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Aryl Hydrocarbon Receptor (AHR) ligands, upon binding, induce distinct gene expression profiles orchestrated by the AHR, leading to a spectrum of pro- or anti-inflammatory effects. In this study, we designed, synthesized and evaluated three indole-containing potential AHR ligands (FluoAHRL: AGT-4, AGT-5 and AGT-6). All synthesized compounds were shown to emit fluorescence in the near-infrared. Their AHR agonist activity was first predicted using in silico docking studies, and then confirmed using AHR luciferase reporter cell lines. FluoAHRLs were tested in vitro using mouse peritoneal macrophages and T lymphocytes to assess their immunomodulatory properties. We then focused on AGT-5, as it illustrated the predominant anti-inflammatory effects. Notably, AGT-5 demonstrated the ability to foster anti-inflammatory regulatory T cells (Treg) while suppressing pro-inflammatory T helper (Th)17 cells in vitro. AGT-5 actively induced Treg differentiation from naïve CD4+ cells, and promoted Treg proliferation, cytotoxic T-lymphocyte-associated antigen 4 (CTLA-4) expression and interleukin-10 (IL-10) production. The increase in IL-10 correlated with an upregulation of Signal Transducer and Activator of Transcription 3 (STAT3) expression. Importantly, the Treg-inducing effect of AGT-5 was also observed in human tonsil cells in vitro. AGT-5 showed no toxicity when applied to zebrafish embryos and was therefore considered safe for animal studies. Following oral administration to C57BL/6 mice, AGT-5 significantly upregulated Treg while downregulating pro-inflammatory Th1 cells in the mesenteric lymph nodes. Due to its fluorescent properties, AGT-5 could be visualized both in vitro (during uptake by macrophages) and ex vivo (within the lamina propria of the small intestine). These findings make AGT-5 a promising candidate for further exploration in the treatment of inflammatory and autoimmune diseases.
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Receptores de Hidrocarboneto Arílico , Linfócitos T Reguladores , Animais , Receptores de Hidrocarboneto Arílico/metabolismo , Receptores de Hidrocarboneto Arílico/agonistas , Linfócitos T Reguladores/efeitos dos fármacos , Linfócitos T Reguladores/imunologia , Camundongos , Anti-Inflamatórios/farmacologia , Anti-Inflamatórios/química , Anti-Inflamatórios/síntese química , Humanos , Peixe-Zebra , Corantes Fluorescentes/química , Ligantes , Camundongos Endogâmicos C57BL , Indóis/farmacologia , Indóis/química , Diferenciação Celular/efeitos dos fármacosRESUMO
BACKGROUND: The professional self-concept of nursing students significantly influences their attitude and identity within the profession, ultimately impacting their mental health and overall well-being. Recent evidence underscores the importance of assessing students' professional self-concept to prevent adverse outcomes such as burnout and stress. Since there are currently no validated instruments available in Portugal for this purpose, our objective was to translate, adapt, and validate the Nurse Self-Concept Questionnaire (NSCQ) with nursing students in Portugal. METHODS: A two-phase research study with a non-probabilistic sample of 216 undergraduate nursing students, using the QualtricsXM electronic platform for data collection. An exploratory factor analysis was performed to verify the validity of the theoretical construct and its internal consistency. Cronbach's alpha was calculated, and a confirmatory factor analysis was performed to assess the model fit. RESULTS: The final instrument, designated as Questionário de Autoconceito dos/as Enfermeiros/as (Pt - NSCQ), is composed of 24 items distributed across five dimensions: "General self-concept", "Staff relations", "Leadership", "Communication-care" and "Knowledge", which explain 67.71% of the total variance. All dimensions and the global scale revealed good internal consistency values, ranging from 0.775 to 0.927. The resulting factorial structure is coherent with the theoretical framework. CONCLUSION: The Pt - NSCQ proved to be a valid and reliable instrument to assess Portuguese nursing students' professional self-concept. Future studies should be carried out on larger samples and different educational contexts, aligned with the importance to ensure the continuity of the psychometric analysis of the instrument.
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BACKGROUND: Chronic pain is a worldwide public health challenge. Despite chronic pain having biopsychosocial dimensions, its social contexts are less investigated. Although current evidence shows that chronic pain shapes and is shaped by interactions with romantic partners, research about friendships and chronic pain is scarce, and mostly focused on adolescents. AIM: Drawing upon theories on friendship and social support, this study aimed to investigate the role of adult friendships on chronic pain adjustment and, the effect of chronic pain on adult friendships. METHODS: This study drew upon a qualitative descriptive methodology. Sixteen adults with primary or secondary (non-cancer) chronic pain participated in individual semi-structured interviews, conducted using voice over internet protocol applications. Data analysis was guided by Clarke and Brown's guidelines for thematic analysis. RESULTS: The analysis of participants' (87.5% women; Mage = 43 years) stories revealed two themes. The first captured how friends promote/hinder adjustment to chronic pain by being: (1) (un)available and providing (un)needed support; and (2) (not)accepting and (not)accommodating to support life engagement. The second captured the negative effect of chronic pain on both parties' attitudes and behaviors towards the relationship, leading to smaller and more homogeneous friendship networks. CONCLUSIONS: This study stresses the relevance of including adult friends in interventions to reduce the negative effect of chronic pain on friendships, harnessing their power to promote chronic pain adjustment. The findings bring new insights on a topic that has rarely been investigated in the pain field, hence pointing out innovative directions for future research and practice.
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Dor Crônica , Amigos , Adolescente , Humanos , Adulto , Feminino , Masculino , Dor Crônica/psicologia , Apoio Social , Relações InterpessoaisRESUMO
BACKGROUND: Herpes simplex virus (HSV) keratitis remains a leading infectious cause of blindness worldwide. Although all forms of HSV keratitis are commonly recurrent, the risk is greatest in stromal keratitis, which is the most likely to result in corneal scarring, thinning, and neovascularization. Recent studies showed the ability of Optical Coherence Tomography Angiography (OCTA) to detect and study vascular abnormalities in the anterior segment, including abnormal corneal vessels. This study intends to investigate the potential of OCTA device to image and describe quantitatively the vascularization in eyes diagnosed with herpetic leucoma and to discuss and review the usefulness of this technique in this pathology. METHODS: A Cross-sectional study was made, including 17 eyes of 15 patients with leucoma secondary to herpetic keratitis. All eyes underwent anterior segment Slit-Lamp photography (SLP), and OCTA with en-face, b-scans and c-scans imaging. The vessel density (VD) was analyzed in the inferior, nasal and temporal corneal margin in all patients, and in the central area, in eyes with central corneal neovascularization (CoNV). The measurements were calculated after binarization with ImageJ software, using OCTA scans with 6 × 6 mm in a depth of 800 µm. RESULTS: Patients included had a mean age 53.267 ± 21.542 (years ± SD). The mean total vessel area was 50.907% ± 3.435%. VD was higher in the nasal quadrant (51.156% ± 4.276%) but there were no significant differences between the three analyzed areas (p = 0.940). OCTA was able to identify abnormal vessels when SLP apparently showed no abnormal vessels; OCTA was able to distinguish between larger and smaller vessels even in central cornea; OCTA scans allowed the investigation of several corneal planes and the relation of them with clinical findings. CONCLUSIONS: OCTA can be useful in both qualitative and quantitative follow-up of patients and may become a non-invasive alternative to objectively monitor treatment response in eyes with corneal vascularization due to herpetic infection.
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Opacidade da Córnea/diagnóstico por imagem , Opacidade da Córnea/virologia , Ceratite Herpética/complicações , Tomografia de Coerência Óptica/métodos , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Córnea/irrigação sanguínea , Neovascularização da Córnea/diagnóstico por imagem , Opacidade da Córnea/patologia , Estudos Transversais , Feminino , Humanos , Processamento de Imagem Assistida por Computador/métodos , Ceratite Herpética/diagnóstico por imagem , Ceratite Herpética/patologia , Masculino , Pessoa de Meia-Idade , Adulto JovemRESUMO
AIM: To describe the clinical features, treatment and outcomes of acute rheumatic fever (ARF) and rheumatic heart disease (RHD) in children admitted to the national referral hospital in Dili, Timor-Leste. METHODS: This prospective study documented cases of ARF and RHD in children aged 14 years and under who were admitted between June 2017 and May 2019. ARF was diagnosed using an adapted version of the 2015 Jones criteria and presumed (rather than proven) exposure to group A Streptococcus. Clinical and echocardiographic findings, comorbidities and discharge outcomes are reported. RESULTS: A total of 63 patients were admitted with ARF or RHD; 54 were diagnosed with RHD for the first time. Median age was 11 years (range 3-14); 48% were female. Of those with echocardiograms, 56/58 had RHD, 55/56 (98%) had mitral regurgitation (37/55 (67%) severe), 11/56 (20%) had mitral stenosis and 43/56 (77%) had aortic regurgitation. Left ventricular dysfunction (55%), pulmonary hypertension (64%) and cardiac failure (78%) were common. Four (6%) patients died in hospital, and 30/59 (51%) of surviving patients were lost to follow up. CONCLUSIONS: Community echocardiography screening has reported a high prevalence of undetected mild to moderate cases of RHD in Timor-Leste, whereas this hospital study documents mostly severe disease among hospitalised patients with a high case fatality rate and loss to follow up. RHD is a significant health problem in Timor-Leste and improved recognition and diagnosis, as well as effective delivery of treatment and follow-up are imperative.
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Febre Reumática , Cardiopatia Reumática , Adolescente , Criança , Pré-Escolar , Feminino , Humanos , Pacientes Internados , Prevalência , Estudos Prospectivos , Febre Reumática/complicações , Febre Reumática/epidemiologia , Cardiopatia Reumática/complicações , Cardiopatia Reumática/epidemiologia , Timor-Leste/epidemiologiaRESUMO
Temporal relation of myocardial infarction with cocaine use was first reported in 1982, coronary spasm being the presumed aetiology since most patients presented with normal coronary arteries. However, severe and diffused coronary atherosclerosis is also common in cocaine users with myocardial infarction. The management of these patients presenting with chest pain includes therapy directed to antagonize sympathetic activation and mechanical reperfusion or thrombolytic therapy if ischaemia continues.
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Cocaína , Vasoespasmo Coronário , Infarto do Miocárdio , Dor no Peito , Eletrocardiografia , Humanos , Infarto do Miocárdio/induzido quimicamente , Infarto do Miocárdio/diagnóstico , Infarto do Miocárdio/terapiaRESUMO
BACKGROUND: The high-grade atrioventricular block (HAVB) occurrence in acute coronary syndrome (ACS) is a potentially life-threatening complication, that demands a rapid and efficient response regarding reperfusion time and rhythm stabilization. This study aimed to analyse the rate, clinical features, therapeutic approach, complications, in-hospital mortality and follow-up of HAVB in the setting of ACS. METHODS: Multicenter retrospective study based on the Acute Coronary Syndrome Portuguese National Registry, including 32157 patients admitted for ACS between 1/10/2010-3/05/2020, classified according to the presence or absence of HAVB during the hospitalization for ACS. Comparison between the two groups was performed. Logistic regression was accomplished to assess predictors of HAVB in ACS patients. RESULTS: Patients with HAVB were older, and had higher rates of females, history of stroke and neoplasia. HAVB patients presented more frequently ST-segment elevation myocardial infarction, syncope as a major symptom, higher Killip-Kimball class and multivessel disease. Furthermore, HAVB patients had more major adverse cardiac events during the hospitalization for ACS, namely heart failure complication, cardiogenic shock complication, new-onset of atrial fibrillation, ACS mechanical complication, sustained ventricular tachycardia, cardiac arrest, stroke complication and in-hospital death. Logistic regression revealed that female gender, age ≥ 75 years old, heart rate < 60 and Killip-Kimball class > I were predictors of HAVB in ACS patients. Also, HAVB patients presented higher rates of all-causes of death at 1-year follow-up (p = 0.011). CONCLUSIONS: Using real-life data, patients with HAVB in the setting of ACS had a worse prognosis during hospitalization and in the short-term follow-up period.
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Síndrome Coronariana Aguda , Bloqueio Atrioventricular , Síndrome Coronariana Aguda/diagnóstico , Idoso , Bloqueio Atrioventricular/diagnóstico , Eletrocardiografia , Feminino , Mortalidade Hospitalar , Humanos , Portugal/epidemiologia , Sistema de Registros , Estudos RetrospectivosRESUMO
Intrusive thoughts and compulsive urges to perform stereotyped behaviours are typical symptoms of obsessive-compulsive disorder. Emerging evidence suggests a cognitive bias towards habit formation at the expense of goal-directed performance in obsessive-compulsive disorder. In this study, we test this hypothesis using a novel individualized ecologically valid symptom provocation design: a live provocation functional magnetic resonance imaging paradigm with synchronous video-recording of behavioural avoidance responses. By pairing symptom provocation with online avoidance responses on a trial-by-trial basis, we sought to investigate the neural mechanisms leading to the compulsive avoidance response. In keeping with the model of habit formation in obsessive-compulsive disorder, we hypothesized that this disorder would be associated with lower activity in regions implicated in goal-directed behaviours and higher activity in regions implicated in habitual behaviours. Fifteen patients with obsessive-compulsive disorder and 15 healthy control volunteers participated in this functional magnetic resonance imaging study. Online stimuli were individually tailored to achieve effective symptom provocation at neutral, intermediate and strong intensity levels. During the symptom provocation block, the participant could choose to reject or terminate the provoking stimuli resulting in cessation of the symptom provocation. We thus separately analysed the neural correlates of symptom provocation, the urge to avoid, rejection and relief. Strongly symptom-provoking conditions evoked a dichotomous pattern of deactivation/activation in patients, which was not observed either in control conditions or in healthy subjects: a deactivation of caudate-prefrontal circuits accompanied by hyperactivation of subthalamic nucleus/putaminal regions. This finding suggests a dissociation between regions engaged in goal-directed and habitual behaviours. The putaminal hyperactivity during patients' symptom provocation preceded subsequent deactivation during avoidance and relief events, indicating a pivotal role of putamen in regulation of behaviour and habit formation in obsessive-compulsive disorder. Effective connectivity analysis identified the ventromedial prefrontal cortex/orbitofrontal cortex as the main structure in this circuitry involved in the modulation of compulsivity in obsessive-compulsive disorder. These findings suggest an imbalance in circuitry underlying habitual and goal-directed action control, which may represent a fundamental mechanism underlying compulsivity in obsessive-compulsive disorder. Our results complement current models of symptom generation in obsessive-compulsive disorder and may enable the development of future therapeutic approaches that aim to alleviate this imbalance.
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Encéfalo/patologia , Transtornos Cognitivos/etiologia , Objetivos , Transtorno Obsessivo-Compulsivo/complicações , Transtorno Obsessivo-Compulsivo/patologia , Equilíbrio Postural/fisiologia , Transtornos de Sensação/etiologia , Adulto , Análise de Variância , Encéfalo/irrigação sanguínea , Feminino , Humanos , Modelos Lineares , Imageamento por Ressonância Magnética , Masculino , Adulto JovemRESUMO
AIM: To describe the stages of developing a board game prototype to promote knowledge about nursing mentorship. BACKGROUND: Clinical supervision in nursing is a vital strategy for the quality of care. The use of gamification through a board game can enhance knowledge about mentoring in nursing. DESIGN: We present a pilot study describing the development phases of the board game "Game4NurseSupervisor®." METHODS: The study comprised three phases. The first phase involved a modified e-Delphi study with experts to collect and validate the content to be integrated into the board game. The second phase focused on constructing the prototype of the board game. Finally, the third phase involved testing the prototype in sessions held in two healthcare units, followed by an evaluation through a questionnaire. RESULTS: The e-Delphi study, involving a panel composed of 59 experts, progressed through two rounds, resulting in 61 cards divided into four categories. The second phase involved constructing the board game, incorporating interactive elements such as "Game4NurseSupervisor®." In the third phase, 25 nurses, consisting of clinical practice nurses, participated in the testing phase and expressed satisfaction with the game. Highlighted benefits included reflective, playful, dynamic, interactive and educational aspects. CONCLUSIONS: The conclusions suggest that "Game4NurseSupervisor®" could be a valuable tool for promoting knowledge about nursing mentorship, providing an innovative and interactive approach to skill development. This study makes a valuable contribution by addressing a previously unexplored aspect of nurse mentor training: the potential of board games.
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Tutoria , Estudantes de Enfermagem , Humanos , Mentores , Projetos Piloto , Atenção à SaúdeRESUMO
INTRODUCTION: Glaucoma-related dry eye disease (DED) is often underestimated, but it is an important comorbidity affecting 40% to 59% of glaucoma patients. It may be an exacerbation of a pre-existing condition or a novel disease starting after the initiation of topical medication. The cumulative effect of medication, preservatives and excipients leads to an alteration in tear film composition and ocular surface stability. The main purpose of this investigation was to study a group of Portuguese glaucoma patients regarding the presence of DED symptoms and correlate the severity of the symptoms with the usage of different types of glaucoma topical medications. MATERIALS AND METHODS: This is a cross-sectional observational study of patients diagnosed with primary and secondary open-angle glaucoma. The questionnaire Standardized Patient Evaluation of Eye Dryness (SPEED) translated to Portuguese (SPEED-Vp) was taken by patients followed in the Glaucoma Department of Unidade Local de Saúde Entre Douro e Vouga, Santa Maria da Feira, Portugal. Data was collected regarding their age, gender, type of topical medication in use as well as frequency and duration of usage. A statistical analysis was performed. RESULTS: A total of 75 patients answered the SPEED-Vp questionnaire. The mean age was 72 ± 7 years old. Fifty-two percent (n=39) were male, and 48% (n=36) were female patients. About 49.33% (n=37) had been on intraocular pressure (IOP)-lowering eyedrops for more than five years. About 61.43% (n=43) of patients used IOP-lowering eyedrops with preservatives. Most of the patients used prostaglandin analogs (75.71%, n=53) and beta-blockers (72.86%, n=51). SPEED score average was 2.75. About 25.33% (n=19) had no DED symptoms, 58.67% (n=44) had mild symptoms, 8% (n=6) had moderate symptoms and 8% (n=6) had severe symptoms. No statistically significant correlation was found between SPEED score and age, gender, number of eyedrop containers, number of active principles, application frequency, presence of preservatives, number of eyedrop containers with preservatives, duration of eyedrops usage or any of the medication groups. CONCLUSION: Although a high percentage of patients were on eyedrops with preservatives, this low rate of symptoms might be because patients tended to devalue these symptoms; were already on treatment with artificial tears; or have an underestimation of the sensation of dry eye due to decreased neuronal corneal nerve responses and density. These results were surprisingly positive. This might also be the result of the healthcare provider's sensibilization to this issue (early diagnosis, early prescription of artificial tears and change from preservative to preservative-free medication).
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Mosquito-borne diseases kill millions of people each year. Therefore, many innovative research and population control strategies are being implemented but, most of them require large-scale production of mosquitoes. Mosquito rearing depends on fresh blood from human donors, experimentation animals or slaughterhouses, which constitutes a strong drawback since high blood quantities are needed, raising ethical and financial constraints. To eliminate blood dependency and the use of experimentation animals, we previously developed BLOODless, a patented diet that represents an important advance towards sustainable mosquito breeding in captivity. BLOODless diet was used to maintain a colony of Anopheles stephensi for 40 generations. Bloodmeal appetite, fitness, Plasmodium berghei infectivity, whole genome sequencing and microbiota were evaluated over time. Here we show that BLOODless can be implemented in Anopheles insectaries since it allows long-term rearing of mosquitoes in captivity, without a detectable effect on their fitness, infectivity, nor on their midgut and salivary microbiota composition.
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Anopheles , Microbiota , Plasmodium berghei , Animais , Anopheles/microbiologia , Anopheles/parasitologia , Plasmodium berghei/fisiologia , Mosquitos Vetores/microbiologia , Mosquitos Vetores/parasitologia , Malária/transmissão , Humanos , Camundongos , Feminino , Sangue/microbiologiaRESUMO
BACKGROUND: Understanding the link between plantar force, pressure, and foot discomfort is important for nursing students' well-being, given the prevalence of foot and ankle musculoskeletal disorders among nurses. Assessing these factors can inform tailored self-care interventions, supporting holistic nursing education. PURPOSE: To assess the plantar force and pressure distribution of third-year nursing students at baseline and after 5 months of exposure to a clinical setting. METHODS: A prospective cohort study in a Portuguese nursing school measured changes in podiatric profile at 5 months, including peak pressure, maximum force, and contact area. RESULTS: Elevated mean peak pressure in the heel correlated positively with maximum force and contact area. Negative correlations were found between the contact area and edema. Peak pressure correlated positively with thigh pain, indicating pressure transfer to metatarsal heads. CONCLUSIONS: The findings underscore the importance of integrating ergonomic education into nursing curricula and raising awareness of self-care interventions.
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INTRODUCTION: The main treatment for ST-elevation myocardial infarction (STEMI) is the re-establishment of the coronary flow of infarct-related arteries. However, 50% of cases present multivessel disease (MVD), negatively affecting mortality. Complete revascularization (CR) is currently advocated since it reduces major adverse cardiovascular events (MACE). OBJECTIVE: Evaluation of the adopted revascularization strategy and its prognostic value in a Portuguese cohort of STEMI patients with MVD. MATERIAL AND METHODS: Retrospective analysis of patients admitted with STEMI included in the Portuguese Registry of Acute Coronary Syndromes between 2010 and 2019. Patients were divided in two groups regarding revascularization strategy (complete versus incomplete) and compared. Independent predictors of a composite of all-cause mortality and rehospitalization for cardiovascular causes were assessed by multivariate logistic regression. RESULTS: A total of 3500 patients were included. A CR strategy was performed in 21.8% of patients, who were younger and healthier. They also presented more hemodynamically stable and had less kidney dysfunction and anaemia. Their coronary anatomy was less complex, with a higher prevalence of 2-vessel and a lower proportion of chronic occlusions. In-hospital and 1-year adverse events were less frequent between patients with CR. CONCLUSION: In hemodynamically stable STEMI patients, CR substantially reduced in-hospital and 1-year all-cause mortality and MACE.
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Síndrome Coronariana Aguda , Doença da Artéria Coronariana , Intervenção Coronária Percutânea , Infarto do Miocárdio com Supradesnível do Segmento ST , Humanos , Infarto do Miocárdio com Supradesnível do Segmento ST/diagnóstico , Infarto do Miocárdio com Supradesnível do Segmento ST/cirurgia , Infarto do Miocárdio com Supradesnível do Segmento ST/etiologia , Doença da Artéria Coronariana/diagnóstico , Doença da Artéria Coronariana/cirurgia , Doença da Artéria Coronariana/etiologia , Estudos Retrospectivos , Intervenção Coronária Percutânea/efeitos adversos , Síndrome Coronariana Aguda/etiologia , Resultado do Tratamento , Revascularização MiocárdicaRESUMO
OBJECTIVE: To identify and describe the mental health training programs for non-health professionals and volunteers who work, have worked, or would work with asylum seekers and/or refugees. METHOD: Scoping review following JBI methodology. Search carried out in MEDLINE, CINAHL, ERIC, SCOPUS, PsycINFO, Psychology & Behavioral Sciences Collection, RCAAP, ProQuest, and websites of Clinical Trials, UNHCR, International Organization for Migration, WHO, Save the Children, International Migration, Integration and Social Cohesion in Europe, and International Federation of Red Cross and Red Crescent Societies. Studies written in English, Portuguese, French, Spanish and Swedish. RESULTS: Of the 8954 articles identified, 16 were included reporting on 11 training programs: Mind-Spring, PM+, MHFA, Cognitive-Behavioral Training for Community and Religious Leaders, EmpaTeach, Suicide Prevention Education Program, Teaching Recovery Techniques, Handbook for Teachers of Vietnamese Refugee Students, PFA, Psychosocial support of volunteers and CBP&MHPSS. CONCLUSION: Training programs from scientific literature focus on mental health disorders, while non-governmental organizations' documents focus on resilience and self-care. The current mental health training programs might be insufficient.
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Refugiados , Criança , Humanos , Saúde Mental , Estudantes , Voluntários , Treino CognitivoRESUMO
The involvement of immunity in psychiatric disorders, such as anxiety, is typified by the morphologic adaptation of microglia, immune cells of the brain, to anxiogenic stimuli. We previously reported sexually differentiated microglia morphology in adult rodents, in brain locations implicated in anxiety, including the pre-frontal cortex. These physiologic differences likely drive sex-dependent patterns of microglia morphologic remodeling in response to varied stress conditions in different periods of life, that correlate with sex-dependent behavioral adaptation to anxiogenic stimuli. The time-window of appearance of sex differences in microglia, correlating with sex-specific behavioral performance in anxiogenic conditions are still unknown. In rodents, a postnatal peak of the sexual hormone testosterone is determinant for the so-called brain masculinization and sex-determined behavioral traits. In the present work we aim to clarify if differences in microglia morphology are present at birth or can be driven by postnatal testosterone and impacts on the ability to deal with an anxiogenic context. Differences in microglia morphology are not present at birth, but are observable at adolescence (increased complexity of male microglia, particularly in branches more proximal to the soma), when differences in behavior are also observed. Our data also show that adolescent females neonatally treated with testosterone exhibit masculinized microglia and behavior. Importantly, between adolescence and adulthood, a sex-determined shift in the pattern of complexity takes place and microglia from females become more complex. When testosterone is administered, this morphological effect is partially abolished, approximating microglia and behavior to the male phenotype.
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Microglia , Testosterona , Animais , Feminino , Masculino , Testosterona/farmacologia , Comportamento Animal , Comportamento Sexual Animal , Encéfalo/fisiologiaRESUMO
Background: The incidence of diabetic foot ulceration (DFU) is increasing worldwide. Therapeutic footwear is usually recommended in clinical practice for preventing foot ulcers in persons with diabetes. The project Science DiabetICC Footwear aims to develop innovative footwear to prevent DFU, specifically a shoe and sensor-based insole, which will allow for monitoring pressure, temperature, and humidity parameters. Method: This study presents a three-step protocol for the development and evaluation of this therapeutic footwear, specifically: (i) a first observational study will specify the user requirements and contexts of use; (ii) after the design solutions were developed for shoe and insole, the semi-functional prototypes will be evaluated against the initial requirements; (iii) and a pre-clinical study protocol will enable the evaluation of the final functional prototype. The eligible diabetic participants will be involved in each stage of product development. The data will be collected using interviews, clinical evaluation of the foot, 3D foot parameters and plantar pressure evaluation. This three-step protocol was defined according to the national and international legal requirements, ISO norms for medical devices development, and was also reviewed and approved by the Ethics Committee of the Health Sciences Research Unit: Nursing (UICISA: E) of the Nursing School of Coimbra (ESEnfC). Results: The involvement of end-users (diabetic patients) will enable the definition of user requirements and contexts of use to develop design solutions for the footwear. Those design solutions will be prototyped and evaluated by end-users to achieve the final design for therapeutic footwear. The final functional prototype will be evaluated in pre-clinical studies to ensure that the footwear meets all the requirements to move forward to clinical studies. Discussion: The three-step study outlined in this protocol will provide the necessary insights during the product development, ensuring this new therapeutic footwear's main functional and ergonomic features for DFU prevention.
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Diabetes Mellitus , Pé Diabético , Humanos , Pé Diabético/prevenção & controle , Sapatos , Pé , Estudos Observacionais como AssuntoRESUMO
Background: In a society increasingly committed to promoting an active life in the community, new resources are needed to respond to the needs of citizens with Alzheimer's disease and other forms of dementia. The potential of several individual cognitive interventions to be provided by caregivers has been explored in the literature. Objective: To synthesize the best available evidence on the effectiveness of caregiver-provided individual cognitive interventions in older adults with dementia. Methods: Systematic review of experimental studies on individual cognitive interventions for older adults with dementia. An initial search of MEDLINE and CINAHL was undertaken. Another search for published and unpublished studies was performed on major healthcare-related online databases in March 2018 and updated in August 2022. This review considered studies that included older adults with dementia, aged 60 years and over. All studies that met the inclusion criteria were assessed for methodological quality using a JBI standardized critical appraisal checklist. Data were extracted using a JBI data extraction form for experimental studies. Results: Eleven studies were included: eight randomized controlled trials and three quasi-experimental studies. Caregiver-provided individual cognitive interventions had several beneficial effects in cognitive domains, including memory, verbal fluency, attention, problem-solving, and autonomy in activities of daily living. Conclusion: These interventions were associated with moderate improvements in cognitive performance and benefits in activities of daily living. The findings highlight the potential of caregiver-provided individual cognitive interventions for older adults with dementia.
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Nurses are considered one of the largest professional groups in healthcare, generating positive health outcomes for people at various stages of life. A significant impact on the construction of the professional self-or professional self-concept-is considered to exist through the educational process, influenced by factors such as the family and societal expectations often presented by teachers, tutors, and peers. Improving professional self-concept in nursing can offer specific gains in personal, relational, social, and interpersonal communication skills, favoring evolution in the academic and clinical path. This scoping review aims to map the literature related to the state of knowledge regarding professional self-concept in nursing. This scoping review will follow JBI recommendations with the PCC mnemonic and report its findings through PRISMA-ScR using a specific instrument made by the researchers. Providing healthcare complying with high scientific standards requires the professional to have enough self-confidence in his work and skills. The explicit acknowledgement of professional self-concept is essential for any educational tutor or experienced mentor to promote mental health and academic and professional performance.
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BACKGROUND: Prolonged standing environments constitute an occupational risk factor for nurses, particularly for developing foot and ankle disorders. The definitions and potential relationship to hours spent walking or standing are poorly understood. This scoping review aimed to synthesize the main disorders found on nurses' ankles and feet, their prevalence, the influence of hours spent walking or standing, and gender differences. METHODS: This review followed a previously published protocol. Primary and secondary studies were retrieved from relevant databases from December 2020 to March 2021. Potential articles were collated to Mendeley, and two independent reviewers assessed the title and abstracts. Studies meeting inclusion criteria were included. Two researchers retrieved and reviewed the full text of these studies independently. A predetermined extraction tool was used to retrieve relevant data, summarized in a tabular and narrative format. FINDINGS: The most common disorder was pain, followed by numbness, burning feet, bunions, structural deformities, and calluses. Prevalence differed among studies, depending on settings and specific local policies. Discussion: Various foot and ankle disorders and related variables have been found, with clear gaps that may be addressed in the future. CONCLUSION/APPLICATIONS TO PRACTICE:: Few studies have focused on nurses' foot and ankle disorders. Mapping signs and symptoms may contribute to the future development of preventive interventions for nurses' workplaces.