Results 71 to 80 of about 259,913 (336)

Automatic bio-sample bacteria detection system [PDF]

open access: yes, 1971
Electromechanical device analyzes urine specimens in 15 minutes and processes one sample per minute. Instrument utilizes bioluminescent reaction between luciferase-luciferin mixture and adenosine triphosphate (ATP) to determine number of bacteria present
Chappelle, E. W.   +3 more
core   +1 more source

Long-term (trophic) purinergic signalling: purinoceptors control cell proliferation, differentiation and death [PDF]

open access: yes, 2010
The purinergic signalling system, which uses purines and pyrimidines as chemical transmitters, and purinoceptors as effectors, is deeply rooted in evolution and development and is a pivotal factor in cell communication.
A Gartland   +139 more
core   +2 more sources

Photonic Nanomaterials for Wearable Health Solutions

open access: yesAdvanced Materials, EarlyView.
This review discusses the fundamentals and applications of photonic nanomaterials in wearable health technologies. It covers light‐matter interactions, synthesis, and functionalization strategies, device assembly, and sensing capabilities. Applications include skin patches and contact lenses for diagnostics and therapy. Future perspectives emphasize AI‐
Taewoong Park   +3 more
wiley   +1 more source

Role of P2X7 on steroid synthesis in murine luteal cells

open access: yesBiotechnology & Biotechnological Equipment, 2016
The extracellular adenosine triphosphate (ATP) regulates different cellular functions through activating purinergic receptors as a signalling molecule or neurotransmitter. P2X7 is highly expressed in murine small luteal cells.
Chunping Zhang   +6 more
doaj   +1 more source

Adenosine-Sensitive Focal Reentrant Atrial Tachycardia Originating From the Mitral Annulus-Aorta Junction

open access: yesJournal of Arrhythmia, 2008
Adenosine-sensitive reentrant atrial tachycardia (AT) has been recognized to originate from the confined area of either the right or left atiroventricular nodal regions.
Itsuro Morishima, MD   +4 more
doaj   +1 more source

Platelet-derived adenosine 5′-triphosphate suppresses activation of human hepatic stellate cell: In vitro study [PDF]

open access: yes, 2011
Keywords: adenosine; adenosine 5′-triphosphate; cyclic adenosine 5′-monophosphate; hepatic stellate cell; liver fibrosisAim:  Activated hepatic stellate cells (HSC) play a critical role in liver fibrosis.
Fukunaga Kiyoshi   +16 more
core   +1 more source

Mussel‐Inspired Molecular Strategies for Fabricating Functional Materials With Underwater Adhesion and Self‐Healing Properties

open access: yesAdvanced Materials, EarlyView.
This review systematically examines the nanomechanical mechanisms of mussel‐inspired molecular interactions, primarily investigated by direct force measurement techniques such as surface forces apparatus and atomic force microscopy. The macroscopic adhesive and self‐healing performances of mussel‐inspired functional materials, including coacervates ...
Pan Huang, Hongjian Zhang, Hongbo Zeng
wiley   +1 more source

Bone marrow-derived mesenchymal stem cells ameliorate sodium nitrite-induced hypoxic brain injury in a rat model

open access: yesNeural Regeneration Research, 2017
Sodium nitrite (NaNO2) is an inorganic salt used broadly in chemical industry. NaNO2 is highly reactive with hemoglobin causing hypoxia. Mesenchymal stem cells (MSCs) are capable of differentiating into a variety of tissue specific cells and MSC therapy ...
Elham H.A. Ali   +2 more
doaj   +1 more source

Adenosine accumulation in the blood of newborn mice weakens antimicrobial host defenses [PDF]

open access: yes
Pediatric intensive care patients are particularly susceptible to severe bacterial infections because of ineffective neutrophil responses. The reasons why neutrophils of newborns are less responsive than those of adults are not clear.
Abutabikh, Reem   +6 more
core   +1 more source

Purinergic receptor mediated calcium signalling in urothelial cells [PDF]

open access: yes, 2019
Non-neuronal ATP released from the urothelium in response to bladder stretch is a key modulator of bladder mechanosensation. Whilst non-neuronal ATP acts on the underlying bladder afferent nerves to facilitate sensation, there is also the potential for ...
Brierley, Stuart M   +4 more
core   +3 more sources

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