Results 21 to 30 of about 2,226,397 (316)

Amino Acids, Amino Acid Derivatives and Peptides as Antioxidants

open access: yes, 2022
[Excerpt] The biological concept of antioxidant refers to any compound that is able to delay or 5 prevent the oxidation of easily oxidizable substrates, such as DNA, proteins and 6 lipids. Antioxidants reduce oxidative stress and mutations in DNA as well as other 7 parameters associated with cell damage.
Monteiro, Luís S.   +1 more
openaire   +2 more sources

Amino Acid Metabolomic Profiles in Bovine Mammary Epithelial Cells under Essential Amino Acid Restriction

open access: yesAnimals, 2021
Mammary epithelial cells (MECs) in culture are a useful model for elucidating mammary gland metabolism and changes that occur under different nutrient disponibility. MECs were exposed to different treatments: 100% EAA for 8 h and 24 h restriction (R); 2%
Laura López-Diez   +3 more
doaj   +1 more source

Excitatory Amino Acids.

open access: yesChemInform, 1998
AbstractFor Abstract see ChemInform Abstract in Full Text.
Mark G. Moloney   +2 more
openaire   +5 more sources

Amino acid requirements in horses [PDF]

open access: yesAsian-Australasian Journal of Animal Sciences, 2020
Evaluating amino acid requirements, specifically threonine requirements, in horses will enable better feed formulation and result in economic production, improved animal health, and reduced environmental pollution.
Chan Hee Mok, Kristine L. Urschel
doaj   +1 more source

Discovery of an ʟ-amino acid ligase implicated in Staphylococcal sulfur amino acid metabolism

open access: yes, 2022
Enzymes involved in Staphylococcus aureus amino acid metabolism have recently gained traction as promising targets for the development of new antibiotics, however, not all aspects of this process are understood. The ATP-grasp superfamily includes enzymes
Bruning, John B.   +13 more
core   +2 more sources

Aza-27-crown-9 Amino Acid

open access: yesMolbank, 2010
A luminescent aza-27-crown-9 ether amino acid was prepared by a three-step reaction sequence. The compound signals ammonium ion binding by an increase in emission intensity.
Andreas Späth, Burkhard König
doaj   +1 more source

Physiology of the Amino Acids [PDF]

open access: yesScience, 1942
We have followed the amino acids from their entrance into the alimentary tract in the form of food proteins through the successive steps of digestion, absorption into the blood stream and passage from the blood stream into the tissues, where they are concentrated by some unknown mechanism to many times their concentration in the blood plasma.
openaire   +2 more sources

Research progress on branched-chain amino acid aminotransferases

open access: yesFrontiers in Genetics, 2023
Branched-chain amino acid aminotransferases, widely present in natural organisms, catalyze bidirectional amino transfer between branched-chain amino acids and branched-chain α-ketoacids in cells.
Can Chen   +3 more
doaj   +1 more source

Effects of D-amino acid oxidase inhibition on memory performance and long-term potentiation in vivo [PDF]

open access: yes, 2013
N-methyl-d-aspartate receptor (NMDAR) activation can initiate changes in synaptic strength, evident as long-term potentiation (LTP), and is a key molecular correlate of memory formation.
Kerry L. Spear   +15 more
core   +1 more source

Wheat amino acid transporters highly expressed in grain cells regulate amino acid accumulation in grain [PDF]

open access: yes, 2021
Amino acids are delivered into developing wheat grains to support the accumulation of storage proteins in the starchy endosperm, and transporters play important roles in regulating this process. RNA-seq, RT-qPCR, and promoter-GUS assays showed that three
Zhiqiang Shi   +35 more
core   +1 more source

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