Results 211 to 220 of about 68,942 (307)

Metabolic Assessment in Human Pluripotent Stem Cell‐Derived Cerebral Organoids Using HR‐MAS NMR Spectroscopy

open access: yesNMR in Biomedicine, Volume 39, Issue 8, August 2026.
We present a direct method for evaluating metabolism in intact hPSC‐derived cerebral organoids (COs) via HR‐MAS 1H‐NMR spectroscopy. This approach suggests that COs exhibit a metabolic profile similar to in vivo human fetal brain, with high levels of lactate and hTau, low levels of NAA, and equimolar levels of Glu and Gln.
Maria Alejandra Castilla Bolanos   +9 more
wiley   +1 more source

Gel-Based NMR Method for Observing Submicrosecond Protein Dynamics at Atomic Resolution. [PDF]

open access: yesJ Phys Chem Lett
Xiang X   +4 more
europepmc   +1 more source

Establishment of a Purge and Trap Continuous‐Flow Isotope Ratio Mass Spectrometer System for Analysis of Stable Nitrate Isotopes (δ15N and δ18O) in Water Samples by Ti(III) Reduction

open access: yesRapid Communications in Mass Spectrometry, Volume 40, Issue 14, 30 July 2026.
ABSTRACT Rationale Pollution of surface and shallow groundwater by nitrate (NO3−$$ {\mathrm{NO}}_3^{-} $$) is a global concern, resulting in the deterioration of drinking water quality. Stable isotopes of NO3−$$ {\mathrm{NO}}_3^{-} $$ (δ15N and δ18O) can be used to trace its sources and identify prevailing biogeochemical processes.
Monis Nolitha Gcakasi   +2 more
wiley   +1 more source

Seafood Abundance Correlates With Nitrogen Stable Isotope Ratio in Japanese Diet

open access: yesRapid Communications in Mass Spectrometry, Volume 40, Issue 13, 15 July 2026.
ABSTRACT Rationale Carbon and nitrogen stable isotope ratios (δ13C and δ15N) of whole diet have rarely been measured to date though the isotope ratios in human sample have been extensively used for diet and nutritional researches. In order to fully validate the isotope dietary analysis, association between quantitative information on diet composition ...
Jun Yoshinaga, Ryuta Oyama
wiley   +1 more source

Dual-site phosphorylation of SLX4 stabilizes the SLX4-MUS81 interface to promote mitotic SMX assembly and genome protection. [PDF]

open access: yesNucleic Acids Res
Payliss BJ   +8 more
europepmc   +1 more source

Spectroscopic Investigation of the In Vivo Light‐Dependent Photodynamics of the Marine Diatom Phaeodactylum tricornutum

open access: yesChemPhysChem, Volume 27, Issue 13, 14 July 2026.
µm fourier transform infrared (FTIR) image, 442 nm Raman of the Si–O of the silica‐based frustule at 472 cm−1, and UV–vis of Phaeodactylum tricornutum cells. Marine diatoms are responsible for fixing CO2 into organic carbon and contribute to the regulation of global climate.
Constantinos Varotsis   +10 more
wiley   +1 more source

Evaluation of CSF and plasma tau species as fluid surrogate candidates for tau PET in prodromal to moderate Alzheimer's disease

open access: yesAlzheimer's &Dementia, Volume 22, Issue 7, July 2026.
Abstract INTRODUCTION Positron emission tomography (PET) is a valuable tool for assessing tau pathology in Alzheimer's disease (AD), but it is not widely accessible. Clarifying the relationship between fluid tau species and tau PET in AD may allow for the identification of fluid biomarkers that could serve as more accessible surrogates for tau PET ...
Julie Lee   +20 more
wiley   +1 more source

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