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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
Still Needed: More People Publishing Basically Sensible Thoughts About Treating Aging
It is always pleasant to see people publishing basically sensible thoughts about the treatment of aging as a medical condition. This short example is a good one: realistic, no hype, a sober assessment of the present state of development in academia and industry, yet still optimistic. We still need more of this sort of thing out there in the world, a beacon of common sense to counteract the nonsense-ridden, low-value discussions of aging that are still prevalent in the media whenever the topic arises.
Of the 150,000 deaths that occur on Earth every day, over two thirds of them are due to ageing. This is because, bi...
Source: Fight Aging! - February 1, 2022 Category: Research Authors: Reason Tags: Daily News 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 17th 2022
In conclusion, fibroblasts in monolayers cultured with soluble pentosidine and tridimensional in vitro skin constructs exposed to the combination of AGEs and UVA promote an inflammatory state and an alteration of the dermal compartment in relation to an elastosis-like environment.
Source: Fight Aging! - January 16, 2022 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Fight Aging! Newsletter, January 3rd 2022
In this study, we showed that the iPaD (inducing Plagl2 and anti-Dyrk1a) lentivirus substantially rejuvenated the proliferative and neurogenic potential of NSCs in the aged brain. Clonal analysis by a sparse labeling approach as well as transcriptome analysis indicated that iPaD can rejuvenate aged NSCs (19-21 mo of age) to a level comparable with those at 1 or 2 months of age and successfully improved cognition of aged mice.
Once rejuvenated and activated by iPaD, aged dormant NSCs can generate, on average, 4.9 neurons but very few astrocytes in 3-week tracing. Furthermore, these activated NSCs were maintained for ...
Source: Fight Aging! - January 2, 2022 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
A Look Back at 2021: Progress Towards the Treatment of Aging as a Medical Condition
Well, here we are again, at the end of another pandemic year, a year older and - hopefully - a year wiser and more knowledgeable. I said all that really needs to be said on the topic of COVID-19 as an age-related condition at the end of last year. We might hope that, given widespread vaccination, the pandemic will become a topic of diminishing importance as the year ahead progresses, even given the present round of variants, fears, and reintroduction of restrictions.
Advocacy for Aging Research
Have we finally made significant progress in convincing the world that aging is the cause of age-related disease, th...
Source: Fight Aging! - December 31, 2021 Category: Research Authors: Reason Tags: Of Interest Source Type: blogs
Fight Aging! Newsletter, December 27th 2021
We report that whereas microglia are characterized by marked gene-level alterations related to negative regulation of protein phosphorylation and phagocytic vesicles, astrocytes show activation of enzyme- or peptidase-inhibitor signaling after detectable changes in BBB permeability. We also identify several genes enriched in these pathways that are notably altered after BBB breakdown. Our data reveal that microglia and astrocytes play an active role in maintaining BBB stabilization and corralling infiltrating cells, and thus might potentially function in ameliorating the lesions and neurologic disabilities in CNS diseases....
Source: Fight Aging! - December 26, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Coping when Both Parents Have Dementia
Photo credit Claudia Soraya
There are many different diseases that can cause different types of dementia. My dad's condition resulted from surgery, while Mom's developed more subtly—the type they used to call "senile dementia." Now it is called "organic brain disease." Whatever the type, Alzheimer's disease, vascular, Pick's disease, Parkinson's-related, or just plain "organic brain syndrome," it is painful for the caregiver. Sometimes the pain is so raw and isolating that the caregivers become more ill than those they are caring for. Statistics vary, but upward of thirty percent of caregivers die before the people they ...
Source: Minding Our Elders - December 26, 2021 Category: Geriatrics Authors: Carol Bradley Bursack Source Type: blogs
Fight Aging! Newsletter, December 20th 2021
In conclusion, the low dose, prolonged angiotensin II exposure is associated with the induction of senescence in kidneys and the promotion of an inflammatory microenvironment through both secreted factors and immune cells. Endothelial cells appear to be a major cell type impacted. The elimination of senescent cells in the INK-ATTAC transgenic model prevents these effects of angiotensin II and reveals a novel pathophysiologic mechanism amenable to targeting by senolytic drugs in development.
CYTOR Upregulation as a Path to Improved Muscle Function in Later Life
https://www.fightaging.org/archives/2021/12/cytor-u...
Source: Fight Aging! - December 19, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Fight Aging! Newsletter, December 13th 2021
In conclusion, there is a good amount of pre-clinical and clinical data showing a strong positive correlation between reduction of senescent cells frequencies and functional improvement of skin. Whether senescence of skin cells makes a significant causal contribution to skin ageing can still not be conclusively decided, however. Nonetheless, there is strong evidence existing today to assume that better understanding of cell senescence in skin may lead to a breakthrough in interventions into skin ageing.
Isomerization of Tau May be Involved in Alzheimer's Disease
https://www.fightaging.org/archives/2021/12/isome...
Source: Fight Aging! - December 12, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Fight Aging! Newsletter, November 29th 2021
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...
Source: Fight Aging! - November 28, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Fight Aging! Newsletter, November 22nd 2021
This study nicely illustrates the importance of the cellular metabolic state of myeloid cells: it highlights that not only the availability of glucose, but also its channeling into different pathways (glycolysis versus glycogen synthesis) contributes to maintaining proper myeloid function.
On the Ability of Redundant Blood Vessels to Lower Cardiovascular Mortality
https://www.fightaging.org/archives/2021/11/on-the-ability-of-redundant-blood-vessels-to-lower-cardiovascular-mortality/
A few strategies offer the possibility of growing additional redundant blood vessels, though this is far from rigorously pr...
Source: Fight Aging! - November 21, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Fight Aging! Newsletter, November 15th 2021
This article will review the relationship between diabetes mellitus and AD as it relates to tau pathology. More understanding of the link between diabetes mellitus and AD could change the approach researchers and clinicians take toward both diseases, potentially leading to new treatments and preventative strategies in the future.
Signaling from White Fat Tissue Contributes to Age-Related Hair Follicle Dysfunction
https://www.fightaging.org/archives/2021/11/signaling-from-white-fat-tissue-contributes-to-age-related-hair-follicle-dysfunction/
Changes in fat tissue behavior in the skin take place with age, ...
Source: Fight Aging! - November 14, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Proposing a Staging System for Aging
One logical outcome of a growing ability to treat aging as a medical condition, with therapies that target the underlying causes of aging such as senescent cell accumulation, is that aging will be staged. A patient will be assessed and declared to have stage I aging, or stage III aging, as determined by some combination of factors. The medical community assigns stages to many chronic conditions, an assessment of severity and progression that is used to decide upon treatment strategies. Like those chronic conditions, aging as a whole is the consequence of underlying processes of damage, and has a clear progression. In the p...
Source: Fight Aging! - November 9, 2021 Category: Research Authors: Reason Tags: Daily News Source Type: blogs
