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
Reduced APRT Expression Extends Life in Killifish
Researchers here note that reducing APRT expression affects extends life in short-lived killifish via mechanisms likely related to the calorie restriction response. This regulation of the pace of aging in response to nutrient availability is arguably the most well studied aspect of the biology of aging, but the production of calorie restriction mimetic strategies (such as this one) seems unlikely to result in meaningful therapies for humans. Short-lived species exhibit a much greater extension of life span in response to a low calorie diet than occurs in long-lived species like our own. Mice can live as much as 40% longer ...
Source: Fight Aging! - July 20, 2023 Category: Research Authors: Reason Tags: Daily News Source Type: blogs
A Small Molecule to Reduce Mitochondrial Generation of Oxidative Stress
Researchers here report on an improved version of compounds known to reduce the generation of oxidizing molecules by mitochondria. Mitochondrial dysfunction can produce sustained oxidative stress that changes cell behavior for the worse, contributing to aspects of aging. That targeting antioxidants to the mitochondria or upregulating natural antioxidant molecules can produce some benefit to health suggests that the size of the contribution is meaningful. The details matter, however, and as cells use mild mitochondrial oxidative stress to trigger beneficial maintenance activities, with the metabolic response to exercise bei...
Source: Fight Aging! - July 18, 2023 Category: Research Authors: Reason Tags: Daily News Source Type: blogs
Can You Follow A Keto Diet With Hypertension?
Conclusion
Navigating the maze of diet and health can indeed be a challenge. Especially when it comes to the trendy keto diet and its potential effects on hypertension. So, where do we land on the question, “Can you follow a keto diet with hypertension?”
From the studies we’ve reviewed and the real-life experiences we’ve heard, the answer is a cautious yes. It seems a well-managed keto diet could potentially benefit individuals with hypertension, mainly through weight loss, improved metabolic health, and lower blood sugar levels.
However, it’s not a one-size-fits-all approach. The key...
Source: The EMT Spot - June 21, 2023 Category: Emergency Medicine Authors: Michael Rotman, MD, FRCPC, PhD Tags: Blood Pressure Source Type: blogs
Fight Aging! Newsletter, June 19th 2023
In conclusion, among Swedish middle-aged subjects, nearly two-thirds showed complete fatty degeneration of thymus on CT.
Age-Related Dysfunction of Water Homeostasis
https://www.fightaging.org/archives/2023/06/age-related-dysfunction-of-water-homeostasis/
Dehydration can be an issue in older people. As in every complex system in the body, the mechanisms by which hydration is regulated become dysfunctional with advancing age. Researchers here look at the brain region responsible for regulating some of the response to dehydration, cataloging altered gene expression in search of the more important mechan...
Source: Fight Aging! - June 18, 2023 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Notes from the 2023 Age-Related Disease Therapeutics Summit
The former Longevity Therapeutics conference series was renamed to the Age-Related Disease Therapeutics Summit and held its fifth event recently in San Francisco. It was a smaller meeting than in past years, perhaps a result of the recent downturn in the global financial and investment environment. Few investors were present. Nonetheless, one can usually learn something interesting from the presenting biotech founders and executives. I took a few notes while I was there to present on progress at Repair Biotechnologies, and they follow in the order of the conference program.
Birget Schilling from the Buck Institute f...
Source: Fight Aging! - June 16, 2023 Category: Research Authors: Reason Tags: Longevity Industry Source Type: blogs
Fight Aging! Newsletter, May 22nd 2023
Conclusions to be Drawn
A High Fat Diet Accelerates Atherosclerosis Less Directly than One Might Suspect
How to Construct Measures of Biological Age
A Long-Term Comparison of Metformin in Diabetics with Non-Diabetic Controls
In Search of Distinctive Features of the Gut Microbiome in Long-Lived Individuals
Greater Fitness in Humans Implies a Younger Epigenome and Transcriptome
Intestinal Barrier Dysfunction as a Feature of Aging in Many Species
NAFLD as an Age-Related Condition
Towards Sensory Hair Cell Regeneration in the Inner Ear
Raised Leve...
Source: Fight Aging! - May 21, 2023 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
A High Fat Diet Accelerates Atherosclerosis Less Directly than One Might Suspect
High blood cholesterol accelerates the onset of atherosclerosis, making it easier to reach the tipping point at which localized excesses of cholesterol form in blood vessel walls. The majority of cholesterol is generated in the liver, not obtained from the diet - and yet high fat diets are well proven to accelerate atherosclerosis. Researchers here provide evidence for the mechanism to be less direct than might be expected, involving the gut microbiome and its relationship with tissues and the immune system. Certain components of dietary fat lead to a cascade of events that provoke an inflammatory response, and the more fa...
Source: Fight Aging! - May 19, 2023 Category: Research Authors: Reason Tags: Medicine, Biotech, Research Source Type: blogs
Do Blood Pressure Supplements Interact With Any Foods Or Drinks?
Conclusion
To sum things up, blood pressure supplements are a safe and effective option for managing hypertension, and they typically do not interact with most foods and drinks.
However, some fruits and beverages may reduce the effectiveness of natural supplements. To ensure that you receive the maximum benefit from your blood pressure supplements, avoiding certain foods and drinks is essential.
Licorice, grapefruit, and alcohol are among the top culprits that can interfere with the efficacy of supplements and cause negative side effects.
High-fat meals and salt substitutes containing potassium can also hinder ...
Source: The EMT Spot - May 3, 2023 Category: Emergency Medicine Authors: Michael Rotman, MD, FRCPC, PhD Tags: Supplements 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 restricti...
Source: Fight Aging! - April 16, 2023 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Nicotinamide Riboside Affects the Gut Microbiome Differently in Mice and Humans
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. (Source: Fight Aging!)
Source: Fight Aging! - April 13, 2023 Category: Research Authors: Reason Tags: Medicine, Biotech, Research Source Type: blogs
Fight Aging! Newsletter, January 30th 2023
In conclusion, deletion of p16Ink4a cells did not negatively impact beta-cell mass and blood glucose under basal and HFD conditions and proliferation was restored in a subset of HFD mice opening further therapeutic targets in the treatment of diabetes.
Communication Between Blood and Brain in Aging and Rejuvenation
https://www.fightaging.org/archives/2023/01/communication-between-blood-and-brain-in-aging-and-rejuvenation/
As noted here, joining the circulatory systems of an old and young mouse results in some degree of rejuvenation in the old mouse. Where brain function is improved, researchers are inte...
Source: Fight Aging! - January 29, 2023 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Clearing Senescent Cells as a Treatment for Type 2 Diabetes
In conclusion, deletion of p16Ink4a cells did not negatively impact beta-cell mass and blood glucose under basal and HFD conditions and proliferation was restored in a subset of HFD mice opening further therapeutic targets in the treatment of diabetes.
Link: https://doi.org/10.18632/aging.204483 (Source: Fight Aging!)
Source: Fight Aging! - January 26, 2023 Category: Research Authors: Reason Tags: Daily News Source Type: blogs
Fight Aging! Newsletter, January 16th 2023
Conclusions
Implanted Hair Follicle Cells Produce Remodeling of Scar Tissue
Assessment of Somatic Mosaicism as a Biomarker of Aging
The Gut Microbiome of Centenarians
https://www.fightaging.org/archives/2023/01/the-gut-microbiome-of-centenarians/
The state of the gut microbiome is arguably as influential on health as exercise. Various microbial species present in the gut produce beneficial metabolites, such as butyrate, or harmful metabolites, such as isoamylamine, or can provoke chronic inflammation in a variety of ways. An individual can have a better or worse microbiome, assessing these and other...
Source: Fight Aging! - January 15, 2023 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
A High Level View of Efforts to Modulate Inflammaging and Immunosenescence of the Aged Immune System
Change and disruption in the immune system is an important component of degenerative aging. Broadly, the immune system becomes ever more inflammatory (inflammaging) while also becoming ever less effective (immunosenescence). The immune system is not only responsible for defending against invasive pathogens and destroying errant cells, but it is also tightly integrated into the normal processes of tissue maintenance and operation. When immune cells become inflammatory, they abandon the range of tasks needed to keep tissues functional. Short-term inflammation is necessary in response to injury and infection, but unresolved, ...
Source: Fight Aging! - January 11, 2023 Category: Research Authors: Reason Tags: Medicine, Biotech, Research Source Type: blogs
