In situ short-term responses of Amazonian understory plants to elevated CO2.

The response of plants to increasing atmospheric CO2 depends on the ecological context where the plants are found. Several experiments with elevated CO2 (eCO2) have been done worldwide, but the Amazonian forest understory has been neglected. As the central Amazon is limited by light and phosphorus, understanding how understory responds to eCO2 is important for foreseeing how the forest will function in the future. In the understory of a natural forest in the Central Amazon, we installed four open-top chambers as control replicates and another four under eCO2 (+250 ppm above ambient levels). Under eCO2, we observed increases in carbon assimilation rate (67%), maximum electron transport rate (19%), quantum yield (56%), and water use efficiency (78%). We also detected an increase in leaf area (51%) and stem diameter increment (65%). Central Amazon understory responded positively to eCO2 by increasing their ability to capture and use light and the extra primary productivity was allocated to supporting more leaf and conducting tissues. The increment in leaf area while maintaining transpiration rates suggests that the understory will increase its contribution to evapotranspiration. Therefore, this forest might be less resistant in the future to extreme drought, as no reduction in transpiration rates were detected.

Direct evidence for phosphorus limitation on Amazon forest productivity.

The productivity of rainforests growing on highly weathered tropical soils is expected to be limited by phosphorus availability1. Yet, controlled fertilization experiments have been unable to demonstrate a dominant role for phosphorus in controlling tropical forest net primary productivity. Recent syntheses have demonstrated that responses to nitrogen addition are as large as to phosphorus2, and adaptations to low phosphorus availability appear to enable net primary productivity to be maintained across major soil phosphorus gradients3. Thus, the extent to which phosphorus availability limits tropical forest productivity is highly uncertain. The majority of the Amazonia, however, is characterized by soils that are more depleted in phosphorus than those in which most tropical fertilization experiments have taken place2. Thus, we established a phosphorus, nitrogen and base cation addition experiment in an old growth Amazon rainforest, with a low soil phosphorus content that is representative of approximately 60% of the Amazon basin. Here we show that net primary productivity increased exclusively with phosphorus addition. After 2 years, strong responses were observed in fine root (+29%) and canopy productivity (+19%), but not stem growth. The direct evidence of phosphorus limitation of net primary productivity suggests that phosphorus availability may restrict Amazon forest responses to CO2 fertilization4, with major implications for future carbon sequestration and forest resilience to climate change.

Tracking and plant growth-promoting effect of Paraburkholderia tropica MTo-293 applied to Solanum lycopersicum.

Paraburkholderia tropica MTo-293 was applied as an experimental bio-input to Solanum lycopersicum (tomato) cv. Platense. Different plant growth systems and inoculation strategies were tested to evaluate P. tropica plant colonization at the seedling stage (growth chamber) using culture-dependent and -independent techniques. The effect of P. tropica on plant growth was evaluated in the growth chamber and greenhouse (productive stage) by biomass accumulation and fruit production, respectively. P. tropica was able to colonize the surface and inner root and stem of tomato seedlings regardless of the inoculation strategy-at sowing and/or before transplanting-showing the competitive nature of P. tropica in nonsterile substrate systems. A nested polymerase chain reaction was validated to track P. tropica in tomato plants even in the inner stem with endophytic P. tropica populations of less than 102 CFU g-1 of fresh weight. Efficient colonization of P. tropica correlated with a positive effect on tomato growth when applied at sowing and/or before transplanting: plant growth promotion was observed not only at the seedling stage but also at productive stages improving crop yield in two different seasons. To our knowledge, this report is the first to track and evaluate the plant growth-promoting effect of P. tropica MTo-293 in tomato plants grown in nonsterile substrate systems.

Changes in leaf functional traits with leaf age: when do leaves decrease their photosynthetic capacity in Amazonian trees?

Most leaf functional trait studies in the Amazon basin do not consider ontogenetic variations (leaf age), which may influence ecosystem productivity throughout the year. When leaf age is taken into account, it is generally considered discontinuous, and leaves are classified into age categories based on qualitative observations. Here, we quantified age-dependent changes in leaf functional traits such as the maximum carboxylation rate of ribulose-1,5-biphosphate carboxylase/oxygenase (Rubisco) (Vcmax), stomatal control (Cgs%), leaf dry mass per area and leaf macronutrient concentrations for nine naturally growing Amazon tropical trees with variable phenological strategies. Leaf ages were assessed by monthly censuses of branch-level leaf demography; we also performed leaf trait measurements accounting for leaf chronological age based on days elapsed since the first inclusion in the leaf demography, not predetermined age classes. At the tree community scale, a nonlinear relationship between Vcmax and leaf age existed: young, developing leaves showed the lowest mean photosynthetic capacity, increasing to a maximum at 45 days and then decreasing gradually with age in both continuous and categorical age group analyses. Maturation times among species and phenological habits differed substantially, from 8 ± 30 to 238 ± 30 days, and the rate of decline of Vcmax varied from -0.003 to -0.065 µmol CO2 m-2 s-1 day-1. Stomatal control increased significantly in young leaves but remained constant after peaking. Mass-based phosphorus and potassium concentrations displayed negative relationships with leaf age, whereas nitrogen did not vary temporally. Differences in life strategies, leaf nutrient concentrations and phenological types, not the leaf age effect alone, may thus be important factors for understanding observed photosynthesis seasonality in Amazonian forests. Furthermore, assigning leaf age categories in diverse tree communities may not be the recommended method for studying carbon uptake seasonality in the Amazon, since the relationship between Vcmax and leaf age could not be confirmed for all trees.

Occurrence and bioacessibility of mycotoxins in fish feed.

In this study Aflatoxin B1 (AFB1), ochratoxin A (OTA) and zearalenone (ZEN) occurrence in fish feed, regarding its chemical composition, were investigated. Besides, AFB1 bioaccessibility to fish was evaluated by in vitro digestion. Mycotoxins were extracted by QuEChERS and quantified by HPLC-FLD. Results showed that 93.3% of the samples were contaminated at maximum levels of 16.5, 31.6, and 322 µg/kg in the cases of AFB1, OTA, and ZEN, respectively. A positive correlation between OTA, ZEN contamination, and lipid content was observed. Risk estimation of feed consumption by fish at the highest levels of AFB1, OTA, and ZEN shows that the younger the fish, the higher the risk of exposure to mycotoxins. The AFB1 bioaccessibility assay showed that 85% of this mycotoxin may be absorbed by fish. Therefore, establishing maximum levels in the fishing sector is fundamental to contribute to feed quality and nutritional safety of fish species.

Peroxidase as a simultaneous degradation agent of ochratoxin A and zearalenone applied to model solution and beer.

The aim of this study was to evaluate the action of the commercial peroxidase (POD) enzyme (Armoracia rusticana) on the simultaneous degradation of ochratoxin A (OTA) and zearalenone (ZEA) in model solution and beer. For this purpose, the reaction parameters for POD action were optimized, POD application in the degradation of mycotoxins in model solution and beer was evaluated and the kinetic parameters of POD were defined (Michaelis-Menten constant - KM and maximal velocity - Vmax). In the reaction conditions (pH 7, ionic strength of 25 mM, incubation at 30 °C, addition of 26 mM H2O2 and 1 mM potassium ion), POD (0.6 U mL-1) presented the maximum activity for simultaneous degradation of OTA and ZEA of 27.0 and 64.9%, respectively, in model solution after 360 min. The application of POD in beer resulted in the simultaneous degradation of OTA and ZEA of 4.8 and 10.9%, respectively. The kinetic parameters KM and Vmax for degradation of OTA and ZEA were 50 and 10,710 nM and 0.168 and 72 nM min-1, respectively. Therefore, POD can be a promising alternative to mitigate the contamination of OTA and ZEA in model solution and beer, minimizing their effects in humans.

Sources, quantification techniques, associated hazards, and control measures of mycotoxin contamination of aquafeed.

With the productive intensification of fish farming, the partial or total replacement of fishmeal by ingredients of plant origin became a reality within the feed industry, with the aim of reducing costs. However, this practice increased the impact of mycotoxin contamination. Studies have shown that mycotoxins can induce various disorders in fish, such as cellular and organic alterations, as well as impair functional and morphological development, and, in more severe cases, mortality. Thus, studies have been conducted to evaluate and develop strategies to prevent the formation of mycotoxins, as well as to induce their elimination, inactivation or reduction of their availability in feed.

Aflatoxin M1 and B1 in Colombian milk powder and estimated risk exposure.

Aflatoxin M1 (AFM1) and aflatoxin B1 (AFB1) were determined in 51 milk powder samples purchased from different grocery stores located in the Caribbean region of Colombia. Analysis was conducted using QuEChERS extraction and high-performance liquid chromatography with fluorescence detection. Results from the analytical method showed recovery ranges from 65% to 110% and relative standard deviations lower than 20%. AFM1 was detected in 100% of the milk samples (0.20-1.19 µg/kg) and 55% exceeded the maximum level in milk (0.5 µg/kg) set by the Colombian and European regulations. AFB1 was not detected in any of the analysed samples. Considering the measured contamination the maximum AFM1 level that can be ingested by consumption of milk powder is 0.007-0.013 µg/person/day. These values are above the average dietary intake estimated in Latin America according to the Joint FAO/WHO Expert Committee, which is 0.0035 µg/person/day.

Embolism resistance drives the distribution of Amazonian rainforest tree species along hydro-topographic gradients.

Species distribution is strongly driven by local and global gradients in water availability but the underlying mechanisms are not clear. Vulnerability to xylem embolism (P50 ) is a key trait that indicates how species cope with drought and might explain plant distribution patterns across environmental gradients. Here we address its role on species sorting along a hydro-topographical gradient in a central Amazonian rainforest and examine its variance at the community scale. We measured P50 for 28 tree species, soil properties and estimated the hydrological niche of each species using an indicator of distance to the water table (HAND). We found a large hydraulic diversity, covering as much as 44% of the global angiosperm variation in P50 . We show that P50 : contributes to species segregation across a hydro-topographic gradient in the Amazon, and thus to species coexistence; is the result of repeated evolutionary adaptation within closely related taxa; is associated with species tolerance to P-poor soils, suggesting the evolution of a stress-tolerance syndrome to nutrients and drought; and is higher for trees in the valleys than uplands. The large observed hydraulic diversity and its association with topography has important implications for modelling and predicting forest and species resilience to climate change.

Zearalenone reduction by commercial peroxidase enzyme and peroxidases from soybean bran and rice bran.

The peroxidase (POD) enzyme, obtained from different sources, has been described in the literature regarding its good results of reduction in concentration or degradation levels of mycotoxins, such as aflatoxin B1, deoxynivalenol and zearalenone (ZEA). This study aimed at evaluating the action of commercial POD and POD from soybean bran (SB) and rice bran (RB) in ZEA reduction in a model solution and the characterisation of the mechanism of enzyme action. POD was extracted from SB and RB in phosphate buffer by orbital agitation. Evaluation of the action of commercial POD and POD from SB and RB in ZEA reduction was carried out in phosphate buffer and aqueous solution, respectively. Parameters of (Michaelis-Menten constant) (KM) and maximal rate (Vmax) were determined in the concentration range from 0.16 to 6 µg mL-1. ZEA reduction was determined and the mechanism of enzyme action was characterised by FTIR and high-pressure liquid chromatography-electrospray tandem mass spectrometry. Commercial POD and POD from RB and SB reduced ZEA concentration by 69.9%, 47.4% and 30.6% in 24 h, respectively. KM values were 39.61 and 8.90 µM, whereas Vmax values were 0.170 and 0.011 µM min-1 for commercial POD and POD from RB, respectively. The characterisation of the mechanism of enzyme action showed the oxidoreductive action of commercial POD in the mycotoxin. The use of commercial POD and POD from agro-industrial by-products, such as SB and RB, could be a promising alternative for ZEA biodegradation.

Impact on the quality of life of women with breast cancer undergoing chemotherapy in public and private care.

OBJECTIVES: To compare the general quality of life of women with breast cancer undergoing chemotherapy in a public and a private institution. METHODS: Longitudinal observational study including 115 women with breast cancer in an outpatient chemotherapy treatment at two health institutions, one public and one private, in the city of Curitiba (Brazil). The Quality of Life Questionnaire-C30 and the Quality of Life Questionnaire - Breast Cancer Module instruments were applied at three moments of treatment (onset, 40-50 days, and 85-95 days after initiation). RESULTS: Women's global health status was affected in both groups since the first phase of chemotherapy (76.2 points in the private institution and 74.6 points in the public institution, considering 100 points = maximum health). In both groups there was worsening of quality of life over time, which was lower in women in the private institution (second phase = 75.0 and third phase = 74; p=0.47), compared to those in the public institution (second phase = 71.5 and third phase 69.1; p=0.02). Regarding the type of institution, the most committed functions were the emotional and social in the private, and physical and pain in the public. CONCLUSIONS: The global quality of life of women with breast cancer deteriorated as a result of chemotherapy in both institutions, and it was lower in those receiving private care. Nursing should consider the type of institution responsible for women's care in order to provide comprehensive care that considers the functions affected at each phase of treatment.

Assessment of bacterial inoculant formulated with Paraburkholderia tropica to enhance wheat productivity.

Paraburkholderia tropica is an endophytic nitrogen-fixing bacterium isolated from the rhizosphere, rhizoplane, and internal tissues of sugarcane and corn plants in different geographical regions. Other plant-growth-promoting abilities, such as phosphate solubilization and antifungal activity, have also been reported for this bacterium. With an aim at investigating the potential use of P. tropica as an inoculant for improving the performance of wheat crop, in this work we evaluated an experimental inoculant formulated with P. tropica MTo-293 with respect to root colonization, the practical aspects of its application, and the effects under field conditions when applied to wheat seeds. Bacterial colonization was monitored by culture dependent techniques and the wheat yield determined by quantifying the total grain production in two different seasons. Rhizoplane and endophytic colonization in wheat roots was achieved efficiently (on average, 8 and 4 log colony-forming units/g fresh weight, respectively) even at relatively low concentrations of viable bacteria in the inoculum under controlled conditions. P. tropica was compatible with a widely used fungicide, maintained viability for 48 h once applied to seeds, and was also able to colonize wheat roots efficiently. Furthermore, we were able to formulate an inoculant that maintained bacterial viability for relatively long time periods. Preliminary field assays were realized, and even though the average yields values for the inoculated treatments remained above the uninoculated ones, no significant effects of inoculation were detected with or without fertilization. The correct physiologic behavior of P. tropica suggests the necessity to continue with field experiments under different conditions.

Age-dependent leaf physiology and consequences for crown-scale carbon uptake during the dry season in an Amazon evergreen forest.

Satellite and tower-based metrics of forest-scale photosynthesis generally increase with dry season progression across central Amazônia, but the underlying mechanisms lack consensus. We conducted demographic surveys of leaf age composition, and measured the age dependence of leaf physiology in broadleaf canopy trees of abundant species at a central eastern Amazon site. Using a novel leaf-to-branch scaling approach, we used these data to independently test the much-debated hypothesis - arising from satellite and tower-based observations - that leaf phenology could explain the forest-scale pattern of dry season photosynthesis. Stomatal conductance and biochemical parameters of photosynthesis were higher for recently mature leaves than for old leaves. Most branches had multiple leaf age categories simultaneously present, and the number of recently mature leaves increased as the dry season progressed because old leaves were exchanged for new leaves. These findings provide the first direct field evidence that branch-scale photosynthetic capacity increases during the dry season, with a magnitude consistent with increases in ecosystem-scale photosynthetic capacity derived from flux towers. Interactions between leaf age-dependent physiology and shifting leaf age-demographic composition are sufficient to explain the dry season photosynthetic capacity pattern at this site, and should be considered in vegetation models of tropical evergreen forests.

Compromiso de la calidad de vida de mujeres con cáncer de mama sometidas a quimioterapia en la atención pública y privada / Comprometimento da qualidade de vida de mulheres com câncer de mama submetidas a quimioterapia no atendimento público e privado / Impact on the quality of life of women with breast cancer undergoing chemotherapy in public and private care

Objective. To compare the general quality of life of women with breast cancer undergoing chemotherapy in a public and a private institution. Methods. Longitudinal observational study including 115 women with breast cancer in an outpatient chemotherapy treatment at two health institutions, one public and one private, in the city of Curitiba (Brazil). The Quality of Life Questionnaire-C30 and the Quality of Life Questionnaire - Breast Cancer Module instruments were applied at three moments of treatment (onset, 40-50 days, and 85-95 days after initiation). Results. Women's global health status was affected in both groups since the first phase of chemotherapy (76.2 points in the private institution and 74.6 points in the public institution, considering 100 points = maximum health). In both groups there was worsening of quality of life over time, which was lower in women in the private institution (second phase = 75.0 and third phase = 74; p=0.47), compared to those in the public institution (second phase = 71.5 and third phase 69.1; p=0.02). Regarding the type of institution, the most committed functions were the emotional and social in the private, and physical and pain in the public. Conclusion. The global quality of life of women with breast cancer deteriorated as a result of chemotherapy in both institutions, and it was lower in those receiving private care. Nursing should consider the type of institution responsible for women's care in order to provide comprehensive care that considers the functions affected at each phase of treatment.(AU)

Compromiso de la calidad de vida de mujeres con cáncer de mama sometidas a quimioterapia en la atención pública y privada Objetivo. Comparar la calidad de vida general de mujeres con cáncer de mama sometidas a quimioterapia en una institución pública y otra privada. Métodos. Estudio observacional longitudinal en el que participaron 115 mujeres con cáncer de mama en tratamiento ambulatorio de quimioterapia en dos instituciones de salud, una pública y una privada, de la ciudad de Curitiba (Brasil). Los instrumentos Quality of Life Questionnaire-C30 y Quality of Life Questionnaire - Breast Cancer Module se aplicaron en tres momentos del tratamiento (inicio, 40-50 días y 85-95 días post-inicio). Resultados. La calidad de vida global de las mujeres ya estaba afectada en ambos grupos desde la primera etapa de la quimioterapia (76.2 puntos en la privada y 74.6 puntos en la pública, siendo 100 puntos el equivalente de máxima salud). También se pudo apreciar que, aunque en ambos grupos hubo empeoramiento de la calidad de vida con el tiempo, este fue menor en las mujeres en la atención privada (segunda etapa = 75.0 y tercera etapa = 74; p=0.47), comparadas con las que recibieron atención pública (segunda etapa = 71.5 y tercera etapa 69.1; p=0.02). Según tipo de institución, las funciones más comprometidas fueron la emocional y la social en la privada, y la física y el dolor en la pública. Conclusión. La calidad de vida global de las mujeres con cáncer de mama se deterioró como consecuencia de la quimioterapia en las dos instituciones, siendo menor en las que recibieron atención privada. Enfermería debe también considerar el tipo de institución responsable de la atención de la mujer, con el fin de brindar un cuidado integral que tenga en cuenta las funciones afectadas en cada fase da tratamiento.(AU)

Objetivo. Comparar a qualidade de vida geral de mulheres com câncer de mama submetidas a quimioterapia em uma instituição pública e outra privada. Métodos. Estudo observacional, longitudinal, em que participaram 115 mulheres com câncer de mama em tratamento ambulatorial de quimioterapia em duas instituições de saúde, uma pública e uma privada, na cidade de Curitiba (Brasil). Os instrumentos Quality of Life Questionnaire-C30 e Quality of Life Questionnaire ­ Breast Cancer Module foram aplicados em três momentos do tratamento (início, 40-50 dias e 85-95 dias após o início). Resultados. A qualidade de vida global das mulheres foi afetada em ambos os grupos desde a primeira fase da quimioterapia (76.2 pontos na privada e 74.6 pontos na pública, sendo 100 pontos o equivalente ao máximo de saúde). Também foi possível observar em ambos os grupos que houve piora na qualidade de vida ao longo do tempo, esta foi menor nas mulheres em atendimento privado (segunda etapa = 75.0 e terceira etapa = 74; p=0.47), comparadas com aquelas que receberam atenção pública (segunda etapa = 71.5 e terceira etapa 69.1; p=0.02). De acordo com o tipo de instituição, as funções mais comprometidas foram a emocional e a social na privada, e física e a dor na pública. Conclusão. A qualidade de vida global das mulheres com câncer de mama deteriorou-se em consequência da quimioterapia nas duas instituições, sendo esta menor naquelas que recebem atenção privada. A enfermagem deve considerar o tipo de instituição responsável pelo atendimento das mulheres, a fim de fornecer um atendimento integral que leve em consideração as funções afetadas em cada fase do tratamento.(AU)

Characterization and application of the enzyme peroxidase to the degradation of the mycotoxin DON.

Deoxynivalenol (DON), one of the main mycotoxins found in food matrices, has high level of toxicity. This study aimed to characterize the peroxidase enzyme extracted from rice bran to be applied to the biodegradation of DON in order to evaluate the potential peroxidase (PO) from rice bran (RB) has to degrade DON in optimal conditions. Purification and recovery factors of PO extracted from RB and purified by three-phase partitioning were 5.7% and 50%, respectively. PO had the highest level of activity in the phosphate buffer 5 mM pH 5.5 in both crude and purified forms, whose reaction temperatures were 25°C and 10°C. At the end of production, purification and characterization steps, specific activities of the bran were 115.79 U mg-1 and 4363 U g-1. Reduction in the mycotoxin DON in optimal conditions determined for PO from RB was 20.3%, a promising result when the aim is to adequate mycotoxicological levels to foods.

Changes in social function and body image in women diagnosed with breast cancer undergoing chemotherapy / Alterações na função social e imagem corporal de mulheres com câncer de mama em quimioterapia

The objective of this study was to investigate the impairment of social and emotional functions, body image and future perspective in women with breast cancer undergoing chemotherapeutic treatment. This is a longitudinal research conducted from October 2012 to October 2013 at the chemotherapy unit of a private institution of Oncology located in Curitiba, PR, Brazil. Sociodemographic and clinical questionnaires were applied, Quality of Life Questionnaire Core 30 e Quality of Life Questionnaire ­ Breast Cancer Module, to 48 women subjected for the first time to chemotherapy, in three different stages of the treatment. Analysis with Friedman`s, Spearman and Kruskal -Wallis nonparametric tests was performed. Changes were observed in social function and body image, which compromised quality of life significantly. Results can subsidize the planning of and adjustments to the care provided to these women by considering the perception about the impact of therapy on QL and their perspectives.

O objetivo deste estudo foi investigar o comprometimento da função social, emocional, imagem corporal e perspectiva futura de mulheres com câncer de mama submetidas ao tratamento quimioterápico. Pesquisa longitudinal, realizada em Outubro de 2012 a Outubro de 2013, na unidade de quimioterapia de instituição privada de Oncologia situada em Curitiba-PR, Brasil. Aplicaram-se questionários sociodemográfico e clínico, Quality of Life Questionnaire Core 30 e Quality of Life Questionnaire ­ Breast Cancer Module a 48 mulheres submetidas pela primeira vez à quimioterapia em três etapas diferentes do tratamento. Realizou-se análise com testes não paramétricos de Friedman, Spearman e Kruskal-Wallis. Alterações foram percebidas na função social e imagem corporal que comprometeram significativamente a qualidade de vida. Os resultados podem subsidiar o planejamento e ajustes no cuidado a essas mulheres ao considerar a percepção do impacto da terapêutica na QV nas suas perspectivas.

Qualidade de vida de mulheres com neoplasia mamária em tratamento quimioterápico / Calidad de vida de mujeres con neoplasia mamária en tratamiento quimioterápico / Quality of life of women with breast cancer receiving chemotherapeutic treatment

Objetivos investigar a qualidade de vida de mulheres com neoplasia mamária em tratamento quimioterápico ambulatorial. Método estudo analítico, longitudinal com 48 mulheres com neoplasia mamária. A coleta de dados ocorreu em três etapas, com os Quality of Life Questionnaires - Core 30 e Breast Cancer. Foram utilizados os testes estatísticos de Friedman, Diferença Mínima Significativa, Spearman e Kruskal-Wallis; valores p<0,05 foram considerados significativos. Resultados as funções física e social, a fadiga, náuseas e vômitos, a imagem corporal e os efeitos sistêmicos apresentaram resultados estatisticamente significantes durante a terapêutica, assim como a associação entre as variáveis idade e função física, e escolaridade e imagem corporal. Conclusão a qualidade de vida das mulheres com neoplasia mamária foi comprometida em decorrência do tratamento quimioterápico ambulatorial.

Objetivos investigar la calidad de vida de mujeres con neoplasia mamária en tratamiento quimioterápico ambulatorial. Método estudio analítico, longitudinal con 48 mujeres con neoplasia mamária. La recolección de datos fue en tres etapas, con los Quality of Life Questionnaires - Core 30 y Breast Cancer. Fueron utilizados los testes estadísticos de Friedman, Diferencia Mínima Significativa, Spearman y Kruskal-Wallis; valores p<0,05 fueron considerados significativos. Resultados las funciones física y social, la fatiga, náuseas y vómitos, la imágen corporal y los efectos sistémicos presentaron resultados estadísticamente significantivos durante la terapéutica, así como la asociación entre las variables edad y función física, y escolaridad e imágen corporal. Conclusión la calidad de vida de las mujeres con neoplasia mamária fue comprometida en decurrencia del tratamiento quimioterápico ambulatorial.

Objectives to investigate the quality of life of women with breast cancer receiving outpatient chemotherapy. Method longitudinal, analytical study with 48 women with mammary neoplasms. Data collection took place in three stages. The Quality of Life Questionnaire - Core 30 and Quality of Life Questionnaire - Breast Cancer were used. The Friedman test, the Least Significant Difference, Spearman coefficient and the Kruskal-Wallis test were used in the analyses; p values < 0.05 were considered significant. Results physical and social functions, fatigue, nausea and vomiting, body image and systemic effects showed statistically significant results during therapy, as well as the association between the variables age and physical function, and schooling and body image. Conclusion the quality of life of women with breast cancer was compromised as a result of outpatient chemotherapy.

Plant Growth Promotion Activity of Keratinolytic Fungi Growing on a Recalcitrant Waste Known as "Hair Waste".

Purpureocillium lilacinum (Thom) Samsom is one of the most studied fungi in the control of plant parasitic nematodes. However, there is not specific information on its ability to inhibit some pathogenic bacteria, fungi, or yeast. This work reports the production of several antifungal hydrolytic enzymes by a strain of P. lilacinum when it is grown in a medium containing hair waste. The growth of several plant-pathogenic fungi, Alternaria alternata, Aspergillus niger, and Fusarium culmorum, was considerably affected by the presence of P. lilacinum's supernatant. Besides antifungal activity, P. lilacinum demonstrates the capability to produce indoleacetic acid and ammonia during time cultivation on hair waste medium. Plant growth-promoting activity by cell-free supernatant was evidenced through the increase of the percentage of tomato seed germination from 71 to 85% after 48 hours. A 21-day plant growth assay using tomato plants indicates that crude supernatant promotes the growth of the plants similar to a reference fertilizer (p > 0.05). These results suggest that both strain and the supernatant may have potential to be considered as a potent biocontrol agent with multiple plant growth-promoting properties. To our knowledge, this is the first report on the antifungal, IAA production and tomato growth enhancing compounds produced by P. lilacinum LPSC #876.

[Quality of life domains affected in women with breast cancer]. / Os domínios afetados na qualidade de vida de mulheres com neoplasia mamária.

OBJECTIVE: This study aimed to investigate the quality of life of women suffering from breast cancer undergoing chemotherapy in public and private health care systems. METHOD: It is an observational, prospective study with 64 women suffering from breast cancer. Data was collected with two instruments: Quality of Life Questionnaire C30 and Breast Cancer Module BR23. By applying Mann Whitney and Friedman's statistical tests, p values < 0.05 were considered statistically significant. RESULTS: The significant results in public health care systems were: physical functions, pain symptom, body image, systemic effects and outlook for the future. In private health care systems, the results were sexual, social functions and body image. Women's quality of life was harmed by chemotherapy in both institutions. CONCLUSION: The quality of life of women has been harmed as a result of the chemotherapy treatment in both institutions, but in different domains, indicating the type of nursing care that should be provided according to the characteristics of each group.

Quality of life domains affected in women with breast cancer / Los dominios afectados en la calidad de vida de mujeres con neoplasia mamaria / Os domínios afetados na qualidade de vida de mulheres com neoplasia mamária

OBJECTIVE: This study aimed to investigate the quality of life of women suffering from breast cancer undergoing chemotherapy in public and private health care systems. METHOD: It is an observational, prospective study with 64 women suffering from breast cancer. Data was collected with two instruments: Quality of Life Questionnaire C30 and Breast Cancer Module BR23. By applying Mann Whitney and Friedman's statistical tests, p values < 0.05 were considered statistically significant. RESULTS: The significant results in public health care systems were: physical functions, pain symptom, body image, systemic effects and outlook for the future. In private health care systems, the results were sexual, social functions and body image. Women's quality of life was harmed by chemotherapy in both institutions. CONCLUSION: The quality of life of women has been harmed as a result of the chemotherapy treatment in both institutions, but in different domains, indicating the type of nursing care that should be provided according to the characteristics of each group. .

OBJETIVO: Se objetivó investigar la calidad de vida de las mujeres con neoplasia mamaria sometidas a quimioterapia, en el seguro médico público y privado. MÉTODO: Se trata de un estudio observacional, de cohorte, prospectivo, realizado con 64 mujeres con neoplasia mamaria. Los datos fueron recolectados mediante dos instrumentos Quality of Life Questionnaire C30 y Breast Cancer Module BR23. Para el análisis los datos se utilizaron pruebas estadísticas de Mann Whitney y Friedman, con valores estadísticamente significativas para p <005. RESULTADOS: Fueron verificadas diferencias estadísticamente significativas en el seguro médico público: la función física, síntoma dolor, la imagen corporal, los efectos sistémicos en las perspectivas de futuro, en el seguro médico privado fueron la función sexual, la imagen social y el cuerpo. CONCLUSIÓN: La calidad de vida de las mujeres se ha visto comprometida como consecuencia de la quimioterapia en ambas instituciones, pero en diferentes dominios que subsidia la atención de enfermería dirigida según las características de cada grupo. .

OBJETIVO: O objetivo deste estudo foi investigar a qualidade de vida das mulheres com neoplasia mamária submetidas à quimioterapia nos convênios público e privado. MÉTODO: Trata-se de estudo observacional, de coorte prospectivo, realizado com 64 mulheres portadoras de neoplasia mamária. Os dados foram coletados com a utilização dos instrumentos Quality of Life Questionnaire C30 e Breast Cancer Module BR23. Para análise dos dados, foram utilizados os testes estatísticos de Mann Whitney e Friedman, com valores estatisticamente significantes para p<005. RESULTADOS: Os resultados significantes no convênio público foram: função física, dor, imagem corporal, efeitos sistêmicos e perspectivas futuras. No convênio privado, foram: função sexual, social e imagem corporal. CONCLUSÃO: A qualidade de vida das mulheres foi comprometida em decorrência do tratamento quimioterápico em ambas as instituições, porém em domínios diferentes, o que subsidia um cuidado de enfermagem direcionado de acordo com as características de cada grupo. .