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Technological Progress Is Really Off And Rolling At An Amazing Pace!
Last week I had the misfortune to have what I have been led
to believe was a small myocardial infarction, which I am happy to report I have
apparently survived.
In true doctor fashion I had been ignoring some minor chest
discomfort until last Sunday week when a doctor friend insisted I go an be
a ssessed at the local teaching hospital (RNSH) at which I had worked decades
ago. My, have things
Source: Australian Health Information Technology - September 6, 2023 Category: Information Technology Authors: Dr David G More MB PhD Source Type: blogs
Fight Aging! Newsletter, September 4th 2023
In conclusion, although the contribution of CRF to GrimAgeAccel and FitAgeAccel is relatively low compared to lifestyle-related factors such as smoking, the results suggest that the maintenance of CRF is associated with delayed biological ageing in older men.
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Release of Acetylcholine is Necessary for the Aging Brain to Compensate for a Lack of Neurogenesis
https://www.fightaging.org/archives/2023/09/release-of-acetylcholine-is-necessary-for-the-aging-brain-to-compensate-for-a-lack-of-neurogenesis/
Neurogenesis is the process by which new neurons are created by neural stem ce...
Source: Fight Aging! - September 3, 2023 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
A Perspective on the Coming Regulatory Shift to Approval of Drugs to Treat Aging
At some point, regulatory bodies that oversee the development of new medicine will accept that therapies can target causative mechanisms of aging in order to slow or reverse the progression of aging, and that there are viable ways to assess new treatments that treat aging. There is growing pressure from the academic community and longevity-focused biotech industry for the ability to run clinical trials to treat aging, rather than to treat one specific age-related disease.
While inevitable, this change will take some years to come to pass, and likely require greater consensus in the research community on reasonable a...
Source: Fight Aging! - August 29, 2023 Category: Research Authors: Reason Tags: Healthy Life Extension Community Source Type: blogs
Fight Aging! Newsletter, August 28th 2023
In conclusion, we identified 20 genes with significant evolutionary signals unique to long-lived species, which provided new insight into the lifespan extension of mammals and might bring new strategies to extend human lifespan.
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Trials of Xenotransplantation of Pig Organs into Humans Continue
https://www.fightaging.org/archives/2023/08/trials-of-xenotransplantation-of-pig-organs-into-humans-continue/
Researchers have genetically engineered pigs to overcome the known barriers to transplantation of pig organs into humans, and have reached the stage of conducting transplants in...
Source: Fight Aging! - August 27, 2023 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Fight Aging! Newsletter, August 21st 2023
This study aimed to investigate the association between frailty index and circulating CAP2 concentration in 467 community-dwelling older adults (median age: 79; range: 65-92 years). The selected robust regression model showed that circulating CAP2 concentration was not associated with chronological age, as well as sex and education. However, circulating CAP2 concentration was significantly and inversely associated with the frailty index: a 0.1-unit increase in frailty index leads to ~0.5-point mean decrease in CAP2 concentration. Furthermore, mean CAP2 concentration was significantly lower in frail participants (i.e., fr...
Source: Fight Aging! - August 21, 2023 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Fight Aging! Newsletter, July 24th 2023
In this study, we tested the hypothesis that periodontal disease (PD) as a source of infection alters inflammatory activation and Aβ phagocytosis by the microglial cells.
Experimental PD was induced using ligatures in C57BL/6 mice for 1, 10, 20, and 30 days to assess the progression of PD. Animals without ligatures were used as controls. Ligature placement caused progressive periodontal disease and bone resorption that was already significant on day 1 post-ligation and continued to increase until day 30. The severity of periodontal disease increased the frequency of activated microglia in the brains on day 30 by 36...
Source: Fight Aging! - July 23, 2023 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Fight Aging! Newsletter, July 17th 2023
In conclusion, the longevity-associated genotype of FLT1 may confer increased lifespan by protecting against mortality risk posed by hypertension. We suggest that FLT1 expression in individuals with longevity genotype boosts vascular endothelial resilience mechanisms to counteract hypertension-related stress in vital organs and tissues.
Resistance Exercise Slows the Onset of Pathology in a Mouse Model of Alzheimer's Disease
https://www.fightaging.org/archives/2023/07/resistance-exercise-slows-the-onset-of-pathology-in-a-mouse-model-of-alzheimers-disease/
With the caveat that mouse models of Alzheimer's...
Source: Fight Aging! - July 16, 2023 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
A 40-something presented after attempted prehospital resuscitation with persistent Ventricular Fibrillation
A 40-something with persistent Ventricular Fibrillation presented after attempted prehospital resuscitationA 40-something with no previous cardiac history presented to the ED in persistent Ventricular Fibrillation after attempted prehospital resuscitation. He underwent further standard resuscitation EXCEPT that we applied the Inspiratory Threshold Device (ResQPod) AND applied Dual Sequential Defibrillation (this simply means we applied 2 sets of pads, had 2 defib machines, and defibrillated with both with only a fraction of one second separating each defibrillation.Two recent interventions have proven in randomized t...
Source: Dr. Smith's ECG Blog - July 14, 2023 Category: Cardiology Authors: Steve Smith Source Type: blogs
Fight Aging! Newsletter, July 3rd 2023
In this study, cultured adipose-derived stem cells (ASCs) were derived from subcutaneous white adipose tissue isolated from mice fed a normal diet. We performed senescence-associated-β-galactosidase (SA-β-gal) staining, real-time PCR, and Western blot to evaluate the levels related to cellular senescence markers.
The mRNA expression levels of senescence markers were significantly increased in the later passages of ASCs. We show that light activation reduced the expression of senescent genes, and SA-β-Gal in all cells at passages. Moreover, the light-activated ASCs-derived exosomes decrease the expression of senes...
Source: Fight Aging! - July 2, 2023 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Senescent Cardiomyocytes Increase the Damage Following a Heart Attack
If a heart attack is survived, it leads to long-term damage to heart tissue. Scarring, detrimental remodeling of heart muscle, and other dysfunctions result. Researchers here show that a raised burden of cellular senescence in cardiomyocytes specifically predisposes the aged heart to greater harm following a heart attack. This well illustrates that periodic senolytic treatments or related strategies that can minimize the presence of senescent cells in aged tissues are highly desirable. The presence of lingering senescent cells is harmful in many ways, directly causing organs to become less functional and more vulnerable.
...
Source: Fight Aging! - June 26, 2023 Category: Research Authors: Reason Tags: Daily News Source Type: blogs
Fight Aging! Newsletter, June 12th 2023
In this study, we investigated the effect of NXP032 on neurovascular stabilization through the changes of PECAM-1, PDGFR-β, ZO-1, laminin, and glial cells involved in maintaining the integrity of the blood-brain barrier (BBB) in aged mice. NXP032 was orally administered daily for 8 weeks. Compared to young mice and NXP032-treated mice, 20-month-old mice displayed cognitive impairments in Y-maze and passive avoidance tests. NXP032 treatment contributed to reducing the BBB damage by attenuating the fragmentation of microvessels and reducing PDGFR-β, ZO-1, and laminin expression, thereby mitigating astrocytes and microglia ...
Source: Fight Aging! - June 11, 2023 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Evidence-based hope in diabetes
In this study, the people with type 2 diabetes who didn’t have any of those extra risk factors, they’re likely to have had their first heart attack was less than people who didn’t have diabetes.So again, it’s only one study. I don’t want to overstate it, but the purpose of this is to say this is what’s possible. With good care, decent care, odds are pretty good, you can do well. And again, live a long and healthy life. So, evidence-based hope. Guys, what do you think?
Scott K. Johnson: I mean, that looks wonderfu...
Source: Scott's Diabetes Blog - June 1, 2023 Category: Endocrinology Authors: Scott K. Johnson Tags: Blog Posts Source Type: blogs
Fight Aging! Newsletter, May 29th 2023
In this study, we used a Drosophila model to understand the role of the dec2P384R mutation on animal health and elucidate the mechanisms driving these physiological changes. We found that the expression of the mammalian dec2P384R transgene in fly sleep neurons was sufficient to mimic the short sleep phenotype observed in mammals. Remarkably, dec2P384Rmutants lived significantly longer with improved health despite sleeping less. In particular, dec2P384R mutants were more stress resistant and displayed improved mitochondrial fitness in flight muscles. Differential gene expression analyses went on to reveal several altered tr...
Source: Fight Aging! - May 28, 2023 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Fight Aging! Newsletter, April 17th 2023
In conclusion, oral NR altered the gut microbiota in rats and mice, but not in humans. In addition, NR attenuated body fat mass gain in rats, and increased fat and energy absorption in the HFD context.
Glycine Supplementation as a Methionine Restriction Mimetic
https://www.fightaging.org/archives/2023/04/glycine-supplementation-as-a-methionine-restriction-mimetic/
Supplementation with the non-essential amino acid glycine has been shown to modestly slow aging in short-lived laboratory species. In today's open access review paper, researchers note glycine supplementation as essentially a calorie restrictio...
Source: Fight Aging! - April 16, 2023 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
