Results 61 to 70 of about 8,158 (274)

Leishmania donovani's protein tyrosine phosphatases interact with DUF21 and respond to environmental magnesium

open access: yesThe FEBS Journal, EarlyView.
The Leishmania phosphatase PTP1, and possibly the genetically similar PTP2, interacts with the Leishmania transmembrane protein DUF21. When both ptp1 and ptp2 are knocked out of Leishmania (LdΔPTP1/2), the parasite can no longer survive without magnesium in vitro and has reduced viability in the host macrophage. Conversely, in duf21 knockout (LdΔDUF21),
Kayla Paulini   +6 more
wiley   +1 more source

Plasma Nitrate and Pteridine Levels in Experimental Bacteremia in Baboons

open access: yesPteridines, 1995
Using a recently developed model of bacterially induced sepsis in baboons, we studied the time courses of pteridine and nitrate levels in plasma with regard to the dose of Escherichia coli. Eight animals were given a 2 h infusion of 2X 10" Colony Forming
Strohmaier Wolfgang   +4 more
doaj   +1 more source

First Synthesis of Asperopterin A, an Isoxanthopterin Glycoside from Aspergillus Oryzae [PDF]

open access: yes, 2013
The key precursor, N-2-(N,N -dimethylaminomethylene)-6-hydroxymethyl-8-methyl-3-[2-(4-nitrophenyl)ethyl]-7-xanthopterin (16) was efficiently prepared from 2,5-diamino-6-methylamino-3H-pyrimidin-4-one (5) and ethyl 3-(tert-butyldimethylsilyloxy)-2 ...
Hanaya, Tadashi, Yamamoto, Hiroshi
core   +1 more source

Further Insights Into Anticholinergic Action Informed by Japanese Anticholinergic Risk Scale

open access: yesGeriatrics &Gerontology International, EarlyView.
ABSTRACT The increased anticholinergic burden caused by medications in older adults is one of the adverse drug reactions of particular concern, as it can exacerbate the onset of geriatric syndromes or induce cognitive dysfunction, and is also related to the issue of polypharmacy.
Masaki Mogi   +4 more
wiley   +1 more source

Assessment of Metabolic Parameters For Autism Spectrum Disorders [PDF]

open access: yes, 2009
Autism is a brain development disorder that first appears during infancy or childhood, and generally follows a steady course without remission. Impairments result from maturation-related changes in various systems of the brain.
Ghosh, S   +4 more
core  

Exploring the scope of DBU-promoted amidations of 7-carboxymethyl-pterin [PDF]

open access: yes, 2020
Pteridines are an important heterocycle often used in the development of pharmaceutically relevant compounds, and in the field of supramolecular chemistry.
Bockman, Anna
core   +1 more source

Genome‐Wide Protein Interaction Analysis in Parasitic Gyrodactylus Flatworms–Fish Hosts System and Drug Target Identification

open access: yesAdvanced Science, Volume 12, Issue 45, December 4, 2025.
Genomic data offer a powerful tool for studying the molecular interactions between parasites and their hosts, but they remain scarce for parasitic monogenean flatworms. This study presents the first high‐quality phased genome assembly for monogeneans (Gyrodactylus kobayashii), and uses it to predict key interacting proteins between monogenean parasite ‐
Dong Zhang   +17 more
wiley   +1 more source

Protective effects of (6R)-5,6,7,8-tetrahydro-l-biopterin on local ischemia/reperfusion-induced suppression of reactive hyperemia in rat gingiva

open access: yesJournal of clinical biochemistry and nutrition, 2015
We herein investigated the regulatory mechanism in the circulation responsible for rat gingival reactive hyperemia (RH) associated with ischemia/reperfusion (I/R). RH was analyzed using a laser Doppler flowmeter.
Y. Tanaka   +12 more
semanticscholar   +1 more source

Exposure to Helicobacter pylori and Serum Kynurenine to Tryptophan Ratio in Patients with Gastric Cancer

open access: yesPteridines, 2010
In Helicobacter pylori seropositive individuals, the subsequent risk of non-cardia gastric cancer development is frequently attributed to the infection agent. Although the link between inflammation and gastric cancer is formally recognized, the molecular
Engin Ayse Basak   +3 more
doaj   +1 more source

Consensus Guideline for the Diagnosis and Treatment of Tyrosine Hydroxylase (TH) Deficiency

open access: yesJournal of Inherited Metabolic Disease, Volume 48, Issue 6, November 2025.
ABSTRACT Tyrosine hydroxylase (TH) catalyses the rate‐limiting step in dopamine biosynthesis. Autosomal recessive tyrosine hydroxylase deficiency (THD) leads to clinical phenotypes reflecting the deficiency of dopamine, norepinephrine, or epinephrine in the central nervous system (CNS), presenting along a continuous spectrum from mild to severe forms ...
Mariya Sigatullina Bondarenko   +41 more
wiley   +1 more source

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