Publications by authors named "Fabricio T A de Souza"

Laryngocele is defined as a dilation of the laryngeal saccule forming an air sac. Some differential diagnoses for laryngocele have been reported. The aim of the present paper was to describe a case of a patient referred for the evaluation a suspected thyroid nodule that was subsequently diagnosed as a mixed laryngocele.

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Objective: Despite the high frequency of impacted teeth and increased frequency of lesions in dental follicles (DF) with aging, DF age-changes remain unclear. We compared the global methylation and hydroxymethylation profiles in DF in relation to age.

Design: DF associated with impacted lower third molars were obtained from 59 individuals.

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Ameloblastoma and adenomatoid odontogenic tumor (AOT) are jaw tumors derived from the teeth forming apparatus. While ameloblastoma is a destructive, debilitating lesion, with conventional surgical treatment leading to facial deformity and morbodities, AOT shows indolent clinical behavior. The underlying molecular mechanisms associated with their biological behavior are unknown.

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Objective: To compare complications of ultrasound-guided percutaneous renal biopsy using two needle gauges (16-G and 18-G).

Methods: A total of 238 individuals with renal biopsy indication were included and randomly separated into two groups: ultrasound-guided percutaneous renal biopsy procedure carried out with a 16-G or 18-G needle. The adequacy of biopsy samples and post-procedure complications were compared between the two groups.

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Background: Prior epidemiological studies had examined the association between cell phone use and the development of tumors in the parotid glands. However, there is no consensus about the question of whether cell phone use is associated with increased risk of tumors in the parotid glands. We performed a meta-analysis to evaluate the existing literature about the mean question and to determine their statistical significance.

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Background: There is controversy on the effects of the non-ionizing radiation emitted by cell phones on cellular processes and the impact of such radiation exposure on health. The purpose of this study was to investigate whether cell phone use alters cytokine expression in the saliva produced by the parotid glands.

Methods: Cytokine expression profile was determined by enzyme linked immuno sorbent assay (ELISA) in the saliva produced by the parotid glands in healthy volunteers, and correlated with self-reported cell phone use and laterality.

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Higher tumor size correlates with poor prognosis and is an independent predictive survival factor in oral squamous cell carcinoma (OSCC) patients. However, the molecular events underlining OSCC tumor evolution are poorly understood. We aimed to investigate if large OSCC tumors show different cell cycle gene transcriptional signature compared to small tumors.

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Background: Burning mouth syndrome (BMS) is a chronic disorder defined as a burning sensation in the oral mucosa without evidence of pathological findings. Its pathophysiology is largely unknown, but psychiatric disorders and personality traits have been implicated.

Objective: This study investigated whether there is any association between salivary biomarkers and personality traits in BMS patients.

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Background: The association between cell phone use and the development of parotid tumors is controversial. Because there is unequivocal evidence that the microenvironment is important for tumor formation, we investigated in the parotid glands whether cell phone use alters the expression of gene products related to cellular stress.

Methods: We used the saliva produced by the parotid glands of 62 individuals to assess molecular alterations compatible with cellular stress, comparing the saliva from the gland exposed to cell phone radiation (ipsilateral) to the saliva from the opposite, unexposed parotid gland (contralateral) of each individual.

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Background: Prevalence of psychiatric disorders in burning mouth syndrome (BMS) is high, but their role in the pathogenesis of BMS remains unclear.

Objective: The authors aimed to assess the frequency of psychiatric disorders and the severity of psychopathology in BMS.

Methods: Thirty BMS patients and thirty-one controls underwent a psychiatric evaluation which included a structured interview (MINI-Plus) and five psychometric scales.

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Objective: The study aimed to evaluate the effects of salivary stimulation therapy on the salivary flow, quality of saliva, and symptoms in patients with burning mouth syndrome (BMS).

Background: BMS is a chronic disorder characterized by a burning sensation. Some reports have proposed a role for saliva in the pathogenesis of BMS.

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