Comparative connectomics of the descending and ascending neurons of the Drosophila nervous system: stereotypy and sexual dimorphism.

In most complex nervous systems there is a clear anatomical separation between the nerve cord, which contains most of the final motor outputs necessary for behaviour, and the brain. In insects, the neck connective is both a physical and information bottleneck connecting the brain and the ventral nerve cord (VNC, spinal cord analogue) and comprises diverse populations of descending (DN), ascending (AN) and sensory ascending neurons, which are crucial for sensorimotor signalling and control. Integrating three separate EM datasets, we now provide a complete connectomic description of the ascending and descending neurons of the female nervous system of Drosophila and compare them with neurons of the male nerve cord. Proofread neuronal reconstructions have been matched across hemispheres, datasets and sexes. Crucially, we have also matched 51% of DN cell types to light level data defining specific driver lines as well as classifying all ascending populations. We use these results to reveal the general architecture, tracts, neuropil innervation and connectivity of neck connective neurons. We observe connected chains of descending and ascending neurons spanning the neck, which may subserve motor sequences. We provide a complete description of sexually dimorphic DN and AN populations, with detailed analysis of circuits implicated in sex-related behaviours, including female ovipositor extrusion (DNp13), male courtship (DNa12/aSP22) and song production (AN hemilineage 08B). Our work represents the first EM-level circuit analyses spanning the entire central nervous system of an adult animal.

Suicidal thoughts and behaviours in body dysmorphic disorder: Prevalence and correlates in a sample of mental health service users in the UK.

BACKGROUND: Previous research indicates an association of body dysmorphic disorder (BDD) with suicidal thoughts and behaviours, but has largely relied on small cohorts drawn from specialist clinics. METHODS: Anonymised health-records from the South London and Maudsley NHS Foundation Trust between 2007 and 2019 were systematically searched using the Clinical Record Interactive Search data system. RESULTS: 298 patients diagnosed with BDD between age 12 and 65 years were identified. 206 (69 %) had experienced lifetime suicidal ideation. 149 (50 %) had recorded lifetime acts of self-harm or suicide attempts, most commonly involving cutting and self-poisoning. Rates of self-harm/suicide attempts were similar in those diagnosed before or after 18 years. Comorbid depression was associated with suicidal ideation (OR: 4.26 95% CI 2.07-9.72). Additionally, comorbid depression, OCD and anxiety were all associated with self-harm/suicide attempts (OR: 1.94 95% CI 1.15-3.31, OR: 1.99 95% CI 1.09-3.73, and OR: 1.93 95% CI 1.09-3.45, respectively). The presence of two or more psychiatric comorbidities was associated with a significantly elevated likelihood of suicidal ideation (OR: 7.06 95% CI 2.80-21.7) and self-harm/suicide attempts (OR: 4.62 95% CI 2.32-9.62). LIMITATIONS: It is likely that BDD was under-diagnosed in the cohort, and those identified may not be representative. Additionally, the frequency and detail with which suicidal thoughts and behaviours were assessed varied and may also represent underestimates. CONCLUSIONS: Suicidal ideation and self-harm/suicide attempts are common among individuals with BDD accessing mental health services. Psychiatric comorbidity and suicidal ideation should be assessed in all BDD patients.

Neurotransmitter classification from electron microscopy images at synaptic sites in Drosophila melanogaster.

High-resolution electron microscopy of nervous systems has enabled the reconstruction of synaptic connectomes. However, we do not know the synaptic sign for each connection (i.e., whether a connection is excitatory or inhibitory), which is implied by the released transmitter. We demonstrate that artificial neural networks can predict transmitter types for presynapses from electron micrographs: a network trained to predict six transmitters (acetylcholine, glutamate, GABA, serotonin, dopamine, octopamine) achieves an accuracy of 87% for individual synapses, 94% for neurons, and 91% for known cell types across a D. melanogaster whole brain. We visualize the ultrastructural features used for prediction, discovering subtle but significant differences between transmitter phenotypes. We also analyze transmitter distributions across the brain and find that neurons that develop together largely express only one fast-acting transmitter (acetylcholine, glutamate, or GABA). We hope that our publicly available predictions act as an accelerant for neuroscientific hypothesis generation for the fly.

Generalized Resistance Deficits in inmates with hypertension: missing resources that limit health.

OBJECTIVE: to understand the Generalized Resistance Deficits of people deprived of liberty with hypertension in a Brazilian prison unit. METHOD: qualitative research, anchored in Salutogenesis, carried out with 38 people with hypertension from a Brazilian prison unit, from February to July 2022, with a semi-structured interview with open-ended questions, whose analysis was thematic, explaining the limitations to health in prison. RESULTS: 13 Generalized Resistance Deficits were reported, mostly related to the prison environment and, to a lesser extent, to the social group and the individual, respectively. Living in prison for people with hypertension implies living with a high number of Generalized Resistance Deficits, accentuating the movement towards the disease pole. FINAL CONSIDERATIONS: knowing Generalized Resistance Deficits allows directing health promotion to support the use of available Generalized Resistance Resources and contributes to the expansion of intersectoral policies.

AI-Enhanced evaluation of YouTube content on post-surgical incontinence following pelvic cancer treatment.

Background: Several pelvic area cancers exhibit high incidence rates, and their surgical treatment can result in adverse effects such as urinary and fecal incontinence, significantly impacting patients' quality of life. Post-surgery incontinence is a significant concern, with prevalence rates ranging from 25 to 45% for urinary incontinence and 9-68% for fecal incontinence. Cancer survivors are increasingly turning to YouTube as a platform to connect with others, yet caution is warranted as misinformation is prevalent. Objective: This study aims to evaluate the information quality in YouTube videos about post-surgical incontinence after pelvic area cancer surgery. Methods: A YouTube search for "Incontinence after cancer surgery" yielded 108 videos, which were subsequently analyzed. To evaluate these videos, several quality assessment tools were utilized, including DISCERN, GQS, JAMA, PEMAT, and MQ-VET. Statistical analyses, such as descriptive statistics and intercorrelation tests, were employed to assess various video attributes, including characteristics, popularity, educational value, quality, and reliability. Also, artificial intelligence techniques like PCA, t-SNE, and UMAP were used for data analysis. HeatMap and Hierarchical Clustering Dendrogram techniques validated the Machine Learning results. Results: The quality scales presented a high level of correlation one with each other (p < 0.01) and the Artificial Intelligence-based techniques presented clear clustering representations of the dataset samples, which were reinforced by the Heat Map and Hierarchical Clustering Dendrogram. Conclusions: YouTube videos on "Incontinence after Cancer Surgery" present a "High" quality across multiple scales. The use of AI tools, like PCA, t-SNE, and UMAP, is highlighted for clustering large health datasets, improving data visualization, pattern recognition, and complex healthcare analysis.

May-Thurner Syndrome: The Worst-Case Scenario.

May-Thurner syndrome (MTS) is caused by compression of the left common iliac vein by the right common iliac artery against the spinal column. It can range from asymptomatic or present with subtle and unspecific signs and symptoms and rarely exhibit severe complications such as pulmonary embolism (PE). The diagnosis is confirmed by typical imaging findings. Treatment may include conservative measures, anticoagulation, endovascular or even surgical options. We report the case of a 20-year-old female who presented with cardiac arrest caused by an acute massive PE. Further study showed partial thrombosis of the internal iliac veins resulting from MTS. She continued anticoagulation therapy with low-molecular-weight heparin and then switched to edoxaban with a good clinical outcome. She was also referred to Vascular Surgery to discuss the possibility of iliac vein stenting. Abdominopelvic vascular compression syndromes include a large spectrum of conditions, and they are rarely considered as an etiology for venous thromboembolism. The clinical presentation of PE varies with several triggering factors and atypical presentation is more common in nonmalignant causes. The combination of noninvasive and invasive imaging modalities might be beneficial to establish a definitive diagnosis. Nevertheless, invasive procedures are often restricted to doubtful cases or to guide endovascular procedures which is the current treatment of choice. There is little evidence using nonvitamin K oral anticoagulants, but there are some case reports detailing their successful use. This case aims to point out the need for a profound understanding of different causes of deep vein and pulmonary thromboembolism; common entities in our practice but with a variety of clinical presentations and potentially caused by rare underlying conditions. MTS can be the origin of serious and deadly complications, hence the importance of early recognition and treatment.

A roadmap towards manufacturing extracellular vesicles for cardiac repair.

For the past two decades researchers have linked extracellular vesicle (EV)-mediated mechanisms to various physiological and pathological processes in the heart, such as immune response regulation, fibrosis, angiogenesis, and the survival and growth of cardiomyocytes. Although use of EVs has gathered momentum in the cardiac field, several obstacles in both upstream and downstream processes during EV manufacture need to be addressed before clinical success can be achieved. Low EV yields obtained in small-scale cultures deter clinical translation, as mass production is a prerequisite to meet therapeutic doses. Moreover, standardizing EV manufacture is critical given the inherent heterogeneity of EVs and the constraints of current isolation techniques. In this review, we discuss the critical steps for the large-scale manufacturing of high-potency EVs for cardiac therapies.

Differential impact of diesel exhaust particles on glutamatergic and dopaminergic neurons in Caenorhabditis elegans: A neurodegenerative perspective.

The growing body of evidence links exposure to particulate matter pollutants with an increased risk of neurodegenerative diseases. In the present study, we investigated whether diesel exhaust particles can induce neurobehavioral alterations associated with neurodegenerative effects on glutamatergic and dopaminergic neurons in Caenorhabditis elegans (C. elegans). Exposure to DEP at concentrations of 0.167 µg/cm2 and 1.67 µg/cm2 resulted in significant developmental delays and altered locomotion behaviour. These effects were accompanied by discernible alterations in the expressions of antioxidant genes sod-3 and gst-4 observed in transgenic strains. Behaviour analysis demonstrated a significant reduction in average speed (p < 0.001), altered paths, and decreased swimming activities (p < 0.01), particularly at mid and high doses. Subsequent assessment of neurodegeneration markers in glutamatergic (DA1240) and dopaminergic (BZ555) transgenic worms revealed notable glutamatergic neuron degeneration at 0.167 µg/cm2 (∼30 % moderate, ∼20 % advanced) and 1.67 µg/cm2 (∼28 % moderate, ∼24 % advanced, p < 0.0001), while dopaminergic neurons exhibited structural deformities (∼16 %) without significant degeneration in terms of blebs and breaks. Furthermore, in silico docking simulations suggest the presence of an antagonistic competitive inhibition induced by DEP in the evaluated neuro-targets, stronger for the glutamatergic transporter than for the dopaminergic receptor from the comparative binding affinity point of view. The results underscore DEP's distinctive neurodegenerative effects and suggest a link between locomotion defects and glutamatergic neurodegeneration in C. elegans, providing insights into environmental health risks assessment.

In vitro and in vivo evaluation of novel chromeno[2,3-d]pyrimidinones as therapeutic agents for triple negative breast cancer.

Triple-negative breast cancer (TNBC) is the most aggressive subtype of breast cancer, and the limited therapeutic options show poor efficacy in patients, associated to severe side effects and development of resistance. Considering that chromene-based scaffolds proved to be attractive candidates for cancer therapy, herein we prepared new chromeno[2,3-d]pyrimidinone derivatives by a simple two step procedure, starting from the reaction of cyanoacetamide and a salicylaldehyde. A cell viability screening in several breast cancer cell lines allowed to identify two promising compounds with IC50 values in the low micromolar range for TNBC cells. These chromenes inhibited cell proliferation, induced cell cycle arrest and triggered cell death through apoptosis. In vivo studies revealed a safe profile in invertebrate and vertebrate animal models and confirmed their capacity to inhibit tumor growth in the CAM model, inducing significant tumor regression after 4 days of treatment. The two compounds identified in this study are promising drug candidates for TNBC treatment and valuable hits for future optimization, using the versatile synthetic platform that was developed.

Longitudinal tracking of diet quality from childhood to adolescence: The Interplay of individual and sociodemographic factors.

This study aimed to examine diet tracking from childhood to adolescence, using 4 time-points, and the influence of socioeconomic and individual characteristics in this transition. The sample included 6893 children from the Portuguese birth cohort Generation XXI with complete information on Food Frequency Questionnaire in at least one of the considered follow-ups. A Healthy Eating Index (HEI), previously developed to assess adherence to WHO's dietary recommendations, was applied at all ages (4, 7, 10 and 13y). The intraclass correlation coefficient (ICC) was used to analyse the tracking of diet quality. Linear mixed-effect models were performed to estimate the association of the child's socioeconomic and individual characteristics with the HEI score and respective trajectories over time. The overall diet quality decreased from childhood (22.2 ± 3.6 at 4y) to adolescence (18.2 ± 3.9 at 13y), with moderate tracking (ICC = 0.53), showing that children who start a healthy diet earlier might have a better diet quality as time goes by. Children of older mothers (ß = 0.079, 95%CI = 0.061-0.097) and with higher education (ß = 0.203, 95%CI = 0.178-0.229) and a higher household monthly income (ß = 0.024,95%CI = 0.007-0.041) had a higher diet quality over time. Besides family characteristics, the child's sedentary activities (ß = -0.009, 95%CI = -0.014--0.003) negatively influence diet quality throughout life. In contrast, being a girl (ß = -0.094, 95%CI = -0.132--0.056) and having higher sleep duration (ß = 0.039, 95%CI = 0.015-0.064) are associated with a higher diet quality over time. The presence of dietary tracking from childhood to adolescence implies that promoting healthy eating habits during the first years of life is crucial for a healthier diet quality during late childhood and early adolescence, focusing on maternal and individual child characteristics.

Anorexia Nervosa and Osteoporosis: A Possible Complication to Remember.

Anorexia nervosa (AN) belongs to the spectrum of food disorders and affects approximately 2.9 million people worldwide. It is responsible for numerous and serious medical complications. Osteoporosis is a common complication, and the decrease in bone mineral density (BMD) is one of the few potentially irreversible consequences of AN. When associated with AN, it can manifest at a very young age, possibly leading to irreparable damage. We describe the case of a 30-year-old woman with a one-year evolution diagnosis of AN, complaining of back pain. Physical examination revealed a slight elevation of the right shoulder and pain at compression of paravertebral right dorsal musculature with a palpable strained muscle. Full-length X-ray imaging of the dorsal spine revealed a slight dextroconvex dorsolumbar scoliosis. A dorsal spine computerized tomography (CT) was performed, confirming a fracture of the upper platform of the sixth dorsal vertebrae. Osteodensitometry showed lumbar spine osteoporosis and femoral osteopenia. The decrease in BMD and, later on, the development of osteoporosis can occur in both types of AN. It is a severe complication that affects up to 50% of these patients. It can be irreversible and increase the lifetime risk of bone fractures and, therefore, morbimortality. Low body weight and body mass index (BMI) strongly correlate with the decrease in BMD. Treatment of osteoporosis associated with AN is not standardized and clearly labeled. Weight gain is described as the strategy with the most impact in reversing the loss of bone mass and increasing the BMD. The regularization of gonadal function also seems to independently potentiate the increase of BMD. The occurrence of long bone and vertebrae fractures frequently results in a decrease in height and chronic back pain, culminating in greater morbimortality and healthcare costs. This clinical case aims to show theclose relationship between restrictive food disorders and the decrease of BMD and the subsequent development of osteoporosis and its complications. Although rare in young and healthy people, when associated with restrictive food disorders, it should raise a red flag in its clinical evaluation. Preventing osteoporosis development and reduction of fracture risk in this population is essential. The current absence of consistent evidence regarding screening of osteoporosis in this particular group should raise awareness and promote further larger-scale studies to establish standardized recommendations concerning not only screening but also pharmacological treatment of osteoporosis in patients with AN.

Glucocorticoid receptor-dependent therapeutic efficacy of tauroursodeoxycholic acid in preclinical models of spinocerebellar ataxia type 3.

Spinocerebellar ataxia type 3 (SCA3) is an adult-onset neurodegenerative disease caused by a polyglutamine expansion in the ataxin-3 (ATXN3) gene. No effective treatment is available for this disorder, other than symptom-directed approaches. Bile acids have shown therapeutic efficacy in neurodegenerative disease models. Here, we pinpointed tauroursodeoxycholic acid (TUDCA) as an efficient therapeutic, improving the motor and neuropathological phenotype of SCA3 nematode and mouse models. Surprisingly, transcriptomic and functional in vivo data showed that TUDCA acts in neuronal tissue through the glucocorticoid receptor (GR), but independently of its canonical receptor, the farnesoid X receptor (FXR). TUDCA was predicted to bind to the GR, in a similar fashion to corticosteroid molecules. GR levels were decreased in disease-affected brain regions, likely due to increased protein degradation as a consequence of ATXN3 dysfunction being restored by TUDCA treatment. Analysis of a SCA3 clinical cohort showed intriguing correlations between the peripheral expression of GR and the predicted age at disease onset in presymptomatic subjects and FKBP5 expression with disease progression, suggesting this pathway as a potential source of biomarkers for future study. We have established a novel in vivo mechanism for the neuroprotective effects of TUDCA in SCA3 and propose this readily available drug for clinical trials in SCA3 patients.

Assessing the Quality of YouTube's Incontinence Information after Cancer Surgery: An Innovative Graphical Analysis.

BACKGROUND: Prostate and colorectum cancers rank among the most common cancers, and incontinence is a significant postsurgical issue affecting the physical and psychological well-being of cancer survivors. Social media, particularly YouTube, has emerged as a vital source of health information. While YouTube offers valuable content, users must exercise caution due to potential misinformation. OBJECTIVE: This study aims to assess the quality of publicly available YouTube videos related to incontinence after pelvic cancer surgery. METHODS: A search on YouTube related to "Incontinence after cancer surgery" was performed, and 108 videos were analyzed. Multiple quality assessment tools (DISCERN, GQS, JAMA, PEMAT, and MQ-VET) and statistical analyses (descriptive statistics and intercorrelation tests) were used to evaluate the characteristics and popularity, educational value, quality, and reliability of these videos, relying on novel graphical representation techniques such as Sankey and Chord diagrams. RESULTS: Strong positive correlations were found among quality rating scales, emphasizing agreement. The performed graphical analysis reinforced the reliability and validity of quality assessments. CONCLUSIONS: This study found strong correlations among five quality scales, suggesting their effectiveness in assessing health information quality. The evaluation of YouTube videos consistently revealed "high" quality content. Considering the source is mandatory when assessing quality, healthcare and academic institutions are reliable sources. Caution is advised with ad-containing videos. Future research should focus on policy improvements and tools to aid patients in finding high-quality health content.

Smooth muscle tumours of the uterus: MR imaging malignant predictive features-a 12-year analysis in a referral hospital in Portugal.

PURPOSE: To evaluate the magnetic resonance imaging (MRI) features that may help distinguish leiomyosarcomas from atypical leiomyomas (those presenting hyperintensity on T2-W images equal or superior to 50% compared to the myometrium). MATERIALS AND METHODS: The authors conducted a retrospective single-centre study that included a total of 57 women diagnosed with smooth muscle tumour of the uterus, who were evaluated with pelvic MRI, between January 2009 and March 2020. All cases had a histologically proven diagnosis (31 Atypical Leiomyomas-ALM; 26 Leiomyosarcomas-LMS). The MRI features evaluated in this study included: age at presentation, dimension, contours, intra-tumoral haemorrhagic areas, T2-WI heterogeneity, T2-WI dark areas, flow voids, cyst areas, necrosis, restriction on diffusion-weighted imaging (DWI), apparent diffusion coefficient (ADC) values, signal intensity and heterogeneity after contrast administration in T1-WI, presence and location of unenhanced areas. The association between the MRI characteristics and the histological subtype was evaluated using Chi-Square and ANOVA tests. RESULTS: The MRI parameters that showed a statistically significance correlation with malignant histology and thus most strongly associated with LMS were found to be: irregular contours (p < 0.001), intra-tumoral haemorrhagic areas (p = 0.028), T2-WI dark areas (p = 0.016), high signal intensity after contrast administration (p = 0.005), necrosis (p = 0.001), central location for unenhanced areas (p = 0.026), and ADC value lower than 0.88 × 10-3 mm2/s (p = 0.002). CONCLUSION: With our work, we demonstrate the presence of seven MRI features that are statistically significant in differentiating between LMS and ALM.

From connectome to effectome: learning the causal interaction map of the fly brain.

A long-standing goal of neuroscience is to obtain a causal model of the nervous system. This would allow neuroscientists to explain animal behavior in terms of the dynamic interactions between neurons. The recently reported whole-brain fly connectome [1-7] specifies the synaptic paths by which neurons can affect each other but not whether, or how, they do affect each other in vivo. To overcome this limitation, we introduce a novel combined experimental and statistical strategy for efficiently learning a causal model of the fly brain, which we refer to as the "effectome". Specifically, we propose an estimator for a dynamical systems model of the fly brain that uses stochastic optogenetic perturbation data to accurately estimate causal effects and the connectome as a prior to drastically improve estimation efficiency. We then analyze the connectome to propose circuits that have the greatest total effect on the dynamics of the fly nervous system. We discover that, fortunately, the dominant circuits significantly involve only relatively small populations of neurons-thus imaging, stimulation, and neuronal identification are feasible. Intriguingly, we find that this approach also re-discovers known circuits and generates testable hypotheses about their dynamics. Overall, our analyses of the connectome provide evidence that global dynamics of the fly brain are generated by a large collection of small and often anatomically localized circuits operating, largely, independently of each other. This in turn implies that a causal model of a brain, a principal goal of systems neuroscience, can be feasibly obtained in the fly.

Network Statistics of the Whole-Brain Connectome of Drosophila.

Brains comprise complex networks of neurons and connections. Network analysis applied to the wiring diagrams of brains can offer insights into how brains support computations and regulate information flow. The completion of the first whole-brain connectome of an adult Drosophila, the largest connectome to date, containing 130,000 neurons and millions of connections, offers an unprecedented opportunity to analyze its network properties and topological features. To gain insights into local connectivity, we computed the prevalence of two- and three-node network motifs, examined their strengths and neurotransmitter compositions, and compared these topological metrics with wiring diagrams of other animals. We discovered that the network of the fly brain displays rich club organization, with a large population (30% percent of the connectome) of highly connected neurons. We identified subsets of rich club neurons that may serve as integrators or broadcasters of signals. Finally, we examined subnetworks based on 78 anatomically defined brain regions or neuropils. These data products are shared within the FlyWire Codex and will serve as a foundation for models and experiments exploring the relationship between neural activity and anatomical structure.

Common mental disorders and risk perception in nursing work at covid-19 hospital units / Trastornos mentales comunes y percepción del riesgo en el trabajo de enfermería en unidades hospitalarias exclusivas para covid-19 / Transtornos mentais comuns e percepção de risco no trabalho de enfermagem em unidades hospitalares covid-19

ABSTRACT Objective: to analyze the associations between suspected Common Mental Disorders and risk perception in Nursing work at Covid-19 hospital units and to understand the elements intertwined in these relationships, from the workers' perspective. Method: a parallel-convergent mixed-methods study, carried out with 327 Nursing workers from Covid-19 units in seven hospitals from the state of Rio Grande do Sul, Brazil. The quantitative data were collected through a sociodemographic, work-related and risk perception questionnaire, added to the Self-Reporting Questionnaire and subjected to inferential statistical analysis. The qualitative data were produced through semi-structured interviews and treated in the light of thematic content analysis. Results: in all, 76.4% of the participants reported that their performance during the Covid-19 pandemic considerably or greatly increased the risks in their job. Regarding the risk exposure intensity, the workers consider themselves very exposed to the following risks: Covid-19 infection (51.4%); contaminating their family (45.9%); a family member developing a severe form of Covid-19 (46.5%); suffering psychological harms (47.7%); experiencing sleep (45.9%) or dietary pattern (40.7%) disorders; and isolating themselves from friends and family (48%). All of these variables were associated with suspected Common Mental Disorders. Qualitatively, it was evident that fear was the feeling signaling the intersection between risk perception and mental illness. Conclusion: suspected Common Mental Disorders were associated with the perception of multiple risks, with fear as the main element intertwined in this relationship.

RESUMEN Objetivo: analizar las asociaciones entre sospecha de Trastornos Mentales Comunes y percepción del riesgo en el trabajo de Enfermería en unidades hospitalarias exclusivas para COVID-19 y conocer los elementos entrelazados en estas relaciones, desde la perspectiva de los trabajadores. Método: estudio de métodos mixtos paralelo-convergente, realizado con 327 trabajadores da Enfermería de unidades exclusivas para COVID-19 de siete hospitales del estado de Rio Grande do Sul, Brasil. Los datos cuantitativos se recolectaron por medio de un cuestionario sociodemográfico, laboral y de percepción de riesgos, además de utilizarse el Self-Reporting Questionnaire, y se los sometió a análisis estadístico inferencial. Los datos cualitativos se produjeron por medio de entrevistas semiestructuradas y se los procesó sobre la base de análisis temático de contenido. Resultados: el 76,4% indicó que desempeñarse en la atención a pacientes con Covid-19 aumentó considerablemente o en demasía los riesgos en el trabajo. Con respecto a la intensidad de exposición a los riesgos, los trabajadores consideran estar muy expuestos a los siguientes riesgos: infección por Covid-19 (51,4%); contaminar a su familia (45,9%); que algún familiar desarrolle la forma grave da Covid-19 (46,5%); padecer perjuicios psicológicos (47,7%); sufrir alteraciones en el sueño (45,9) o en los hábitos alimenticios (40,7); u aislarse de familiares y amigos (48%). Todas estas variables demostraron estar asociadas a la sospecha de Trastornos Mentales Comunes. Cualitativamente, se evidenció que el sentimiento que señalizó la intersección entre percepción de riesgo y padecimiento mental fue el miedo. Conclusión: la sospecha de Trastornos Mentales Comunes se asoció a la percepción de múltiples riesgos, donde el miedo fue el principal elemento entrelazado en esa relación.

RESUMO Objetivo: analisar as associações entre a suspeita de Transtornos Mentais Comuns e a percepção de risco no trabalho da enfermagem em unidades hospitalares Covid-19 e conhecer os elementos imbricados nestas relações, na perspectiva dos trabalhadores. Método: estudo de métodos mistos paralelo-convergente, realizado com 327 trabalhadores da enfermagem de unidades Covid-19 de sete hospitais do estado do Rio Grande do Sul, Brasil. Os dados quantitativos foram coletados por meio de um questionário sociodemográfico, laboral e de percepção de riscos, somado ao Self-Reporting Questionnaire e submetidos a analise estatística inferencial. Os dados qualitativos foram produzidos por meio de entrevistas semiestruturadas e tratados à luz da análise temática de conteúdo. Resultados: 76,4% referiram que a atuação na Covid-19 aumentou consideravelmente ou muito os riscos no seu trabalho. No que tange à intensidade de exposição dos riscos, trabalhadores se consideram muito expostos ao risco de infecção por Covid-19 (51,4%); risco de levar a contaminação para sua família (45,9%); risco de que alguém da família desenvolva a forma grave da Covid-19 (46,5%); risco de sofrer danos psicológicos (47,7%); risco de sofrer alterações do sono (45,9); do padrão alimentar (40,7); e de se isolar de amigos e familiares (48%). Todas estas variáveis se mostraram associadas a suspeita de Transtornos Mentais Comuns. Qualitativamente, evidenciou-se que o medo era o sentimento balizador da intersecção entre a percepção de risco e o adoecimento mental. Conclusão: a suspeita de Transtornos Mentais Comuns associou-se à percepção de múltiplos riscos, sendo que o medo foi o principal elemento imbricado nessa relação.

Generalized Resistance Deficits in inmates with hypertension: missing resources that limit health / Déficits de Resistencia Generalizados en reclusos con hipertensión: recursos faltantes que limitan la salud / Déficits Generalizados de Resistência em pessoas presas com hipertensão: recursos ausentes que limitam a saúde

ABSTRACT Objective: to understand the Generalized Resistance Deficits of people deprived of liberty with hypertension in a Brazilian prison unit. Method: qualitative research, anchored in Salutogenesis, carried out with 38 people with hypertension from a Brazilian prison unit, from February to July 2022, with a semi-structured interview with open-ended questions, whose analysis was thematic, explaining the limitations to health in prison. Results: 13 Generalized Resistance Deficits were reported, mostly related to the prison environment and, to a lesser extent, to the social group and the individual, respectively. Living in prison for people with hypertension implies living with a high number of Generalized Resistance Deficits, accentuating the movement towards the disease pole. Final considerations: knowing Generalized Resistance Deficits allows directing health promotion to support the use of available Generalized Resistance Resources and contributes to the expansion of intersectoral policies.

RESUMEN Objetivo: comprender los Déficits de Resistencia Generalizados de personas privadas de libertad con hipertensión arterial sistémica en una unidad penitenciaria brasileña. Método: investigación cualitativa, anclada en la Salutogénesis, realizada con 38 personas con hipertensión arterial sistémica de una unidad penitenciaria brasileña, de febrero a julio de 2022, con entrevista semiestructurada con preguntas abiertas, cuyo análisis fue temático, explicando las limitaciones a la salud en prisión. Resultados: se reportaron 13 Déficits de Resistencia Generalizados, en su mayoría relacionados con el ambiente penitenciario y, en menor medida, con el grupo social y el individuo, respectivamente. Vivir en prisión para personas con hipertensión arterial sistémica implica vivir con un elevado número de Déficits de Resistencia Generalizados, acentuando el movimiento hacia el polo de la enfermedad. Consideraciones finales: conocer los Déficits de Resistencia Generalizada permite orientar la promoción de la salud para apoyar el uso de los Recursos de Resistencia Generalizada disponibles y contribuye a la ampliación de políticas intersectoriales.

RESUMO Objetivo: apreender os Déficits Generalizados de Resistência de pessoas privadas de liberdade com hipertensão arterial sistêmica de uma unidade prisional brasileira. Método: pesquisa qualitativa, ancorada na Salutogênese, realizada com 38 pessoas com hipertensão arterial sistêmica de uma unidade prisional brasileira, de fevereiro a julho de 2022, com entrevista semiestruturada de questões abertas, cuja análise foi temática, explicitando os limitantes à saúde na prisão. Resultados: foram relatados 13 Déficits Generalizados de Resistência, relacionando-se em maioria ao ambiente prisional e, em menor proporção, ao grupo social e ao indivíduo, respectivamente. O viver na prisão para pessoas com hipertensão arterial sistêmica implica conviver com elevado número de Déficits Generalizados de Resistência, acentuando o movimento em direção ao polo doença. Considerações finais: conhecer os Déficits Generalizados de Resistência permite direcionar a promoção da saúde para apoiar o uso dos Recursos Generalizados de Resistência disponíveis e contribui com a ampliação de políticas intersetoriais.

Reproductive seasonality of hair rams under tropical conditions: an alternative for non-seasonal lamb production?

Reproductive seasonality limits the periods of breeding on the year and, therefore, productive output. However, some breeds appear as probably non-seasonal. The aim of the study was to characterize the seasonal pattern of Santa Inês rams, including an ultrasound characterization of the reproductive tract, testosterone concentrations, and semen characteristics. Fifteen Santa Inês rams remained in a grazing system with concentrate supplementation, and measurements of the reproductive tract and ultrasound evaluation (biometrics and pixel intensity) of the testicles and accessory sex glands were monthly recorded. Computerized seminal evaluations were also performed monthly, and serum testosterone concentration was measured every 15 days. Body weight and condition remained stable throughout the year. In general, reproductive traits varied along the year and reached maximum values during autumn and minimum in spring. Despite that, as fresh semen remained with enough quality to breed all along the year, seasonality does not appear as a limiting factor to breed along the year. Therefore, Santa Inês rams can be used for all-year-round breeding or for crossbreeding when rams from other breeds decrease their fertilizing ability.

Sociodemographic, clinical and survival profile of adult metastatic patients.

OBJECTIVE: To characterize the sociodemographic, clinical and survival profile of adult metastatic patients. METHOD: Retrospective cross-sectional study, with secondary data from an oncology care unit, analyzed using logistic regression, Chi-Square test and Fisher's exact test, Kaplan-Meier and Log-Rank tests. RESULTS: From the 678 patients, male gender, mean age 59.54 years old and low education level prevailed. The mean time between diagnosis and initiation of treatment was 89.50 days (± 58.87). Increased risk of primary cancer in the digestive tract (OR 1.42). Prevalence of adenocarcinoma (OR 1.53) and metastasis to bone (OR 2.59), lymph nodes (OR 1.75), liver and peritoneum (OR 1.42). The mean overall survival was 4.16 months and a median of 3.0 months. CONCLUSION: The main primary site was the digestive system, and the identification of metastases was predominantly unifocal liver in both genders. Overall patient survival was reduced by cancer progression.