Publications by authors named "Peixoto C"

Perioperative anesthetic, surgical and critical careinterventions can affect brain physiology and overall brain health. The clinical utility of electroencephalogram (EEG) monitoring in anesthesia and intensive care settings is multifaceted, offering critical insights into the level of consciousness and depth of anesthesia, facilitating the titration of anesthetic doses, and enabling the detection of ischemic events and epileptic activity. Additionally, EEG monitoring can aid in predicting perioperative neurocognitive disorders, assessing the impact of systemic insults on cerebral function, and informing neuroprognostication.

View Article and Find Full Text PDF

Adeno-associated viruses (AAV) are becoming increasingly popular as a powerful tool for gene delivery therapy applications. Although processes to produce AAV are established, future demand for this type of viral vector requires further development of manufacturing processes to make them more robust, scalable, and flexible to accommodate the rise of engineered capsids. This study focuses on designing and evaluating a two-step chromatography process for capturing and polishing AAV8 using monolith chromatography media.

View Article and Find Full Text PDF

Our study focused on a mouse model of obesity induced by a high-fat diet (HFD). We administered Semaglutide intraperitoneally (Ozempic ®-0.05 mg/Kg-translational dose) every seven days for six weeks.

View Article and Find Full Text PDF

Background: Appropriate use of medication is a key indicator of the quality of care provided in long-term care (LTC). The objective of this study was to determine whether resident-facility language concordance/discordance is associated with the odds of potentially inappropriate prescribing of antipsychotics (PIP-AP) in LTC.

Methods: We conducted a population-based, retrospective cohort study of LTC residents in Ontario, Canada from 2010 to 2019.

View Article and Find Full Text PDF

Aplastic anaemia in infants and young children presents unique challenges due to high prevalence of inherited bone marrow failure syndromes (IBMFS) in this age group. The objective of this study is assessing clinical characteristics and outcomes of haematopoietic cell transplantation in children ≤5 years with bone marrow failure syndromes. We analysied 106 patients (66% males), median age 4.

View Article and Find Full Text PDF

Background: Research comparing artificial intelligence and machine learning (AI/ML) methods with classical statistical methods applied to large population health databases is limited.

Objectives: This retrospective cohort study aimed to compare the predictive performance of AI/ML algorithms against conventional multivariate logistic regression models using linked health administrative data.

Methods: Using Ontario's population health databases, we created a cohort of residents of the city of Ottawa, Ontario, who underwent a PCR test for COVID-19 between March 10, 2020, and May 13, 2021.

View Article and Find Full Text PDF

Multiple Sclerosis (MS) is a debilitating disease that severely affects the central nervous system (CNS). Apart from neurological symptoms, it is also characterized by neuropsychiatric comorbidities, such as anxiety and depression. Phosphodiesterase-5 inhibitors (PDE5Is) such as Sildenafil and Tadalafil have been shown to possess antidepressant-like effects, but the mechanisms underpinning such effects are not fully characterized.

View Article and Find Full Text PDF
Article Synopsis
  • Clinicians and patients often need to decide whether to continue or stop taking statins, and this study investigates the effects of such decisions on health outcomes like mortality and quality of life.* -
  • Researchers conducted a systematic review of various studies on statin use and found that discontinuing statins might be linked to a higher risk of overall and cardiovascular mortality as well as cardiovascular events, especially in non-randomized studies.* -
  • The only randomized controlled trial included had limited findings, showing no significant difference in short-term mortality for those who stopped statins, while results for older adults (≥75 years) were consistent with the overall trends observed.*
View Article and Find Full Text PDF

Newly conducted research suggests that metabolic disorders, like diabetes and obesity, play a significant role as risk factors for psychiatric disorders. This connection presents a potential avenue for creating novel antidepressant medications by repurposing drugs originally developed to address antidiabetic conditions. Earlier investigations have shown that GLP-1 (Glucagon-like Peptide-1) analogs exhibit neuroprotective qualities in various models of neurological diseases, encompassing conditions such as Alzheimer's disease, Parkinson's disease, and stroke.

View Article and Find Full Text PDF
Article Synopsis
  • Language-concordant health care, where patients receive care in their preferred language, is crucial for accessibility and quality, yet linguistic minorities experience greater travel challenges in accessing such care compared to others.* -
  • The study evaluated patient satisfaction with an online map tool designed to help users find family physicians who speak their language in Ottawa and surrounding areas, using an online survey for data collection.* -
  • Out of 93 respondents, 61% expressed satisfaction with the tool; feedback highlighted the need for features like identifying physicians accepting new patients, improved user interface, and updated information, while some also noted difficulties in finding a family physician.*
View Article and Find Full Text PDF

The lack of knowledge regarding the extent of microbial contamination in Portuguese fitness centers (FC) puts attendees and athletes at risk for bioaerosol exposure. This study intends to characterize microbial contamination in Portuguese FC by passive sampling methods: electrostatic dust collectors (EDC) (N = 39), settled dust (N = 8), vacuum filters (N = 8), and used cleaning mops (N = 12). The obtained extracts were plated in selective culture media for fungi and bacteria.

View Article and Find Full Text PDF

Background:  Population aging and the consequences of social distancing after the COVID-19 pandemic make it relevant to investigate the feasibility of remote interventions and their potential effects on averting functional decline.

Objective:  (1) To investigate the feasibility, safety, and adherence of a remote protocol involving physical and cognitive exercises for older women with normal cognition; (2) to examine its effects on cognitive and well-being variables.

Methods:  Twenty-nine women (age ≥ 60 years old) were randomized into experimental group (EG;  = 15) and control group (CG;  = 14).

View Article and Find Full Text PDF

(1) Background: Cervical intraepithelial neoplasia (CIN) is a precancerous condition linked to human papillomavirus (HPV) infection, often necessitating surgical interventions carrying the risk of subsequent preterm births. This study explores the potential of imiquimod (IMQ), as a non-invasive alternative treatment. The focus is on understanding IMQ impact on immune checkpoint molecules, particularly PD-1, PD-L1, and sHLA-G, which play pivotal roles in shaping immune responses and cancer progression.

View Article and Find Full Text PDF

The salt-inducible kinases (SIKs) SIK1, SIK2, and SIK3 belong to the adenosine monophosphate-activated protein kinase (AMPK) family of serine/threonine kinases. SIK inhibition represents a new therapeutic approach modulating pro-inflammatory and immunoregulatory pathways that holds potential for the treatment of inflammatory diseases. Here, we describe the identification of GLPG3970 (), a first-in-class dual SIK2/SIK3 inhibitor with selectivity against SIK1 (IC of 282.

View Article and Find Full Text PDF
Article Synopsis
  • Prebiotics like Fructooligosaccharides (FOS) and Galactooligosaccharides (GOS) were studied for their effects on gut health and mood by using mice on a high-fat diet (HFD).
  • The study involved groups of mice including a control group and those on HFD, with some receiving prebiotics and others medication, allowing researchers to compare behaviors related to depression and anxiety.
  • Results showed that prebiotic treatment improved mood and reduced neuroinflammation, indicating that gut microbiota plays a crucial role in mental health, particularly in cases of diet-induced obesity.
View Article and Find Full Text PDF

Introduction: An estimated 20% of residents of Renfrew County, a rural and underserved community in Ontario, do not have a family physician or alternative primary care provider. Integrated virtual care (IVC) aims to address this crisis by enrolling individuals who are not currently attached to a primary care provider, to a named family physician who works predominantly remotely. The physician is embedded within an existing, local family health team.

View Article and Find Full Text PDF

We show, for the first time, radio measurements of the depth of shower maximum (X_{max}) of air showers induced by cosmic rays that are compared to measurements of the established fluorescence method at the same location. Using measurements at the Pierre Auger Observatory we show full compatibility between our radio and the previously published fluorescence dataset, and between a subset of air showers observed simultaneously with both radio and fluorescence techniques, a measurement setup unique to the Pierre Auger Observatory. Furthermore, we show radio X_{max} resolution as a function of energy and demonstrate the ability to make competitive high-resolution X_{max} measurements with even a sparse radio array.

View Article and Find Full Text PDF

Salt-inducible kinases (SIKs) SIK1, SIK2, and SIK3 are serine/threonine kinases and form a subfamily of the protein kinase AMP-activated protein kinase (AMPK) family. Inhibition of SIKs in stimulated innate immune cells and mouse models has been associated with a dual mechanism of action consisting of a reduction of pro-inflammatory cytokines and an increase of immunoregulatory cytokine production, suggesting a therapeutic potential for inflammatory diseases. Following a high-throughput screening campaign, subsequent hit to lead optimization through synthesis, structure-activity relationship, kinome selectivity, and pharmacokinetic investigations led to the discovery of clinical candidate GLPG3312 (compound ), a potent and selective pan-SIK inhibitor (IC: 2.

View Article and Find Full Text PDF

Poor environmental conditions combined with continuous unhealthy and unsafe diets may substantially increase the risk of a vicious cycle of enteric infections (EED-environmental enteric dysfunction) and malnutrition (DBM-double burden of malnutrition) in children. Gut melatonin, mainly produced by the intestinal microbiota, can modulate the composition, variety, and dynamics of the microbiota itself and may affect and be affected by intestinal microbiota alterations due to DBM and EED.

View Article and Find Full Text PDF

Introduction: Exercising on regular basis provides countless health benefits. To ensure the health, well-being and performance of athletes, optimal indoor air quality, regular maintenance and ventilation in sport facilities are essential.

Methods: This study assessed the levels of particulate, down to the ultrafine range (PM, PM, and particle number concentration in size range of 20-1,000 nm, i.

View Article and Find Full Text PDF

To critically analyze the evidence regarding changes in verbal and performance intelligence quotient (IQ) in patients with schizophrenia. An English-language-only search was conducted in the PubMed, Cochrane Library, and LILACS databases for articles with study objectives that included Wechsler Adult Intelligence Scale (WAIS) assessment of cognitive functions in patients with schizophrenia. Descriptors were defined based on Medical Subject Headings, where associations of psychotic disorders related to the schizophrenia spectrum were suggested, as well as the "Wechsler Scales" descriptor.

View Article and Find Full Text PDF

The present study aims to investigate if Cimicifuga racemosa (L.) Nutt extract (CIMI) reduces deleterious effects of dexamethasone (DEXA) in ovaries cultured in vitro. Mouse ovaries were collected and cultured in DMEM+ only or supplemented with 5 ng/mL of CIMI, or 4 ng/mL DEXA, or both CIMI and DEXA.

View Article and Find Full Text PDF

Studies have shown that gut dysbiosis is associated with the steatotic liver disease associated with metabolic dysfunction (MALSD) and its severity. This study evaluated the effects of two commercially available prebiotics fructooligosaccharides (FOS) and galactooligosaccharides(GOS) on hepatic adipogenesis, inflammation, and gut microbiota in high-fat diet-induced MALSD. The results indicated that FOS and GOS effectively reduced insulin resistance, hyperglycaemia, triglyceridemia, cholesterolaemia, and IL-1β serum levels.

View Article and Find Full Text PDF

This study investigated the effects of cyclic adenosine monophosphate modulating during cumulus-oocyte complexes (COCs) pre-maturation and the role of melatonin on in vitro maturation (IVM) of bovine COCs. In experiment one, COCs were pre-matured for 8 h in control medium or with 3-isobutyl-1-methylxanthine (IBMX) and forskolin, IBMX and C-type natriuretic peptide, c-type natriuretic peptide and forskolin or IBMX, forskolin and c-type natriuretic peptide. Then, meiotic progression was evaluated.

View Article and Find Full Text PDF

Yerba mate, a popular plant consumed mainly as an infusion, possesses nutritional and medicinal properties attributed to its secondary metabolites. This study aimed to develop strategies to elucidate the phenolic composition of yerba mate samples from Brazil, Argentina, Uruguay, and Paraguay. Optimization of ultrasonic-assisted extraction (UAE) was performed, and the extracted compounds were characterized using ultra-high-pressure liquid chromatography coupled with quadrupole/time-of-flight mass spectrometry (UHPLC-QTOF-MS), molecular fluorescence and high-pressure liquid chromatography with diode-array detection (HPLC-DAD).

View Article and Find Full Text PDF