Results: 723

Parecoxib mitigates lung ischemia-reperfusion injury in rats by reducing oxidative stress and inflammation and up-regulating HO-1 expression

Acta cir. bras; 36 (9), 2021
ABSTRACT Purpose: To investigate the protective effect of parecoxib against lung ischemia-reperfusion injury (LIRI) in rats and the mechanism. Methods: Thirty rats were divided into sham-operated, LIRI and LIRI+parecoxib groups. LIRI model (ischemia for 60 min, followed by reperfusion for 120 min) was ...

The effect of Hippophae rhamnoides L. extract on acrylamideinduced brain injury in rats

Acta cir. bras; 36 (10), 2021
ABSTRACT Purpose: Reactive oxygen species (ROS), interleukin-1β (IL-1β) and tumor necrosis factor-α (TNF-α) have been shown in the pathogenesis of acrylamide neurotoxicity. Hippophae rhamnoides L. extract (HRE) has a cytoprotective effect by stabilizing the production of ROS, IL-1 ...

Sucralfate enemas reduce the oxidative tissue damage and preserves the contents of E-cadherin and Β-catenin in colonic mucosa without fecal stream

Acta cir. bras; 36 (10), 2021
ABSTRACT Purpose: To evaluate the effects of sucralfate enemas in tissue contents of E-cadherin and ?-catenin in an experimental diversion colitis. Methods: Thirty-six male Wistar rats were submitted to a proximal colostomy and a distal mucous fistula. They were allocated into three groups: first group...

Antidepressant-like activity of ethanol extract of leaves of Caesalpinia pulcherrima in unstressed and stressed mice

In the present study, antidepressant-like activity of ethanol extract of leaves of Caesalpinia pulcherrima was evaluated in Swiss young male albino mice. Stress was induced in mice by subjecting them to unpredictable mild stress for 21 successive days. Ethanol extract of the leaves (100, 200 and 400 mg/ ...

Efeito da adição do ácido palmítico e da vitamina E ao diluidor Tris-gema na criopreservação de sêmen canino

Acta sci. vet. (Impr.); 49 (), 2021
Canine sperm is a very delicate cell that is quite susceptible to oxidative stress since the cytoplasm is restricted and features little antioxidant reserves. Furthermore, the sperm membrane has some polyunsaturated fatty acids sensitive to lipid peroxidation, which makes it important to addition antioxi...

Oxidative stress in female dogs with mammary neoplasms

Pesqui. vet. bras; 41 (), 2021
The result of the reaction of free radicals with biomolecules is the formation of substances with the potential of inducing oxidative damage, a condition known as oxidative stress. There are voluminous literature data reporting the association, both as a cause and as a consequence, between different dise...

Influência de polimorfismos nos genes antioxidantes GSTM1, GSTT1 e GSTP1 no desenvolvimento de complicações oftalmológicas em diabéticos tipo 2

Clin. biomed. res; 41 (2), 2021
Introdução: A diabetes tipo 2 (DM2) é uma desordem metabólica ocasionada pela disfunção das células beta pancreáticas que interferem na produção de insulina e/ou pela resistência dos órgãos alvos a esse hormônio. Níveis elevados de radicais livres em conjunto com o declínio das defesas an...

Renoprotective effect of N-acetylcysteine depends upon the severity of the ischemia reperfusion injury

Braz. j. med. biol. res; 54 (11), 2021
Acute kidney injury (AKI) is a common complication in seriously ill patients, while renal ischemia-reperfusion (I/R) injury is the most frequent event in this oxidative renal injury. N-acetylcysteine (NAC) is a small molecule containing a thiol group that has antioxidant properties, promoting detoxificat...

Relationship between short and long-term glycemic variability and oxidative stress in type 1 diabetes mellitus under daily life insulin treatment

ABSTRACT Objectives: The purpose of this study was to investigate the heterogeneity of the association between glycemic variability and oxidative stress markers in T1DM patients under daily life insulin treatment. Subjects and methods: We studied, in a cross-sectional analysis, 76 T1DM patients without...

Biomarker responses of cardiac oxidative stress to high intensity interval training in rats

Motriz (Online); 27 (), 2021
Abstract Aim: The present study aimed to verify the cardiac oxidative stress biomarker responses to high-intensity interval training (HIIT) in rats. Methods: Sixteen male Wistar rats weighing 250 to 300 g were equally divided into two groups (8 animals/group): sedentary control (SC) and trained group (...