Results 111 to 120 of about 15,265 (249)

Fecal Steroids as Tracers of Human Population and Waste Management Practices at the Ancient Maya City of Ucanal, Guatemala

open access: yesArchaeometry, EarlyView.
ABSTRACT Geochemical data compiled from dried sediments from three water reservoirs at the ancient Maya city of Ucanal, Petén, Guatemala, reveal low to undetectable fecal biomarker concentrations. These low concentrations may be the result of the aerobic decay of sterols combined with well‐managed waste disposal practices.
Jean D. Tremblay   +3 more
wiley   +1 more source

Human IDO2 exhibits unique binding affinities distinct to those of human IDO1

open access: yesThe FEBS Journal, EarlyView.
Although indoleamine 2,3‐dioxygenase 2 (IDO2) is highly homologous to IDO1, it displays markedly lower catalytic activity. We found that IDO2 binds L‐tryptophan (L‐Trp) in a flipped orientation stabilized by the IDO2‐specific residue His143. Replacement of His143 with the IDO1‐equivalent tyrosine restored an IDO1‐like binding mode and increased ...
Shunsuke Nogi   +8 more
wiley   +1 more source

Clinical Pharmacokinetics of Fexofenadine: A Systematic Review

open access: yesPharmaceutics
Background/Objectives: Fexofenadine hydrochloride is a widely prescribed drug for treating histamine-mediated allergic reactions. This review systematically collates existing research on the clinical pharmacokinetics (PK) of fexofenadine, with a copious ...
Maryam Batool   +5 more
doaj   +1 more source

Drivers of strigolactone diversity: P450s in strigolactone biosynthesis

open access: yesJournal of Integrative Plant Biology, EarlyView.
This review summarizes the discovery and functional identification of cytochrome P450 in strigolactone biosynthesis, classifies and summarizes the members discovered so far, clarifies their biological significance, discusses the technology of strigolactone synthesis research, and finally describes some problems in strigolactone research and potential ...
Changbin Niu   +2 more
wiley   +1 more source

Towards an integrated molecular understanding of plant hormones

open access: yesJournal of Integrative Plant Biology, EarlyView.
This review offers a comprehensive overview of the nine plant hormones, delving into their biosynthesis, transport, signaling and crosstalk mechanisms. Because the complexity of plant hormonal control goes beyond these core elements, additional specific features are discussed. Lastly, this review highlights how fundamental insights drive hormonal‐based
Louise Vilain   +2 more
wiley   +1 more source

Divergent roles of ent‐kaurene oxidase paralogs in rice momilactone biosynthesis

open access: yesJournal of Integrative Plant Biology, EarlyView.
Rice contains a five‐gene tandem array of genes encoding members of the ent‐kaurene oxidase (KO) family, with OsKOL4 and OsKOL5 playing divergent roles in momilactone metabolism, but both acting in the production of antifungal and antibacterial phytoalexins, which are important for disease resistance.
Zhibiao Wang   +8 more
wiley   +1 more source

Stereoisomere Phenylbrommilchsäuren [PDF]

open access: yesBerichte der deutschen chemischen Gesellschaft, 1899
E. Erlenmeyer, A. Moebes
openaire   +1 more source

Pharmacokinetics and Anti‐Inflammatory Effects of Intramuscular Betamethasone in Exercised Thoroughbred Horses

open access: yesJournal of Veterinary Pharmacology and Therapeutics, EarlyView.
ABSTRACT The pharmacokinetics and pharmacodynamics of betamethasone following intra‐articular administration to horses have been described; however, studies characterizing intramuscular administration are lacking. Twenty‐four horses received an intramuscular dose of 12 mg betamethasone sodium phosphate/betamethasone acetate.
Juliana Sullivan   +4 more
wiley   +1 more source

Dehydration‐driven organization of metabolites into NaDES‐like assemblies in orthodox seeds

open access: yesNew Phytologist, EarlyView.
Summary Desiccation tolerance in plants, especially during orthodox seed dehydration, relies on compatible solute accumulation, complex molecular mechanisms, and intermolecular organizations that remain poorly understood. We combined metabolite profiling, mass spectrometry imaging, and electrospray and cold‐spray ionization mass spectrometry to ...
Youcef Haddad   +11 more
wiley   +1 more source

Phylogenetic history shapes the composition of floral scents in a specialized pollination mutualism

open access: yesNew Phytologist, EarlyView.
Summary Most studies of the chemical ecology of plant–pollinator interactions emphasize the role of pollinator‐mediated selection in shaping floral scent composition. Nevertheless, phylogeny may constrain the metabolic pathways underlying these profiles, thereby influencing the evolutionary trajectory of the emitted signals.
Li Cao   +8 more
wiley   +1 more source

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