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by Samara Santos-Araujo, Katia C. Gondim, Isabela Ramos
Autophagy and lipolysis are key metabolic pathways involved in lipid mobilization and energy homeostasis. In Rhodnius prolixus, a major vector of Chagas disease, previous studies have shown that silencing autophagy-related genes (RpAtg8, RpAtg6) or the brummer lipase gene RpBmm alters lipid metabolism and impairs flight activity. Here, we investigate the combined roles of lipolysis and lipophagy by performing a dual RNAi-mediated silencing of RpAtg8 and RpBmm under both fed and starved conditions. In the fat body, dual silencing did not exacerbate triacylglycerol (TAG) accumulation beyond single knockdowns but led to significant enlargement of lipid droplets (LDs), suggesting adaptive remodeling. In contrast, the flight muscle of fed insects showed additive increases in TAG content, indicating synergistic impairment of lipid mobilization under this condition. Dual knockdown also modulated expression of lipid metabolism-related genes, including AKHr, Dgat1/2, and Plin1, in a tissue- and condition-specific manner. Combined silencing reduced vitellogenin levels in the hemolymph, significantly compromised oviposition, hatching success, survival, as well as flight capacity. Nonetheless, none of the phenotypes observed in the dual-silenced group showed additive effects when compared to the single knockdowns. Thus, while some phenotypes appeared additive, particularly in TAG accumulation in the flight muscle (only under fed conditions) and fat body LD remodeling, most impairments were not changed by the dual knockdown. These results highlight the crucial but apparent redundant roles of lipolysis and autophagy in maintaining lipid homeostasis and ensuring reproductive success in R. prolixus.To identify and synthesise nursing interventions directed at family caregivers of patients with end-stage renal disease undergoing haemodialysis.
A convergent-integrated mixed-methods systematic review.
A comprehensive search was conducted in EBSCOHost databases (Academic Search Complete, CINAHL Complete, MEDLINE with Full Text, MedicLatina, ERIC) and the PubMed database. Studies were appraised using the Mixed-Methods Appraisal Tool (MMAT), and interventions were classified using the Cochrane Effective Practice and Organisation of Care taxonomy.
Quantitative data were narratively synthesised and transformed into textual descriptions to enable integration with qualitative findings. A thematic synthesis was conducted to group similar concepts.
Twenty-three studies met the inclusion criteria. Most were quantitative or mixed methods with moderate-to-high methodological quality. Interventions were primarily classified as disease management (n = 10) or self-management support (n = 9). Common components included education, coping strategies, empowerment, and psychosocial support. Positive effects were observed on caregiver quality of life, anxiety, depression, and self-efficacy. Caregiver burden outcomes were mixed, potentially influenced by time and intervention intensity. Additional benefits were noted from relaxation techniques and intradialytic exercise. Qualitative data revealed culturally embedded coping strategies such as spiritual practices, time management and seeking social support.
Educational and empowerment-based nursing interventions—particularly those supporting dyadic coping and family-centred care—can improve caregiver outcomes. Frameworks such as the Roy Adaptation Model and the ‘Timing it Right’ approach enhance intervention design and relevance.
By addressing caregiver needs through structured education, psychosocial support and contextually sensitive approaches, nurses can mitigate caregiver burden and promote long-term caregiver well-being and patient adherence to treatment.
Although patients and caregivers were not directly involved, this review contributes to improving nursing care for family caregivers of individuals with ESRD, aiming to enhance their quality of life.
To analyse the relationship between authentic nursing leadership and safety climates across hospital settings during the COVID-19 pandemic.
Authentic nursing leadership shapes the safety climate by fostering positive perceptions of workplace policies, processes, procedures and practices that influence how safety is prioritised and addressed within an organisation.
A cross-sectional study.
Our study was conducted from December 2021 to December 2022 in six Brazilian hospitals. Participants were nursing staff working in General Medicine Units, Intensive Care Units (ICU) and Emergency Departments (ED) who provided care to patients with COVID-19. The Authentic Leadership Questionnaire and the Safety Attitudes Questionnaire were used to measure nursing staff perceptions of authentic leadership and safety climates. Data were analysed using descriptive and inferential statistics.
391 nursing staff across six hospitals participated. Self-awareness significantly enhanced perceptions of the safety climates. Additionally, being a Registered Nurse and working in the ICU were positively associated with achieving safe climates in the working environment. In contrast, working in EDs was significantly negatively related to safety climates.
The COVID-19 pandemic underscored a lack of authentic nursing leadership and unsafe climates. Therefore, it is critical to implement educational strategies that foster authentic leadership, particularly focusing on self-awareness, to promote more positive safety climates. Ensuring that leadership and safety climates are relationship-focused is critical to enhancing patient outcomes.
Nursing staff's perceptions of authentic leadership and safety climates are important in making more informed decisions about patient management.
Since self-awareness increases positive perceptions of safety climates, nursing staff should exercise it to guide their actions in facing future health crises.
STROBE guidelines.
Higher self-awareness in relationships with others is a predictor of safety climates and can lead to enhanced patient outcomes.
Photobiomodulation therapy (PBMT), particularly when combined with a static magnetic field (PBMT-sMF), is a promising non-pharmacological approach for managing musculoskeletal disorders. However, high-quality evidence for its efficacy in lateral epicondylitis remains limited.
The study aims to investigate the effectiveness of PBMT-sMF vs placebo in reducing pain, improving function and modulating inflammatory markers in individuals with lateral epicondylitis.
Multicentre, randomised, triple-blinded, placebo-controlled trial.
Three outpatient physiotherapy clinics in Brazil.
50 adults (18–50 years) with unilateral lateral epicondylitis and baseline pain ≥50 on the visual analogue scale (VAS).
Participants received either active PBMT-sMF (n=25) or placebo (n=25), 2 times per week for 3 weeks. PBMT-sMF involved multi-wavelength irradiation at 4 epicondyle sites (60 s; 27.1 J/site). The placebo group underwent the same procedure without active irradiation.
The primary outcome was degree of pain rating (VAS). Secondary outcomes included forearm disability (Patient-Rated Tennis Elbow Evaluation, PRTEE), grip strength, serum tumour necrosis factor-alpha (TNF-α) levels and treatment satisfaction. Assessments were conducted at baseline, post-treatment (3 weeks) and at 4-week follow-up.
PBMT-sMF yielded a higher responder rate (defined as the proportion of participants achieving at least a 30% reduction in pain intensity relative to baseline) than placebo (72% vs 40%, p=0.045), with a clinically and statistically significant between-group difference. Compared with placebo, the PBMT-sMF group showed significantly greater reductions in pain intensity both at the end of treatment (51.4±19.8 vs 36.9±22.6; p=0.0223) and at follow-up (37.4±24.1 vs 20.3±21.2; p=0.0049). TNF-α levels also decreased significantly in the PBMT-sMF group compared with placebo at both time points (p
PBMT-sMF significantly reduced pain intensity and TNF-α levels, suggesting an anti-inflammatory mechanism. Although functional outcomes were not improved, PBMT-sMF may be a valuable short-term, non-invasive option for lateral epicondylitis pain management.
NCT04829734 on ClinicalTrials.gov
Patients living with chronic obstructive pulmonary disease (COPD) experience periods of disease stability and exacerbations (ECOPD). COPD imposes a negative and impactful extrapulmonary impairment and commonly overlaps with multimorbidity, particularly cardiovascular disease. Pulmonary rehabilitation (PR) aims to improve physical activity (PA) and quality of life, while behavioural change interventions (BCIs) aim to promote lifestyle changes and autonomy. However, after ECOPD, a variety of barriers often delay patient referral to PR. This study aims to assess the effects of a BCI for patients after ECOPD, focusing on cardiovascular health, PA and functionality. Additionally, the study will assess 6-month sustainability of PA and conduct a cost-utility analysis comparing a non-intervention group in the Unified Health System.
This randomised clinical trial will assess patients with ECOPD over 12 weeks using a BCI based on self-determination theory to increase daily steps. First, the cardiovascular and functional profile will be evaluated. Afterwards, the patients will receive an accelerometer to monitor the PA level. After 7 days, questionnaires will be applied on quality of life, symptoms and motivational levels for PA. Patients will be randomised into control group or intervention groups, both will receive educational booklets and IG will also receive an educational interview. PA will be tracked using activPAL accelerometer at weeks 1, 4 and 12, and follow-up at 6 months. Data analysis will include unpaired Student’s t-test or Mann-Whitney test for group comparison, and a linear mixed model to assess intervention effects over time. Economic evaluation, using STATA (V.14), will involve correlation analysis, and p
This study has been approved by the Federal University of São Carlos’ Ethics Committee, Irmandade Santa Casa de Misericórdia de São Carlos and Base Hospital of São José do Rio Preto. All procedures will be conducted in accordance with the Declaration of Helsinki, Good Clinical Practice guidelines and applicable regulatory requirements. All results will be presented in peer-reviewed medical journals and international conferences.
Brazilian Registry of Clinical Trials under the registration number RBR-6m9pwb7.
To estimate the frequency of antidiabetic prescriptions in type 2 diabetes mellitus (T2DM) in Spain and describe changes in prescription patterns between 2018–2022 and 2023-2024.
Observational study.
Patients from primary care centres newly diagnosed with T2DM in 2018–2022 and 2023–2024.
In each period, the prescription frequency of an antidiabetic medication at the diagnosis of T2DM was calculated and subsequently subdivided into monotherapy and combination therapy. The prescription frequency of the most common antidiabetic drugs was also calculated. Calculations were made for the entire group of subjects and stratified by sex and age (under 60 years and 60 years or older). Comparison of the frequencies between the two periods was performed using the chi-square test.
In 2018–2022 and 2023–2024, 78.4% and 88.9% of patients, respectively, were prescribed an antidiabetic medication. The prescription frequencies for monotherapy and combination therapy were 66.1% and 33.9% in the first period and 57.4% and 42.6% in the second. The prescription frequencies for metformin as monotherapy and combination therapy were 57.4% and 27.8% in the first period and 46.6% and 39.8% in the second. Prescribing metformin with sodium-glucose cotransporter-2 inhibitors (SGLT2i) and/or glucagon-like peptide receptor 1 agonists (GLP1a) was the most frequent combination therapy: 12.8% in 2018–2022 and 29.5% in 2023–2024. With a few exceptions, the prescribing pattern was similar by sex and age. The difference between the prescribing distributions in the two periods is significant.
Antidiabetic medication prescribing at the diagnosis of T2DM was high. Most prescriptions contained metformin. Monotherapy decreased in 2023–2024 compared with 2018–2022, while combination therapy increased due to increased prescriptions of metformin with SGLT2i and/or GLP1a.
SARS-CoV-2 infection provides protection against reinfection and severe COVID-19 disease; however, this protective effect may diminish over time. We assessed waning of natural immunity conferred by previous infection against severe disease and symptomatic reinfection in Brazil and Scotland.
We undertook a test-negative design study and nested case–control analysis to estimate waning of natural immunity against severe COVID-19 outcomes and symptomatic reinfection using national linked datasets. We used logistic regression to estimate ORs with 95% CIs. A stratified analysis assessed immunity during the Omicron dominant period in Brazil.
We included data from the adult populations of Brazil and Scotland from 1 June 2020 to 30 April 2022.
Severe COVID-19 was defined as hospitalisation or death. Reinfection was defined as reverse-transcriptase PCR or rapid antigen test confirmed at least 120 days after primary infection.
From Brazil, we included 30 881 873 tests and 1 301 665 severe COVID-19 outcomes, and from Scotland, we included 1 520 201 tests and 7988 severe COVID-19 outcomes. Against severe outcomes, sustained protection was observed for at least 12 months after primary SARS-CoV-2 infection with little evidence of waning: 12 months postprimary infection: Brazil OR 0.12 (95% CI 0.10 to 0.14), Scotland OR 0.03 (95% CI 0.02 to 0.04). For symptomatic reinfection, Brazilian data demonstrated evidence of waning in the 12 months following primary infection, although some residual protection remained beyond 12 months: 12 months postprimary infection: OR 0.42 (95% CI 0.40 to 0.43). The greatest reduction in risk of SARS-CoV-2 infection was in individuals with hybrid immunity (history of previous infection and vaccination), with sustained protection against severe outcomes at 12 months postprimary infection. During the Omicron dominant period in Brazil, odds of symptomatic reinfection were higher and increased more quickly over time when compared with the overall study period, although protection against severe outcomes was sustained at 12 months postprimary infection (whole study: OR 0.12 (95% CI 0.10 to 0.14); Omicron phase: OR 0.15 (95% CI 0.12 to 0.19)).
Cross-national analyses demonstrate sustained protection against severe COVID-19 disease for at least 12 months following natural SARS-CoV-2 infection, with vaccination further enhancing protection. Protection against symptomatic reinfection was lower with evidence of waning, but there remained a protective effect beyond 12 months from primary infection.
Post-COVID-19 conditions (PCC) may include pulmonary sequelae, fatigue and other symptoms, but its mechanisms are not fully elucidated.
This study investigated the correlation between fatigue and the presence of pulmonary abnormalities in PCC patients with respiratory involvement 6–12 months after hospitalisation.
Cross-sectional study.
A tertiary hospital in Brazil.
315 patients, aged ≥18 years, were considered eligible based on SARS-CoV-2 infection confirmed by reverse transcription-PCR.
Pulmonary function tests (PFT), cardiopulmonary exercise tests (CPET), chest CT and hand grip were performed. The following scales were applied: Functional Assessment of Chronic Illness Therapy-Fatigue (FACIT-F) scale, Euroqol 5 Dimensions quality of life (EQ-5D) and Hospital Anxiety and Depression Scale (HADS). Participants were divided between the fatigue group (FACIT-F≤30) and the non-fatigue group (FACIT-F>30). For the statistical analysis, the primary outcome was the difference in the diffusing capacity of the lungs for carbon monoxide (DLCO) between groups. Considered secondary outcomes were differences in PFT, CPET, chest CT, hand grip, EQ-5D and HADS.
The fatigue group had 81 patients (25.7%) against 234 (74.3%). PFT and CPET showed no significant difference in DLCO and oxygen consumption peak values between groups. The fatigue group had a lower workload (mean 55.3±21.3 watts vs 66.5±23.2 watts, p=0.003), higher breathing reserve (median 41.9% (33.8–52.5) vs 37.7% (28.9–47.1), p=0.028) and lower prevalence of ground glass opacity (60.8% vs 77.7%, p=0.003) and reticulation (36.7% vs 54.9%, p=0.005) in chest CT. The fatigue group had higher anxiety (57% vs 24%, p
Fatigue in patients with PCC 6–12 months after hospitalisation is relatively common and had weak correlation with pulmonary disorders. Our results suggested fatigue could be strongly related with peripheral disorders such as reduced musculoskeletal strength or psychosocial limitations.
The prevalence of women with primary dysmenorrhoea is high and negatively impacts physical and mental health. The intense cyclic episodes of pain generate central nervous system dysfunctional processing. In this sense, strategies focused on the central nervous system are important to re-establish normal functioning. Home-based self-administered transcranial direct current stimulation (tDCS) emerges as a strategy to modulate dysfunctional brain areas and improve the symptoms. This protocol aims to evaluate the effects of home-based self-administered tDCS for pain, premenstrual symptoms, physical performance, quality of life, electroencephalography and patient global impression in women affected by primary dysmenorrhoea.
This is a single-centre, parallel, randomised, double-blinded clinical trial protocol. 40 women affected by primary dysmenorrhoea will be randomised into two groups (active-tDCS or sham-tDCS). Then, 20 consecutive sessions of home-based self-administered tDCS will be performed. The assessments will occur at five time points: baseline, after the 20th sessions, at the first, second and third cycles after tDCS interventions (follow-ups). Primary outcome will be pain according to visual analogue scale. Quality of life, premenstrual symptoms screening, depression, anxiety, physical performance, electroencephalography and participants’ satisfaction will be the secondary outcomes. A mixed analysis of variance will calculate the effect of stimulation.
The study was approved by the ethics committee of the Federal University of Rio Grande do Norte (No. 6.037.756) and registered in the Brazilian Clinical Trials Registry (n° RBR-747k8vb). Participants may withdraw at any time without penalty. Free support will be available from the lead researcher if needed. All procedures will follow Good Clinical Practice and international ethical standards.
To map interventions in the sexuality of men with stomas.
Scoping review, following JBI and PRISMA-ScR guidelines to report results.
Databases consulted were PubMed, via National Library of Medicine, Latin American and Caribbean Health Sciences Literature, Web of Science, Scopus, Embase, Scientific Electronic Library Online, Brazilian Electronic Library of Thesis and Dissertations, CAPES Catalogue of Thesis and Dissertations and Open Access Scientific Repository of Portugal. Texts were read by independent reviewers, with no time or language restrictions.
The final sample included 10 studies. Data were synthesised and grouped for its similarity to approach models, preoperative orientations, self-care promotion, collecting pouch hygiene and safety, sexual health discussion and education, construction of bonds and sexual function evaluation.
Interventions in the sexuality of men with stomas included adherence to models for approaching sexuality, focusing on the permission and coparticipation of the patient, open conversations on the topic, self-care promotion, collecting pouch hygiene and safety, encouragement to the creation of bonds, sexual function evaluation in pre- and postoperative periods and individual and/or collective sexual health education.
This study contributes to the sexuality of men with stomas. It identified recommendations to approach and conduct the topic at hand, addressing the rehabilitation process since the surgery to place the stoma is considered.
This study addressed scientific literature on the sexuality of men with stomas. Most were from Europe and results demonstrated a gap in knowledge. This research will impact the stoma therapy research, affecting teams involved in the care to men with stomas, encouraging reflections on the sexuality of these patients.
This study complies with the PRISMA-ScR.
There was no patient or public contribution.
The protocol of this scoping review was registered in the Open Science Framework, registered under DOI 10.17605/OSF.IO/X9DSC. It can be accessed through the following link: https://osf.io/x9dsc/?view_only=a9c62ef6c11f44499f7b2bfe1fe379f9.
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. In the third phase, the usability of ESTOMABOT was assessed with the participation of surgical clinic nurses, patients with intestinal elimination ostomies, and information technology professionals, using the System Usability Scale. The ESTOMABOT content reached excellent criteria of adequacy, with percentages of agreement equal to or greater than 90%, which were considered adequate, relevant, and representative. The evaluation of the content validity of the script using the scale content validity index/average proportion method reached a result above 0.90, and the Fleiss κ was excellent (P Objetivo principal: Describir las experiencias de las madres que vivieron accidentes domésticos que involucraron a sus hijos, a la luz del Modelo de Adaptación de Roy. Método: Estudio cualitativo. Los datos fueron recolectados a través de entrevistas y sometidos a la técnica de análisis de contenido. Se utilizó como marco teórico el Modelo de Adaptación de Roy. Resultados principales: Participaron 17 madres, cuyos discursos fueron agrupados en tres categorías: enfrentar el desafío de salvar la vida de su hijo; reconocer el momento de (falta de) cuidado de su hijo; y aprender de sus errores. Conclusión principal: Se identificaron madres con dificultades para reconocer sus errores y posibles negligencias, que les atribuyeron la responsabilidad del accidente al hijo. Los enfermeros, cuando basan su práctica clínica en el Modelo de Adaptación de Roy, deben prestarles atención a las necesidades emocionales de los sistemas adaptativos de los involucrados.
Objetivo: Describir el abordaje del dolor en pacientes con insuficiencia cardíaca, según lo encontrado en la literatura. Metodología: se realizó una investigación bibliográfica con búsqueda en las bases de datos MEDLINE, PUBMED, LILACS, CUIDEN, CINAHL, utilizando los descriptores Manejo del dolor, insuficiencia cardíaca y Automedicación, junto con el operador booleano AND. Se seleccionaron artículos en portugués, publicados entre 2010 y 2020, que respondieron al objetivo de la investigación. Las publicaciones duplicadas fueron ex-cluidas al final de las búsquedas en cada base de datos, obteniendo una muestra final de 31 artículos. Resultados: se encontró que el dolor se puede clasificar: 1) Según su naturaleza en nociceptivo (que puede ser somático y visceral), neuropático y mixto) y 2) Según su intensidad: en agudo, crónico o recurrente. Por lo tanto, el abordaje del dolor dependerá de su origen y de la necesidad del individuo.
Objetivo principal: revisar las evidencias disponibles en la literatura sobre la prematuridad y sus especificidades para el cuidado. Metodología: revisión integradora en la Base de Datos de Literatura de América Latina y del Caribe en Ciencias de la Salud (Lilacs); Índice Acumulativo de Enfermería y Literatura de la Salud Aliada (Cinahl); Biblioteca Nacional de Medicina (NLM-PubMed); Base de Datos de Enfermería (BDEnf); con descriptores: Familia, Prematuridad, Comportamiento maternal, Cuidado del bebé. Resultados principales: Fueron encontrados 11 artículos en Lilacs; 3 en el Cinahl; 7 en PubMed; y 2 en BDEnf, totalizando 26 artículos. Se realizó una lectura comprensiva y un análisis crítico del contenido de los artículos. El proceso comparativo constante se fue realizado para organizar y consolidar los datos en categorías, utilizando técnicas de investigación cualitativas. Fueron encontradas tres categorías: Prematuridad; Atención materna en el domicilio; Impacto del nacimiento prematuro en la familia. Conclusión principal: el bebé prematuro es un niño de alto riesgo y necesita de un cuidado especial por parte de la madre para un periodo prolongado. Se requiere una atención especializada de los profesionales de la salud y de la familia para su desarrollo saludable.
FreshRSS 