Results: 1740

Remineralizing effect of commercial fluoride varnishes on artificial enamel lesions

Abstract: The aim of this study was to evaluate soluble and insoluble fluoride concentrations in commercial varnishes, and their remineralization effect on artificial caries enamel lesions using surface and cross-sectional microhardness evaluations. Forty bovine enamel blocks were separated into four gro...

Evaluating mmp-2 and tgfß-ri expression in circulating tumor cells of pancreatic cancer patients and their correlation with clinical evolution

ABCD (São Paulo, Impr.); 32 (2), 2019
ABSTRACT Background: Metastasis is common in the diagnosis of pancreatic cancer, and the presence of epithelial-mesenchymal transition markers in circulating tumor cells may suggest worse prognosis. Aim: To correlate the number of circulating tumor cells (CTCs) in the peripheral blood of patients with...

The canonical wnt pathway in gastric carcinoma

ABCD (São Paulo, Impr.); 32 (1), 2019
ABSTRACT Background : It is believed that the Wnt pathway is one of the most important signaling involved in gastric carcinogenesis. Aim : To analyze the protein expression of canonical and non-canonical Wnt pathways in gastric carcinoma. Method : The immunohistochemistry was performed in 72 specimen...

Análise de tensões pelo método dos elementos finitos em implantes dentários com plataforma cone morse

RFO UPF; 24 (3), 2019
A previsão do comportamento mecânico de implantes dentários inclinados é um fator importante na área odontológica e o Método dos Elementos Finitos (MEF) é considerado uma ferramenta para esse fim. Objetivo: analisar a distribuição de tensões e deslocamentos em implantes cônicos do tipo cone m...

Effect of short-term ischemia on microcirculation and wound healing of adipocutaneous flaps in the rat

Acta cir. bras; 34 (12), 2019
Abstract Purpose Composite flaps used in reconstructive surgery may intra- and postoperatively suffer from hypoperfusion and/or ischemia-reperfusion influencing wound healing. We aimed to follow-up the effect of ischemia on adipocutaneous flaps' wound healing and microcirculation. Methods In anesthet...

Effects of manual chest compression on expiratory flow bias during the positive end-expiratory pressure-zero end-expiratory pressure maneuver in patients on mechanical ventilation

J. bras. pneumol; 45 (3), 2019
ABSTRACT Objective: To investigate the effects of manual chest compression (MCC) on the expiratory flow bias during the positive end-expiratory pressure-zero end-expiratory pressure (PEEP-ZEEP) airway clearance maneuver applied in patients on mechanical ventilation. The flow bias, which influences pulmo...

Inflammatory lung injury in rabbits: effects of high-frequency oscillatory ventilation in the prone position

J. bras. pneumol; 45 (5), 2019
ABSTRACT Objective: To compare the effects that prone and supine positioning during high-frequency oscillatory ventilation (HFOV) have on oxygenation and lung inflammation, histological injury, and oxidative stress in a rabbit model of acute lung injury (ALI). Methods: Thirty male Norfolk white rabbits...

Inhibitory effect of Astragalus polysaccharide on osteoporosis in ovariectomized rats by regulating FoxO3a /Wnt signaling pathway

Acta cir. bras; 34 (5), 2019
Abstract Purpose: To investigate inhibitory effect of Astragalus polysaccharide (APS) on osteoporosis in ovariectomized rats by regulating FoxO3a/Wnt2 signaling pathway. Methods: Postmenopausal osteoporosis (PMOP) animal model was developed by excising the bilateral ovaries of rats. The model rats we...

The role of ischemic preconditioning in the expression of apoptosis-related genes in a rat model of intestinal ischemia-reperfusion injury

Acta cir. bras; 34 (5), 2019
Abstract Purpose: To analyze the effects of ischemic preconditioning (IPC) in the expression of apoptosis-related genes in rat small intestine subjected to ischemia and reperfusion. Methods: Thirty anesthetized rats underwent laparotomy and were drive into five groups: control (CG); ischemia (IG); is...

Analysis of inflammatory and metabolic biomarkers in patients submitted to abdominoplasty after bariatric surgery

Acta cir. bras; 34 (5), 2019
Abstract Purpose: To evaluate the serum variations of Interleukins (Il) and CPR of abdominoplasties in post-bariatric patients and, to equate the homeostasis (HOMA) from the variations of glycemia and insulin to evolute the metabolic modifications. Methods: Fourteen women were submitted to abdominoplas...