Acrobatic training prevents learning impairments and astrocyte remodeling in the hippocampus of rats undergoing chronic cerebral hypoperfusion: sex-specific benefits.

Background: Chronic cerebral hypoperfusion (CCH) leads to memory and learning impairments associated with degeneration and gliosis in the hippocampus. Treatment with physical exercise carries different therapeutic benefits for each sex. We investigated the effects of acrobatic training on astrocyte remodeling in the CA1 and CA3 subfields of the hippocampus and spatial memory impairment in male and female rats at different stages of the two-vessel occlusion (2VO) model. Methods: Wistar rats were randomly allocated into four groups of males and females: 2VO acrobatic, 2VO sedentary, sham acrobatic, and sham sedentary. The acrobatic training was performed for 4 weeks prior to the 2VO procedure. Brain samples were collected for morphological and biochemical analysis at 3 and 7 days after 2VO. The dorsal hippocampi were removed and prepared for Western blot quantification of Akt, p-Akt, COX IV, cleaved caspase-3, PARP, and GFAP. GFAP immunofluorescence was performed on slices of the hippocampus to count astrocytes and apply the Sholl's circle technique. The Morris water maze was run after 45 days of 2VO. Results: Acutely, the trained female rats showed increased PARP expression, and the 2VO-trained rats of both sexes presented increased GFAP levels in Western blot. Training, mainly in males, induced an increase in the number of astrocytes in the CA1 subfield. The 2VO rats presented branched astrocytes, while acrobatic training prevented branching. However, the 2VO-induced spatial memory impairment was partially prevented by the acrobatic training. Conclusion: Acrobatic training restricted the astrocytic remodeling caused by 2VO in the CA1 and CA3 subfields of the hippocampus. The improvement in spatial memory was associated with more organized glial scarring in the trained rats and better cell viability observed in females.

Determining the widths of the maxillary anterior teeth for esthetics: comparison of the Mondelli and Albers formulas, esthetic proportion, and golden ratio.

The purpose of this study was to compare various formulas for idealized proportions of the maxillary incisors to the actual dimensions of natural teeth. The Mondelli formula 1 (MF1), Mondelli formula 2 (MF2), Albers formula (AF), esthetic proportion (EP) for width and height of anterior teeth, and golden ratio (GR) were calculated for a total of 50 dental students (30 women and 20 men) who participated in the study. The following measurements were obtained directly in the participant's mouth with a digital caliper: the mesiodistal and incisogingival dimensions of the maxillary central incisors, lateral incisors, and canines; the intercanine distance; and the smile width. The participants were photographed, and the smile width was also measured on the photographs. The MF1 and MF2 were each calculated twice, using both direct measurements and photographic measurements. The projected central incisor widths calculated using the MF1, MF2, and AF were compared among themselves and against the actual measurements using analysis of variance and Fisher test for multiple comparisons (α = 0.05). The EP and GR were analyzed using descriptive statistics. There was a statistically significant difference between all of the widths projected by the formulas and the actual widths of the central incisors (P < 0.05). Whether calculated from a direct or a photographic measurement, the incisor widths projected by the MF1 and MF2 were statistically similar to each other (P > 0.05). The EP values were similar to those reported in the literature. Only 2% of the participants had an incisor width ratio (central incisor/lateral incisor) that matched the GR of 1.618, while 86% fell within the range of 1.2 to 1.4. Overall, the proportions calculated with the MF1, MF2, AF, EP, and GR did not exactly match the actual dimensions of natural teeth. The formulas and the proportions available in the literature can assist in esthetic planning, but the individual characteristics of each patient and expertise of the dentist should guide treatment for each case.

Evaluating the agronomic efficiency of alternative phosphorus sources applied in Brazilian tropical soils.

Understanding the efficacy of alternative phosphorus (P) sources in tropical soils is crucial for sustainable farming, addressing resource constraints, mitigating environmental impact, improving crop productivity, and optimizing soil-specific solutions. While the topic holds great importance, current literature falls short in providing thorough, region-specific studies on the effectiveness of alternative P sources in Brazilian tropical soils for maize cultivation. Our aim was to assess the agronomic efficiency of alternative P sources concerning maize crop (Zea mays L.) attributes, including height, shoot dry weight, stem diameter, and nutrient accumulation, across five Brazilian tropical soils. In greenhouse conditions, we carried out a randomized complete block design, investigating two factors (soil type and P sources), evaluating five tropical soils with varying clay contents and three alternative sources of P, as well as a commercial source and a control group. We evaluated maize crop attributes such as height, dry weight biomass, and nutrient accumulation, P availability and agronomic efficiency. Our results showed that, although triple superphosphate (TSP) exhibited greater values than alternative P sources (precipitated phosphorus 1, precipitated phosphorus 2 and reactive phosphate) for maize crop attributes (e.g., height, stem diameter, shoot dry weight and phosphorus, nitrogen, sulfur, calcium and magnesium accumulation). For instance, PP1 source increased nutrient accumulation for phosphorus (P), nitrogen (N), and sulfur (S) by 37.05% and 75.98% (P), 34.39% and 72.07% (N), and 41.94% and 72.69% (S) in comparison to PP2 and RP, respectively. Additionally, PP1 substantially increased P availability in soils with high clay contents 15 days after planting (DAP), showing increases of 61.90%, 99.04%, and 38.09% greater than PP2, RP, and TSP. For Ca and Mg accumulation, the highest values were found in the COxisol2 soil when PP2 was applied, Ca = 44.31% and 69.48%; and Mg = 46.23 and 75.79%, greater than PP1 and RP, respectively. Finally, the highest values for relative agronomic efficiency were observed in COxisol2 when PP1 was applied. The precipitated phosphate sources (PP1 and PP2) exhibited a similar behavior to that of the commercial source (TSP), suggesting their potential use to reduce reliance on TSP fertilization, especially in soils with low clay contents. This study emphasized strategies for soil P management, aimed at assisting farmers in enhancing maize crop productivity while simultaneously addressing the effectiveness of alternative P sources of reduced costs.

Acrobatic training prevents motor deficits and neuronal loss in male and female rats following chronic cerebral hypoperfusion.

BACKGROUND: Chronic cerebral hypoperfusion in vascular dementia leads to memory and motor deficits; Physical exercise improves these aspects and promotes neuroprotection. Sexual dimorphism may significantly influence both ischemic and exercise outcomes. AIMS: The aim of this study was to investigate the effects of 2VO (Two-Vessel occlusion) and the acrobatic training on motor function, functional performance, and tissue loss in male and female rats. METHODS: Male and female rats were randomly divided into 4 groups: sham acrobatic, sham sedentary, 2VO acrobatic and 2VO sedentary. After 45 days of 2VO surgery, the animals received 4 weeks of acrobatic training. At the end, open field, beam balance and horizontal ladder tests were performed. Brain samples were taken for histological and morphological evaluation. RESULTS: Spontaneous motor activity in the open field was not affected by 2VO, on the other hand, an impairment in forelimb placement was observed after 2VO and acrobatic training prevented errors and improved hindlimb placement. Neuronal loss was found in the motor cortex and striatum after 2VO, especially in females, which was prevented by acrobatic training. CONCLUSION: Mild motor damage was found in animals after 2VO when refined movement was evaluated, probably associated to neuronal death in the motor cortex and striatum. The acrobatic exercise showed a neuroprotective effect, promoting neuronal survival and attenuating the motor deficit.

Should the Preference-Based Index Set of Values Be Country or Disease Specific? An Analysis Using Data From Women With Symptoms of Overactive Bladder.

OBJECTIVES: Overactive bladder (OAB) and urinary incontinence (UI) are common conditions among women. We aimed to verify the difference between the preference-based index extracted from short-form six-dimension version one (SF-6Dv1) in women with OAB using different country-specific value sets, translate and cross-culturally adapt the King's Health Questionnaire Five Dimension (KHQ-5D) into Brazilian Portuguese, and examine the association between preference-based index obtained by the SF-6Dv1 and KHQ-5D. METHODS: This cross-sectional study included 387 women with OAB, divided into groups with and without UI. The participants answered the sociodemographic questionnaire, KHQ, KHQ-5D, and SF-6Dv1. A two-way mixed analysis of variance, with post hoc to multiple comparisons were applied and a Spearman's test was applied to verify the correlation between the preference-based index of SF-6Dv1 and KHQ-5D. RESULTS: The main analysis showed a statistically significant interaction between the presence of UI and the value set obtained from the different countries (P = .005, Cohen's d = 0.02). The post hoc analyses showed that there was a statistically significant main effect of the value sets obtained from different countries (P < .001, d = 0.63) and in the presence of UI (P = .012, d = 0.02). The correlations between the preference-based index obtained from different countries using the SF-6Dv1 and KHQ-5D were significant. CONCLUSIONS: Differences were observed between the preference-based index obtained in different countries and presence of UI, although positive and significant results were observed in the correlation between preference-based index from different countries. The correlation between general and specifics preference-based index was small; the SF-6Dv1 could be used in cost-utility studies for this population.

Characterization of uterine involution using B-mode ultrasonography, color Doppler and elastography (acoustic radiation force impulse) for assessing postpartum in Santa Inês ewes.

The aim of this study was to investigate uterine involution using ultrasonography techniques during postpartum. Postpartum ultrasonography evaluation (B-mode, color Doppler and Acoustic Radiation Force Impulse elastography) of the uterus was performed by transabdominal approach at immediate after birth and sequentially every 48 hours, during 30 days. The uterine echotexture did not present significant variations (P >0.05) being homogeneous in most evaluations; echogenicity of the uterus increased along the evaluation period (P =0.0452). Progressive and remarkable decrease of the total uterine diameter (UD) were observed (P <0.0001), especially during the first days postpartum. The thickness of uterine wall gradually decreased, as well the endometrial, myometrium and lumen diameters (P <0.0001). Uterine blood flow was assessed by Doppler and decreased during postpartum period, being significantly lower (P=0.0225) on the 30th day of postpartum. Uterine parenchyma presented as homogeneous dark areas (not deformable) on qualitative ultrasound elastography and the means shear velocity values of the uterine wall on quantitative elastography did not differ. This is the first study that evaluate the stiffness of uterine wall in healthy ewes, providing baseline data about quantitative and qualitative stiffness of the normal uterus, and it may be a useful tool for early diagnosis of uterine alterations during the postpartum period, using the reference parameter established for the assessment of uterine integrity during postpartum period.

Bumetanide Attenuates Cognitive Deficits and Brain Damage in Rats Subjected to Hypoxia-Ischemia at Two Time Points of the Early Postnatal Period.

Neonatal hypoxia-ischemia (HI) is one of the main causes of tissue damage, cell death, and imbalance between neuronal excitation and inhibition and synaptic loss in newborns. GABA, the major inhibitory neurotransmitter of the central nervous system (CNS) in adults, is excitatory at the onset of neurodevelopment and its action depends on the chloride (Cl-) cotransporters NKCC1 (imports Cl-) and KCC2 (exports Cl-) expression. Under basal conditions, the NKCC1/KCC2 ratio decreases over neurodevelopment. Thus, changes in this ratio caused by HI may be related to neurological disorders. The present study evaluated the effects of bumetanide (NKCC cotransporters inhibitor) on HI impairments in two neurodevelopmental periods. Male Wistar rat pups, 3 (PND3) and 11 (PND11) days old, were submitted to the Rice-Vannucci model. Animals were divided into 3 groups: SHAM, HI-SAL, and HI-BUM, considering each age. Bumetanide was administered intraperitoneally at 1, 24, 48, and 72 h after HI. NKCC1, KCC2, PSD-95, and synaptophysin proteins were analyzed after the last injection by western blot. Negative geotaxis, righting reflex, open field, object recognition test, and Morris water maze task were performed to assess neurological reflexes, locomotion, and memory function. Tissue atrophy and cell death were evaluated by histology. Bumetanide prevented neurodevelopmental delay, hyperactivity, and declarative and spatial memory deficits. Furthermore, bumetanide reversed HI-induced brain tissue damage, reduced neuronal death and controlled GABAergic tone, maintained the NKCC1/KCC2 ratio, and synaptogenesis close to normality. Thereby, bumetanide appears to play an important therapeutic role in the CNS, protecting the animals against HI damage and improving functional performance.

Quality, opportunity, and treatment of data of tuberculosis and human immunodeficiency virus co-infection / Calidad, oportunidad y manejo de los datos de coinfección tuberculosis y virus de la inmunodeficiencia humana / Qualidade, oportunidade e tratamento de dados de tuberculose e coinfecção com vírus da imunodeficiência humana

Background and Objectives: The identification, evaluation, and use of methodological resources for data quality analysis is important to support planning actions of public policies for the control of tuberculosis (TB) and the co-infection TB and human immunodeficiency virus (HIV). The objective was to analyze the quality and timeliness of notification of TB and TB-HIV co-infection cases from the Notifiable Diseases Information System (SINAN - Sistema de Informação de Agravos de Notificação) in Espírito Santo State, from 2016 to 2018. Methods: This is a cross-sectional study of the quality of SINAN data using the Centers for Disease Control and Prevention (CDC) guidelines to analyze the quality and timeliness of SINAN-TB notification, with emphasis on the description of TB-HIV co-infection in Espírito Santo State, from 2016 to 2018. It considered five methodological steps that included quality analysis, standardization of records, duplicity analysis, the completeness of data through linkage with the SINAN-HIV database and anonymization of data. It obtained ethical approval under the number 4022892 on 12/05/2020. Results: The study showed that 89% of mandatory variables and 91% of essential variables showed satisfactory completeness. In TB-HIV co-infection 73% of the variables were completed, but essential variables related to TB treatment follow-up showed unsatisfactory completeness. The timeliness of reporting was considered regular. Conclusion: Improvements in work processes and the development of a specific methodological process for data treatment are necessary to qualify the information available in SINAN-TB.(AU)

Justificativa e Objetivos: A identificação, avaliação e emprego de recursos metodológicos para análise da qualidade dos dados é importante para fundamentar ações de planejamento das políticas públicas no controle da tuberculose (TB) e da coinfecção TB e o vírus da imunodeficiência humana (HIV). O objetivo é analisar a qualidade e a oportunidade de notificação dos casos de TB e coinfecção TB-HIV do Sistema de Informação de Agravos de Notificação (SINAN) no Espírito Santo, de 2016 a 2018. Métodos: Trata-se de um estudo transversal da qualidade dos dados do SINAN com uso do Guia do Centers for Disease Control and Prevention (CDC) de análise da qualidade e oportunidade de notificação do SINAN-TB, com ênfase na descrição da coinfecção TB-HIV no Espírito Santo, de 2016 a 2018. Considerou-se cinco etapas metodológicas que incluíram análise da qualidade, padronização dos registros, análise de duplicidade, a completitude dos dados por meio de linkage com o banco de dados do SINAN-HIV e anonimização dos dados. Obteve aprovação ética sob parecer de nº 4022892 em 12/05/2020. Resultados: O estudo mostrou que 89% das variáveis obrigatórias e 91% das variáveis essenciais apresentaram completitude satisfatória. Na coinfecção TB-HIV 73% das variáveis foram preenchidas, porém variáveis essenciais relacionadas ao acompanhamento do tratamento para TB apresentaram completitude insatisfatória. A oportunidade de notificação foi considerada regular. Conclusão: Melhorias nos processos de trabalho e elaboração de processo metodológico específico para o tratamento dos dados são necessárias para qualificar as informações disponíveis no SINAN-TB.(AU)

Justificación y Objetivos: La identificación, evaluación y utilización de recursos metodológicos de análisis de la calidad de los datos es importante para apoyar la planificación de políticas públicas de control de la tuberculosis (TB) y la coinfección con el virus de la inmunodeficiencia humana (VIH). El objetivo es analizar la calidad y oportunidad de la notificación de casos de TB y coinfección TB-VIH del Sistema de Informação de Agravos de Notificação (SINAN), en el Estado del Espírito Santo, desde el año 2016 hasta 2018. Métodos: Este es un estudio transversal utilizando el análisis de la Guía de los Centros para el Control y Prevención de Enfermedades (CDC) de la calidad y oportunidad de la notificación en SINAN-TB, con énfasis en la descripción de la coinfección TB-VIH, en el Estado del Espírito Santo, desde el año 2016 hasta 2018. Fueran considerados cinco pasos metodológicos que incluyeron análisis de calidad, estandarización de registros, análisis de duplicidad, vinculación con la base de datos SINAN-VIH y anonimización de datos. Obtuvo aprobación ética bajo dictamen nº 4022892 el 12/05/2020. Resultados: El 89% de las variables obligatorias y el 91% de las variables esenciales se completaron satisfactoriamente. En la coinfección TB-VIH el 73% de las variables fueron completadas, mientras que las variables esenciales relacionadas con el acompañamiento del tratamiento para la TB presentaron una completitud insatisfactoria. La oportunidad de notificación fue considerada regular. Conclusión: Las mejoras en los procesos de trabajo y la elaboración de un proceso metodológico específico para el tratamiento de los datos son necesarias para cualificar la información disponible en el SINAN-TB.(AU)

The Infection Profile and Survival of Children and Adolescents With COVID-19 Undergoing Cancer Treatment: A Cohort Study.

OBJECTIVE: The objective of this study was to evaluate the clinical evolution of coronavirus disease 2019 (COVID-19) in children and adolescents with cancer. METHODS: Cohort involving patients undergoing cancer treatment, 19 years old and under, with the diagnosis of COVID-19 by real-time polymerase chain reaction, in a reference hospital, between March 2020 and November 2021. Data were collected from medical records and interviews with patients and/or guardians. The primary outcomes studied were severe/critical COVID-19 presentation, deaths from any cause and overall survival. The Cox proportional hazards multivariate regression analysis was performed to determine the risk of death. RESULTS: Sixty-two participants were included, most (67.7%) were male, with a median age of 6.8 years. Severe/critical forms of COVID-19, observed in 24.2%, seemed to indicate that the pediatric population undergoing cancer treatment has a higher morbidity rate than the general pediatric population (8-9.2%). During follow-up (4.5-18 months), 20 patients (32.3%) completed their cancer treatment and 18 died (29%)-6 during hospitalization and 12 after discharge. In total 61.1% of deaths occurred within 63 days of a detectable real-time polymerase chain reaction. Patients with a higher risk of death presented with severe/critical COVID-19 [adjusted hazard risk (aHR): 8.51; 95% confidence interval (CI): 2.91-24.80; P < 0.00] solid tumors (aHR: 3.99; 95% CI: 1.43-11.12; P = 0.008) and diarrhea as a symptom of COVID-19 (aHR: 3.9; 95% CI: 1.23-12.73; P = 0.021). CONCLUSIONS: These findings support the impact that severe acute respiratory syndrome-associated coronavirus 2 infection has on the population of children and adolescents with cancer, not only regarding immediate severity but also in their survival rate. Further studies evaluating long-term outcomes of COVID-19 in children and adolescents with cancer should be encouraged.

Pelvic floor dysfunctions in women with fibromyalgia: A cross-sectional study.

BACKGROUND: Fibromyalgia (FM) is a rheumatic syndrome that causes musculoskeletal disorders and is associated with several problems that affect quality of life. As the musculoskeletal system is affected, it can have an impact on the pelvic floor muscles, leading to pelvic floor dysfunction (PFD). OBJECTIVE: Investigate the occurrence of PFD, such as urinary incontinence (UI) and anal incontinence (AI), sexual problems, and pelvic organ prolapse (POP), in women with FM compared to a control group composed of women without FM; and investigate the association between FM and PFD. STUDY DESIGN: This was an online cross-sectional survey. Demographic and anthropometric data, the description of PFD (UI, nocturia, AI, genital-pelvic pain/penetration disorder, and POP), and previous obstetric history were collected through a web-based questionnaire. The groups were compared using the independent t-test for quantitative variables and the chi-square test for categorical variables. The association between FM and PFD was tested using logistic regression analysis. RESULTS: A total of 175 women answered the questionnaire (97 with FM and 78 healthy controls). The women with FM reported significantly more UI, mixed urinary incontinence, AI, POP, and vaginismus than the healthy controls (p ≤ 0.05). FM was associated with mixed urinary incontinence (OR: 2.6; 95 % CI: 1.1-6.4; p = 0.04), anal incontinence (OR: 2.9; 95 % CI: 1.3-6.1; p = 0.01), and flatus incontinence (OR: 2.6; 95 % CI: 1.2-5.4; p = 0.01). CONCLUSION: The prevalence of PFD was significantly higher in women with FM compared to healthy women. Indeed, the women with FM were 2.6-fold to 2.9-fold more likely to report mixed urinary incontinence, anal and flatus incontinence than those in the control group. The present findings show possible impairment of the pelvic floor musculature in women with FM.

Pelvic floor dysfunctions in women with systemic lupus erythematosus: A cross-sectional study.

INTRODUCTION AND HYPOTHESIS: As a result of the impairment of the musculoskeletal system, the pelvic floor muscles are likely compromised in women with systemic lupus erythematosus (SLE). We hypothesized that women with SLE would report more symptoms of pelvic floor dysfunction (PFD) and there will be an association between SLE and PFD. METHODS: An online cross-sectional survey was conducted. Data were collected on demographic and anthropometric characteristics, PFD (urinary incontinence, nocturia, anal incontinence, genital-pelvic pain/penetration disorder and pelvic organ prolapse) and obstetric history using a web-based questionnaire. The groups were compared using the Mann-Whitney test for quantitative variables and the chi-squared test for categorical variables. The association between SLE and PFD was tested using logistic regression analysis. RESULTS: A total of 196 women answered the questionnaire (102 with SLE and 94 healthy controls). Women with SLE reported significantly more urinary incontinence, nocturia, anal incontinence, pelvic organ prolapse and genital-pelvic pain/penetration disorder than the healthy controls (p ≤ 0.05). Women with SLE were 2.8- to 3.0-fold more likely to report genital-pelvic pain/penetration disorder than healthy women. CONCLUSIONS: The prevalence of PFD was significantly higher in women with SLE compared to healthy women. Thus, PFD seems to be an important problem in women with this disease. An in-depth investigation of these disorders could contribute to the understanding of how SLE impacts pelvic floor function.

Oral complications of head and neck radiotherapy: the importance of the dental surgeon / Complicações orais da radioterapia de cabeça e pescoço: a importância do cirurgião-dentista

ABSTRACT Objective: radiotherapy can lead to different adverse effects in the oral epithelial cells. This article aimed to address the main oral manifestations associated with radiotherapy of head and neck neoplasms, highlighting the importance of the dental practitioners' participation within the skilled multidisciplinary personnel to treatment. Methods: Research was conducted in the PubMed, Lilacs, SciELO, and Google Scholar databases using the keywords "head and neck radiotherapy", "oral manifestations'', and "head and neck neoplasm". Eighteen out of 533 articles published between 2015 and 2022 were selected after duplicates removal and eligibility criteria application. Results: xerostomia, hyposalivation, trismus, dysgeusia, dysphagia, dentin hypersensitivity, fungal and viral infections, radiation caries, osteoradionecrosis, mucositis, periodontal alterations, and tooth development abnormalities were the most frequently reported oral effects of radiotherapy. Conclusions: The participation of dentists in the multidisciplinary team that treats patients with head and neck cancers is fundamental since several oral complications of radiotherapy are observed. Dentists can prevent, reduce and treat some detrimental effects whether the patient is followed-up since the beginning of radiotherapy.

RESUMO Objetivo: A radioterapia pode levar a diferentes efeitos adversos nas células epiteliais orais. Este artigo teve como objetivo abordar as principais manifestações bucais associadas à radioterapia de neoplasias de cabeça e pescoço, destacando a importância da participação do cirurgião-dentista na equipe multidisciplinar apta ao tratamento. Métodos: foi realizada uma busca nas bases de dados PubMed, Lilacs, SciELO e Google Acadêmico utilizando as palavras-chave "radioterapia cabeça e pescoço", "manifestações orais" e "neoplasma de cabeça e pescoço". Dezoito dos 533 artigos publicados entre 2015 e 2022 foram selecionados após a remoção das duplicatas e aplicação dos critérios de elegibilidade. Resultado: xerostomia, hipossalivação, trismo, disgeusia, disfagia, hipersensibilidade dentinária, infecções fúngicas e virais, cárie de radiação, osteorradionecrose, mucosite, alterações periodontais, e anormalidades do desenvolvimento dentário foram os efeitos orais da radioterapia mais relatados. Conclusão: A participação dos dentistas na equipe multidisciplinar que atende pacientes com câncer de cabeça e pescoço é fundamental, pois são observadas diversas complicações bucais da radioterapia. Os dentistas podem prevenir, reduzir e tratar alguns efeitos deletérios se o paciente for acompanhado desde o início da radioterapia.

The effects of TiO2 nanotubes on bond strength and radiopacity of a self-adhesive resin cement in self-curing mode / Os efeitos de nanotubos de TiO2 na resistência de união e radiopacidade de um cimento resinoso auto-adesivo no modo auto-polimerizável

Objective: The aim of this in vitro study w as t o analyze the influence of the titanium dioxide nanotubes i n a self-cure mode polymerization of a dual resin luting agent through push out bond strength and radiopacity tests. Material and Methods: After mixed with a commercial du al self-adhesive resin cement, three concentrations o f tit anium dioxide nanotubes (0.3, 0.6, and 0.9% by weight) we re analyzed in self-curing mode. T he bond strength to bovine root dentin and fi berglass posts was assessed with the push out bond str ength t est and was evaluated in three thirds (cervical, middle and apical) (n=10), followed by failure mode analysis (SEM), and the ISO standard 9917-2 was followed for radiopacity test (n=10). Data were statistically analyzed by one-way ANOVA test, followed by Tukey's test (α=0.05). Results: Reinforced self-adhesive resin cement with 0.6% titanium dioxide nanotubes showed significant difference compared to the control gr oup for push out test (p=0.00158). The modified groups did not s how significant difference among thirds (p=0.782). Radiopacity sh owed higher value for group w ith 0.9% titanium dioxide nanotubes in comparison w ith control group (p<0.001). Conclusion: The addition of titanium dioxide nanotubes to a self-adhesive resin cement increased the bond strength to dentin and radiopacity values in the self-cure polymerization mode (AU)

Objetivo: O objetivo deste estudo in vitro foi analisar a influência de nanotubos de dióxido de titânio na polimerização química de um agente cimentante resinoso dual através de testes de resistência à união e radiopacidade. Material e Métodos: Após misturado com um cimento resinoso auto-adesivo comercial, três concentrações de nanotubos de dióxido de titânio (0,3, 0,6 e 0,9% em peso) foram analisadas. A resistência da união para a dentina da raiz bovina e os pinos de fibra de vidro foi avaliada pelo teste de push-out e avaliada em três terços (cervical, médio e apical) (n = 10), seguido pelo análise de modo de falha (MEV) e a norma ISO 9917-2 foi seguido para teste de radiopacidade (n = 10). Os dados foram analisados estatisticamente pelo teste ANOVA um fator seguido do teste de Tukey (α = 0,05). Resultados: O cimento resinoso auto-adesivo reforçado com nanotubos de dióxido de titânio a 0,6% mostrou diferença significativa em comparação com o grupo controle para teste de push-out (p=0,00158). Os grupos modificados não mostraram diferença significativa entre os terços (p=0,782). A radiopacidade mostrou maior valor para o grupo com nanotubos de dióxido de titânio 0,9% em comparação com o grupo controle (p<0,001). Conclusão: A adição de nanotubos de dióxido de titânio a um cimento resinoso auto-adesivo aumentou a os valores de resistência de união à dentina e radiopacidade no modo de polimerização química do agente cimentante (AU)

Long-term care facilities for older people and the COVID-19 pandemic: epidemiological data and preventive measures / Instituições de longa permanência para idosos e a pandemia de COVID-19: dados epidemiológicos e medidas preventiva

Objectives: The COVID-19 pandemic has challenged society, especially residents of long-term care facilities (LTCF). This study investigated rates of infection, hospitalization, and death due to COVID-19 among LTCF residents and staff in Minas Gerais, Brazil and identified strategies to control the spread of the disease.Methods: This cross-sectional study collected data from 164 LTCF (6017 older adults). The owners or managers were invited to answer an electronic questionnaire. The questionnaire included 55 items, divided into 3 sections.Results: Of the participating LTCF, 48.7%, 39.6%, and 32.3% reported COVID-19 infections, hospitalizations, and deaths, respectively, among residents, while 68.9%, 7.3%, and 1.2% reported COVID-19 infections, hospitalizations, and deaths, respectively, among staff. Preventive measures were identified and classified as organizational, infrastructural, hygiene items/personal protective equipment, and staff training.Conclusion: The strategies used in the daily routines of LTCF during the pandemic were classified. The challenges experienced in Brazilian facilities were similar to those observed worldwide. The results highlight the importance of continuity and the need to improve protective measures for LTCF residents, especially in low- and middle-income countries

Objetivos: A pandemia da COVID-19 tem sido desafiadora para a sociedade, principalmente para aqueles que residem em Instituições de Longa Permanência (ILPI). Este estudo teve como objetivo descrever as taxas de infecção, hospitalização e óbito por COVID-19 entre idosos e funcionários de ILPI de Minas Gerais/Brasil e identificar estratégias de prevenção e controle da disseminação da doença.Metodologia: Este estudo transversal foi realizado com 164 ILPI (6.017 idosos). Os gestores ou proprietários foram convidados a responder ao questionário eletrônico. O questionário incluiu 55 itens, divididos em três seções.Resultados: Entre as ILPI estudadas, 48,7% confirmaram a infecção por COVID-19 em idosos, resultando em 39,6% de internação e 32,3% de óbito entre os infectados. Além disso, 68,9% das ILPI confirmaram infecção por COVID-19 na equipe, com 7,3% de internação e 1,2% de óbito. As medidas preventivas foram identificadas e classificadas como organizacionais, infraestrutura, itens de higiene e equipamentos de proteção individual e treinamento de pessoal contra a COVID-19.Conclusão: Essas medidas revelaram estratégias e barreiras vivenciadas no cotidiano das ILPI durante a pandemia. As ILPI no Brasil passaram por desafios semelhantes aos observados mundialmente. Os resultados destacaram a importância da continuidade e melhoria das medidas de proteção para idosos em ILPI, especialmente em países de baixa e média renda

Transtorno depressivo em mulheres no período pós-parto: análise segundo a raça/cor autorreferida / Trastorno depresivo en mujeres en el período posparto: análisis según raza/color autodeclarado / Depressive disorder among postpartum women: an analysis according to self-reported race/color

Resumo Objetivo Identificar a raça/cor autorreferida por mulheres com 60 dias de pós-parto; identificar a prevalência do indicativo de transtorno depressivo nessas mulheres e verificar a associação entre o indicativo de transtorno depressivo e o quesito raça/cor autorreferida. Métodos Estudo transversal desenvolvido em um município do interior paulista. Foram utilizados, para a coleta de dados, um instrumento com dados sociodemográficos e a Escala de Depressão Pós-Natal de Edimburgo. Os dados foram analisados utilizando-se o Statistical Package for Social Sciences, SPSS, versão 17.0. Resultados Participaram deste estudo 186 mulheres, 60,8% referiram ser da cor parda, 24,2% apresentaram indicativo de transtorno depressivo e, entre estas, 81,7% eram da raça negra. O indicativo de transtorno depressivo associou-se às variáveis: número de filhos (p=0,006), gestação planejada (p=0,04) e tipo de parto (p< 0,001). Conclusão Os resultados deste estudo contribuem para maior visibilidade da temática da saúde mental das mulheres, especificamente das mulheres negras, pois, mesmo que não tenha sido identificada associação significativa dentre aquelas que apresentaram indicativo de transtorno depressivo, a maioria era da raça negra.

Resumen Objetivo Identificar la raza/color autodeclarado por mujeres con 60 días de posparto, identificar la prevalencia de indicios de trastorno depresivo en esas mujeres y verificar la relación entre los indicios de trastorno depresivo y el ítem raza/color autodeclarado. Métodos Estudio transversal realizado en un municipio del interior paulista. Para la recopilación de datos, se utilizó un instrumento con datos sociodemográficos y la Escala de Depresión Posnatal de Edimburgo. Para analizar los datos se utilizó el Statistical Package for Social Sciences, SPSS, versión 17.0. Resultados Participaron en el estudio 186 mujeres, el 60,8 % declararon ser de color pardo, el 24,2 % presentó indicios de trastorno depresivo y, entre ellas, el 81,7 % era de raza negra. Los indicios de trastorno depresivo se relacionaron a las variables: número de hijos (p=0,006), embarazo planeado (p=0,04) y tipo de parto (p< 0,001). Conclusión Los resultados de este estudio contribuyen para una mayor visibilidad del tema de salud mental de las mujeres, específicamente de mujeres negras, ya que, aunque no se haya identificado una relación significativa entre las que presentaron indicios de trastorno depresivo, la mayoría era de raza negra.

Abstract Objective To identify the race/color self-reported by women 60 days postpartum; to identify the prevalence of signs of depressive disorder among these women and to verify the association between signs of depressive disorder and the self-reported race/color. Methods Cross-sectional study carried out in a noncapital city in the state of São Paulo. An instrument with sociodemographic data and the Edinburgh Postnatal Depression Scale were used for data collection. Data was analyzed using the Statistical Package for Social Sciences, SPSS, version 17.0. Results A total of 186 women participated in this study, 60.8% reported being brown, 24.2% had signs of depressive disorder and, among these, 81.7% were black. Signs of depressive disorder were associated with the variables: number of children (p=0.006), planned pregnancy (p=0.04) and type of delivery (p< 0.001). Conclusion The results of this study contribute to greater visibility of the issue of women's mental health, specifically of black women, because even though no significant association was identified among those who showed signs of depressive disorder, most were black.

Comparison of the Role of Different Levels of Religiousness and Spirituality in Controversial Ethical Issues and Clinical Practice among Brazilian Resident Physicians: Results from the Multicenter SBRAMER Study.

This study compares clinical practice and objections to controversial ethical issues among 836 Brazilian resident physicians according to levels of religiousness/spirituality. Residents with low religiousness/spirituality (s/r) believed less in the influence of spirituality on clinical practice, were less comfortable addressing this issue, tended to listen less carefully and try to change the subject more than other groups. Residents with high spirituality and low religiousness (S/r) inquired more about religious/spiritual issues, while those with high religiousness/spirituality (S/R) were more supportive and reported fewer barriers to addressing these issues. Concerning ethical issues (e.g., physician-assisted suicide, withdrawal of life support, abortion), S/R had more objections than others.

Therapeutic hypothermia for the treatment of neonatal hypoxia-ischemia: sex-dependent modulation of reactive astrogliosis.

Therapeutic hypothermia (TH) is the standard treatment for neonatal hypoxia-ischemia (HI) with a time window limited up to 6 h post injury. However, influence of sexual dimorphism in the therapeutic window for TH has not yet been elucidated in animal models of HI. Therefore, the aim of this study was to investigate the most effective time window to start TH in male and female rats submitted to neonatal HI. Wistar rats (P7) were divided into the following groups: NAÏVE and SHAM (control groups), HI (submitted to HI) and TH (submitted to HI and TH; 32ºC for 5 h). TH was started at 2 h (TH-2 h group), 4 h (TH-4 h group), or 6 h (TH-6 h group) after HI. At P14, animals were subjected to behavioural tests, volume of lesion and reactive astrogliosis assessments. Male and female rats from the TH-2 h group showed reduction in the latency of behavioral tests, and decrease in volume of lesion and intensity of GFAP immunofluorescence. TH-2 h females also showed reduction of degenerative cells and morphological changes in astrocytes. Interestingly, females from the TH-6 h group showed an increase in volume of lesion and in number of degenerative hippocampal cells, associated with worse behavioral performance. Together, these results indicate that TH neuroprotection is time- and sex-dependent. Moreover, TH started later (6 h) can worsen volume of brain lesion in females. These data indicate the need to develop specific therapeutic protocols for each sex and reinforce the importance of early onset of the hypothermic treatment.

Stealthing among university students: associated factors.

OBJECTIVE: To identify the practice of stealthing among university students and the associations between the profile of these young people and this practice. METHOD: Cross-sectional study carried out at a university campus in a city in the countryside of Sao Paulo. Data collection was carried out online by RedCap between May and September 2018, through questionnaires with identification data, sociodemographic characteristics and sexual and reproductive health. Data were analyzed by IBM-SPSS, version 17.0. RESULTS: A total of 380 students participated in the study, aged between 18 and 24 years old, most of them unpaid students, coming from private education, not having a religion and being single. Most of them were biologically female and identified as cisgender and heterosexual women. As for stealthing, 1.33% of the participants had performed it and 11.44% had already undergone this practice. There was a significant association between having been stealthed and the variables female biological sex (p = 0.000) and identifying as a woman (p = 0.000). CONCLUSION: The occurrence of stealthing is higher among those who have been stealthed than among those who have done it and having been stealthed is associated with being female and identifying as a woman.

Effects of acrobatic training on spatial memory and astrocytic scar in CA1 subfield of hippocampus after chronic cerebral hypoperfusion in male and female rats.

Chronic cerebral hypoperfusion leads to neuronal loss in the hippocampus and spatial memory impairments. Physical exercise is known to prevent cognitive deficits in animal models; and there is evidence of sex differences in behavioral neuroprotective approaches. The aim of present study was to investigate the effects of acrobatic training in male and female rats submitted to chronic cerebral hypoperfusion. Males and females rats underwent 2VO (two-vessel occlusion) surgery and were randomly allocated into 4 groups of males and 4 groups of females, as follows: 2VO acrobatic, 2VO sedentary, Sham acrobatic and Sham sedentary. The acrobatic training started 45 days after surgery and lasted 4 weeks; animals were then submitted to object recognition and water maze testing. Brain samples were collected for histological and morphological assessment and flow cytometry. 2VO causes cognitive impairments and acrobatic training prevented spatial memory deficits assessed in the water maze, mainly for females. Morphological analysis showed that 2VO animals had less NeuN labeling and acrobatic training prevented it. Increased number of GFAP positive cells was observerd in females; moreover, males had more branched astrocytes and acrobatic training prevented the branching after 2VO. Flow cytometry showed higher mitochondrial potential in trained animals and more reactive oxygen species production in males. Acrobatic training promoted neuronal survival and improved mitochondrial function in both sexes, and influenced the glial scar in a sex-dependent manner, associated to greater cognitive benefit to females after chronic cerebral hypoperfusion.

Brazilian version of the King's Health Questionnaire: assessment of the structural validity and internal consistency in female urinary incontinence.

INTRODUCTION AND HYPOTHESIS: The use of valid patient-reported outcome measurements is essential in clinical and research settings. The structure of the Brazilian version of the King's Health Questionnaire (Br-KHQ) has not been evaluated. Thus, this study sought to evaluate the structural validity and internal consistency of the multi-item domains of the Br-KHQ in women with urinary incontinence (UI). METHODS: A total of 462 Brazilian Portuguese speakers with UI aged 18 years or older were included in this study. Participants answered the Br-KHQ, and a questionnaire containing demographic and personal information. The structure of the Br-KHQ was examined through Exploratory Factor Analysis (EFA) with the implementation of parallel analysis and evaluated using confirmatory factor analysis (CFA). For the latter, several goodness-of-fit indices were considered to evaluate the model fit of the structures tested in this study. Internal consistency was assessed using Cronbach's alpha, composite reliability, and coefficient omega. RESULTS: The EFA showed that the questionnaire has a five-factor structure, i.e., limitations of daily life, personal relationship, emotions, sleep/energy, and severity measures. The CFA demonstrated that this structure presented the most adequate goodness-of-fit indices and the lowest values of Akaike information criterion and Bayesian information criterion, compared with the original and Portuguese structure. High values (>0.70) of internal consistency were found. CONCLUSIONS: The Brazilian version of the KHQ is composed of a five-factor structure. Further studies should evaluate other measurement properties of the Br-KHQ to ensure reliable interpretation of this patient-reported outcome measure in clinical practice.