Results 11 to 20 of about 458,229 (307)

Arginine and Immunity [PDF]

open access: yesThe Journal of Nutrition, 2007
For many years, dietary arginine supplementation, often combined with other substances, has been used as a mechanism to boost the immune system. Considerable controversy, however, exists as to the benefits and indications of dietary arginine due in part to a poor understanding of the role played by this amino acid in maintaining immune function ...
Petar J, Popovic   +2 more
openaire   +2 more sources

Arginine-Selective Chemical Labeling Approach for Identification and Enrichment of Reactive Arginine Residues in Proteins

open access: yes, 2018
Modification of arginine residues using dicarbonyl compounds is a common method to identify functional or reactive arginine residues in proteins.
Jayanta K. Chakrabarty (5900138)   +9 more
core   +3 more sources

I. Arginine

open access: yesBiomedicine & Pharmacotherapy, 2002
L-Arginine (Arg) is classified as an essential amino acid for birds, carnivores and young mammals and a conditionally essential amino acid for adults. It is converted by arginase to L-ornithine, a precursor of polyamines and urea, which is important in the urea cycle.
H, Tapiero   +3 more
openaire   +2 more sources

L-arginine deprivation impairs Leishmania major-specific T-cell responses. [PDF]

open access: yes, 2009
The amino acid L-arginine plays a crucial role in the regulation of immune responses. We have recently shown that uncontrolled replication of Leishmania parasites at the site of pathology correlates with high levels of arginase activity in nonhealing ...
Markus Munder   +7 more
core   +1 more source

Plasma arginine vasopressin concentrations in epileptics under monotherapy [PDF]

open access: yes, 1983
Plasma arginine vasopressin concentrations were determined by radio-immunoassay in 112 adult epileptics who were taking carbamazepine, phenytoin, primidone, or sodium valproate in long-term monotherapy, and in 19 controls.
Rascher, W.   +5 more
core   +1 more source

Differential impact of L-arginine deprivation on the activation and effector functions of T cells and macrophages. [PDF]

open access: yes, 2008
The metabolism of the amino acid L-arginine is emerging as a crucial mechanism for the regulation of immune responses. Here, we characterized the impact of L-arginine deprivation on T cell and macrophage (MPhi) effector functions: We show that whereas L ...
Corset, C   +20 more
core   +1 more source

Arginine and Cancer [PDF]

open access: yesThe Journal of Nutrition, 2004
Arginine is a dibasic, cationic, semiessential amino acid with numerous roles in cellular metabolism. It serves as an intermediate in the urea cycle and as a precursor for protein, polyamine, creatine and nitric oxide (NO) biosynthesis. Arginine is conditionally essential since it becomes necessary under periods of growth and after recovery after ...
openaire   +2 more sources

The arginine paradox.

open access: yesFolia Pharmacologica Japonica, 2002
L-Arginine has attracted major interest because it has been identified as the natural substrate of nitric oxide synthase and is now recognized as a major player in the regulation of biological function. The arginine paradox refers to the phenomenon that exogenous L-arginine causes NO-mediated biological effects despite the fact that nitric oxide ...
NAKAKI, Toshio, HISHIKAWA, Keiichi
openaire   +3 more sources

Arginine methylation in subunits of mammalian pre-mRNA cleavage factor I [PDF]

open access: yes, 2010
Mammalian cleavage factor I (CF Im) is composed of two polypeptides of 25 kDa and either a 59 or 68 kDa subunit (CF Im25, CF Im59, CF Im68). It is part of the cleavage and polyadenylation complex responsible for processing the 39 ends of messenger RNA ...
Antje Ostareck-Lederer   +26 more
core   +1 more source

Arginine Promotes the Expression of Aquaporin-3 and Water Transport in Porcine Trophectoderm Cells Through NO- and cAMP-Dependent Mechanisms

open access: yesFrontiers in Bioscience-Landmark, 2022
Background: Dietary supplementation with L-arginine (Arg) has been shown to increase the volume of fetal fluids in gestating swine. Aquaporins (AQPs), known as water channel proteins, are essential for embryonic growth and development.
Cui Zhu   +8 more
doaj   +1 more source

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