نتایج جستجو برای: nadph

تعداد نتایج: 21368  

Journal: :Plant physiology 1972
D E Koeppe R J Miller

Isolated corn (Zea mays L.) mitochondria were found to oxidize reduced nicotinamide adenine dinucleotide phosphate in a KCl reaction medium. This oxidation was dependent on the presence of calcium or phosphate or both. Strontium and manganese substituted for calcium, but magnesium or barium did not. The oxidation of NADPH produced contraction of mitochondria swollen in KCl. Further evidence tha...

Journal: :American journal of physiology. Lung cellular and molecular physiology 2008
Candice D Fike James C Slaughter Mark R Kaplowitz Yongmei Zhang Judy L Aschner

Our main objective was to determine whether reactive oxygen species (ROS), such as superoxide (O(2)(-)) and hydrogen peroxide (H(2)O(2)), contribute to altered pulmonary vascular responses in piglets with chronic hypoxia-induced pulmonary hypertension. Piglets were raised in either room air (control) or hypoxia for 3 days. The effect of the cell-permeable superoxide dismutase mimetic (SOD; M404...

Journal: :Hypertension 2008
Weixing Han Hewang Li Van Anthony M Villar Annabelle M Pascua Mustafa I Dajani Xiaoyang Wang Aruna Natarajan Mark T Quinn Robin A Felder Pedro A Jose Peiying Yu

Recent studies have indicated the importance of cholesterol-rich membrane lipid rafts (LRs) in oxidative stress-induced signal transduction. Reduced nicotinamide-adenine dinucleotide phosphate (NADPH) oxidases, the major sources of reactive oxygen species, are implicated in cardiovascular diseases, including hypertension. We tested the hypothesis that NADPH oxidase subunits and activity are reg...

Journal: :Diabetes 2005
Rosita Ivarsson Roel Quintens Sandra Dejonghe Katsura Tsukamoto Peter in 't Veld Erik Renström Frans C Schuit

Cellular redox state is an important metabolic variable, influencing many aspects of cell function like growth, apoptosis, and reductive biosynthesis. In this report, we identify NADPH as a candidate signaling molecule for exocytosis in neuroendocrine cells. In pancreatic beta-cells, glucose acutely raised the NADPH-to-NADP+ ratio and stimulated insulin release in parallel. Furthermore, intrace...

Journal: :Antioxidants & redox signaling 2006
David W Infanger Ram V Sharma Robin L Davisson

The NADPH oxidase is a multi-subunit enzyme that catalyzes the reduction of molecular oxygen to form superoxide (O(2)(-)). While classically linked to the respiratory burst in neutrophils, recent evidence now shows that O(2)(-) (and associated reactive oxygen species, ROS) generated by NADPH oxidase in nonphagocytic cells serves myriad functions in health and disease. An entire new family of NA...

Journal: :The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society 1997
M O López-Figueroa J P Ravault B Cozzi M Møller

We used the NADPH-diaphorase histochemical method as a potential marker for nitric oxide synthase (NOS)-containing nerve fibers innervating the pineal gland of the sheep. Nerve fibers containing NADPH-diaphorase activity provide dense innervation of the sheep pineal gland. The nerve fibers were located in the pineal capsule, in the connective tissue septae separating the lobull of the gland, an...

2004
Maristela L. Onozato Akihiro Tojo

Oxidative stress plays an important role in the development of renal damage in diabetes and hypertension. The major source of oxidative stress is nicotinamide adenine dinucleotide phosphate (NADPH) oxidase-derived superoxide anion (O2 ) that directly damage cell and also activate signaling of cell proliferation, adhesion molecules, and fibrosis. O2 .also inactivates endothelium derived nitric o...

Journal: :New biotechnology 2009
Ronald E Hector Michael J Bowman Christopher D Skory Michael A Cotta

Engineered xylose-metabolizing Saccharomyces cerevisiae cells grown on xylose show increased expression of YMR315W at both the mRNA and protein levels. Additionally, the YMR315W promoter contains a putative binding site for the transcription factor Stb5p, which has been shown to regulate genes involved in NADPH production such as ZWF1, GND1 and GND2. We hypothesized that Ymr315wp, a conserved p...

Journal: :The Biochemical journal 1979
Y Hino S Minakami

The hepatic microsomal haem oxygenase activity of rats treated with CoCl2 was studied kinetically by measuring biliverdin, the immediate product of the reaction. Biliverdin was extracted with diethyl ether/ethanol mixture, and was determined by the difference between A690 and A800. The apparent Km value for NADPH (at 50 microM-haematin) was about 0.2 microM when an NADPH-generating system was u...

Journal: :Histology and histopathology 2001
X Ye H C Meeker A C Scallet R I Carp

Previous studies showed that the histopathological changes found in the brains of scrapie-infected animals included amyloid plaque formation, vacuolation, gliosis and neuronal and neurite degeneration. There were differences in the histopathological findings as a function of the scrapie strain-host combination. NADPH-diaphorase (NADPH-d) has been shown to be a selective histochemical marker for...

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