The ongoing development of animal models of neurological and psychiatric disorders in combination with the development of advanced nuclear magnetic resonance (NMR) techniques and instrumentation has led to increased use of in vivo proton NMR spectroscopy ((1)H-MRS) for neurochemical analyses. (1)H-MRS is one of only a few analytical methods that can assay in vivo and longitudinal neurochemical changes associated with neurological and psychiatric diseases, with the added advantage of being a technique that can be utilized in both preclinical and clinical studies. In this review, recent progress in the use of (1)H-MRS to investigate animal models of neurological and psychiatric disorders is summarized with examples from the literature and our own work.
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http://dx.doi.org/10.4155/bio.12.129 | DOI Listing |
Brain Inj
January 2025
Department of Sports Medicine, Texas Scottish Rite Hospital for Children, Dallas, Texas, USA.
Introduction: Athletes with concussions experience heterogeneous symptoms and clinical trajectories. Subclassification provides diagnostic clarity that may improve prognostication and individualized treatments.
Methods: We hypothesized that endophenotypes of adolescent athletes with concussions differ based on sex and time since injury.
JAMA Netw Open
December 2024
Department of Psychiatry, Washington University in St Louis, St Louis, Missouri.
Importance: Depression and antidepressant use are independently associated with crash risk among older drivers. However, it is unclear what factors impact daily driving that increase safety risk for drivers with depression.
Objective: To examine differences in naturalistic driving behavior and safety between older adults with and without major depressive disorder (MDD).
Alzheimers Dement
December 2024
Ace Alzheimer Center Barcelona - International University of Catalunya (UIC), Barcelona, Spain.
Background: Alzheimer's disease (AD) is a complex disorder with a strong genetic component, yet many genetic risk factors remain unknown. Integrating genome-wide association studies (GWAS) and high-throughput proteomic platforms is a useful strategy to evaluate protein quantitative trait loci (pQTLs) and to detect candidate genes and pathways involved in AD. Due to the novelty of these techniques, the identification of reliable protein measures through a comprehensive quality control is mandatory.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
Background: Cerebral small vessel disease (cSVD), as defined by neuroimaging characteristics such as white matter hyperintensities (WMHs), cerebral microhemorrhages (CMHs), and lacunar infarcts, is highly prevalent and has been associated with dementia risk and other clinical sequelae. Although risk factors for cSVD have been identified, little is known about the biological processes and molecular mediators that influence cSVD development and progression.
Methods: Within the Atherosclerosis Risk in Communities (ARIC) study, we used SomaScan Multiplexed Proteomic technology to relate 4,877 plasma proteins to concurrently measured MRI-defined cSVD characteristics, including WMHs, CMHs, and lacunar infarcts, in late-life (n=1508; mean age: 76).
Background: Changes in Amyloid-β (A) and hyperphosphorylated Tau (T) in the brain and cerebrospinal fluid (CSF) precedes AD symptoms, making the CSF proteome a potential avenue to understand disease pathophysiology and facilitate reliable diagnostics and therapies.
Method: We used the Somascan assay for measuring the protein levels of 7,029 analytes in CSF of 2,286 participants from four different cohorts. We employed a three-stage analytical approach (discovery, replication, and meta-analysis).
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