Fight Aging! Newsletter, July 6th 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! - July 5, 2020 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Aging Impacts Progenitor Cells in the Thymus
The age-related decline of the immune system has several causes, but the involution of the thymus is an important one. The thymus is responsible for the production of mature T cells of the adaptive immune system, but the organ atrophies with age. The supply of new T cells falls off dramatically in later life, and without these reinforcements, the adaptive immune system becomes ever more populated with broken, misconfigured, senescent, exhausted, and outright harmful T cells.
A few research groups and companies are investigating ways to restore the thymus, typically by provoking it to regrow. A number of approaches h...
Source: Fight Aging! - July 1, 2020 Category: Research Authors: Reason Tags: Medicine, Biotech, Research 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
Senescence-Associated Secretory Phenotype Proteins as a Biomarker of Aging
In today's open access research, the authors report on the generation of a biomarker of aging from the study of proteins secreted by senescent cells. Low cost assays that map closely to biological age, the burden of damage, are a potentially useful tool for research and development of rejuvenation therapies. This biomarker is likely not general enough for that role; the accumulation of senescent cells with age in tissues throughout the body is just one of a number of mechanisms important in degenerative aging. It is always good to have further evidence that senescent cells are important in aging, to add to the very compell...
Source: Fight Aging! - June 26, 2020 Category: Research Authors: Reason Tags: Medicine, Biotech, Research Source Type: blogs
Fight Aging! Newsletter, May 25th 2020
In conclusion, our results suggest a previously unknown mechanism whereby the canonical NF-κB cascade and a mitochondrial fission pathway interdependently regulate endothelial inflammation.
Lin28 as a Target for Nerve Regeneration
https://www.fightaging.org/archives/2020/05/lin28-as-a-target-for-nerve-regeneration/
Researchers here show that the gene Lin28 regulates axon regrowth. In mice, raised levels of Lin28 produce greater regeneration of nerve injuries. Past research has investigated Lin28 from the standpoint of producing a more general improvement in regenerative capacity. It improves mitochondr...
Source: Fight Aging! - May 24, 2020 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Cellular Senescence in Lung Disease
Today's open access paper is a review of what is known of the role of cellular senescence in lung disease. With the development of senolytic therapies that can selectively destroy senescent cells, all conditions in which senescent cells contribute meaningfully to pathology may soon be effectively treated. Senescent cells accumulate with age in all tissues, and while never a sizable fraction of all cells, even a comparatively small number of senescent cells can cause chronic inflammation and tissue dysfunction. They secrete a mix of inflammatory signals, growth factors, and other molecules that has a sizable effect on the b...
Source: Fight Aging! - May 20, 2020 Category: Research Authors: Reason Tags: Medicine, Biotech, Research Source Type: blogs
Fight Aging! Newsletter, May 4th 2020
The objective is to start treating chronic diseases from the root and not the symptoms of the disease. As we are starting to enroll patients in "senolytics-clinical trials," it will be imperative to assess if senolysis efficiently targets the primary cause of disease or if it works best in combination with other drugs. Additional basic science research is required to address the fundamental role of senescent cells, especially in the established contexts of disease.
Notes on Self-Experimentation with Sex Steroid Ablation for Regrowth of the Thymus
https://www.fightaging.org/archives/2020/04/notes-on-self-experi...
Source: Fight Aging! - May 3, 2020 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Notes on Self-Experimentation with Sex Steroid Ablation for Regrowth of the Thymus
I periodically publish thoughts on self-experiments that seem interesting and relevant to aging. Despite the influence of the quantified self movement, the broader self-experimentation community is largely terrible on matters of research, rigor, reporting, and safety. My motivation is to something to raise the bar on all of these items.
For every discussion I've published on a particular self-experiment, there are half a dozen others sitting at some stage of research and interest. Over the past year or so, I've been on and off looking into sex steroid ablation as a mechanism for thymus regrowth. Since my company, Re...
Source: Fight Aging! - April 30, 2020 Category: Research Authors: Reason Tags: Self-Experimentation Source Type: blogs
Fight Aging! Newsletter, April 6th 2020
This study delves into the mechanisms by which a short period of fasting can accelerate wound healing. Fasting triggers many of the same cellular stress responses, such as upregulated autophagy, as occur during the practice of calorie restriction. It isn't exactly the same, however, so it is always worth asking whether any specific biochemistry observed in either case does in fact occur in both situations. In particular, the period of refeeding following fasting appears to have beneficial effects that are distinct from those that occur while food is restricted.
Multiple forms of therapeutic fasting have been repor...
Source: Fight Aging! - April 5, 2020 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Fight Aging! Newsletter, March 9th 2020
In this study, we intravenously administrated the young mitochondria into aged mice to evaluate whether energy production increase in aged tissues or age-related behaviors improved after the mitochondrial transplantation. The results showed that heterozygous mitochondrial DNA of both aged and young mouse coexisted in tissues of aged mice after mitochondrial administration, and meanwhile, ATP content in tissues increased while reactive oxygen species (ROS) level reduced. Besides, the mitotherapy significantly improved cognitive and motor performance of aged mice. Our study, at the first report in aged animals, not only prov...
Source: Fight Aging! - March 8, 2020 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Fight Aging! Newsletter, February 24th 2020
In conclusion, taller body height at the entry to adulthood, supposed to be a marker of early-life environment, is associated with lower risk of dementia diagnosis later in life. The association persisted when adjusted for educational level and intelligence test scores in young adulthood, suggesting that height is not just acting as an indicator of cognitive reserve.
A Comparison of Biological Age Measurement Approaches
https://www.fightaging.org/archives/2020/02/a-comparison-of-biological-age-measurement-approaches/
Researchers here assess the performance of a range of approaches to measuring biologica...
Source: Fight Aging! - February 23, 2020 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
The Epigenetic Profile of Werner Syndrome is Very Different from that of Aging
The research community has long used progeroid syndromes such as Hutchinson-Gilford progeria syndrome and Werner syndrome as tools in the investigation of aging. This category of conditions are colloquially thought of as accelerated aging, but are in fact only a little similar to aging. The various underling genetic causes of progeria result in accelerated accumulation of cellular damage of various sorts, different in each case, leading to tissue dysfunction and outcomes that resemble a range of normal age-related conditions. Aging is itself a process of damage accumulation, so it isn't surprising to find some degree of si...
Source: Fight Aging! - February 17, 2020 Category: Research Authors: Reason Tags: Daily News Source Type: blogs
Fight Aging! Newsletter, February 10th 2020
In conclusion, the concept of an epigenetic clock is compelling, but caution should be taken in interpreting associations with age acceleration. Association tests of age acceleration should include age as a covariate.
A Discussion of Recent Work on Allotopic Expression of Mitochondrial Genes at the SENS Research Foundation
https://www.fightaging.org/archives/2020/02/a-discussion-of-recent-work-on-allotopic-expression-of-mitochondrial-genes-at-the-sens-research-foundation/
A paper published last month outlines recent progress on allotopic expression of mitochondrial genes carried out by the SENS Research...
Source: Fight Aging! - February 9, 2020 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
A Mechanism by which Chronic Inflammation Spurs Cancer Metastasis
Chronic inflammation is a risk factor for cancer and cancer mortality. There are numerous reasons as to why this might be the case, some much more proven and settled than others, but the research here is focused on metastasis, the spread of cancerous cells throughout the body. Since cancer mortality is largely determined by whether or not a tumor progresses to the point of metastasis, we should not be surprised that researchers can identify mechanisms linking inflammation with metastasis.
Dysregulated inflammation is recognized as one of the hallmarks of cancer and is involved in tumor initiation, progression, an...
Source: Fight Aging! - February 5, 2020 Category: Research Authors: Reason Tags: Daily News Source Type: blogs
Fight Aging! Newsletter, January 20th 2020
This study provides strong evidence that following a healthy lifestyle can substantially extend the years a person lives disease-free."
Commentary on Recent Evidence for Cognitive Decline to Precede Amyloid Aggregation in Alzheimer's Disease
https://www.fightaging.org/archives/2020/01/commentary-on-recent-evidence-for-cognitive-decline-to-precede-amyloid-aggregation-in-alzheimers-disease/
I can't say that I think the data presented in the research noted here merits quite the degree of the attention that it has been given in the popular science press. It is interesting, but not compelling if its role is ...
Source: Fight Aging! - January 19, 2020 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
