Journal ArticleDOI
Measurement of 10−7 to 10−12 mol of potassium by stimulation of pyruvate kinase
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A method for measuring potassium is described which is based on the requirement of pyruvate kinase for this cation and results were in agreement with those obtained using a flame photometer.About:
This article is published in Analytical Biochemistry.The article was published on 1979-01-15. It has received 28 citations till now. The article focuses on the topics: Potassium & Pyruvate kinase.read more
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Journal ArticleDOI
Brain Glucose Metabolism: Integration of Energetics with Function
TL;DR: Glucose is the long-established, obligatory fuel for brain that fulfills many critical functions, including ATP production, oxidative stress management, and synthesis of neurotransmitters, neuromodulators, and structural components.
Book ChapterDOI
Potassium Estimation, Uptake, and Its Role in the Physiology and Metabolism of Flowering Plants
Iqbal Singh Bhandal,C.P. Malik +1 more
TL;DR: The chapter reveals that potassium uptake is mainly metabolic at low external [K + ] ( M ), while it becomes increasingly nonmetabolic at higher (> 1 m M ) external [ K + ].
Journal ArticleDOI
Lack of appropriate stoichiometry: Strong evidence against an energetically important astrocyte–neuron lactate shuttle in brain
TL;DR: This model was not viable because it did not fulfill critical stoichiometric requirements, and astrocyte–neuron lactate shuttling does not make large, metabolically significant contributions to energetics of brain activation.
Journal ArticleDOI
Factors limiting regeneration of ATP following temporary ischemia in cat brain.
TL;DR: The results suggest that postischemic resynthesis of ATP may be limited not by inadequate delivery of O2, but rather by defective production of NADH.
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Journal ArticleDOI
Role of Mineral Elements with Emphasis on the Univalent Cations
and H J Evans,G J Sorger +1 more
TL;DR: The status of the knowledge of the roles of the essential mineral elements other than univalent cations is surveyed, referring for the most part to the pertinent recent reviews, and the importance of these cations in this capacity is questionable.
Journal ArticleDOI
Enzymic Assay of 10−7 to 10−14 Moles of Sucrose in Plant Tissues
TL;DR: The method is based on the destruction of pre-existing glucose and fructose, followed by the hydrolysis of sucrose and reduction of NADP+ by a series of coupled enzymic reactions.
Journal ArticleDOI
An enzymatic cycling method for nicotinamide-adenine dinucleotide with malic and alcohol dehydrogenases
TL;DR: The method has a number of advantages compared to those previously described; the cycling rate is high; blank values are low; the reaction is linear over a wide range of NAD concentrations; and the terminal indicator reaction requires only one step.
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