24 research outputs found

    Antioxidant potential and modulatory effects of restructured lipids from the amazonian palms on liver cells

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    Enzymatic interesterification is used to manipulate oil and fat in order to obtain improved restructured lipids with desired technological properties. However, with raw materials containing significant amounts of bioactive compounds, the influence of this enzymatic process on the bioactivity of the final product is still not clear. Thus, the aim of this study is to evaluate the antioxidant potential and modulatory effects of two raw materials from the Amazonian area, buriti oil and murumuru fat, before and after lipase interesterification, on human hepatoma cells (HepG2). The results indicate that minor bioactive compounds naturally found in the raw materials and their antioxidant capacity are preserved after enzymatic interesterification, and that the restructured lipids modulate HepG2 endogenous antioxidant enzyme554553561CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQCOORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIOR - CAPESFUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESP2012- -22774-5; 2012-22829-4Sem informaçãoSem informaçã

    Antioxidant Potential and Modulatory Effects of Restructured Lipids from the Amazonian Palms on Liver Cells

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    Enzimska interesterifikacija koristi se za obradu ulja i masti radi dobivanja restrukturiranih lipida sa željenim tehnološkim svojstvima. Međutim, s obzirom na to da sirovi materijali sadržavaju velike udjele bioaktivnih tvari, još uvijek je nejasan utjecaj ovakvih enzimskih procesa na biološku aktivnost konačnog produkta. Stoga je svrha ovog istraživanja bila procijeniti antioksidacijski potencijal i modulacijski učinak dvaju sirovih materijala iz područja Amazone (buriti ulja i murumuru masti) na stanice jetre (HepG2), i to prije i nakon procesa interesterifikacije. Istraživanje je pokazalo da su neke bioaktivne komponente sirovih materijala i njihov antioksidacijski učinak očuvani nakon enzimske esterifikacije restrukturiranih lipida, pri čemu dolazi do modulacije HepG2 endogenog antioksidacijskog enzima.Enzymatic interesterification is used to manipulate oil and fat in order to obtain improved restructured lipids with desired technological properties. However, with raw materials containing significant amounts of bioactive compounds, the influence of this enzymatic process on the bioactivity of the final product is still not clear. Thus, the aim of this study is to evaluate the antioxidant potential and modulatory effects of two raw materials from the Amazonian area, buriti oil and murumuru fat, before and after lipase interesterification, on human hepatoma cells (HepG2). The results indicate that minor bioactive compounds naturally found in the raw materials and their antioxidant capacity are preserved after enzymatic interesterification, and that the restructured lipids modulate HepG2 endogenous antioxidant enzyme

    Task force for the diagnosis of thrombotic microangiopathy / Força-tarefa para o diagnóstico de microangiopatia trombótica

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    Background: Thrombotic microangiopathy triggers microangiopathic hemolytic anemia, thrombocytopenia, and organic injuries. It is a rare and serious condition that demands specific approaches and strategies to recognize it promptly, especially in critically ill patients. The task force could be an effective model. Methods: An evaluative study of the impact of a task force in establishing a routine for the diagnosis of TMA in ICUs. A standard flowchart was used for 90 consecutive days and a low platelet count was the driver for the collection of epidemiological and laboratory data. Suspicion of typical HUS was proven after analyzing haptoglobin, LDH, creatinine, ADAMTS-13 enzyme, and Shiga toxin levels.  Meetings were also held with ICU personnel and the self-explanatory flowchart was fine tuned. Results: There were 490 patients (55.9% male and 44.1% female) aged 59.5 ± 21.13 years. Forty-two percent of patients in the sample had thrombocytopenia. Out of the 42 patients, five (1.02%) had TTP, three (0.6%) were presumed to have atypical HUS, and none had typical HUS. The task force remained in touch with researchers to assess diagnoses and three other suspected cases of atypical HUS underwent specific treatment.Discussion: Only 1.62% of the sampled patients had TMA. Despite its complexity, the task force model is useful in situations in which higher technology is the norm.  Conclusion: The use of a task force has proven to be effective in establishing a diagnostic practice for a health condition deemed rare or exceedingly rare

    Amitraz: pharmacological and toxicological aspects in animals

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    Infestations by ectoparasites are one of the greatest problems in the veterinary practice, due to a large drop in performance in cattle herds and other farm animals, generating great economical losses; for pets, besides the low quality of life and disruption of homeostasis, ectoparasites represent a risk for transmission of zoonotic diseases. The formamidines emerge as a very large group of ectoparasiticides, which its main representative, amitraz, is the only one approved for animal use. Amitraz is indicated for animal use against mites, lice, and ticks for cattle, swine, and sheep. For dogs, it is used against ticks and mites. However, due to a lack of proper orientation and information, reports of accidental intoxications by amitraz, in both animals and humans, are not unusual in the literature. Amitraz intoxication has been reported in dogs, and the clinical signs are evidenced in the nervous, digestive, cardiovascular, and urinary systems and include sedation, bradycardia, bradyarrhythmias, hypotension, bradypnea, transitory hyperglycemia, mydryasis, and hypothermia, cats being more sensitive than dogs regarding these last signs. To detect amitraz and its main metabolites, there are many standardized methodologies. This review describes the pharmacokinetics, pharmacodinamics, indications, toxicological and pathological effects of amitraz, as well as the intoxication treatment and the aspects related to its detection in biological matrices

    Inspiratory Muscular Training devices in older people with weaning of mechanical ventilation and with tracheostomy

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    Objetivo: investigar os efeitos de dois dispositivos de treino muscular inspiratório em idosos com desmame prolongado da ventilação mecânica invasiva e com traqueostomia. Materiais e Métodos: O estudo foi realizado com 12 idosos em desmame prolongado da ventilação mecânica e traqueostomia, nas Unidades de Terapia Intensiva do Hospital das Clínicas da Universidade Estadual de Campinas (UNICAMP). Seis idosos foram submetidos ao uso do dispositivo Powerbreathe plus medic® (PPM), e seis idosos ao Powerbreathe K5® (PK5). Foram avaliados os seguintes parâmetros respiratórios antes e depois da intervenção: índice de respiração rápida e superficial (IRRS) e pressão inspiratória máxima (PImáx). A análise dos dados foi conduzida por meio da estatística descritiva e inferencial (p<0,05). Resultados: os resultados evidenciaram diferença significativa na PImáx (p = 0,014), onde média do grupo PPM foi superior a do grupo PK5. Houve efeito do tempo (F = 7,756) no IRRS, com variações negativas após o período de intervenção no grupo PK5. Foi encontrado efeito do grupo (F = 8,394) e do tempo (F = 8,141) na PImáx, sugerindo que os grupos eram diferentes e que apresentaram variação positiva ao longo do tempo. Houve efeito do tempo (F = 43,808) e da interação (F = 12,020) na carga de treinamento, indicando maior incremento de carga no grupo PPM, com tamanho do efeito grande (d=1,261). Conclusão: Concluiu-se que o PK5 se mostrou mais efetivo para a melhora do IRRS, PImáx e frequência respiratória.Objective: to investigate the effects of two inspiratory muscle training devices in the elderly with prolonged weaning from invasive mechanical ventilation and with tracheostomy. Materials and Methods: The study was carried out with 12 elderly people on prolonged weaning from mechanical ventilation and tracheostomy, in the Intensive Care Units of Hospital das Clínicas, Universidade Estadual de Campinas (UNICAMP). Six elderly people underwent the use of the Powerbreathe plus medic® (PPM) device, and six elderly people under the Powerbreathe K5® (PK5). The following respiratory parameters were evaluated before and after the intervention: rapid and shallow breathing index (RSRI) and maximum inspiratory pressure (MIP). Data analysis was conducted using descriptive and inferential statistics (p <0.05). Results: the results showed a significant difference in MIP (p = 0.014), where the mean of the PPM group was higher than that of the PK5 group. There was an effect of time (F = 7.756) on IRRS, with negative variations after the intervention period in the PK5 group. The effect of the group (F = 8.394) and time (F = 8.141) on MIP was found, suggesting that the groups were different and that they presented positive variation over time. There was an effect of time (F = 43.808) and interaction (F = 12.020) on the training load, indicating greater load increase in the PPM group, with a large effect size (d = 1.261). Conclusion: It was concluded that PK5 was shown to be more effective in improving IRRS, MIP and respiratory rate

    Evaluating the effect of Bolsa Familia, Brazil's conditional cash transfer programme, on maternal and child health: A study protocol.

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    BACKGROUND: Conditional Cash Transfer Programs have been developed in Latin America in response to poverty and marked social inequalities on the continent. In Brazil, the Bolsa Familia Program (BFP) was implemented to alleviate poverty and improve living conditions, health, and education for socioeconomically vulnerable populations. However, the effect of this intervention on maternal and child health is not well understood. METHODS: We will evaluate the effect of BFP on maternal and child outcomes: 1. Birth weight; 2. Preterm birth; 3. Maternal mortality; and 4. Child growth. Dynamic retrospective cohort data from the 100 Million Brazilian Cohort (2001 to 2015) will be linked to three different databases: Live Birth Information System (2004 to 2015); Mortality Information System (2011 to 2015); and Food and Nutritional Surveillance System (2008 to 2017). The definition of exposure to the BFP varies according to the outcome studied. Those who never received the benefit until the outcome or until the end of the follow-up will be defined as not exposed. The effects of BFP on maternal and child outcomes will be estimated by a combination of propensity score-based methods and weighted logistic regressions. The analyses will be further stratified to reflect changes in the benefit entitlement before and after 2012. DISCUSSION: Harnessing a large linked administrative cohort allows us to assess the effect of the BFP on maternal and child health, while considering a wide range of explanatory and confounding variables

    Educomunicação, Transformação Social e Desenvolvimento Sustentável

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    Esta publicação apresenta os principais trabalhos dos GTs do II Congresso Internacional de Comunicação e Educação nos temas&nbsp;Transformação social, com os artigos que abordam principalmente Educomunicação e/ou Mídia-Educação, no contexto de políticas de diversidade, inclusão e equidade; e, em Desenvolvimento Sustentável&nbsp;os artigos que abordam os avanços da relação comunicação/educação no contexto da educação ambiental e desenvolvimento sustentável

    The complete genome sequence of Chromobacterium violaceum reveals remarkable and exploitable bacterial adaptability

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    Chromobacterium violaceum is one of millions of species of free-living microorganisms that populate the soil and water in the extant areas of tropical biodiversity around the world. Its complete genome sequence reveals (i) extensive alternative pathways for energy generation, (ii) ≈500 ORFs for transport-related proteins, (iii) complex and extensive systems for stress adaptation and motility, and (iv) wide-spread utilization of quorum sensing for control of inducible systems, all of which underpin the versatility and adaptability of the organism. The genome also contains extensive but incomplete arrays of ORFs coding for proteins associated with mammalian pathogenicity, possibly involved in the occasional but often fatal cases of human C. violaceum infection. There is, in addition, a series of previously unknown but important enzymes and secondary metabolites including paraquat-inducible proteins, drug and heavy-metal-resistance proteins, multiple chitinases, and proteins for the detoxification of xenobiotics that may have biotechnological applications

    Relationships between episodic memory performance prediction and sociodemographic variables among healthy older adults

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    Previous studies have suggested that performance prediction, an aspect of metamemory, may be associated with objective performance on memory tasks. OBJECTIVE: The objective of the study was to describe memory prediction before performing an episodic memory task, in community-dwelling older adults, stratified by sex, age group and educational level. Additionally, the association between predicted and objective performance on a memory task was investigated. METHODS: The study was based on data from 359 participants in the FIBRA study carried out at Ermelino Matarazzo, S&#227;o Paulo. Memory prediction was assessed by posing the question: "If someone showed you a sheet with drawings of 10 pictures to observe for 30 seconds, how many pictures do you think you could remember without seeing the sheet?". Memory performance was assessed by the memorization of 10 black and white pictures from the Brief Cognitive Screening Battery (BCSB). RESULTS: No differences were found between men and women, nor for age group and educational level, in memory performance prediction before carrying out the memory task. There was a modest association (rho=0.11, p=0.041) between memory prediction and performance in immediate memory. On multivariate linear regression analyses, memory performance prediction was moderately significantly associated with immediate memory (p=0.061). CONCLUSION: In this study, sociodemographic variables did not influence memory prediction, which was only modestly associated with immediate memory on the Brief Cognitive Screening Battery (BCSB)
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