The gut microbiota plays a key role in mental health, with growing evidence linking its composition to anxiety and depressive disorders. Research on this topic has expanded significantly in recent years. This review explores alterations in the gut microbiota of individuals with anxiety disorders and examines the potential therapeutic effects of probiotics. Background/Objectives: This review… Continue reading The Impact of Gut #Microbiota on the Development of #Anxiety Symptoms—A Narrative Review
Category: Neurology
Human #microplastic removal: what does the evidence tell us?
The increased levels of microplastics and nanoplastics (MNPs) found in human brain tissue are alarming, particularly in patients with dementia. Although total avoidance of MNP exposure will likely remain an unattainable endpoint in light of their ubiquity in the environment, new studies indicate feasible pathways by which dietary intake may be decreased or clearances improved.… Continue reading Human #microplastic removal: what does the evidence tell us?
Long-Term Exposure to Non-Steroidal Anti-Inflammatory Medication in Relation to #Dementia Risk
BackgroundNon-steroidal anti-inflammatory (NSAID) medication could reduce dementia risk due to anti-inflammatory and possibly amyloid-lowering properties. However, the results of observational studies and short-term randomized-controlled trials have been inconsistent, and duration and dose–response relationships are still unclear.MethodsWe included 11,745 dementia-free participants from the prospective population-based Rotterdam Study (59.5% female, mean age 66.2 years). NSAID use from 1991… Continue reading Long-Term Exposure to Non-Steroidal Anti-Inflammatory Medication in Relation to #Dementia Risk
Association of #Diet and #Waist-to-Hip Ratio With Brain Connectivity and #Memory in #Aging
Importance Epidemiological studies suggest that lifestyle factors are associated with risk of dementia. However, few studies have examined the association of diet and waist to hip ratio (WHR) with hippocampus connectivity and cognitive health.Objective To ascertain how longitudinal changes in diet quality and WHR during midlife are associated with hippocampal connectivity and cognitive function in… Continue reading Association of #Diet and #Waist-to-Hip Ratio With Brain Connectivity and #Memory in #Aging
#Cognitive Decline After First-Time Transient #Ischemic Attack
Question When controlling for vascular and demographic factors, does transient ischemic attack confer an independent risk for cognitive decline?Findings In this longitudinal cohort study (Reasons for Geographic and Racial Differences in Stroke [REGARDS]), pre-event and postevent cognitive trajectories were compared in 356 individuals with TIA, 965 individuals with stroke, and 14 882 asymptomatic controls. A single,… Continue reading #Cognitive Decline After First-Time Transient #Ischemic Attack
Microbial metabolites tune #amygdala neuronal hyperexcitability and #anxiety-linked behaviors
Changes in gut microbiota composition have been linked to anxiety behavior in rodents. However, the underlying neural circuitry linking microbiota and their metabolites to anxiety behavior remains unknown. Using male C57BL/6J germ-free (GF) mice, not exposed to live microbes, increased anxiety-related behavior was observed correlating with a significant increase in the immediate early c-Fos gene… Continue reading Microbial metabolites tune #amygdala neuronal hyperexcitability and #anxiety-linked behaviors
Salt Substitution and Recurrent #Stroke and DeathA Randomized Clinical Trial
Question Does the use of a reduced-sodium, added-potassium salt substitute vs regular salt decrease the risk of stroke recurrence and death in patients with a history of stroke?Findings In this prespecified subgroup analysis of the Salt Substitute and Stroke Study (SSaSS) trial involving 15 249 patients with stroke, the use of a salt substitute led… Continue reading Salt Substitution and Recurrent #Stroke and DeathA Randomized Clinical Trial
Propagation of pathologic α-synuclein from #kidney to brain may contribute to #Parkinson’s disease
The pathogenesis of Lewy body diseases (LBDs), including Parkinson’s disease (PD), involves α-synuclein (α-Syn) aggregation that originates in peripheral organs and spreads to the brain. PD incidence is increased in individuals with chronic renal failure, but the underlying mechanisms remain unknown. Here we observed α-Syn deposits in the kidneys of patients with LBDs and in… Continue reading Propagation of pathologic α-synuclein from #kidney to brain may contribute to #Parkinson’s disease
Oral #microbiome and nitric oxide biomarkers in older people with mild #cognitive impairment and APOE4 genotype
AbstractApolipoprotein E4 (APOE4) genotype and nitric oxide (NO) deficiency are risk factors for age-associated cognitive decline. The oral microbiome plays a critical role in maintaining NO bioavailability during aging. The aim of this study was to assess interactions between the oral microbiome, NO biomarkers, and cognitive function in 60 participants with mild cognitive impairment (MCI)… Continue reading Oral #microbiome and nitric oxide biomarkers in older people with mild #cognitive impairment and APOE4 genotype
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