Alveolar macrophages and monocyte subpopulations during Plasmodium berghei NK65 experimental malaria-associated acute respiratory distress syndrome.

Alveolar macrophages (AM) and monocytes (MO) are myeloid cells that play a substantial role in the development and establishment of the innate and adaptive immune response. These cells are crucial for host defense against various pathogens, but their role in malaria is poorly understood. Here, we characterize the dynamics of AMs and recruited leukocytes subpopulations in the airways during experimental Plasmodium berghei NK65-NY (PbNK65). We show that PbNK65 infection induces an increased pulmonary vascular permeability that provides Ly6Clow MOs, neutrophils (NEU), CD4+ and CD8+ lymphocytes in the airways. This inflammatory environment resulted in an increase in the population and alteration of the activation state of the AMs. Taken together, the data presented provide new insights into airway inflammation associated with pulmonary malaria.

Sexual function, health functionality, and quality of life in females with pulmonary arterial hypertension: a cross-sectional study.

BACKGROUND: Pulmonary arterial hypertension (PAH) can have several consequences on sexual function, which can lead to worsened quality of life. AIM: The study sought to assess sexual function and its association with health functionality and quality of life in females with PAH. METHODS: A descriptive cross-sectional study was carried out in pulmonary circulation outpatient clinics from January 2022 to March 2023 in females diagnosed with pulmonary hypertension. Assessment was carried out through the application of the Female Sexual Function Index, the 36-item World Health Organization Disability Assessment Schedule, and the Medical Outcome Study 36-Item Short Form Survey. OUTCOMES: Data were analyzed using SPSS version 22.0 and JASP, and Spearman's correlation tests were applied between the instruments, with a P value <.05 considered significant. RESULTS: A total of 91 females were assessed. It was identified that 90.1% of females had sexual dysfunction, with worse scores in females with sexual dysfunction in the domains of satisfaction, arousal, and desire, with average health functionality and quality of life. There were significant correlations between the domains of mobility, getting along, life activities, and the overall functionality score with some domains of sexual function, especially arousal and satisfaction. We found significant correlations between some domains of quality-of-life assessment with the domains of desire, arousal, and satisfaction, and with the overall score of sexual function assessment, as well as strong correlations between health functionality and quality of life. CLINICAL IMPLICATION: The data reinforce the need for rehabilitation programs and social support for this population. STRENGTHS AND LIMITATIONS: This is one of the few studies to evaluate sexual function, quality of life, and health functionality in women with PAH. Due to limitations in data collection, we were unable to assess certain factors such as hormone levels and a history of sexual abuse. CONCLUSION: We identified a high prevalence of sexual dysfunction in females with PAH with mild functional impairment and a moderate quality-of-life score with correlations between sexual function, health functionality, and quality of life.

Development and content validity of educational videos on self-management of fluid restriction and thirst for individuals with heart failure.

OBJECTIVE: To create and evaluate the content validity of educational videos on self-management of fluid restriction and thirst for individuals with heart failure (HF). METHOD: A psychometric study was conducted in three stages: (1) an integrative literature review to identify strategies for self-management of fluid restriction and thirst by individuals with HF; (2) creation of animated videos about strategies for self-management of fluid restriction and thirst; and (3) analysis of the content validity of the educational videos by 11 experts. For each criterion, the content validity ratio (CVR) was calculated; it was considered adequate when <0.636. Suggestions were evaluated by the researchers, and the videos were modified. RESULTS: Ten scripts and videos were created, averaging 30 s each. The videos' contents were based on 11 studies retrieved from the review and one specialized website. The videos were evaluated by experts, and adjustments were made when CVR < 0.636 and when allowed by the video production platform. CONCLUSIONS: Educational videos were developed and have satisfactory content validity evidence according to expert opinions. IMPLICATIONS FOR NURSING PRACTICE: These videos are expected to be used as educational strategies in clinical practice to prevent episodes of decompensation due to excessive fluid volume.

Risk for imbalanced blood pressure pattern among incarcerated women: Middle-Range Theory.

OBJECTIVES: to develop a Middle-Range Theory for the Risk for imbalanced blood pressure pattern among incarcerated women. METHODS: theoretical development study to obtain the theoretical-causal validity of the Nursing Diagnosis Risk for unstable blood pressure. The Middle-Range Theory was developed according to six stages: establishment of the approach to developing the theory; definition of the conceptual models to be later analyzed; definition of the main conceptions; a pictorial diagram; propositions; causal relationships and evidence for practice. RESULTS: two attributes and 20 antecedents related to imbalanced blood pressure were identified, a pictorial diagram was developed, and nine theoretical propositions were presented. CONCLUSIONS: the theory developed here favors the diagnostic reasoning of nurses and contributes to planning actions to promote the cardiovascular health of incarcerated women. A new proposition for the diagnosis of Risk for unstable blood pressure was also structured with a new title, definition, and etiological factors.

Biocompatibility, bioactivity, porosity, and sealer/dentin interface of bioceramic ready-to-use sealers using a dentin-tube model.

This study evaluated the biocompatibility, bioactivity, porosity, and sealer/dentin interface of Sealer Plus BC (SP), Bio-C Sealer (BIOC), TotalFill BC Sealer (TF), and AH Plus (AHP). Dentin tubes filled with the sealers and empty tubes (control group) were implanted in the subcutaneous tissue of rats for different periods (n = 6 per group/period). Number of inflammatory cells (ICs), capsule thickness, von Kossa reaction, interleukin-6 (IL-6) and osteocalcin (OCN) were evaluated. Porosity and voids in the interface dentin/sealers were assessed by micro-computed tomography. The data were submitted to ANOVA/Tukey's tests (α = 0.05). Greater capsule thickness, ICs and IL-6 immunolabeling cells were observed in AHP. No significant difference in thickness of capsule, ICs, and IL-6- immunolabeling cells was detected between SP and TF, in all periods, and after 30 and 60 days between all groups. At 60 days all groups had reduction in capsule thickness, ICs and IL-6 immunolabeling cells. Von Kossa-positive and birefringent structures were observed in the capsules around the sealers. BIOC, SP, and TF exhibited OCN-immunolabeling cells. All sealers had porosity values below 5%, besides low and similar interface voids. BIOC, SP and TF are biocompatible, bioactive, and have low porosity and voids. The dentin-tube model used is an alternative for evaluating bioceramic materials.

Sexual counseling for people with acute coronary syndrome: educational video development.

OBJECTIVE: to assess validity evidence of an educational video on safe sexual activity after acute coronary syndrome. METHOD: study in three phases: video development; content validity analysis by 11 experts; and analysis of validity based on response processes by seven people with coronary disease. The content validity ratio (CVR) was calculated with critical values for the second phase of 0.63 and for the third of 1.0. RESULTS: the video addressed the importance of resuming sexual activity and positions that consume less energy, clinical warning signs, the importance of adhering to treatment and a welcoming environment for sexual practice. A CVR above the critical value was obtained with a total of 4 minutes and 41 seconds. CONCLUSION: the educational video brings together adequate content validity evidence and can be used as a tool for patients after acute coronary syndrome.

Nasal filling guided by high frequency ultrasound: Reducing risks.

BACKGROUND: Given the significant increase in the quantity of cosmetic procedures utilizing hyaluronic acid fillers, including in the nasal region, the initial evaluation of patients using high frequency ultrasound becomes a crucial instrument in evaluating and handling nonsurgical rhinoplasty. AIMS: The aim of this article is to introduce an assessment methodology for nasal filling guided by high frequency ultrasound. PATIENTS/METHODS: A prospective and single-center study was conducted with 12 Latin American patients. The patients underwent nasal filling with hyaluronic acid following high power ultrasound mapping. RESULTS AND CONCLUSIONS: In the evaluation of the GAIS scale, all patients reported improvement with the treatment. No infections, nodules, ischemia, or other relevant adverse effects were noted. Real-time ultrasound-guided filler techniques have been developed to reduce the risk of vascular compromise, confirming the distribution pattern of blood vessels. It's also crucial to visualize the cannula at the same moment as the vessels, even if the previous vascular mapping was performed. Therefore, the utilization of high frequency ultrasound can act as a pivotal tool in augmenting procedure safety.

Evidence of content validity of the nursing outcome "sexual functioning" from the nursing outcome classification.

PURPOSE: To evaluate the content validity evidence of the nursing outcome "sexual functioning" from the Nursing Outcomes Classification (NOC). METHODS: A multi-method study, including a methodological study analyzing the content validity evidence of the NOC outcome and sexual functioning, and a quantitative, descriptive, cross-sectional study. In the first phase, a literature review was conducted to map and identify clinical indicators associated with sexual functioning to construct the conceptual (CD) and operational definitions (ODs) of each outcome indicator. In the second phase, experts assessed the CD and OD for clarity, theoretical relevance, and theoretical pertinence. The critical validity ratio (CVR) was calculated for each indicator. In the third phase, a pilot test of sexual functioning measurement was conducted with 33 patients hospitalized for coronary artery disease. Internal consistency was calculated through Cronbach's alpha. RESULTS: The CD and OD were constructed based on 120 articles and analyzed by 13 experts; four rounds were required to achieve the critical CVR in each phase. In the pilot test, the nursing outcome achieved a Cronbach's alpha of 0.95, and the mean assessment time was 26 min. Indicators with the highest mean scores were related to knowledge of personal needs and capabilities and comfort with one's own body. CONCLUSION: The CD and OD developed for the NOC outcome, sexual functioning, had adequate evidence of content validity. The outcome content has high internal consistency. Further studies on the validity of the nursing outcome should be conducted to increase its validity. IMPLICATIONS FOR PRACTICE: The nursing outcome, sexual functioning, can be a tool used by nurses to evaluate the effect of nursing education and interventions on sexual functioning in the adult population.

PURPOSE: Desenvolver e avaliar as evidências de validade de conteúdo das definições conceituais e operacionais dos indicadores do resultado de Enfermagem "Funcionamento Sexual" da Classificação dos Resultados de Enfermagem (NOC). METHODS: Estudo metodológico dividido em três fases. Na primeira fase foi realizada uma revisão de literatura para mapear e identificar os indicadores clínicos associados ao funcionamento sexual para a construção das definições conceituais (DC) e operacionais (DO) de cada indicador do resultado de enfermagem em estudo. Na segunda fase foi realizada a análise das evidências de validade de conteúdo das DC e DO dos indicadores por meio da avaliação pelos especialistas. Na terceira fase foi realizada um pré­teste do resultado de enfermagem em 33 pacientes hospitalizados por doença arterial coronariana. RESULTS: Foram selecionados 120 artigos que serviram de base para a construção das definições conceituais e operacionais analisadas por 13 especialistas, necessário quatro rodadas para alcançar o coeficiente de validade de conteúdo crítico estabelecido para o número de juízes respondentes. pré­testeo resultado de enfermagem estudado um alfa de Cronbach de 0,95 e o tempo médio de aplicação foi de 26 minutos. Os indicadores com maiores médias estavam relacionados ao conhecimento das necessidades e capacidade pessoais e conforto com o próprio corpo. CONCLUSION: As DC e DO dos indicadores do resultado "Funcionamento Sexual" da NOC desenvolvidas apresentaram adequadas evidências de validade de conteúdo. O pré­teste o apresentou elevado nível de consistência interna. Outros estudos de evidências de validade do resultado estudado devem ser realizados visando o aumento no nível de validade do resultado. IMPLICATION FOR PRACTICE: O resultado estudado pode ser uma ferramenta utilizada pelo enfermeiro para avaliação do funcionamento sexual na população adulta visando a individualização das orientações e intervenções de enfermagem.

Ascaris Mouse Model Protocols: Advancing Research on Larval Ascariasis Biology.

Ascariasis, caused by both Ascaris lumbricoides and Ascaris suum, is the most prevalent parasitic disease worldwide, affecting both human and porcine populations. However, due to the difficulties of assessing the early events of infection in humans, most studies of human ascariasis have been restricted to the chronic intestinal phase. Therefore, the Ascaris mouse model has become a fundamental tool for investigating the immunobiology and pathogenesis of the early infection stage referred to as larval ascariasis because of the model's practicality and ability to replicate the natural processes involved. The Ascaris mouse model has been widely used to explore factors such as infection resistance/susceptibility, liver inflammation, lung immune-mediated pathology, and co-infections and, notably, as a pivotal element in preclinical vaccine trials. Exploring the immunobiology of larval ascariasis may offer new insights into disease development and provide a substantial understanding of key components that trigger a protective immune response. This article focuses on creating a comprehensive guide for conducting Ascaris experimental infections in the laboratory as a foundation for future research efforts. © 2024 Wiley Periodicals LLC. Basic Protocol 1: Acquisition and embryonation of Ascaris suum eggs from adult females Alternate Protocol: Cleaning and purification of Ascaris suum from female A. suum uteri Basic Protocol 2: Preparation of Ascaris suum eggs and murine infection Basic Protocol 3: Measurement of larval burden and Ascaris-larva-induced pathogenesis Basic Protocol 4: In vitro hatching and purification of Ascaris L3 larvae Support Protocol: Preparation of crude antigen from Ascaris infectious stages Basic Protocol 5: Ultrastructure-expansion microscopy (U-ExM) of Ascaris suum larval stages.

Concept analysis of "Insufficient health literacy" in older adults and refinement of a diagnosis proposal.

PURPOSE: This study aims to conduct a thorough analysis of the concept of insufficient health literacy (IHL) in older adults and to refine a nursing diagnosis proposal while considering the specific characteristics of this demographic. METHODS: A comprehensive concept analysis was undertaken using Walker & Avant's method as a framework. FINDINGS: A systematic search across seventeen databases yielded 29 relevant studies for inclusion. Through analysis, we identified 15 antecedents, 3 attributes, and 7 consequents associated with IHL in older adults. CONCLUSIONS: The concept analysis brought clarity to the understanding of IHL within older adults, facilitating the refinement of a diagnosis proposal. This process was instrumental in establishing a diagnostic structure that accounts for the unique needs and challenges faced by older adults. IMPLICATIONS FOR NURSING PRACTICE: The structured diagnosis derived from the concept analysis provides a solid theoretical foundation for nurses specializing in Gerontology. By tailoring care interventions to address the specific requirements of older adults, this framework enhances the quality of nursing practice and contributes to improved patient outcomes in geriatric care settings.

OBJETIVO: Este estudo tem como objetivo realizar uma análise detalhada do conceito de Letramento em saúde insuficiente na população idosa e refinar uma proposta de diagnóstico de enfermagem, levando em consideração as características específicas desse público. MÉTODOS: Foi realizada uma análise conceitual abrangente utilizando o método de Walker & Avant. RESULTADOS: Uma busca sistemática em dezessete bases de dados resultou em 29 estudos relevantes para inclusão. Através da análise, identificamos quinze antecedentes, três atributos e sete consequentes associados ao Letramento em saúde insuficiente na população idosa. CONCLUSÕES: A análise conceitual trouxe clareza à compreensão do Letramento em saúde insuficiente na população idosa, facilitando o refinamento de uma proposta de diagnóstico. Esse processo foi fundamental para estabelecer uma estrutura diagnóstica que considera as necessidades e desafios únicos enfrentados pelos idosos. IMPLICAÇÕES PARA A PRÁTICA DE ENFERMAGEM: O diagnóstico estruturado derivado da análise conceitual fornece uma base teórica sólida para enfermeiros especializados em Gerontologia. Ao adaptar intervenções de cuidados para atender aos requisitos específicos dos idosos, esse framework melhora a qualidade da prática de enfermagem e contribui para resultados de pacientes aprimorados em ambientes de cuidados geriátricos.

Clinical validity of the nursing diagnosis risk for unstable blood glucose level in persons with type 2 diabetes mellitus: A case-control study.

OBJECTIVE: To assess clinical-causal validity evidence of the nursing diagnosis, risk for unstable blood glucose level (00179), in individuals with type 2 diabetes mellitus. METHODS: A case-control study was conducted in 5 primary healthcare units, involving 107 subjects with type 2 diabetes mellitus, 60 in the case group and 47 in the control group. Causality was determined by the association between sociodemographic and clinical factors, risk factors related to the nursing diagnosis, and the occurrence of unstable blood glucose level. An association was considered when the risk factor had a p-value of <0.05 and odds ratio >1. RESULTS: Risk factors, such as stress, inadequate physical activity, and low adherence to therapeutic regimen, were prevalent in the sample. Time since diagnosis between 1-5 and 6-10 years, multiracial ethnicity, and the risk factor of low adherence to therapeutic regimen increased the likelihood of the outcome. Completion of high school education was identified as a protective factor. CONCLUSIONS: The clinical validation of the nursing diagnosis, risk for unstable blood glucose level, has been successfully established, revealing a clear association between sociodemographic and clinical factors and the risk factors inherent to the nursing diagnosis. IMPLICATIONS FOR NURSING PRACTICE: The results contribute to advancing scientific knowledge related to nursing education, research, and practice and provide support for the evolution of nursing care processes for individuals with type 2 diabetes mellitus.

OBJETIVO: Avaliar a evidência de validade clínico­causal do diagnóstico de enfermagem, risco para nível instável de glicose no sangue (00179), em indivíduos com diabetes mellitus tipo 2. MÉTODO: Foi realizado um estudo caso­controle em cinco unidades básicas de saúde, envolvendo 107 indivíduos com diabetes mellitus tipo 2, 60 no grupo caso e 47 no grupo controle. A causalidade foi determinada pela associação entre fatores sociodemográficos e clínicos, fatores de risco relacionados ao diagnóstico de enfermagem e a ocorrência de nível instável de glicose no sangue. Uma associação foi considerada quando o fator de risco tinha um valor de p < 0.05 e odds ratio > 1. RESULTADOS: Fatores de risco como estresse, atividade física inadequada e baixa adesão ao regime terapêutico foram predominantes na amostra. O tempo desde o diagnóstico entre 1 e 5 anos e 6 a 10 anos, a etnia parda e o fator de risco baixa adesão ao regime terapêutico aumentaram a probabilidade do resultado. A conclusão do ensino médio foi identificada como um fator de proteção. CONCLUSÕES: A validação clínica do diagnóstico de enfermagem, risco para nível instável de glicose no sangue, foi estabelecida com sucesso, revelando uma clara associação entre fatores sociodemográficos e clínicos e os fatores de risco inerentes ao diagnóstico de enfermagem. IMPLICAÇÕES PARA A PRÁTICA DE ENFERMAGEM: Os resultados contribuem para o avanço do conhecimento científico relacionado à educação, à pesquisa e à prática de enfermagem e fornecem suporte para a evolução dos processos de cuidados de enfermagem para indivíduos com diabetes.

Characteristics associated with the intention to complete advance directives and end-of-life preferences in Brazilians with heart failure.

OBJECTIVE: To identify characteristics associated with an intention to complete advance directives (ADs) and end-of-life treatment preferences for outpatients with heart failure (HF). METHODS: A cross-sectional, analytical study. Sociodemographic and clinical data were collected from 108 patients with HF in an outpatient clinic in São Paulo, SP, Brazil. Quality of life (QoL) was assessed using the Minnesota Living with Heart Failure Questionnaire; knowledge about HF and the intention to complete ADs were assessed using a script. The relationships among variables were assessed through the chi-square and Mann-Whitney tests, with p < 0.05 considered significant. RESULTS: The intention to complete ADs was significantly associated with reporting adherence to pharmacological recommendations (99% vs. 88.1%, p = 0.02), worse QoL (29.7 ± 18.2 vs. 20.9 ± 11.0; p = 0.0336), perceived knowledge about HF (89.7% vs. 63.6%, p = 0.0495), not wishing the healthcare providers would decide about treatment (27.3% vs. 2.15, p = 0.0026), and considering ADs useful (91.8% vs. 27.3%, p < 0.001). End-of-life treatment preferences included living as long as possible (50.5%), not being sedated (37.1%), and staying close to family and friends for as long as possible (32.0%). CONCLUSIONS: Characteristics associated with an intention to complete ADs and end-of-life treatment preferences were identified in patients with HF. IMPLICATIONS FOR NURSING PRACTICE: These results can help facilitate patients' completion of their ADs or activate their intention to maximize opportunities to exercise autonomy.

OBJETIVO: Identificar características associadas à intenção de completar diretivas antecipadas de vontade (DAV) e preferências de tratamento no final da vida de pacientes ambulatoriais com insuficiência cardíaca (IC). MÉTODOS: Estudo analítico, transversal. Foram coletados dados sociodemográficos e clínicos de 108 pacientes com IC atendidos em um ambulatório de São Paulo­SP, Brasil. A qualidade de vida (QV) foi avaliada por meio do Minnesota Living with Heart Failure Questionnaire, o conhecimento sobre IC e a intenção de completar as DAV foram avaliados por meio de um roteiro. As relações entre as variáveis foram avaliadas por meio dos testes qui­quadrado e Mann­Whitney, sendo considerado significativo p < 0,05. RESULTADOS: A intenção de completar as DAV foi significativamente associada ao relato de adesão às recomendações farmacológicas (99% vs 88,1%, p = 0,02), pior QV (29,7 ± 18,2 vs 20,9 ± 11,0; p = 0,0336), conhecimento percebido sobre IC (89,7% vs 63,6%, p = 0,0495), não desejar que os profissionais de saúde decidissem sobre o tratamento (27,3% vs 2,15, p = 0,0026) e considerar as DAV úteis (91,8% vs 27,3%, p < 0,001). As preferências de tratamento no final da vida incluíam viver o maior tempo possível (50,5%), não ser sedado (37,1%) e permanecer perto da família e amigos o maior tempo possível (32,0%). CONCLUSÕES: Foram identificadas características associadas à intenção de completar DAV e preferências de tratamento no final da vida em pacientes com IC. IMPLICAÇÕES PARA A PRÁTICA DE ENFERMAGEM: Estes resultados podem ajudar a facilitar a conclusão das suas DAV pelos pacientes ou ativar a sua intenção de maximizar as oportunidades de exercício da autonomia.

Characteristics associated with the intention to complete advance directives and end-of-life preferences in Brazilians with heart failure

OBJECTIVE: To identify characteristics associated with an intention to complete advance directives (ADs) and end-of-life treatment preferences for outpatients with heart failure (HF). METHODS: A cross-sectional, analytical study. Sociodemographic and clinical data were collected from 108 patients with HF in an outpatient clinic in São Paulo, SP, Brazil. Quality of life (QoL) was assessed using the Minnesota Living with Heart Failure Questionnaire; knowledge about HF and the intention to complete ADs were assessed using a script. The relationships among variables were assessed through the chi-square and Mann-Whitney tests, with p < 0.05 considered significant. RESULTS: The intention to complete ADs was significantly associated with reporting adherence to pharmacological recommendations (99% vs. 88.1%, p = 0.02), worse QoL (29.7 ± 18.2 vs. 20.9 ± 11.0; p = 0.0336), perceived knowledge about HF (89.7% vs. 63.6%, p = 0.0495), not wishing the healthcare providers would decide about treatment (27.3% vs. 2.15, p = 0.0026), and considering ADs useful (91.8% vs. 27.3%, p < 0.001). End-of-life treatment preferences included living as long as possible (50.5%), not being sedated (37.1%), and staying close to family and friends for as long as possible (32.0%). CONCLUSIONS: Characteristics associated with an intention to complete ADs and end-of-life treatment preferences were identified in patients with HF.

Enteropathogenic Escherichia coli modulates the virulence and pathogenicity of Entamoeba dispar.

Amoebiasis is a disease caused by Entamoeba histolytica, affecting the large intestine of humans and occasionally leading to extra-intestinal lesions. Entamoeba dispar is another amoeba species considered commensal, although it has been identified in patients presenting with dysenteric and nondysenteric colitis, as well as amoebic liver abscess. Amoebic virulence factors are essential for the invasion and development of lesions. There is evidence showing that the association of enterobacteria with trophozoites contributes to increased gene expression of amoebic virulence factors. Enteropathogenic Escherichia coli is an important bacterium causing diarrhea, with high incidence rates in the world population, allowing it to interact with Entamoeba sp. in the same host. In this context, this study aims to evaluate the influence of enteropathogenic Escherichia coli on ACFN and ADO Entamoeba dispar strains by quantifying the gene expression of virulence factors, including galactose/N-acetyl-D-galactosamine-binding lectin, cysteine proteinase 2, and amoebapores A and C. Additionally, the study assesses the progression and morphological aspect of amoebic liver abscess and the profile of inflammatory cells. Our results demonstrated that the interaction between EPEC and ACFN Entamoeba dispar strains was able to increase the gene expression of virulence factors, as well as the lesion area and the activity of the inflammatory infiltrate. However, the association with the ADO strain did not influence the gene expression of virulence factors. Together, our findings indicate that the interaction between EPEC, ACFN, and ADO Entamoeba dispar strains resulted in differences in vitro and in vivo gene expression of Gal/GalNAc-binding lectin and CP2, in enzymatic activities of MPO, NAG, and EPO, and consequently, in the ability to cause lesions.

Digital Health Literacy Instrument: Brazilian Version-Cross-Cultural Adaptation and Content Validity for Individuals With Heart Failure.

Background and purpose: Assessment of digital health literacy should be a major concern for healthcare providers. We aimed to translate and adapt the Digital Health Literacy (DHL) Instrument into Brazilian Portuguese and examine the content validity for individuals with heart failure (HF). Methods: The instrument was translated, back translated, and evaluated by a panel of six experts regarding linguistic equivalences. An agreement analysis was performed, with values ≥80% considered acceptable. The experts then evaluated clarity, theoretical relevance, and practical pertinence. The content validity index (CVI) was calculated for each item. A CVI ≥.83 was considered acceptable. The expert's opinions were also evaluated through the modified kappa coefficient for content validity studies. Values >.74 were considered excellent. The content validity ratio (CVR) was also calculated. A critical value of CVR of 1.00 was determined. Cognitive testing (understanding the meaning of each item and their respective answers) was performed with 33 individuals with HF. Results: The adapted version obtained an agreement of ≥83.3% for each item on linguistic equivalences. Total CVI was ≥0.83, kappa values for each item were >.74, and the CVR values were 1.00 for all items. After two rounds of evaluation, all patients were able to understand the items and response scale. Conclusions: The Brazilian version has satisfactory evidence of linguistic and content validity to measure DHL in patients with HF. Additional psychometric properties will be tested in the country.

Evidence of content validity of the nursing diagnosis risk for unstable blood pressure.

PURPOSE: To analyze evidence of content validity of the nursing diagnosis (ND) Risk for Unstable Blood Pressure in incarcerated women.  METHOD: A methodological study assessing the content validity of an ND, was performed in Brazil, between June and September 2022, with 49 nurses as experts. The label, definition, and relevance of the 19 risk factors of the ND Risk for Unstable Blood Pressure were appraised. Based on the predictive diversity model, the content validity index (CVI) and respective 95% confidence intervals were calculated for each risk factor. A CVI ≥ 0.8 was considered adequate evidence of content validity. FINDINGS: The label and the definition of the diagnosis was reformulated. The relevance of 19 etiological factors showed a CVI ≥ 0.8. According to the recommendation of the panel of experts, one of the etiological factors was split in two and two label of etiological factors were changed. CONCLUSIONS: A new label (Risk for Imbalanced Blood Pressure), new definition, and 20 etiological factors (11 risk factors, five associated conditions, and four at-risk populations) of the ND Risk for Unstable Blood Pressure in incarcerated women were considered valid. IMPLICATIONS FOR NURSING PRACTICE: NANDA-I accepted the proposal for this nursing diagnosis; hence this study contributed to updating the classification based on scientific evidence. This evidence will favor diagnostic reasoning and recognition of the diagnosis during clinical assessment, and support studies assessing the clinical validity of these elements in incarcerated women.

OBJETIVO: Analisar evidências de validade de conteúdo do diagnóstico de enfermagem (DE) Risco de Pressão Arterial Instável em mulheres encarceradas. MÉTODO: Estudo metodológico de validade de conteúdo de um DE, realizado no Brasil, entre junho e setembro de 2022, tendo 49 enfermeiros como experts. Foram avaliados o título, a definição e a relevância dos 19 fatores de risco do DE Risco de Pressão Arterial Instável. Com base no modelo de diversidade preditiva, foram calculados o Índice de Validade de Conteúdo (IVC) e respectivos intervalos de confiança de 95% para cada fator de risco. IVC ≥ 0,8 foi considerado evidência adequada de validade de conteúdo. RESULTADOS: A relevância de 19 fatores etiológicos mostrou IVC ≥ 0,8. De acordo com a recomendação do painel de experts, um dos fatores etiológicos foi dividido em dois e dois rótulos de fatores etiológicos foram alterados. O título e a definição do diagnóstico foram reformulados. CONCLUSÃO: Foram considerados válidos um novo título (Risco de pressão arterial desequilibrada), nova definição e 20 fatores etiológicos (11 fatores de risco, cinco condições associadas e quatro populações de risco) do DE Risco de Pressão Arterial Instável em mulheres encarceradas. IMPLICAÇÕES PARA A PRÁTICA DE ENFERMAGEM: A NANDA-I aceitou a proposta deste diagnóstico de enfermagem; portanto, este estudo contribuiu para a atualização da classificação baseada em evidências científicas. Essas evidências favorecerão o raciocínio diagnóstico e o reconhecimento do diagnóstico durante a avaliação clínica, além de subsidiar estudos que avaliem a validade clínica desses elementos em mulheres encarceradas.

Evaluation of reference genes for gene expression analysis by real-time quantitative PCR (qPCR) in different tissues from mice infected by Ascaris suum.

Human ascariasis is the most prevalent helminth infection, affecting 445 million people worldwide. To better understand the impact of the immune system on the pathophysiology of individuals infected with Ascaris suum, mice have been used as experimental models. The RT-qPCR technique is a critical auxiliary tool of investigation used to quantify mRNA levels. However, proper normalization using reference genes is essential to ensure reliable outcomes to avoid analytical errors and false results. Despite the importance of reference genes for experimental A. suum infection studies, no specific reference genes have been identified yet. Therefore, we conducted a study to assess five potential reference genes (GAPDH, 18s, ACTB, B2M, and HPRT1) in different tissues (liver, lungs, small and large intestines) affected by A. suum larval migration in C57BL/6j mice. Tissue collection was carried out to analyze parasite burden and confirm the presence of larvae during the peak of migration in each tissue. Upon confirmation, we analyzed different genes in the tissues and found no common gene with stable expression. Our results highlight the importance of analyzing different genes and using different software programs to ensure reliable relative expression results. Based on our findings, B2M was ranked as the ideal reference gene for the liver, while 18S was the most stable gene in the lung and small intestine. ACTB, or a combination of ACTB with GAPDH, was deemed suitable as reference genes for the large intestine due to their stable expression and less variation between the control and infected groups. To further demonstrate the impact of using different reference genes, we normalized the expression of a chemokine gene (CXCL9) in all tissues. Significant differences in CXCL9 expression levels were observed between different groups in all tissues except for the large intestine. This underscores the importance of selecting appropriate reference genes to avoid overestimating target gene expression levels and encountering normalization-related issues that can lead to false results. In conclusion, our study highlights the significance of using reliable reference genes for accurate RT-qPCR analysis, especially in the context of A. suum infection studies in different tissues. Proper normalization is crucial to ensure the validity of gene expression data and avoid potential pitfalls in interpreting results.

Bioactive potential of Bio-C Temp demonstrated by systemic mineralization markers and immunoexpression of bone proteins in the rat connective tissue.

Intracanal medications are used in endodontic treatment due to their antibacterial activity and ability to induce the periapical repair. Among the intracanal medications, the Calen (CAL; SS. White, Brazil) is a calcium hydroxide-based medication that provides an alkaline pH and releases calcium, exerting an antimicrobial activity. Bio-C Temp (BIO; Angelus, Brazil), a ready-to-use bioceramic intracanal medication, was designed to stimulate the mineralized tissues formation. Here, we investigated the bioactive potential of BIO in comparison to the CAL in the rat subcutaneous. Polyethylene tubes filled with medications, and empty tubes (control group, CG) were implanted in the subcutaneous tissue of rats. After 7, 15, 30 and 60 days, the blood was collected for calcium (Ca+2) and alkaline phosphatase (ALP) measurement, and the capsules around the implants were processed for morphological analyses. The data were submitted to two-way ANOVA and Tukey test (p < 0.05). At 7, 15 and 30 days, the ALP level was grater in BIO and CAL than in CG (p < 0.0001). At 7 and 15 days, greater Ca+2 level was seen in the serum of CAL samples. From 7 to 60 days, an increase in the number of fibroblasts, osteocalcin- and osteopontin-immunolabelled cells was observed in BIO and CAL groups (p < 0.0001). In all periods, BIO and CAL specimens showed von Kossa-positive structures. Moreover, ultrastructural analysis revealed globules of mineralization in the capsules around the BIO and CAL specimens. Thus Bio-C Temp caused an increase in the ALP, osteocalcin and osteopontin, which may have allowed the formation of calcite, suggesting bioactive potential.

Development and validation of a case study to aid in the diagnostic reasoning of nursing students and nurses.

PURPOSE: The aim of this study is to develop and validate a case study to aid in the diagnostic reasoning of nursing students and nurses. METHODS: It is a validation study using a case study based on Lunney's method including (1) content validation of the case study by nurse experts through the Delphi technique, (2) identification of nursing diagnoses (NDs) in the case, (3) evaluation of diagnostic accuracy, and (4) establishment of a priority diagnosis by nurse experts. FINDINGS: The case study was developed from the findings of a narrative literature review on the cues of the NDs with a prevalence > 50% in patients with peripheral arterial occlusive disease. Two rounds of expert evaluation were required to validate the case study. The experts identified 18 NDs with different degrees of accuracy. The highly accurate diagnoses most frequently identified by the experts were: Ineffective peripheral tissue perfusion (100%), impaired walking (83%), impaired comfort (50%), and chronic pain (50%). The diagnosis considered a priority by all experts was ineffective peripheral tissue perfusion. CONCLUSIONS: The case study was developed and had its content validated. High-accuracy diagnoses were identified, and a priority was determined. IMPLICATIONS FOR NURSING PRACTICE: The validated case study may be used by students and nurses to facilitate the development of diagnostic reasoning and critical thinking in practice, teaching or research.