Consciousness, its neural underpinnings, and the role of frontal cortex are highly debated topics. New evidence shows that human frontal cortex can bias conscious perception. What does this really mean about its contribution to consciousness?
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http://dx.doi.org/10.1016/j.cub.2021.05.012 | DOI Listing |
Neurochem Res
January 2025
Precision Pharmacy & Drug Development Center, Department of Pharmacy, Tangdu Hospital, Air Force Medical University, Xi'an, 710038, China.
Depression is a common and complex neuropsychiatric disorder affecting people of all ages worldwide, associated with high rates of relapse and disability. Neohesperidin (NEO) is a dietary flavonoid with applications in therapeutics; however, its effects on depressive-like behavior remain unknown. Here, we evaluated the effects of NEO on depressive-like behavior induced by chronic and unpredictable mild stress (CUMS).
View Article and Find Full Text PDFMetab Brain Dis
January 2025
Department of Biological Sciences (Pharmacology and Toxicology), National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad, Balanagar, Hyderabad, 500037, Telangana, India.
The negative impact of repeated-mild traumatic brain injury (rmTBI) is profoundly seen in circadian-disrupted individuals. The unrelenting inflammation, glial activation, and gut dysbiosis are key neuropathological aberrations in the aftermath of rmTBI. In this study, we examined the impact of chitosan lactate (CL) on circadian disturbance (CD) + rmTBI-generated neurological dysfunctions and its prebiotic response on the gut-brain axis.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
Columbia University Irving Medical Center, New York, NY, USA.
Background: Glial cells exhibit distinct transcriptional responses to β-amyloid pathology in Alzheimer's disease (AD). While sophisticated single-cell based methods have revealed heterogeneous glial subpopulations in the human AD brain, the histological localization of these multicellular responses to AD pathology has not been fully characterized due to the loss of spatial information. Here, we combined spatial transcriptomics (ST) with immunohistochemistry to explore the molecular mechanisms in the neuritic plaque niche.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
Icahn School of Medicine at Mount Sinai, New York, NY, USA.
Background: Heterogeneity in the progression of clinical dementia poses a significant challenge, impeding the effectiveness of current therapies for Alzheimer's disease (AD). To decipher the molecular mechanisms governing heterogeneity in AD progression that remains a critical knowledge gap precluding rational therapeutic design, we investigated the biochemical and biophysical properties of tau present in the inferior temporal gyrus (ITG) and prefrontal cortex (PFC) brain regions of AD patients who had varying disease progression rates. To explore gene expression changes in the ITG which are associated with tau pathology and cognitive decline, we used RNA sequencing for molecular characterization of patients displaying tau and clinical heterogeneity.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
Brunel University London, London, United Kingdom.
Background: Psychosis occurs in 30-40% of individuals with AD. New insights into disease mechanisms may lead to novel pharmacological targets and treatments. Previous studies have focused on bulk tissue analysis with limited results.
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