Results 191 to 200 of about 327,817 (261)

Bioconversion of β-carotene to vitamin A across life stages using stable isotope methodologies: a protocol for the systematic review. [PDF]

Syst Rev
Frane RD, Lat HT, Semilla JJL, Diaz JMS, Zumaraga MPP.   +4 more
europepmc   +1 more source

Short‐Term 6PPD‐Q Exposure alters Tight‐Junction‐Related Gene Expression Without Acute Lethality in Japanese Medaka Oryzias latipes

Journal of Applied Toxicology, EarlyView.
ABSTRACT 6PPD‐quinone (6PPD‐Q), a transformation product of the tire antioxidant 6PPD, causes acute mortality in several salmonid species, but its toxicity varies markedly among fish species. Disruption of vascular‐barrier integrity and inflammatory signaling has been proposed as a key mechanism of 6PPD‐Q toxicity.
Kyoshiro Hiki
wiley   +1 more source

Honey Fraud as a Moving Analytical Target: Omics-Informed Authentication Within a Multi-Layer Analytical Framework. [PDF]

Foods
Schoder D.
europepmc   +1 more source

Corticosterone and Mitochondrial Efficiency Are Associated With Changes in DNA Oxidative Damage During an Acute Stress Response in Leach's Storm‐Petrels (Hydrobates leucorhous)

Journal of Experimental Zoology Part A: Ecological and Integrative Physiology, EarlyView.
ABSTRACT The ability of organisms to effectively respond to challenges is critical for survival. We investigated how an acute stressor affected corticosterone, mitochondrial function, and DNA oxidative damage in a wild population of Leach's storm‐petrels (Hydrobates leucorhous).
Kayla E. Lichtner, Jack K. Dziubek, Nicole A. Joseph, Sarah E. Chapman, Tori J. Chace, Dongxiao Sun, Zachary T. Bitzer, Antoine Stier, Robert A. Mauck, Patricia L. Jones, Mark F. Haussmann   +10 more
wiley   +1 more source

Coupled sulfur-silicon isotopes reveal supracrustal origin of Archean continents. [PDF]

Nat Commun
Shang K, Zhang J, Wang Z, Cawood I, Cui Y, Li M, Chang R, Shen Y, Zhao G.   +8 more
europepmc   +1 more source

Leveraging Isomerization of Azo Dyes and Imines for the Facile Synthesis of Oxadiazepines and Related Heterocycles

Journal of Heterocyclic Chemistry, EarlyView.
A robust method for synthesizing substituted oxadiazepines and related heterocycles via intramolecular SNAr is detailed. Under mild conditions, this methodology has been leveraged to afford products of varying electronic and aryl nature in up to 99% yields.
Matthew W. Reeves, Christian A. Guzman, Herbi Yuliantoro, Peng Li, Elizabeth R. Young   +4 more
wiley   +1 more source

Isotopic H₂ and NH₄⁺ supplementation enhances volatile fatty acid and microbial protein synthesis during in vitro rumen fermentation. [PDF]

BMC Microbiol
Cao Y, Zhang X, Yi S, Kong Z, He Z, Yuan H, Wang R, Li Q, Ma Z, Tan Z, Wang M.   +10 more
europepmc   +1 more source

Intra‐Plant Nitrogen Isotope Fractionation in Maize

Journal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Background and aim The natural abundance of nitrogen isotopes (δ15N) provides a powerful integrative tracer of nitrogen uptake and assimilation in plants, yet the internal partitioning of δ15N among plant tissues remains insufficiently understood.
Priscillia Semaoune, Joëlle Templier, Sylvie Derenne, R. Dave Evans, Mathieu Sebilo   +4 more
wiley   +1 more source

Tracking nickel uptake pathways in hyperaccumulator plants using a ⁶¹Ni-enriched stable isotope tracer in soil. [PDF]

Anal Bioanal Chem
Trimmel S, Epov AV, Abu Zahra N, Berger T, Prohaska T, Puschenreiter M, Siebenbrunner A, Tognacchini A, Wagner S, Irrgeher J.   +9 more
europepmc   +1 more source

Perspectives of High‐Resolution Mass Spectrometry in Soil Science

Journal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Soil biogeochemical research requires specific, sensitive, and accurate methods to identify and quantify organic molecules in order to trace biochemical processes and assess element cycling in complex, heterogenous systems. High‐resolution mass spectrometry (HRMS) has evolved into a transformative tool for unraveling the complex chemical ...
Bruno Glaser, Tobias Bromm, Klaus Kaiser, Arthur Gross, Carsten Simon, Snežana Maletić, Ines Mulder, Oliver J. Lechtenfeld, Sören Thiele‐Bruhn, Ivy Notterpek, Callum Banfield, Michaela A. Dippold   +11 more
wiley   +1 more source