Preclinical and clinical imaging techniques as pathophysiological biomarkers — A preface to the special issue “Brain Imaging” DOI Open Access
Victor L. Villemagne, Yulong Li

Journal of Neurochemistry, Journal Year: 2022, Volume and Issue: 164(3), P. 266 - 269

Published: Nov. 16, 2022

Molecular imaging techniques have become important tools to characterize and measure biological processes at the cellular molecular levels. Nowadays, are widely used in preclinical clinical studies assess dynamics under physiological conditions during pathological processes. This special issue on Brain Imaging (https://onlinelibrary.wiley.com/doi/toc/10.1111/[ISSN]1471-4159.brain-imaging) will highlight some of recent advances developing new applying understand biomarker health diseases.

Language: Английский

Monoamine alterations in Alzheimer’s disease and their implications in comorbid neuropsychiatric symptoms DOI Creative Commons
Shalini Saggu,

Ava Bai,

Mae Aida

et al.

GeroScience, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 27, 2024

Language: Английский

Citations

5

Deep learning in pediatric neuroimaging DOI Creative Commons
Jian Wang, Jiaji Wang, Shuihua Wang‎

et al.

Displays, Journal Year: 2023, Volume and Issue: 80, P. 102583 - 102583

Published: Nov. 15, 2023

The integration of deep learning techniques in pediatric neuroimaging has shown significant promise advancing various aspects the field. This paper provides a comprehensive exploration applications neuroimaging, focusing on image processing and reconstruction, segmentation classification, brain abnormalities detection, development maturation analysis. It discusses key deep-learning their relevance neuroimaging. also addresses challenges limitations such as lack standardization, ethical privacy concerns, limited heterogeneous data, age, gender, developmental variations. highlights future directions opportunities, including multi-modal considerations, diagnosing initiating treatment during early stages, impact maternal emotional well-being development. insights provided this aim to contribute understanding how can positively inspire further research innovation Ultimately, adopting improve patient outcomes, advance diagnostic accuracy, enhance our

Language: Английский

Citations

12

The Coming of Age of the P2X7 Receptor in Diagnostic Medicine DOI Open Access
Francesco Di Virgilio, Valentina Vultaggio-Poma, Simonetta Falzoni

et al.

International Journal of Molecular Sciences, Journal Year: 2023, Volume and Issue: 24(11), P. 9465 - 9465

Published: May 30, 2023

The discovery of the P2X7 receptor (P2X7R, originally named P2Z) in immune cells, its cloning, and identification role a multiplicity immune-mediated diseases raised great hopes for development novel more potent anti-inflammatory medicaments. Unfortunately, such were partially deluded by unsatisfactory results most early clinical trials. This failure substantially reduced interest pharmaceutical biotech industries P2X7R-targeted therapies. However, recent findings ushered second life P2X7R diagnostic medicine. New radioligands proved to be very reliable tools diagnosis neuroinflammation preclinical studies, detection measurement free (or subunit) human blood suggested potential use as circulating marker inflammation. Here we provide brief review these developments.

Language: Английский

Citations

11

Tryptophan Kynurenine Pathway-Based Imaging Agents for Brain Disorders and Oncology—From Bench to Bedside DOI Creative Commons

Erik Stauff,

Wenqi Xu, Heidi H. Kecskemethy

et al.

Biomolecules, Journal Year: 2025, Volume and Issue: 15(1), P. 47 - 47

Published: Jan. 1, 2025

Tryptophan (Trp)-based radiotracers have excellent potential for imaging many different types of brain pathology because their involvement with both the serotonergic and kynurenine (KYN) pathways. However, specific to metabolism pathway are limited. In addition, historically Trp-based radiopharmaceuticals were synthesized short-lived isotope carbon-11. A newer generation agents using longer half-lived commercially available isotopes, such as fluorine-18 iodine-124, being developed. The newly developed amino acid-based tracers been demonstrated favorable radiochemical characteristics in pre-clinical studies. barriers still exist clinical translation KYN pathway-specific radiotracers.

Language: Английский

Citations

0

Detection of Parkinson Disease Using Machine Learning Methods DOI
Debabrata Singh, Anil Kumar Biswal, Saroja Kumar Rout

et al.

Lecture notes in electrical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 393 - 405

Published: Jan. 1, 2025

Language: Английский

Citations

0

Novel therapeutics in development for the treatment of stimulant-use disorder DOI Creative Commons

Erica J. Young,

László Radnai,

В. А. Приходько

et al.

Current Opinion in Neurobiology, Journal Year: 2024, Volume and Issue: 87, P. 102898 - 102898

Published: Aug. 1, 2024

Misuse and accidental overdoses attributed to stimulants are escalating rapidly. These include methamphetamine, cocaine, amphetamine, ecstasy-type drugs, prescription such as methylphenidate. Unlike opioids alcohol, there no therapies approved by the US Food Drug Administration (FDA) treat stimulant-use disorder. The high rate of relapse among this population highlights insufficiency current treatment options, which limited abstinence support programs behavioral modification therapies. Here, we briefly outline recent regulatory actions taken FDA help development new stimulant use disorder treatments highlight several therapeutics in clinical pipeline.

Language: Английский

Citations

3

Positron Emission Tomography of Neuroimmune Responses in Humans: Insights and Intricacies DOI
Nakul Ravi Raval, Reagan R. Wetherill, Corinde E. Wiers

et al.

Seminars in Nuclear Medicine, Journal Year: 2022, Volume and Issue: 53(2), P. 213 - 229

Published: Oct. 19, 2022

Language: Английский

Citations

12

Positron Emission Tomography for the Discovery of New Drugs in Psychiatry DOI
Luc Zimmer

ACS Chemical Neuroscience, Journal Year: 2023, Volume and Issue: 14(4), P. 524 - 526

Published: Feb. 2, 2023

The arsenal of drugs for psychiatry has been difficult to renew several decades. Many failures in therapeutic trials can be explained by poorly evaluated pharmacological properties, terms brain passage, target binding, and functional modulation. Positron emission tomography provide pharmacokinetic pharmacodynamic data that will help better select candidate molecules larger-scale clinical trials.

Language: Английский

Citations

5

Recent advances in the development of CB1R selective probes DOI Creative Commons
Arianna Amenta, Diego Caprioglio, Alberto Minassi

et al.

Frontiers in Natural Products, Journal Year: 2023, Volume and Issue: 2

Published: July 18, 2023

Cannabinoid subtype 1 receptors (CB Rs) are an important class of G protein-coupled (GPCRs) belonging to the endocannabinoid system. CB Rs play a crucial modulatory role in functioning other neurotransmitter systems and involved wide range physiological functions dysfunctions; thus, they considered one most targets for drug development, as well diagnostic purposes. Despite this, only few molecules targeting this receptor available on pharmaceutical market, thus emphasizing need gain deeper understanding complex activation pathways how regulate diseases. As part review, we provide overview pharmacological imaging tools useful detecting Rs. Herein, summarize derivations cannabinoids terpenoids with fluorescent compounds, radiotracers, or photochromic motifs. Rs’ molecular probes may be used vitro and, some cases, vivo investigating exploring roles together starting point development R-targeted drugs.

Language: Английский

Citations

5

Molecular Positron Emission Tomography and Single-Photon Emission Computed Tomography Imaging for Understanding the Neurobiological Mechanisms of Electroconvulsive Therapy DOI Creative Commons
Maarten Laroy, Koen Van Laere, Mathieu Vandenbulcke

et al.

Journal of Ect, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 17, 2024

Abstract Electroconvulsive therapy (ECT) effectively treats severe psychiatric disorders such as depression, mania, catatonia, and schizophrenia. Although its exact mechanism remains unclear, ECT is thought to induce neurochemical neuroendocrine changes. Positron emission tomography (PET) single-photon computed (SPECT) have provided vital insights into ECT's neurobiological effects. This scoping review investigates the role of molecular imaging in understanding these A systematic search across PubMed, EMBASE, Web Science, Cochrane, Scopus databases yielded 857 unique records, from which 45 peer-reviewed articles English with longitudinal PET or SPECT measures patients were included. The identifies 2 main research directions: impact on brain activity neurotransmitters. Initial assessed regional cerebral blood flow glucose metabolism during ictal (during ECT), postictal (within 24 hours), short-term a week), long-term (beyond week) follow-up markers activity. findings showed an anterior-posterior gradient phase, subsequent normalization hypoperfusion frontal parietal regions, persistent Later, shifted monoamine hypothesis examining serotonin dopamine systems via imaging. Results receptor availability post-ECT mixed, showing both reductions no significant changes, indicating variable further highlights need explore new targets, tailor methodologies for patient populations, foster multicenter studies. has been valuable, advances now make it preferable, offering unparalleled mechanisms.

Language: Английский

Citations

1