Cellular Respiration
Mostrando 1-12 de 177 artigos, teses e dissertações.
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1. Antioxidants in dermatology
Abstract The skin cells continuously produce, through cellular respiration, metabolic processes or under external aggressions, highly reactive molecules oxidation products, generally called free radicals. These molecules are immediately neutralized by enzymatic and non-enzymatic systems in a physiological and dynamic balance. In situations where this balance
An. Bras. Dermatol.. Publicado em: 2017-06
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2. Symbiont modulates expression of specific gene categories in Angomonas deanei
Trypanosomatids are parasites that cause disease in humans, animals, and plants. Most are non-pathogenic and some harbor a symbiotic bacterium. Endosymbiosis is part of the evolutionary process of vital cell functions such as respiration and photosynthesis. Angomonas deanei is an example of a symbiont-containing trypanosomatid. In this paper, we sought to in
Mem. Inst. Oswaldo Cruz. Publicado em: 03/10/2016
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3. Liver metabolic changes induced by conjugated linoleic acid in calorie-restricted rats
ABSTRACT Objective Complexes like conjugated linoleic acid (CLA) reduce the percentage of body fat by increasing energy expenditure, fat oxidation, or both. The aim of this study was to verify if CLA is able to mimic caloric restriction (CR), and determine the effects of CLA on liver metabolic profile of young adult male Wistar rats. Materials and methods
Arch. Endocrinol. Metab.. Publicado em: 25/08/2016
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4. Proteomic analysis of halotolerant proteins under high and low salt stress in Dunaliella salina using two-dimensional differential in-gel electrophoresis
Abstract Dunaliella salina, a single-celled marine alga with extreme salt tolerance, is an important model organism for studying fundamental extremophile survival mechanisms and their potential practical applications. In this study, two-dimensional differential in-gel electrophoresis (2D-DIGE) was used to investigate the expression of halotolerant proteins u
Genet. Mol. Biol.. Publicado em: 13/05/2016
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5. A síntese de coenzima Q e a estabilidade de DNA mitocondrial em Saccharomyces cerevisiae. / The synthesis of coenzyme Q and stability of mitochondrial DNA in Saccharomyces cerevisiae.
Mutantes respiratórios de Saccharomyces cerevisiae podem apresentar uma ampla variedade de instabilidade do mtDNA. Nós analisamos diferentes classes de mutantes e observamos uma elevada instabilidade nos mutantes que não possuem a coenzima Q (CoQ) funcional. O objetivo desse trabalho foi avaliar os efeitos das alterações no estado redox da coenzima Q so
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/06/2012
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6. Effects of hypoxia storage on gene transcript accumulation during tomato fruit ripening
Tomato (Solanum lycopersicum L.) is a climacteric fruit, i.e., during ripening an increase in ethylene synthesis and high rate of respiration are observed. Low oxygen levels might inhibit or block ethylene biosynthesis and therefore retard the ripening process. Despite commercial applications of low oxygen treatments, the precise mode of action of low oxygen
Braz. J. Plant Physiol.. Publicado em: 2012-06
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7. Application of cassava starch and carnauba wax-based edible coatings in minimally processed apples / Aplicação de coberturas comestíveis à base de fécula de mandioca e cera de carnaúba em maçãs minimamente processadas
This study aimed at formulating a cassava starch, carnauba wax and stearic acid or palmitic acid - based edible coating, and evaluating their properties and their effects when applied to minimally processed apples. In a first step, Plackett-Burman designs were performed for the following variables selection of coating formulations: cassava starch concentrati
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/12/2011
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8. Functional identification and genomic structure of Paracoccidioides brasiliensis nuclear genes associated to cytochrome c oxidase activity. / Identificação funcional e estrutura genômica de genes nucleares associados à atividade da citocromo C oxidase de Paracoccidioides brasiliensis.
Paracoccidioides brasiliensis is the ethologic agent of the paracoccioidomycose, a systemic mycosis prevalent in Latin American. This is a thermo dimorphic fungus living in the mycelium form at room temperature (25ºC) and in the yeast form between 35 ºC e 37 ºC. In this work we identified and study fifteen (15) new P. brasiliensis genes involved in the mi
Publicado em: 2009
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9. Efeito do derivado quinazolinico PD153035 sobre a função mitocondrial : implicações na cardioproteção / Effect of the 4-anilinoquinazoline PD153035 on mitochondrial function : implication in cardioprotection
The action of the aminoquinazoline PD153035 on the mitochondrial functions was investigated. The addition of various PD153035 concentrations (5, 10, 20 and 40 μM) to liver mitochondria decreased the mitochondrial respiratory control, induced mitochondrial permeability transition cyclosporin A-sensitive, increased the mitochondrial calcium uptake capacit
Publicado em: 2008
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10. Resistance of Brevipalpus phoenicis (Geijskes, 1939) (Acari: Tenuipalpidae) to acaricides that inhibit cellular respiration in citrus groves / Resistência de Brevipalpus phoenicis (Geijskes, 1939) (Acari: Tenuipalpidae) a acaricidas inibidores da respiração celular na cultura dos citros
Acaricides that affect the cellular respiration process, specifically in the energy production (ATP), have been an important component in acaricide resistance management programs. Basically, these acaricides interfere in the oxidative phosphorilation or electron transportation in the mitochondria, by inhibiting or disrupting some specific process. This group
Publicado em: 2007
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11. Ahp1 e Tsa1 de Saccharomyces cerevisiae: regulação gênica, caracterização bioquímica, estrutura e função das duas peroxirredoxinas mais abundantes de leveduras / Saccharomyces cerevisiae Ahp1 and Tsa1: transcriptional regulation, biochemical characterization, structure and function of the two most abundant peroxiredoxins from yeast.
The incomplete reduction of oxygen to water during respiration results in the formation of Reactive Oxygen Species (ROS), oxidizing compounds, which can generate severe cellular oxidative stress. Aerobic cells are equipped with a complex defense system to cope with this condition. Peroxiredoxins make up a family of antioxidant enzymes with the ability to rem
Publicado em: 2007
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12. DNA strand breakage, activation of poly (ADP-ribose) synthetase, and cellular energy depletion are involved in the cytotoxicity of macrophages and smooth muscle cells exposed to peroxynitrite.
The free radicals nitric oxide and superoxide anion react to form peroxynitrite (ONOO-), a highly toxic oxidant species. In vivo formation of ONOO- has been demonstrated in shock and inflammation. Herein we provide evidence that cytotoxicity in cells exposed to ONOO- is mediated by DNA strand breakage and the subsequent activation of the DNA repair enzyme po