Results 11 to 20 of about 2,065,342 (284)

White matter lesion load determines exercise-induced dopaminergic plasticity and working memory gains in aging

open access: yesTranslational Psychiatry, 2023
Age-related dopamine reductions have been suggested to contribute to maladaptive working memory (WM) function in older ages. One promising intervention approach is to increase physical activity, as this has been associated with plasticity of the striatal
Bryn Farnsworth von Cederwald   +4 more
doaj   +1 more source

Characterization of the effects of outliers on ComBat harmonization for removing inter-site data heterogeneity in multisite neuroimaging studies

open access: yesFrontiers in Neuroscience, 2023
Data harmonization is a key step widely used in multisite neuroimaging studies to remove inter-site heterogeneity of data distribution. However, data harmonization may even introduce additional inter-site differences in neuroimaging data if outliers are ...
Qichao Han   +6 more
doaj   +1 more source

A Preliminary Study on the Diagnostic Efficacy of Proton Magnetic Resonance Spectroscopy at 3.0T in Rabbit With VX2 Liver Tumor

open access: yesTechnology in Cancer Research & Treatment, 2021
Background: To investigate the diagnostic efficacy of choline (Cho) value of magnetic resonance spectroscopy (MRS) in rabbit with VX2 liver tumor via comparative and quantitative analysis with the choline compounds concentration measured by enzyme linked
Ruikun Liao   +9 more
doaj   +1 more source

Three-dimensional facial swelling evaluation of piezo-electric vs conventional drilling bur surgery of impacted lower third molar: a randomized clinical trial

open access: yesBMC Oral Health, 2023
Background Among the post-surgical complications of lower wisdom teeth surgery, swelling is considered by patients one of the most impairing, with both social and biological influences and impacting patients' quality of life.
A. Caputo   +6 more
doaj   +1 more source

Neurovascular coupling alterations in type 2 diabetes: a 5-year longitudinal MRI study

open access: yesBMJ Open Diabetes Research & Care, 2021
Introduction Respective alterations in resting-state brain neural activity and cerebral blood flow (CBF) in type 2 diabetes mellitus (T2DM) have been reported. However, their coupling alteration in T2DM remains largely unknown.Research design and methods
Wen Qin   +5 more
doaj   +1 more source

Transcriptional signatures of the whole-brain voxel-wise resting-state functional network centrality alterations in schizophrenia

open access: yesSchizophrenia, 2023
Neuroimaging studies have revealed that patients with schizophrenia exhibit disrupted resting-state functional connectivity. However, the inconsistent findings across these studies have hindered our comprehensive understanding of the functional ...
Lining Guo   +15 more
doaj   +1 more source

Identifying the mediating role of socioeconomic status on the relationship between schizophrenia and major depressive disorder: a Mendelian randomisation analysis

open access: yesSchizophrenia, 2023
Depressive disorder prevalence in patients with schizophrenia has been reported to be 40%. People with low socioeconomic status (SES) are more likely to suffer from schizophrenia and major depressive disorder (MDD).
Qiang Xu   +16 more
doaj   +1 more source

Quantitative evaluation of PSMA PET imaging using a realistic anthropomorphic phantom and shell-less radioactive epoxy lesions

open access: yesEJNMMI Physics, 2022
Background Positron emission tomography (PET) with prostate specific membrane antigen (PSMA) have shown superior performance in detecting metastatic prostate cancers.
Roberto Fedrigo   +8 more
doaj   +1 more source

Magnetism of materials: theory and practice in magnetic resonance imaging

open access: yesInsights into Imaging, 2021
All substances exert magnetic properties in some extent when placed in an external magnetic field. Magnetic susceptibility represents a measure of the magnitude of magnetization of a certain substance when the external magnetic field is applied ...
Michele Gaeta   +10 more
doaj   +1 more source

Retrieval practice facilitates learning by strengthening processing in both the anterior and posterior hippocampus

open access: yesBrain and Behavior, 2021
Introduction and Methods A large number of behavioral studies show that retrieval practice is a powerful way of strengthening learning of new information.
Carola Wiklund‐Hörnqvist   +4 more
doaj   +1 more source

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