Can nicotinamide riboside protect against cognitive impairment?

Purpose of review The present review aims to address the clinical benefits of using nicotinamide riboside, a precursor to the essential pyridine nucleotide, nicotinamide adenine dinucleotide (NAD+) as a therapeutic agent to attenuate age-related cognitive decline. Recent findings Oral supplementation with nicotinamide riboside can inhibit the accumulation of pathological hallmarks of Alzheimer's disease and improve learning and memory in various murine models for dementia. Nicotinamide riboside can also reduce DNA damage, neuroinflammation, apoptosis, and improved hippocampal synaptic plasticity in diabetic mice, and another Alzheimer's disease mouse model. The cognitive benefits of nicotinamide riboside in Alzheimer's disease models may be modulated in part by upregulation of proliferator-activated-γ coactivator 1α-mediated β-secretase 1(BACE-1) ubiquitination and degradation, preventing Aβ production in the brain. Nicotinamide riboside also maintained blood–brain barrier integrity and maintained the gut microbiota in a mouse model for cerebral small vessel disease and alcohol-induced depression, respectively. Oral nicotinamide riboside has been shown to be bioavailable and well tolerated in humans with limited adverse effects compared to other NAD+ precursors. Summary Oral nicotinamide riboside may represent a promising stratagem to improve cognitive decline during ‘normal’ ageing, Alzheimer's disease and other diseases. Resul...
Source: Current Opinion in Clinical Nutrition and Metabolic Care - Category: Nutrition Tags: MICRONUTRIENT SUPPLEMENTATION AND FUNCTIONAL FOODS: Edited by Nathalie M. Delzenne and Henry C. Lukaski Source Type: research

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Fight Aging! publishes news and commentary relevant to the goal of ending all age-related disease, to be achieved by bringing the mechanisms of aging under the control of modern medicine. This weekly newsletter is sent to thousands of interested subscribers. To subscribe or unsubscribe from the newsletter, please visit: https://www.fightaging.org/newsletter/ Longevity Industry Consulting Services Reason, the founder of Fight Aging! and Repair Biotechnologies, offers strategic consulting services to investors, entrepreneurs, and others interested in the longevity industry and its complexities. To find out m...
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In this study, we sought to elucidate the role of VRK-1 in regulation of adult life span in C. elegans. We found that overexpression of VRK-1::GFP (green fluorescent protein), which was detected in the nuclei of cells in multiple somatic tissues, including the intestine, increased life span. Conversely, genetic inhibition of vrk-1 decreased life span. We further showed that vrk-1 was essential for the increased life span of mitochondrial respiratory mutants. We demonstrated that VRK-1 was responsible for increasing the level of active and phosphorylated form of AMPK, thus promoting longevity. A Fisetin Variant, C...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
Today's open access research materials present a statistical exercise that uses broad epidemiological data to determine the impact of individual lifestyle choices and environmental factors to the incidence of dementia. The results are not declaring that, say, particulate air pollution is responsible for 2% of dementias. Rather if the statistics point out that particulate air pollution is associated with 2% of cases, smoking with 5%, and hearing loss with 8%, then one starts to see priorities in the choices that people should be making to better manage their health over the long term. Summing all of the impacts toget...
Source: Fight Aging! - Category: Research Authors: Tags: Medicine, Biotech, Research Source Type: blogs
There hasn’t been much good news about Alzheimer’s lately, between the March announcement by Biogen and Esai that a promising trial of a potential drug treatment failed, and the July decision by Novartis and Amgen to stop their study of another class of therapies for the neurodegenerative disease. But in a pair of studies presented at the annual Alzheimer’s Association International Conference on July 14, researchers reported encouraging results from studies of non-drug approaches. In one, scientists led by Dr. Klodian Dhana at Rush University Medical Center in Chicago followed nearly 2,500 people for alm...
Source: TIME: Health - Category: Consumer Health News Authors: Tags: Uncategorized Alzheimer's Brain embargoed study Source Type: news
This study shows that mRNA levels of the aging related lamin A splice variant progerin, associated with premature aging in HGPS, were significantly upregulated in subjects with BMI ≥ 25 kg/m2. Moreover, our data revealed a significantly positive correlation of BMI with progerin mRNA. These data provide to our knowledge for the first-time evidence for a possible involvement of progerin in previously observed accelerated aging of overweight and obese individuals potentially limiting their longevity. Our results also showed that progerin mRNA was positively correlated with C-reactive protein (CRP). This might suggest an as...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
Conclusions: Lifestyle factors, such as physical activity, sleep, and social activity appear to be associated with cognitive function among older people. Physical activity and appropriate durations of sleep and conversation are important for cognitive function. Introduction Dementia is a major public health issue worldwide, with a serious burden for patients, caregivers, and society, as well as substantial economic impacts (1). Although the prevalence of late-life cognitive impairment and dementia are expected to increase in future, effective disease-modifying treatments are currently unavailable. Therefore, unders...
Source: Frontiers in Neurology - Category: Neurology Source Type: research
Fight Aging! provides a weekly digest of news and commentary for thousands of subscribers interested in the latest longevity science: progress towards the medical control of aging in order to prevent age-related frailty, suffering, and disease, as well as improvements in the present understanding of what works and what doesn't work when it comes to extending healthy life. Expect to see summaries of recent advances in medical research, news from the scientific community, advocacy and fundraising initiatives to help speed work on the repair and reversal of aging, links to online resources, and much more. This content is...
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Conclusion In this study, reduced CBF and FA and increased MD in the inner NAWM layers for both PVWMH and DWMH suggested extensive WM alterations beyond the visible WM lesions commonly observed on clinical MRI of svMCI subjects. CBF penumbras cover more extensive WM at risk than DTI penumbras, suggesting the likelihood that compromised CBF precedes white matter integrity changes, and CBF penumbras may be a potential target for the prevention of further microstructural white matter damage. The imaging parameters investigated, however, did not correlate to cognition. Author Contributions YZ, QX, and XG conceived and desig...
Source: Frontiers in Neurology - Category: Neurology Source Type: research
In this study, we examined the benefits of early-onset, lifelong AET on predictors of health, inflammation, and cancer incidence in a naturally aging mouse model. Lifelong, voluntary wheel-running (O-AET; 26-month-old) prevented age-related declines in aerobic fitness and motor coordination vs. age-matched, sedentary controls (O-SED). AET also provided partial protection against sarcopenia, dynapenia, testicular atrophy, and overall organ pathology, hence augmenting the 'physiologic reserve' of lifelong runners. Systemic inflammation, as evidenced by a chronic elevation in 17 of 18 pro- and anti-inflammatory cytokin...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
This study looked specifically at the effect of alcohol use disorders, and included people who had been diagnosed with mental and behavioural disorders or chronic diseases that were attributable to chronic harmful use of alcohol.Of the 57,000 cases of early-onset dementia (before the age of 65), the majority (57%) were related to chronic heavy drinking.What is the Difference Between Alzheimer ’s and DementiaSubscribe to the Alzheimer's Reading - This is a Free Service - Join NowLargest study of its kind finds alcohol use biggest risk factor for dementiaOf the 57,000 cases of early-onset dementia (before the age of 65...
Source: Alzheimer's Reading Room, The - Category: Neurology Tags: alcohol dementia alcohol disorder Alzheimers Dementia chocoholic abuse chronic alcohol abuse dementia care dementia risk early onset dementia Source Type: blogs
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