Results 51 to 60 of about 29,622 (225)

Increased CD39 nucleotidase activity on microparticles from patients with idiopathic pulmonary arterial hypertension. [PDF]

open access: yesPLoS ONE, 2012
BACKGROUND:Idiopathic pulmonary arterial hypertension (IPAH) is a devastating disease characterized by increased pulmonary vascular resistance, smooth muscle and endothelial cell proliferation, perivascular inflammatory infiltrates, and in situ ...
Scott H Visovatti   +5 more
doaj   +1 more source

A neutrophil-dependent pathway for the generation of a neutral peptide mediator: partial characterization of components and control by alpha-1-antitrypsin. [PDF]

open access: yes, 1974
A biologically active neutral peptide mediator is cleaved from a plasma protein substrate by an alpha-1-antitrypsin-inhibitable serine protease apparently residing on the membrane of the human neutrophil. The peptide mediator has an approximate mol wt of
Austen, KF, Goetzl, EJ, Wintroub, BU
core  

Snake Venomics and Antivenomics of Bothrops diporus, a Medically Important Pitviper in Northeastern Argentina [PDF]

open access: yes, 2015
Snake species within genus Bothrops are responsible for more than 80% of the snakebites occurring in South America. The species that cause most envenomings in Argentina, B.
Calvete, Juan J.   +3 more
core   +2 more sources

The Characterization of Escherichia coli CpdB as a Recombinant Protein Reveals that, besides Having the Expected 3´-Nucleotidase and 2´,3´-Cyclic Mononucleotide Phosphodiesterase Activities, It Is Also Active as Cyclic Dinucleotide Phosphodiesterase. [PDF]

open access: yesPLoS ONE, 2016
Endogenous cyclic diadenylate phosphodiesterase activity was accidentally detected in lysates of Escherichia coli BL21. Since this kind of activity is uncommon in Gram-negative bacteria, its identification was undertaken.
Iralis López-Villamizar   +6 more
doaj   +1 more source

Activity-dependent release of Adenosine: a critical re-evaluation of mechanism [PDF]

open access: yes, 2008
Adenosine is perhaps the most important and universal modulator in the brain. The current consensus is that it is primarily produced in the extracellular space from the breakdown of previously released ATP.
Wall, Mark J., Dale, Nicholas
core   +1 more source

Inosine‐Triphosphate‐Pyrophosphatase Activity as a Potential Predictor of Methotrexate Remission in Juvenile Idiopathic Arthritis

open access: yesArthritis &Rheumatology, EarlyView.
Objective Methotrexate (MTX) is the first‐line therapy for juvenile idiopathic arthritis (JIA), but up to 40% of patients do not respond to it. Low inosine triphosphate pyrophosphatase (ITPA) activity has been associated with reduced clinical remission. We investigated the role and underlying mechanisms of ITPA in vitro. Methods ITPA enzymatic activity
Sofia Sindici Forgiarini   +19 more
wiley   +1 more source

A nucleotide metabolite controls stress-responsive gene expression and plant development.

open access: yesPLoS ONE, 2011
Abiotic stress, such as drought and high salinity, activates a network of signaling cascades that lead to the expression of many stress-responsive genes in plants. The Arabidopsis FIERY1 (FRY1) protein is a negative regulator of stress and abscisic acid (
Hao Chen   +3 more
doaj   +1 more source

Leishmania mexicana amazonensis: heterogeneity in 5-nucleotidase and peroxidase activities of mononuclear phagocytes during in vivo and in vitro infection Leishmania mexicana amazonensis: heterogeneidade da 5’-Nucleotidase e da peroxidase em fagócitos mononucleares durante infecção in vivo e in vitro

open access: yesMemorias do Instituto Oswaldo Cruz, 1988
The degree of maturation of cells of the Mononuclear Phagocyte System (MPS), during in vivo and in vitro infection by Leishmania mexicana amazonenesis, was evaluated in this study.
Suzana Côrte-Real   +2 more
doaj   +1 more source

Synergistic Effect of Hesperidin, Acarbose, and Exercise Combination on Neuroinflammation and Neurochemical Alterations in Diabetic Encephalopathy Rat Model

open access: yesFood Chemistry International, EarlyView.
Diabetic encephalopathy (DME) impairs neurobehavior, neurochemicals, oxidative stress, and inflammation. This study evaluated the effects of hesperidin (HSP), exercise (EX), and acarbose (ACA) alone or combined on diabetic rats. Treatments reduced AChE, BChE, ACE, arginase, ATPDase, 5′‐nucleotidase, ADA, LDH, TBARS, and ROS, while increasing IL‐10, SOD,
Idowu Sunday Oyeleye   +5 more
wiley   +1 more source

Mechanism of nitrogen metabolism-related parameters and enzyme activities in the pathophysiology of autism

open access: yesJournal of Neurodevelopmental Disorders, 2012
Background There is evidence that impaired metabolism play an important role in the etiology of many neuropsychiatric disorders. Although this has not been investigated to date, several recent studies proposed that nitrogen metabolism-related parameters ...
Abu Shmais Ghada A   +3 more
doaj   +1 more source

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