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Fight Aging! Newsletter, March 14th 2022
This study tests the feasibility of chronically elevating skeletal muscle NAD+ in mice and investigates the putative effects on mitochondrial respiratory capacity, insulin sensitivity, and gene expression. The metabolic effects of NR and PT treatment were modest. We conclude that the chronic elevation of skeletal muscle NAD+ by the intravenous injection of NR is possible but does not affect muscle respiratory capacity or insulin sensitivity in either sedentary or physically active mice. Our data have implications for NAD+ precursor supplementation regimens.
Muscle Strengthening Activities in Later Life Correlate ...
Source: Fight Aging! - March 13, 2022 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Clearance of Senescent Cells is a Promising Approach to the Treatment of Alzheimer ' s Disease
Today's open access review discusses the growing burden of cellular senescence with age in the context of brain tissue and neurodegenerative disease. Cells become senescent constantly throughout life, largely the result of ordinary somatic cells hitting the Hayflick limit on replication, but also, and increasingly with age, due to a stressful, damaging, inflammatory environment. Senescent cells serve a useful purpose when present for the short term, in the context of wound healing or cancer suppression for example, by rousing the immune system into action and changing the behavior of nearby cells. But the signaling of sene...
Source: Fight Aging! - March 10, 2022 Category: Research Authors: Reason Tags: Medicine, Biotech, Research Source Type: blogs
Fight Aging! Newsletter, March 7th 2022
This study estimates that prescreening with a 500 blood test could reduce by half both the cost and the time it takes to enroll patients in clinical trials that use PET scans. Screening with blood tests alone could be completed in less than six months and cut costs by tenfold or more, the study finds. Known as Precivity AD, the commercial version of the test is marketed by C2N Diagnostics. The current study shows that the blood test remains highly accurate, even when performed in different labs following different protocols, and in different cohorts across three continents.
xCT Knockout Modestly Extends Life in M...
Source: Fight Aging! - March 6, 2022 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
What Has A.I. In Medicine Ever Done For Us? At Least 50 Things!
Remember Monty Python’s brilliant Life of Brian movie scene where the Judean Jewish insurgent commando, planning the abduction of Pilate’s wife in return for all the horrors they had to endure from the Roman Empire, asks the rhetorical question: what have the Romans ever done for us? With the hype and overmarketing, not to speak about the fears around A.I, we asked the same question. What has A.I. in medicine ever done for us? Well, we found at least 50 things.
I have 50 responses to the pressing question on everyone’s mind who is interested in healthcare but tired of the hype or the doomsday scenarios around A.I....
Source: The Medical Futurist - March 1, 2022 Category: Information Technology Authors: berci.mesko Tags: Artificial Intelligence in Medicine Future of Medicine AI cancer diagnostics digital health Healthcare Innovation medical Radiology technology medical imaging treatment administration digital health technology Source Type: blogs
Fight Aging! Newsletter, February 28th 2022
In conclusion, as BMI and waist circumference are related to elevations of immune markers in the IL-6 pathway, chronic inflammation might be an important mediator of the relationship between BMI and frailty.
Fat Tissue Becomes Dysfunctional with Age as Mitochondria Falter
https://www.fightaging.org/archives/2022/02/fat-tissue-becomes-dysfunctional-with-age-as-mitochondria-falter/
Mitochondria are effectively power plants, hundreds of them working in every cell to produce chemical energy store molecules to power cellular processes. Mitochondrial function declines with age, unfortunately, for underlying re...
Source: Fight Aging! - February 27, 2022 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Fight Aging! Newsletter, February 21st 2022
In conclusion, clinical trials targeting aging in humans have shown promising but limited results on biomarkers so far.
Mycobacterium Vaccae Immunization as an Anti-Inflammatory Strategy
https://www.fightaging.org/archives/2022/02/mycobacterium-vaccae-immunization-as-an-anti-inflammatory-strategy/
In today's open access paper, researchers discuss immunization with Mycobacterium vaccae as an approach to reduce the inflammatory overactivity of the aged immune system. Researchers have made some initial inroads into studying the way in which this bacteria can alter the function of the immune system, and here...
Source: Fight Aging! - February 20, 2022 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
A Hypothetical Project: the Fast Track to Partial Reprogramming in Human Volunteers
In a recent post, I suggested that is practical and useful for small organizations to run low-cost clinical trials in large numbers in order to build physician support for treatments for aging that should, by rights, already be in the clinic. The senolytic treatment of dasatinib and quercetin is the most obvious candidate, given its low cost, availability for off-label use, broad, large, and reliable benefits in animal models of aging and age-related disease, and human evidence for efficacy in clearing senescent cells to a similar degree as it does in mice.
Today I'll propose a different angle on early, small trials...
Source: Fight Aging! - February 14, 2022 Category: Research Authors: Reason Tags: Activism, Advocacy and Education Source Type: blogs
Fight Aging! Newsletter, February 14th 2022
In conclusion, this first examination of the effects of age and the ageing process on the small intestinal microbiome demonstrates that the duodenal microbiome changes with increasing age, with significant decreases in duodenal microbial diversity due to increased prevalence of phylum Proteobacteria, particularly coliforms and anaerobic taxa. Given the key roles of small intestinal microbes in nutrient absorption and host metabolism, these changes may be clinically relevant for human health during the ageing process.
Naked Mole Rats Exhibit Minimal Cardiac Aging
https://www.fightaging.org/archives/2022/02/naked...
Source: Fight Aging! - February 13, 2022 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Fight Aging! Newsletter, February 7th 2022
In this study, we used accelerometer measurements (1) to examine the association of physical activity and mortality in a population-based sample of US adults and (2) to estimate the number of deaths prevented annually with modest increases in moderate-to-vigorous physical activity (MVPA) intensity.
This analysis included 4,840 participants. Increasing MVPA by 10, 20, or 30 minutes per day was associated with a 6.9%, 13.0%, and 16.9% decrease in the number of deaths per year, respectively. We estimated that approximately 110,000 deaths per year could be prevented if US adults aged 40 to 85 years or older increased th...
Source: Fight Aging! - February 6, 2022 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
MRI-Guided Magnetic Seeds Heat and Destroy Tumors
Scientists at University College London have developed a highly targeted anti-tumor treatment. The approach involves guiding ferromagnetic thermoseeds to the site of a tumor using the magnetic fields generated by an MRI scanner. The magnetic seeds ca...
Source: Medgadget - February 4, 2022 Category: Medical Devices Authors: Conn Hastings Tags: Neurosurgery Oncology Radiation Oncology Radiology Source Type: blogs
More Evidence for TGF- β as an Important Factor in the Spread of Cellular Senescence
We present evidence that senescence can be transmitted to and affect the function of distant organs in a systemic manner. In the context of acute injury, senescence has often been described as part of a finely-tuned mechanism with overall beneficial effects for wound healing. As described by others, SASP factors are able to induce reprogramming in neighbouring cells, facilitating tissue regeneration. However, following severe injury, this mechanism may have the opposite effect, through excessive SASP production, including senescence- and reprogramming-inducing factors. This excess of SASP factors may enter the circulation ...
Source: Fight Aging! - February 2, 2022 Category: Research Authors: Reason Tags: Medicine, Biotech, Research Source Type: blogs
Fight Aging! Newsletter, January 31st 2022
In conclusion, the effects of MR on the gut barrier were likely related to alleviation of the oscillations of inflammation-related microbes. MR can enable nutritional intervention against age-related gut barrier dysfunction.
Clearing Senescent Cells from the Neural Stem Cell Niche Rapidly Improves Neurogenesis in Old Mice
https://www.fightaging.org/archives/2022/01/clearing-senescent-cells-from-the-neural-stem-cell-niche-rapidly-improves-neurogenesis-in-old-mice/
Neurogenesis is the generation of new neurons in the brain, and their integration into existing neural circuits. It is essential to learning an...
Source: Fight Aging! - January 30, 2022 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
A Biomarker of Aging Based on Retinal Images
Researchers here discuss analysis of images of the retina as a way to produce biomarkers of aging. Older people with a predicted age that is higher than their chronological age, based on retinal imagery, exhibit a higher mortality rate. The growing diversity of clocks estimating biological age illustrate that just about every sizable set of biological data can mined to produce algorithmic combinations of data that correlate with mortality and incidence of age-related disease. Producing these clocks is the easy part of the task. It will be harder to calibrate and understand the clocks well enough to use them to assess the e...
Source: Fight Aging! - January 26, 2022 Category: Research Authors: Reason Tags: Daily News Source Type: blogs
Fight Aging! Newsletter, January 24th 2022
In conclusion, senolytic drugs have shown promising results in the elimination of senescent cells and in alleviating various diseases in animal models. However, in patients, there is a paucity in data on the efficacy and safety of senotherapeutics from clinical trials, including systemic effects and side-effects. In this regard it is important to assess the specificity of senolytics in killing targeted senescent cells and their cytotoxic effects, to identify reliable markers for intervention responses, to elucidate interactions with comorbidities and other drugs, and to standardise administration protocols.
FOXO3...
Source: Fight Aging! - January 23, 2022 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Gameto Raises $20M at an Early Stage to Focus on Ovarian Aging
One of the signs of investor enthusiasm for an industry is the existence of projects that raise significant funding at a very early stage of their development. We're seeing that happen for cellular reprogramming, but companies started by well-connected individuals in other parts of the longevity industry are now raising a great deal of funding in early preclinical stages of development. This suggests that we will continue to see a growing influx of capital into the development of ways to treat aging as a medical condition, pulling more research projects out of the constraints of academia and into an environment of greater ...
Source: Fight Aging! - January 18, 2022 Category: Research Authors: Reason Tags: Daily News Source Type: blogs
