Results 91 to 100 of about 1,766,693 (250)

Investigation of Coenzyme Q[10] by Voltammetry [PDF]

open access: yes, 2014
A simple, accurate and rapid voltammetric method has been developed for the quantitative determination of coenzyme Q[10]. Studies with direct current voltammetry were carried out using a glassy carbon electrode (GCE) in a phosphate buffer solution (pH 6 ...
Kratochvil, B.   +5 more
core   +1 more source

Species Dynamics and Gene Expression in Algal Polycultures Under Mixotrophic Cultivation in Outdoor Pilot‐Scale Nordic Conditions

open access: yesBiotechnology and Bioengineering, EarlyView.
These results demonstrate that mixotrophic conditions drive both microbial community shifts and metabolic reprogramming, underscoring the importance of cultivation strategy and polyculture selection for targeted applications such as nutrient recovery and bioproduct generation.
Quyen Nham   +3 more
wiley   +1 more source

Simple and convenient two step synthesis of 5-bromo-2,3-dimethoxy-6-methyl-1,4-benzoquinone

open access: yesGreen Processing and Synthesis, 2019
5-bromo-2,3-dimethoxy-6-methyl-1,4-benzoquinone 3, a key intermediate for preparing coenzyme Q compounds, was readily synthesized in two steps by a reaction sequence starting from the commercially available 3,4,5-trimethoxytoluene 1 via bromination and ...
Qiu Yong-Fu   +4 more
doaj   +1 more source

Coenzyme Q2 is a universal substrate for the measurement of respiratory chain enzyme activities in trypanosomatids

open access: yesParasite, 2019
The measurement of respiratory chain enzyme activities is an integral part of basic research as well as for specialized examinations in clinical biochemistry. Most of the enzymes use ubiquinone as one of their substrates.
Čermáková Petra   +3 more
doaj   +1 more source

Biosynthesis of coenzyme Q in eukaryotes

open access: yesBioscience, Biotechnology, and Biochemistry, 2016
Abstract Coenzyme Q (CoQ) is a component of the electron transport chain that participates in aerobic cellular respiration to produce ATP. In addition, CoQ acts as an electron acceptor in several enzymatic reactions involving oxidation–reduction.
openaire   +2 more sources

Metabolic abnormalities and reprogramming in cats with naturally occurring hypertrophic cardiomyopathy

open access: yesESC Heart Failure, Volume 12, Issue 2, Page 1256-1270, April 2025.
Abstract Background and aims The heart is a metabolic organ rich in mitochondria. The failing heart reprograms to utilize different energy substrates, which increase its oxygen consumption. These adaptive changes contribute to increased oxidative stress.
Qinghong Li   +12 more
wiley   +1 more source

Antioxidant defense system in skeletal muscle of rats treated with cadmium a possible protective role of coenzyme Q(10)

open access: yes, 2001
The effect of cadmium, coenzyme Q(10) and cadmium+coenzyme Q10 on the activities of superoxide dismutases (total, manganese containing and copper-zinc containing), catalase, glutathione peroxidase, glutathione-S-transferase, glutathione reductase and ...
Ognjanović, Branka I   +5 more
core   +3 more sources

Extension of Life-Span in Caenorhabditis elegans by a Diet Lacking Coenzyme Q

open access: yes, 2002
The isoprenylated benzoquinone coenzyme Q is a redox-active lipid essential for electron transport in aerobic respiration. Here, we show that withdrawal of coenzyme Q (Q) from the diet of wild-type nematodes extends adult life-span by ∼60 ...
Pamela L. Larsen, Catherine F. Clarke
core   +1 more source

Illuminating point‐of‐care diagnostics with aggregation‐induced emission biosensors

open access: yesFlexMat, EarlyView.
This review highlights the application of aggregation‐induced emission luminogens (AIEgens) in point‐of‐care (POC) diagnostics for disease biomarker detection. It systematically examines a range of biosensing platforms, including lateral flow immunoassays, microfluidic chips, and electrochemiluminescence sensors, alongside their utility in detecting ...
Danni Hu   +3 more
wiley   +1 more source

Biochemical Alterations in Semen of Varicocele Patients: A Review of the Literature

open access: yesAdvances in Urology, 2012
Oxidative stress is a mechanism underlying different kinds of infertility in human males. However, different results can be observed in relation to the method used for its evaluation.
Antonio Mancini   +7 more
doaj   +1 more source

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