Results: 1561

Efeitos da morte cerebral na microvasculatura pulmonar em um modelo experimental de doador de pulmão

J. bras. pneumol; 46 (2), 2020
RESUMO Objetivo A morte cerebral (MC) desencadeia alterações hemodinâmicas e inflamatórias importantes, comprometendo a viabilidade dos órgãos empregados em transplantes. Para compreender melhor as alterações microcirculatórias nos pulmões de doadores com MC, o presente estudo investigou a mic...

The protective effect of Ganoderma lucidum on testicular torsion/detorsion-induced ischemia-reperfusion (I/R) injury

Acta cir. bras; 35 (1), 2020
Abstract Purpose To investigate the protective effect of Ganoderma lucidum on testicular torsion/detorsion (T/D)-induced ischemia-reperfusion (I/R) injury. Methods Thirty male Wistar albino rats were randomly categorized into 3 groups: Group 1: sham, Group 2 ( T/D): 2,5 hours of ischemia and 7 days of ...

Local effect of simvastatin combined with different osteoconductive biomaterials and collagen sponge on new bone formation in critical defects in rat calvaria

Acta cir. bras; 35 (1), 2020
Abstract Purpose To evaluate the local effect of simvastatin (SVT) combined with deproteinized bovine bone (DBB) with hydroxyapatite/β-tricalcium phosphate biphasic ceramics (HA/TCP) and with collagen sponge (CS) on bone repair in critical size defects (CSDs) in rat calvaria. Methods Forty-two 5-m...

TNF-alpha inhibitor adalimumab attenuates endotoxin induced cardiac damage in rats

Acta cir. bras; 35 (2), 2020
Abstract Purpose To investigate the effects of adalimumab pretreatment on the lipopolysaccharide-mediated myocardial injury. Methods Twenty-eight Wistar rats were randomized into four groups (n=7). Control (C) group animals were injected once a day with intraperitoneal (i.p) 0.9 % saline for two days...

Evaluation of a collagen matrix in a mandible defect in rats submitted to the use of bisphosphonates

Acta cir. bras; 35 (10), 2020
Abstract Purpose: To assess the effect of a collagen matrix (Mucograft®) on the inflammatory process in a semi-critical experimental defect model in rats treated with bisphosphonates. Methods: Eighteen Wistar rats were randomly divided into three groups: saline (CG), alendronate (ALD) 5mg/kg (AG) or z...

Benefits of pentoxifylline for skin flap tissue repair in rats

Acta cir. bras; 35 (11), 2020
Abstract Purpose To assess the action of pentoxifylline, administered by subcutaneous route, on skin flap tissue repair in rats, and to verify the histological aspects and biomarkers. Methods Thirty-two male Wistar rats were divided into four groups: control (CT) and treated with pentoxifylline (P1, P3...

The effect of activated protein C in the experimental disseminated intravascular coagulation model formed by lipopolysaccharide infusion

Acta cir. bras; 35 (11), 2020
Abstract Purpose: In this experimental study, activated protein C (APC), which has anticoagulant, antithrombotic, profibrinolytic, anti-inflammatory and antiapoptotic properties, was used to prevent coagulopathy in a disseminated intravascular coagulation (DIC) model formatted with lipopolysaccharide (L...

Ultrastructural analysis of bone formation around dental implants in nondiabetic rats, severe diabetics not controlled and controlled with insulin

Acta cir. bras; 35 (11), 2020
Abstract Purpose: To evaluate bone formation through ultrastructural analysis around titanium implants in severe alloxanic uncontrolled diabetic rats, and controlled with insulin, in comparison with nondiabetic rats. Methods: Thirty-six male Wistar rats, weighing between 200 and 300 g, divided into thr...

Stereological study and analysis of oxidative stress during renal aging in rats

Acta cir. bras; 35 (11), 2020
Abstract Purpose To evaluate renal histological changes by stereology and morphometry and analyze the main markers of oxidative stress in rats undergoing natural aging. Methods Seventy two Wistar rats were divided into six groups of 12 rats each, which were euthanized at 3, 6, 9, 12, 18, and 24 months ...

Anthelmintic activity of nanoencapsulated carvacryl acetate against gastrointestinal nematodes of sheep and its toxicity in rodents

Abstract The objective of this study was to evaluate the efficacy of carvacryl acetate (CVA) and nanoencapsulated CVA (nCVA) on gastrointestinal nematodes of sheep. The CVA was nanoencapsulated with chitosan/gum arabic and the efficacy of nanoencapsulation (EE), yield, zeta potential, nanoparticle morpho...