Results 51 to 60 of about 56,467 (252)

Purines, Purinergic Receptors, and Cancer [PDF]

open access: yesCancer Research, 2012
AbstractPurines were long thought to be restricted to the intracellular compartment, where they are used for energy transactions, nucleic acid synthesis, and a multiplicity of biochemical reactions. However, it is now clear that both adenosine and adenosine triphosphate are (i) abundant biochemical components of the tumor microenvironment, (ii) potent ...
openaire   +3 more sources

Purinergic signaling via P2X receptors and mechanisms of unregulated ATP release in the outer retina and age-related macular degeneration

open access: yesFrontiers in Neuroscience, 2023
Age-related macular degeneration (AMD) is a chronic and progressive inflammatory disease of the retina characterized by photoceptor loss and significant central visual impairment due to either choroidal neovascularization or geographic atrophy.
Haydn Molcak   +3 more
doaj   +1 more source

Diabetes-induced alterations in urothelium function:Enhanced ATP release and nerve-evoked contractions in the streptozotocin rat bladder [PDF]

open access: yes, 2018
Up to 80% of patients with diabetes mellitus develop lower urinary tract complications, most commonly diabetic bladder dysfunction (DBD). The aim of this study was to investigate the impact of diabetes on the function of the inner bladder lining ...
Apodaca   +56 more
core   +1 more source

Dual Action of Dipyridamole in Experimental Rheumatoid Arthritis: Suppression of Joint Inflammation and Upregulation of Muscle Anabolism via Adenosine and AMPK Pathways

open access: yesArthritis &Rheumatology, EarlyView.
Objective Rheumatoid sarcopenia, characterized by the progressive loss of skeletal muscle mass and function, is a frequent comorbidity in rheumatoid arthritis (RA), linked to prolonged, severe systemic inflammation. Purinergic signaling (adenosine, AMP, and ATP) plays a crucial role in inflammation, myogenesis, and muscle hypertrophy.
Miguel Marco‐Bonilla   +13 more
wiley   +1 more source

Activation of adenosine A2B receptors enhances ciliary beat frequency in mouse lateral ventricle ependymal cells

open access: yesCerebrospinal Fluid Research, 2009
Background Ependymal cells form a protective monolayer between the brain parenchyma and cerebrospinal fluid (CSF). They possess motile cilia important for directing the flow of CSF through the ventricular system.
Ravid Katya   +3 more
doaj   +1 more source

Transient signal generation in a self-assembled nanosystem fueled by ATP [PDF]

open access: yes, 2015
A fundamental difference exists in the way signal generation is dealt with in natural and synthetic systems. While nature uses the transient activation of signalling pathways to regulate all cellular functions, chemists rely on sensory devices that ...
Pezzato, Cristian, Prins, LEONARD JAN
core   +2 more sources

Clock genes regulate Ca2+ signaling and mitochondrial bioenergetics to inhibit Sjogren's disease

open access: yesArthritis &Rheumatology, Accepted Article.
Objective Although Ca2+ signaling and metabolism have been identified as key determinants for the development of Sjogren's disease (SjD), the intricate connection between them and salivary gland physiology remains poorly understood. Methods Fluorescence‐based Ca2+ imaging, RNA seq, and mitochondrial activity were used to investigate the effects of ...
Viktor R. Drel   +12 more
wiley   +1 more source

Regional differences in store-operated Ca2+ entry in the epithelium of the intact human lens [PDF]

open access: yes, 2009
An elevated level of Ca2+ is an important factor in cataract, yet precisely how Ca2+ enters the lens is unknown. Lens epithelial cells contain a range of G-protein–coupled receptors and receptor tyrosine kinases that induce increases in intracellular Ca2+
Duncan, George   +4 more
core   +1 more source

Radioligands targeting purinergic P2X7 receptor [PDF]

open access: yesBioorganic & Medicinal Chemistry Letters, 2020
The purinergic P2X7 receptor (P2X7R) is an adenosine triphosphate (ATP) ligand-gated cationic channel receptor. P2X7R is closely associated with various inflammatory, immune, cancer, neurological, musculoskeletal and cardiovascular disorders. P2X7R is an interesting therapeutic target as well as molecular imaging target.
openaire   +2 more sources

The 3‐Hit Metabolic Signaling Model for Autism Spectrum Disorder: A Summary

open access: yesAutism Research, EarlyView.
ABSTRACT Autism spectrum disorder (ASD) is a highly heritable yet environmentally sensitive neurodevelopmental condition whose biological heterogeneity has resisted a unifying causal explanation for over 100 years. The 3‐hit metabolic signaling model proposes that ASD arises from abnormal persistence of an evolutionarily conserved stress‐response ...
Robert K. Naviaux
wiley   +1 more source

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