Results 41 to 50 of about 34,187 (225)

Toward Harmonizing Quantification of Dopamine Neuron Imaging Biomarkers in Parkinson's Disease: The Centamine Scale

open access: yesAnnals of Neurology, EarlyView.
Objective Dopaminergic imaging is a key biomarker for both the investigation of the biology of Parkinson's disease and related synucleinopathies and the evaluation of potential therapies in clinical trials. This work presents a harmonized approach for quantifying dopaminergic molecular imaging tracers, such as [123I]ioflupane (dopamine transporter scan
Zhen Fan   +174 more
wiley   +1 more source

Preparation and Bioevaluation of Novel 99mTc-Labeled Complexes with a 2-Nitroimidazole HYNIC Derivative for Imaging Tumor Hypoxia

open access: yesPharmaceuticals, 2021
To develop novel 99mTc-labeled single-photon emission computed tomography (SPECT) radiotracers for imaging hypoxia, a novel HYNICNM ligand (6-hydrazinonicotinamide (HYNIC) 2-nitroimidazole derivative) was designed and synthesized.
Qing Ruan   +4 more
doaj   +1 more source

When Does Alzheimer's Disease Start? Plasma Aβ42/40 Assays Show Steep Changes at Aβ‐PET Centiloid 15, Mean Age of 66 Years

open access: yesAnnals of Neurology, EarlyView.
Objective Sporadic late‐onset Alzheimer's disease (AD) is characterized by a long pre‐clinical phase where amyloid‐beta (Aβ) and tau begin to accumulate in the brain. The primary objective was to determine the age at which AD starts by finding the average population age when both positron emission tomography (PET) Aβ (Aβ‐PET) and plasma Aβ42/40 become ...
Rodrigo Cánovas   +29 more
wiley   +1 more source

Paediatric development of radiopharmaceutical imaging agents and radioligand therapeutics

open access: yesBritish Journal of Clinical Pharmacology, EarlyView.
Abstract This review focuses on the development of radiopharmaceutical imaging agents and radioligand therapeutics for paediatric use. Nuclear medicine plays an important role in the diagnosis and treatment of various childhood conditions, including cancers, infections and brain disorders.
Justin L. Hay   +5 more
wiley   +1 more source

Supramolecular photodynamic agents for simultaneous oxidation of NADH and generation of superoxide radical

open access: yesNature Communications, 2022
Tumour hypoxia is a major issue for conventional photodynamic therapies, Here, the authors report on the supramolecular assembly of electron acceptors with photosensitizers which have improved reactive oxygen species production and are able to directly ...
Kun-Xu Teng   +3 more
doaj   +1 more source

<sup>18</sup>F-Radiopharmaceutical Diversification Enabled by Deaminative Cross-Electrophile Couplings. [PDF]

open access: yesAngew Chem Int Ed Engl
A general Ni‐mediated (C)sp2–(C)sp3 cross‐coupling expedites access to 18F‐radiopharmaceuticals, essential for positron emission tomography imaging and drug discovery. This late‐stage diversification approach was implemented across three user‐friendly automated protocols affording 18F‐radiotracers in sufficient quantities for imaging.
Ogilvy IF   +13 more
europepmc   +2 more sources

High Yield Branched Puromycin Linker Design Enables Efficient cDNA Display and Chemical Modification of Peptides

open access: yesBiotechnology and Bioengineering, EarlyView.
A novel puromycin linker for cDNA display was synthesized via SPAAC reaction. Its functionality was confirmed by recovering intact DNA after selection against EpCAM. The system also enabled the verification of bicyclic peptides during display, demonstrating its utility for constructing and screening structurally complex peptide libraries.
Simon Schneider   +3 more
wiley   +1 more source

Advances in Parahydrogen‐Induced Polarization for Nuclear Magnetic Resonance of Peptides, Proteins, and Biopolymers

open access: yesChemistryEurope, EarlyView.
Hyperpolarization by parahydrogen‐induced polarization enhances the sensitivity of nuclear magnetic resonance spectroscopy of amino acids, peptides, mini‐proteins, and biopolymers using nonnatural amino acids with unsaturated side chains up to three orders of magnitude.
Gerd Buntkowsky
wiley   +1 more source

Progress and Prospects of Research and Development ofRadiopharmaceuticals in China

open access: yesHe huaxue yu fangshe huaxue
The research and development of radiopharmaceuticals is very important for the early diagnosis and treatment of major diseases such as heart, brain, and tumors.
Hua-bei ZHANG, Yu FANG
doaj   +1 more source

PET Radiopharmaceutical Business [PDF]

open access: gold, 2023
Andrea Pecorale   +2 more
openalex   +1 more source

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