The association between serum folate deficiency and the risk of dementia in old age is unclear, perhaps owing to small sample sizes, the competing risk of mortality or reverse causation. Objective To examine the associations between serum folate deficiency and the risks of incident dementia and all-cause mortality in a large national sample of older… Continue reading Serum folate deficiency and the risks of dementia and all-cause mortality: a national study of old age
Author: aledopress
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Blood Pressure Hyperreactivity to Standing: a Predictor of Adverse Outcome in Young Hypertensive Patients
The prognostic significance and the mechanisms of blood pressure (BP) hyperreactivity to standing remain controversial. This study aims to evaluate the association of orthostatic hyperreactivity with major adverse cardiovascular and renal events in a cohort of young hypertensive subjects. We studied 1207 untreated subjects screened for stage I hypertension with a mean age of 33.1±8.6… Continue reading Blood Pressure Hyperreactivity to Standing: a Predictor of Adverse Outcome in Young Hypertensive Patients
GlyNAC (Glycine and N-Acetylcysteine) Supplementation in Mice Increases Length of Life by Correcting Glutathione Deficiency, Oxidative Stress, Mitochondrial Dysfunction, Abnormalities in Mitophagy and Nutrient Sensing, and Genomic Damage
Determinants of length of life are not well understood, and therefore increasing lifespan is a challenge. Cardinal theories of aging suggest that oxidative stress (OxS) and mitochondrial dysfunction contribute to the aging process, but it is unclear if they could also impact lifespan. Glutathione (GSH), the most abundant intracellular antioxidant, protects cells from OxS and… Continue reading GlyNAC (Glycine and N-Acetylcysteine) Supplementation in Mice Increases Length of Life by Correcting Glutathione Deficiency, Oxidative Stress, Mitochondrial Dysfunction, Abnormalities in Mitophagy and Nutrient Sensing, and Genomic Damage
Retinoic acid inhibitors mitigate vision loss in a mouse model of retinal degeneration
Rod and cone photoreceptors degenerate in retinitis pigmentosa (RP). While downstream neurons survive, they undergo physiological changes, including accelerated spontaneous firing in retinal ganglion cells (RGCs). Retinoic acid (RA) is the molecular trigger of RGC hyperactivity, but whether this interferes with visual perception is unknown. Here, we show that inhibiting RA synthesis with disulfiram, a… Continue reading Retinoic acid inhibitors mitigate vision loss in a mouse model of retinal degeneration
mRNA vaccines: Why is the biology of retroposition ignored
The major advantage of mRNA vaccines over more conventional approaches is their potential for rapid development and large-scale deployment in pandemic situations. In the current COVID-19 crisis the two mRNA COVID-19 vaccines have been conditionally approved and broadly applied, while others are still in clinical trials. However, there is no previous experience with the use… Continue reading mRNA vaccines: Why is the biology of retroposition ignored
Managing bleeding risk after cold snare polypectomy in patients receiving direct-acting oral anticoagulants
Background and AimsThe best strategy to manage direct-acting oral anticoagulants (DOACs) for patients undergoing cold snare polypectomy remains unclear. This study compared the effect of continuing versus stopping DOACs only on the day of the procedure on bleeding after cold snare polypectomy. MethodsThis prospective, observational, single-center cohort study enrolled consecutive patients receiving antithrombotic agents and… Continue reading Managing bleeding risk after cold snare polypectomy in patients receiving direct-acting oral anticoagulants
Saccade-related neural communication in the human medial temporal lobe is modulated by the social relevance of stimuli
Humans predominantly explore their environment by moving their eyes. To optimally communicate and process visual information, neural activity needs to be coordinated with the execution of eye movements. We investigated the coordination between visual exploration and interareal neural communication by analyzing local field potentials and single neuron activity in patients with epilepsy. We demonstrated that… Continue reading Saccade-related neural communication in the human medial temporal lobe is modulated by the social relevance of stimuli
Analysis of the SYSDIET Healthy Nordic Diet randomized trial based on metabolic profiling reveal beneficial effects on glucose metabolism and blood lipids
Background & aimsIntake assessment in multicenter trials is challenging, yet important for accurate outcome evaluation. The present study aimed to characterize a multicenter randomized controlled trial with a healthy Nordic diet (HND) compared to a Control diet (CD) by plasma and urine metabolic profiles and to associate them with cardiometabolic markers. MethodsDuring 18–24 weeks of… Continue reading Analysis of the SYSDIET Healthy Nordic Diet randomized trial based on metabolic profiling reveal beneficial effects on glucose metabolism and blood lipids
Efficacy of a Fourth Dose of Covid-19 mRNA Vaccine against Omicron
In this open-label, nonrandomized clinical study, we assessed the immunogenicity and safety of a fourth dose of either BNT162b2 (Pfizer–BioNTech) or mRNA-1273 (Moderna) administered 4 months after the third dose in a series of three BNT162b2 doses (ClinicalTrials.gov numbers, NCT05231005. opens in new tab and NCT05230953. opens in new tab; the protocol is available with… Continue reading Efficacy of a Fourth Dose of Covid-19 mRNA Vaccine against Omicron
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