منابع مشابه
Peroxisomes and aging.
Peroxisomes are indispensable for proper functioning of human cells. They efficiently compartmentalize enzymes responsible for a number of metabolic processes, including the absolutely essential beta-oxidation of specific fatty acid chains. These and other oxidative reactions produce hydrogen peroxide, which is, in most instances, immediately processed in situ to water and oxygen. The responsib...
متن کاملThe Impact of Peroxisomes on Cellular Aging and Death
Peroxisomes are ubiquitous eukaryotic organelles, which perform a plethora of functions including hydrogen peroxide metabolism and β-oxidation of fatty acids. Reactive oxygen species produced by peroxisomes are a major contributing factor to cellular oxidative stress, which is supposed to significantly accelerate aging and cell death according to the free radical theory of aging. However, relat...
متن کاملBiology of senescent liver peroxisomes: role in hepatocellular aging and disease.
Despite rising interest in the health problems of the elderly, information on senescence-related alterations in essential metabolic pathways and their responses to various chemicals is scarce. Although peroxisomal pathways are involved in a multitude of cellular functions, little attention has been given to the potential relationship between senescence of these organelles and the process of agi...
متن کاملPeroxisomes and oxidative stress.
The discovery of the colocalization of catalase with H2O2-generating oxidases in peroxisomes was the first indication of their involvement in the metabolism of oxygen metabolites. In past decades it has been revealed that peroxisomes participate not only in the generation of reactive oxygen species (ROS) with grave consequences for cell fate such as malignant degeneration but also in cell rescu...
متن کاملMicrobodies: peroxisomes and glyoxysomes
Microbodies were first reported at the ultrastructural level in the proximal convoluted tubule ofmouse kidney by Rhodin in 1954 (1) and in hepatic parenchymal cells by Rouiller and Bernhard in 1956 (2) at about the time The Journal of Cell Biology was established . They were reported in plants by Porter and Caulfield in 1958 (3) and by Mollenhauer et al. in 1966 (4) . Microbodies are now recogn...
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ژورنال
عنوان ژورنال: Biochimica et Biophysica Acta (BBA) - Molecular Cell Research
سال: 2006
ISSN: 0167-4889
DOI: 10.1016/j.bbamcr.2006.08.017