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Therapy: Stem Cell Therapy

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DNA Damage Leads to Inflammation in the Stem Cell Microenvironment
This open access paper reviews the relationship between DNA damage and inflammation in the specialized environments that support stem cell populations. Aging produces many changes that lead to reduced stem cell function. Changes in the niche, the supporting cells that help to ensure stem cells retain their function, are of increasing interest to the research community. The chronic inflammation of aging is also an area of growing study. The inflammatory response to rising levels of DNA damage with age in stem cells and stem cell niches is an interesting overlap between these two parts of the field. DNA damage profo...
Source: Fight Aging! - November 8, 2021 Category: Research Authors: Reason Tags: Daily News Source Type: blogs

Fight Aging! Newsletter, November 8th 2021
In conclusion, in less common and visible cardiovascular diseases, it is crucial to recognize substantial progress and achievement, given that penetration of such information into clinical practice and the patient community can be inconsistent. Diseases such as hypertrophic cardiomyopathy, pulmonary arterial hypertension, and ATTR cardiac amyloidosis, once linked to a uniformly adverse prognosis, are now associated with the opportunity for patients to experience satisfactory quality of life and extended longevity. VitaDAO, a Novel Approach to Crowdfunding Life Science Research https://www.fightaging.org/archive...
Source: Fight Aging! - November 7, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs

The Tumor Suppression Theory of Aging
While they cannot explain aging as a whole, single cause theories of aging can be useful tools to frame discussion and investigation aimed at better understanding aging and its evolution. The theory presented here is aging viewed through the lens of cancer, two entwined processes. Aging is viewed as largely a consequence of tumor suppression mechanisms that evolved to keep cancer at a low enough incidence for successful selection and continuation of the species. Cancer and evolution are themselves in a dynamic, competing equilibrium. Evolution requires a certain minimal rate of spontaneous mutation, while cancer thrives on...
Source: Fight Aging! - November 4, 2021 Category: Research Authors: Reason Tags: Daily News Source Type: blogs

Atherosclerosis, the As Yet Undefeated Monster
As you may know, I co-founded Repair Biotechnologies, a company presently focused on developing an approach to rapidly reverse the cholesterol content of atherosclerotic lesions, a goal that is impossible to achieve using the existing panoply of treatments for atherosclerosis. We use gene therapy techniques to provide cells with the ability to safely break down excess cholesterol, enabling the removal of pathological levels of intracellular cholesterol and localized deposits of extracellular cholesterol that characterize conditions such as atherosclerosis (in blood vessel walls) and NASH (in the liver). Atherosclerosis is ...
Source: Fight Aging! - November 2, 2021 Category: Research Authors: Reason Tags: Healthy Life Extension Community Source Type: blogs

Fight Aging! Newsletter, November 1st 2021
In conclusion, mitophagy pathways play an important role in maintaining physiological homeostasis, are involved in the mechanisms of aging and neurodegenerative disorders, and represent promising targets for the development of potential therapeutic agents aimed at regulating mitochondria quality control in neurons and glial cells. A significant number of molecules that induce or inhibit mitophagy are currently under consideration, which may be useful for testing hypotheses or developing drugs for the treatment of neurodegenerative diseases. The validation of promising drugs in animal and cell models, including neurons and ...
Source: Fight Aging! - October 31, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs

Organoids in the Study of Aging
Over the course of the past twenty years, researchers have established the techniques needed to grow small volumes of functional tissue for many organ types. Lacking blood vessel networks, these organoids are at most a few millimeters in size; any larger and nutrients cannot perfuse to the innermost cells. There will be a use for organoids grown from a patient's own cells or from universal cell lines in transplantation therapies, such as those developed by Lygenesis. As researchers note here, however, by far the greatest use at present is to produce models for research. Patient-derived organoids are self-organized...
Source: Fight Aging! - October 28, 2021 Category: Research Authors: Reason Tags: Daily News Source Type: blogs

Extracellular Vesicles in Aging and Rejuvenation
Extracellular vesicles carry the bulk of communication between cells. The use of extracellular vesicles to adjust cell function and spur regeneration in aged tissues is a logical step beyond stem cell therapies. Much of the benefit of first generation stem cell therapies is mediated by the release of vesicles by transplanted cells, in the short time before those cells fail to engraft and consequently die. Harvesting, storing, and injecting these vesicles is a logistically easier prospect than working with cells; even now, exosomes from stem cell populations can be purchased at a fraction of the cost of stem cell therapies....
Source: Fight Aging! - October 25, 2021 Category: Research Authors: Reason Tags: Daily News Source Type: blogs

Fight Aging! Newsletter, October 25th 2021
This study confirmed that the PSI could be a quantitative index of vascular aging and has potential for use in inferring arterial stiffness with an advantage over the rAIx. A Profile of Michael Greve and the Segment of the Longevity Industry that He Supports https://www.fightaging.org/archives/2021/10/a-profile-of-michael-greve-and-the-segment-of-the-longevity-industry-that-he-supports/ Would that the popular media produced more popular science articles about the longevity industry like this one. It is not just a profile of someone trying to make a difference in the world by advancing the state of medici...
Source: Fight Aging! - October 24, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs

Calorie Restriction versus Cancer, Viewed in Terms of Growth Signaling
The practice of calorie restriction, eating fewer calories while still obtaining sufficient micronutrients, is well demonstrated to reduce cancer risk in animal models, and also appears to improve outcomes in the case of an established cancer. This is similarly the case for practices such as intermittent fasting or fasting mimicking diets, the latter having undergone trials as an adjuvant therapy in human cancer patients. Researchers here review this topic through the lens of nutrient sensing and growth signaling in the body, such as the well studied pathways involving growth hormone and IGF-1. More growth means more DNA d...
Source: Fight Aging! - October 18, 2021 Category: Research Authors: Reason Tags: Daily News Source Type: blogs

Fight Aging! Newsletter, October 18th 2021
In this study, we therefore analysed the influence of lithium treatment on lifespan and parameters of health during ageing in mice. To determine the concentration of lithium suitable to be administered in a longitudinal ageing study, we first tested the effects of lithium chloride (LiCl) in doses from 0.01 to 2.79 g LiCl per kg chow. C57Bl/6J mice fed with 1.05-2.79 g/kg LiCL in the diet showed lithium plasma levels between 0.4 and 0.8 mM/l. While plasma levels to 0.4 and 0.8 mM/l are well tolerated by human patients, at doses above 1.44 g LiCl/kg, we observed an obvious dose-dependent polydipsia combined with a dis...
Source: Fight Aging! - October 17, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs

Fight Aging! Newsletter, October 11th 2021
In conclusion, this study examined how age and the process of aging are associated with changes in the microbiome of the small intestine, using validated sampling and processing techniques. The most significant differences are higher relative abundance of the phylum Proteobacteria and decreased relative abundance of Bacteroidetes in older subjects when compared to the youngest group. The higher relative abundance of Proteobacteria appeared to affect other duodenal microbial taxa, leading to decreased microbial diversity and increased relative abundance of coliforms and of anaerobic bacteria. The small intestine is vital to...
Source: Fight Aging! - October 10, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs

Fight Aging! Newsletter, October 4th 2021
In conclusion, premature thymic involution and chronic inflammation greatly contribute to increased morbidity and mortality in CKD patients. Mechanisms are likely to be multiple and interlinked. Even when the quest to fountain of youth is a pipe dream, there are many scientific opportunities to prevent or to, at least in part, reverse CKD-related immune senescence. Further studies should precisely define most important pathways driving premature immune ageing in CKD patients and best therapeutic options to control them. Extending Life Without Extending Health: Vast Effort Directed to the Wrong Goals https://www...
Source: Fight Aging! - October 3, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs

Chronic Kidney Disease and an Accelerated Aging of the Immune System
In conclusion, premature thymic involution and chronic inflammation greatly contribute to increased morbidity and mortality in CKD patients. Mechanisms are likely to be multiple and interlinked. Even when the quest to fountain of youth is a pipe dream, there are many scientific opportunities to prevent or to, at least in part, reverse CKD-related immune senescence. Further studies should precisely define most important pathways driving premature immune ageing in CKD patients and best therapeutic options to control them.
Source: Fight Aging! - September 29, 2021 Category: Research Authors: Reason Tags: Medicine, Biotech, Research Source Type: blogs

Fight Aging! Newsletter, September 27th 2021
This study provides causal evidence of a lipoprotein-Aß /capillary axis for onset and progression of a neurodegenerative process. The Staggering Ongoing Cost of Failing to Aggressively Pursue the Development of Rejuvenation Therapies https://www.fightaging.org/archives/2021/09/the-staggering-ongoing-cost-of-failing-to-aggressively-pursue-the-development-of-rejuvenation-therapies/ No feasible amount of funding that could be devoted to the research and development of rejuvenation therapies would be too much. If near all other projects were dropped, and institutions radically retooled on a short term basis...
Source: Fight Aging! - September 26, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs

The Staggering Ongoing Cost of Failing to Aggressively Pursue the Development of Rejuvenation Therapies
No feasible amount of funding that could be devoted to the research and development of rejuvenation therapies would be too much. If near all other projects were dropped, and institutions radically retooled on a short term basis, then the world might be able to devote $300 billion per year into medical research and development aimed at aging. That is an unachievable upper bound, of course. Given a few decades in which to train new researchers while rapidly and radically expanding existing institutions, then humanity might start to approach that scale of expenditure. Realistically it will take 20-30 years following the first...
Source: Fight Aging! - September 24, 2021 Category: Research Authors: Reason Tags: Activism, Advocacy and Education Source Type: blogs