•A processed-foods diet (PD) impaired learning and memory in aged male rats. •PD increased inflammatory genes in the hippocampus and amygdala of aged rats. •DHA supplementation prevented memory deficits in PD-fed aged rats. •DHA supplementation ameliorated increases in inflammatory gene expression. •PD consumption led to increased weight gain in young and aged rats. AbstractThe consumption… Continue reading Dietary #DHA prevents cognitive impairment and inflammatory gene expression in aged male rats fed a diet enriched with refined #carbohydrates
Category: Neurology
All-cause and cause-specific mortality in people with #mental disorders and intellectual disabilities, before and during the COVID-19 pandemic: cohort study
People with mental disorders and intellectual disabilities experience excess mortality compared with the general population. The impact of COVID-19 on exacerbating this, and in widening ethnic inequalities, is unclear. METHODSProspective data (N=167,122) from a large mental healthcare provider in London, UK, with deaths from 2019 to 2020, used to assess age- and gender-standardised mortality ratios… Continue reading All-cause and cause-specific mortality in people with #mental disorders and intellectual disabilities, before and during the COVID-19 pandemic: cohort study
Effect of Transcranial Near-Infrared #Light 1068 nm Upon #Memory Performance in Aging Healthy Individuals: A Pilot Study
We present a pilot study of near-infrared (NIR) 1068 nm transcranial photobiomodulation therapy (PBM-T). Impact upon motor function, memory, and processing speed in healthy individuals, older than 45 years of age, was evaluated. Methods: PBM-T was performed at home using a transcranial phototherapy device, a helmet that comprised 14 air cooled light emitting diode panel arrays,… Continue reading Effect of Transcranial Near-Infrared #Light 1068 nm Upon #Memory Performance in Aging Healthy Individuals: A Pilot Study
A microRNA signature that correlates with cognition and is a target against #cognitive decline
While some individuals age without pathological memory impairments, others develop age-associated cognitive diseases. Since changes in cognitive function develop slowly over time in these patients, they are often diagnosed at an advanced stage of molecular pathology, a time point when causative treatments fail. Thus, there is great need for the identification of inexpensive and minimal… Continue reading A microRNA signature that correlates with cognition and is a target against #cognitive decline
Fecal #microbiota transplantation from mice exposed to chronic intermittent hypoxia elicits #sleep disturbances in naïve mice
Obstructive sleep apnea (OSA) is a chronic prevalent condition characterized by intermittent hypoxia (IH) and sleep fragmentation (SF). Evidence suggests that OSA can alter the gut microbiome (GM) diversity and composition that may then promote the occurrence of some of the OSA-associated morbidities. However, it is unclear whether perturbations in the GM caused by IH… Continue reading Fecal #microbiota transplantation from mice exposed to chronic intermittent hypoxia elicits #sleep disturbances in naïve mice
Circuit-specific enteric #glia regulate #intestinal motor neurocircuits
Neurons have long been considered the main active cell type within the circuitry of the enteric nervous system (ENS), giving rise to a neurocentric paradigm that has tended to overlook the role of enteric glia as key regulators of gut motility. Understanding how simple synapse-level interactions give rise to complex, network-level behaviors remains a fundamental… Continue reading Circuit-specific enteric #glia regulate #intestinal motor neurocircuits
Total #sleep deprivation reduces top-down regulation of #emotion without altering bottom-up affective processing
Sleep loss is reported to influence affective processing, causing changes in overall mood and altering emotion regulation. These aspects of affective processing are seldom investigated together, making it difficult to determine whether total sleep deprivation has a global effect on how affective stimuli and emotions are processed, or whether specific components of affective processing are… Continue reading Total #sleep deprivation reduces top-down regulation of #emotion without altering bottom-up affective processing
Optimal Blood #Pressure Keeps Our #Brains Younger
Elevated blood pressure (BP) is a major health risk factor and the leading global cause of premature death. Hypertension is also a risk factor for cognitive decline and dementia. However, when elevated blood pressure starts impacting cerebral health is less clear. We addressed this gap by estimating how a validated measure of brain health relates… Continue reading Optimal Blood #Pressure Keeps Our #Brains Younger
#Depressive Symptoms Imputed Across the Life Course Are Associated with #Cognitive Impairment and Cognitive Decline
Depressive symptoms may increase risk for dementia, but findings are controversial because late-life depression may be a prodromal dementia symptom. Life course data on depression and dementia risk may clarify this association; however, data is limited. Objective: To impute adult depressive symptoms trajectories across adult life stages and estimate the association with cognitive impairment and… Continue reading #Depressive Symptoms Imputed Across the Life Course Are Associated with #Cognitive Impairment and Cognitive Decline
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