Results: 1561

Effect of atenolol pre-treatment in heart damage in a model of intestinal ischemia-reperfusion

Acta cir. bras; 32 (11), 2017
Abstract Purpose: To investigate the effects of atenolol in inflammatory mediator and oxidative stress in a myocardial injury by intestinal ischemia/reperfusion in rat model. Methods: Adult Wistar male rats were randomly (n=8), anesthetized and divided in: Sham: submitted to operation only; group SS+...

The expression of endothelial and inducible nitric oxide synthase and apoptosis in intestinal ischemia and reperfusion injury under the action of ischemic preconditioning and pentoxifylline

Acta cir. bras; 32 (11), 2017
Abstract Purpose: To investigate the expression of nitric oxide synthase (NOS) and apoptosis associated with ischemic preconditioning (IPC) and pentoxifylline (PTX) in intestinal ischemia (I) and reperfusion (R) injury. Methods: Thirty male rats were assigned to 5 groups: (CG), no clamping of the sup...

Tadalafil protector effect during ischemia-reperfusion in rats

Acta cir. bras; 32 (11), 2017
Abstract Purpose: To evaluate histological parameters in rat renal tissue after tadalafil use during hot ischemia for 45 minutes and reperfusion for 24 hours. Methods: Twenty rats were divided into 2 groups. In the experimental group 10 mg/kg of tadalafil was used per gavage before the procedure. All...

Cardiac, Metabolic and Molecular Profiles of Sedentary Rats in the Initial Moment of Obesity

Arq. bras. cardiol; 109 (5), 2017
Abstract Background: Different types of high-fat and/or high-energy diets have been used to induce obesity in rodents. However, few studies have reported on the effects observed at the initial stage of obesity induced by high-fat feeding on cardiac functional and structural remodelling. Objective: To c...

Multidimensional study of orofacial chronic neuropathic pain: an experimental study in rats

J. oral res. (Impresa); 6 (10), 2017
Orofacial neuropathic chronic pain (NCP) is frequently attributed to lesions caused by orofacial surgeries and dental treatments. there are many experimental models available to study orofacial NCP, however, many are extremely painful for the animal due to the amplitude of the innervated region. a previo...

Study of the protective effect of dexamethasone on cisplatin-induced ototoxicity in rats

Acta cir. bras; 32 (10), 2017
Abstract Purpose: To evaluate the ability of dexamethasone to protect against cisplatin (CDDP)-induced ototoxicity. Methods: Male Wistar rats were divided into the following three groups: 1) Control (C): 6 animals received intraperitoneal (IP) saline solution, 8 ml/kg/day for four days; 2) C + CDDP: ...

The effects of local ischemic preconditioning and topical hypothermia in renal ischemia/reperfusion injury in rats

Acta cir. bras; 32 (10), 2017
Abstract Purpose: Topical hypothermia and local ischemic preconditioning have been shown to reduce renal ischemia-reperfusion (I/R) injury individually. We examined whether combination of both strategies lessens renal I/R injury. Methods: Post right nephrectomy, 40 male Wistar rats were randomly assi...

Numeric and volumetric changes in Leydig cells during aging of rats

Acta cir. bras; 32 (10), 2017
Abstract Purpose: To analyze the effects of aging in rats on the nuclear volume, cytoplasmic volume, and total volume of Leydig cells, as well as their number. Methods: Seventy-two Wistar rats were divided into six subgroups of 12 rats, which underwent right orchiectomy at 3, 6, 9, 12, 18, and 24 mont...

Alternative animal model for studies of total skin thickness burns

Acta cir. bras; 32 (10), 2017
Abstract Purpose: To present an alternative experimental model of third degree burn of easy reproducibility. Methods: Eighteen male Wister rats were randomly divided into three groups, 6 of which were allocated to each group. A soldering iron coupled to an aluminum plate was used to produce burn, at a ...

An experimental study of ascorbic acid effects in acute renal failure under general anesthesia

Acta cir. bras; 32 (10), 2017
Abstract Purpose: To evaluate the preventive effect of ascorbic acid on sevoflurane-induced acute renal failure in an experimental rat model. Methods: Twenty-four adult male Wistar rats were randomly distributed into three groups. Subjects were allocated into 3 groups: Group I received sevoflurane onl...