Publications by authors named "de Souza RR"

Background: Adolescent mental health is vital for public health, yet many interventions fail to recognise adolescents as proactive community contributors. This paper discusses the co-design and acceptability testing of a chat-story intervention to enhance Brazilian adolescents' participation in the promotion of mental health in their peer communities. We specifically highlight the iterative process of co-creating this intervention with community stakeholders.

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Vagus nerve stimulation (VNS) is a therapeutic intervention previously shown to enhance fear extinction in rats. VNS is approved for use in humans for the treatment of epilepsy, depression, and stroke, and it is currently under investigation as an adjuvant to exposure therapy in the treatment of PTSD. However, the mechanisms by which VNS enhances extinction of conditioned fear remain unresolved.

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Objectives: This study investigated how Brazilian young people perceive their role in promoting and supporting their peer community's mental health and well-being, and the conditions and contexts influencing their engagement.

Design: Co-produced qualitative study using in-depth interviews and focus groups with adolescents. The sessions were audio-recorded, transcribed and anonymised.

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This study explores the combined delivery of doxorubicin and quercetin using a gelatin-oxidized alginate-based hydrogel as a promising strategy for localized breast cancer therapy. Our approach involves the incorporation of doxorubicin within the hydrogel matrix and loading quercetin into chitosan-coated zein nanoparticles. The hydrogel exhibited self-healing properties attributed to Schiff base cross-linking and demonstrated injectability.

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Biosurfactants are amphiphilic biomolecules with promising tensoative and emulsifying properties that find application in the most varied industrial sectors: environment, food, agriculture, petroleum, cosmetics, and hygiene. In the current work, a 2 full-factorial design was performed to evaluate the effect and interactions of pineapple peel and corncob as substrates for biosurfactant production by Bacillus subtilis LMA-ICF-PC 001. In a previous stage, an alkaline pretreatment was applied to corncob samples to extract the xylose-rich hydrolysate.

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Background: The coronavirus 2019 (COVID-19) pandemic impacted cancer health care in several countries, with delays in the detection and treatment of breast and cervical cancer. The objective of this study is to analyze and compare the screening, diagnosis and treatment of breast and cervical cancer in the pre-COVID period and during the COVID-19 period.

Methods: Cross-sectional study with secondary data collected from the Mortality Information System (SIM), Hospital Information System (SIH), Ambulatory Information System (SIA) and the Oncology Panel (PO) of breast cancer notifications with ICD C50.

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Introduction: Lynch syndrome (LS) is an inherited cancer predisposition syndrome characterized by a high risk of colorectal and extracolonic tumors. Germline pathogenic variants (GPV) in the gene are associated with <15% of all cases. The pseudogene presents high homology with , challenging molecular diagnosis by next-generation sequencing (NGS).

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The characterization and cytotoxicity of the essential oil from (L.) aerial parts (CBEO) were previously conducted. The major compound was ()-2-lachnophyllum ester (EZ), and CBEO exhibited significant ROS-dependent cytotoxicity in the melanoma cell line SK-MEL-28.

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Background: Coffee cultivation and agroindustry generate residues that are rich in several metabolites. These compounds, such as phenolic compounds and alkaloids, are known for their antioxidant activity and are usually consumed as nutraceuticals. The purpose of this study was to evaluate the occurrence of chemical and antioxidant components of low-pruned coffee stems under different fertilizer regimes.

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Introduction: Coproduction of mental health research and interventions involving researchers and young people is increasingly common. However, this model raises challenges, related, for instance, to communication, power and control. This paper narrates-from a collective first-person perspective-the lived experience of coproduction of a digital intervention by institutional researchers and young citizen researchers in Brazil.

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This study aimed to describe the process of construction, validation, and usability of the chatbot ESTOMABOT to assist in the self-care of patients with intestinal ostomies. Methodological research was conducted in three phases: construction, validation, and usability. The first stage corresponded to the elaboration of a script through a literature review, and the second stage corresponded to face and content validation through a panel of enterostomal therapy nurses.

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Background: Studying the effects of smoking intensity is important to evaluate the risk of tobacco use on a range of illnesses, such as as sarcopenia among the elderly. Thus, this study aimed to analyze the effects of pack-years of cigarette smoking on the diaphragm muscle (DIAm) histopathology of postmortem samples.

Methods: Subjects were divided into three groups: never-smoker ( = 46); less than 30 pack-years of smoking ( = 12); and more than 30 pack-years of smoking ( = 30).

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This article describes the process of developing and validating a virtual assistant to perform vaccine pharmacovigilance. We performed a pilot study with a panel of 22 healthcare professionals who performed content validation of the virtual assistant prototype. Usability was tested with 126 users, using the System Usability Scale.

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Introduction: With the COVID-19 pandemic, hospitals in low-income countries were faced with a triple challenge. First, a large number of patients required hospitalisation because of the infection's more severe symptoms. Second, there was a lack of systematic and broad testing policies for early identification of cases.

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The use of non-conventional carbon sources for biosurfactant-producing microorganisms is a promising alternative in fermentation to substitute costly substrates. So, the current research used pineapple peel as a cost-effective and renewable substrate because of its rich composition in minerals and sugars and high availability. Following a 2 full factorial design, a bacterial strain of Bacillus subtilis produced biosurfactants in fermentative media containing different concentrations of glucose and concentrated pineapple peel juice (CPPJ).

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Objective: Malignant hyperthermia (MH) is characterized by a state of hypermetabolism after exposure to halogenated inhalational anesthetics or succinylcholine. The aims of this study were to carry out an updated review on the subject and report an illustrative case of MH in urgent maxillofacial surgery.

Material And Methods: A search of the PubMed/MEDLINE database using the keyword "malignant hyperthermia" was performed including articles published over the last 11 years in English, Spanish or Portuguese.

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Genomic studies may generate massive amounts of data, bringing interpretation challenges. Efforts for the differentiation of benign and pathogenic variants gain importance. In this article, we used segregation analysis and other molecular data to reclassify to benign or likely benign several rare clinically curated variants of autosomal dominant inheritance from a cohort of 500 Brazilian patients with rare diseases.

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This study aimed to describe the development process, content validation, and usability of a COVID-19 screening system incorporated into a chatbot-type intelligent virtual assistant (CoronaBot). This is a methodological research carried out in three phases. The first corresponded to the development of the flowchart and content of the virtual assistant, the second phase consisted of the implementation of the content in chatbot, and the third phase consisted of content validation.

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Article Synopsis
  • Polymeric nanoparticles are versatile, non-toxic, and biodegradable, making them effective for drug delivery in health applications, particularly in treating diseases like prostate cancer, which has high mortality rates.
  • The study aimed to identify patents that utilize polymeric nanoparticles specifically for prostate cancer treatment.
  • Five patents were found, with one particularly noteworthy invention combining PCL-PLGA-PEGCOOH nanoparticles with natural compounds resveratrol and celastrol, suggesting a new approach beyond traditional therapies.
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Article Synopsis
  • * This study investigated the effectiveness of ultrafiltration on pineapple juice to retain bromelain activity, finding up to 87% recovery using specific conditions.
  • * The ultrafiltration process successfully maintained the enzyme's activity and physical properties, indicating it is an efficient method for purifying bromelain enzymes.
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The aim of this study was to analyze the effects of Trichoderma asperellum on germination indexes and seedling parameters of lettuce cultivars. The trial was arranged in a completely randomized design with three cultivars (Cerbiata, Crespa Grand Rapids, and Mimosa), and two seed-treatment products (quality and organic) containing strain URM 5911 of Trichoderma asperellum plus a control group (untreated), with four repetitions. After seven days, six seedling characters were measured (shoot length, radicle length, total length, shoot diameter, radicle diameter, and seedling dry matter) and eight germination indexes were calculated (germination, first count, mean germination time, germination speed index, coefficient of velocity of germination, mean germination rate, Timson's germination index, and germination rate index).

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The present study aims to develop an integrative review about pseudoaneurysms after traumatic facial trauma, through the analysis of its etiology, type of fracture, signs and symptoms, time elapsed between the trauma and the exposure of signs and symptoms, and treatment performed in these cases. Furthermore into the report, there are 3 clinical cases that occurred in the Buccomaxillofacial Surgery and Traumatology service of Hospital da Restauração Recife/PE. The study was carried out in 2 phases, first, a digital research about post-traumatic craniofacial pseudoaneurysm was performed in the following databases "MEDLINE/PubMed," "Scielo" and "Scopus," in September 2019, with 5 articles being included.

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Objetive: Describing the theoretical sampling process in the development of a Grounded Theory based on the Straussian strand. The objective of the field research, used as an example, was to develop a substantive theory, based on the theoretical framework of Symbolic Interactionism, about the perceptions and experiences of patients, family members, and health professionals regarding the presence of the family during emergency care.

Method: In the theoretical sampling, 42 participants were recruited, divided into nine sample groups, constituted based on the constant comparative method.

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The monoamine neurotransmitter serotonin (5-HT) modulates anxiety by its activity on 5-HT receptors (5-HTR) expressed in the dorsal periaqueductal gray (dPAG). Here, we investigated the presence of 5-HT receptors (5-HTR) in the dPAG, and the interplay between 5-HTR and 5-HTR in the dPAG in mediating anxiety-like behavior in mice. We found that 5-HTR is expressed in the dPAG and the blockade of these receptors using intra-dPAG infusion of ondansetron (5-HTR antagonist; 3.

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Objective: To know the perception of health professionals and their families about fake news related to the COVID-19 pandemic.

Method: Descriptive-exploratory study with a qualitative approach. Twenty-eight individuals participated, including seven physicians, seven nurses, and 14 family members.

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