RESUMO
Objetivou-se avaliar a seletividade da molécula sulfentrazone em pós-emergência na cultura do girassol. O experimento foi conduzido no ano de 2014 em Campo Novo do Parecis. O delineamento foi em blocos casualizados com nove tratamentos e quatro repetições. Os tratamentos foram constituídos de sete doses de sulfentrazone (50, 62,5, 75, 87,5, 100, 112,5 e 125 g i.a ha-1) e uma testemunha com capina manual. A aplicação do herbicida foi realizada com pulverizador costal pressurizado a CO2 e equipado com barra de aplicação contendo cinco pontas do modelo TeeJet XR 110 02VS, com volume de aplicação de 200 L ha-1. Foi avaliada a fitotoxicidade (%), altura do capítulo, diâmetro da haste, massa do capítulo, massa de aquênios por capítulo, produtividade e massa de mil aquênios. Houve redução na altura do capítulo nas doses de 112,5 e 125g i.a ha-1, enquanto que nas demais variáveis não foram observadas diferenças significativas. Até os 14 dias após a aplicação (DAA) foram observadas algumas injúrias. A produtividade não foi afetada pelas doses de sulfentrazone. Que se mostraram seletivas à cultura do girassol.
The objective of this study was to evaluate the selectivity of the post emergent sulfentrazone molecule in sunflower crop. The experiment was conducted in 2014 in Campo Novo do Parecis. The design was in randomized blocks with nine treatments and four replications. Treatments consisted of seven doses of sulfentrazone (50, 62.5, 75, 87.5, 100, 112.5 and 125 g i.a ha-1) and a control with weeding. The herbicide application was carried out with a CO2pressurized costal sprayer and equipped with an application bar containing five TeeJet XR 110 02 VS tips, with an application volume of 200 L ha-1. Phytotoxicity (%), chapter height, stem diameter, chapter mass, achenes mass per chapter, yield and thousand achenes mass were evaluated. There was a reduction in chapter height at 112.5 and 125 g i.a ha-1, while no significant differences were observed in the other variables. Up to 14 days after application (DAA) some injuries were observed. Yield was not affected by sulfentrazone doses. Which proved selective to sunflower crop.
Assuntos
24444 , Helianthus/crescimento & desenvolvimento , Herbicidas , Medidas de ToxicidadeRESUMO
Objetivou-se avaliar a seletividade da molécula sulfentrazone em pós-emergência na cultura do girassol. O experimento foi conduzido no ano de 2014 em Campo Novo do Parecis. O delineamento foi em blocos casualizados com nove tratamentos e quatro repetições. Os tratamentos foram constituídos de sete doses de sulfentrazone (50, 62,5, 75, 87,5, 100, 112,5 e 125 g i.a ha-1) e uma testemunha com capina manual. A aplicação do herbicida foi realizada com pulverizador costal pressurizado a CO2 e equipado com barra de aplicação contendo cinco pontas do modelo TeeJet XR 110 02VS, com volume de aplicação de 200 L ha-1. Foi avaliada a fitotoxicidade (%), altura do capítulo, diâmetro da haste, massa do capítulo, massa de aquênios por capítulo, produtividade e massa de mil aquênios. Houve redução na altura do capítulo nas doses de 112,5 e 125g i.a ha-1, enquanto que nas demais variáveis não foram observadas diferenças significativas. Até os 14 dias após a aplicação (DAA) foram observadas algumas injúrias. A produtividade não foi afetada pelas doses de sulfentrazone. Que se mostraram seletivas à cultura do girassol.(AU)
The objective of this study was to evaluate the selectivity of the post emergent sulfentrazone molecule in sunflower crop. The experiment was conducted in 2014 in Campo Novo do Parecis. The design was in randomized blocks with nine treatments and four replications. Treatments consisted of seven doses of sulfentrazone (50, 62.5, 75, 87.5, 100, 112.5 and 125 g i.a ha-1) and a control with weeding. The herbicide application was carried out with a CO2pressurized costal sprayer and equipped with an application bar containing five TeeJet XR 110 02 VS tips, with an application volume of 200 L ha-1. Phytotoxicity (%), chapter height, stem diameter, chapter mass, achenes mass per chapter, yield and thousand achenes mass were evaluated. There was a reduction in chapter height at 112.5 and 125 g i.a ha-1, while no significant differences were observed in the other variables. Up to 14 days after application (DAA) some injuries were observed. Yield was not affected by sulfentrazone doses. Which proved selective to sunflower crop.(AU)
Assuntos
Helianthus/crescimento & desenvolvimento , 24444 , Herbicidas , Medidas de ToxicidadeRESUMO
This research investigated the potential of beef products with acid whey to release bioactive peptides and thereby emphasize their health-promoting potential. Peptide sequences were isolated and identified by liquid chromatography-electrospray ionization-mass spectrometry (LC-ESI-MS). Firstly, the antihealth properties (toxicity, allergenicity) of the peptides were estimated based on the peptide sequences. Next, their health-promoting potential was demonstrated based on an in silico analysis by determining their bioactivity scores (PeptideRanker). Their various biological actions were also determined using BIOPEP-UWM tools. We presented peptide sequences with properties relevant to ensuring good health and well-being, including cardiovascular system, nervous and immune systems, or their support for the maintenance of general homeostasis. We obtained information on generation of biologically active peptides in uncured beef with acid whey and it can be considered as a new knowledge as it contributes to science development of functional and nutraceutical foods. In the long term, this information can be used in designing products with desired nutritional and health-promoting properties that are important for the well-being and for preventing the occurrence of noncommunicable diseases.
Assuntos
Alimento Funcional , Alérgenos , Medidas de Toxicidade , Peptídeos , Produtos da Carne/análise , Bovinos , Cromatografia Líquida , Espectrometria de MassasRESUMO
This research investigated the potential of beef products with acid whey to release bioactive peptides and thereby emphasize their health-promoting potential. Peptide sequences were isolated and identified by liquid chromatography-electrospray ionization-mass spectrometry (LC-ESI-MS). Firstly, the antihealth properties (toxicity, allergenicity) of the peptides were estimated based on the peptide sequences. Next, their health-promoting potential was demonstrated based on an in silico analysis by determining their bioactivity scores (PeptideRanker). Their various biological actions were also determined using BIOPEP-UWM tools. We presented peptide sequences with properties relevant to ensuring good health and well-being, including cardiovascular system, nervous and immune systems, or their support for the maintenance of general homeostasis. We obtained information on generation of biologically active peptides in uncured beef with acid whey and it can be considered as a new knowledge as it contributes to science development of functional and nutraceutical foods. In the long term, this information can be used in designing products with desired nutritional and health-promoting properties that are important for the well-being and for preventing the occurrence of noncommunicable diseases.(AU)
Assuntos
Produtos da Carne/análise , Peptídeos , Medidas de Toxicidade , Alérgenos , Alimento Funcional , Bovinos , Cromatografia Líquida , Espectrometria de MassasRESUMO
The aim of this study was to identify plants used in traditional medicine, as well as those with toxic potential in the neighborhoods of Simões Lopes, Padre Réus and Porto in the city of Pelotas. For a year there were interviewed 111 owners of animals treated at the Veterinary Clinic-Universidade Federal de Pelotas, in order to assess the knowledge, cultivation, use and form of obtaining medicinal plants, age and sex of people, number of animals and results of the use of plants in the animals. After initial investigation, visits were held in the community aiming to shoot and collect samples of plants for botanical identification. They were listed 74 plants for medicinal purposes, mainly from Asteraceae and Lamiaceae families, minimally used in animals. The main indications of use were for digestive and integumentary system, followed by musculoskeletal and respiratory, by infusion and decoction. Most of the interviewers were unaware of the adverse effects of inappropriate use of medicinal plants, and different species were known with the same common name, so they could result in toxicity, wrong dosages and unknown actions. There was a predominance of cultivation and use of medicinal plants in people with an average age of 41.2 years who obtained knowledge mainly from parents and grandparents. The toxic potential plants found were from Araceae, Euphorbiaceae and Araliaceae families, in a total of 20 species, but only six were cited as toxic by the interviewees. There was noticed the existence and use of many medicinal plants and presence of potentially toxic species in the region; so it is essential to evidence scientifically possible benefits and risks of administration in animals.(AU)
O objetivo deste trabalho foi identificar plantas utilizadas como medicinais e aquelas com potencial tóxico localizadas no bairro Simões Lopes, Padre Réus e Porto em Pelotas-RS. Durante um ano foram entrevistados 111 proprietários de animais atendidos no Ambulatório Veterinário-Universidade Federal de Pelotas, com o propósito de avaliar o conhecimento, cultivo, utilização e forma de obtenção das plantas medicinais, faixa etária e o sexo das pessoas, número de animais nas residências e resultados do uso de plantas nos animais. Após investigação inicial, realizaram-se visitas na comunidade com intuito de fotografar e coletar amostras das plantas para identificação botânica. Foram listadas 74 plantas com fins medicinais, principalmente das famílias Asteraceae e Lamiaceae, usadas em minoria nos animais. As principais indicações de uso foram para o sistema digestório e tegumentar, seguido do musculoesquelético e respiratório, sob forma de infusão e decocto. Grande parte dos entrevistados desconhecia os efeitos adversos do uso inadequado de plantas medicinais, e espécies diferentes eram conhecidas com o mesmo nome popular, podendo resultar em toxicidade, dosagens errôneas e ações desconhecidas. Em relação ao cultivo e utilização das plantas medicinais, predominava em pessoas com idade média de 41,2 anos, que obtiveram o conhecimento principalmente de pais e avós. As plantas com potencial tóxico encontradas pertenciam às famílias Araceae, Euphorbiaceae e Araliaceae, totalizando 20 espécies; porém, apenas seis foram citadas como tóxicas pelos entrevistados. Assim, observou-se a existência e uso de muitas plantas medicinais, além da presença de espécies potencialmente tóxicas na região, sendo imprescindível ressaltar, com embasamento científico,possíveis benefícios e riscos da administração em animais.(AU)
Assuntos
Plantas Medicinais , Plantas Tóxicas , Fitoterapia/veterinária , Medidas de Toxicidade , /diagnósticoRESUMO
El consumo de cocaína continúa siendo un problema social importante por las consecuencias agudas y crónicas asociadas a su consumo. La cardiotoxicidad asociada al consumo de cocaína es una de las consecuencias más estudiadas; sin embargo, este alcaloide también se asocia con complicaciones neurológicas. En el presente reporte describimos el caso de una mujer de 32 años quien desarrolla una crisis convulsiva secundaria a la ingesta oral de cocaína. Se hace una revisión de los aspectos toxicocinéticos y toxicodinámicos de la cocaína, así como la fisiopatología de esta complicación.
Cocaine remains a major social problem for the consequences associated with its acute and chronic consumption. Cardiotoxical consequences associated with cocaine use is mostly studied, however, this alkaloid is also associated with neurological complications. In this report we describe the case of a 32 year old woman who developed a convulsive status secondary to cocaine ingestion. Also we review the toxicokinetic and toxicodynamic aspects of cocaine, as well as the pathophysiology of this complication.
Assuntos
Humanos , Cocaína , Convulsões , Medidas de ToxicidadeRESUMO
La procaína es el fármaco para la realización de la terapia neural. Su perfil de seguridad ha sido descrito para su uso como anestésico local, sin embargo, la literatura revisada no aporta información suficiente para su uso como neural terapéutico. El objetivo del presente trabajo es contribuir con el conocimiento sobre las bases teóricas de la Terapia Neural, mediante la evaluación de la toxicidad de la Procaína en roedores, según el esquema de uso como neural terapéutico. Se realizó un estudio de experimentación animal para evaluar la neurotoxicidad de la Procaína en administración repetida por vía intradérmica. El comportamiento animal se observó una hora después de cada aplicación y durante el mes siguiente, mediante una batería de pruebas observacionales para evaluar signos clínicos de neurotoxicidad. En ninguna de las pruebas aplicadas se observaron cambios sugestivos de neurotoxicidad, con lo que se puede concluir que la Procaína es segura al ser administrada en dosis bajas por vía intradérmica, teniendo en cuenta que hacen falta estudios para establecer el perfil completo de la Procaína como neural terapéutico.
Assuntos
Animais , Camundongos , Procaína/toxicidade , Terapias Complementares , Modelos Animais , Medidas de ToxicidadeRESUMO
The effects of biomass of Phanerochaete chrysosporium at various concentrations (1; 2.5; 5; 10; 25; 50; 75 and 100 percent) on the growth of Drosophila melanogaster have been investigated. Biomass was used as a protein source instead of corn flour in Standard Drosophila Medium (SDM). It was seen that it causes increments in both body size of larvae and the numbers of offsprings, specially at higher concentrations (50, 75 and 100 percent) at the application of 100 percent concentration, metamorphosis accelerated and was completed one day before the control. There were phenotypic abnormalities in both control (0.64 percent) and applications with low concentrations (0.02-0.19 percent), while they were not observed at the application of 100 percent concentration.
Assuntos
Biomassa , Drosophila , Técnicas In Vitro , Phanerochaete , Medidas de Toxicidade , Meios de Cultura , MétodosRESUMO
To investigate the levels and atmospheric transport of mercury, and to investigate the emission and transfomiation of atmospheric mercury in source regions, the university of Michigan Air Quality Laboratory (UMAQL) has initiated several studies in the Great Lakes region. Reported here are results from sampling campaigns in two urban areas, Detroit, MI and Chicago, IL, several rural locations in Michigan, as well as over-water measurements on Lake Michigan aboard the research vessel Laurentian. Vapor- and particulate-phase Hg samples were collected, along with atmospheric acids and other trace elements, to investigate the urban/industrial sources of atmospheric mercury. We describe here our initial results fromm the ambient sampling and present our early results from precipitation Fig sampling across lhe state of Michigan. this paper will focus on the results of our multi-site amospspheric mercury measurements in rural and urban areas. We wiil highlight the finding that Hg levels in urban areas are significantly elevated over those measured concurrently in rural areas. Vapor phase Hg levels were on lhe average 4 times higher (8.7 ng/m3 vs. 2.0 ng/m3) in Chicago than in South Haven, MI Furthermore, a diurnal pattern was observed in the vapor-phase Hg levels measured at the Chicago site. The average concentration (ng/m3) for AM (8am to 2pm) sampies was 3.3 times greater ihan lhe NIGHT (8 pm to 8 am) samples and lhe average conceniration for PM (2 pm lo 8 pm) sampies was 3.3 times greater than lhe NiGHT (8am to 2pm) samples was 3.3 times greater than the nigth(8 am to 8am)samples and the average concentration for Pm(2pm to 8pm)samples was 2.1 greater than the NIGHT samples(average of NIGHT samples,3.7ng/m3)...