12 documents found, page 1 of 2
Exogenous surfactant prevents hyperoxiainduced lung injury in adult mice.
Bezerra, Frank Silva; Ramos, Camila de Oliveira; Castro, Thalles de Freitas; Araújo, Natália Pereira da Silva; Souza, Ana Beatriz Farias deBackground: In addition to the risk of developing ventilator-induced lung injury, patients with ARDS are at risk of developing hyperoxic injury due the supra-physiological oxygen supplementation clinically required to reverse hypoxemia. Alterations of endogenous surfactant system participate in the pulmonary dysfunction observed in ARDS. Administration of exogenous surfactant could have protective effects durin...
The administration of surfactant decreased oxidative stress in lungs of mice ex...
Machado, Dafne Fernandes; Campos, Keila Karine Duarte; Silva, Natália Pereira da; Ramos, Camila de Oliveira; Cangussú, Silvia DantasThe alveolar surfactant, which composition consists of a unique and complex mixture of lipids and proteins, has immunomodulatory action. This study aimed to evaluate the effects of exogenous surfactant on pulmonary inflammatory response in mice exposed to cigarette smoke (CS). Twenty-four mice C57BL/6 were divided into four groups: control group exposed to ambient air (CG); surfactant treated group (SG); CS exp...
High-Fat diet increases HMGB1 expression and promotes lung inflammation in mice...
Souza, Ana Beatriz Farias de; Chírico, Máira Tereza Talma; Cartelle, Christiane Teixeira; Costa, Guilherme de Paula; Silva, André Talvani Pedrosa daThis study aims to evaluate the effects of a high-fat diet and mechanical ventilation on the pulmonary and systemic inflammatory response in C57BL/6 mice. Male C57BL/6 mice were divided into two groups: one received a standard diet, and the other received a high-fat diet. After 10 weeks, the groups were further divided into two groups each: control group (CG), mechanical ventilation group (MVG), diet group (DG)...
Neutrophil vacuolization in peripheral blood smear assessed with May Grünwald-G...
Campos, João Rodrigo; Parreira, José Gustavo; Rezende Neto, João Baptista; Abreu, Emanuelle Maria Savio de; Andrade, Thais; Moore, ErnestTissue trauma induces migration and activation of neutrophils through specific mediators. Vacuolated neutrophils in peripheral blood smear of septic patients correlated with mortality. However, scarce data exist with respect to findings in hemorrhagic shock (HS) trauma patients. The aim of this work was to evaluate the number and size of cytoplasmic and nuclear vacuoles in polymorphonuclear neutrophil (PMN) obt...
Tobacco-free cigarette smoke exposure induces anxiety and panic-related behavio...
Chírico, Máira Tereza Talma; Bezerra, Frank Silva; Guedes, Mariana Reis; Souza, Ana Beatriz Farias de; Silva, Fernanda Cacilda dos SantosSmokers, who generally present with lung damage, are more anxious than non-smokers and have an associated augmented risk of panic. Considering that lung damage signals specific neural pathways that are related to affective responses, the aim of the present study was to evaluate the influence of pulmonary injury on anxiety and panic-like behaviours in animals exposed to cigarette smoke with and without tobacco. ...
A potential link among antioxidant enzymes, histopathology, and trace elements ...
Souza, Carolina Carvalho de; Barreto, Tatiane Oliveira; Silva, Sydnei Magno da; Pinto, Aldair Junio Woyames; Figueiredo, Maria MartaCanine visceral leishmaniasis (CVL) is a severe and fatal systemic chronic inflammatory disease. We investigated the alterations in, and potential associations among, antioxidant enzymes, trace elements and histopathology in CVL. Blood and tissue levels of Cu-Zn superoxide dismutase, catalase and glutathione peroxidase were measured in mixed-breed dogs naturally infected with Leishmania infantum chagasi, sympto...
Lycopene pretreatment improves hepatotoxicity induced by acetaminophen in C57BL...
Bandeira, Ana Carla Balthar; Silva, Rafaella Cecília da; Rossoni Júnior, Joamyr Victor; Figueiredo, Vivian Paulino; Silva, André Talvani Pedrosa daAcetaminophen (APAP) is an antipyretic and analgesic drug that, in high doses, leads to severe liver injury and potentially death. Oxidative stress is an important event in APAP overdose. Researchers are looking for natural antioxidants with the potential to mitigate the harmful effects of reactive oxygen species in different models. Lycopene has been widely studied for its antioxidant properties. The aim of th...
Variation in neuronal differentiation of a newly isolated mouse embryonic stem ...
Tavares, Rubens Lene Carvalho; Cortes, Paloma Alvarenga; Azevedo, Camila Issa de; Cangussú, Silvia Dantas; Camargos, Aroldo FernandoNeural precursor differentiation from mouse ES (embryonic stem) cells have been demonstrated using EB (embryoid body), co-culture on stromal feeder layers, and in the absence of external inducing signals. Most of available mouse ES cell original research articles have worked with only six different cell lines. Our goals were to isolate one new mouse ES lineage, and perform a detailed immunocytochemistry study d...
Ethical abuses in the authorship of scientific papers.
Carneiro, Marco Antonio Alves; Cangussú, Silvia Dantas; Fernandes, Geraldo Wilson AfonsoImposturas na Autoria de Artigos Científicos. Problemas relacionados a determinação de autoria de trabalhos científicos são freqüentes. Estes problemas vêm se agravando em decorrência da supervalorização do número de publicações no mundo acadêmico, uma vez que, a publicação de artigos científicos tornou-se uma referência de sucesso em um campo com poucas oportunidades de trabalho. Este artigo revê os abusos na ...
Enteric neuronal damage, intramuscular denervation and smooth muscle phenotype ...
Campos, Camila França; Cangussú, Silvia Dantas; Duz, Ana Luiza Cassin; Cartelle, Christiane Teixeira; Noviello, Maria de Lourdes; Veloso, Vanja MariaWe developed a novel murine model of long-term infection with Trypanosoma cruzi with the aim to elucidate the pathogenesis of megacolon and the associated adaptive and neuromuscular intestinal disorders. Our intent was to produce a chronic stage of the disease since the early treatment should avoid 100% mortality of untreated animals at acute phase. Treatment allowed animals to be kept infected and alive in ord...