Results 141 to 150 of about 144,757 (372)

Profile of Nucleotides and Nucleosides in Taiwanese Human Milk

open access: yesPediatrics and Neonatology, 2011
Human milk–borne nucleotides and their related metabolic products have been reported to have important physiological roles in breast-fed infants. The purpose of this study was to measure the concentrations of free nucleotides and nucleosides in human ...
Kuo-Yu Liao   +5 more
doaj   +1 more source

Self assembly of a model multicellular organism resembling the Dictyostelium slime molds [PDF]

open access: yesarXiv, 2007
The evolution of multicellular organisms from monocellular ancestors represents one of the greatest advances of the history of life. The assembly of such multicellular organisms requires signalling and response between cells: over millions of years these signalling processes have become extremely sophisticated and refined by evolution, such that study ...
arxiv  

Incorporation of tritiated cytidine into ribonucleic acid by isolated pea nuclei [PDF]

open access: yes, 1962
A new method for the isolation of the nuclei from plant tissue has been devised. This method consists in passing the plant tissue through a set of spring-loaded, counter-rotating rollers and collecting the liberated nuclei in sucrose solution containing ...
Chipchase, Margaret I., Rho, Joon H.
core   +1 more source

QSCNAS: A platform for quorum sensing and quenching bacteria analysis in global wastewater treatment plants

open access: yesiMeta, EarlyView.
This study identifies the potential quorum sensing (QS) bacteria in wastewater treatment plants (WWTPs) and constructs a QS communication network through the establishment of a local QS bacterial database with six languages and the analysis of over 1000 activated sludge microbiome samples collected from 269 WWTPs.
Yong‐Chao Wang   +3 more
wiley   +1 more source

Shannon Capacity of Signal Transduction for Multiple Independent Receptors [PDF]

open access: yesarXiv, 2016
Cyclic adenosine monophosphate (cAMP) is considered a model system for signal transduction, the mechanism by which cells exchange chemical messages. Our previous work calculated the Shannon capacity of a single cAMP receptor; however, a typical cell may have thousands of receptors operating in parallel.
arxiv  

Differential chemosensitivity to antifolate drugs between RAS and BRAF melanoma cells. [PDF]

open access: yes, 2014
BACKGROUND: The importance of the genetic background of cancer cells for the individual susceptibility to cancer treatments is increasingly apparent.
Arozarena, Imanol   +5 more
core   +2 more sources

Leveraging core enzyme structures for microbiota targeted functional regulation: Urease as an example

open access: yesiMeta, EarlyView.
We present an innovative methodology that integrates core enzyme identification, protein structural characterization, regulator virtual screening, and functional validation to achieve precise microbiome functional regulation. As a proof of concept, we focused on the regulation of urea decomposition by the rumen microbiota in ruminants. This methodology
Shengguo Zhao   +9 more
wiley   +1 more source

cGMP interacts with tropomyosin and downregulates actin-tropomyosin-myosin complex interaction

open access: yesRespiratory Research, 2018
Background The nitric oxide-soluble guanylate cyclase-cyclic guanosine monophosphate (NO-sGC-cGMP) signaling pathway, plays a critical role in the pathogenesis of pulmonary arterial hypertension (PAH); however, its exact molecular mechanism remains ...
Lihui Zou   +7 more
doaj   +1 more source

Riociguat for the treatment of chronic thromboembolic pulmonary hypertension. [PDF]

open access: yes, 2013
BACKGROUND: Riociguat, a member of a new class of compounds (soluble guanylate cyclase stimulators), has been shown in previous clinical studies to be beneficial in the treatment of chronic thromboembolic pulmonary hypertension. METHODS: In this phase 3,
CHEST-1 Study Group,   +13 more
core   +1 more source

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

open access: yesBiosensors
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   +8 more
doaj   +1 more source

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