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Fight Aging! Newsletter, March 22nd 2021
This article expresses sentiments regarding medical technology and human longevity that we'd all like to see more of in the mainstream media. At some point, it will come to be seen by the average person as basically sensible to work towards minimizing the tide of suffering and death caused aging and age-related disease. It has been, in hindsight, a strange thing to live in a world in which most people were reflexively opposed to that goal.
Death and aging constitute a mystery. Some of us die more quickly. We often ask about it as children, deny it in youth, and reluctantly come to accept it as adults. Aging is uni...
Source: Fight Aging! - March 21, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Prevalence of Cellular Senescence May Explain the Inverse Correlation Between Cancer and Neurodegeneration
One of the more curious aspects of aging is that risk of Alzheimer's disease and risk of cancer is inversely correlated. Why is this the case? Researchers here suggest that cellular senescence may be an important component of this relationship. If cells in a given individual are more than averagely prone to becoming senescent in response to stress and damage, then this may lower the risk of cancer, as precancerous cells will be blocked from replication and removed by the immune system more efficiently. On the other hand, increased cellular senescence in the aging brain will more rapidly drive chronic inflammation and neuro...
Source: Fight Aging! - March 19, 2021 Category: Research Authors: Reason Tags: Medicine, Biotech, Research Source Type: blogs
Targeting of Telomere Lengthening Processes will be the Basis of the Next Generation of Cancer Therapies
Telomeres are repeated DNA sequences that form the end caps of chromosomes. A little of their length is lost with each cell division, and cells self-destruct or become senescent and cease replication when telomeres become too short. This is a part of the Hayflick limit on cell replication: near all cells in the body can only divide a limited number of times. Stem cells are the first exception, using telomerase to extend telomeres. Cancer cells are the second exception, employing either telomerase or the alternative lengthening of telomeres (ALT) mechanisms that do not operate in normal cells. Telomere lengthening is a univ...
Source: Fight Aging! - March 17, 2021 Category: Research Authors: Reason Tags: Medicine, Biotech, Research Source Type: blogs
Fight Aging! Newsletter, March 15th 2021
In conclusion, PLG attenuates high calcium/phosphate-induced vascular calcification by upregulating P53/PTEN signaling in VSMCs.
Tsimane and Moseten Hunter-Gatherers Exhibit Minimal Levels of Atrial Fibrillation
https://www.fightaging.org/archives/2021/03/tsimane-and-moseten-hunter-gatherers-exhibit-minimal-levels-of-atrial-fibrillation/
Epidemiological data for the Tsimane and Moseten populations in Bolivia shows that they suffer very little cardiovascular disease in later life, despite a presumably greater lifetime burden of infectious disease (and consequent inflammation) than is the case for people i...
Source: Fight Aging! - March 14, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Fight Aging! Newsletter, March 8th 2021
Conclusion
Coupled with the animal data, and the existing human trial data for safety, the results here suggests that someone should run a formal, controlled trial of flagellin immunization in older people, 65 and over. The goal would be to see whether (a) this sort of outcome holds up in a larger group of people, and (b) there is a meaningful impact on chronic inflammation and other parameters of health that are known to be affected by the aging of the gut microbiome.
The Role of Reactive Oxygen Species in Aging is Complex
https://www.fightaging.org/archives/2021/03/the-role-of-reactive-oxygen-species-in-ag...
Source: Fight Aging! - March 7, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Lamin B1 in the Age-Related Loss of Neural Stem Cell Activity
Neurogenesis is the creation and integration of new neurons into neural circuits, necessary for learning, and for the maintenance of functional brain tissue. Neural stem cells are responsible for providing a supply of new neurons, but, as is the case for stem cells throughout the body, their activity declines with age. Loss of neurogenesis is one important contributing factor in the aging of the brain. Considered at the high level, a progressive loss of stem cell activity may be an evolved response to rising levels of cell and tissue damage and dysfunction, reducing the risk of death by cancer at the cost of a slow decline...
Source: Fight Aging! - March 2, 2021 Category: Research Authors: Reason Tags: Medicine, Biotech, Research Source Type: blogs
What is Known of the Interaction of Cancer Stem Cells and Tumor Associated Macrophages
Cancers subvert the immune system in order to survive, but also to accelerate their growth. Macrophages are a part of the innate immune system, and have roles in wound healing. They become engaged by a tumor; tumor-associated macrophages assist in the rampant growth of tumor cells by supporting them in an analogous way to the support of regrowth in injured tissues. A cancer is, in many ways, the twisted reflection of regeneration. In place of the intricate dance between macrophages, stem cells, and somatic cells, there is instead an equally complex interaction between tumor-associated macrophages, cancer stem cells, and ca...
Source: Fight Aging! - March 2, 2021 Category: Research Authors: Reason Tags: Daily News Source Type: blogs
Fight Aging! Newsletter, March 1st 2021
This study may have important implications for preventing cell senescence and aging-induced tendinopathy, as well as for the selection of novel therapeutic targets of chronic tendon diseases.
Our results showed that the treatment of bleomycin, a DNA damaging agent, induced rat patellar TSC (PTSC) cellular senescence. The senescence was characterized by an increase in the senescence-associated β-galactosidase activity, as well as senescence-associated changes in cell morphology. On the other hand, rapamycin could extend lifespan in multiple species, including yeast, fruit flies, and mice, by decelerating DNA damage ...
Source: Fight Aging! - February 28, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Upregulation of Autophagy via mTOR Inhibition Reduces Tendon Stem Cell Senescence
This study may have important implications for preventing cell senescence and aging-induced tendinopathy, as well as for the selection of novel therapeutic targets of chronic tendon diseases.
Our results showed that the treatment of bleomycin, a DNA damaging agent, induced rat patellar TSC (PTSC) cellular senescence. The senescence was characterized by an increase in the senescence-associated β-galactosidase activity, as well as senescence-associated changes in cell morphology. On the other hand, rapamycin could extend lifespan in multiple species, including yeast, fruit flies, and mice, by decelerating DNA damage ...
Source: Fight Aging! - February 26, 2021 Category: Research Authors: Reason Tags: Medicine, Biotech, Research Source Type: blogs
Phone Fears And Dolphin Directions: The Week ’s Best Psychology Links
We reported earlier this week on the similarities between dolphin and human personalities — but do dolphins also have “handedness” like humans? Past work had suggested that the aquatic mammals showed behavioural asymmetries in their movements, preferring to spin rightward. But a new study casts doubt on those findings, writes researcher Kelly Jaakkola at Scientific American.
“Mini-brains” — brain organoids grown from stem cells in the lab — are used to study the development of the human brain, though they are far more primitive than real brains. But researchers have reported a surprising finding: after...
Source: BPS RESEARCH DIGEST - February 26, 2021 Category: Psychiatry & Psychology Authors: BPS Research Digest Tags: Weekly links Source Type: blogs
Fight Aging! Newsletter, February 22nd 2021
In conclusion, long term LRIC could decrease blood pressure and ameliorate vascular remodeling via inflammation regulation.
The Damage of a Heart Attack Causes the Immune System to Overreact
https://www.fightaging.org/archives/2021/02/the-damage-of-a-heart-attack-causes-the-immune-system-to-overreact/
Researchers here note a mechanism that causes T cells of the adaptive immune system to spur chronic inflammation and tissue damage following a heart attack. As the researchers note, not all inflammation is the same. Some is maladaptive, and this is particularly the case in older individuals. The aged immune...
Source: Fight Aging! - February 21, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Most Core Longevity Industry Venture Investment Vehicles are Companies, Not Funds
The objective of a venture fund is to exist for a set period of time, invest in startups, and return gains to investors at the end of that time. The objective of a business development company is to go public. This difference in objectives tends to steer groups like Juvenescence and Cambrian towards creating a family of owned companies, via founding startups or purchasing controlling majority stakes in existing ventures, and participating actively in the management of those companies. New Big Pharma entities will likely emerge from this approach, as the industry grows, and the first rejuvenation therapies prove their worth...
Source: Fight Aging! - February 16, 2021 Category: Research Authors: Reason Tags: Daily News Source Type: blogs
Flowers, chocolates, organ donation — are you in?
Chocolates and flowers are great gifts for Valentine’s Day. But what if the gifts we give this year could be truly life-changing? A gift that could save someone’s life, or free them from dialysis?
You can do this. For people in need of organ, tissue, or blood donation, a donor can give them a gift that exceeds the value of anything that you can buy. That’s why February 14th is not only Valentine’s Day — it’s also National Donor Day, a time when health organizations nationwide sponsor blood drives and sign-ups for organ and tissue donation. Read on if you’ve ever wondered what can be donated, had reservations ...
Source: Harvard Health Blog - February 11, 2021 Category: Consumer Health News Authors: Robert H. Shmerling, MD Tags: Health Heart Health Kidney and urinary tract Lung disease Source Type: blogs
Fight Aging! Newsletter, February 8th 2021
This study was divided in two phases: CALERIE-1 and CALERIE-2. CALERIE-1 study was performed to assess the possible effects induced by a reduction of 10-30% of caloric intake on body composition parameters and lipid profile after 6 and 12 months in a population of middle-aged non-obese subjects. CALERIE-1 results showed an improvement in lipid and glycemic profile and a reduction in body weight (BW) and fat mass.
CALERIE-2 was the largest multi-center study on CRD. A total of 220 subjects were enrolled randomly with a 2:1 allocation into two subgroups: 145 in the CRD group and 75 in the ad libitum group. The CRD gro...
Source: Fight Aging! - February 7, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Fight Aging! Newsletter, February 1st 2021
In this study, we characterize age-related phenotypes of human hematopoietic stem cells (HSCs). We report increased frequencies of HSC, hematopoetic progenitor cells (HPC), and lineage negative cells in the elderly but a decreased frequency of multi-lymphoid progenitors. Aged human HSCs further exhibited a delay in initiating division ex vivo though without changes in their division kinetics. The activity of the small RhoGTPase Cdc42 was elevated in aged human hematopoietic cells and we identified a positive correlation between Cdc42 activity and the frequency of HSCs upon aging.
The frequency of human HSCs polar fo...
Source: Fight Aging! - January 31, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
