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Towards the Stable Chelation of Radioantimony(V) for Targeted Auger Theranostics.
Angew Chem Int Ed Engl
January 2025
Oak Ridge National Laboratory, Chemical Sciences Division, UNITED STATES OF AMERICA.
Antimony-119 (119Sb) is one of the most attractive Auger-electron emitters identified to date, but it remains practically unexplored for targeted radiotherapy because no chelators have been identified to stably bind this metalloid in vivo. In a departure from current studies focused on chelator development for Sb(III), we explore the chelation chemistry of Sb(V) using the tris-catecholate ligand TREN-CAM. Through a combination of radiolabeling, spectroscopic, solid-state, and computational studies, the radiochemistry and structural chemistry of TREN-CAM with 1XX/natSb(V) were established.
View Article and Find Full Text PDFEffectiveness and safety of radionuclide synovectomy with Yttrium-90 hydroxyapatite in patients with inflammatory arthritis: a longitudinal study.
Nucl Med Commun
January 2025
Department of Pharmacology.
Background And Objective: Yttrium-90 plays a significant role in managing drug-resistant inflammatory arthritis through radionuclide synovectomy, where the radioisotope is injected into the affected joint to alleviate pain and inflammation by targeting the synovial tissue. This study aims to evaluate the effectiveness and safety of Yttrium-90 hydroxyapatite radionuclide synovectomy in improving joint functionality, as judged by physicians, in patients with inflammatory arthritis who had not responded to conventional treatments.
Methods: Patients with inflammatory arthritis were recruited from the orthopedics department and referred to the nuclear medicine department for evaluation.
Investigating the significance of SPECT/CT-SUV for monitoring Lu-PSMA-targeted radionuclide therapy: a systematic review.
BMC Med Imaging
January 2025
Department of Radiological Sciences, College of Health and Rehabilitation Sciences, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh, 11671, Saudi Arabia.
Background: Quantitative molecular imaging via single-photon emission computed tomography-derived standardised uptake value (SPECT/CT-SUV) is used to assess the response of metastatic castration-resistant prostate cancer (mCRPC) patients to targeted radionuclide therapy (TRT) with [Lu]Lu-PSMA. This imaging technique determines the radiopharmaceutical distribution and internal dosimetry in patients who receive TRT. However, there is limited evidence regarding the role of image quantification in monitoring changes induced by [Lu]Lu-PSMA.
View Article and Find Full Text PDFEffective doses received by the gastrointestinal tract compartments of adults due to food intake in Egypt.
Sci Rep
January 2025
Faculty of Computer and Information, South Valley University, Qena, 83523, Egypt.
Ra, Th, and K levels in various foods frequently consumed by Egyptians were determined using a gamma-ray spectrometer based on the germanium detector (HPGe). Activity concentrations of Ra, Th, and K were in the range of < 0.10 to 0.
View Article and Find Full Text PDFOptimal Neutron Spectrum Database for In-reactor Pu Production.
Adv Sci (Weinh)
January 2025
Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu, 610200, China.
Plutonium-238 (Pu) is a scarce heat-source radioisotope used in nuclear batteries, which is produced by in-reactor irradiation of Americium-241 (Am) or Neptunium-237 (Np). Optimizing the neutron spectrum can improve the production efficiency of Pu, but currently, it is still a lack of knowledge about the optimal neutron spectrum for Pu production. Genetic algorithms and burnup algorithms are combined to identify optimal neutron spectra for Pu production under various irradiation times and flux levels, and build an optimal neutron spectrum database, which answers the questions "What is the optimal neutron spectrum for Pu production?" and "What is the maximum efficiency for Pu production" once and for all.
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