نتایج جستجو برای: krebs cycle

تعداد نتایج: 276207  

2018
Amy A. Caudy

Metabolism is the process of nutrient uptake and conversion, : Background and executed by the metabolic network. Its evolutionary precursors most likely originated in non-enzymatic chemistry. To be exploitable in a Darwinian process that forms a metabolic pathway, non-enzymatic reactions need to form a chemical network that produces advantage-providing metabolites in a single, life compatible c...

Journal: :The Journal of biological chemistry 1958
S BANERJEE D K BISWAS H D SINGH

Scurvy is associated with disturbed carbohydrate metabolism. A diminished glucose tolerance has been observed by several workers in scorbutic guinea pigs (l-4), in scorbutic monkeys (5), and in human subjects with low blood ascorbic acid level (6, 7). Several workers (2,4, 8) have reported a decrease in the liver and muscle glycogen content of scorbutic guinea pigs. Banerjee and Ghosh (9) have ...

Journal: :Biochemistry and Molecular Biology Education 2016

2013
J. Keith Killian Markku Miettinen Carly Smith Maria Merino Maria Tsokos Martha Quezado Mona S. Jahromi Robert L. Walker Jerzy Lasota Mark Raffeld Brandy Klotzle Zengfeng Wang Laura Jones Yuelin Zhu Yonghong Wang Joshua J. Waterfall Maureen J. O’Sullivan Constantine Stratakis Katherine A. Janeway Joshua D. Schiffman Jian-Bing Fan Paul S. Meltzer

Gastrointestinal stromal tumors (GIST) harbor driver mutations of signal transduction kinases such as KIT, or, alternatively, manifest loss-of-function defects in the mitochondrial succinate dehydrogenase (SDH) complex, a component of the Krebs cycle and electron transport chain. We have uncovered a striking divergence between the DNA methylation profi les of SDH-defi cient GIST ( n = 24) versu...

Journal: :The British journal of nutrition 1996
S Toyoshima F Watanabe H Saido E H Pezacka D W Jacobsen K Miyatake Y Nakano

To clarify the relationship between intracellular concentrations of methylmalonic acid and metabolic and growth inhibition in vitamin B12-deficient rats, hepatic methylmalonic acid levels were assayed and inhibition of glucose and glutamic acid metabolism by methylmalonic acid was studied in isolated hepatocytes. Vitamin B12-deficient rats (14 weeks old) excreted more urinary methylmalonic acid...

Journal: :Eukaryotic cell 2015
Steven Sykes Anthony Szempruch Stephen Hajduk

α-Ketoglutarate decarboxylase (α-KDE1) is a Krebs cycle enzyme found in the mitochondrion of the procyclic form (PF) of Trypanosoma brucei. The bloodstream form (BF) of T. brucei lacks a functional Krebs cycle and relies exclusively on glycolysis for ATP production. Despite the lack of a functional Krebs cycle, α-KDE1 was expressed in BF T. brucei and RNA interference knockdown of α-KDE1 mRNA r...

Journal: :The Journal of Biophysical and Biochemical Cytology 1961
S. Ralph Himmelhoch Morris J. Karnovsky

The distribution of oxidative and hydrolytic enzyme activities along the nephron of Necturus maculosus Rafinesque was studied histochemically. The proximal tubule possessed all the demonstrable enzyme activities associated with the hexose-monophosphate shunt and glycolysis, but lacked detectable succinic dehydrogenase and cytochrome oxidase activities. Krebs cycle enzymes other than succinic de...

2015
Steven F Groke Daniel H Jarrell Christopher J Edwards Peter B Chase Mark J Murphy

Background: Urine and serum alkalization with sodium bicarbonate (NaHCO3) is the initial treatment for salicylate toxicity. Due to medication shortages, sufficient quantities of NaHCO3 may not be available and alternative treatments may be needed. Case Report: This is an observational case report of a man who presented with chronic, inadvertent aspirin intoxication. Initially, we used a NaHCO3 ...

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