Publications by authors named "Nunes R"

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).

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Alginate films were prepared from the brown seaweed Dictyota mertensii using glycerol as a plasticizer. The effects of extraction conditions-time, temperature, and NaCO concentration-on the optical, barrier, and mechanical properties of the films were investigated using a central composite design (CCD). ANOVA and F tests confirmed the models' statistical significance at p ≤ 0.

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Background & Aims: Cardiometabolic traits are complex interrelated traits that result from a combination of genetic and lifestyle factors. This study aimed to assess the interaction between genetic variants and dietary macronutrient intake on cardiometabolic traits [body mass index, waist circumference, total cholesterol, high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol, triacylglycerol, systolic blood pressure, diastolic blood pressure, fasting serum glucose, fasting serum insulin, and glycated haemoglobin].

Methods: This cross-sectional study consisted of 468 urban young adults aged 20 ± 1 years, and it was conducted as part of the Study of Obesity, Nutrition, Genes and Social factors (SONGS) project, a sub-study of the Young Lives study.

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Introduction: Cancer patients in palliative care frequently experience psychological distress, encompassing cognitive, behavioral, and emotional dimensions. This distress can significantly affect their capacity to accept the inevitability of death. Commonly, such distress manifests as sadness, depression, anxiety, and fear, which may culminate in an existential crisis.

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  • The study examines how baryon acoustic oscillations data from the Dark Energy Spectroscopic Instrument affects interacting dark energy (IDE) models, which suggest an energy transfer between dark matter and dark energy.
  • By integrating data from Planck-2018 and the Dark Energy Spectroscopic Instrument, researchers find a noticeable preference for interactions, leading to a present-day expansion rate that alleviates existing tensions with other measurements.
  • Although the IDE model offers a compelling explanation for various observational data and presents compatible expansion rates, it does struggle with predictions related to the overall matter density and large-scale structures in the universe.
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Background: Chalcones have been described in the literature as promising antineoplastic compounds.

Objectives: Therefore, the objective of this study was to analyze the cytotoxic effect of 23 synthetic chalcones on human acute leukemia (AL) cell lines (Jurkat and K562).

Methods: Cytotoxicity assessment was performed using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) method.

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This work reports the obtention of Si,N,S-CQDs from sugar cane bagasse and their inhibitory action on the mild steel corrosion in 1 mol L HCl solution. The CQDs were successfully obtained and characterized by X-ray photoelectron spectroscopy, Fourier-transform infrared spectroscopy, Dynamic light scattering, Raman, and UV-vis techniques, also showing endogenous self-doping. The anti-corrosive activity of CQDs was investigated by gravimetric tests, potentiodynamic polarization curves, electrochemical impedance measurements, atomic force microscopy, and scanning electron microscopy.

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Objective: To construct a matrix of interprofessional competencies produced in Multiprofessional Health Residencies in the interior of Rio Grande do Norte.

Method: Qualitative study, with a deductive method for theorization and construction of the competency matrix. It was organized into three phases: theoretical, field and analytical phase.

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Introduction: Uncontrolled symptoms are widely recognized as one of the main challenges in oncology palliative care patients. The central aim of palliative care is to improve the patient's quality of life. In recent years, there has been a growing use of patient-reported outcome measures in palliative care, particularly to evaluate symptoms, quality of care, and well-being.

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Dicranocentrus Schött, 1893 is one of the largest genera of Orchesellidae, with a Pantropical distribution. Here we describe and illustrate the first species of the genus recorded from the Brazilian Pampa domain, in the Southern Region of the country. Dicranocentrus pampaensis sp.

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Infiltration of peripheral immune cells into the brain following neonatal hypoxia-ischemia (HI) contributes to increased neuroinflammation and brain injury. However, the specific roles of different immune cell types in neonatal brain injury remain poorly understood. Although existing evidence suggests a potential role for sexual dimorphism in HI outcomes, this aspect has been insufficiently investigated.

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Alterations in white matter (WM) microstructure are commonly found in migraine patients. Here, we employ a longitudinal study of episodic migraine without aura using diffusion magnetic resonance imaging (dMRI) to investigate whether such WM microstructure alterations vary through the different phases of the pain cycle. Fourteen patients with episodic migraine without aura related with menstruation were scanned through four phases of their (spontaneous) migraine cycle (interictal, preictal, ictal, and postictal).

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  • Crohn's Disease and Ulcerative Colitis are serious gastrointestinal disorders that currently have no cure, emphasizing the need for better research models to test new therapies.
  • A new three-dimensional (3D) in vitro model mimics the IBD environment by incorporating multiple layers of tissue and immune responses, which includes human intestinal cells and macrophages.
  • This innovative model allows for inducing inflammation similar to that seen in IBD, improving drug testing accuracy and potentially reducing reliance on animal studies while aiding in the understanding of disease mechanisms.
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Some philosophical and metaethical theories have tried to provide a fundamental background for bioethics but miss the fundamental question about what medicine is, its nature and its end. We argue that the philosophy of medicine, through the development that Edmund Pellegrino and David Thomasma gave to this field of study, allied with Aristotle's practical and teleological ethics, can provide an ontological background for bioethics beyond the tradition of principles and deontology, with particular emphasis on the uniqueness of the doctor-patient encounter. Some difficulties and criticisms of this ontological model are also examined.

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Pyrazolines are compounds that have been studied for their strong biological potential and structure diversity. Several studies demonstrated their biological effectiveness, highlighting their anti-inflammatory potential. This study aimed to evaluate the physicochemical profile, the safety, and the anti-inflammatory effects of four pyrazolines (PH0, PH3, PH4, and PH7).

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The current cholesterol guidelines recommend maintaining low levels of low-density lipoprotein cholesterol (LDL-C) in patients with coronary artery disease (CAD). However, recent studies have suggested that both very low and very high LDL-C levels may be associated with increased mortality in the general population. We utilized data from TriNetX, a global health research network, to investigate the association between LDL-C levels and all-cause mortality in patients with CAD.

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  • Walking is important for the health of knee articular cartilage, but traditional MRI methods don't effectively detect early changes in cartilage composition due to exercise.
  • This study involved seven healthy volunteers, who had MRI scans of their knees before and after a 9-minute treadmill walk, to assess whether a quantitative T2 mapping technique could identify changes in cartilage related to water content.
  • The results showed that walking significantly increased T2 values in the knee cartilage, indicating changes in hydration that could be used for early detection of cartilage issues, particularly useful for at-risk patients.
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The prevalence and mortality of chronic liver disease has risen significantly. In end-stage liver disease (ESLD), the survival of patients is approximately 2 years. Despite the poor prognosis and high symptom burden, integration of palliative care in ESLD is reduced, and the majority of patients continue to die in inpatient care.

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  • Handschin is the only member of its genus and tribe, characterized by unique dorsal chaetotaxy features, including fewer macrochaetae and a mix of fusiform scales and microchaetae.
  • Despite previous studies, there is still limited understanding of chaetotaxy, particularly regarding tergal sensilla patterns and dorsal macrochaetae.
  • A new Brazilian species is introduced, highlighting distinct differences in dorsal chaetotaxy compared to previously described species, but the study finds no strong evidence to classify Mastigocerini within Heteromurinae.
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Background: International cohort studies have consistently demonstrated an unfavorable prognosis in female patients after the first acute myocardial infarction (AMI) over the past decades. However, national data on this topic are limited.

Objectives: This study aims to compare national cohorts of men and women hospitalized due to the first acute myocardial infarction, examining long-term outcomes.

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Objective: Determining the etiology of hyperprolactinemia is fundamental for selecting the most appropriate treatment strategy. The aim of this study was to evaluate the usefulness and accuracy of prolactin levels in predicting the etiology of nonphysiological hyperprolactinemia.

Subjects And Methods: In this retrospective study, we reviewed medical records of patients with nonphysiological hyperprolactinemia seen at two neuroendocrine reference centers located in Recife, Brazil, from January 2000 to December 2019.

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Objective: Sulfonylureas have been used to improve performance in strength sports. However, this hypothetical effect has not been proven. We examined the ergogenic acute effect of gliclazide on resistance training performance and muscle recovery.

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Aim: To analyze the accuracy and costs of bedside methods for confirming the position of a nasoenteral feeding tube newly inserted blindly by nurses.

Design: Diagnostic accuracy study of three clinical methods (ultrasound, epigastric auscultation, and pH measurement) compared to radiography. The direct costs of each method used to confirm the positioning of the nasoenteral tube were also measured.

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The Zika disease caused by the Zika virus was declared a Public Health Emergency by the World Health Union (WHO), with microcephaly as the most critical consequence. Aiming to reduce the spread of the virus, biopharmaceutical organizations invest in vaccine research and production, based on multiple platforms. A crescent vaccine production approach is based on virus-like particles (VLP), for not having genetic material in its composition, hypoallergenic and non-mutant character.

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