Results 121 to 130 of about 165,669 (302)

Vasoreactivity as a Measure of Kidney Viability During Ex Vivo Normothermic Machine Perfusion

Artificial Organs, EarlyView.
This study aimed to investigate the influence of warm ischemic injury on renal vascular responsiveness to vasoactive drugs during normothermic machine perfusion (NMP). We found that the vascular responses to dopamine and norepinephrine could be used as objective indicators to assess kidney viability during NMP.
Isa M. van Tricht, Baran Ogurlu, Silke S. M. Wolfswinkel, Henri G. D. Leuvenink, Cyril Moers   +4 more
wiley   +1 more source

Kinetics of the template-directed oligomerization of guanosine 5'-phosphate-2-methylimidazolide: Effect of temperature on individual steps of reactionion [PDF]

Non-enzymatic, template-directed reactions have been proposed as models for prebiological polynucleotide synthesis. Chemically activated mononucleotides react in the presence of a polynucleotide, acting as the template in a Watson-Crick base-pairing ...
Alberas, D. J., Bernasconi, C. F., Kanavarioti, A.   +2 more
core   +1 more source

Medical Gases as Emerging Regulators of Paediatric Endocrine and Neurodevelopmental Pathways: A Mini‐Review

Acta Paediatrica, EarlyView.
ABSTRACT Aim Medical gases, including nitric oxide, carbon monoxide, hydrogen sulphide and molecular hydrogen, have emerged as key regulators of redox balance and cellular signalling. This mini‐review examines their relevance to paediatric endocrine and neurodevelopmental pathways, domains particularly sensitive to oxidative and inflammatory ...
Roberto Paparella, Fabiola Panvino, Ida Pucarelli, Luigi Tarani   +3 more
wiley   +1 more source

Surface-enhanced Raman Scattering Enhancement Factors for RNA Mononucleotides on Silver Nanoparticles

Croatica Chemica Acta, 2015
Surface-enhanced Raman scattering (SERS) enhancement factors (EF) were evaluated for RNA mononucleotides: adenosine 5'-monophosphate (AMP), guanosine 5'-monophosphate (GMP), cytidine 5'-monophosphate (CMP) and uridine 5'-monophosphate (UMP), on silver ...
Snežana Miljanić, Marina Ratkaj, Igor Avdejev, Karlo Meglić, Adriana Kenđel   +4 more
doaj   +1 more source

Compartmentalisation in cAMP signalling: A phase separation perspective

British Journal of Pharmacology, EarlyView.
Cells rely on precise spatiotemporal control of signalling pathways to ensure functional specificity. The compartmentalisation of cyclic AMP (cAMP) and protein kinase A (PKA) signalling enables distinct cellular responses within a crowded cytoplasmic space.
Milda Folkmanaite, Manuela Zaccolo
wiley   +1 more source

Cyclic Guanosine 3′ ,5′-Monophosphate and Gallbladder Contraction

Gastroenterology, 1974
Cholecystokinin, acetylcholine, and oxymetazoline stimulated guanylyl cyclase activity in rabbit gallbladder. Cholecystokinin and acetylcholine also raised the intracellular levels of cyclic guanosine monophosphate in that tissue. The rise in intracellular cyclic guanosine monophosphate preceded and could mediate both the cholecystokinin- and ...
openaire   +2 more sources

Non‐canonical PKG1 regulation in cardiovascular health and disease

British Journal of Pharmacology, EarlyView.
It is well established that the cyclic GMP‐dependent protein kinase I (PKG1) is canonically activated by cyclic guanosine monophosphate (cGMP), enabling its regulation of vascular tone, cardiac function and smooth muscle homeostasis. However, diverse non‐canonical stimuli of PKG1 have also been identified.
Jie Su, Joseph Robert Burgoyne
wiley   +1 more source

New biosensors and transgenic mice for multiplex cGMP imaging

British Journal of Pharmacology, EarlyView.
Background and Purpose Cyclic guanosine monophosphate (cGMP) is a versatile second messenger that is important for human (patho‐)physiology and pharmacotherapy. Live‐cell imaging of cGMP with biosensors allows to elucidate its spatiotemporal dynamics in real time under close‐to‐native conditions. However, to monitor two separate cGMP pools or cGMP/cAMP
Markus Wolters, Martin Thunemann, Barbara Birk, Susanne Feil, Viacheslav O. Nikolaev, Moritz Lehners, Robert Feil   +6 more
wiley   +1 more source

The Construction and Application of a New Screening Method for Phosphodiesterase Inhibitors

Biosensors
Phosphodiesterases (PDEs), a superfamily of enzymes that hydrolyze cyclic adenosine monophosphate (cAMP) and cyclic guanosine monophosphate (cGMP), are recognized as a therapeutic target for various diseases.
Chunhua Gao, Zhe Wang, Xiaojing Liu, Rongzhen Sun, Shengyao Ma, Zongchen Ma, Qi Wang, Guoqiang Li, Han-Ting Zhang   +8 more
doaj   +1 more source

An intracellular recombinant single‐chain variable antibody fragment as a new class of phosphodiesterase type 5 inhibitors

British Journal of Pharmacology, EarlyView.
Background and Purpose Cyclic guanosine monophosphate (cGMP) is a ubiquitous second messenger involved in human (patho‐)physiology. Phosphodiesterase 5 (PDE5) is a major cGMP hydrolyzing enzyme in many cell types including vascular smooth muscle cells (VSMCs). Several highly selective PDE5 inhibitors are in clinical use. However, there are currently no
Kürsat Kirkgöz, Sophie Sprenger, Olga Schweigert, Sanika Mohagaonkar, Matti Walsdorff, Tanja Zeller, Filip Berisha, Viacheslav O. Nikolaev, Sergei D. Rybalkin   +8 more
wiley   +1 more source