Fight Aging! Newsletter, October 31st 2022
This study used mice to evaluate how their lifestyles - eating fatty foods vs. healthy and exercising vs. not - affected the metabolites of their offspring. Metabolites are substances made or used when the body breaks down food, drugs or chemicals, or its own fat or muscle tissue. "We have previously shown that maternal and paternal exercise improve health of offspring. Tissue and serum metabolites play a fundamental role in the health of an organism, but how parental exercise affects offspring tissue and serum metabolites has not yet been investigated."
Researchers used targeted metabolomics - the study of metaboli...
Source: Fight Aging! - October 30, 2022 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
An Age of Metabolomics
Obtaining enormous amounts of data on the human metabolome now costs little. Databases of metabolomic data available for analysis have become vast, and continue to grow. Productive analysis trails far behind the production of data, unfortunately, as is true for all of the omics technologies. In this paper, researchers discuss the present state of metabolomic knowledge in the context of aging, and the path forward to producing useful understanding from this deluge of human data, contributing perhaps to the better development of treatments for aging.
Aging is a fundamental part of the human experience, and it has lo...
Source: Fight Aging! - October 27, 2022 Category: Research Authors: Reason Tags: Daily News Source Type: blogs
Fight Aging! Newsletter, October 24th 2022
This study shows the uncoupling of lifespan and healthspan parameters (aerobic fitness and spontaneous activity) and provides new insights into SIRT3 function in CR adaptation, fuel utilization, and aging.
HDL Level, Age, and Smoking are the Largest Determinants of Mortality Risk in Old People
https://www.fightaging.org/archives/2022/10/hdl-level-age-and-smoking-are-the-largest-determinants-of-mortality-risk-in-old-people/
An interesting epidemiological study here stratifies the contributions of various metrics to mortality in later life, age 70 and older. The authors find that the largest effects arise...
Source: Fight Aging! - October 23, 2022 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Notes from the Rejuvenation Startup Summit, Held in Berlin in October 2022
We presented recent results showing reversal of liver inflammation and fibrosis in NASH model mice, and noted that we're raising funds to start our clinical development program leading to human trials. Therapies to reverse atherosclerosis progression will follow shortly on the heels of this work on NASH.
Robin Mansukhani of Deciduous Therapeutics discussed their approach to immune system modulation via small molecules, training invariant natural killer cells to attack senescent cells. The point was made that engaging the immune system may be a way to work around many of the present unknowns regarding senescent cell ...
Source: Fight Aging! - October 19, 2022 Category: Research Authors: Reason Tags: Healthy Life Extension Community Source Type: blogs
Fight Aging! Newsletter, October 17th 2022
This study investigated whether multimorbidity is associated with incident dementia and whether associations vary by different clusters of disease and genetic risk for dementia. The study used data from the UK Biobank cohort, with baseline data collected between 2006 and 2010 and with up to 15 years of follow-up. Participants included women and men without dementia and aged at least 60 years at baseline. The presence of at least 2 long-term conditions from a preselected list of 42 conditions was used to define multimorbidity.
A total of 206,960 participants (mean age 64.1 years) were included in the final sample, of...
Source: Fight Aging! - October 16, 2022 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Mitochondrial Stress Provokes Inflammation via Fragments of Mitochondrial DNA
A large body of evidence links mitochondrial dysfunction with chronic inflammation. These are both features of aging, but it appears that dysfunctional, stressed mitochondria are a meaningful cause of inflammatory signaling. Mitochondria can generate molecular fragments, such as pieces of mitochondrial DNA, that are recognized as potentially threatening by the innate immune system. These damage-associated molecular patterns are present in much greater amounts in old tissues, and the immune system reacts to them to produce lasting, unresolved inflammation, harmful to tissue function rather than protective.
In today's...
Source: Fight Aging! - October 12, 2022 Category: Research Authors: Reason Tags: Medicine, Biotech, Research Source Type: blogs
Fight Aging! Newsletter, October 10th 2022
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! - October 9, 2022 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Commentary on Old Age in the International Classification of Diseases
The world of medicine and medical research is regulated to the point of extreme dysfunction. Regulation determines the flows of funding in the clinic, which in turn determines priorities for research and development. To swim against the tide is significantly harder than to go along with it, and this has a material effect on the speed with which the scientific community and biotech and pharmaceutical industries can create and deploy therapies to treat aging. Even the prospect of treating aging as a medical condition at all is shadowed by the way in which regulation distorts the playing field. Yes, a working, proven rejuvena...
Source: Fight Aging! - October 3, 2022 Category: Research Authors: Reason Tags: Politics and Legislation Source Type: blogs
Fight Aging! Newsletter, October 3rd 2022
In conclusion, based on the analysis of proteomics and transcriptome, we identified four SRMs that may affect aging and speculated their possible mechanisms, which provides a new target for preventing aging, especially skin aging.
A Popular Science Article on the State of Epigenetic Clocks
https://www.fightaging.org/archives/2022/09/a-popular-science-article-on-the-state-of-epigenetic-clocks/
This popular science article is a good view of the present state of development and use of epigenetic clocks, covering the issues as well as the promise. Epigenetic age can be measured, with many different clocks...
Source: Fight Aging! - October 2, 2022 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Fight Aging! Newsletter, September 26th 2022
This study examined the dose-response association between daily step count and intensity and incidence of all-cause dementia among adults in the UK. This was a UK Biobank prospective population-based cohort study (February 2013 to December 2015) with 6.9 years of follow-up (data analysis conducted May 2022). A total of 78,430 of 103,684 eligible adults aged 40 to 79 years with valid wrist accelerometer data were included. Registry-based dementia was ascertained through October 2021.
We found no minimal threshold for the beneficial association of step counts with incident dementia. Our findings suggest that approxima...
Source: Fight Aging! - September 25, 2022 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Decreased SPARC in Fat Tissue Reduces Chronic Inflammation
SPARC is one of a number of proteins that mediate interactions between cells and the extracellular matrix. Researchers here note that SPARC is connected to the chronic inflammation of aging, and the relationship between visceral fat tissue and inflammatory signaling, perhaps largely via its influence on whether macrophages adopt inflammatory behaviors in response to their environment. Reducing the amount of SPARC in fat tissue reduces chronic inflammation and thereby improves health, and this may be a meaningful mechanism in the way in which calorie restriction produces lowered inflammation and improved health. Therapies t...
Source: Fight Aging! - September 21, 2022 Category: Research Authors: Reason Tags: Daily News Source Type: blogs
Fight Aging! Newsletter, September 19th 2022
Conclusion
Use of the Khavinson peptides and melatonin in combination in this way, at this dose, negatively impacts the thymus, producing a reduction in active tissue and increase in atrophy to fatty tissue. The degree to which this atrophy occurred is greater than one would expect to take place over nine months of aging at this stage of life.
Why did this outcome occur, given the animal studies showing thymic regrowth, and the studies showing reduced later life mortality following use of thymogen? We can only speculate. Firstly, the dose makes the poison, and the dosing here may have been too high, too frequ...
Source: Fight Aging! - September 18, 2022 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
SENS Research Foundation Annual Reports for 2022
The SENS Research Foundation has published its annual reports for 2022, for those interested. SENS, the Strategies for Engineered Negligible Senescence, is both (a) a laundry list of forms of cell and tissue damage that cause aging, with supporting evidence from the past century of scientific research into aging, and (b) a laundry list methods of intervention that should produce rejuvenation. Aging is damage accumulation, and rejuvenation is repair of that damage.
Funding for SENS programs, and initiatives to produce therapies based on the SENS view of damage repair, remain as relevant as ever. In fact, even more re...
Source: Fight Aging! - September 14, 2022 Category: Research Authors: Reason Tags: Healthy Life Extension Community Source Type: blogs
Viral Infection as a Contributor to the Burden of Cellular Senescence
This open access paper discusses the evidence for viral infections to increase the burden of cellular senescence, specifically in the context of atherosclerosis and immunosenescence in aging. Viral infection is thought to contribute to both issues, and from what is known of the role of increased numbers of senescent cells in aging, it is possible that increased senescent cells numbers is a significant mechanism. Certainly, we should hope to see researchers establish that a great deal of degenerative aging, accelerated by viral infection or otherwise, can be blamed on the unwanted activities of lingering senescent cells. Th...
Source: Fight Aging! - September 13, 2022 Category: Research Authors: Reason Tags: Daily News Source Type: blogs
Fight Aging! Newsletter, September 12th 2022
Discussion of Present Drug Development to Target Senescent Cells
Targeting Senescent Cells to Better Address Cancer and Consequences of Cancer Therapy
Calorie Restriction Suppresses Generation of Immune Cells via Changes to the Gut Microbiome
Arguing for an Expansion of the Hallmarks of Aging
https://www.fightaging.org/archives/2022/09/arguing-for-an-expansion-of-the-hallmarks-of-aging/
The hallmarks of aging form a catalog of largely better studied changes in cells and tissues considered relevant, and possibly more important, in the onset and development of age-related degeneration and disease. Thi...
Source: Fight Aging! - September 11, 2022 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
