Results 201 to 210 of about 36,838 (256)

Dicentrine, an Aporphine Alkaloid From Ocotea langsdorffii, Induces Mitochondrial Dysfunction and Oxidative Stress in Leishmania (L.) infantum

Chemistry &Biodiversity, Volume 23, Issue 8, August 2026.
Dicentrine, an aporphine alkaloid, exhibits potent in vitro antileishmanial activity against Leishmania species with high selectivity and low macrophage cytotoxicity. Mechanistic studies reveal that the compound triggers parasite death possibly by inducing mitochondrial membrane disruption and oxidative stress.
Camila S. de Freitas, Eduardo Oliveira S. da Silva, Daniela C. Tristão, Guilherme M. Antar, Daniela P. Lage, Dóris M. Abrão, Luciana M. Ribeiro Antinarelli, Elaine S. Coimbra, João Henrique G. Lago, Eduardo A. F. Coelho   +9 more
wiley   +1 more source

Spatial and temporal relationships between human and canine visceral leishmaniases in Belo Horizonte, Minas Gerais, 2006-2013. [PDF]

Parasit Vectors, 2018
Bruhn FRP, Morais MHF, Cardoso DL, Bruhn NCP, Ferreira F, Rocha CMBMD.   +5 more
europepmc   +1 more source

Precipitation of niobic acid from potassium niobate in sulphuric acid solution: A route to niobium oxide

The Canadian Journal of Chemical Engineering, Volume 104, Issue 8, Page 4419-4434, August 2026.
Graphical abstract illustrating the niobic acid precipitation process applied and the product obtained. Abstract This study investigates the precipitation of niobic acid (Nb2O5.nH2O) from potassium niobate solution with addition of sulphuric acid, and its subsequent thermal conversion into niobium oxide (Nb2O5). Thermodynamic modelling with PHREEQC and
Cássia R. Souza, Gabriela C. Silva, Isabel P. Silva, Frederico M. Penha, Sônia D. F. Rocha   +4 more
wiley   +1 more source

Species Extirpation and Colonization Reveal Mixed Homogenization and Differentiation Across Terrestrial Taxa After One of the World's Largest Tailings Dam Failures

Ecology and Evolution, Volume 16, Issue 8, August 2026.
Fundão tailings‐dam failure (2015)—study area and impact gradient. Regional maps locate the Rio Doce Basin in southeastern Brazil and the Fundão dam (red cross), with the black rectangle marking the extent of the main map. The main map follows the downstream tailings pathway along the river corridor (plume highlight).
Reginaldo A. F. Gusmão, Eduardo H. Barros, Tássia J. Bertotto, Marianne Azevedo‐Silva, Tamilie Carvalho, Rogerio L. Rodrigues, Eduardo B. Segatto, Renan L. Betzel, Gustavo P. Pizziolo, Rafaela G. Gatti, Fernanda J. da Silva, Thiago Gonçalves‐Souza   +11 more
wiley   +1 more source

BELO HORIZONTE FEZ 100 ANOS

Projeto História, 2012
Regina Helena Alves da Silva, Vera Regina Veiga França   +1 more
openaire   +1 more source

SARS‐CoV‐2 Spike Peptides Trigger Nociceptive Responses Through Spinal TLR4 Pathways

European Journal of Pain, Volume 30, Issue 7, August 2026.
ABSTRACT Background Pain is a common neurological manifestation of COVID‐19, yet the mechanisms by which SARS‐CoV‐2 spike protein fragments contribute to nociceptive processing remain poorly understood. We investigated whether spike‐derived peptides directly activate spinal neuroimmune pathways involved in pain signalling.
Bruno Eduardo Silva, Rayner Ribeiro Cardoso, Lívia Maria Ribeiro Rosário, João Paulo Prado, Rafaela Silva dos Santos, Flávio Protasio Veras, Mylena de Souza, Eduardo Maffud Cilli, Danilo Olivier, Marco Antonio de Andrade Belo, Ives Charlie‐Silva, Ester Siqueira Caixeta, Angel Roberto Barchuk, Albená Nunes‐Silva, Thiago Roberto Lima Romero, Giovane Galdino   +15 more
wiley   +1 more source

Sex Differences in Advanced HIV Disease at Presentation in Care Among People Living With HIV in Latin America and the Caribbean

Journal of the International AIDS Society, Volume 29, Issue 8, August 2026.
Abstract Introduction Despite an overall recent decline of 28% in the region, AIDS‐related deaths have increased among women in some Latin American countries. Low HIV risk perception among women may contribute to late diagnosis. We compared advanced HIV disease (AHD) at care enrolment between males and females in Latin America and the Caribbean ...
Yanink Caro‐Vega, Jessica Mejía‐Castrejón, Lorena Guerrero‐Torres, Carina Cesar, Claudia P. Cortes, Daisy Maria Machado, Paula M. Luz, Jorge Andrade‐Pinto, Marco Tulio Luque, Eduardo Gotuzzo, Vanessa Rouzier, Jessica L. Castilho, Peter F. Rebeiro, Brenda Crabtree‐Ramírez, for the Caribbean, Central & South American Network for HIV Epidemiology (CCASAnet)   +15 more
wiley   +1 more source