Results 51 to 60 of about 969,519 (271)

Quercetin and histamine effects of the content of superoxide anion and ATP in the blood plasma of rats

open access: yesБіологічні студії, 2023
Background. Histamine is one of the versatile biogenic amines with multiple roles in the immune response and allergic disorders. Histamine and ATP can act as ligands in the body.
Nataliya Harasym   +5 more
doaj   +1 more source

A KATP channel opener inhibited myocardial reperfusion action potential shortening and arrhythmias [PDF]

open access: yes, 2001
Low concentrations of certain K<sub>ATP</sub> channel openers have been reported to exert a moderate inhibitory effect on arrhythmias during post-ischaemic early myocardial reperfusion, but the accompanying effects on the time course of ...
Northover, B.J.   +5 more
core   +1 more source

Genome‐wide screen reveals a universal role of ATP in ciprofloxacin tolerance among genetically distinct Escherichia coli persisters

open access: yesmLife, Volume 5, Issue 2, Page 180-198, April 2026.
Abstract Bacterial persisters show tolerance to bactericidal antibiotics and play essential roles in chronic infections; however, the general mechanisms underlying persister formation and antibiotic tolerance remain insufficiently characterized. In this study, the Escherichia coli Keio library was used to identify genes involved in ciprofloxacin ...
Zhenfang Mei   +9 more
wiley   +1 more source

Characterization of the phosphotransacetylase-acetate kinase pathway for ATP production in Porphyromonas gingivalis

open access: yesJournal of Oral Microbiology, 2019
Acetyl phosphate (AcP) is generally produced from acetyl coenzyme A by phosphotransacetylase (Pta), and subsequent reaction with ADP, catalyzed by acetate kinase (Ack), produces ATP.
Yasuo Yoshida   +4 more
doaj   +1 more source

A Systematic Review of the Expression, Signalling and Function of P2 Receptors in Primary Bone Cancer

open access: yesFrontiers in Bioscience-Landmark, 2022
Primary bone cancers are rare malignant diseases with significant morbidity and mortality. The treatment regimen relies on a combination of surgery (often involving amputation), chemotherapy and radiotherapy with outcomes dependent on localization of the
Luke Tattersall   +5 more
doaj   +1 more source

Purinergic ATP‐P2X7 Signaling Drives Colonic Giant Migrating Contraction in Suncus murinus

open access: yesThe FASEB Journal, Volume 40, Issue 6, 31 March 2026.
Using Suncus murinus, this study reveals that ATP regulates colonic giant migrating contractions (GMCs). ATP activates P2X7 receptors on cholinergic neurons, triggering powerful contractions that facilitate defecation. This effect is suppressed by P2X7 receptor antagonists and atropine, identifying the ATP‐P2X7‐acetylcholine axis as a key regulatory ...
Ayano Gomi   +2 more
wiley   +1 more source

The Role of Heat Shock Protein 70 kDa in Asthma

open access: yesJournal of Asthma and Allergy, 2021
Marina Shevchenko,1 Ekaterina Servuli,1,2 Zarema Albakova,1,3 Leonid Kanevskiy,1 Alexander Sapozhnikov1,3 1Department of Immunology, Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia; 2Department of ...
Shevchenko M   +4 more
doaj  

Self‐Calibrating Ratiometric DNA Aptamer Probe for Quantitative ATP Imaging in Living Cells

open access: yesChemistry – A European Journal, Volume 32, Issue 11, 16 March 2026.
We developed the RFA–ECHO probe, an internally calibrated ATP sensor that remains responsive across millimolar ATP levels. Its self‐correcting Cy5/ECHO ratio ensures accurate quantification independent of probe uptake. Compared with FRET‐based sensors, it yields a robust ratiometric shift, distinguishing high‐ATP cancer cells from normal ones, enabling
Yunsong Xu   +5 more
wiley   +1 more source

Comportamento do sistema de aterramento de LDs 69 kV com estruturas de concreto sob descargas atmosféricas

open access: yesRevista Principia, 2013
Este trabalho analisa o comportamento do sistema de aterramento de Linhas de Distribuição de 69kV com estruturas de concreto dotadas de cabo para-raios quando submetidas a descargas atmosféricas. Neste estudo, foram modelados com a utilização do software
Antonio dos Santos Dália   +2 more
doaj   +1 more source

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