Results 81 to 90 of about 37,366 (283)

Heme‐NO Dilates Arteries via Mobilization of NO Moieties From an Intracellular NO Store Within Vascular Smooth Muscle Cells

open access: yesAdvanced Science, EarlyView.
Nitrosyl heme emerges as an extracellular nitrodilator that dilates arteries without crossing the cell membrane. Instead, heme‐NO mobilizes NO moieties from a preformed intracellular NO store within vascular smooth muscle, providing both functional and chemical evidence for the NANOS model, revealing a previously unrecognized mechanism of arterial ...
Taiming Liu   +9 more
wiley   +1 more source

Seawater oxygen isotopes of the Portuguese margin

open access: yes, 2017
Seawater oxygen isotopes of the Portuguese ...
Voelker, Antje H L   +9 more
core   +1 more source

Seawater oxygen isotopes as a tool for monitoring future meltwater from the Antarctic ice-sheet

open access: yesCommunications Earth & Environment
To reduce uncertainties in future sea level projections, it is necessary to closely monitor the evolution of the Antarctic ice-sheet. Here, we show that seawater oxygen isotopes are an effective tool to monitor ice-sheet freshwater discharge and its ...
Hyuna Kim, Axel Timmermann
doaj   +1 more source

PET Imaging of Cardiac Inflammation in Viral Myocarditis Using a DPP4‐Targeted Probe

open access: yesAdvanced Science, EarlyView.
This study describes a DPP4‐targeted PET probe for imaging myocardial inflammation by selectively targeting activated immune cells. Derived from the clinically approved small‐molecule inhibitor linagliptin, the probe demonstrates favorable biodistribution with specific cardiac uptake in myocarditis.
Wanhao Gao   +14 more
wiley   +1 more source

An oxygen isotope record of lacustrine opal from a European Maar indicates climatic stability during the Last Interglacial

open access: yes, 2001
The penultimate temperate period, 127–110 ka before present (BP), bracketed by abrupt shifts of the global climate system initiating and terminating it, is considered as an analogue of the Holocene because of a similar low global ice‐volume.
Rietti-Shati, M   +7 more
core  

Short-term fate of phytodetritus in sediments across the Arabian Sea Oxygen Minimum Zone [PDF]

open access: yes, 2007
The short-term fate of phytodetritus was investigated across the Pakistan margin of the Arabian Sea at water depths ranging from 140 to 1850 m, encompassing the oxygen minimum zone (~100–1100 m).
Middelburg, J.J.   +19 more
core   +1 more source

Mapping oxygen stable isotopes of precipitation in Italy

open access: yesJournal of Hydrology: Regional Studies, 2016
Study region: Italy. Study focus: The oxygen isotope composition from 266 pluviometers was used to study the spatial variability of δ18O and its relationship with Italian orography. The local meteoric water lines (LMWLs) of northern, southern and central
Francesca Giustini   +2 more
doaj   +1 more source

Enhanced Glycolysis‐Driven Histone H3K18 Lactylation Regulates Epileptogenesis by Modulating the E3 Ubiquitin Ligase COP1

open access: yesAdvanced Science, EarlyView.
Neuronal PKM2‐driven glycolysis generates excess lactate that triggers histone H3K18 lactylation (H3K18la), establishing a pathogenic metabolic‐epigenetic axis in epilepsy. Elevated H3K18la enriches the Cop1 promoter, transcriptionally upregulating the E3 ubiquitin ligase COP1, which subsequently drives proteasomal degradation of GABAARβ2 and impairs ...
Yuan Meng   +8 more
wiley   +1 more source

Cross Kingdom Metabolic Engineering Paradigm Elevating Sustainable Protein Production

open access: yesAdvanced Science, EarlyView.
ABSTRACT Confronting the dual crisis of escalating global protein demand and unsustainable agriculture necessitates transformative solutions. Here, we pioneer evolutionary insights from maize nitrogen optimization via asparagine synthetase (ASNS) to rewire metabolism in Pichia pastoris.
Yuanyuan Du   +4 more
wiley   +1 more source

Nitrogen Isotopes in the Global Ocean [PDF]

open access: yes, 2013
Nitrogen is an essential nutrient for life. Its low abundance throughout much of the sunlit surface ocean limits the growth of primary producers that form the base of ocean ecosystems.
Somes, Christopher J.   +1 more
core  

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