Results 21 to 30 of about 1,785 (203)

Plasmodium Infection Is Associated with Impaired Hepatic Dimethylarginine Dimethylaminohydrolase Activity and Disruption of Nitric Oxide Synthase Inhibitor/Substrate Homeostasis. [PDF]

open access: yes, 2015
Inhibition of nitric oxide (NO) signaling may contribute to pathological activation of the vascular endothelium during severe malaria infection. Dimethylarginine dimethylaminohydrolase (DDAH) regulates endothelial NO synthesis by maintaining homeostasis ...
Ackerman, H   +14 more
core   +3 more sources

A unique dual activity amino acid hydroxylase in Toxoplasma gondii [PDF]

open access: yes, 2009
The genome of the protozoan parasite Toxoplasma gondii was found to contain two genes encoding tyrosine hydroxylase; that produces L-DOPA. The encoded enzymes metabolize phenylalanine as well as tyrosine with substrate preference for tyrosine.
Gaskell, EA   +4 more
core   +1 more source

Inflammation and oxidative stress caused by nitric oxide synthase uncoupling might lead to left ventricular diastolic and systolic dysfunction in patients with hypertension [PDF]

open access: yes, 2018
K
Bodó, Imre   +13 more
core   +1 more source

Isolation and culture of murine bone marrow-derived macrophages for nitric oxide and redox biology [PDF]

open access: yes, 2020
Macrophages are mononuclear phagocytes derived from haematopoietic progenitors that are widely distributed throughout the body. These cells participate in both innate and adaptive immune responses and lie central to the processes of inflammation ...
Andrew Shaw   +37 more
core   +1 more source

Disorders of biopterin metabolism [PDF]

open access: yesJournal of Inherited Metabolic Disease, 2009
SummaryDefects in the metabolism or regeneration of tetrahydrobiopterin (BH4) were initially discovered in patients with hyperphenylalaninaemia who had progressive neurological deterioration despite optimal metabolic control (malignant hyperphenylalaninaemia).
openaire   +2 more sources

An Efficient Synthesis of 2'-O-(β-D-Ribofuranosyl)biopterin [PDF]

open access: yes, 2008
N(2)-(N,N-Dimethylaminomethylene)-3-[2-(4-nitrophenyl)ethyl]-1',2'-di-O (trimethylsilyl)biopterin (4) was prepared from biopterin (1a, 86% overall yield) in 5 steps. Glycosylation of 4 with 1,2,3,5-tetra-O-acetyl-β D-ribofuranose (5a) and its 2,3,5-tri-O-
Fujita, Hiroshi   +5 more
core   +1 more source

Tetrahydro‐6‐biopterin is associated with tetrahydro‐7‐biopterin in primary murine mast cells [PDF]

open access: yesFEBS Letters, 1992
Murine bone marrow‐derived mast cells proliferate in response to interleukin 3. In addition to 6‐biopterin, 7‐biopterin was identified in these cells by HPLC analysis of iodine oxidized extracts and by alkaline permanganate oxidation to the 6‐ and 7‐carboxylic acids. 7‐Biopterin comprised 31.9 (± 7.7)% of the total biopterin.
Ziegler, Irmgard, Hültner, Lothar
openaire   +2 more sources

Effects of endothelin-1 on intracellular tetrahydrobiopterin levels in vascular tissue [PDF]

open access: yes, 2018
Objective: Tetrahydrobiopterin (BH4) is the essential cofactor of endothelial nitric oxide synthase (eNOS) and intracellular levels of BH4 is regulated by oxidative stress.
Antoniades, Charalambos   +6 more
core   +2 more sources

Protein inhibitor of NOS1 plays a central role in the regulation of NOS1 activity in human dilated hearts [PDF]

open access: yes, 2016
An essential factor for the production of nitric oxide by nitric oxide synthase 1 (NOS1), major modulator of cardiac function, is the cofactor tetrahydrobiopterin (BH4).
Carnicer, Ricardo   +8 more
core   +2 more sources

Activation of cGMP/Protein Kinase G Pathway in Postconditioned Myocardium Depends on Reduced Oxidative Stress and Preserved Endothelial Nitric Oxide Synthase Coupling [PDF]

open access: yes, 2013
Altres ajuts: Redes Temáticas de Investigación Cooperativa Sanitaria (RETICS-RECAVA RD06/0014/0025); Comisión Interministerial en Ciencia y Tecnología (CICYT SAF/2008-03067); and Fondo Investigación Sanitaria (FIS-PI121738).The cGMP/protein kinase G (PKG)
Abad, Elena   +6 more
core   +1 more source

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