Results 81 to 90 of about 112,393 (379)

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

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

Contribution of Cystine-Glutamate Antiporters to the Psychotomimetic Effects of Phencyclidine [PDF]

open access: yes, 2008
Altered glutamate signaling contributes to a myriad of neural disorders, including schizophrenia. While synaptic levels are intensely studied, nonvesicular release mechanisms, including cystine–glutamate exchange, maintain high steady-state glutamate ...
A Baskys   +78 more
core   +2 more sources

PIEZO1‐GPX4 Axis Mediates Mechanical Stress‐Induced Vertebral Growth Plate Dysplasia via Ferroptosis Activation

open access: yesAdvanced Science, EarlyView.
Mechanical stress activates PIEZO1 in vertebral growth plate chondrocytes, triggering ferroptosis through direct binding and inhibition of GPX4. This axis promotes lipid peroxidation and pathological ossification, accelerating spinal deformities. Clinical and genetic evidence (Piezo1‐cKO) confirms its role in scoliosis progression.
Fei Chen   +14 more
wiley   +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

Studies on Woolen Threads from Historical Tapestries [PDF]

open access: yes, 2007
Fourier transform (FTIR) attenuated total reflectance (ATR)and second derivative spectroscopy has been used for the first time to evaluate the state of degradation in historical woollen threads from the collections of Flemish tapestries (15th-17th ...
Campana, Roberto   +2 more
core  

Environmental cystine drives glutamine anaplerosis and sensitizes cells to glutaminase inhibition

open access: yesbioRxiv, 2017
Many cancer cell lines depend on extracellular glutamine as a major tri-carboxylic acid (TCA) cycle anaplerotic substrate to support proliferation in vitro.
Alexander Muir   +4 more
semanticscholar   +1 more source

Long Term High‐Salt Diet Induces Cognitive Impairments via Down‐Regulating SHANK1

open access: yesAdvanced Science, EarlyView.
The study identifies a novel mechanistic link between long‐term HS diet and cognitive impairment, wherein PKA/CREB axis inactivation leads to SHANK1 reduction, synaptic damage, and cognitive deficits. Abstract High‐salt (HS) diet is an established risk factor for cognitive impairment, but the underlying mechanisms remain unclear.
Cuiping Guo   +10 more
wiley   +1 more source

Precise Molecular Structures of Cysteine, Cystine, Hydrogen-Bonded Dicysteine, Cysteine Dipeptide, Glutathione and Acetyl Cysteine Based on Additivity of Atomic Radii [PDF]

open access: yes, 2011
Structures of molecules are usually represented by arbitrary line drawings, ball and stick or space filling models. In recent years, the author found that using the appropriate radii of atoms and ions, bond lengths in inorganic, organic and biomolecules ...
Raji Heyrovska
core   +1 more source

Influence of Milk Thistle Shot on Quality Parameters of the Sour-milk Beverage [PDF]

open access: yes, 2018
Modern complicated ecological conditions cause a general necessity in improving the food structure of the population due to improving the quality, biological value and taste characteristics of products.
Bilyk, O. (Oksana)   +4 more
core   +2 more sources

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