
wiley   +1 more source

Relatório de atividades de pesquisa & desenvolvimento da Embrapa Pecuária Sul 1996-1999. [PDF]

, 2014
Ações de pesquisa & desenvolvimento; Produção tecnológica; Principais resultados obtidos; Parcerias; Formação de recursos humanos; Eventos de transferência de tecnologia e imagem; Publicações; Evolução da informática.bitstream/item/110359/1/RELATORIO-DE ...
EMBRAPA PECUÁRIA SUL.
core  

Trypanosoma cruzi P21 Is a Pleiotropic Protein That Is Involved in Parasite Host Cell Invasion and Intracellular Parasitism

MicrobiologyOpen, Volume 14, Issue 6, December 2025.
This study reveals the pleiotropic role of Trypanosoma cruzi P21 protein in the low‐virulence G strain. P21 knockout significantly impairs parasite invasion, intracellular multiplication, and egress in vitro. In vivo, P21 deficiency leads to reduced cardiac tissue parasitism, suggesting its role in establishing and maintaining silent infections.
Nelsa Paula Inácio Uombe, Teresiama Velikkakam, Anna Clara Azevedo Silveira, Cassiano Costa Rodrigues, Bruna Cristina Borges, Thaise Lara Teixeira, Cecília Luiza Pereira, João Paulo Silva Servato, Normanda Souza Melo, Renato Arruda Mortara, José Franco da Silveira, Claudio Vieira da Silva   +11 more
wiley   +1 more source

Aspectos epidemiológicos, clínicos e anatomopatológicos da infecção por Gurltia paralysans em gatos Epidemiological, clinical and pathological aspects of Gurltia paralysans infection in cats

Pesquisa Veterinária Brasileira, 2013
Nos últimos 20 anos, uma doença neurológica desconhecida acometeu populações de gatos da Região da Campanha do RS e tornou-se um desafio diagnóstico para os veterinários locais.
Monique Togni, Welden Panziera, Tatiana M. Souza, José C. Oliveira Filho, Alexandre Mazzanti, Claudio S.L. Barros, Rafael A. Fighera   +6 more
doaj  

Long non-coding RNA levels can be modulated by 5-azacytidine in Schistosoma mansoni

Scientific Reports, 2020
Schistosoma mansoni is a flatworm that causes schistosomiasis, a neglected tropical disease that affects more than 200 million people worldwide. There is only one drug indicated for treatment, praziquantel, which may lead to parasite resistance emergence.
Murilo S. Amaral, Lucas F. Maciel, Gilbert O. Silveira, Giovanna G. O. Olberg, João V. P. Leite, Lucas K. Imamura, Adriana S. A. Pereira, Patricia A. Miyasato, Eliana Nakano, Sergio Verjovski-Almeida   +9 more
doaj   +1 more source

Rhizobium tropici Metabolites Induce Defence‐Related Genes and Promote Sclerotinia Sclerotiorum Stem Rot Control in Chickpeas

Journal of Sustainable Agriculture and Environment, Volume 4, Issue 4, December 2025.
Concentrated metabolites from Rhizobium tropici (CM‐RT) were evaluated for their ability to induce resistance and control Sclerotinia stem rot in chickpeas. Root application of CM‐RT reduced disease incidence when compared to acibenzolar‐S‐methyl. Gene expression analysis revealed upregulation of defence‐related genes linked to jasmonic acid, ethylene,
Lucas José de Sousa, Ivonaldo Reis Santos, Osmundo Brilhante de Oliveira‐Neto, Fábio Bueno Reis Junior, Manuel Megías, Luiz Eduardo Bassay Blum, Angela Mehta   +6 more
wiley   +1 more source

Prevalência de parasitoses intestinais entre crianças de 4-12 anos no Crato, Estado do Ceará: um problema recorrente de saúde pública = Prevalence of intestinal parasite infections among 4- to 12-year-old children in Crato, Ceará State

Acta Scientiarum. Health Sciences, 2011
Nesse estudo, foi estimada a frequência de parasitoses intestinais em 383 crianças do bairro Pinto Madeira em Crato, Estado do Ceará. Os dados foram obtidos por meio de inquérito domiciliar e de exame coproparasitológico abrangendo residências com ...
Izabel Alencar Barros Vasconcelos, José Wellington Oliveira, Francisco Rubens Filgueiras Cabral, Henrique Douglas Melo Coutinho, Irwin Rose Alencar Menezes   +4 more
doaj  

Prevalência de neurocisticercose em pacientes atendidos no setor de neurologia do Hospital Universitário Regional de Maringá, Estado do Paraná, Brasil - DOI: 10.4025/actascihealthsci.v29i1.111

Acta Scientiarum. Health Sciences, 2007
Com o objetivo de estimar a prevalência de neurocisticercose, livros de registro de pacientes internados e ambulatoriais atendidos no setor de neurologia do Hospital Universitário Regional de Maringá, Estado do Paraná, no período de janeiro de 2000 a ...
Maria da Luz Ribeiro Moitinho, Sonia Dacome   +1 more
doaj   +1 more source

Collective Response and Navigation Dynamics of Magnetospirillum gryphiswaldense under Rotating Magnetic Fields

Small, Volume 21, Issue 50, December 17, 2025.
The dynamics of Magnetospirillum gryphiswaldense under rotating magnetic fields are explored through the analysis of thousands of trajectories. The study reveals distinct navigation modes and transitions influenced by field strength and frequency. Directionality, alignment, and swimming behavior are examined to uncover how these microorganisms respond ...
Danny Villanueva, Alicia G. Gubieda, Alfredo García‐Arribas, Ana Abad‐Diaz‐De‐Cerio, Jorge Feuchtwanger, David de Cos, M. Luisa Fdez‐Gubieda   +6 more
wiley   +1 more source