Results 51 to 60 of about 92,820 (240)

Quantitation of L-cystine in Food Supplements and Additives Using 1H qNMR: Method Development and Application

open access: yesFoods, 2023
Cystine-enriched food supplements are increasingly popular due to their beneficial health effects. However, the lack of industry standards and market regulations resulted in quality issues with cystine food products, including cases of food adulteration ...
Zhen Chen   +4 more
doaj   +1 more source

A Cytotoxic, Co-operative Interaction Between Energy Deprivation and Glutamate Release From System x\u3csub\u3ec\u3c/sub\u3e\u3csup\u3e−\u3c/sup\u3e Mediates Aglycemic Neuronal Cell Death [PDF]

open access: yes, 2015
The astrocyte cystine/glutamate antiporter (system xc−) contributes substantially to the excitotoxic neuronal cell death facilitated by glucose deprivation. The purpose of this study was to determine the mechanism by which this occurred.
He, Yan   +5 more
core   +1 more source

Phylogenomic study of Burkholderia glathei-like organisms, proposal of 13 novel Burkholderia species and emended descriptions of Burkholderia sordidicola, Burkholderia zhejiangensis, and Burkholderia grimmiae [PDF]

open access: yes, 2016
Partial gyrB gene sequence analysis of 17 isolates from human and environmental sources revealed 13 clusters of strains and identified them as Burkholderia glathei Glade (BGC) bacteria.
Cooper, Vaughn S   +5 more
core   +3 more sources

Gas-Phase Fragmentation Reactions of Protonated Cystine using High-Resolution Tandem Mass Spectrometry

open access: yesMolecules, 2019
Cystine is an important biomolecule in living systems. Although collision-induced dissociation (CID)-based tandem mass spectrometry (MS/MS) is commonly applied for identification and quantification of cystine in both biomedical and nutritional studies ...
Pengwei Zhang   +6 more
doaj   +1 more source

Blunted Cystine–Glutamate Antiporter Function in the Nucleus Accumbens Promotes Cocaine-induced Drug Seeking [PDF]

open access: yes, 2008
Repeated cocaine alters glutamate neurotransmission, in part, by reducing cystine–glutamate exchange via system xc−, which maintains glutamate levels and receptor stimulation in the extrasynaptic compartment.
Abdulhameed, Omer   +5 more
core   +1 more source

Digestible methionine plus cystine requirement in tambaqui (Colossoma macropomum) diets: Growth performance and plasma biochemistry

open access: yesAquaculture Reports, 2023
Most animals require methionine as an indispensable amino acid in their dietary protein, the normal growth of animals being affected by any deficiency or excess of methionine and cystine in the diet.
Rômulo Jordão Neves Aroucha   +5 more
doaj   +1 more source

Repeated \u3cem\u3eN\u3c/em\u3e-Acetylcysteine Administration Alters Plasticity-Dependent Effects of Cocaine [PDF]

open access: yes, 2007
Cocaine produces a persistent reduction in cystine–glutamate exchange via system xc− in the nucleus accumbens that may contribute to pathological glutamate signaling linked to addiction.
Abdulhameed, Omer   +7 more
core   +1 more source

Nutritional requirements for the production of dithiolopyrrolone antibiotics by Saccharothrix algeriensis NRRL B-24137 [PDF]

open access: yes, 2006
The amino acid and humic acid requirements of Saccharothrix algeriensis NRRL B-24137 for growth and production of the dithiolopyrrolone antibiotics were studied in a semi-synthetic medium (SSM).
Bouras, Noureddine   +3 more
core   +1 more source

Exogenous cystine increases susceptibility of drug-resistant Salmonella to gentamicin by promoting oxidation of glutathione metabolism and imbalance of intracellular redox levels

open access: yesFrontiers in Microbiology
IntroductionAntibiotic overuse has caused the development of bacterial resistance, which is a major threat to public health. Intracellular metabolic processes are essential for maintaining the normal physiological activities of bacteria, and an ...
Junyuan Du   +11 more
doaj   +1 more source

Selective, Simple and Economical Method for the Voltammetric Determination of Bi(III) in the presence Cystine in Non – Complexing Solution

open access: yesE3S Web of Conferences, 2013
The simple and fast method for the determination of Bi(III) in non-complexing solution was proposed. The catalytic activity of cystine on Bi(III) ions electroreduction process were utilized.
Nosal –Wiercińska A.   +4 more
doaj   +1 more source

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