Effects of supplementing cassava root silage to grazing dairy cows on nutrient utilization, milk production and composition in the tropics.

The current study evaluated the effects of supplementing cassava root silage (CRS) to dairy cows grazing on Megathyrsus maximus cv Mombasa on nutrient intake and digestibility, as well as on milk production and composition. Ten primiparous Girolando cows with average body weight ± (SEM) of 373.45 ± (63.55) kg were used in a replicated 5 × 5 Latin square. Animals were subjected to five treatments: (I) grazing cows without supplementation (WCS); (II) grazing cows provided with 5 kg DM of supplement without CRS (0 g/kg DM of CRS) or including (III) 260, (IV) 520, and (V) 780 g/kg DM of CRS. Statistical analyses were performed using the PROC MIXED of SAS with significance at P < 0.05. Intake of neutral detergent fiber (NDF) and ether extract decreased (P < 0.01), while intake of non-fiber carbohydrates increased (P < 0.01), with increased CRS in the diets. Total DM intake and digestibility of DM, and digestibility of nutritional components were lower (P < 0.03) in WCS animals compared to supplemented animals, except for intake and digestibility of NDF, which was the opposite. Milk yield (MY) and fat corrected milk (FCM), as well as all milk components were unaffected (P > 0.05) by CRS inclusion. In contrast, MY, FCM, protein, lactose, casein, and non-fat milk solids (NFMS) were greater for animals that received supplementation (P < 0.05), compared to animals WCS. Milk fat and total dry extract (TMS) did not differ (P > 0.11) between two groups. In conclusion, CRS may be a potential corn meal replacer in the supplement of dairy cows under tropical conditions.

Evaluation of bone mineral density, microarchitecture, and detection of fractures on young patients living with human immunodeficiency virus: when and how to screen?

PURPOSE: People living with the human immunodeficiency virus (PLWH) developed higher life expectancy along with chronic bone disease over the past years. Our purpose is to evaluate bone mineral density, bone microarchitecture and fractures in young PLWH and understand the disease's contribution to bone derangements and fracture risk. METHODS: Eighty-one HIV-infected and 54 control young (20-50 years) male and female subjects were enrolled in this study. Methods for patient evaluation included DXA-VFA (dual energy X-rays and vertebral fracture assessment), HR-pQCT (high resolution peripheral quantitative computed tomography), biochemistry and FRAX. RESULTS: Fifty participants from each group completed all exams. Median age was 40 (25-49) vs. 36.5 (22-50) for the HIV and control groups, respectively (p 0.120). Ethnicity, body mass index, serum phosphorus, 25-hydroxyvitamin D, PTH and CTX were similar between groups, although ALP and OC suggested higher bone turnover in PLWH. VFA identified morphometric vertebral fractures in 12% of PLWH. PLWH had lower values for lumbar spine areal BMD and Z score, volumetric BMD, trabecular bone fraction (BV/TV) and trabecular number measured at the distal tibia by HR-pQCT; as a consequence, trabecular separation and heterogeneity were higher (all p < 0.05). The FRAX-estimated risk for hip and major osteoporotic fractures was statistically higher in PLWH (p < 0.001). CONCLUSION: Our results confirm severe bone impairment and fractures associated with HIV in young patients. Thus, we developed a screening protocol for young PLWH to detect bone fragility, reduce skeletal disease progression and morbimortality, decrease fracture risk, and increase quality of life.

Dual-energy X-ray absorptiometry: an effective approach for predicting broiler chicken body composition.

Two trials were carried out to develop and validate linear regression equations for body composition prediction using Dual-energy X-ray absorptiometry (DEXA). In Trial 1, 300 Cobb500 male chickens raised from 1 to 42 d of age were scanned in DEXA to estimate total weight, fat mass, soft lean tissue (SLT) mass, bone mineral content (BMC), and fat percentage. DEXA estimates were compared to body ash, crude fat, SLT (sum of protein and water) and scale body weight. The dataset was split, with 70% used for prediction equations development and 30% for testing, and the 5k-fold cross-validation analysis was used to optimize the equations. The R2, mean absolute error (MAE), and root-mean-squared error (RMSE) were used as precision and accuracy indicators. A negative correlation (ρ = -0.27) was observed for ash content, while no correlation was observed for protein content (P > 0.05). Predictive linear equations were developed to assess broiler weight (R2 = 0.999, MAE = 25.12, RMSE = 38.99), fat mass (R2 = 0.981, MAE = 13.87, RMSE = 21.28), ash mass (R2 = 0.956, MAE = 3.98, RMSE = 5.61), SLT mass (R2 = 0.997, MAE = 35.73, RMSE = 52.45), water mass (R2 = 0.997, MAE = 29.56, RMSE = 43.94), protein mass (R2 = 0.989, MAE = 12.94, RMSE = 19.05), fat content (R2 = 0.855, MAE = 0.81, RMSE = 1.05), SLT content (R2 = 0.658, MAE = 1.01, RMSE = 1.28), and water content (R2 = 0.678, MAE = 0.99, RMSE = 1.27). All equations passed the test. In Trial 2, 395 Cobb500 male chickens were raised from 1 to 42 d of age and used for validation of prediction equations. The equations developed for weight, fat mass, ash mass, SLT mass, water mass, and protein mass were validated. In conclusion, DEXA was found to be an effective approach for measuring the body composition of broilers when using predictive equations validated in this study for estimate calibration.

Percepciones del personal de salud sobre los efectos de la pandemia COVID-19 en un servicio de salud mental y adicciones

Objetivo: Analizar las percepciones del personal de salud sobre los efectos de la pandemia por COVID-19 en la organización de un servicio de salud mental y adicciones. Materiales y métodos: Estudio descriptivo, transversal, cuantitativo. Se aplicó una encuesta diseñada por el Observatorio Argentino de Drogas de la SEDRONAR (Secretaría de Políticas sobre Drogas de la Nación Argentina) al personal de salud del Centro Asistencial Córdoba durante el mes de noviembre 2020. Resultados: Según las percepciones del personal de salud, la institución sostuvo la admisión y la suspensión fue solamente sobre las prestaciones de terapia grupal durante la primera etapa, que se revirtió desarrollando grupos terapéuticos mediante videollamadas. En relación con la variación de la demanda de atención, el 68,9% mencionó estar totalmente en desacuerdo con la afirmación de que la misma disminuyó. El personal de salud observó una variabilidad en los motivos de consulta y un aumento en la demanda de atención, con un crecimiento de las consultas por violencia autoinfligida y por consumos problemáticos de sustancias. Conclusión: Las medidas de aislamiento implicaron una reorganización de los servicios y sus modalidades de atención. Se torna importante preparar a los servicios de salud mental y adicciones para brindar las prestaciones necesarias y dar respuesta a las demandas de atención durante este tipo de contingencias.

Objetive: To analyze the perceptions of health personnel about the effects of the COVID-19 pandemic on the organization of a mental health and drug abuse service. Materials and Methods: A descriptive, cross-sectional and quantitative. A survey designed by the Argentine Drugs Observatory of SEDRONAR (Secretaría de Políticas sobre Drogas de la Nación Argentina) was applied to all the health professionals at Centro Asistencial Córdoba during November 2020. Results: According to the perceptions of health personnel, the organization kept admissions open for new treatments and the suspension was only about group therapy benefits during the first moment of lockdown measures, which was reversed by developing therapeutic groups through video calls. Regarding the change in demand for attention, 68, 9% mentioned being totally at odds with the claim that it diminished. Health personnel perceived a variability in the reasons for consultation and an increase in the demand for attention with a growth in consultations due to self-inflicted violence and substance-related disorders. Conclusion: It is possible to conclude that lockdown measures involved a reorganization of services and their modalities of attention. Therefore, it becomes important to prepare mental health services and substance-related disorders to provide the necessary benefits and respond to the demands for attention during this type of critical incidents.

Relato de casos clínicos de pacientes após revascularização miocárdica fundamentados na Teoria de Enfermagem de Médio Alcance para Reabilitação Cardiovascular / Reportes de casos clínicos de pacientes tras revascularización miocárdica basado en la Teoría de Enfermería de Medio Rango para la Rehabilitación Cardiovascular / Clinical case report of patients after myocardial revascularization based on the Medium-Range Nursing Theory for Cardiovascular Rehabilitation

The objective is to describe home patient care plans after myocardial revascularization (MR) based on the Mid-Range Nursing Theory for Cardiovascular Rehabilitation (TMA Enf-RCV). This is a multiple case study in which data collection was performed at the home of seven patients in the postoperative period of MRI, in Sobral-Ceará, between June and December 2019. The information collected was organized in individual reports and then, joint analytical synthesis was performed. The assessment of rehabilitating behavior and stimulus for cardiovascular rehabilitation (CVR) involved physiological adaptive problems, self-concept, role performance and interdependence, with 50% of nursing diagnoses focusing on problems and being associated with the physiological mode and57% of health promotion diagnoses were related to self-concept mode. The nursing rehabilitation intervention included the promotion of physical exercises, encouragement of the patient and family in care, education about adaptive strategies, psychosocial support, among others. This study supports the applicability of TMA Enf-RCV as an effective intervention for CVR with a focus on quality of life.(AU)

El objetivo es describir los planes de atención domiciliaria del paciente después de la revascularización miocárdica (RM) basados en la Teoría de Enfermería de Rango Medio para la Rehabilitación Cardiovascular (TMA Enf-RCV). Se trata de un estudio de caso múltiple en el que la recogida de datos se realizó en el domicilio de siete pacientes en el postoperatorio de RM, en Sobral-Ceará, entre junio y diciembre de 2019. La información recogida se organizó en informes individuales y luego, se realizó la síntesis analítica conjunta. La evaluación de la conducta rehabilitadora y el estímulo para la rehabilitación cardiovascular (RCV) involucró problemas fisiológicos adaptativos, autoconcepto, desempeño de roles e interdependencia, con un 50% de los diagnósticos de enfermería centrados en problemas y asociados con el modo fisiológico y un 57% de los diagnósticos de promoción de la salud se relacionaron con el modo de autoconcepto. La intervención de rehabilitación de enfermería incluyó la promoción de ejercicios físicos, el estímulo del paciente y la familia en el cuidado, educación sobre estrategias adaptativas, apoyo psicosocial, entre otros. Este estudio respalda la aplicabilidad de TMA Enf-RCV como una intervención eficaz para el RCV con un enfoque en la calidad de vida.(AU)

Objetivase descrever planos de cuidados de pacientes em domicílio após revascularização miocárdica (RM) fundamentados na Teoria de Enfermagem de Médio Alcance para Reabilitação Cardiovascular (TMA Enf-RCV). Tratase de um estudo de casos múltiplo no qual a coleta de dados realizouse no domicílio de sete pacientes em pós-operatório de RM, em Sobral-Ceará, entre junho e dezembro de 2019. As informações coletadas foram organizadas em relatórios individuais e em seguida, realizada síntese analítica conjunta. A avaliação do comportamento reabilitador e estímulo para reabilitação cardiovascular (RCV) envolveram pro-blemas adaptativos fisiológicos, de autoconceito, de desempenho de papel e de interdependência, sendo que 50% dos diagnósticos de enfermagem tinham foco nos problemas e se associaram ao modo fisiológico e 57%dos diagnósticos de promoção da saúde foram referentes ao modo autoconceito. A intervenção reabilitadora de enfermagem contemplou promoção de exercícios físicos, encorajamento do paciente e da família no cuidado, educação acerca de estratégias adaptativas, suporte psicossocial, dentre outros. Este estudo subsidia a aplicabilidade da TMA Enf-RCV como intervenção efetiva para a RCV com foco na qualidade de vida.(AU)

Study of the proviral load levels and mRNA expression of cytokines in peripheral blood mononuclear cells and somatic milk cells in cattle with different BLV infection profiles.

The retrovirus bovine leukemia virus (BLV) might produce abnormal immune function, associated with susceptibility to developing other infectious diseases, including mastitis. This study aimed to determine the proviral load and cytokines gene expression in peripheral blood mononuclear cells (PMBC) and milk somatic cells (SC) in BLV-infected and non-infected cattle. Of 27 BLV-infected cows in PBMC, 17 (62.96%) had a high proviral load (HPL), and 10 (37.04%) had a low proviral load (LPL). All SC samples had low proviral load (LPL-SC). Higher IFN-γ and IL-10 expression, and lower IL-12 and IL-6 expression, were found in PBMC from BLV-infected compared to BLV non-infected cattle. Moreover, higher IFN-γ, IL-12, and IL-6 expression, and lower IL-10 expression were observed in cattle with LPL-PBMC compared to HPL-PBMC. In milk samples, lower IFN-γ and higher IL-12 mRNA expression were observed in LPL-SC compared to BLV non-infected cattle in SC. IL-10 and IL-6 expression mRNA was significantly lower in LPL-SC than in SC from BLV non-infected cattle. This study shows that milk SC maintains lower proviral load levels than PBMC. This first report on Th1 and Th2 cytokines expression levels in SC may be relevant to future control strategies for BLV infection, mastitis, and udder health management.

Exploring Soil Bacterial Diversity in Relation to Edaphic Physicochemical Properties of High-altitude Wetlands from Argentine Puna.

High Andean wetlands, particularly those known as vegas or bofedales, are essential conservation ecosystems due to their significant contribution to ecosystem services. The soil microbial communities in these ecosystems play a crucial role in fundamental processes such as decomposition and nutrient cycling, sustaining life in the region. However, at present, these microbial communities are poorly understood. In order to contribute to this knowledge, we aimed to characterize and compare the microbial communities from soils of seven Argentine Puna vegas and to analyze their association with soil physicochemical characteristics. Proteobacteria (Gamma and Alphaproteobacteria) was the dominant phylum across all vegas, followed in abundance by Actinobacteriota, Desulfobacterota, and Chloroflexi. Furthermore, the abundance of specific bacterial families and genera varied significantly between the vegas; some of them can be associated with plant growth-promoting bacteria such as Rhodomicrobium in La Quebradita and Quebrada del Diablo, Bacillus in Antofalla and Las Quinuas. Laguna Negra showed no shared ASVs with abundance in genera such as Sphingomonas and Pseudonocardia. The studied vegas also differed in their soil physicochemical properties; however, associations between the composition of microbial communities with the edaphic parameters measured were not found. These results suggest that other environmental factors (e.g., geographic, climatic, and plant communities' characteristics) could determine soil microbial diversity patterns. Further investigations are needed to be focused on understanding the composition and function of microorganisms in the soil associated with specific vegetation types in these high-altitude wetlands, which will provide valuable insights into the ecological dynamics of these ecosystems for conservation strategies.

[Digital transformation as a strategy to strengthen essential public health functions in the AmericasTransformação digital como estratégia de fortalecimento das funções essenciais de saúde pública nas Américas]. / La transformación digital como estrategia para el fortalecimiento de las funciones esenciales de salud pública en las Américas.

This article systematizes the main actions taken to address the essential public health functions (EPHF) in the context of the digital transformation of health systems. A narrative review was conducted, in which the conceptual framework of the renewed EPHF was linked to the eight guiding principles of the digital transformation of the health sector.In the selected publications, the main actions in digital transformation included electronic health records, telemedicine, digital health legislation, digital literacy, patient portals, open-source technologies, and data governance. These actions make it possible to increase the quality and efficiency of health systems, promote accessibility, and improve health outcomes.

Este artigo sistematiza as principais ações de transformação digital (TD) dos sistemas de saúde relacionadas às funções essenciais de saúde pública (FESP). Foi realizada uma revisão narrativa, inter-relacionando o marco conceitual das FESP renovadas com base nos os oito princípios orientadores da transformação digital do setor da saúde.Nas publicações selecionadas, constatou-se que as principais ações de TD incluem prontuários eletrônicos, telemedicina, legislação de saúde digital, letramento digital, portais para pacientes, tecnologias de código aberto e governança de dados. Essas ações permitem aumentar a qualidade e a eficiência dos sistemas de saúde, aprimorar a acessibilidade e melhorar os resultados de saúde.

La transformación digital como estrategia para el fortalecimiento de las funciones esenciales de salud pública en las Américas / Digital transformation as a strategy to strengthen essential public health functions in the Americas / Transformação digital como estratégia de fortalecimento das funções essenciais de saúde pública nas Américas

[RESUMEN]. En el presente artículo se sistematizaron las principales acciones de transformación digital (TD) de los sistemas de salud que abordan a las funciones esenciales de la salud pública (FESP). Se realizó una revisión narrativa, donde se interrelacionó el marco conceptual de las funciones esenciales de la salud pública renovadas con los ocho principios rectores de la transformación digital del sector de la salud. En las publicaciones seleccionadas, se halló que las principales acciones de la TD comprenden la historia clínica electrónica, la telemedicina, la legislación en salud digital, la alfabetización digital, los portales del paciente, las tecnologías de código abierto y la gobernanza de datos. Estas acciones posibilitan aumentar la calidad y la eficiencia de los sistemas de salud, favorecer la accesibilidad y mejorar los resultados de salud.

[ABSTRACT]. This article systematizes the main actions taken to address the essential public health functions (EPHF) in the context of the digital transformation of health systems. A narrative review was conducted, in which the conceptual framework of the renewed EPHF was linked to the eight guiding principles of the digital transformation of the health sector. In the selected publications, the main actions in digital transformation included electronic health records, telemedicine, digital health legislation, digital literacy, patient portals, open-source technologies, and data governance. These actions make it possible to increase the quality and efficiency of health systems, promote accessibility, and improve health outcomes.

[RESUMO]. Este artigo sistematiza as principais ações de transformação digital (TD) dos sistemas de saúde relacionadas às funções essenciais de saúde pública (FESP). Foi realizada uma revisão narrativa, interrelacionando o marco conceitual das FESP renovadas com base nos os oito princípios orientadores da transformação digital do setor da saúde. Nas publicações selecionadas, constatou-se que as principais ações de TD incluem prontuários eletrônicos, telemedicina, legislação de saúde digital, letramento digital, portais para pacientes, tecnologias de código aberto e governança de dados. Essas ações permitem aumentar a qualidade e a eficiência dos sistemas de saúde, aprimorar a acessibilidade e melhorar os resultados de saúde.

Microglia-secreted TNF-α affects differentiation efficiency and viability of pluripotent stem cell-derived human dopaminergic precursors.

Disease is a neurodegenerative disorder characterised by the progressive loss of dopaminergic cells of the substantia nigra pars compacta. Even though successful transplantation of dopamine-producing cells into the striatum exhibits favourable effects in animal models and clinical trials; transplanted cell survival is low. Since every transplant elicits an inflammatory response which can affect cell survival and differentiation, we aimed to study in vivo and in vitro the impact of the pro-inflammatory environment on human dopaminergic precursors. We first observed that transplanted human dopaminergic precursors into the striatum of immunosuppressed rats elicited an early and sustained activation of astroglial and microglial cells after 15 days' post-transplant. This long-lasting response was associated with Tumour necrosis factor alpha expression in microglial cells. In vitro, conditioned media from activated BV2 microglial cells increased cell death, decreased Tyrosine hydroxylase-positive cells and induced morphological alterations on human neural stem cells-derived dopaminergic precursors at two differentiation stages: 19 days and 28 days. Those effects were ameliorated by inhibition of Tumour necrosis factor alpha, a cytokine which was previously detected in vivo and in conditioned media from activated BV-2 cells. Our results suggest that a pro-inflammatory environment is sustained after transplantation under immunosuppression, providing a window of opportunity to modify this response to increase transplant survival and differentiation. In addition, our data show that the microglia-derived pro-inflammatory microenvironment has a negative impact on survival and differentiation of dopaminergic precursors. Finally, Tumour necrosis factor alpha plays a key role in these effects, suggesting that this cytokine could be an interesting target to increase the efficacy of human dopaminergic precursors transplantation in Parkinson's Disease.

Effect of Hydrogen Peroxide Application on Salt Stress Mitigation in Bell Pepper (Capsicum annuum L.).

The present study aimed to evaluate the effects of the foliar application of hydrogen peroxide on the attenuation of salt stress on the growth, photochemical efficiency, production and water use efficiency of 'All Big' bell pepper plants. The experiment was conducted under greenhouse conditions in Campina Grande, PB, Brazil. Treatments were distributed in a randomized block design, in a 5 × 5 factorial scheme, corresponding to five levels of electrical conductivity of irrigation water (0.8, 1.2, 2.0, 2.6 and 3.2 dS m-1) and five concentrations of hydrogen peroxide (0, 15, 30, 45 and 60 µM), with three replicates. Foliar application of hydrogen peroxide at concentration of 15 µM attenuated the deleterious effects of salt stress on photochemical efficiency, biomass accumulation and production components of bell pepper plants irrigated using water with an electrical conductivity of up to 3.2 dS m-1. Foliar spraying of hydrogen peroxide at a concentration of 60 µM intensified the effects of salt stress. The 'All Big' bell pepper was classified as moderately sensitive to salt stress, with an irrigation water salinity threshold of 1.43 dS m-1 and a unit decrease of 8.25% above this salinity level.

Characterization of the flanking region of the Shiga toxin operon in Stx2a bacteriophages reveals a diversity of the NanS-p sialate O-acetylesterase gene.

Shiga toxin-producing E. coli (STEC) are diarrheagenic strains that can cause bloody diarrhea and hemolytic-uremic syndrome. Their main virulence factor, the Shiga toxin (Stx), is encoded by phages integrated into the bacterial chromosome. Stx phages are widely diverse and carry many genes with limited or unknown function. As the toxin subtype Stx2a is associated with highly pathogenic strains, this study was mainly focused on the characterization of the stx flanking region of Stx2a phages. Of particular interest was a sialate O-acetylesterase (NanS-p), which has been described previously to be encoded downstream stx in some phage genomes and may confer a growth advantage for STEC. Complete DNA sequences of Stx2a phages and prophages were retrieved from the GenBank database, and the genomic regions from anti-terminator Q to holin S genes were bioinformatically analyzed. Predicted NanSp sequences from phages encoding other Stx subtypes were also studied. Additionally, expression of nanS-p was quantified by qPCR in strains selected from our laboratory collection. The analysis of Stx2a phage genomes showed that all carried the Q, stx2a, nanS-p and S genes, but with allele diversity and other sequence differences. In particular, sequence differences were detected in each of the three domains of NanS-p esterases encoded by Stx2a phages and other Stx phages; however, nanS-p was not identified in the Stx2e, Stx2f and Stx2g phages analyzed. The expression of nanS-p increased in most stx2a-positive strains under phage inducing conditions, as was previously shown for stx2a. As the present work showed diversity at the Q-S region among Stx phages, and particularly in the encoded NanS-p enzyme, future studies will be necessary to evaluate if NanS-p variants differ in their activity and to assess the impact of the absence of nanS-p in certain Stx phages.

Chronic hypoparathyroidism is associated with increased cortical bone density evaluated using high-resolution peripheral quantitative computed tomography.

PURPOSE: This cross-sectional study aimed to assess bone mineral density (BMD), bone microarchitecture and fracture prevalence in women with chronic postsurgical hypoparathyroidism (hypoPT). METHODS: Twenty-seven women with postsurgical hypoPT and 44 age-matched healthy women were included. Dual-energy X-ray absorptiometry was used to evaluate areal BMD and vertebral fracture assessment. High-resolution peripheral quantitative computed tomography assessed microarchitecture and volumetric BMD at the distal radius and tibia. Biochemical parameters, including fibroblast growth factor 23, C-terminal cross-linking telopeptide of type I collagen (ICTP), and procollagen type I N-terminal propeptide (P1NP), were also measured. Previous low-impact fractures were assessed and the 10-year fracture risk was estimated using the FRAX tool for the Brazilian population. RESULTS: No participant had prevalent clinical fractures, and both groups showed low risk for major and hip based on FRAX tool, but two hypoPT patients had moderate to severe morphometric vertebral fractures. Women with hypoPT had increased aBMD in the lumbar spine, femoral neck and total hip (p < 0.05) and higher cortical vBMD in the radius (p = 0.020) and tibia (p < 0.001). Trabecular bone was not affected. Both P1NP and ICTP suggested low bone turnover rates, but no significant correlation was observed between bone density or microstructure and any of the biochemical parameters. CONCLUSIONS: The prevalence of fragility fractures was low in HypoPT women and compatible with low fracture risk estimated by the FRAX tool. Patients had a higher aBMD and cortical vBMD than those of healthy control women, but the association with decreased bone turnover remains unclear.

Untreated osteoporosis and higher FRAX as risk factors for tooth loss: a 5-year prospective study.

INTRODUCTION: Studies have shown that an impaired bone condition, represented by osteoporosis and increased fracture risk, may potentially aggravate periodontal disease and, consequently, the risk of tooth loss. This 5-year prospective study aimed to investigate whether systemic bone condition represents risk factor for tooth loss due to periodontal disease amongst elderly women. MATERIAL AND METHODS: Seventy-four participants, aged ≥ 65 years, who attended the 5-years recall for periodontal evaluation were involved. Baseline exposures were osteoporosis and fracture risk probabilities (FRAX). Women were grouped according to bone mineral density (BMD) and years of bone treatment for osteoporosis. The primary outcome at a 5-year follow-up was the number of tooth loss due to periodontal disease. Periodontitis staging and grading, and causes of tooth loss were recorded. RESULTS: The multivariate Poisson regression models showed that women with untreated/shortly treated osteoporosis were 4 times more likely to present higher number of tooth loss due to periodontal disease than those with normal BMD or treated for ≥ 3 years (risk ratio (RR) = 4.00, 95% CI 1.40-11.27). Higher FRAX was also linked to tooth loss (RR = 1.25, 95% CI 1.02-1.53). Receiver-operating characteristic (ROC) curve suggested that women with history of ≥ 1 tooth losses have higher chances of worse major FRAX (sensitivity = 72.2%; specificity = 72.2%). CONCLUSION: In this 5-year study, higher FRAX and untreated osteoporosis were risk factors for tooth loss. Women with normal BMD or treated for osteoporosis for ≥ 3 years did not show increased risk. Management of skeletal conditions should be emphasized with periodontal care for the prevention of tooth loss in elderly women.

Existing as a being-with-heart-disease-who-developed-pressure-wounds: an understanding based on Martin Heidegger.

OBJECTIVE: To understand, using Martin Heidegger's phenomenological framework, the Being who experiences a heart disease and develops a pressure injury. METHOD: Qualitative, phenomenological study using Martin Heidegger's theoretical-philosophical-methodological framework. Nine participants were interviewed at their residences, from October to December 2015, Ceará. RESULTS: Six meaning units were revealed: experiencing difficulties; dealing with the treatment of pressure wounds; not knowing the cardiac disease; being supported by family and friends; experiencing changes caused by disease; and maintaining faith in God. These Daily life was apprehended in an inauthentic life, chatter, curiosity, and ambivalence. Imprisoned to the vigor of having been, they live in anguish, supported by the faith in God and being-with-others in a movement of attentiveness. CONCLUSION: The phenomenon interferes with patients and families' daily lives rendering them vulnerable. There is a need for nursing to reflect on this experience and incorporate care that reaches human existence.

Effect of heat stress on TNF-α, TNFRI and TNFRII expression in BLV infected dairy cattle.

High temperatures for extended periods, which do not allow animals to recover from heat stress, affect in particular those BLV-infected animals that carry a high proviral load. For this study, animals were discriminated between BLV (+) and BLV (-), and those belonging to the first group, were classified based on their proviral load. The expression of the inflammatory cytokine TNF-α and its receptors, which play an important role in disease progression, were quantified by qPCR in two different seasons. During the summer, average temperature was 19.8 °C, maximums higher than 30 °C were frequent. Instead, during the autumn, the average temperature was 12.63 °C, and temperatures never exceeded 27 °C. During this season, almost no periods of temperatures exceeded the comfort limit. Our results revealed that the expression levels of TNF-α and its receptors were downregulated in animals with high proviral load. This fact could affect their antiviral response and predispose to viral dissemination; over time, animals with a poorer immune system are prone to acquiring opportunistic diseases. Conversely, animals with LPL maintained their expression profile, with behavior comparable to non-infected animals. These findings should be considered by producers and researchers, given the problems that global warming is causing lately to the planet.

Functional characterization of xanthorhodopsin in Salinivibrio socompensis, a novel halophile isolated from modern stromatolites.

A putative xanthorhodopsin-encoding gene, XR34, was found in the genome of the moderately halophilic gammaproteobacterium Salinivibrio socompensis S34, isolated from modern stromatolites found on the shore of Laguna Socompa (3570 m), Argentina Puna. XR-encoding genes were clustered together with genes encoding X-carotene, retinal (vitamin-A aldehyde), and carotenoid biosynthesis enzymes while the carotene ketolase gene critical for the salinixanthin antenna compound was absent. To identify its functional behavior, we herein overexpressed and characterized this intriguing microbial rhodopsin. Recombinant XR34 showed all the salient features of canonical microbial rhodopsin and covalently bound retinal as a functional chromophore with λmax = 561 nm (εmax ca. 60,000 M-1 cm-1). Two canonical counterions with pK values of around 6 and 3 were identified by pH titration of the recombinant protein. With a recovery time of approximately half an hour in the dark, XR34 shows light-dark adaptation shifting the absorption maximum from 551 to 561 nm. Laser-flash induced photochemistry at pH 9 (deprotonated primary counterion) identified a photocycle starting with a K-like intermediate, followed by an M-state (λmax ca. 400 nm, deprotonated Schiff base), and a final long wavelength-absorbing N- or O-like intermediate before returning to the parental 561 nm-state. Initiating the photocycle at pH 5 (protonated counterion) yields only bathochromic intermediates, due to the lacking capacity of the counterion to accept the Schiff base proton. Illumination of the membrane-embedded protein yielded a capacitive transport current. The presence of the M-intermediate under these conditions was demonstrated by a blue light-induced shunt process.

The living forms of Microcoleus vaginatus and their contributions to the aggregate structure of biocrusts.

Microcoleus vaginatus has been regarded as the important contributor for biocrust formation and ecological services. However, little is known about its living forms in biocrusts, and whether the living form is related to biocrust structure. Therefore, in this study, natural biocrusts collected from the Gurbantunggut Desert were divided into different aggregate/grain fractions, aiming at investigating the living forms of M. vaginatus in biocrusts at fine scale, and exploring its roles in aggregate structure and ecological functions of biocrusts. The results showed that two distinct living forms of M. vaginatus had been identified from the biocrusts. The non-bundling M. vaginatus was mainly distributed in the fractions of > 0.5 mm, forming aggregate structure by cementing sand particles firmly; while the bundling M. vaginatus, distributed mainly among the free sand particles with diameter < 0.5 mm, and easily migrated up to biocrust surface after hydration. Furthermore, the aggregate structure formed by non-bundling M. vaginatus supported a higher biomass, nutrient contents, and enzyme activities. Altogether, our results suggest that the strong migrating ability of bundling M. vaginatus contributes to the environmental adaptation and light resource acquirement, while non-bundling M. vaginatus acts as the constructor of the aggregate structure in biocrusts.

Chlorella sorokiniana FK-montmorillonite interaction enhanced remediation of heavy metals in tailings.

Non-ferrous metal mining activities are known to cause ecological irreversible damage in the tailings and surrounding areas as well as heavy metal (HM) contamination. The enhancement of Chlorella-montmorillonite interaction on the remediation of HM contaminated tailings was verified from the lab to the tailings in Daye City, Hubei Province, China. The results showed a positive correlation between the quantity of montmorillonite and the transformation of Pb and Cu into residual and carbonate-binding states, which resulted in a considerable decrease in the leaching ratio. The buildup of tailings fertility throughout this process benefited from montmorillonite's ability to buffer environmental changes and store water. This further offers a required environmental foundation for the rebuilding of microbial community and the growth of herbaceous plants. The structural equation model demonstrated that the interaction between Chlorella and montmorillonite directly affected the stability of HM, and that this interaction also had an impact on the accumulation of organic carbon, total nitrogen, and available phosphorus, which improved the immobilization of Pb, Cu, Cd, and Zn. This work made the first attempt to apply Chlorella-montmorillonite composite to in-situ tailings remediation, and proposed that the combination of inorganic clay minerals and organic microorganisms was an eco-friendly, long-lasting, and efficient method for immobilizing multiple-HMs in mining areas.