Results 31 to 40 of about 98,142 (384)

Phototherapy of Brain Tumours Using a Fibre Optic Neurosystem

open access: yesPhotonics, 2021
In this work, a new approach was tested to assess the cellular composition of tissues by time-resolved methods of fluorescence analysis of exogenous and endogenous fluorophores.
Yuliya Maklygina   +4 more
doaj   +1 more source

Synthetic Biomimetic Coenzymes and Alcohol Dehydrogenases for Asymmetric Catalysis

open access: yesCatalysts, 2019
Redox reactions catalyzed by highly selective nicotinamide-dependent oxidoreductases are rising to prominence in industry. The cost of nicotinamide adenine dinucleotide coenzymes has led to the use of well-established elaborate regeneration systems and ...
Laia Josa-Culleré   +8 more
semanticscholar   +1 more source

Protein engineering of oxidoreductases utilizing nicotinamide-based coenzymes, with applications in synthetic biology

open access: yesSynthetic and Systems Biotechnology, 2017
Two natural nicotinamide-based coenzymes (NAD and NADP) are indispensably required by the vast majority of oxidoreductases for catabolism and anabolism, respectively.
Chun You   +4 more
doaj   +1 more source

Whole Blood Metabolomics by 1H NMR Spectroscopy Provides a New Opportunity To Evaluate Coenzymes and Antioxidants.

open access: yesAnalytical Chemistry, 2017
Conventional human blood metabolomics employs serum or plasma and provides a wealth of metabolic information therein. However, this approach lacks the ability to measure and evaluate important metabolites such as coenzymes and antioxidants that are ...
G. A. Nagana Gowda, D. Raftery
semanticscholar   +1 more source

Anisotropic relaxation in NADH excited states studied by polarization-modulation pump-probe transient spectroscopy [PDF]

open access: yes, 2020
We present the results of experimental and theoretical studies of fast anisotropic relaxation and rotational diffusion in the first electron excited state of biological coenzyme NADH in water-ethanol solutions. The experiments have been carried out by means of a novel polarization-modulation transient method and fluorescence polarization spectroscopy ...
arxiv   +1 more source

Testing the content of vitamin A in dietary supplements

open access: yesJournal of Education, Health and Sport, 2019
Vitamins in the human body perform regulatory functions, determine the development, health and physical performance of the body. Most of them are not synthesised in the body, therefore they must be supplied with food. They interact with enzymes, which is
Marcin Ślifirczyk   +3 more
doaj   +5 more sources

Effects of Cholecalciferol on Key Components of Vitamin D-Endo/Para/Autocrine System in Experimental Type 1 Diabetes

open access: yesInternational Journal of Endocrinology, 2018
Objectives. Recent prospective studies have found the associations between type 1 diabetes (T1D) and vitamin D deficiency. We investigated the role of vitamin D in the regulation of 25OHD-1α-hydroxylase (CYP27B1) and VDR expression in different tissues ...
Anna Mazanova   +5 more
doaj   +1 more source

Simultaneous Analysis of Major Coenzymes of Cellular Redox Reactions and Energy Using ex Vivo 1H NMR Spectroscopy

open access: yesAnalytical Chemistry, 2016
Coenzymes of cellular redox reactions and cellular energy mediate biochemical reactions fundamental to the functioning of all living cells. Despite their immense interest, no simple method exists to gain insights into their cellular concentrations in a ...
G. A. Nagana Gowda   +4 more
semanticscholar   +1 more source

Atherosclerosis and Coenzyme Q10 [PDF]

open access: yesInternational Journal of Molecular Sciences, 2019
Atherosclerosis is the most common cause of cardiac deaths worldwide. Classically, atherosclerosis has been explained as a simple arterial lipid deposition with concomitant loss of vascular elasticity. Eventually, this condition can lead to consequent blood flow reduction through the affected vessel.
Juan M. Suárez-Rivero   +10 more
openaire   +4 more sources

Determination of a method for extraction of coenzyme Q10 in human plasma: optimization of the use of surfactants and other variables [PDF]

open access: yesEinstein (São Paulo), 2012
Objective: To establish a routine for the extraction of the total levelsof CoQ10 in human plasma through the Ultra High Performance LiquidChromatography (UHPLC). Methods: Two extraction protocolswere tested: a) methanol: hexane and b) 1-propanol.
Claudia Cristina Ferreiro-Barros   +2 more
doaj   +2 more sources

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