Nursing rights in comics: educational technological innovation report

OBJECTIVES

to report an educational technology construction on nursing professionals' rights.

METHODS

an experience report on educational technology construction during the crediting of university extension hours in an undergraduate nursing course at a Brazilian public university, between March and June 2023. The Deming cycle was used as a procedural method.

RESULTS

four meetings were held between students and extension workers. Eight comic books were produced based on the Code of Ethics for Nurses, addressing professional autonomy, fair remuneration, risk-free work, denial of exposure in the media and others. The Deming cycle proved to be an important strategy for constructing products.

CONCLUSIONS

nursing professionals' rights must be discussed and improved. Educational technologies, such as comic books, provide playful and reflective learning.

Non-violent communication as a technology in interpersonal relationships in health work: a scoping review

BACKGROUND

Working in healthcare environments is highly stressful for most professionals and can trigger problems in interpersonal relationships that can result in horizontal violence. In order to prevent violence and improve the working environment, some strategies can be implemented to provide well-being for all those involved, whether directly or indirectly in health care, such as non-violent communication. The aim of this study was to map and synthesize the available scientific evidence on the use of Nonviolent Communication as a technology for a culture of peace in interpersonal relationships in healthcare.

METHODS

This is a scoping review carried out in the National Library of Medicine (PubMed), Cumulative Index to Nursing and Allied Health Literature (CINAHL), Web of Science, Excerpa Medica DataBASE (Embase), PsycINFO - APA/ PsycNET (American Psychological Association) and Latin American and Caribbean Health Sciences Literature (LILACS) databases between March and August 2023. The eligibility criteria used were studies that addressed the topic of NVC in the area of health, published in Portuguese, Spanish or English, with no time restrictions.

RESULTS

53 studies were found in the databases. Two additional studies were extracted from of primary research. In the first exclusion phase, 16 texts were removed due to being duplicated. 39 articles were potentially relevant, and full-texts were reviewed for eligibility along with the inclusion and exclusion criteria Thus, seven studies were included in this review, published in English (five) and Portuguese (two), two of which were carried out in Brazil, one in the United States of America, one in South Korea, one in France, one in Canada and one in Thailand. In terms of the type of study/publication, two studies were reflections, one was a review, one was a mixed study, one was an experience report and two were experimental. The studies were predominantly of high and moderate methodological quality (85.7%). The total number of participants in the studies was 185. The studies showed that NVC is a technology that has made it possible to improve interpersonal relationships between health professionals. Training programs or educational intervention projects on the subject are useful for familiarizing professionals with the subject and demonstrating situations in which the technique can be included.

CONCLUSION

The global scientific literature indicates that Nonviolent Communication is a significant resource for improving interpersonal relationships in healthcare work. This approach can be adopted as a strategy by managers and decision-makers, both to resolve conflicts and to prevent aggressive situations between health professionals, especially when it comes to moral or psychological aspects.

POSEIDON: Peptidic Objects SEquence-based Interaction with cellular DOmaiNs: a new database and predictor

Cell-penetrating peptides (CPPs) are short chains of amino acids that have shown remarkable potential to cross the cell membrane and deliver coupled therapeutic cargoes into cells. Designing and testing different CPPs to target specific cells or tissues is crucial to ensure high delivery efficiency and reduced toxicity. However, in vivo/in vitro testing of various CPPs can be both time-consuming and costly, which has led to interest in computational methodologies, such as Machine Learning (ML) approaches, as faster and cheaper methods for CPP design and uptake prediction. However, most ML models developed to date focus on classification rather than regression techniques, because of the lack of informative quantitative uptake values. To address these challenges, we developed POSEIDON, an open-access and up-to-date curated database that provides experimental quantitative uptake values for over 2,300 entries and physicochemical properties of 1,315 peptides. POSEIDON also offers physicochemical properties, such as cell line, cargo, and sequence, among others. By leveraging this database along with cell line genomic features, we processed a dataset of over 1,200 entries to develop an ML regression CPP uptake predictor. Our results demonstrated that POSEIDON accurately predicted peptide cell line uptake, achieving a Pearson correlation of 0.87, Spearman correlation of 0.88, and r2 score of 0.76, on an independent test set. With its comprehensive and novel dataset, along with its potent predictive capabilities, the POSEIDON database and its associated ML predictor signify a significant leap forward in CPP research and development. The POSEIDON database and ML Predictor are available for free and with a user-friendly interface at https://moreiralab.com/resources/poseidon/ , making them valuable resources for advancing research on CPP-related topics. Scientific Contribution Statement: Our research addresses the critical need for more efficient and cost-effective methodologies in Cell-Penetrating Peptide (CPP) research. We introduced POSEIDON, a comprehensive and freely accessible database that delivers quantitative uptake values for over 2,300 entries, along with detailed physicochemical profiles for 1,315 peptides. Recognizing the limitations of current Machine Learning (ML) models for CPP design, our work leveraged the rich dataset provided by POSEIDON to develop a highly accurate ML regression model for predicting CPP uptake.

Perfil y características de la violencia contra los adultos mayores durante la pandemia de COVID-19

Resumen Objetivo: identificar el perfil sociodemográfico y las características de la violencia interpersonal contra los adultos mayores en el primer año de la pandemia de COVID-19 en una ciudad capital de la región sureste de Brasil. Método: investigación descriptiva, exploratoria con diseño transversal a partir del análisis de las notificaciones de casos sospechosos o confirmados de violencia contra el adulto mayor, ocurridos entre marzo de 2020 y marzo de 2021. Se realizó un análisis estadístico univariado y la prueba exacta de Fisher (p< 0,05). Resultados: hubo 2681 notificaciones en el período. Las principales víctimas fueron personas entre 60 y 64 años, de sexo femenino, blancas y con baja escolaridad. La mayoría de los casos se registró en el hogar. La violencia física y psicológica fueron las más comunes, con uso de fuerza física/golpes y amenaza, respectivamente. El agresor era generalmente del sexo masculino, más joven que la víctima, hijo o pareja. Las agresiones se produjeron más de una vez y fueron motivadas por conflictos generacionales. Hubo baja derivación a organismos de protección de adultos mayores. Conclusión: el perfil sociodemográfico obtenido revela que son víctimas vulnerables, sujetas a múltiples formas de violencia y que la integridad de su salud está en riesgo potencial.

Perfil e características da violência contra a pessoa idosa durante a pandemia COVID-19

Resumo Objetivo: identificar o perfil sociodemográfico e as características da violência interpessoal contra a pessoa idosa no primeiro ano da pandemia COVID-19 em uma capital da região sudeste do Brasil. Método: pesquisa descritiva, exploratória, com delineamento transversal a partir da análise das notificações de casos suspeitos ou confirmados de violência contra a pessoa idosa, ocorridas entre março de 2020 e março de 2021. Foi realizada a análise estatística univariada e teste exato de Fisher (p<0,05). Resultados: houve 2681 notificações no período. As principais vítimas foram pessoas com idade entre 60 e 64 anos, do sexo feminino, brancas e com baixa escolaridade. As ocorrências tiveram maior frequência nos domicílios. As violências físicas e psicológicas foram as mais comuns, com uso de força física/espancamento e ameaça, respectivamente. O agressor era, em sua maioria, do sexo masculino, mais jovem do que a vítima, geralmente filho ou parceiro íntimo. As agressões ocorreram mais de uma vez e foram motivadas por conflitos geracionais. Houve baixo encaminhamento para órgãos de proteção a pessoa idosa. Conclusão: o perfil sociodemográfico encontrado evidencia vítimas vulneráveis, sujeitas a muitas formas de violência e com potenciais riscos à integralidade de sua saúde.

Health care for people with tuberculosis/HIV co-infection from the multidisciplinary team's perspective

OBJECTIVE

to know the multidisciplinary team's perspective about the health care of people with tuberculosis and human immunodeficiency virus co-infection in relation to treatment.

METHODS

this is a descriptive-exploratory study, with a qualitative approach, carried out in a health care service in São Paulo, from May to June 2019. Semi-structured interviews were conducted with nine professionals from the multidisciplinary team. Data were processed through discourse analysis with the support of webQDA.

RESULTS

Two empirical categories emerged: Health care interfaces for people with tuberculosis and human immunodeficiency virus co-infection; Barriers and facilitators for health care for people with co-infection.

FINAL CONSIDERATIONS

the health-disease process in co-infection is mediated by conditions that positively or negatively interfere with treatment compliance. People's health care goes beyond exclusively clinical assistance and requires the recognition of needs in a broad perspective.

TRAP1 Is Expressed in Human Retinal Pigment Epithelial Cells and Is Required to Maintain their Energetic Status

Age-related macular degeneration (AMD) is the leading cause of severe vision loss and blindness in elderly people worldwide. The damage to the retinal pigment epithelium (RPE) triggered by oxidative stress plays a central role in the onset and progression of AMD and results from the excessive accumulation of reactive oxygen species (ROS) produced mainly by mitochondria. Tumor necrosis factor receptor-associated protein 1 (TRAP1) is a mitochondrial molecular chaperone that contributes to the maintenance of mitochondrial integrity by decreasing the production and accumulation of ROS. The present study aimed to evaluate the presence and the role of TRAP1 in the RPE. Here, we report that TRAP1 is expressed in human adult retinal pigment epithelial cells and is located mainly in the mitochondria. Exposure of RPE cells to hydrogen peroxide decreases the levels of TRAP1. Furthermore, TRAP1 silencing increases intracellular ROS production and decreases mitochondrial respiratory capacity without affecting cell proliferation. Together, these findings offer novel insights into TRAP1 functions in RPE cells, opening possibilities to develop new treatment options for AMD.

Profile and characteristics of violence against older adults during the COVID-19 pandemic

OBJECTIVE

to identify the sociodemographic profile and the characteristics of interpersonal violence against older adults during the first year of the COVID-19 pandemic in a capital city from the Brazilian Southeast region.

METHOD

a descriptive and exploratory research study with a cross-sectional design based on the notifications of suspected or confirmed cases of violence against older adults between March 2020 and March 2021. A univariate statistical analysis and Fisher's exact test (p<0.05) were performed.

RESULTS

a total of 2,681 notifications were recorded during the period. The main victims were individuals aged between 60 and 64 years old, female, white-skinned and with low schooling levels. The instances of violence were more frequent in the victims' homes. Physical and psychological violence predominated, through physical force/beatings and threats, respectively. Most of the aggressors were male, younger than the victims and generally their children or intimate partners. The aggressions were perpetrated more than once and were driven by generational conflicts. There was low referral to entities for the protection of older adults.

CONCLUSION

the sociodemographic profile found evidences vulnerable victims, subjected to many types of violence, and at a potential risk against their overall health.

Construction of educational technology on non-violent communication between health professionals: an experience report

OBJECTIVE

to report the construction of an educational technology to promote non-violent communication for health professionals.

METHODS

an experience report on the development of an educational technology on non-violent communication for health professionals, prepared by members of a social university extension project. The Plan-Do-Study-Act cycle was used as a process or product management procedure.

RESULTS

two complete management method cycles were performed. A mini almanac was generated as a final product, which addressed the main elements of non-violent communication, an example of its use in everyday life, hobbies and interspersed activities.

CONCLUSION

educational technology construction (mini almanac) by members of a university extension project was facilitated using the Plan-Do-Study-Act cycle, proving to be a resource for disseminating non-violent communication in health work and promoting a culture of peace.

Percepção de puérperas sobre a violência obstétrica durante o trabalho de parto

Não se aplica 

MicroRNA-124-3p-enriched small extracellular vesicles as a therapeutic approach for Parkinson's disease

Parkinson's disease is a neurodegenerative disease characterized by the loss of dopaminergic neurons in the substantia nigra with no effective cure available. MicroRNA-124 has been regarded as a promising therapeutic entity for Parkinson's disease due to its pro-neurogenic and neuroprotective roles. However, its efficient delivery to the brain remains challenging. Here, we used umbilical cord blood mononuclear cell-derived extracellular vesicles as a biological vehicle to deliver microRNA (miR)-124-3p and evaluate its therapeutic effects in a mouse model of Parkinson's disease. In vitro, miR-124-3p-loaded small extracellular vesicles induced neuronal differentiation in subventricular zone neural stem cell cultures and protected N27 dopaminergic cells against 6-hydroxydopamine-induced toxicity. In vivo, intracerebroventricularly administered small extracellular vesicles were detected in the subventricular zone lining the lateral ventricles and in the striatum and substantia nigra, the brain regions most affected by the disease. Most importantly, although miR-124-3p-loaded small extracellular vesicles did not increase the number of new neurons in the 6-hydroxydopamine-lesioned striatum, the formulation protected dopaminergic neurons in the substantia nigra and striatal fibers, which fully counteracted motor behavior symptoms. Our findings reveal a novel promising therapeutic application of small extracellular vesicles as delivery agents for miR-124-3p in the context of Parkinson's disease.

Self-inflicted violence and suicide in people living with HIV/AIDS: a systematic review

OBJECTIVES

to analyze intellectual productions on self-inflicted violence and suicide in people living with HIV/AIDS.

METHODS

a systematic review, carried out between March and April 2021, in the PubMed®/MEDLINE®, Web of Science and LILACS databases, subsidized in the Strengthening the Reporting of Observational Studies in Epidemiology. The period outlined was from 2011 to 2020.

RESULTS

a total of 199 studies were identified, and 16 composed the final sample, grouped into the categories: Sociodemographic characteristics of victims of self-inflicted violence/suicide and their intervening factors (pointing to young adults, especially homosexuals, with low social support and a history of mental illness or substance abuse as usual victims); Successful measures for suicide prevention/control in people living with HIV/AIDS (suggesting more frequent psychosocial and clinical follow-up of those starting antiretroviral and immunocompromised treatment).

CONCLUSIONS

biopsychosocial follow-up, analysis of sociodemographic profile and intervening factors should be frequent in this population for disease prevention/control.

Intercellular transfer of miR-200c-3p impairs the angiogenic capacity of cardiac endothelial cells

As mediators of intercellular communication, extracellular vesicles containing molecular cargo such as microRNAs, are secreted by cells and taken up by recipient cells to influence their cellular phenotype and function. Here, we report that cardiac stress-induced differential microRNA content, with miR-200c-3p being one of the most enriched, in cardiomyocyte-derived extracellular vesicles mediates functional crosstalk with endothelial cells. Silencing of miR-200c-3p in mice subjected to chronic increased cardiac pressure overload resulted in attenuated hypertrophy, smaller fibrotic areas, higher capillary density and preserved cardiac ejection fraction. Interestingly, we were able to maximal rescue microvascular and cardiac function with very low doses of antagomir, which specifically silences miR-200c-3p expression in the non-myocyte cells. Our results reveal vesicle transfer of miR-200c-3p from cardiomyocytes to cardiac endothelial cells, underlining the importance of cardiac intercellular communication in the pathophysiology of heart failure.

CARACTERÍSTICAS SOCIODEMOGRÁFICAS DA VIOLÊNCIA INTERPESSOAL ASSOCIADA AO CONSUMO DE ÁLCOOL

Objetivo: identificar o perfil sociodemográfico da violência interpessoal associada ao consumo de álcool em São Paulo-SP, Brasil. Método: estudo transversal realizado por meio das notificações de casos suspeitos ou confirmados de violência interpessoal do Sistema de Informação de Agravos de Notificação realizadas entre 2016 e 2019. A coleta foi feita entre março e junho de 2020. Realizado teste qui-quadrado ou exato de Fischer na análise estatística. Resultados: obtiveram-se 27.775 notificações cujo perfil prevalente foi de vítimas do sexo feminino (60,6%), entre 20 e 34 anos (41,4%), pardas ou pretas (51%), com ensino médio completo (18,8%). A violência física foi mais frequente (81,9%), perpetrada por parceiro íntimo (20,3%), motivada por sexismo (9,9%) e conflito geracional (11,2%). Na violência sexual, o estupro prevaleceu com 69,4% e houve baixa oferta de contracepção de emergência (14,7%). Conclusão: o estudo contribui para reflexões e subsídios no planejamento de políticas públicas de controle do agravo.

Violência autoprovocada e suicídio em pessoas que vivem com HIV/AIDS: revisão sistemática

RESUMO Objetivos: analisar as produções intelectuais sobre a violência autoprovocada e suicídio em pessoas que vivem com HIV/AIDS. Métodos: revisão sistemática, realizada entre março e abril de 2021, nas bases PubMed®/MEDLINE®, Web of Science e LILACS, subsidiada no instrumento Strengthening the Reporting of Observational Studies in Epidemiology. O período delineado foi de 2011 a 2020. Resultados: identificaram-se 199 estudos, e 16 compuseram a amostra final, sendo agrupados nas categorias: Características sociodemográficas das vítimas de violência autoprovocada/suicídio e seus fatores intervenientes (apontando adultos jovens, especialmente homossexuais, com baixo suporte social e histórico de doenças mentais ou abuso de substâncias como as vítimas usuais); Medidas exitosas para prevenção/controle de suicídio em pessoas vivendo com HIV/AIDS (sugerindo acompanhamento psicossocial e clínico mais frequente daqueles em início de tratamento antirretroviral e imunodeprimidos). Conclusões: acompanhamento biopsicossocial, análise do perfil sociodemográfico e dos fatores intervenientes devem ser frequentes nesta população, para prevenção/controle do agravo.

Effects of different stimulators of cGMP synthesis on lipid content in bovine oocytes matured in vitro

Bovine oocytes and blastocysts produced in vitro are frequently of lower quality and less cryotolerant than those produced in vivo, and greater accumulation of lipids in the cytoplasm has been pointed out as one of the reasons. In human adipocytes cGMP signaling through the activation of PKG appears to be involved in lipid metabolism, and components of this pathway have been detected in bovine cumulus-oocyte complexes (COCs). The aim of this study was to investigate the influence of this pathway on the lipid content in oocytes and expression of PLIN2 (a lipid metabolism-related gene) in cumulus cells. COCs were matured in vitro for 24 h with different stimulators of cGMP synthesis. The activation of soluble guanylyl cyclase (sGC) by Protoporphyrin IX reduced lipid content (22.7 FI) compared to control oocytes (36.45 FI; P <0.05). Stimulation of membrane guanylyl cyclase (mGC) with natriuretic peptides precursors A and C (NPPA and NPPC) had no effect (36.5 FI; P>0.05). When the PKG inhibitor KT5823 was associated with Protoporphyrin IX, its effect was reversed and lipid contents increased (52.71 FI; P<0.05). None of the stimulators of cGMP synthesis affected the expression of PLIN2 in cumulus cells. In conclusion, stimulation of sGC for cGMP synthesis promotes lipolytic activities in bovine oocytes matured in vitro and such effect is mediated by PKG. However, such effect may vary depending on the stimulus received and/or which synthesis enzyme was activated, as stimulation of mGC had no effects.

High-throughput screening of nanoparticles in drug delivery

The use of pharmacologically active compounds to manage and treat diseases is of utmost relevance in clinical practice. It is well recognized that spatial-temporal control over the delivery of these biomolecules will greatly impact their pharmacokinetic profile and ultimately their therapeutic effect. Nanoparticles (NPs) prepared from different materials have been tested successfully in the clinic for the delivery of several biomolecules including non-coding RNAs (siRNA and miRNA) and mRNAs. Indeed, the recent success of mRNA vaccines is in part due to progress in the delivery systems (NP based) that have been developed for many years. In most cases, the identification of the best formulation was done by testing a small number of novel formulations or by modification of pre-existing ones. Unfortunately, this is a low throughput and time-consuming process that hinders the identification of formulations with the highest potential. Alternatively, high-throughput combinatorial design of NP libraries may allow the rapid identification of formulations with the required release and cell/tissue targeting profile for a given application. Combinatorial approaches offer several advantages over conventional methods since they allow the incorporation of multiple components with varied chemical properties into materials, such as polymers or lipid-like materials, that will subsequently form NPs by self-assembly or chemical conjugation processes. The current review highlights the impact of high-throughput in the development of more efficient drug delivery systems with enhanced targeting and release kinetics. It also describes the current challenges in this research area as well as future directions.

Exogenous loading of miRNAs into small extracellular vesicles

Small extracellular vesicles (sEVs), through their natural ability to interact with biological membranes and exploit endogenous processing pathways to convey biological information, are quintessential for the delivery of therapeutically relevant compounds, such as microRNAs (miRNAs) and proteins. Here, we used a fluorescently-labelled miRNA to quantify the efficiency of different methods to modulate the cargo of sEVs. Our results showed that, compared with electroporation, heat shock, permeation by a detergent-based compound (saponin) or cholesterol-modification of the miRNA, Exo-Fect was the most efficient method with > 50% transfection efficiency. Furthermore, qRT-PCR data showed that, compared with native sEVs, Exo-Fect modulation led to a > 1000-fold upregulation of the miRNA of interest. Importantly, this upregulation was observed for sEVs isolated from multiple sources. The modulated sEVs were able to delivery miR-155-5p into a reporter cell line, confirming the successful delivery of the miRNA to the target cell and, more importantly, its functionality. Finally, we showed that the membrane of Exo-Fect-loaded sEVs was altered compared with native sEVs and that enhanced the internalization of Exo-Fect-loaded sEVs within the target cells and decreased the interaction of those modulated sEVs with lysosomes.

Gender violence against woman nursing students: a cross-sectional study

OBJECTIVE

to identify the sociodemographic profile of nursing students who suffered gender violence and to know the characteristics of the violence that occurred in this population.

METHOD

a cross-sectional study with 91 nursing students from a public university in southeastern Brazil, between September 2019 and January 2020. A sociodemographic questionnaire and the World Health Organization Violence Against Women, section 10 were used.

RESULTS

approximately 65% suffered some form of gender violence during their lifetime, mainly perpetrated by family members. 41.7% were victims of physical aggression, 23% suffered sexual harassment, 30.8% suffered sexual abuse. There was a pattern of intergenerational violence (p<0.001), vulnerability of self-declared lesbians and/or bisexuals (p=0.705), Christian or evangelical (p<0.001).

CONCLUSION

gender violence was high among those surveyed. The experience of forms of violence can damage students' lives. There is a need for attention from teaching institutions and professors in addressing the theme.

The impact of adenomyosis on IVF outcomes: a prospective cohort study

STUDY QUESTION

Does the presence of adenomyosis in women treated with IVF alter IVF outcomes?

SUMMARY ANSWER

Adenomyosis does not significantly alter IVF outcomes when adjusted for confounding factors including maternal age and smoking status.

WHAT IS KNOWN ALREADY

Studies evaluating adenomyosis and its impact on infertility, particularly when focusing on IVF, remain controversial. Many studies report that adenomyosis has a detrimental effect on IVF outcomes, however age is strongly related with both the prevalence of adenomyosis and worse reproductive outcomes.

STUDY DESIGN, SIZE, DURATION

A prospective cohort study of women undergoing 4002 IVF cycles who had undergone a screening ultrasound assessing features of adenomyosis from 1 January 2016 to 31 March 2018 at a multi-site private fertility clinic. Of these women, 1228 fulfilled the inclusion criteria and commenced an IVF cycle, with a subset of 715 women undergoing an embryo transfer (ET). Women were defined as having adenomyosis if there was sonographic evidence of adenomyosis on ultrasound as per the Morphological Uterus Sonographic Assessment criteria, and were then compared to women without.

PARTICIPANTS/MATERIALS, SETTING, METHODS

All women at a private multi-site IVF clinic who underwent a standardised ultrasound to identify features of adenomyosis and also commenced an IVF cycle were assessed for their outcomes. These included clinical pregnancy (defined as the presence of a gestational sac on ultrasound at 7 weeks’ gestation), clinical pregnancy loss, number of cancelled cycles, number of useful embryos for transfer or freezing and live birth rates. As a secondary aim, initiated stimulation cycles and those that had an ET were analysed separately to determine when an effect of adenomyosis on IVF might occur: during stimulation or transfer.

MAIN RESULTS AND THE ROLE OF CHANCE

When adjusting for confounders, women with and without sonographic features of adenomyosis had no significant differences in most of their IVF outcomes including live birth rates.

LIMITATIONS, REASONS FOR CAUTION

Adenomyosis had a detrimental impact on IVF outcomes prior to adjusting for confounding factors. No allowance was made for the possibility that confounding factors may merely reduce the effect size of adenomyosis on IVF outcomes. Second, despite a power calculation, the study was underpowered as not all fresh cycles led to an ET.

WIDER IMPLICATIONS OF THE FINDINGS

This is one of the largest studies to evaluate adenomyosis and IVF outcomes, while also importantly adjusting for confounding factors. The results suggest that adenomyosis does not have the detrimental impact on IVF that has previously been suggested, possibly reducing the importance of screening for and treating this entity.

STUDY FUNDING/COMPETING INTEREST(S)

The study received no external funding. The authors declare no conflicts of interest.

TRIAL REGISTRATION NUMBER

ACTRN12617000796381.

Intimate partner violence against pregnant women: sociodemographic profile and characteristics of the aggressions

ABSTRACT Objective: To identify the sociodemographic profile and the main characteristics of violence by intimate partners in pregnant women in São Paulo, Brazil. Method: Cross-sectional study based on notifications for suspected or confirmed cases of inter-police violence from the National Disease Notification System (SINAN) carried out in the 2016-2019 period. Collection was performed between March and June 2020. Chi-squared test or Fisher’s Exact test were used in statistical analysis. Results: A total of 4,269 notifications were obtained and the prevalent profile was women between 20 and 34 years old (62.5%), brown or black (51.3%), who have completed high school (22.5%) in the first trimester of pregnancy (44.2%). Physical violence was more frequent (48.3%), occurred at home (59.1%), motivated by sexism (22.29%). Sexual violence or rape was more frequent (85.4%) with abortion in cases provided for by law (39%). Conclusion: Adult brown or black women in the first gestational trimester experienced physical violence more frequently.

57 Proteomic analysis reveals metabolic dysregulation in invitro-cultured bovine embryos

Invitro culture (IVC) systems fail to completely recapitulate the invivo environment, resulting in metabolic stress during pre-implantation development and reduced blastocyst quality. We hypothesised that IVC-induced metabolic dysregulation in bovine embryos is mediated by changes in expression and/or activity of protein biomarkers associated with key metabolic pathways. Our objectives were to determine (1) expression of enzymes involved in glycolysis (HK-2, PKM2, LDHA, B and C isoforms), entry into the tricarboxylic acid (TCA) cycle (PDH), energy sensing/fatty acid oxidation (AMPK), and the metabolic signalling pathways (AKT, ERK, STAT3, 4EBP1) at the 1-cell (1C), 8- to 16-cell (8–16 C), and Day 7 blastocyst (d7BL) stage; and (2) evaluate the functional activity of these proteins both invivo (superovulated and flushed) and invitro (IVM/IVF/IVC) produced embryos using capillary Western blot (Protein-Simple, JESS; n=1 embryo/stage; n=3 replicates). For each protein, expression was normalized with total protein abundance in the same capillary and functional activity was determine based on the ratio of phosphorylated (p) to total (t) protein abundance in each sample. Data were analysed using a two-sample t-test. Results demonstrated significantly (P&lt;0.05) decreased LDHB expression at 1C, decreased functional activity of PDH at 8–16 C, and a trend (P&lt;0.09) for decreased activity of PDH and PKM2 enzymes in 1C embryos produced invitro. These results suggest a reduced ability of PKM2 to produce pyruvate in glycolysis, as well as reduced ability of LDHB to reversibly convert pyruvate into lactate and of PDH to convert pyruvate into acetyl-CoA for metabolism in the TCA cycle, indicating an overall slowing of aerobic metabolism. In contrast, expression of STAT3 and ERK1/2 in all stages examined, AKT in 8–16C and d7BL, and 4EBP1 in d7BL were significantly (P&lt;0.05) higher in IVP embryos. In addition to expression, decreased (P&lt;0.05) activity of ERK1/2, AKT, and 4EBP1 signalling at 1C, and a trend (P&lt;0.08) for decreased expression of 4EBP in 8–16C and d7BL produced invitro was observed. Activated AKT signalling enhances glucose uptake by stimulating hexokinase. Because the activity of glycolytic enzymes (PKM2, LDHB, PDH) is reduced at the 1-cell stage invitro, these embryos may be shifting metabolism to the pentose phosphate pathway, which might increase the ability of the embryo to protect against oxidative stress induced by the IVC environment. We observed a remarkable change in metabolic enzyme expression and activity invitro as early as the 1C stage, suggesting that bovine embryos are highly susceptible to metabolic stress even at this early stage of development. Collectively, these results point to specific abnormalities of metabolism in IVP embryos and suggest that differentially expressed proteins and their functional activity can be used as biomarkers in optimizing culture conditions to produce high-quality embryos invitro that more closely resemble their invivo counterparts.

Tuberculosis/HIV coinfection from the perspective of quality of life: scope review

ABSTRACT Objectives: to analyze evidence on the quality of life of people with tuberculosis/HIV coinfection. Methods: review that followed steps of the Cochrane Collaboration, with the search of publications in the bases Embase, LILACS, PubMed, and Cochrane, through the descriptors “HIV,” “Tuberculosis,” and “Quality of Life,” without a temporal cut. Results: the results include 15 studies, published between 2009 and 2019, with the level of evidence V, in its majority. It was observed that there is no uniformity in the instrument used. Psychological support to this group and strengthening of actions to manage both infections are necessary. This segment’s quality of life is associated with social factors and scientific production on the subject concentrated in underdeveloped countries. Conclusions: the articles found have a low level of scientific evidence and indicate that people who experience coinfection have a more compromised quality of life when compared to those who experience tuberculosis or HIV separately.

A high-throughput screening platform to identify nanocarriers for efficient delivery of RNA-based therapies

RNA-based therapies are highly selective and powerful regulators of biological functions. Non-viral vectors such as nanoparticles (NPs) are very promising formulations for the delivery of RNA-based therapies but their cell targeting, cell internalization and endolysomal escape capacity is rather limited. Here, we present a methodology that combines high-throughput synthesis of light-triggerable NPs and a high-content imaging screening to identify NPs capable of efficiently delivering different type of RNAs. The NPs were generated using polymers synthesized by Michael type addition reactions and they were designed to: (i) efficiently complex coding (mRNAs) and non-coding (miRNAs and/or lncRNAs) RNA molecules, (ii) allow rapid cell uptake and cytoplasmic release of RNA molecules and (iii) target different cell types based on their composition. Furthermore, light-responsive domains were attached to the polymers by distinctive methods to provide diverse disassembly strategies. The most efficient formulations were identified using cell-based assays and high-content imaging analysis. This strategy allows precise delivery of RNA-based therapies and provides an effective design approach to address critical issues in non-viral gene delivery.

Native and bioengineered extracellular vesicles for cardiovascular therapeutics

Extracellular vesicles (EVs) are a heterogeneous group of natural particles that are relevant to the treatment of cardiovascular diseases. These endogenous vesicles have certain properties that allow them to survive in the extracellular space, bypass biological barriers and deliver their biologically active molecular cargo to recipient cells. Moreover, EVs can be bioengineered to increase their stability, bioactivity, presentation to acceptor cells and capacity for on-target binding at both cell-type-specific and tissue-specific levels. Bioengineering of EVs involves the modification of the donor cell before EV isolation or direct modification of the EV properties after isolation. The therapeutic potential of native EVs and bioengineered EVs has been only minimally explored in the context of cardiovascular diseases. Efforts to harness the therapeutic potential of EVs will require innovative approaches and a comprehensive integration of knowledge gathered from decades of research into molecular-compound delivery. In this Review, we outline the endogenous properties of EVs that make them natural delivery agents as well as the features that can be improved by bioengineering. We also discuss the therapeutic applications of native and bioengineered EVs to cardiovascular diseases and examine the opportunities and challenges that need to be addressed to advance this research area, with an emphasis on clinical translation.

The care for the persistent family aggressor in the perception of nursing students

OBJECTIVE

to analyze the perception of nursing students about the care given to the persistent family aggressor.

METHOD

a descriptive study, with a qualitative approach. Madeleine Leininger's Theory of Diversity and Universality of Care was used as a theoretical reference. The data collection took place with 37 in the last year of at a public university in Southeast Brazil. We used the technique of Projective Design with a Topic and semi-structured interview. The data were analyzed with the content analysis.

RESULTS

the examination of the narratives underpinned the construction of four categories: The care of the aggressor with the family, Recognition of family values and culture, The search for knowledge to care for the aggressor and family, Multidisciplinary and intersectoral care to confront violence.

CONCLUSION

there is an acknowledgment that the care for the aggressor should not only be individual but should involve all those affected. For this, multidisciplinary work is important, and the search for knowledge on the subject is essential for culturally significant care.

Interfaces of vulnerability dimensions in violence against children

OBJECTIVE

present and discuss the potential use of the concept of vulnerability for the development of practices to address violence against children.

METHOD

this is a theoretical study that presents the characteristics of the phenomenon of violence against children, to which the concept of vulnerability is applied.

RESULTS

proposal of a framework for the analysis of violence against children in the perspective of vulnerability, creating individual and collective dimensions. Violence against children, when analyzed in the perspective of this concept, broadens the understanding of this phenomenon, as it exposes aspects and conditions from outside the family that are co-responsible for the occurrence of this phenomenon.

CONCLUSION

developing studies to identify the vulnerability of children to violence is essential for the development of practices to address this issue.

A SOX2 Reporter System Identifies Gastric Cancer Stem-Like Cells Sensitive to Monensin

Gastric cancer remains a serious health burden with few therapeutic options. Therefore, the recognition of cancer stem cells (CSCs) as seeds of the tumorigenic process makes them a prime therapeutic target. Knowing that the transcription factors SOX2 and OCT4 promote stemness, our approach was to isolate stem-like cells in human gastric cancer cell lines using a traceable reporter system based on SOX2/OCT4 activity (SORE6-GFP). Cells transduced with the SORE6-GFP reporter system were sorted into SORE6+ and SORE6- cell populations, and their biological behavior characterized. SORE6+ cells were enriched for SOX2 and exhibited CSC features, including a greater ability to proliferate and form gastrospheres in non-adherent conditions, a larger in vivo tumor initiating capability, and increased resistance to 5-fluorouracil (5-FU) treatment. The overexpression and knockdown of SOX2 revealed a crucial role of SOX2 in cell proliferation and drug resistance. By combining the reporter system with a high-throughput screening of pharmacologically active small molecules we identified monensin, an ionophore antibiotic, displaying selective toxicity to SORE6+ cells. The ability of SORE6-GFP reporter system to recognize cancer stem-like cells facilitates our understanding of gastric CSC biology and serves as a platform for the identification of powerful therapeutics for targeting gastric CSCs.

The aging of families with members with intellectual disabilities

OBJECTIVE

to understand the structure and dynamics of families in the late stage of the life cycle that have a member with intellectual disability.

METHOD

qualitative research using the Calgary Family Assessment Model as methodological framework. The study had 38 participants, distributed into 10 families that had a member with intellectual disability and whose parents were elderly. The interviews were analyzed with content analysis technique.

RESULTS

the following analytical categories were evidenced: "living with intellectual disability", "communication as a strategy for encounter", "family isolation and the need for support" and "concerns about care in the future".

CONCLUSION

families in the late life cycle who had a member with intellectual disability are arranged in a structure that overloads a single caregiver (mother), has little support network, uses communication as an instrument for understanding themselves and the other, besides having difficulties in projecting the future.

Sociodemographic and health profile of TB/HIV co-infection in Brazil: a systematic review

OBJECTIVE

to ascertain the epidemiological profile of TB/HIV co-infection in Brazilian scenarios.

METHOD

this is a systematic review conducted via electronic search in databases PubMed, EMBASE, LILACS and SciELO, having as inclusion criterion articles based on the Brazilian scenario of TB/HIV co-infection.

RESULTS

of the total 174 studies, 15 were selected, revealing the epidemiological profile of the co-infection in different scenarios: male, economically active age, low education level, brown/black ethnicity, low income, heterosexual, pulmonary clinical form, alcoholism and Directly Observed Therapy.

CONCLUSION

the sociodemographic and epidemiological profile of people with TB/HIV co-infection has an expected occurrence pattern, which corroborates articles found in the literature, either at national level or by grouping the studies according to region or state.

A High-Throughput Screening Method to Identify Compounds Displaying Human Vascular Embryonic Toxicity

This article describes a screening platform to identify compounds that affect human embryonic vascular development. The procedure comprises the generation of human embryonic-like endothelial cells (ECs) from human pluripotent stem cells (hPSCs) and subsequent maturation under arterial flow conditions; the use of these cells for the high-throughput screening of small molecules that specifically inhibit the survival of embryonic-like ECs; the confirmation of the hits in embryonic-like ECs cultured under flow shear stress; and final validation in mouse embryonic ECs. The embryonic-like ECs express embryonic genes including DLL1, EPHB2, LYN, TEK, ID1, NRP2, CAST, FLT1, IGF1, DKK3, NIN, LEF1, and SORBS3. The entire screening procedure (without the validation step) can be completed within 1 month. This platform is an alternative/complement to standard animal protocols for assessing the effects of chemicals on embryonic vascular development. © 2019 by John Wiley & Sons, Inc.

Comprehensiveness in the perspective of public health: pathways for the training of the nurse

OBJECTIVE

to present an academic practice experienced by professors in a curricular unit of the public health field entitled "Comprehensive health care", offered in the undergraduate nursing course of a public university.

METHODS

experience report of dialogic activities between professors and undergraduates.

RESULTS

it was possible to discuss nursing care from the perspective of comprehensiveness, which allowed the understanding of the need to broaden the scope regarding the practices conducted in primary care and enabled the attribution of new meanings to the actions experienced by undergraduate students in their curricular internships; thus, contributing to the training of a professional with critical and creative capacity.

FINAL CONSIDERATIONS

the students were able to understand that quality care should go beyond complaint-behavior, providing care based on a networked health service structure aligned with SUS policies and programs.

From fiber curls to mesh waves: a platform for the fabrication of hierarchically structured nanofibers mimicking natural tissue formation

Bioinstructive scaffolds for regenerative medicine are characterized by intrinsic properties capable of directing cell response and promoting wound healing. The design of such scaffolds requires the incorporation of well-defined physical properties that mimic the native extracellular matrix (ECM). Here, inspired by epithelial tissue morphogenesis, we present a novel approach to code nanofiber materials with controlled hierarchical wavy structures resembling the configurations of native EMC fibers through using thermally shrinking materials as substrates onto which the fibers are deposited. This approach could serve as a platform for fabricating functional scaffolds mimicking various tissues such as trachea, iris, artery wall and ciliary body. Modeling affirms that the mechanical properties of the fabricated wavy fibers could be regulated through varying their wavy patterns. The nanofibrous scaffolds coded with wavy patterns show an enhanced cellular infiltration. In addition, we further investigated whether the wavy patterns could regulate transforming growth factor-beta (TGF-β) production, a key signalling pathway involved in connective tissue development. Our results demonstrated that nanofibrous scaffolds coded with wavy patterns could induce TGF-β expression without the addition of a soluble growth factor. Our new approach could open up new avenues for fabricating bioinstructive scaffolds for regenerative medicine.

O cuidado do agressor familiar frequente: revisão integrativa da literatura

Resumo Objetivo Identificar as principais literaturas científicas sobre o cuidado prestado ao agressor familiar frequente e apresentar as experiências exitosas mais relevantes. Métodos Revisão integrativa da literatura, com busca de artigos publicados entre os anos de 2008 a 2017, nas bases de dados MEDLINE, CINAHL e SciELO. Resultados Dos 1.496 artigos identificados, 15 atenderam aos critérios de inclusão. A análise desses estudos revelou duas categorias: Fatores intervenientes à agressividade intrafamiliar e Medidas exitosas para cuidado ou reabilitação de agressores familiares. Conclusão Há escassez de produção sobre a temática em países emergentes. Aspectos como padrões intergeracionais e vivência de situações violentas na infância podem ser intervenientes para o comportamento agressivo contra a família. São apontadas como medidas exitosas para o cuidado do agressor familiar a meditação de atenção plena, o aconselhamento pessoal, a melhoria do padrão do sono, participação em programas de prevenção e em formas de psicoterapia.

Xenotransplantation of canine spermatogonial stem cells (cSSCs) regulated by FSH promotes spermatogenesis in infertile mice

Background

Xenotransplantation of spermatogonial stem cells (SSCs) has become a popular topic in various research fields because manipulating these cells can provide insights into the mechanisms associated with germ cell lines and the entire spermatogenesis process; moreover, these cells can be used in several biotechnology applications. To achieve successful xenotransplantation, the in vitro microenvironment in which SSCs are cultured should be an ideal microenvironment for self-renewal and similar to the in vivo testicular microenvironment. The age of the donor, the correct spermatogenesis cycle, and the quality of the donor tissue are also important. Although cell culture-related factors, such as the in vitro supplementation of hormonal factors, are known to promote successful xenotransplantation in mice, little is known about the influence of these factors on SSCs in vitro or in vivo in other mammalian species, such as dogs (Canis lupus familiaris). In this context, the goals of this study were to test the effect of follicle-stimulating hormone (FSH) on canine spermatogonial stem cell (cSSC) cultures since this hormone is related to the glial cell-derived neurotrophic factor (GDNF) signaling pathway, which is responsible for the self-renewal and maintenance of these cells in vivo, and to investigate the microenvironment of the SSC culture after FSH supplementation. Additionally, in vivo analyses of transplanted FSH-supplemented cSSCs in the testes of infertile mice were performed to assess the capacity of cSSCs to develop, maintain, and restore spermatogenesis.

Methods

SSCs from canine prepubertal testes (aged 3 months) were cultured in vitro in the presence of FSH (10 IU L⁻¹). GFRA1 transcript expression was detected to confirm the spermatogonia population in culture and the effect of FSH on these cells. The protein and transcript levels of late germ cell markers (GFRA1, DAZL, STRA8, PLZF, and CD49f) and a pluripotency marker (OCT4) were detected at 72 and 120 h to confirm the cSSC phenotype. In vivo experiments were performed by transplanting GFP+ cSSCs into infertile mice, and a 10-week follow-up was performed. Histological and immunofluorescence analyses were performed to confirm the repopulation capacity after cSSC xenotransplantation in the testis.

Results

Supplementation with FSH in cell culture increased the number of cSSCs positive for GFRA1. The cSSCs were also positive for the pluripotency and early germline marker OCT4 and the late germline markers PLZF, DAZL, C-kit, and GFRA-1. The in vivo experiments showed that the cSSCs xenotransplanted into infertile mouse testes were able to repopulate germline cells in the seminiferous tubules of mice.

Conclusions

In conclusion, our results showed for the first time that the treatment of cSSC cultures with FSH can promote in vitro self-renewal, increase the population of germline cells, and possibly influence the success of spermatogenesis in infertile mice in vivo.

Policies or knowledge: priors differ between a perceptual and sensorimotor task

If the brain abstractly represents probability distributions as knowledge, then the modality of a decision, e.g., movement vs. perception, should not matter. If, on the other hand, learned representations are policies, they may be specific to the task where learning takes place. Here, we test this by asking whether a learned spatial prior generalizes from a sensorimotor estimation task to a two-alternative-forced choice (2-Afc) perceptual comparison task. A model and simulation-based analysis revealed that while participants learn prior distribution in the sensorimotor estimation task, measured priors are consistently broader than sensorimotor priors in the 2-Afc task. That the prior does not fully generalize suggests that sensorimotor priors are more like policies than knowledge. In disagreement with standard Bayesian thought, the modality of the decision has a strong influence on the implied prior distributions. NEW & NOTEWORTHY We do not know whether the brain represents abstract and generalizable knowledge or task-specific policies that map internal states to actions. We find that learning in a sensorimotor task does not generalize strongly to a perceptual task, suggesting that humans learned policies and did not truly acquire knowledge. Priors differ across tasks, thus casting doubt on the central tenet of many Bayesian models, that the brain's representation of the world is built on generalizable knowledge.

The role of ENPP1/PC-1 in osteoinduction by calcium phosphate ceramics

In the past decade, calcium phosphate (CaP) ceramics have emerged as alternatives to autologous bone grafts for the treatment of large, critical-sized bone defects. In order to be effective in the regeneration of such defects, ceramics must show osteoinductive behaviour, defined as the ability to induce de novo heterotopic bone formation. While a set of osteoinductive CaP ceramics has been developed, the exact processes underlying osteoinduction, and the role of the physical and chemical properties of the ceramics, remain largely unknown. Previous studies have focused on the role of the transcriptome to shed light on the mechanism of osteoinduction at the mRNA level. To complement these studies, a proteomic analysis was performed to study the behaviour of hMSCs on osteoinductive and non-osteoinductive CaPs. The results of this analysis suggest that plasma cell glycoprotein 1 (PC-1), encoded by the ectonucleotide pyrophosphatase/phosphodiesterase 1 (ENPP1) gene, plays a key role in the process of osteoinduction by CaP ceramics. Validation experiments have confirmed that indeed, the mRNA expression of ENPP1 and the production of PC-1 are higher on osteoinductive than on non-osteoinductive CaP ceramics, a trend that was also observed for other osteogenic markers such as bone morphogenetic protein 2 (BMP2) and osteopontin (OPN), but not for alkaline phosphatase (ALP). Our results also showed that the expression of PC-1 is restricted to those cells which are in direct contact with the CaP ceramic surface, plausibly due to the localised depletion of calcium and inorganic phosphate ions from the supersaturated cell culture medium as CaP crystallises on the ceramic surface. Replicating the surface of the osteoinductive ceramic in polystyrene resulted in a significant decrease in ENPP1 expression, suggesting that surface structural properties alone are not sufficient to induce ENPP1 expression. Finally, knocking down ENPP1 expression in hMSCs resulted in increased BMP2 expression, both at the mRNA and protein level, suggesting that ENPP1 is a negative regulator of BMP-2 signalling. Taken together, this study shows, for the first time, that ENPP1/PC-1 plays an important role in CaP-induced osteogenic differentiation of hMSCs and thus possibly osteoinduction by CaP ceramics. Furthermore, we have identified a crucial role for the interfacial (chemical) events occurring on the CaP ceramic surface in the process of osteoinduction. This knowledge can contribute to the development of new bone graft substitutes, with improved osteoinductive potential.