Cell Respiration
Mostrando 1-12 de 442 artigos, teses e dissertações.
-
1. A cytotoxic Petiveria alliacea dry extract induces ATP depletion and decreases β-F1-ATPase expression in breast cancer cells and promotes survival in tumor-bearing mice
Abstract Metabolic plasticity in cancer cells assures cell survival and cell proliferation under variable levels of oxygen and nutrients. Therefore, new anticancer treatments endeavor to target such plasticity by modifying main metabolic pathways as glycolysis or oxidative phosphorylation. In American traditional medicine Petiveria alliacea L., Phytolaccacea
Rev. bras. farmacogn.. Publicado em: 2017-06
-
2. 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
-
3. Effects of Arbuscular Mycorrhiza on Osmotic Adjustment and Photosynthetic Physiology of Maize Seedlings in Black Soils Region of Northeast China
ABSTRACT To investigate the effect of arbuscular mycorrhiza fungi on maize growth, osmoregulation substances and photosynthetic physiology, a popular maize variety ZD 958 was measured under potted condition. Arbuscular mycorrhiza (AM) symbiosis promoted plant growth, and enhanced plant height, leaf length, mean leaf width and dry weight. Higher soluble sugar
Braz. arch. biol. technol.. Publicado em: 01/12/2016
-
4. 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
-
5. Citotoxicity of Fipronil on Hepatocytes Isolated from Rat and Effects of Its Biotransformation
ABSTRACT The aim of this study was to characterize the mechanism of toxicity of fipronil on hepatocytes isolated from the rat and the effect of its biotransformation on the toxicological potential. The toxicity of fipronil was assessed by monitoring the oxygen consumption and mitochondrial membrane potential, intracellular ATP concentration, Ca2+ homeostasis
Braz. arch. biol. technol.. Publicado em: 2015-12
-
6. Identification of genes expressed by Cryptococcus gattii during iron deprivation
Cryptococcus neoformans and C. gattii are pathogenic yeasts that cause life-threatening diseases in humans and animals. Iron is an essential nutrient for virtually every organism as it functions as a cofactor in numerous essential enzymatic reactions. In the literature, the competition for iron between microbes and mammalian hosts during infection is well do
Braz. J. Microbiol.. Publicado em: 2014-09
-
7. 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
-
8. 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
-
9. Remoção de nitrogênio em biofiltros aerado e anóxico, com alto índice de vazios e sem remoção de lodo
A disposição inadequada do nitrogênio em corpos receptores gera problemas como: toxicidade para seres vivos; consumo de oxigênio do meio para atender a demanda nitrogenada; eutrofização; e contaminação dos aquíferos por nitrato. Por esta razão é muitas vezes necessário que seja realizado tratamento complementar dos esgotos para eliminar, ou reduz
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/07/2011
-
10. Ecophysiological and anatomical changes due to uptake and accumulation of heavy metal in Brachiaria decumbens
The growth and developmental characteristics of grasses and their high biodiversity make such plants suitable for remediation of areas contaminated by heavy metals. Nevertheless, heavy metal toxic effect on the plants may cause alteration in their metabolic pathways, such as photosynthesis, respiration, and growth, modifying plant anatomy. This work aimed to
Scientia Agricola. Publicado em: 2011-10
-
11. Respirometry kinetics of phenol oxidation by Comamonas testosteroni Pb50 under various conditions of nutritional stress
Kinetics of phenol biodegradation using suspended biomass of Comamonas testosteroni Pb50 (monoculture) was measured under conditions of nutrient abundance, limitation, and prolonged cell starvation in a fed-batch reactor, with phenol being the sole carbon and energy source. The pre-washed cells were applied for measurement of the phenol and oxygen uptake rat
Brazilian Archives of Biology and Technology. Publicado em: 2010-12
-
12. Proteção por L-carnitina ou piracetam contra a morte celular causada por sinvastatina em celulas tumorais e não tumorais / Protection by L-carnitine or piracetam against cell death caused by simvastatin in tumor and non tumorigenic cell lines
Statins are drugs widely used in the treatment of hypercholesterolemia. They are competitive inhibitors of 3-hydroxy 3-methylglutaryl coenzyme A (HMG-CoA) reductase preventing in this way, the synthesis of cholesterol. L-carnitine is synthesized from the essential aminoacids lysine and methionine in liver and kidney and plays na important role in the cell, w
Publicado em: 2010