Zobrazeno 1 - 10
of 190
pro vyhledávání: '"Rajindar S, Sohal"'
Autor:
Michael J. Forster, Rajindar S. Sohal
Publikováno v:
Free Radical Biology and Medicine. 73:366-382
The main objective of this review is to provide an appraisal of the current status of the relationship between energy intake and the life span of animals. The concept that a reduction in food intake, or caloric restriction (CR), retards the aging pro
Publikováno v:
Free Radical Biology and Medicine. 49:2028-2031
The simultaneous overexpression of multiple copies of Mn superoxide dismutase (SOD) and ectopic catalase (mtCat) transgenes in the mitochondria of the fruit fly, Drosophila melanogaster, was shown previously to diminish the life span. The hypothesis
Autor:
Barbara H. Sohal, Vladimir I. Klichko, Rajindar S. Sohal, William C. Orr, Katarzyna Michalak, Svetlana N. Radyuk, Judith Benes, Igor Rebrin
Publikováno v:
Free Radical Biology and Medicine. 49:1892-1902
Drosophila mitochondria contain two peroxidases, peroxiredoxin 3 (dPrx3) and peroxiredoxin 5 (dPrx5), which together constitute the sole known intramitochondrial mechanism for the catalytic removal of hydrogen and organic peroxides. dPrx3 exists excl
Publikováno v:
Biochemical and Biophysical Research Communications. 401:64-68
The hypothesis, that structural deterioration of cytochrome c oxidase (CcO) is a causal factor in the age-related decline in mitochondrial respiratory activity and an increase in H₂O₂ generation, was tested in Drosophila melanogaster. CcO activit
Publikováno v:
The Journal of Nutrition. 139:1926-1932
Coenzyme Q(10) (CoQ(10)) is widely consumed as a dietary supplement to enhance bioenergetic capacity and to ameliorate the debilitative effects of the aging process or certain pathological conditions. Our main purpose in this study was to determine w
Autor:
Katarzyna Michalak, Vladimir I. Klichko, Svetlana N. Radyuk, Rajindar S. Sohal, Judith Benes, William C. Orr, Igor Rebrin
Publikováno v:
Biochemical Journal. 419:437-445
Peroxiredoxin 5 is a distinct isoform of the peroxiredoxin gene family. The antioxidative and anti-apoptotic functions of peroxiredoxin 5 have been extensively demonstrated in cell culture experiments. In the present paper, we provide the first funct
Publikováno v:
The Journal of Nutrition. 139:533-539
In this study, our main objective was to determine whether energy restriction (ER) affects the rate of oxygen consumption of mice transiently or lastingly and whether metabolic rate plays a role in the ER-related extension of life span. We compared r
Autor:
Katarzyna Michalak, Svetlana N. Radyuk, Vladimir I. Klichko, James M. Luchak, Rajindar S. Sohal, William C. Orr, Igor Rebrin
Publikováno v:
Journal of Biological Chemistry. 284:2266-2274
GSH concentration is considerably lower in the nucleus than in the cytoplasm; however, it is significantly elevated during active cell proliferation. The main purpose of this study was to understand the mechanism underlying these variations in nuclea
Autor:
Igor Rebrin, Rajindar S. Sohal
Publikováno v:
Advanced Drug Delivery Reviews. 60:1545-1552
The GSH:GSSG ratio, which is the primary determinant of the cellular redox state, becomes progressively more pro-oxidizing during the aging process due to an elevation in the GSSG content and a decline in the ability for de novo GSH biosynthesis. The
Publikováno v:
Mechanisms of Ageing and Development. 129:558-561
A key feature of the aging process is that the mitochondrial respiratory capacity declines and production of reactive oxygen species increases in the later part of life span. In previous studies, cytochrome c oxidase (CcO), the terminal component of