The myosin chaperone UNC-45 has an important role in maintaining the structure and function of muscle sarcomeres during adult aging.

C. elegans undergo age-dependent declines in muscle organization and function, similar to human sarcopenia. The chaperone UNC-45 is required to fold myosin heads after translation and is likely used for refolding after thermally- or chemically-induced unfolding. UNC-45's TPR region binds HSP-90 and its UCS domain binds myosin heads. We observe early onset sarcopenia when UNC-45 is reduced at the beginning of adulthood. There is sequential decline of HSP-90, UNC-45, and MHC B myosin. A mutation in age-1 delays sarcopenia and loss of HSP-90, UNC-45, and myosin. UNC-45 undergoes age-dependent phosphorylation, and mass spectrometry reveals phosphorylation of six serines and two threonines, seven of which occur in the UCS domain. Additional expression of UNC-45 results in maintenance of MHC B myosin and suppression of A-band disorganization in old animals. Our results suggest that increased expression or activity of UNC-45 might be a strategy for prevention or treatment of sarcopenia.

Nurses' perception of the nursing process and its relationship with leadership.

OBJECTIVES: to describe Nurses' perception of the Nursing Process and its relationship with leadership. METHODS: action research conducted between September/2021 and April/2022 with nurses from a medium-sized hospital in southern Brazil. The data investigated, one of the stages of the method, was collected using the Focus Group technique and submitted to Strategic Focus Analysis. RESULTS: three categories emerged from the organized and analyzed data, namely: Nursing Process: a tool that qualifies nursing care; Conditions that weaken the Nursing Process; and Strategies that enhance the Systematization of Nursing Care. FINAL CONSIDERATIONS: the perception of the Nursing Process and its relationship with leadership are not always understood as complementary themes. Although they recognize that the Nursing Process is sometimes imposed as normative, nurses do not perceive the importance of the role of the leader, who is considered a key player in conducting and boosting the Systematization of Nursing Care.

Tunneling nanotubes and tumor microtubes-Emerging data on their roles in intercellular communication and pathophysiology: Summary of an International FASEB Catalyst Conference October 2023.

In the past decade, there has been a steady rise in interest in studying novel cellular extensions and their potential roles in facilitating human diseases, including neurologic diseases, viral infectious diseases, cancer, and others. One of the exciting new aspects of this field is improved characterization and understanding of the functions and potential mechanisms of tunneling nanotubes (TNTs), which are actin-based filamentous protrusions that are structurally distinct from filopodia. TNTs form and connect cells at long distance and serve as direct conduits for intercellular communication in a wide range of cell types in vitro and in vivo. More researchers are entering this field and investigating the role of TNTs in mediating cancer cell invasion and drug resistance, cellular transfer of proteins, RNA or organelles, and intercellular spread of infectious agents, such as viruses, bacteria, and prions. Even further, the elucidation of highly functional membrane tubes called "tumor microtubes" (TMs) in incurable gliomas has further paved a new path for understanding how and why the tumor type is highly invasive at the cellular level and also resistant to standard therapies. Due to the wide-ranging and rapidly growing applicability of TNTs and TMs in pathophysiology across the spectrum of biology, it has become vital to bring researchers in the field together to discuss advances and the future of research in this important niche of protrusion biology.

Características clínicas e epidemiológicas das internações pediátricas por COVID-19 na Amazônia brasileira: um estudo observacional / Clinical and epidemiological characteristics of pediatric hospitalizations due to COVID-19 in the Brazilian Amazon: an observational study

OBJETIVO: Apontar os aspectos clínicos e epidemiológicos de crianças internadas por COVID-19 em um hospital público situado em um estado da Amazônia Brasileira. MÉTODO: Estudo observacional, descritivo, retrospectivo e documental com uma abordagem quantitativa dos casos de internação pediátrica por COVID-19. RESULTADOS: No Hospital da Criança e Adolescente, foram registrados um total de 5016 casos suspeitos de COVID-19 em crianças. Destes, 666 foram confirmados com a doença e resultaram em 140 internações. Analisamos 136 notificações de crianças internadas por COVID-19. A maioria dos pacientes era lactente (39%) e pré-escolar (36%), com prevalência do sexo masculino (67,6%) e raça/cor preta/parda (86%). Além disso, 83,1% delas residem em área urbana. Quanto ao desfecho, 96,67% evoluíram para a cura e 3,33% resultaram em óbito. CONCLUSÃO: No contexto amazônico, a análise das características clínicas e epidemiológicas deste grupo etário é essencial para orientar os cuidados clínicos, prever a gravidade da doença e determinar o prognóstico.

OBJECTIVE: To determine the clinical and epidemiologic aspects of children hospitalized for COVID-19 in a public hospital located in a state in the Brazilian Amazon. METHODS: Observational, descriptive, retrospective, and documentary study with a quantitative approach to pediatric hospitalization cases due to COVID-19. RESULTS: In the Hospital for Children and Adolescents, a total of 5016 suspected cases of COVID-19 in children were recorded. Of these, 666 were confirmed with the disease, resulting in 140 hospitalizations. We analyzed 136 reports of children hospitalized for COVID-19. Most patients were infants (39%) and preschool children (36%), with a prevalence of males (67.6%) and black/brown race/color (86%). In addition, 83.1% live in urban areas. Regarding the outcome, 96.67% were cured, and 3.33% resulted in death. CONCLUSION: In the Amazonian context, the analysis of this age group's clinical and epidemiologic characteristics is essential to guide clinical care, predict the severity of the disease, and determine the prognosis.

Effect of inoculum composition on the microbial community involved in the anaerobic digestion of sugarcane bagasse.

In anaerobic digestion (AD), the choice of inoculum type seems to be relevant for methane production for complex substrates, such as lignocellulosic material. Previous work demonstrated that the addition of fresh manure and ruminal fluid to anaerobic sludge improved methane productivity and kinetics of AD of crude sugarcane bagasse (CSB). Considering that the improvement of methane production could be a result of a more adapted microbial community, the present study performed the Next Generation Sequencing analysis to identify changes in the microbiome of anaerobic sludge inoculum, resulting from fresh manure and ruminal fluid addition. In comparison with AD performed only with anaerobic sludge inoculum (50:50, U), accumulated methane production was 15% higher with anaerobic sludge plus ruminal fluid inoculum (50:50, UR) and even higher (68%) with anaerobic sludge with fresh bovine manure inoculum (50:50, UFM), reaching the value of 143 NmLCH4.gVS-1. Clostridium species were highly abundant in all inocula, playing an important role during the hydrolysis and fermentation of CSB, and detoxifying potential inhibitors. Microbial composition also revealed the occurrence of Pseudomonas and Anaerobaculum at UFM inoculum that seem to have contributed to the higher methane production rate, mainly due to their hydrolytic and fermentative ability on lignocellulosic substrates. On the other hand, the presence of Alcaligenes might have had a negative effect on methane production due to their ability to perform methane oxidation.

Chlorella vulgaris extract and Imiquimod as new therapeutic targets for leishmaniasis: An immunological approach.

The therapeutic regimen for the treatment of American Tegumentary Leishmaniasis (ATL) is targeted at the death of the parasite; therefore, it is essential to develop a treatment that can act on the parasite, combined with the modulation of the inflammatory profile. Thus, the aim of this study was to make an in vitro evaluation of the therapeutic potential of Chlorella vulgaris extract (CV) and Imiquimod for ATL. Selectivity indices (SI) were determined by inhibitory concentration assays (IC50) in L. braziliensis cells and cytotoxic concentrations (CC50) were measured in human cells using the MTT method, based on the CV microalgae extract (IC50 concentrations of 15.63 to 500 µg/mL; CC50 concentrations of 62.5-1000 µg/mL) in comparison with the reference drugs and Imiquimod. The immune response was evaluated in healthy human cells by gene expression (RT-qPCR) and cytokine production (Flow Cytometry). The CV extract (SI = 6.89) indicated promising results by showing higher SI than meglumine antimoniate (SI = 3.44) (reference drug). In all analyses, CV presented a protective profile by stimulating the production of Th1 profile cytokines to a larger extent than the reference drugs. Imiquimod showed a high expression for Tbx21, GATA3, RORc and Foxp3 genes, with increased production only of the TNF cytokine. Therefore, the data highlight the natural extract and Imiquimod as strong therapeutic or adjuvant candidates against ATL, owing to modulation of immune response profiles, low toxicity in human cells and toxic action on the parasite.

Role of a typical swine liquid manure treatment plant in reducing elements of antibiotic resistance.

Biological treatment of swine liquid manure may be a favorable environment for the enrichment of bacteria carrying antibiotic resistance genes (ARGs), raising the alert about this public health problem. The present work sought to investigate the performance of a swine wastewater treatment plant (SWWTP), composed of a covered lagoon biodigester (CLB) followed by three facultative ponds, in the removal of usual pollutants, antibiotics, ARGs (blaTEM, ermB, qnrB, sul1, and tetA), and intI1. The SWWTP promoted a 70% of organic matter removal, mainly by the digester unit. The facultative ponds stood out in the solids' retention carried from the anaerobic stage and contributed to ammonia volatilization. The detected antibiotic in the raw wastewater was norfloxacin (< 0.79 to 60.55 µg L-1), and the SWWTP seems to equalize peaks of norfloxacin variation probably due to sludge adsorption. CLB reduced the absolute abundance of ARGs by up to 2.5 log, while the facultative stage does not seem to improve the quality of the final effluent in terms of resistance elements. Considering the relative abundances, the reduction rates of total and ARG-carrying bacteria appear to be similar. Finally, correlation tests also revealed that organic matter and solids control in liquid manure treatment systems could help reduce the spread of ARGs after the waste final disposal.

ASSESSMENT OF RISK FACTORS FOR SURGERY TREATMENT OF CROHN'S DISEASE: A HOSPITAL COHORT.

BACKGROUND: New therapies have revolutionized the treatment of Crohn's disease (CD), but in some countries, the surgery rate has not changed, the frequency of emergency surgery is underestimated, and surgical risk is poorly studied. AIMS: The aim of this study was to identify risk factors and clinical indications for primary surgery in CD patients at the tertiary hospital. METHODS: This was a retrospective cohort of a prospectively collected database of 107 patients with CD from 2015 to 2021. The main outcomes were the incidence of surgery treatment, types of procedures performed, surgical recurrence, surgery free time, and risk factors for surgery. RESULTS: Surgical intervention was performed in 54.2% of the patients, and most of the procedures were emergency surgeries (68.9%). The elective procedures (31.1%) were performed over 11 years after diagnosis. The main indications for surgery were ileal stricture (34.5%) and anorectal fistulas (20.7%). The most frequent procedure was enterectomy (24.1%). Recurrence surgery was most common in emergency procedures (OR 2.1; 95%CI 1.6-6.6). Montreal phenotype L1 stricture behavior (RR 1.3; 95%CI 1.0-1.8, p=0.04) and perianal disease (RR 1.43; 95%CI 1.2-1.7) increased the risk of emergency surgeries. The multiple linear regression showed age at diagnosis as a risk factor for surgery (p=0.004). The study of surgery free time showed no difference in the Kaplan-Meier curve for Montreal classification (p=0.73). CONCLUSIONS: The risk factors for operative intervention were strictures in ileal and jejunal diseases, age at diagnosis, perianal disease, and emergency indications.

Blocking activation of CD4-CD8- T cells modulates their cytotoxic potential and decreases the expression of inflammatory and chemotactic receptors.

CD4-CD8- (double negative - DN) T cells represent a small fraction of circulating T lymphocytes but are a major source of pro-inflammatory cytokines in patients with infectious diseases, including chronic Chagas cardiomyopathy (CCC), one of the deadliest cardiopathies known. Chagas disease is caused by an infection with the protozoan parasite Trypanosoma cruzi and can lead to either an asymptomatic form or a high-mortality cardiac disease. While circulating DN T cells represent a major inflammatory cytokine-expressing cell population in Chagas disease, their potential to be recruited to the heart and to perform cytotoxicity has not been determined. Our previous studies showed that blocking DN T cell activation decreases the expression of IFN-gamma, a cytokine involved in the severity of CCC. Here, studying a well-characterized cohort of Chagas patients with CCC or the asymptomatic form of Chagas disease (indeterminate form, IND), we evaluated the expression of cytotoxic molecules, cytokine and chemokine receptors in γδ+ and αß+ DN T cells by multiparameter flow cytometry, and investigated whether blocking the activation of DN T cells influences the expression of these molecules. We observed that DN T cells from CCC display a higher expression of granzyme A, perforin, inflammatory molecules, and inflammatory chemokine receptors than cells from IND. Messenger RNA coding for these molecules is also upregulated in the heart of CCC patients. Importantly, blocking the activation of DN T cells from CCC modulates their cytotoxic potential and the expression of inflammatory and of chemokine receptors, suggesting that targeting DN T cell activation may be a valid strategy to reduce recruitment to the heart, inflammation, cytotoxicity and, thereby diminish CCC progression and severity.

The Effects of Resistance Exercise on the Cardiorespiratory Tissue of Rats with Parkinson's Disease.

Parkinson's Disease (PD) affects the cardiorespiratory system, causing an increase in the left ventricular mass in the heart and respiratory muscle weakness in relation to healthy individuals. The objective of this study was to investigate the effects of progressive resistive physical exercise on the vertical ladder on the histomorphometry of cardiac tissue and respiratory muscles in rats with PD. Seventy male Wistar rats, aged 40 days old, were divided into Parkinson's (PD) and Sham (SH) groups; they were also subdivided into groups that performed progressive resistive physical exercise on the vertical ladder Before Surgery (ExBS), After Surgery (ExAS), and Before and After Surgery (ExBAS). The physical training was carried out before and/or after PD induction. Exercise was performed five times a week for 25 min/day for four or eight weeks. PD induction was conducted via electrolytic stimulation of the Substantia nigra of the animals' brains, adopting the following stereotaxic table coordinates: -4.9; lateral medium equal to 1.7, and dorsoventral equal to 8.1. For the morphometric analysis of the heart, the following variables were calculated: relative weight and diameter and thickness of the left ventricle. The diaphragm and the myocardial, intercostal, and abdominal muscles were stained with Hematoxylin and Eosin (HE). The histomorphometric analysis was performed using the ImageJ software to assess the cross-sectional area of muscles and the number of muscle fibers. Progressive resistance exercise promoted the hypertrophy of respiratory muscles and the left ventricle in animals with PD.

Hydrothermal pre-treatment followed by anaerobic digestion for the removal of tylosin and antibiotic resistance agents from poultry litter.

Hydrothermal pretreatment (HPT) followed by anaerobic digestion (AD) is an alternative for harvesting energy and removing organic contaminants from sewage sludge and animal manure. This study investigated the use, in an energetically sustainable way, of HPT and AD, alone or combined, to produce methane and remove tylosin and antimicrobial resistance genes (ARG) from poultry litter (PL). The results showed that HPT at 80 °C (HPT80), followed by single-stage AD (AD-1S), led to the production of 517.9 ± 4.7 NL CH4 kg VS-1, resulting in 0.11 kWh kg PL-1 of electrical energy and 0.75 MJ kg PL-1 of thermal energy, thus supplying 33.6% of the energy spent on burning firewood at a typical farm. In this best-case scenario, the use of HPT alone reduced tylosin concentration from PL by 23.6%, while the process involving HPT followed by AD-1S led to the removal of 91.6% of such antibiotic. The combined process (HPT80 + AD-1S), in addition to contributing to reduce the absolute and relative abundances of ARG ermB (2.13 logs), intI1 (0.39 logs), sul1 (0.63 logs), and tetA (0.74 logs), led to a significant removal in the relative abundance of tylosin-resistant bacteria present in the poultry litter.

Dispersion and persistence of antimicrobial resistance genes among Staphylococcus spp. and Mammaliicoccus spp. isolated along a swine manure treatment plant.

Staphylococcus spp. and Mammaliicoccus spp. colonize the skin and mucosa of humans and other animals and are responsible for several opportunistic infections. Staphylococci antibiotic resistance may be present in the environment due to the spread of treated and untreated manure from the livestock industry due to antibiotic use to disease control or growth promoter. In this work, we analyzed the species distribution and antimicrobial susceptibility of Staphylococcus and Mammaliicoccus species along different sites of a swine manure treatment plant from Southeastern Brazil. Bacterial colonies were obtained on mannitol salt agar, selected after catalase test and Gram staining, and finally identified by mass spectrometry and sequencing of the tuf gene. According to the results, S.cohnii and S. simulans were the most prevalent species. Antibiotic resistance test revealed that several strains were resistant to multiple drugs, with high levels of chloramphenicol resistance (98%), followed by erythromycin (79%), tetracycline (73%), gentamicin (46%), ciprofloxacin (42%), cefoxitin (18%), sulfamethoxazole + trimethoprim (12%), and linezolid (4%). In addition, gene detection by PCR showed that all strains carried at least 2 resistance genes and one of them carried all 11 genes investigated. Using the GTG5-PCR approach, a high genetic similarity was observed between some strains that were isolated from different points of the treatment plant. Although some were seemingly identical, differences in their resistance phenotype and genotype suggest horizontal gene transfer. The presence of resistant bacteria and resistance genes along the treatment system highlights the potential risk of contamination by people in direct contact with these animals and the soil since the effluent is used as a biofertilizer in the surrounding environment.

Assessment of risk factors for surgery treatment of crohn's disease: a hospital cohort / Avaliação dos fatores de risco para tratamento cirúrgico na doença de crohn: uma coorte hospitalar

ABSTRACT BACKGROUND New therapies have revolutionized the treatment of Crohn's disease (CD), but in some countries, the surgery rate has not changed, the frequency of emergency surgery is underestimated, and surgical risk is poorly studied. AIMS: The aim of this study was to identify risk factors and clinical indications for primary surgery in CD patients at the tertiary hospital. METHODS: This was a retrospective cohort of a prospectively collected database of 107 patients with CD from 2015 to 2021. The main outcomes were the incidence of surgery treatment, types of procedures performed, surgical recurrence, surgery free time, and risk factors for surgery. RESULTS: Surgical intervention was performed in 54.2% of the patients, and most of the procedures were emergency surgeries (68.9%). The elective procedures (31.1%) were performed over 11 years after diagnosis. The main indications for surgery were ileal stricture (34.5%) and anorectal fistulas (20.7%). The most frequent procedure was enterectomy (24.1%). Recurrence surgery was most common in emergency procedures (OR 2.1; 95%CI 1.6-6.6). Montreal phenotype L1 stricture behavior (RR 1.3; 95%CI 1.0-1.8, p=0.04) and perianal disease (RR 1.43; 95%CI 1.2-1.7) increased the risk of emergency surgeries. The multiple linear regression showed age at diagnosis as a risk factor for surgery (p=0.004). The study of surgery free time showed no difference in the Kaplan-Meier curve for Montreal classification (p=0.73). CONCLUSIONS: The risk factors for operative intervention were strictures in ileal and jejunal diseases, age at diagnosis, perianal disease, and emergency indications.

RESUMO RACIONAL Novas terapias revolucionaram o tratamento da Doença de Crohn, mas em alguns países a taxa de cirurgias não se modificou, a frequência de cirurgias de emergência é subestimada e o risco cirúrgico é pouco estudado. OBJETIVOS Analisar fatores de risco e as indicações para cirurgia primária em pacientes com doença de Crohn, em Hospital terciário. MÉTODOS: Análise de banco de dados coletado prospectivamente, de 107 pacientes com doença de Crohn de 2015 a 2021. Os principais desfechos foram a incidência de tratamento cirúrgico, tipos de procedimentos realizados, recidiva cirúrgica, tempo livre de cirurgia e fatores de risco. RESULTADOS: A intervenção cirúrgica foi realizada em 54.2% dos pacientes, sendo a maioria dos procedimentos cirúrgicos de urgência (68.9%). Os procedimentos eletivos (31.1%) foram realizados mais de 11 anos após o diagnóstico. As principais indicações cirúrgicas foram estenose ileal (34,5%) e fístula anorretal (20,7%), sendo o procedimento mais frequente a enterectomia (24,1%). As cirurgias para recidiva foram mais comuns em procedimentos de urgência (OR 2,1; IC95% 1,6-6,6). O fenótipo de comportamento estenosante Montreal L1 (RR = 1,3; IC 95%: 1,0-1,8, p=0,04) e a doença perianal (RR 1,43; IC95% 1,2-1,7) aumentaram o risco de cirurgias de emergência. A regressão linear múltipla mostrou a idade ao diagnóstico como fator de risco para cirurgia (p=0,004). O estudo do tempo livre de cirurgia não mostrou diferença na curva de Kaplan Meier para a classificação Montreal (p=0,73). CONCLUSÕES: Os principais fatores de risco para intervenções cirúrgicas foram estenoses em doenças ileais e jejunais, idade ao diagnóstico, doença perianal e indicações de urgência.

Benefits of progressive resistance training on motor performance and muscular hypertrophy in rats with Parkinson's disease / Beneficios del entrenamiento con ejercicios de resistencia progresiva sobre el rendimiento motor y la hipertrofia muscular en ratas con enfermedad de Parkinson / Benefícios do treinamento com exercícios resistidos progressivos no desempenho motor e na hipertrofia muscular de ratos com doença de Parkinson

ABSTRACT Parkinson's disease (PD) is a progressive neurodegenerative condition defined by the presence of primary debilitating motor symptoms. This study aims to investigate the benefits of high-intensity progressive resistance training on muscle tissue and motor performance before and after the induction of PD in rats. A total of 80 male Wistar rats (Rattus norvegicus, var. albinus) aged 40 days and weighing between 250 and 450g were used. A total of 40 animals were subjected to PD surgery to induce electrolytic injury and were randomly assigned to the following subgroups: animals trained before PD induction (PA-Exa); animals trained after PD induction (PA-Exd); animals trained before and after PD induction (PA-Exad); and sedentary animals with PD induction (PA-Sed). The other 40 animals (control) were subjected to surgical access but not to PD electrolytic injury (Sham) and distributed in the same subgroups described above. For the PD induction surgery, electrolytic stimulation was used at the following coordinates: anteroposterior (AP) −4.9, mid-lateral (ML) 1.7,and dorsoventral (DV) 8.1. High-intensity progressive resistance training was performed on a vertical ladder five days/week from 30 to 45 minutes for four weeks. For our functional evaluation, the parallel bars and the misstep tests were used at the beginning (after surgery) and at the end of the experiment. After euthanasia, the forelimb biceps and hindlimb flexor hallucis longus muscles were removed. Processing, coloration, and histomorphometry analysis of muscle tissue were performed for all groups. To analyze the data, GraphPad Prism 9.4 was used with one-way analysis of variance (ANOVA) and a p<0.05. Data on muscle fiber count and area in forelimb biceps showed no significant differences, with a 0.853 and 0.4122 p-value, respectively. Flexor hallucis longus muscle fiber count showed a significant difference (p=0.0356), and PA-Exa and PA-Exd averaged the highest means. Hindlimb flexor hallucis longus muscle fiber area also evinced a significant difference (p=0.0306), in which PA-Exd, PA-Exad, and Sham-Exad showed the largest areas. Analysis of hindlegs in the parallel bars test showed that PA-Exad evinced the best functional performance. In the misstep test, we observed an increase in the number of errors animals made for almost all the groups, evincing a significant difference in the number of errors before and after the test only for PA-Exa, PA-Exd, and PA-Sed. We concluded that the animals that underwent high-intensity progressive training showed better performance in their hindlegs than in their fore ones and that animals that exercised before and after surgery benefited more from training.

resumen está disponible en el texto completo

RESUMO A doença de Parkinson (DP) é uma doença neurodegenerativa progressiva definida pela presença de sintomas motores debilitantes primários. O objetivo deste estudo é investigar os benefícios do treinamento com exercícios físicos progressivos de alta intensidade no tecido muscular e no desempenho motor antes e depois da indução da DP em ratos. Para tanto, foram utilizados 80 ratos Wistar machos (Rattus norvegicus var. albinus) com 40 dias de vida e peso corporal entre 250 e 450g. Quarenta animais foram submetidos à cirurgia de indução da DP por lesão eletrolítica e distribuídos aleatoriamente nos seguintes subgrupos: animais treinados antes da indução da DP (PA-Exa), animais treinados depois da indução da DP (PA-Exd), animais treinados antes e depois da indução da DP (PA-Exad) e animais sedentários com indução da DP (PA-Sed). Os outros 40 animais (controle) foram submetidos ao acesso cirúrgico, mas não à lesão eletrolítica (sham) da DP, e distribuídos nos mesmos subgrupos descritos anteriormente. Para cirurgia de indução da DP, foi utilizada estimulação eletrolítica nas coordenadas: anteroposterior (AP) igual a −4,9, médio-lateral (ML) igual a 1,7 e dorsoventral (DV) igual a 8,1. O treinamento com exercícios físicos progressivos de alta intensidade foi realizado na escada vertical, cinco dias/semana, de 30 a 45 minutos, por quatro semanas. Para avaliação funcional, foi utilizado o teste das barras paralelas e do passo em falso no início, depois da cirurgia e no final do experimento. Após a eutanásia dos animais, foram retirados os músculos bíceps da pata dianteira e flexor longo do hálux da pata traseira. Foi realizado processamento, coloração e análise histomorfométrica do tecido muscular dos grupos de animais. Para análise dos dados, foi utilizado o programa GraphPad Prism 9.4, com a análise de variância (Anova) one-way e p<0,05. Os dados sobre contagem e área das fibras musculares no bíceps da pata dianteira do animal não demonstraram diferenças significativas com valor de p igual a 0,853 e 0,4122, respectivamente. Os resultados da contagem de fibras musculares no flexor longo do hálux demonstraram diferença significativa (p=0,0356), e os grupos que apresentaram maior média de fibras foram PA-Exa e PA-Exd. Sobre a área das fibras do músculo flexor longo do hálux da pata traseira, também foi evidenciada diferença significativa (p=0,0306), e os grupos que apresentaram maiores áreas foram PA-Exd, PA-Exad e o grupo de animais treinados antes e depois da falsa cirurgia (SHAM-Exad). A análise das patas traseiras no teste das barras paralelas demonstrou que os animais do grupo PA-Exad apresentaram melhora do desempenho funcional nesse teste. No teste do passo em falso, foi observado aumento do número de erros cometidos pelos animais em quase todos os grupos, evidenciando diferença significativa no número de erros antes e depois do teste apenas nos grupos PA-Exa, PA-Exd e PA-Sed. Conclui-se que os animais que realizaram o treinamento com exercícios físicos progressivos de alta intensidade apresentaram melhor desempenho nas patas traseiras em comparação com as dianteiras e que os animais que se exercitaram antes e depois da cirurgia foram mais beneficiados com o treinamento.

Escolha da contracepção hormonal por mulheres assistidas na atenção primária: fatores limitantes e medo / Elección del anticonceptivo hormonal por mujeres asistidas en la atención primaria: factores limitantes y miedo / Choice of hormonal contraception by women assisted in primary care: limiting factors and fear

RESUMO Objetivo: Conhecer como ocorre a escolha pela contracepção hormonal por mulheres assistidas na Atenção Primária à Saúde. Método: Estudo qualitativo, descritivo e exploratório realizado em uma Estratégia Saúde da Família na região central do Rio Grande do Sul entre os meses de janeiro a março de 2022. Participaram 20 mulheres entre 18-43 anos. A produção de dados ocorreu mediante entrevista composta por questões abertas, as enunciações foram transcritas e submetidas à análise temática. Resultados: As participantes revelaram a falta de opção fornecida pelo Sistema Único de Saúde na escolha da contracepção hormonal, bem como apresentam fatores limitantes como dúvidas, dificuldades e medo ao utilizar o anticoncepcional hormonal devido à falta de orientação profissional na Atenção Primária à Saúde. Conclusão: A escolha do método contraceptivo precisa levar em consideração a autonomia da mulher e os profissionais de saúde que atuam na Atenção Primária à Saúde devem garantir o direito de escolha, minimizar as dúvidas, medos e tabus que circundam o processo de anticoncepção hormonal. Ademais, as consultas de saúde da mulher devem oportunizar a educação em saúde, o diálogo e a troca de saberes

RESUMEN Objetivo: conocer cómo ocurre la elección del anticonceptivo hormonal por mujeres asistidas en la Atención Primaria de Salud. Método: estudio cualitativo, descriptivo y exploratorio realizado en una Estrategia Salud de la Familia en la región central de Rio Grande do Sul/Brasil entre los meses de enero a marzo de 2022. Participaron 20 mujeres entre 18-43 años. La producción de datos se realizó mediante entrevista compuesta por preguntas abiertas, los relatos fueron transcritos y sometidos al análisis temático. Resultados: las participantes revelaron la falta de opción ofrecida por el Sistema Único de Salud en la elección del anticonceptivo hormonal, así como presentaron factores limitantes como dudas, dificultades y miedo al utilizar el anticonceptivo hormonal debido a la falta de orientación profesional en la Atención Primaria de Salud. Conclusión: la elección del método anticonceptivo necesita tener en cuenta la autonomía de la mujer y los profesionales de salud, que actúan en la Atención Primaria de Salud, deben garantizar el derecho de elección, minimizar las dudas, los miedos y tabúes que rodean el proceso de anticonceptivo hormonal. Además, las consultas de salud de la mujer deben darle la oportunidad a la educación en salud, al diálogo e intercambio de saberes.

ABSTRACT Objective: To know how the choice for hormonal contraception occurs by women assisted in Primary Health Care. Method: Qualitative, descriptive and exploratory study conducted in a Family Health Strategy in the central region of Rio Grande do Sul between the months of January and March 2022. Twenty women aged 18-43 participated. The production of data occurred through interview composed of open questions, the enunciations were transcribed and submitted to thematic analysis. Results: The participants revealed the lack of option provided by the Unified Health System in the choice of hormonal contraception, as well as difficulties and fear when using hormonal contraceptives due to lack of professional guidance in Primary Health Care. Conclusion: The choice of contraceptive method must take into account the autonomy of women and health professionals who work in Primary Health Care must ensure the right to choose, minimize doubts, fears and taboos surrounding the hormonal contraception process. In addition, women's health consultations should provide opportunities for health education, dialogue and knowledge exchange.

Construct validity and reliability of the 2-Minute Step Test (2MST) in individuals with low back pain.

BACKGROUND: Functional tests are important clinical tools, since they are non-invasive methods, with simple applicability, and low cost. However, there are few tests adapted for individuals with chronic low back pain. Thus, our objective was to evaluate the test-retest and inter-rater reliability of the 2-Minute Step Test in individuals with chronic low back pain and to correlate the test score with measures of pain and physical activity. METHODS: We included patients aged between 18 and 45 years, of both sexes, and with low back pain. The interval between the test and retest was 7 days. We analyzed the data via intra-class correlation coefficient (ICC), confidence interval at 95%, standard error of measurement, and minimum detectable change for reliability. We used the Spearman's correlation coefficient to verify the correlation between 2-Minute Step Test and measures of pain and physical activity (Numerical Pain Scale, Roland-Morris Disability Questionnaire, Pain-Related Catastrophizing Thoughts Scale, Tampa Scale of Kinesiophobia, and Baecke Habitual Physical Activity Questionnaire). RESULTS: Sample is composed of 37 individuals, most of them female, with overweight and low back pain > 60 months. 2-Minute Step Test showed excellent test-retest (ICC = 0.903) and inter-rater (ICC = 0.925) reliability. Sport domain of the Baecke showed a significant correlation with the 2-Minute Step Test (rho = 0.444). CONCLUSION: 2-Minute Step Test is a reliable measure to measure the functional capacity of patients with chronic low back pain considering different times and examiners, as well as being positively correlated with sports practice.

[Demographic and socio-environmental factors associated with household food insecurity in different territories of the city of Salvador, Bahia State, Brazil]. / Fatores demográficos e socioambientais associados à insegurança alimentar domiciliar nos diferentes territórios da cidade de Salvador, Bahia, Brasil.

This study aimed to present the prevalence of household food insecurity in different territories of the city of Salvador, Bahia State, Brazil, and to analyze demographic and socio-environmental factors associated with it. The data used are from a larger survey named Quality of the Urban Environment of Salvador - QUALISalvador, carried out from 2018 to 2020 in in the city. Food insecurity was assessed using the Brazilian Food Insecurity Scale. A total of 15,171 households were analyzed. Multinomial logistic regression models were used to analyze the association of demographic and socio-environmental variables with mild food insecurity (MFI) and moderate or severe food insecurity (MSFI) for Salvador and by macrozones. Salvador presented 40.96% of food insecurity. In the macrozones, the prevalence differed: Atlantic Coast (25.8%), Consolidated Urban Area (33%), Suburb (45.7%), and Core (47.9%). All factors analyzed were associated with MFI and/or MSFI in the model for Salvador, namely: household head having schooling ≤ 4 years (MFI: OR = 2.00; 95%CI: 1.61-2.47/MSFI: OR = 4.94; 95%CI: 3.83-6.35), having per capita family income of up to 1/2 minimum wage (MFI: OR = 2.62; 95%CI: 2.37-2.93/MSFI: OR = 4.03; 95%CI: 3.53-4.60), perception of the quality of the urban environment as poor (MFI: OR = 1.57; 95%CI: 1.36-1.81/MSFI: OR = 2.03; 95%CI: 1.73-2.38), with a higher prevalence of food insecurity in scenarios of worse sociodemographic situation. In the Core Macrozone, all factors were also associated with food insecurity. Thus, the factors of social vulnerability are associated with food insecurity in the capital and macrozones, but they are presented in a specific way according to the characteristics of each territory.

O objetivo deste estudo foi apresentar a prevalência da insegurança alimentar domiciliar em diferentes territórios da cidade de Salvador, Bahia, Brasil, e analisar fatores demográficos e socioambientais a ela associados. Os dados utilizados são de uma pesquisa maior denominada Qualidade do Ambiente Urbano de Salvador - QUALISalvador, realizada entre 2018 e 2020 em Salvador. A insegurança alimentar foi avaliada por meio da Escala Brasileira de Insegurança Alimentar. Foram analisados 15.171 domicílios. Modelos de regressão logística multinominal foram utilizados para analisar a associação de variáveis demográficas e socioambientais com insegurança alimentar leve (IAL) e moderada ou grave (IAMG), para Salvador e macrozonas. Salvador apresentou 40,96% de insegurança alimentar. Nas macrozonas, as prevalências se diferenciaram: Orla Atlântica (25,8%), Área Urbana Consolidada (33%), Subúrbio (45,7%) e Miolo (47,9%). Todos os fatores analisados apresentaram associação com IAL e/ou IAMG no modelo para Salvador, entre eles estão o responsável pelo domicílio ter escolaridade ≤ 4 anos (IAL: OR = 2,00; IC95%: 1.61-2,47/IAMG: OR = 4,94; IC95%: 3,83-6,35), renda familiar per capita de até 1/2 salário mínimo (IAL: OR = 2,62; IC95%: 2,37-2,93/IAMG: OR = 4,03; IC95%: 3,53-4,60), percepção sobre a qualidade do ambiente urbano como ruim (IAL: OR = 1,57; IC95%: 1,36-1,81/IAMG: OR = 2,03; IC95%: 1,73-2,38), com maior prevalência de insegurança alimentar em cenários de pior situação sociodemográfica. Na macrozona Miolo todos os fatores também se mantiveram associados à insegurança alimentar. Assim, os fatores de vulnerabilidade social estão associados à insegurança alimentar na capital e macrozonas, mas apresentam-se de formas especificas segundo características de cada território.

El objetivo de este estudio fue estimar la prevalencia de la inseguridad alimentaria familiar en diferentes territorios de la ciudad de Salvador (Bahía, Brasil) y analizar sus factores demográficos y socioambientales asociados. Los datos provienen de la encuesta Calidad del Ambiente Urbano de Salvador - QUALISalvador, realizada entre 2018 y 2020 en Salvador. La inseguridad alimentaria se evaluó mediante la Escala Brasileña de Inseguridad Alimentaria. Se analizaron 15.171 domicilios. Se utilizaron los modelos de regresión logística multinomial para analizar la asociación de variables demográficas y socioambientales con la inseguridad alimentaria leve (IAL) y moderada o severa (IAMG) para Salvador, por macrozonas. Salvador presentó el 40,96% de inseguridad alimentaria. En las macrozonas, las prevalencias fueron diferentes: Orla Atlântica (25,8%), Área Urbana Consolidada (33%), Subúrbio (45,7%) y Miolo (47,9%). Todos los factores analizados se asociaron con IAL e/o IAMG en el modelo para Salvador, entre ellos destacan el responsable del hogar con nivel de estudios ≤ 4 años (IAL: OR = 2,00; IC95%: 1,61-2,47/IAMG: OR = 4,94; IC95%: 3,83-6,35), con renta familiar per cápita de hasta 1/2 salario mínimo (IAL: OR = 2,62; IC95%: 2,37-2,93/IAMG: OR = 4,03; IC95%: 3,53-4,60), percepción de mala calidad del medio urbano (IAL: OR = 1,57; IC95%: 1,36-1,81/IAMG: OR = 2,03; IC95%: 1,73-2,38) y mayor prevalencia de inseguridad alimentaria en escenarios con peor situación sociodemográfica. En la macrozona Miolo, todos los factores también estuvieron asociados con la inseguridad alimentaria. Por tanto, los factores de vulnerabilidad social se asocian a la inseguridad alimentaria en la capital y en las macrozonas, pero son específicos según las características de cada territorio.

Progenitor with cardiometabolic disorders increases food intake, systemic inflammation and gut microbiota alterations in the second-generation offspring.

This work presents the effects of the high-fat diet (H) consumed by the progenitor (G0) on cardiometabolic disorders and intestinal microbiota in the second-generation offspring (F2). The rats submitted to H (G0H) or control (C) (G0C) diets, during mating, gestation and lactation, generated F2 offspring (F2-G0H and F2-G0C, respectively), which received only the C diet. Both, G0H and F2-G0H, showed changes in the intestinal microbiota, increased MAP, plasma TAG levels, adiposity index and the inflammatory process in retroperitoneal fat and in the colon shown by increased TNF-α, MCP-1, MyD88 and CAV-1 gene expression. In addition, F2-G0H showed increased food intake, leptin resistance, total cholesterol and plasma levels of MCP-1 and reduced adiponectin. Regarding microbial communities, a greater diversity was observed in 5 unique families of bacteria that was correlated with cardiometabolic disorders. Overall, progenitors with cardiometabolic disorders induce an increase in food intake, systemic inflammation and microbiota alterations in the F2-G0H offspring.

[The color and gender of hunger: analysis of food insecurity from an intersectional gaze]. / A cor e o sexo da fome: análise da insegurança alimentar sob o olhar da interseccionalidade.

The aim of this study is to analyze home food (in)security via intersectionality. The data are from the cross-sectional study Quality of the Urban Environment of Salvador - QUALISalvador, conducted from 2018 to 2020 in Salvador, Bahia State, Brazil. A structured questionnaire and the Brazilian Food Insecurity Scale were used. A total of 14,713 households were analyzed. The outcome variable was the situation of food security: mild, moderate, or severe food insecurity. The exposure of interest variable was the intersection of the variables self-declared race/color and gender: white man, white woman, black man, black woman. Multinominal logistic regression models were used to estimate the association between exposure of interest and outcome, adjusted for socioeconomic variables and stratified according to education level and per capita family income. Households lead by black women had a higher chance of experiencing mild (OR = 1.39; 95%CI: 1.15-1.68; p = 0.001) and moderate or severe (OR = 1.94; 95%CI: 1.49-2.52; p < 0.001) food insecurity in relation to households lead by white men. They also had a higher chance of experiencing moderate or severe food insecurity in all levels of education and in the ranges of up to 1/2 minimum wage and > 1 minimum wage. When the person responsible for the household was a black man, the greatest chance for this condition was in the > 1 minimum wage. Food insecurity in households lead by black women, even in socioeconomically favorable conditions, is revealed as one of the consequences of the structural interaction of racism and sexism.

Este trabalho objetiva analisar a (in)segurança alimentar domiciliar sob o olhar da interseccionalidade. Para isso, foram analisados 14.713 domicílios, utilizando-se um questionário estruturado e a Escala Brasileira de Insegurança Alimentar, além dos dados do estudo transversal Qualidade do Ambiente Urbano de Salvador - QUALISalvador, realizado entre 2018 e 2020 em Salvador, Bahia, Brasil. A variável desfecho foi a situação de segurança alimentar (insegurança alimentar leve, moderada ou grave) e a variável exposição de interesse foi o cruzamento de raça/cor e sexo autodeclarado (homem branco, mulher branca, homem negro, mulher negra). Modelos de regressão logística multinominal foram usados para estimar a associação entre a exposição de interesse e o desfecho, ajustada a partir de questões socioeconômicas estratificadas segundo escolaridade e renda familiar per capita. Diante disso, concluiu-se que domicílios chefiados por mulheres negras apresentaram maior chance de insegurança alimentar leve (OR = 1,39; IC95%: 1,15-1,68; p = 0,001) e moderada ou grave (OR = 1,94; IC95%: 1,49-2,52; p < 0,001) em relação aos domicílios chefiados por homens brancos, além de maior chance de insegurança alimentar moderada ou grave em todos os níveis de escolaridade e nas faixas de até 1/2 salário mínimo e > 1 salário mínimo. Quando os responsáveis foram homens negros, a maior chance se apresentou na faixa > 1 salário mínimo. A insegurança alimentar nos domicílios chefiados por mulheres negras, mesmo em condições socioeconomicamente favoráveis, revela-se como uma das consequências da interação estrutural do racismo e do sexismo.

El objetivo de este estudio fue analizar la (in)seguridad alimentaria de los hogares desde la perspectiva de la interseccionalidad. Los datos son del estudio transversal Calidad del Medio Ambiente Urbano de Salvador - QUALISalvador, realizado entre el 2018 y el 2020 en Salvador, Bahía, Brasil. Se utilizó un cuestionario estructurado y la Escala Brasileña de Inseguridad Alimentaria. Se analizaron 14.713 hogares. La variable desenlace fue la situación de seguridad alimentaria, inseguridad alimentaria leve, moderada o severa. La variable de exposición de interés fue el cruce de las variables autoinformadas raza/color y sexo: hombre blanco, mujer blanca, hombre negro, mujer negra. Se utilizaron modelos de regresión logística multinomial para estimar la asociación entre la exposición de interés y el desenlace, ajustados por variables socioeconómicas y estratificadas, según la escolaridad y la renta familiar per cápita. Los hogares encabezados por mujeres negras presentaron una mayor probabilidad de inseguridad alimentaria leve (OR = 1,39; IC95%: 1,15-1,68; p = 0,001) y moderada o severa (OR = 1,94; IC95%: 1,49-2,52; p < 0,001) con relación a los hogares encabezados por hombres blancos. También presentaron una mayor probabilidad de inseguridad alimentaria moderada o severa en todos los niveles de escolaridad y en los rangos de hasta 1/2 salario mínimo y > 1 salario mínimo. Cuando el responsable era un hombre negro, la mayor probabilidad para esta condición se presentó en el rango > 1 salario mínimo. La inseguridad alimentaria en los hogares encabezados por mujeres negras, incluso en condiciones socioeconómicamente favorables, se revela como una de las consecuencias de la interacción estructural del racismo y del sexismo.