Results: 1561

Impact of testicular sperm extraction and testicular sperm aspiration on gonadal function in an experimental rat model

Int. braz. j. urol; 44 (1), 2018
ABSTRACT Purpose To assess the impact of sperm retrieval on the gonadal function of rats with impaired spermatogenesis by comparing testicular sperm extraction (TESE) to aspiration (TESA). The efficacy of these procedures to sperm obtainment was also compared. Materials and Methods A pilot study showed...

Evaluation of the effects of atorvastatin and ischemic postconditioning preventing on the ischemia and reperfusion injury: experimental study in rats

Abstract Introduction: Reperfusion injury leads to systemic morphological and functional pathological alterations. Some techniques are already estabilished to attenuate the damage induced by reperfusion. Ischemic preconditioning is one of the standard procedures. In the last 20 years, several experiment...

Chronic treatment with carvacrol improves passive avoidance memory in a rat model of Parkinson's disease

Arq. neuropsiquiatr; 76 (2), 2018
ABSTRACT The present study investigated the effects of carvacrol on motor and memory deficits as well as hyperalgesia in the 6-OHDA-lesioned rat model of Parkinson's disease. The animals were subjected to unilateral microinjection of 6-OHDA into the medial forebrain bundle and treated with carvacrol (25,...

Dietary supplementation with camu-camu and continuous exercises in the treatment of obesity

Rev. Nutr. (Online); 31 (1), 2018
ABSTRACT Objective The goal of this study were to investigate the effects of continuous exercise with/or without the ingestion the Camu-camu pulp in a rat model of obesity. Methods Neonate male Wistar rats, receiving monosodium glutamate, subcutaneously were separated into foour groups: sedentary group...

Effect of constant light and immobilization stress on rat submandibular saliva secretory response induced by cholinergic and peptidergic agonists

J. oral res. (Impresa); 7 (1), 2018
The aim of this work was to analyse the parasympathetic control of submandibular saliva secretory response to cholinergic and peptidergic agonists in rats chronically exposed to constant light or repeated immobilization. Thirty two adult male Wistar rats were used: LL (8 rats exposed to constant light fo...

Influence of biomaterials on scintigraphic diagnosis of periprosthetic infections. Ceftizoxime-99m technetium model

Acta cir. bras; 33 (1), 2018
Abstract Purpose: To compare the influence of two metallic implants in the diagnosis of periprosthetic infection using 99m technetium-labeled ceftizoxime. Methods: Twenty rats were randomly divided into four groups, which received sterile and contaminated titanium and stainless steel implants. After 3...

Systemic administration of curcumin nanoparticles protects ischemia-reperfusion injury in ovaries: An animal model study

Summary Objective: Ovarian torsion must be diagnosed and treated as early as possible. The aim of the present study was to investigate the effects of intraperitoneal administration of nanocurcumin on ischemia-reperfusion injury in ovaries. Method: Thirty-five (35) healthy female Wistar rats weighing ap...

Thymoquinone reverses learning and memory impairments and brain tissue oxidative damage in hypothyroid juvenile rats

Arq. neuropsiquiatr; 76 (1), 2018
ABSTRACT In this study, the effect of thymoquinone (TQ) on propylthiouracil (PTU)-induced memory impairment was investigated in juvenile rats. The rats were grouped into control, Hypo, Hypo-TQ5 and Hypo-TQ10. Propylthiouracil increased latency time in the Morris water maze test and decreased delay in ent...

Ophthalmic adverse effects of nasal decongestants on an experimental rat model

Arq. bras. oftalmol; 81 (1), 2018
ABSTRACT Purpose: To investigate the potential effects of chronic exposure to a nasal decongestant and its excipients on ocular tissues using an experimental rat model. Methods: Sixty adult male Wistar rats were randomized into six groups. The first two groups were control (serum physiologic) and Otriv...

A avaliação da proteção miocárdica utilizando solução cardioplégica sanguínea versus solução cardioplégica cristalóide: estudo em modelo experimental de coração isolado

Resumo: INTRODUÇÃO: O efeito deletério provocado pela isquemia e reperfusão do miocárdio durante a parada cardíaca apresenta-se como uma das principais causas da síndrome de baixo débito cardíaco no período pós-operatório. Neste sentido, a utilização de solução cardioplégica na indução...