WITHANICANDRIN ISOLATED FROM Datura Ferox PROMOTES ANTINOCICEPTION BY MODULATING THE ASICS AND TRPS CHANNELS AND ANTI-INFLAMMATION IN ADULT ZEBRAFISH.

This is the first study to analyze the anti-inflammatory and antinociceptive effect of withanicandrin, isolated from Datura Ferox leaves, and the possible mechanism of action involved in adult zebrafish (ZFa). To this end, the animals were treated intraperitoneally (i.p.) with withanicandrin (4; 20 and 40 mg/kg; 20 µL) and subjected to locomotor activity and acute toxicity. Nociception tests were also carried out with chemical agents, in addition to tests to evaluate inflammatory processes induced by κ-Carrageenan 1.5% and a Molecular Docking study. As a result, withanicandrin reduced nociceptive behavior by capsaicin at a dose of 40 mg/kg and by acid saline at doses of 4 and 40 mg/kg, through neuromodulation of TRPV1 channels and ASICs, identified through blocking the antinociceptive effect of withanicandrin by the antagonists capsazepine and naloxone. Furthermore, withanicandrin caused an anti-inflammatory effect through the reduction of abdominal edema, absence of leukocyte infiltrate in the liver tissue and reduction of ROS in thel liver tissue and presented better affinity energy compared to control morphine (TRPV1) and ibuprofen (COX-1 and COX-2).

Petrosamine isolated from marine sponge Petrosia sp. demonstrates protection against neurotoxicity in vitro and in vivo.

According to The World Alzheimer Report 2023 by Alzheimer's Disease International (ADI) estimates that 33 to 38.5 million people worldwide suffer from Alzheimer's Disease (AD). A crucial hallmark associated with this disease is associated with the deficiency of the brain neurotransmitter acetylcholine, due to an affected acetylcholinesterase (AChE) activity. Marine organisms synthesize several classes of compounds, some of which exhibit significant AChE inhibition, such as petrosamine, a coloured pyridoacridine alkaloid. The aim of this work was to characterize the activity of petrosamine isolated for the first time from a Brazilian marine sponge, using two neurotoxicity models with aluminium chloride, as exposure to aluminium is associated with the development of neurodegenerative diseases. The in vitro model was based in a neuroblastoma cell line and the in vivo model exploited the potential of zebrafish (Danio rerio) embryos in mimicking hallmarks of AD. To our knowledge, this is the first report on petrosamine's activity over these parameters, either in vitro or in vivo, in order to characterize its full potential for tackling neurotoxicity.

Neuromodulation of Acid-Sensitive Ion Channels (ASICs) and Anti-Inflammatory Potential by Lichenxanthone in Adult Zebrafish (Danio rerio): Experimental and Docking Studies.

The xanthone lichenxanthone did not show toxic effects (LC50>1.0 mg/mL). lichenxanthone prevented nociceptive behavior induced by acidic saline, and its analgesic effect was blocked by amiloride, highlighting the involvement of neuromodulation of acid-sensitive ion channels (ASICs). In the analysis of anti-inflammatory activity, concentrations of 0.1 and 0.5 mg/mL of lichenxanthone reduced the edema induced by k-carrageenan 3.5 %, observed from the fourth hour of analysis. This effect was similar to that observed with ibuprofen (positive control). No leukocyte infiltrates were observed in lichenxanthone, suggesting that the compound acts in the acute inflammatory response. The results of the molecular docking study revealed that lichenxanthone exhibited better affinity energy when compared to the ibuprofen control against the two targets evaluated.

Changing human hair fibre colour and shape from the follicle.

INTRODUCTION: Natural hair curvature and colour are genetically determined human traits, that we intentionally change by applying thermal and chemical treatments to the fibre. Presently, those cosmetic methodologies act externally and their recurrent use is quite detrimental to hair fibre quality and even to our health. OBJECTIVES: This work represents a disruptive concept to modify natural hair colour and curvature. We aim to model the fibre phenotype as it is actively produced in the follicle through the topical delivery of specific bioactive molecules to the scalp. METHODS: Transcriptome differences between curly and straight hairs were identified by microarray. In scalp samples, the most variable transcripts were mapped by in situ hybridization. Then, by using appropriate cellular models, we screened a chemical library of 1200 generic drugs, searching for molecules that could lead to changes in either fibre colour or curvature. A pilot-scale, single-centre, investigator-initiated, prospective, blind, bilateral (split-scalp) placebo-controlled clinical study with the intervention of cosmetics was conducted to obtain a proof of concept (RNEC n.92938). RESULTS: We found 85 genes transcribed significantly different between curly and straight hair, not previously associated with this human trait. Next, we mapped some of the most variable genes to the inner root sheath of follicles, reinforcing the role of this cell layer in fibre shape moulding. From the drug library screening, we selected 3 and 4 hits as modulators of melanin synthesis and gene transcription, respectively, to be further tested in 33 volunteers. The intentional specific hair change occurred: 8 of 14 volunteers exhibited colour changes, and 16 of 19 volunteers presented curvature modifications, by the end of the study. CONCLUSION: The promising results obtained are the first step towards future cosmetics, complementary or alternative to current methodologies, taking hair styling to a new level: changing hair from the inside out.

Lyotropic liquid crystalline 2D and 3D mesophases: Advanced materials for multifunctional anticancer nanosystems.

Cancer remains a leading cause of mortality. Despite significant breakthroughs in conventional therapies, treatment is still far from ideal due to high toxicity in normal tissues and therapeutic inefficiency caused by short drug lifetime in the body and resistance mechanisms. Current research moves towards the development of multifunctional nanosystems for delivery of chemotherapeutic drugs, bioactives and/or radionuclides that can be combined with other therapeutic modalities, like gene therapy, or imaging to use in therapeutic screening and diagnosis. The preparation and characterization of Lyotropic Liquid Crystalline (LLC) mesophases self-assembled as 2D and 3D structures are addressed, with an emphasis on the unique properties of these nanoassemblies. A comprehensive review of LLC nanoassemblies is also presented, highlighting the most recent advances and their outstanding advantages as drug delivery systems, including tailoring strategies that can be used to overcome cancer challenges. Therapeutic agents loaded in LLC nanoassemblies offer qualitative and quantitative enhancements that are superior to conventional chemotherapy, particularly in terms of preferential accumulation at tumor sites and promoting enhanced cancer cell uptake, lowering tumor volume and weight, improving survival rates, and increasing the cytotoxicity of their loaded therapeutic agents. In terms of quantitative anticancer efficacy, loaded LLC nanoassemblies reduced the IC50 values from 1.4-fold against lung cancer cells to 125-fold against ovarian cancer cells.

A New Perspective for the Treatment of Alzheimer's Disease: Exosome-like Liposomes to Deliver Natural Compounds and RNA Therapies.

With the increment of the aging population in recent years, neurodegenerative diseases exert a major global disease burden, essentially as a result of the lack of treatments that stop the disease progression. Alzheimer's Disease (AD) is an example of a neurodegenerative disease that affects millions of people globally, with no effective treatment. Natural compounds have emerged as a viable therapy to fill a huge gap in AD management, and in recent years, mostly fueled by the COVID-19 pandemic, RNA-based therapeutics have become a hot topic in the treatment of several diseases. Treatments of AD face significant limitations due to the complex and interconnected pathways that lead to their hallmarks and also due to the necessity to cross the blood-brain barrier. Nanotechnology has contributed to surpassing this bottleneck in the treatment of AD by promoting safe and enhanced drug delivery to the brain. In particular, exosome-like nanoparticles, a hybrid delivery system combining exosomes and liposomes' advantageous features, are demonstrating great potential in the treatment of central nervous system diseases.

Design of a lipid nano-delivery system containing recombinant Candida albicans chitinase 3 as a potential vaccine against fungal infections.

Opportunistic fungi cause lethal systemic infections and impose high medical costs to health systems. The World Health Organization has recognized the importance of fungal infections, including them in its global priority list guiding research, development, and discovery of new therapeutic approaches. Fungal vaccine development has been proposed as one of the treatment and prevention strategies in the last decade. In this study, we present the design of a lipid antigen delivery system based on Dioctadecyldimethylammonium bromide: Monoolein (DODAB: MO) containing recombinant Candida albicans Chitinase 3 (Cht3) for modulation the immune response against fungal infections. Several DODAB:MO liposomes containing Cht3 were prepared and those prepared by the incubation method and containing 5 µg/mL Cht3 were selected due to their favorable size, ζ-potential and stability, suited for antigen delivery applications. The encapsulation of Cht3 in these liposomes resulted in a significant increase in cellular uptake compared to empty liposomes, demonstrating their efficacy in delivering the antigen. Moreover, the liposomes proved to be safe for use in immunization procedures. Subcutaneous administration of Cht3 liposomes elicited a Th1/Th17 immune response profile, associated with the production of high levels of antibodies against Cht3. These antibodies recognized both the native and the recombinant forms of the protein, opsonizing mother-yeast at the cell scars, which has the potential to disrupt cell separation and hinder yeast growth. The findings suggest that the designed lipid antigen delivery system shows promise as a potential candidate for enhancing immune responses against fungal infections, offering a valuable strategy for future fungal vaccine development.

Valorisation of the Invasive Macroalgae Undaria pinnatifida (Harvey) Suringar for the Green Synthesis of Gold and Silver Nanoparticles with Antimicrobial and Antioxidant Potential.

Bacterial and fungal infections are a challenging global problem due to the reported increasing resistance of pathogenic microorganisms to conventional antimicrobials. Nanomaterials are a promising strategy to fight infections caused by multidrug-resistant microbes. In this work, gold (Au@UP) and silver (Ag@UP) nanoparticles were produced for the first time by green synthesis using an aqueous extract of the invasive macroalgae Undaria pinnatifida (UP). The nanoparticles were characterized by a wide range of physicochemical techniques. Au@UP and Ag@UP demonstrated to be spherical and crystalline with an average size of 6.8 ± 1.0 nm and 14.1 ± 2.8 nm, respectively. Carbohydrates and proteins of the UP extract may participate in the synthesis and capping of the nanoparticles. The UP extract, Ag@UP, and Au@UP were assessed for their antimicrobial activity against Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa, Candida albicans, and Candida auris. Ag@UP showed the highest antimicrobial activity with very low MIC and MBC values for all the tested bacteria, and Au@UP demonstrated to be very effective against biofilm-producing bacteria. The antifungal properties of both Ag@UP and Au@UP were remarkable, inhibiting hyphae formation. This study points towards a very promising biomedical exploitation of this invasive brown algae.

De Novo Human Angiotensin-Converting Enzyme 2 Decoy NL-CVX1 Protects Mice From Severe Disease After Severe Acute Respiratory Syndrome Coronavirus 2 Infection.

The emergence of novel variants of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) underscores the need to investigate alternative approaches to prevent infection and treat patients with coronavirus disease 2019. Here, we report the preclinical efficacy of NL-CVX1, a de novo decoy that blocks virus entry into cells by binding with nanomolar affinity and high specificity to the receptor-binding domain of the SARS-CoV-2 spike protein. Using a transgenic mouse model of SARS-CoV-2 infection, we showed that a single prophylactic intranasal dose of NL-CVX1 conferred complete protection from severe disease following SARS-CoV-2 infection. Multiple therapeutic administrations of NL-CVX1 also protected mice from succumbing to infection. Finally, we showed that infected mice treated with NL-CVX1 developed both anti-SARS-CoV-2 antibodies and memory T cells and were protected against reinfection a month after treatment. Overall, these observations suggest NL-CVX1 is a promising therapeutic candidate for preventing and treating severe SARS-CoV-2 infections.

Discrimination of natural colors in anomalous trichromacy and the effects of EnChroma and Vino filters.

It is still unclear how well anomalous trichromats discriminate natural colors and whether commercial spectral filters improve performance in these conditions. We show that anomalous trichromats have good color discrimination with colors drawn from natural environments. It is only about 14% poorer, on average, than normal trichromats in our sample of thirteen anomalous trichromats. No measurable effect of the filters on discrimination was found, even after 8 hours of continuous use. Computations of cone and post-receptoral signals show only a modest increase in medium-to-long-wavelength difference signals, which may explain the absent effect of the filters.

Antimicrobial and anti-biofilm activity of silver nanoparticles biosynthesized with Cystoseira algae extracts.

Antimicrobial resistance is an ever-growing global concern to public health with no clear or immediate solution. Silver nanoparticles (AgNPs) have long been proposed as efficient agents to fight the growing number of antibiotic-resistant strains. However, the synthesis of these particles is often linked to high costs and the use of toxic, hazardous chemicals, with environmental and health impact. In this study, we successfully produced AgNPs by green synthesis with the aid of the extract of two brown algae-Cystoseira baccata (CB) and Cystoseira tamariscifolia (CT)-and characterized their physico-chemical properties. The NPs produced in both cases (Ag@CB and Ag@CT) present similar sizes, with mean diameters of around 22 nm. The antioxidant activity of the extracts and the NPs was evaluated, with the extracts showing important antioxidant activity. The bacteriostatic and bactericidal properties of both Ag@CB and Ag@CT were tested and compared with gold NPs produced in the same algae extracts as previously reported. AgNPs demonstrated the strongest bacteriostatic and bactericidal properties, at concentrations as low as 2.16 µg/mL against Pseudomonas aeruginosa and Escherichia coli. Finally, the capacity of these samples to prevent the formation of biofilms characteristic of infections with a poorer outcome was assessed, obtaining similar results. This work points towards an alternative for the treatment of bacterial infections, even biofilm-inducing, with the possibility of minimizing the risk of drug resistance, albeit the necessary caution implied using metallic NPs.

O perfil acadêmico dos coordenadores dos cursos de Odontologia brasileiros: uma interface com a Bioética / El perfil académico de los coordinadores de cursos de Odontología brasileños: una interfaz con la Bioética / The academic profile of BrazilianDentistry course coordinators: an interface with Bioethics

As Diretrizes Curriculares Nacionais para o Curso de Graduação em Odontologia orientam para uma formação humanista, crítica, reflexiva, e pautada em princípios éticos/bioéticos. Considerando que os coordenadores dos cursos de graduação são fundamentais no processo de formação, foi realizada uma pesquisa nacional, objetivando analisar o perfil acadêmico desses atores. Trata-se de pesquisa transversal, documental, exploratória e analítica. A coleta de dados ocorreu entre junho e julho de 2020, a partir da consulta aos currículos na Plataforma Lattes. Realizaram-se análises descritivas e univariada. Foram analisados os currículos dos coordenadores dos 446 cursos de Odontologia em atividade no Brasil. Destes, 53,0% eram do sexo masculino; 94,2% formados em Odontologia; 81,2% possuíam pelo menos uma especialização, 89,5% mestrado e 52,0% doutorado; 0,4% possuíam especialização em bioética e 0,7% em odontologia legal; 0,7% possuíam mestrado em odontologia legal; 11,7% já haviam lecionado disciplinas nas áreas de ética (deontológica e bioética); 3,8% participavam de projetos de pesquisa e 2,0% de projetos de extensão relacionados à ética; e 6,1% tinham publicações relacionadas à deontologia, ética e/ou bioética. Conclui-se que a maioria dos coordenadores possui cursos de especialização e mestrado, e pouco mais da metade possui doutorado. No entanto, poucos têm alguma formação nas áreas de ética e/ou bioética, ou apresentam projetos de extensão e pesquisa nesses campos do conhecimento (AU).

Las Directrices Curriculares Nacionales para los Cursos de Pregrado en Odontología prevén una formación humanística, crítica, y reflexiva basada en principios éticos/bioéticos. Considerando que los coordinadores de los cursos de pregrado son fundamentales en el proceso de formación, se realizó una pesquisa nacional para analizar el perfil académico de esos profesionales. Se trata de una investigación transversal, documental, exploratoria, y analítica. La colecta de datos se realizó entre junio y julio de 2020, a partir de la consulta de planes de estudio en la Plataforma Lattes. Se realizaron análisis descriptivos y univariados. Fueron analizados los currículos de los coordinadores de los 446 cursos de Odontología activos en Brasil. De los mismos, 53,0% eranhombres; 94,2% eran graduados en Odontología; 81,2% tenían por lo menos una especialización, 89,5% maestría y 52,0% doctorado; 0,4% tenían especialización en Bioética, y 0,7% en Odontología Legal; 11,7% ya había impartido asignaturas en las áreas de ética(deontológica y bioética); 3,8% participaba en proyectos de investigación, y 2,0% en proyectos de extensión relacionados con la ética; 6,1% tenía publicaciones relacionadas con la deontología, la ética y/o la bioética. Se concluye que la mayoría de los coordinadores tienen títulos de especialización y maestría, y poco más de la mitad tienen un doctorado. No obstante, pocos tienen formación en las áreas de ética y/o bioética, o presentan proyectos de extensión e investigación en estos campos del conocimiento (AU).

The National Curriculum Guidelines for the Undergraduate Course in Dentistry guide towards for humanistic, critical, and reflective education, with activities based on ethical/bioethical principles. Considering that undergraduate course coordinators are essential in conducting the education process, a nationwide study was carried out with the objective of evaluating the academic profile of these actors. This is a cross-sectional, documentary, exploratory, and analytical study. The data collection was carried out between June and July 2020, from the consultation of curricula on the Lattes Platform. Descriptive and univariate analyses were performed. The curricula of the coordinators from 446 Dentistry courses in activity in Brazil were analyzed. Of these, 53.0% were male; 94.2% graduated in Dentistry; 81.2% had at least one specialization, 89.5% had a master's degree, and 52.0% had a doctorate; 0.4% had a specialization in bioethics and 0.7% in legal dentistry; 11.7% had already lectured subjects in ethics (deontology and bioethics); 3.8% had participated in research projects, and 2.0% in extension projects related to ethics; while 6.1% had publications related to deontology, ethics, and/or bioethics. It is concluded that most coordinators have specialization and master's degrees, and just over half have a doctorate. However, few have some training in the areas of ethics and/or bioethics, or have extension and research projects in these fields of knowledge (AU).

Impact of umbilical cord mesenchymal stromal/stem cell secretome and cord blood serum in prostate cancer progression.

Prostate cancer (PCa) is the second most common malignancy in men, and the fifth leading cause of death worldwide. Mesenchymal stromal/stem cells (MSC) have been identified in PCa, although contradictory effects in malignant transformation and tumor progression have been described. Since umbilical cord (UC) MSC and cord blood serum (CBS) are rich in numerous growth and anti-inflammatory factors, UC-MSC secretome and CBS are able to modulate tumor cell proliferation and survival as well as immunity and angiogenesis. In the present study, we address this relationship and investigate the influence of UC-MSC secretome and CBS on two human PCa cell lines (PC3 and LNCaP) and a normal epithelial prostate cell line (HPEpiC). Our results disclosed that upon exposure to UC-MSC-conditioned medium or CBS, both PC3 and LNCaP cells exhibited reduced viability, proliferation, and motility while non-malignant epithelial prostate cells were unaffected. These findings were corroborated by expression analysis of AKT/PI3K signaling pathway, p53 and interleukin genes. UC-MSC and CBS factors decreased the expression of growth-stimulating AKT and PI3K effectors and simultaneously up-regulated the expression of tumor-suppressor p53. Moreover, a more anti-inflammatory expression profile was found in both malignant PCa cell lines. Altogether, these results shed light into possible mechanisms by which UC-MSC and CBS reduce PCa progression, further reinforcing their potential use as novel therapeutic agents in PCa.

Oficina de formação bioética para a Estratégia Saúde da Família: perspectivas e olhares dos diferentes atores acerca dos cenários, montagem e espetáculo / Bioethics Training Workshop for Family Health Strategy: perspectives of the different players about scenarios, setup and show / Taller de formación en bioética para la estrategia salud de la familia: perspectivas y miradas de los diferentes actores sobre los escenarios, montaje y espectáculo

A formação dos profissionais de saúde segue em discussão há tempos ­ no Brasil e no mundo ­, assim como as mudanças dos paradigmas sanitários e dos modelos de cuidado em saúde. Com a criação do Sistema Único de Saúde e a implantação da Estratégia de Saúde da Família (ESF) como reorganizadores da atenção em saúde, brotam, neste cenário, questões e problemas bioéticos não vividos anteriormente no âmbito da prática de saúde hospitalar. Este artigo apresenta os resultados da realização de uma oficina de formação em bioética com a participação de 130 pessoas (128 profissionais da ESF no município de Viçosa, Minas Gerais, e dois convidados), promovida pela integração da universidade com o serviço de saúde local. Os referenciais utilizados incluíram o pluralismo metodológico, o trabalho em pequenos grupos, a aprendizagem significativa e o uso da arte para a construção das competências em bioética. Os resultados verificados foram otimistas quanto à efetividade da ação, tanto na ótica dos profissionais da ESF quanto dos participantes (facilitadores e docentes envolvidos), promovendo-se uma construção coletiva de saberes para a práxis.

The training of health professionals has been a point of discussion for a long time in Brazil and around the world, as well as changes in health paradigms and health care models. With the merger of the National Health System and the implementation of the Family Health Strategy (FHS) as organizer of health care, issues and problems emerged, which were not previously thought about in the context of health and hospital practice, mainly reflections on ethical and bioethical aspects. This paper presents the results of conducting a training workshop on bioethics with the participation of 130 people (128 FHS professionals in Viçosa, Minas Gerais and two guests), sponsored by the university's integration with the local health service, based on the use of methodological pluralism, small group work, learning and meaningful use of art for the construction of expertise in bioethics. Actual outcomes were optimistic about the effectiveness of the action, from the viewpoint of both the FHS professionals and participants (facilitators and professors involved), promoting a collective construction of knowledge for practice.

La formación de los profesionales de la salud es objeto de debate desde hace mucho tiempo - en Brasil y en el mundo -, así como los cambios de paradigmas y modelos de salud para el cuidado de la salud. Con la creación del Sistema Único de Salud (SUS) y de la aplicación de la Estrategia Salud de la Familia (ESF) como de reorganizadores cuidado de la salud, surgen, en este escenario, los problemas y las cuestiones de bioética que no se vivieron dentro de la práctica de la salud del hospital. Este artículo presenta los resultados de la realización de una capacitación sobre la bioética con la participación de 130 personas (128 profesionales de la ESF en Viçosa, Minas Gerais y dos invitados), promovido por la integración de la universidad con el servicio de salud local. Los puntos de referencia utilizados incluyen el pluralismo metodológico, el trabajo en pequeños grupos, el aprendizaje significativo y el uso del arte para la construcción de capacidades en bioética. Los resultados observados se mostraron optimistas acerca de la efectividad de la acción, tanto desde el punto de vista de los profesionales de la ESF, y los participantes (facilitadores y profesores involucrados), la promoción de una construcción colectiva de conocimiento a la práctica.

Mortalidade fetal em gestantes com COVID-19 e outros desfechos materno-fetais: uma revisão integrativa da literatura / Fetal mortality in pregnant women with COVID-19 and other maternal-fetal outcomes: an integrative literature review

Objetivo: Analisar os resultados apresentados sobre a relação entre COVID-19 e gravidez, com foco no desfecho fetal. Fontes dos dados: Foi realizada a busca de artigos publicados entre 1 de janeiro de 2020 e 1 de junho de 2021 nas bases de dados PubMed, Embase e Cochrane, utilizando os seguintes descritores: "coronavirus infections", "coronavirus disease 2019", "COVID-19", "fetal mortality" e "fetus mortality". Seleção dos estudos: Foram encontrados 99 artigos, sendo selecionados 28 artigos para leitura completa por meio dos critérios de inclusão e exclusão. Ao final, 14 artigos foram escolhidos para serem incluídos na presente revisão. Coleta de dados: Para a extração dos dados dos artigos selecionados, utilizou-se o instrumento validado por Ursi (2005), modificado para se adequar à demanda do tema em questão. Síntese dos dados: Encontrou-se que a infecção por COVID-19 aumentou a morbimortalidade das gestantes, principalmente aquelas que já possuíam algum fator de risco para a doença grave. Além disso, a maioria dos estudos mostrou uma taxa aumentada de nascimentos prematuros entre os filhos de mães infectadas. Não foram demonstrados resultados consistentes de aumento nas taxas de aborto, mortalidade fetal ou transmissão vertical. Conclusão: Ações de saúde devem priorizar o cuidado materno-fetal com o objetivo de prevenir a doença nas gestantes e acompanhar de forma mais cuidadosa aquelas infectadas pelo vírus, de forma a prevenir a morbimortalidade materna e a prematuridade, que são importantes marcadores de saúde pública.(AU)

Objective: To analyze the results presented on the relationship between COVID-19 and pregnancy, focusing on fetal outcome. Data sources: We searched for articles published between January 1, 2020 and June 1, 2021 in PubMed, Embase and Cochrane databases, using the following descriptors: "coronavirus infections", "coronavirus disease 2019", "COVID-19", "fetal mortality" and "fetus mortality". Selection of studies: 99 articles were found, and 28 articles were selected for full reading through inclusion and exclusion criteria. In the end, 14 articles were chosen to be included in this review. Data collection: To extract data from selected articles, the instrument validated by Ursi (2005) was used, modified to suit the demand of the topic in question. Data synthesis: It was found that COVID-19 infection increased the morbidity and mortality of pregnant women, especially those who already had some risk factor for severe disease. In addition, most studies have shown an increased rate of preterm births among children of infected mothers. No consistent results of increased rates of miscarriage, fetal mortality or mother-to-child transmission have been demonstrated. Conclusion: Health actions should prioritize maternal- fetal care in order to prevent the disease in pregnant women and more carefully monitor those infected with the virus, in order to prevent maternal morbidity and mortality and prematurity, which are important public health markers.(AU)

The association of collaterals with myocardial ischemia and viability in chronic total occlusions.

Collateral development in chronic total occlusions (CTO) is crucial to perfuse the distal myocardium and its angiographic evaluation is frequently used to assess the need for revascularization. We aimed to analyse the association between the presence of ischemia and hibernating myocardium, evaluated by cardiac [13 N]NH3/2-[18 F]FDG PET-CT, and the angiographic characterization of the collateral circulation. Prospective study including patients with a CTO who underwent a [13 N]NH3 and, when deemed necessary, 2-[18 F]FDG PET-CT. Well developed (WD) collaterals were defined as a concomitant angiographic Rentrop grade 3 and Werner collateral connection score 2 or 3, whereas the remaining as poorly developed (PD). 2% thresholds used to identify prognostic benefit of revascularization were applied: ischemia > 10% and hibernating myocardium > 7%. Fifty-nine patients (age 62.9±9.1 years, 58 male) were recruited, WD collaterals were present in 28 (47.5%). No significant differences were found in ischemia (WD 6.4±4.3 vs. PD 7.0±4.1, p = 0.64) and hibernation (WD 1.8±1.9 vs. PD 3.1±3.3, p = 0.18) scores. Most CTO territories demonstrated ischemia, but only 19 (46.3%) were associated with an area > 10% (WD 47.6% vs. PD 45.0%, p = 0.58). Scared non-viable myocardium was limited to 9 (15.3%) patients and was not associated with PD collaterals. Hibernating myocardium was frequent (54.2%), but just 6 (10.2%) CTO patients had an area of > 7% (WD 3.6% vs. PD 16.1%, p = 0.20). Collateral assessment by angiography has a poor association with the ischemic burden and hibernation state of CTO territories. Myocardial viability was present even in most CTO with angiographic PD collaterals.

Atenção integrada às doenças prevalentes na infância no contexto da atenção primária: uma revisão de escopo / Integrated care for prevalent childhoods in the context of primary care: a scoping review / Atención integrada a la infancia prevalente en el contexto de la atención primaria: a scoping review

Objetivo: Mapear e examinar as evidências científicas sobre a aplicação da estratégia de atenção às doenças prevalentes na infância no contexto da Atenção Primária. Método: Scoping Review, baseado nos procedimentos recomendados pelo instituto Joanna Briggs. Definiu-se a pergunta norteadora: "Quais evidências científicas disponíveis acerca da aplicação da estratégia de atenção às doenças prevalentes na infância (AIDPI) no contexto da atenção básica em saúde?". Realizou-se buscas em cinco bases de dados nacionais e internacionais, sobre trabalhos publicados entre 2018 até dezembro de 2022. Dos 2227 estudos encontrados, 329 foram selecionados para leitura na íntegra, resultando em uma amostragem final de 08 estudos analisados. Resultados: Os artigos foram publicados de 2018 a 2022, com abordagem quantitativa dos dados, sendo 04 estudos (50%) com delineamento transversal exploratório. No que tange a aplicação do AIDPI, 06 (75%) apontaram que a aplicabilidade da estratégia AIDPI ainda é deficitária no atendimento e manejo das doenças prevalentes na infância no contexto do primeiro nível de atenção à saúde, devido à falta de treinamento dos profissionais, escassez de recurso e problemas estruturais. Conclusão: As evidências mostram que apesar do longínquo tempo de criação da AIDPI e os estudo apontam baixo índice de adesão e a inaplicabilidade da estratégia, sua aplicação ainda é negligenciada, o que afeta diretamente nos índices de morbimortalidade infantil por causas evitáveis, passíveis de resolução e atendimento no primeiro nível de assistência à saúde.

Objective: To map and examine the scientific evidence on the application of the strategy of care for prevalent childhood diseases in the context of Primary Care. Method: Scoping Review, based on the procedures recommended by the Joanna Briggs Institute. The guiding question was defined as: "What scientific evidence is available on the application of the strategy of care for diseases prevalent in childhood (IMCI) in the context of primary health care? A search was conducted in five national and international databases, on papers published between 2018 and December 2022. Of the 2227 studies found, 329 were selected for reading in full, resulting in a final sample of 08 studies analyzed. Results: The articles were published from 2018 to 2022, with a quantitative approach to data, being 04 studies (50%) with exploratory cross-sectional design. Regarding the application of AIDPI, 06 (75%) pointed out that the applicability of the AIDPI strategy is still deficient in the care and management of prevalent childhood diseases in the context of the first level of health care, due to lack of training of professionals, scarcity of resources, and structural problems. Conclusion: The evidence shows that despite the long time since the creation of the IMCI and the studies show low rates of adherence and inapplicability of the strategy, its application is still neglected, which directly affects the rates of infant morbidity and mortality from preventable causes, amenable to resolution and care at the first level of health care.

Objetivo: Mapear y examinar la evidencia científica sobre la aplicación de la estrategia de atención a las enfermedades prevalentes de la infancia en el contexto de la Atención Primaria. Método: Scoping Review, basada en los procedimientos recomendados por el Instituto Joanna Briggs. La pregunta guía se definió como: "¿Qué evidencia científica existe sobre la aplicación de la estrategia de atención a las enfermedades prevalentes de la infancia (AIEPI) en el contexto de la Atención Primaria de Salud?". Se realizó una búsqueda en cinco bases de datos nacionales e internacionales, sobre trabajos publicados entre 2018 y diciembre de 2022. De los 2227 estudios encontrados, se seleccionaron 329 para su lectura completa, resultando una muestra final de 08 estudios analizados. Resultados: Los artículos fueron publicados entre 2018 y 2022, con un abordaje cuantitativo de los datos, siendo 04 estudios (50%) con diseño transversal exploratorio. En cuanto a la aplicación de la AIDPI, 06 (75%) señalaron que la aplicabilidad de la estrategia AIDPI es aún deficiente en la atención y manejo de las enfermedades prevalentes de la infancia en el contexto del primer nivel de atención de salud, debido a la falta de capacitación de los profesionales, escasez de recursos y problemas estructurales. Conclusiones: La evidencia muestra que a pesar del largo tiempo transcurrido desde la creación de la AIEPI y de que los estudios muestran bajos índices de adherencia e inaplicabilidad de la estrategia, su aplicación sigue siendo descuidada, lo que incide directamente en los índices de morbimortalidad infantil por causas prevenibles, susceptibles de resolución y atención en el primer nivel de atención de salud.

Bioética na odontologia: o que pensam os coordenadores dos cursos / Bioethics teaching in dentistry as seen by course coordinators / Bioética en odontología: qué piensan los coordinadores de las carreras

Resumo Este artigo analisa a importância que coordenadores dos cursos de odontologia brasileiros atribuem ao ensino da bioética e sua opinião sobre o perfil desejável para egressos desse curso. Trata-se de estudo exploratório, descritivo e transversal realizado com 130 coordenadores de cursos de odontologia brasileiros no qual foram realizadas análises descritivas e análise de conteúdo de Bardin. A grande maioria dos participantes atribui importância à bioética em diferentes situações e 23,8% deles consideram um perfil adequado o profissional com postura ética e humanizada, reflexivo e com competência técnica. A bioética está sendo inserida na matriz curricular dos cursos de odontologia, e a maioria dos coordenadores a considera importante em diferentes situações, mas nem todos os gestores entendem o que ela contempla.

Abstract This article analyzes the importance dentistry course coordinators attribute to bioethics teaching and their opinion on the expected graduate profile. An exploratory, descriptive cross-sectional study was conducted with 130 coordinators of Brazilian dentistry courses. Data underwent descriptive analysis and Bardin's content analysis. Most participants attribute importance to bioethics teaching in different situations and 23.8% considered a professional with an ethical and humanized attitude, who is reflective and technically competent as a suitable profile. Dentistry courses are increasingly including bioethics in their curricula, and although most coordinators consider it important, not all understand its principles.

Resumen Este artículo analiza la importancia que los coordinadores de las carreras de Odontología en Brasil atribuyen a la enseñanza de la bioética y su opinión sobre el perfil deseable para los graduados de esta carrera. Se trata de un estudio exploratorio, descriptivo y transversal, realizado con 130 coordinadores de las carreras de Odontología de Brasil en el que se llevaron a cabo análisis descriptivos y análisis de contenido de Bardin. La mayoría de los participantes considera que la bioética es importante en diferentes situaciones, y el 23,8% de ellos estiman que un profesional con actitud ética y humanizada, reflexivo y técnicamente competente es un perfil adecuado. La bioética se está incluyendo en el plan de estudios de las carreras de Odontología, y la mayoría de los coordinadores la consideran importante en diferentes situaciones, pero no todos los directores entienden su alcance.

Mapeando o ensino da bioética nos cursos de odontologia brasileiros / Mapping bioethics teaching in Brazilian dental schools / Mapeo de la enseñanza de la bioética en las carreras de odontología en Brasil

Resumo Por meio de estudo descritivo, exploratório e transversal, objetivou-se avaliar a inserção da disciplina bioética na matriz curricular de cursos de odontologia brasileiros. Com dados coletados entre dezembro de 2021 e janeiro de 2022 nos sites das 430 instituições que divulgavam informações sobre o curso, realizou-se análise exploratória visando obter estatísticas descritivas de variáveis categóricas e contínuas. Os resultados apontaram que a descrição introdutória de 245 cursos (57%) fazia referência à formação humanista, crítica e reflexiva, e/ou enfatizava a presença de disciplina de bioética. Além disso, 345 cursos (80,2%) disponibilizavam as matrizes curriculares e em 139 (40,3%) destas havia disciplinas com a nomenclatura "bioética", ministradas principalmente nos dois primeiros anos (69%). Conclui-se que, apesar de as Diretrizes Curriculares Nacionais do Curso de Graduação em Odontologia orientarem para uma formação com condutas pautadas nos princípios éticos/bioéticos, em menos da metade das matrizes curriculares avaliadas constava disciplina de bioética.

Abstract A descriptive, exploratory, and cross-sectional study was conducted to evaluate the inclusion of bioethics in the curricula of Brazilian dental schools. Data collected between December 2021 and January 2022 from the websites of the 430 institutions that disclosed information about the program, underwent exploratory analysis to obtain descriptive statistics of categorical and continuous variables. Results showed that the introductory description of 245 courses (57%) referred to humanistic, critical and reflective education, and/or emphasized the presence of a bioethics discipline. Of the 345 curricula (80.2%) available, 139 (40.3%) had disciplines with "bioethics" on their name, taught mainly in the first two years (69%). Thus, although the National Curriculum Guidelines for Undergraduate Dentistry postulate an education based on ethical/bioethical principles, less than half of the curriculums evaluated included a bioethics discipline.

Resumen Desde un estudio descriptivo, exploratorio y transversal, se evaluó la inclusión de la asignatura de la bioética en el plan de estudios de Odontología en Brasil. Se recopilaron los datos entre diciembre de 2021 y enero de 2022 en la página web de 430 instituciones, y se aplicó un análisis exploratorio para obtener estadísticos descriptivos de variables categóricas y continuas. Los resultados mostraron que 245 carreras (57%) describían la formación humanista, crítica y reflexiva, y/o señalaba la presencia de la asignatura de bioética. Además, 345 carreras (80,2%) ponían a disposición sus planes de estudio, y 139 (40,3%) de estas presentaban asignaturas con el nombre "bioética", que eran impartidas en los dos primeros años del curso (69%). Aunque las Directrices Curriculares Nacional de la Licenciatura en Odontología preconizan la formación basada en principios éticos/bioéticos, menos de la mitad de los planes de estudio contaba con una asignatura de bioética.

Contextual and individual factors associated with self-reported tooth loss among adults and elderly residents in rural riverside areas: A cross-sectional household-based survey.

BACKGROUND: Tooth loss is an oral health condition with high prevalence and negative impact on quality of life. It is the result of the history of oral diseases and their treatment as well as provision of dental care and access to dental services. Socioeconomic characteristics are determinants of tooth loss and living in rural areas is also a risk factor for its incidence. OBJECTIVE: To identify contextual and individual factors associated with self-reported tooth loss among adults and elderly people living in rural riverside areas. METHODS: A cross-sectional household-based survey was conducted in 2019 with rural riverside communities on the left bank of the Rio Negro River, Manaus, Amazonas. These communities are covered by a fluvial health team and two riverside health teams. Interviews were conducted in a representative random sample of dwellers aged ≥ 18 years, using electronic forms to obtain information on oral health conditions, demographic and socioeconomic characteristics, and use of and access to health services. The outcome was self-reported tooth loss. After the descriptive analysis of the data, a multilevel Poisson regression analysis was performed to estimate the prevalence ratio for the outcome. Variables with p-value ≤0.20 in the bivariate analyses were included in the multiple analysis considering the hierarchy between individual and contextual variables in the multilevel model. Variables with p-value ≤0.10 were kept in the final model and the significance level adopted was 0.05. RESULTS: 603 individuals from 357 households were assessed (mean age 44.1 years). The average number of missing teeth was 11.2 (±11.6); 27.4% of individuals had lost more than 20 teeth (non-functional dentition) and 12.1% were completely edentulous. Contextual characteristic of primary healthcare offered was associated with the outcome. The tooth loss was lower in territories covered by riverside health teams. At individual level, tooth loss was greater in older individuals who had experienced dental pain over the past six months and whose sugar consumption was high. Black or brown individuals, individuals whose household income was higher, those who were on the Bolsa Família cash transfer program, those who consulted a dentist over the past year, and those who reported satisfaction with their teeth/oral health reported less tooth loss. CONCLUSION: Tooth loss was associated with contextual territorial factors related to the healthcare service and individual demographic, behavioral, socioeconomic, and service-related characteristics as well as self-perceived oral health conditions. The findings suggest that actions focused on the oral health of these populations involve not only changes in the healthcare service organization, but also intersectoral policies that contribute to reducing social inequalities.