Introduction: Oxygenated water intake can increase cell death markers by increasing free radicals; however, sport activities and antioxidant substances can prevent some symptoms of free radical production. The purpose of this study was to investigate the effect of endurance training (ET) and purslane (portulaca oleracea) seed (PO) consumption on cytochrome-C and malondialdehyde...

The biological role of reduced triphosphopyridine nucleotide (TPNH) and the metabolic pathways of its hydrogen atom and electron appear to be fundamentally different from those of reduced diphosphopyridine nucleotide (DPNH). The latter coenzyme appears to be intimately involved in cellular adenosine triphosphate (ATP) production, and is oxidized by both a phosphorylating, antimycin-sensitive pa...

This paper by Severin and Hyman [1] is the first to connect the social biology of yeast to yeast apoptosis. Pheromones of the mating pathway trigger yeast apoptosis as marked by DNA fragmentation and generation of oxygen radicals. Disruption of cytochrome c protects the cells from alpha factor-induced apoptosis, suggesting the involvement of the mitochondrial apoptotic pathway. During preparati...

Yeast cationic ferricytochrome c was able to bind to the spinach (Spinacia oleracea) chloroplast envelope with a low affinity (Kd = 1.1 mum). The total amount of low affinity binding sites was of the order of 50 nmol cytochrome c mg(-1) protein. We gave the evidence that binding of ferricytochrome c to the envelope was electrostatic and that the envelope membranes were strongly negatively charg...

Two genes, rad6 and rad9, that confer radiation sensitivity in the yeast Saccharomyces cerevisiae also greatly reduce the frequency of chemically-induced reversions of a tester mutant cyc1-131, which is a chain initiation mutant in the structural gene determining iso-1-cytochrome c. Mutations induced by ethyl methanesulfonate (EMS), diethyl sulfate (DES), methyl methanesulfonate (MMS), dimethyl...

The respiratory components of tightly coupled mitochondria from the filamentous fungus Aspergillus niger were studied. Cytochromes a + a(3), b, and c + c(1) were identified by difference spectra. The cytochrome spectra were qualitatively similar to yeast and rat liver mitochondria. The mitochondria contained, per gram of protein, an average of 2.9 and 7.0 mumoles of ubiquinone and nicotinamide ...