Publications by authors named "Larissa Mattos"

Article Synopsis
  • * This study tested three copper and iron complexes combined with the ligand BMPA for their ability to protect yeast cells from G-iS caused by methylglyoxal (MG).
  • * The complexes enhanced yeast tolerance by reducing oxidation and lipid peroxidation, increasing antioxidant enzyme activity, and were particularly effective against MG-induced stress, suggesting potential for future therapeutic use.
View Article and Find Full Text PDF

Despite the prevalence of substance use during pregnancy, studies focusing exclusively on Neonatal Intensive Care Units (NICU) admissions remain limited. This study investigates the impact of maternal use of tobacco, alcohol, and/or crack, on neonatal outcomes among infants admitted to three Brazilian NICUs. Additionally, the investigation explores the impact of substance use on DNA damage in newborns.

View Article and Find Full Text PDF

Reactive oxygen species (ROS) are closely related to oxidative stress, aging, and the onset of human diseases. To mitigate ROS-induced damages, extensive research has focused on examining the antioxidative attributes of various synthetic/natural substances. Coordination compounds serving as synthetic antioxidants have emerged as a promising approach to attenuate ROS toxicity.

View Article and Find Full Text PDF

Objective: To reflect on the mental health of nurses who are women and mothers in the context of the COVID-19 pandemic.

Method: Theoretical-reflective study based on scientific literature, supported by national and international scientific literature, in addition to a critical analysis by the authors.

Results: Reflections on the subject go beyond the impact of motherhood on these women's lives, as it portrays a gender issue and the role of women within society.

View Article and Find Full Text PDF

The interaction between Cu, Fe and Mn complexes, derived from the ligands 1-[bis(pyridine-2-ylmethyl)amino]-3-chloropropan-2-ol (hpclnol) and bis(pyridine-2-ylmethyl)amine (bpma), and the free radical 2,2-diphenyl-1-(2,4,6-trinitrophenyl)hydrazyl (DPPH) and reactive oxygen species (ROS), was investigated by colorimetric and EPR (Electron Paramagnetic Resonance) techniques. A comparison between these results and those reported to [Mn(salen)Cl] or EUK-8 was also addressed. EPR studies allowed us the identification of intermediates species such as superoxide‑copper(I) and superoxide‑copper(II), a mixed-valence FeFe species and a 16-line feature attributed to Mn-oxo-Mn species.

View Article and Find Full Text PDF

Objectives: The HIV-1 genetic diversity and the presence of transmitted drug resistance mutations (TDRMs) against integrase strand transfer inhibitors (INSTIs) were assessed sequencing samples of antiretroviral (ARV)-naive HIV-1-infected individuals from South Brazil.

Methods: Viral RNA from 42 ART-naive individuals was submitted to complete HIV-1 integrase gene amplification by RT-PCR and sequencing.

Results: Viral strains carrying TDRMs against INSTIs were not detected in the present study.

View Article and Find Full Text PDF

Objectives: to analyze the level of nurses' engagement in political advocacy by performing cluster analysis.

Methods: observational study, with a quantitative approach. A total of 184 nurses working in primary, secondary, and tertiary care in a city in the south of Brazil completed the Policy Advocacy Engagement Scale.

View Article and Find Full Text PDF

The overproduction of reactive oxygen species (ROS) induces oxidative stress, a well-known process associated with aging and several human pathologies, such as cancer and neurodegenerative diseases. A large number of synthetic compounds have been described as antioxidant enzyme mimics, capable of eliminating ROS and/or reducing oxidative damage. In this study, we investigated the antioxidant activity of a water-soluble 1,10-phenantroline-octanediaoate Mn-complex on cells under oxidative stress, and assessed its capacity to attenuate alpha-synuclein (aSyn) toxicity and aggregation, a process associated with increased oxidative stress.

View Article and Find Full Text PDF

Objective: To analyze the experiences that generate pleasure and suffering in the work of nurses in an oncopediatric inpatient unit.

Methods: Qualitative, exploratory, descriptive study. Data collection took place from March to May 2018, through interviews with eight nurses in an oncopediatric inpatient unit.

View Article and Find Full Text PDF

Brazil is, at the time of writing, the global epicenter of COVID-19, but information on risk factors for hospitalization and mortality in the country is still limited. Demographic and clinical data of COVID-19 patients until June 11th, 2020 were retrieved from the State Health Secretariat of Espírito Santo, Brazil. Potential risk factors for COVID-19 hospitalization and death were analyzed by univariate and multivariable logistic regression models.

View Article and Find Full Text PDF

Objective: To identify aspects that hinder or facilitate the work of nurses in primary health care when disclosing difficult news.

Method: Qualitative, descriptive and exploratory study addressing 15 nurses from ten primary health care units located in the south of Brazil. Data were collected from February to April 2017, using a semi-structured interview.

View Article and Find Full Text PDF

Elastase B (lasB) is a multifunctional metalloenzyme secreted by the gram-negative pathogen , and this enzyme orchestrates several physiopathological events during bacteria-host interplays. LasB is considered to be a potential target for the development of an innovative chemotherapeutic approach, especially against multidrug-resistant strains. Recently, our group showed that 1,10-phenanthroline-5,6-dione (phendione), [Ag(phendione)]ClO (Ag-phendione) and [Cu(phendione)](ClO).

View Article and Find Full Text PDF

The evaluation of formaldehyde (FD) exposure in beauty salons, due to the use of hair straightening products, and its relation with genotoxicity biomarkers was performed in this study. Regardless of official recommendations, the inappropriate use of homemade hair creams has became a popular practice in Brazil, and high formaldehyde content in the "progressive straightening" creams can contain mutagens that could increase the incidence of neoplasia in those people who use them. Damage to DNA was assessed by conducting a micronuclei test (MNT) on buccal cells and the comet assay on heparinized venous blood samples.

View Article and Find Full Text PDF