Phα1β interaction with the Kv11.1 potassium channel in HEK293 cells transfected with the human ERG channel.

Background: This study examines the impact of Phα1β, a spider peptide derived from the venom of , on the Kv11.1 potassium channel in HEK293 cells transfected with the human ERG potassium channel. Phα1β inhibits high-voltage calcium channels and acts as an antagonist of the TRPA1 receptor, both of which play crucial roles in pain transduction pathways.

Peritoneal chemotherapy delivery systems for ovarian cancer treatment: systematic review of animal models.

Introduction: Intraperitoneal chemotherapy for ovarian cancer treatment has controversial benefits as most methodologies are associated with significant morbidity. We carried out a systematic review to compare tumor response, measured by tumor weight and volume, between intraperitoneal chemotherapy delivered via drug delivery systems (DDSs) and free intraperitoneal chemotherapy in animal models of ovarian cancer. The secondary aim was to assess the toxicity of DDS-delivered chemotherapy, based on changes in animal body weight.

Plasmatic Levels of Cytokines and Quality of Life among Elderly Individuals with Dizziness.

 Few studies have investigated the relationship between cytokines and dizziness in elderly individuals.  To assess the levels of inflammatory biomarkers and their relationship with quality of life (QoL) among elderly individuals with dizziness.  We conducted a cross-sectional study with 103 participants (90 women and 13 men) who were assessed through the Visual Analogue Scale (VAS) and the Dizziness Handicap Inventory (DHI).

Conventional endotracheal tubes versus polymer-coated tubes in ventilator-associated pneumonia development: A systematic review and meta-analysis.

Introduction: Endotracheal tubes (ETT) are used in patients who require ventilatory support. Colonization of ETTs by microorganisms is associated with developing ventilator-associated pneumonia (VAP). Thus, this meta-analysis aims to compare conventional endotracheal tubes with those made using materials designed to prevent colonization.

Use of Lung Volume Recruitment Technique in Patients With Chronic Respiratory Disease Among Brazilian Health Professionals.

Lung volume recruitment (LVR) is a stacked-breath assisted inflation technique in which consecutive insufflations are delivered, without exhaling in between, until the maximum tolerable inflation capacity is reached. Although LVR is recommended in some neuromuscular disease guidelines, there is little information detailing when and how allied health professionals (AHPs) prescribe LVR. This study is aimed at describing the use of LVR in practice across Brazil.

Single-nucleotide polymorphisms in genes associated with the vitamin D pathway related to clinical and therapeutic outcomes of American tegumentary leishmaniasis.

Background: The vitamin D pathway contributes to the microbicidal activity of macrophages against infection. In addition to induction of this pathway, interferon-gamma (IFNγ), interleukin (IL)-15, and IL32γ are part of a network of pro-inflammatory cytokines. The aim of this study was to evaluate single-nucleotide polymorphisms (SNPs) in the components of the vitamin D pathway and associated cytokine genes that could be related to resistance or susceptibility to American tegumentary leishmaniasis (ATL).

The influence of the forest corridors to the north of the Andes on the diversification of the bright-rumped Attila, (Passeriformes, Tyrannidae), during the climatic oscillations of the middle Pleistocene.

This study aims to enhance our understanding of the temporal and spatial processes scales governing the evolutionary diversification of Neotropical birds with Trans- and Cis-Andean populations of the species from South and Central America. Through a multilocus analysis of the mitochondrial (CytB and ND2) and nuclear genes (I7BF, I5BF, and G3PDH) of 41 samples representing six subspecies, we describe the existing molecular lineages of , and estimate their demographic dynamics. We used Ecological Niche Modeling (ENM) with six different algorithms to predict the potential distribution of in both present-day and past scenarios, examining the overlap climatic niche between Cis- and Trans-Andean lineages.

Exploring Untested Feasibilities: Critical Pedagogy's Approach to Addressing Abuse and Oppression in Medical Education.

Abuse and oppression in medical education persists. Particularly when transitioning to practice, students and residents face dissonance between what they perceive as the ideals of patient care and reality. They witness, and eventually take part in, joking about fellow students and patients, discriminating against minorities, and imposing unbearable workload to subordinates, to mention some practices that have been normalized as the reality of medical training, beyond any possibility of change.

Photobiomodulation Exerts Anti-Inflammatory and Antioxidant Effects Reducing the Development of Tumors Elicited by 4-NQO in the Mice Tongue.

Objective: Evaluate the influence of photobiomodulation in a model of oral carcinogenesis induced by 4-nitroquinoline-n-oxide (4-NQO).

Subjective: Ninety-six Swiss mice received topical application of 1% 4-NQO on tongue dorsum, for 20 weeks. The tongue was subjected to photobiomodulation with red (71.

PAV-05 Naphthoquinone Potently Inhibit Zika Virus Replication in Infected Cells.

Background: Zika (ZIKV) is a virus transmitted by mosquitoes that can cause Guillain- Barré syndrome and congenital malformations like microcephaly. Given its explosive resurgence and the resulting epidemics in 2016, the search for effective antiviral drugs has become absolutely necessary.

Methods: In this study, we examined the potential of naphthoquinone derivatives that have a sulfonamide or sulfonate group to inhibit ZIKV replication in primary cultured neurons and in Vero cells.

Osseointegration Process Improving via Functionalization of Titanium Dioxide Nanotubes: A Bibliometric Analysis and Systematic Review.

Introduction/objectives: Failures of osseointegrated implants pose a significant challenge in the medical field, often attributed to prolonged osseointegration periods and bacterial infections. Functionalization of Titanium Dioxide Nanotubes (TNTs) has emerged as a promising strategy to improve osseointegration and mitigate infections. This study aims to conduct a bibliometric analysis and systematic review to identify trends, gaps, and advancements in research on the functionalization of TNTs for osseointegration improvement.

Dyspnea and Heart Failure: The Role of the Diaphragm.

Background: Dyspnea and exertional intolerance are the most common clinical manifestations of Heart Failure (HF). One of the possible mechanisms of both symptoms in HF patients is weakness of the inspiratory muscles.

Aim: Because the diaphragm is the main inspiratory muscle, this review aimed to investigate the contribution of diaphragmatic function to the genesis of dyspnea or exercise intolerance in HF patients.

A Robust -Symmetric Aluminate Hydride for CO Hydroboration Catalysis: Mechanistic Insights and Countercation Influence on Catalytic Performance.

The present study details the synthesis and characterization of a robust, monomeric Al-H aluminate supported by a tridentate -phenolate ligand, isolated as [][Li(THF)] and [][N(Bu)] salts, which were then exploited as CO hydroboration catalysts. As initial reactivity studies, it was observed that the nucleophilic Al-H anion in [][C] (C = countercation [Li(THF)] or [N(Bu)]) reacts fast with CO, to afford the corresponding Al-formate complexes [][C], which were isolated and structurally characterized. Such anions were then exploited as potential CO reduction catalysts.

Global Delphi consensus on treatment goals for generalised pustular psoriasis.

Background: Generalised pustular psoriasis (GPP) is a chronic, systemic, neutrophilic inflammatory disease. A previous Delphi panel established areas of consensus on GPP, although patient perspectives were not included, and aspects of treatment goals remain unclear.

Objectives: To identify and achieve consensus on refined, specific treatment goals for GPP treatment via a Delphi panel with patient participation.

Co-inoculation with Bacillus thuringiensis RZ2MS9 and rhizobia improves the soybean development and modulates soil functional diversity.

Despite the beneficial effects of Plant Growth-Promoting Rhizobacteria (PGPR) on agriculture, understanding the consequences of introducing foreign microbes into soil taxonomic and functional diversity is necessary. This study evaluated the effects co-inoculation of soybean with Bacillus thuringiensis (Bt) RZ2MS9 and commercial rhizobia on the natural microbial community structure and functional potential. Our results indicated that soybean development was positively influenced by co-inoculation, plants exhibited greater height and a higher number of pods, and no reductions in productivity estimates.

COVID-19 on patients with immune-mediated rheumatic disease: a comparative study of disease activity, fatigue, and psychological distress over six months.

Objectives: To compare the impact of COVID-19 on the clinical status and psychological distress of patients with immune-mediated rheumatic disease (IMRD) caused by SARS-CoV-2 infection with that of noninfected IMRD controls during a 6-month follow-up period.

Methods: The ReumaCoV Brazil is a longitudinal study designed to follow IMRD patients for 6 months after COVID-19 (patients) compared with IMRD patients without COVID-19 (controls). Clinical data, disease activity measurements and current treatments regarding IMRD and COVID-19 outcomes were evaluated in all patients.

Semaglutide, type 2 diabetes, and the risk of nonarteritic anterior ischemic optic neuropathy.

In the last months, conflicting evidence on a possible association between the use of semaglutide and incident nonarteritic anterior ischemic optic neuropathy (NAION) has emerged. A recently published study, which evaluated all patients with type 2 diabetes in Denmark, has shown with robustness that once-weekly semaglutide doubles the five-year risk of NAION. In this comment, the new evidence is discussed, along with practical implications for type 2 diabetes patients.

Traumatic dental injuries in the first year of life and related risk factors in three regions of Brazil: a multicenter birth cohort study.

Background: Traumatic dental injuries (TDIs) in early childhood exert a negative impact on the quality of life of children and their families. However, there is no evidence from cohort studies on which to base prevention strategies at the beginning of life, when children are entirely dependent upon supervision. The aim of the present study was to estimate the incidence of TDI in the first year of life and explore risk factors in a birth cohort followed up in three major cities in different regions of Brazil.

Embryonal Rhabdomyosarcoma of the Abdominal Wall in a Pregnant Woman: Magnetic Resonance Imaging and Pathology Findings.

Cancer in pregnancy has an incidence of approximately 1:1000, and cases of sarcoma in pregnancy are rare, with only a few described in the literature. This case report describes a 32-year-old pregnant woman who noticed an approximately 3.0 cm nodule on her left flank in the second trimester of pregnancy.

Formation and stability of green and low-cost magnetoliposomes of the soy lecithin, stigmasterol, and β-sitosterol for hyperthermia treatments.

Magnetoliposomes containing magnetite, soy lecithin, stigmasterol, and beta-sitosterol of the mean size minor than 160 nm were obtained by a scalable and green process using autoclave and sonication without organic solvents. The formation, size of the liposome, linkage, and encapsulation of the magnetite were evaluated by Cryo-TEM. The stability of magnetoliposomes after storage for 6 months at 4 °C was improved by liposome size, the ability of soy lecithin to preserve the magnetite phase against oxidation, pH, polydispersity index, and zeta potential.

Evaluating cutinase from Fusarium oxysporum as a biocatalyst for the degradation of nine synthetic polymer.

Plastic poses a significant environmental impact due to its chemical resilience, leading to prolonged and degradation times and resulting in widespread adverse effects on global flora and fauna. Cutinases are essential enzymes in the biodegradation process of synthetic polymers like polyethylene terephthalate (PET), which recognized organisms can break down. Here, we used molecular dynamics and binding free energy calculations to explore the interaction of nine synthetic polymers, including PET, with Cutinase from Fusarium oxysporum (FoCut).

Factors Associated with HIV Risk Perception Among Cisgender Female Sex Workers in Brazil.

This study evaluated the association between HIV risk perception and sociodemographic and behavioral characteristics among cisgender female sex workers in the five regions of Brazil. A cross-sectional, multicenter study using respondent-driven sampling was used. Sex workers over 18 years of age and who reported commercial sex in the past four months were included.

Growth-rate distributions of gut microbiota time series.

Logarithmic growth-rates are fundamental observables for describing ecological systems and the characterization of their distributions with analytical techniques can greatly improve their comprehension. Here a neutral model based on a stochastic differential equation with demographic noise, which presents a closed form for these distributions, is used to describe the population dynamics of microbiota. Results show that this model can successfully reproduce the log-growth rate distribution of the considered abundance time-series.