Publications by authors named "Thiago Guedes Pinto"

Article Synopsis
  • The systematic review analyzed multiple studies to determine the effectiveness of the micronucleus assay for monitoring genetic damage in workers exposed to anesthetic gases.
  • A total of 18 articles were included after thorough screening, with quality assessments rating 12 as strong, 3 as moderate, and 3 as weak.
  • Overall, the findings suggest that exposure to anesthetic agents can lead to genetic damage, and the micronucleus assay is a reliable biomarker for detecting this damage in affected professionals.
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The present study aims to provide a systematic review of studies on the essential and nonessential metal exposure at occupational level, genotoxicity, and polymorphisms and to answer the following questions: Are genetic polymorphisms involved in metal-induced genotoxicity? In this study, 14 publications were carefully analyzed in this setting. Our results pointed out an association between polymorphism and genotoxicity in individuals exposed to metals, because 13 studies (out of 14) revealed positive relations between genotoxicity and polymorphisms in xenobiotics metabolizing and DNA repair genes. Regarding the quality of these findings, they can be considered reliable, as the vast majority of the studies (12 out of 14) were categorized as strong or moderate in the quality assessment.

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Article Synopsis
  • Professional painters work with lots of chemicals that can be dangerous, making them important to study for health risks.
  • The International Agency for Research on Cancer has said that being a commercial painter has a high chance of leading to cancer.
  • A review of 26 studies found that car painters are likely at risk of gene damage from these chemicals, and most of the studies showed this risk in different tests.
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The waterpipe works by placing tobacco in a bowl with holes at the bottom, which is connected to a tube leading to a water-filled container. Upon heating the tobacco product with hot charcoal placed atop it, the emanating smoke is inhaled by the user a hose linked to the water receptacle. The aim of this literature review is to evaluate whether the use of waterpipes can indeed induce genotoxicity in mammalian cells .

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Formaldehyde is a chemical compound capable of preserving cells and tissue morphology, being extensively used worldwide in industrial and medical processes. However, due to the many biological effects that take place after an individual is chronically exposed to formaldehyde, this compound poses a greater cancer risk for workers under its occupational exposure, even at lower concentrations. Thus, the present systematic review aimed to understand whether there may be a positive relation between polymorphism (in terms of individual susceptibility) and genotoxicity in individuals occupationally exposed to formaldehyde.

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Article Synopsis
  • * The review analyzed data from 34 studies published until December 2023, using standardized mean differences and confidence intervals to assess the results.
  • * Findings suggest that the MA is a reliable biomarker for detecting DNA damage in gingiva, making it a promising alternative to buccal mucosa for cytogenetic evaluations.
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Article Synopsis
  • Steroids, particularly anabolic-androgenic steroids (AAS), are hormones that can be both beneficial for medical conditions and abused for muscle growth, leading to potential DNA damage in tissues.
  • This study analyzed published research on the genotoxic effects of AAS, evaluating 15 articles for evidence of DNA damage, with 14 classified as Strong or Moderate reliability.
  • The findings indicated that AAS exposure is linked to significant DNA damage, suggesting that genotoxicity could serve as a useful biomarker for monitoring AAS use in both animals and humans.
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Objective: The aim of this study was to analyze possible alterations (morphological and inflammatory) in the ocular cells of fetuses from mothers with insulin resistance exposed to saturated fatty acids through the period of pregnancy.

Methods: Wistar female rats were induced to develop insulin resistance before pregnancy. Fetuses' skulls were collected on the 20th day of intrauterine life.

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Benzene is used worldwide as a major raw material in a number of industrial processes and also a potent airborne pollutant emitted from traffic exhaust fume. The present systematic review aimed to identify potential associations between genetic polymorphisms and occupational benzene-induced genotoxicity. For this purpose, a total of 22 selected studies were carefully analysed.

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Article Synopsis
  • - Cannabis is widely used recreationally and is now being studied for its effects on health; this study specifically looks at the impact of cannabis nano emulsions containing THC and CBD on the liver of rats.
  • - Forty male Wistar rats were divided into five groups and treated with different doses and combinations of cannabis nano emulsions over 21 days, with results showing significant liver damage at higher doses (5 mg/kg).
  • - The study found that high doses of cannabis nano emulsions led to harmful changes in liver cells, including increased signs of cell damage and abnormalities, suggesting that dosage is crucial when considering the safety of cannabis use.
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Introduction: This systematic review aimed to help further elucidate the following question: are endodontics sealers able to induce DNA damage in vitro or in vivo?

Methods: This study was conducted following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement 2020 criteria. A total of 23 studies were carefully selected by the authors.

Results: Regarding the general characteristics, most studies evaluated, on average, 3-5 types of sealers (resin epoxy, salicylate, salicylate + MTA, zinc oxide-eugenol, bioceramic products, calcium hydroxide), performing comparisons between them.

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This study aimed to evaluate all studies which used the micronucleus assay using oral cells in the attempt to understand whether such technique is efficient in evaluating genotoxicity in gas station attendants. Full manuscripts from 16 studies were carefully selected by the authors. Our results demonstrate that continuous exposure to derivatives of petroleum may lead to genotoxic effects since all studies demonstrated positive findings (16 out of 16) and 11 of them had a strong or moderate final rating.

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The aim of this systematic review was to answer the question of whether crack cocaine can induce cellular and molecular alterations and whether such alterations are somehow related to clinical lesions in the oral mucosa. The searches were undertaken in three electronic databases and conducted based on the PRISMA 2020 statement. Eleven studies published between 1994 and 2020 were analyzed.

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Background And Objectives: In order to detect genetic damage, different methods have been developed, such as micronuclei and comet assay. The comet assay presents some advantages when compared to the other aforementioned methods, including wide versatility, as any eukaryotic cell can be evaluated at an individual cellular level. In this context, the aim of this systematic review was designed to help further elucidate the following question: is the comet assay a suitable biomarker of oral carcinogenesis?

Material And Methods: The present systematic review was performed in accordance with the Preferred Reporting Items for Systematic Review and Meta-Analyses (PRISMA) guidelines.

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In a world with a rising use of pesticides, these chemicals, although designed to effectively control pests, pose potential threats to the environment and non-target organisms, including humans. Thus, this systematic review aims to investigate a possible association between genetic polymorphisms and susceptibility and genotoxicity in individuals occupationally exposed to pesticides. This review was conducted following the 2020 Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) criteria.

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Article Synopsis
  • Placental Glutathione S-Transferase (GST-P) is a potential biomarker for detecting preneoplastic and malignant lesions in various cancers, including oral cancer.
  • A review of 16 studies involving hamsters, rats, and human cells showed consistent positive results for GST-P expression in relation to oral carcinogenesis.
  • The conclusion drawn from the review indicates that GST-P is a reliable marker for identifying oral cancer progression.
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Background And Objectives: Nowadays, hair dye products are widely used for aesthetic purposes, in which it generates chemical exposure to customers and, mainly, hairdressers. The aim of this systematic review was designed to elucidate the following question: are hair dye products able to induce DNA damage in hairdressers?

Methods: Studies were included in our analyses if they met the following criteria: (1) studies measuring genetic damage in vivo; (2) studies published in English; (3) studies that provided data clearly presented in scientific standards.

Results: Full manuscripts from 13 studies were carefully selected in this setting.

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Background/aim: COVID-19 may lead to progressive respiratory failure as a consequence of alveolar damage, resulting in death. The aim of this study was to evaluate cytogenetic damage in oral cells of COVID-19 patients by micronucleus assay.

Patients And Methods: A total of 11 COVID-19 patients aged 40.

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