Now showing items 1-10 of 59
Absence of DNA damage in multiple organs after oral exposure to fluoride in Wistar rats
(Bulletin of Environmental Contamination and Toxicology, 2006-11-01) [Artigo]
Antimicrobial endodontic compounds do not modulate alkylation-induced genotoxicity and oxidative stress in vitro
(Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontology, 2006-08-01) [Artigo]
Objective: To investigate if formocresol, paramonochlorophenol, or calcium hydroxide modulate the genotoxic effects induced by the oxidatively damaging agent hydrogen peroxide (H 2O 2) or the alkylating agent methyl ...
Association between solitary keratoacanthoma and cigarette smoking: A case-control study
(Dermatology Online Journal, 2006-12-01) [Artigo]
Solitary keratoacanthoma (KA) is a common benign epithelial tumor of the skin characterized by rapid growth and a tendency toward spontaneous regression. The exact etiology and classification of KA are a matter of debate. ...
Biocompatibility of glass-ionomer cements using mouse lymphoma cells in vitro
(Journal of Oral Rehabilitation, 2006-12-01) [Artigo]
Glass-ionomer cements are widely used in dentistry as restorative materials and adhesives for composite restorations. A number of genotoxicity studies have been conducted using these materials with results conflicting so ...
Biocompatibility of gutta-percha solvents using in vitro mammalian test-system
(Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontology, 2007-05-01) [Artigo]
Objectives. Taking into consideration that DNA damage and cellular death play important roles during carcinogenesis, the purpose of the present study was to evaluate in vitro genotoxic or cytotoxic effects of chloroform ...
A comparison of human and porcine acellular dermal tissues in the subcutaneous space of a rat model
(Orbit, 2005-12-01) [Trabalho apresentado em evento]
The study compared the host response to a human and a porcine acellular dermal tissue implanted in the subcutaneous space of a rat model. The human and porcine acellular grafts were surgically implanted in the subcutaneous ...
Cigarette smoke affects apoptosis in rat tongue mucosa: Role of bcl-2 gene family
(Journal of Molecular Histology, 2005-10-01) [Artigo]
While it has been clearly demonstrated that smoking is the most significant exogenous factor involved in oral carcinogenesis, little is known about the global molecular and cellular changes that occur prior to the appearance ...
DNA damage in multiple organs after exposure to chlorhexidine in Wistar rats
(International Journal of Hygiene and Environmental Health, 2007-03-01) [Artigo]
Since chlorhexidine is effective against microorganisms, it is widely recommended in dentistry. However, studies have provided evidence that chlorhexidine is toxic for a variety of cell types. In order to identify potential ...
Ex vivo biocompatibility tests of regular and white forms of mineral trioxide aggregate
(International Endodontic Journal, 2006-01-01) [Artigo]
Aim: To examine the genotoxicity and cytotoxicity of regular and white mineral trioxide aggregate (MTA) ex vivo by the single-cell gel (comet) assay and trypan blue exclusion test, respectively. Methodology: Aliquots of 1 ...
Heart failure due to right ventricular metastatic neuroendocrine tumor
(International Journal of Cardiology, 2008-05-23) [Carta]
We report a case of a female patient that was referred to our service with progressive weakness and dyspnea. Three years ago, she had been submitted to hysterectomy and salpingo-oforectomy followed by adjuvant radiotherapy ...