Results 91 to 100 of about 87,481 (331)

11C Radiolabeling of anle253b: a Putative PET Tracer for Parkinson's Disease That Binds to α‐Synuclein Fibrils in vitro and Crosses the Blood‐Brain Barrier

open access: yesChemMedChem, 2019
There is an urgent clinical need for imaging of α‐synuclein (αSyn) fibrils, the hallmark biomarker for Parkinson's disease, in neurodegenerative disorders.
A. Maurer   +12 more
semanticscholar   +1 more source

Biocatalytic Construction of a Chemical Exchange Saturation Transfer Magnetic Resonance Imaging Nucleoside Probe: Synthesis and Evaluation of 5‐Methyl‐5,6‐Dihydrothymidine

open access: yesAdvanced Synthesis &Catalysis, EarlyView.
Al‐Hilfi et al. present a biocatalytic strategy for synthesizing 5‐methyl‐5,6‐dihydrothymidine (5‐MDHT), a sensitive MRI contrast agent. The study demonstrates that recombinant enzyme catalysis offers an efficient, sustainable, and eco‐friendly alternative to traditional chemical synthesis for producing clinically relevant imaging probes.
Aimen Al‐Hilfi   +8 more
wiley   +1 more source

One‐Step Assembly of α‐Aryl‐Substituted DOTAs as Superior and Universal Platforms for Multifunctional Theranostics

open access: yesAngewandte Chemie, EarlyView.
A one‐step multi‐component synthetic approach is reported to construct α‐aryl‐substituted DOTAs, which required tedious multi‐step synthesis in all previous works. The synthesized α‐aryl‐substituted DOTAs showed improved performance for developing multifunctional theranostics and represent a universal platform for bioconjugation. Abstract α‐Substituted
Pak‐Lun Lam   +8 more
wiley   +2 more sources

Rapid one-step 18F-radiolabeling of biomolecules in aqueous media by organophosphine fluoride acceptors

open access: yesNature Communications, 2019
Currently, only a few 18F-radiolabeling methods were conducted in aqueous media, with non-macroelement fluoride acceptors and stringent conditions required.
Huawei Hong   +10 more
semanticscholar   +1 more source

Loss of Fibronectin Fiber Tension in Glioblastoma is Associated with Microvascular Proliferations and Immune Cell Infiltration

open access: yesAdvanced Science, EarlyView.
Researchers discovered that fibronectin fibers lose their tension in specific areas of glioblastoma brain tumors, accumulating in the lumen of proliferating blood vessels and in parenchyma next to infiltrating immune cell clusters. A novel molecular tension probe enables the mapping of fibronectin's fiber tension in glioblastoma for the first time ...
Michele Crestani   +6 more
wiley   +1 more source

Procyanidin B3 and Its Derivatives Alleviate Neuronal Injury by Targeting G3BP1 for Ischemic Stroke Therapy

open access: yesAdvanced Science, EarlyView.
Ischemic stroke is a serious disease with high rates of mortality and disability, but there is a lack of novel therapeutic targets and agents for it. Now it is shown that Ras GTPase‐activating protein SH3 domain‐binding protein 1 (G3BP1) has the potential to serve as a therapeutic target for ischemic stroke.
Heyanhao Zhang   +10 more
wiley   +1 more source

In vivo Non-invasive Imaging of Radio-Labeled Exosome-Mimetics Derived From Red Blood Cells in Mice

open access: yesFrontiers in Pharmacology, 2018
Exosomes are natural nano-sized membrane vesicles that have garnered recent interest owing to their potential as drug delivery vehicles. Though exosomes are effective drug carriers, their production and in vivo biodistribution are still not completely ...
Prakash Gangadaran   +25 more
doaj   +1 more source

An Aptamer‐Based EXACT Anticoagulant as a Sustainable, Animal‐Free Alternative to Unfractionated Heparin

open access: yesAdvanced Science, EarlyView.
By simply conjugating thrombin's active‐site inhibitor, dabigatran, with an exosite inhibitor, aptamer HD1, the resulting EXosite‐ACTive site (EXACT) inhibitors show two orders of magnitude higher potency and selectivity via synergistic binding, while maintaining the aptamer's antidote‐reversible trait, yielding a potential substitute for the animal ...
Haixiang Yu   +11 more
wiley   +1 more source

Development of Radiolabeled Membrane Type-1 Matrix Metalloproteinase Activatable Cell Penetrating Peptide Imaging Probes

open access: yesMolecules, 2015
Membrane type-1 matrix metalloproteinase (MT1-MMP or MMP-14) plays an important role in adverse cardiac remodelling. Here, we aimed to develop radiolabeled activatable cell penetrating peptides (ACPP) sensitive to MT1-MMP for the detection of elevated ...
Sander M. J. van Duijnhoven   +3 more
doaj   +1 more source

Fluorinated Carnitine Derivatives as Tools to Visualise Carnitine Transport and Metabolism

open access: yesAdvanced Science, EarlyView.
Fluorinated carnitines, fluoromethyl carnitine (FMC) and [18F]fluoromethyl carnitine ([18F]FMC), are synthesised and established as powerful probes to interrogate carnitine biology. The multimodal detection facilitated by fluorine labelling, including 19F NMR, mass spectrometry, and positron emission tomography imaging, allowed for visualisation of ...
Richard S. Edwards   +8 more
wiley   +1 more source

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