Results 131 to 140 of about 236,513 (253)

Matrix‐Activated Aptamer Sensors for Human Serum Analysis

Angewandte Chemie, EarlyView.
The sample self‐analyzes: The predominant serum proteins, albumin and immunoglobulin G, were leveraged to activate the response of fluorescent aptamer probes within the biological matrix. The fluorescence‐anisotropy‐based sensing platform demonstrated both performance and consistency for the direct detection of small molecules in serum‐rich samples ...
Amandine Barbaroux, Benoit Chovelon, Emmanuelle Fiore, Sebastien Vezirian, Mickael Henry, Marwa Zoubeidi, Maria C. DeRosa, Corinne Ravelet, Eric Peyrin   +8 more
wiley   +2 more sources

Gut microbiota-driven indole-3-propionic acid and kynurenine production is associated with improved metabolic adaptation in periparturient dairy cows. [PDF]

J Anim Sci Biotechnol
Liu X, Yang Z, Zhang X, Tang W, Wang Y, Cao Z, Yang H, Wang W, Hao Y, Li S.   +9 more
europepmc   +1 more source

Neurotransmitter‐Defined Degeneration Patterns in Sporadic and C9orf72‐Associated Amyotrophic Lateral Sclerosis: Predilection to GABAergic, Serotonergic, Opioid, Glutamatergic, Endocannabinoid, and Microglial Systems—Implications for Therapy Development

Annals of Neurology, EarlyView.
Objective Amyotrophic lateral sclerosis (ALS) has a markedly distinctive clinical and neuroradiological signature, with the preferential involvement of specific brain networks and the apparent sparing of others. The molecular underpinnings of the strikingly selective anatomical vulnerability have not been fully elucidated to date despite the potential ...
Marlene Tahedl, We Fong Siah, Jasmin Lope, Jennifer C. Hengeveld, Mark A. Doherty, Russell L. McLaughlin, Orla Hardiman, Ee Ling Tan, Alison Toomey, Jana Kleinerova, Peter Bede   +10 more
wiley   +1 more source

Isothiazologuanosine (tzG) as Environmentally Sensitive Fluorescent Reporter in RNA

Angewandte Chemie, EarlyView.
The emissive isothiazologuanosine analog tzG is synthesized for the first time as RNA phosphoramidite building block for solid‐phase synthesis. Due to its isomorphic and isofunctional characteristics, tzG forms Watson–Crick base pairs and can be used as fluorescent probe to monitor (deoxy)ribozyme activity.
Julia Dietzsch, Yitzhak Tor, Claudia Höbartner   +2 more
wiley   +2 more sources

Compensatory pathways in tryptophan metabolism and immune regulation following IDO inhibition. [PDF]

Mol Biol Rep
Gontijo I, Camurça M, Kfoury JR.
europepmc   +1 more source

The metabolism of tryptophan [PDF]

Biochemical Journal, 1924
openaire   +4 more sources

Rhenium‐Based β‐Galactosidase Probe Allows Senescence Profiling by Mass Cytometry

Angewandte Chemie, EarlyView.
Senescence‐associated β‐galactosidase (SA‐β‐Gal) activity is a widely accepted biomarker of cellular senescence, yet its integration with other senescence markers has been limited by available detection methods. Here, we introduce ReGal, a mass cytometry‐compatible SA‐β‐Gal activity probe that can be multiplexed with established markers of senescence ...
Adam Tam, Kris Elbein, Aleida G. Gonzalez, Edgar A. Arriaga, Mark Nitz   +4 more
wiley   +2 more sources

Microbiome-Derived Tryptophan Metabolites Regulate AhR Signaling to Restore Epithelial Barrier Integrity in Inflammatory Bowel Disease. [PDF]

Microbiologyopen
Mahdiabadi MA, Moghaddam A, Erfanian N.
europepmc   +1 more source

A Conserved Isoleucine Gates the Diffusion of CO and O2 to the Active Site of NiFe CO‐Dehydrogenase

Angewandte Chemie, EarlyView.
A combination of protein film electrochemistry and site‐directed mutagenesis shows that isoleucine 563 (numbering of Thermococcus sp. AM4) gates the arrival of both CO and O2 to the active site of the nickel‐iron CO dehydrogenases. Mutations at this position increase the resistance to O2 at the cost of a slower reaction with CO.
Laura Opdam, Marta Meneghello, Chloé Guendon, Jade Chargelègue, Andrea Fasano, Aurore Jacq‐Bailly, Christophe Léger, Vincent Fourmond   +7 more
wiley   +2 more sources

Dietary Tryptophan Allocation in Depression: Serotonin-Kynurenine Balance, Microbial Indole Pathways, and Inflammatory Phenotypes. [PDF]

Nutrients
Kordas B.
europepmc   +1 more source