Fight Aging! Newsletter, August 23rd 2021
In this study, we used the UK Biobank (n = 440,185) to resolve previous ambiguities in the relationship between serum IGF-1 levels and clinical disease. We examined prospective associations of serum IGF-1 with mortality, dementia, vascular disease, diabetes, osteoporosis, and cancer, finding two generalized patterns.
First, IGF-1 interacts with age to modify risk in a manner consistent with antagonistic pleiotropy; younger individuals with high IGF-1 are protected from disease, while older individuals with high IGF-1 are at increased risk for incident disease or death. Second, the association between IGF-1 and risk ...
Source: Fight Aging! - August 22, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Fight Aging! Newsletter, August 16th 2021
In conclusion, cancer survivors, especially older individuals, demonstrate greater odds of and accelerated functional decline, suggesting that cancer and/or its treatment may alter aging trajectories.
Linking Particulate Air Pollution and Dementia in a Small Region of the US
https://www.fightaging.org/archives/2021/08/linking-particulate-air-pollution-and-dementia-in-a-small-region-of-the-us/
It is fairly settled that evident particulate air pollution, such as daily exposure to smoke from wood-fueled cooking fires, has a strongly detrimental effect on long-term health. The mechanisms involved are inflam...
Source: Fight Aging! - August 15, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Fight Aging! Newsletter, July 19th 2021
In this study, we developed the first epigenetic clock for domesticated sheep (Ovis aries), which can predict chronological age with a median absolute error of 5.1 months. We have discovered that castrated male sheep have a decelerated aging rate compared to intact males, mediated at least in part by the removal of androgens.
Furthermore, we identified several androgen-sensitive CpG dinucleotides that become progressively hypomethylated with age in intact males, but remain stable in castrated males and females. Comparable sex-specific methylation differences in MKLN1 also exist in bat skin and a range of mouse tissu...
Source: Fight Aging! - July 18, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Fight Aging! Newsletter, June 21st 2021
This study showed that the leakage of this mitochondrial nucleic material may occur as a result of mitochondrial dysfunction, which may involve genetic mutations in genes encoding mitochondrial proteins or incomplete degradation of mitochondrial dsDNA in the lysosome - which is a 'degradation factory' of the cell. Upon the leakage into the cytoplasm, this undegraded dsDNA is detected by a 'foreign' DNA sensor of the cytoplasm (IFI16) which then triggers the upregulation of mRNAs encoding for inflammatory proteins."
Using a PD zebrafish model (gba mutant), the researchers demonstrated that a combination of PD-like ph...
Source: Fight Aging! - June 20, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Fight Aging! Newsletter, April 5th 2021
In this study, the research team designed a way to identify small molecules that improve the function of ABCA1 in the body while avoiding unwanted effects to the liver. The researchers honed in on a specific small molecule, CL2-57, due to its ability to stimulate ABCA1 activity with positive effects on liver and plasma triglycerides. The use of this compound showed improved glucose tolerance and insulin sensitivity, as well as reduced weight gain, among other beneficial effects.
Age-Related Upregulation of Autophagy as a Possible Contribution to Bat Longevity
https://www.fightaging.org/archives/2021/04/age-rel...
Source: Fight Aging! - April 4, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
My Benjamin Hartman Story
“I need intravenous Beefsteak,” I texted my forever-Beefsteak date Ben Hartman, who others called Benjie or Bean or sometimes Boozey, and who I called Kryptonite or sometimes Sushi Ben. “See you there at 6:30,” he texted back. Since meeting in 2014, we each accommodated the other when it came to Beefsteak — a fast-casual restaurant near George Washington University that served paleo-friendly fare before paleo was cool and offered outdoor seating long before covid-19. My gcalendar archive shows that we made seven Beefsteak dates in advance, though that’s a fraction of our total as most stemmed fro m mi...
Source: cancerslayerblog - December 5, 2020 Category: Cancer & Oncology Tags: death life lessons Source Type: blogs
Health Care 101 Continued: The allocation problem
We often hear sentiments to the effect that human life is infinitely precious, that you can ' t put a price on human life. While most people probably think this instinctively, it is conservatives, and particularly religious conservatives, who are most likely to try to apply the concept in reality. Do you remember the ravings about " death panels " when the Affordable Care Act passed? Of course there ' s nothing in the ACA that could conceivably be construed that way, but the scary meme was imported from arguments about single payer or, as in the UK, socialized medicine schemes.To put this in the simplest and starkest terms...
Source: Stayin' Alive - October 23, 2020 Category: American Health Source Type: blogs
Fight Aging! Newsletter, October 12th 2020
We report that FMT from aged donors led to impaired spatial learning and memory in young adult recipients, whereas anxiety, explorative behaviour, and locomotor activity remained unaffected.
This was paralleled by altered expression of proteins involved in synaptic plasticity and neurotransmission in the hippocampus. Also, a strong reduction of bacteria associated with short-chain fatty acids (SCFAs) production (Lachnospiraceae, Faecalibaculum, and Ruminococcaceae) and disorders of the CNS (Prevotellaceae and Ruminococcaceae) was observed. Finally, the detrimental effect of FMT from aged donors on the CNS was confir...
Source: Fight Aging! - October 11, 2020 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Fight Aging! Newsletter, August 24th 2020
We report that electrical stimulation (ES) stimulation of post-stroke aged rats led to an improved functional recovery of spatial long-term memory (T-maze), but not on the rotating pole or the inclined plane, both tests requiring complex sensorimotor skills. Surprisingly, ES had a detrimental effect on the asymmetric sensorimotor deficit.
Histologically, there was a robust increase in the number of doublecortin-positive cells in the dentate gyrus and SVZ of the infarcted hemisphere and the presence of a considerable number of neurons expressing tubulin beta III in the infarcted area. Among the genes that were unique...
Source: Fight Aging! - August 23, 2020 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Towards Better Vaccines and a Lower Burden of Infectious Disease in Old People
Over a lifetime, the burden of infectious disease - and particularly persistent infections such as cytomegalovirus - influences the pace of aging via its detrimental impact on immune function in later life. The slow upward trend in life expectancy over the past two centuries is due in no small part to reductions in infectious disease that accompanied improvements in sanitation and then medicine. In addition, in old age, once the immune system declines into ineffectieness, infectious disease becomes a much more serious concern. Infections that a young person defeats with ease become life-threatening. The primary strategy to...
Source: Fight Aging! - August 17, 2020 Category: Research Authors: Reason Tags: Medicine, Biotech, Research Source Type: blogs
Fight Aging! Newsletter, July 13th 2020
In conclusion, sitting for prolonged periods of time without interruption is unfavorably associated with DBP and HDL cholesterol.
Exercise Slows Inappropriate Growth of Blood Vessels in a Mouse Model of Macular Degeneration
https://www.fightaging.org/archives/2020/07/exercise-slows-inappropriate-growth-of-blood-vessels-in-a-mouse-model-of-macular-degeneration/
Excessive growth of blood vessels beneath the retina is a proximate cause of blindness in conditions such as macular degeneration. Researchers here provide evidence for physical activity to be influential in the pace at which this process of tissu...
Source: Fight Aging! - July 12, 2020 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Fight Aging! Newsletter, June 29th 2020
In conclusion, metabolomics is a promising approach for the assessment of biological age and appears complementary to established epigenetic clocks.
Sedentary Behavior Raises the Risk of Cancer Mortality
https://www.fightaging.org/archives/2020/06/sedentary-behavior-raises-the-risk-of-cancer-mortality/
Living a sedentary lifestyle is known to be harmful to long term health, raising the risk of age-related disease and mortality. Researchers here show that a sedentary life specifically increases cancer mortality, and does so independently of other factors. This is one of many, many reasons to maintain a r...
Source: Fight Aging! - June 28, 2020 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Germline Mutation Rate as an Insight into the Pace of Aging
DNA sequencing over generations can be used to determine individual rates of germline mutation, as mutations present in the child but not the parent must have occurred in the parent germline. Stochastic nuclear DNA damage takes place over the course of aging, and evidence suggests that this correlates with the pace at which a person is aging. While nuclear DNA damage determines cancer risk, the degree to which it contributes to other forms of age-related degeneration is an open question. Only damage occurring in stem cells or progenitor cells, and that can thus spread through tissue in daughter somatic cells, seems likely ...
Source: Fight Aging! - June 26, 2020 Category: Research Authors: Reason Tags: Daily News Source Type: blogs
Fight Aging! Newsletter, June 1st 2020
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,
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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! - May 31, 2020 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
