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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, February 13th 2023
This study investigated whether taller Polish adults live longer than their shorter counterparts. Data on declared height were available from 848,860 individuals who died in the years 2004-2008 in Poland. To allow for the cohort effect, the Z-values were generated. Separately for both sexes, Pearson's r coefficients of correlation were calculated. Subsequently, one way ANOVA was performed. The correlation between adult height and longevity was negative and statistically significant in both men and women. After eliminating the effects of secular trends in height, the correlation was very weak (r = -0.0044 in men and ...
Source: Fight Aging! - February 12, 2023 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs

Fight Aging! Newsletter, September 19th 2022
Conclusion Use of the Khavinson peptides and melatonin in combination in this way, at this dose, negatively impacts the thymus, producing a reduction in active tissue and increase in atrophy to fatty tissue. The degree to which this atrophy occurred is greater than one would expect to take place over nine months of aging at this stage of life. Why did this outcome occur, given the animal studies showing thymic regrowth, and the studies showing reduced later life mortality following use of thymogen? We can only speculate. Firstly, the dose makes the poison, and the dosing here may have been too high, too frequ...
Source: Fight Aging! - September 18, 2022 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs

Fight Aging! Newsletter, June 14th 2021
In conclusion, a number of high-income countries, changes in health expectancies over time have not kept pace with the growth in life expectancy. That is, people are living longer but disability and poor health are occupying an increasing proportion of later life. Our findings suggest that countries still need to make significant progress to achieve the WHO's Decade of Healthy Ageing goal of healthier, longer lives for all. Progress on Understanding Why Human Growth Hormone Receptor Variants are Associated with Greater Longevity https://www.fightaging.org/archives/2021/06/progress-on-understanding-why-human-gro...
Source: Fight Aging! - June 13, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs

Fully vaccinated against COVID-19? So, what can you safely do?
Congrats on getting your COVID-19 vaccine! You qualify as fully vaccinated two weeks after your second dose of the Moderna or Pfizer/BioNTech vaccine, or two weeks after your single dose of the Johnson & Johnson vaccine, according to the US Centers for Disease Control and Prevention (CDC). Maybe you’re wondering what you can safely do now that you’re fully vaccinated. As an infectious disease specialist, I’ve provided answers to some common questions. Please keep in mind that information about COVID-19 and vaccines is evolving, and recommendations may change as we learn more. Can I gather with people outside my h...
Source: Harvard Health Blog - March 25, 2021 Category: Consumer Health News Authors: Amy C. Sherman, MD Tags: Coronavirus and COVID-19 Health Parenting Relationships Vaccines 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

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

Common cold, flu, or coronavirus?
  In the early days of the outbreak, the novel coronavirus (COVID-19) was repeatedly compared to the flu (influenza) and even to the common cold (rhinoviruses, et al). This was due to an initial impression of shared symptoms. The differences between these conditions are particularly important as we kick off National Influenza Vaccination Week (NIVW) and the ‘flu season’. So, how can we tell which of these diseases we are dealing with in a given patient?     Common cold Let’s start with the common cold, a condition that can be caused by over 200 different strains of viruses.  On average, an adult wil...
Source: GIDEON blog - December 8, 2020 Category: Databases & Libraries Authors: Kristina Symes Tags: Diagnosis Identify News Source Type: blogs

Fight Aging! Newsletter, December 7th 2020
In this study, except for the reduction in body weight, the aging characteristics related to epidermal and muscle tissue in mice were significantly ameliorated in the CR group compared with the control group. Additional studies have indicated that not stem cells themselves but the stem cell microenvironment is the key factor mediating stem cell activation, proliferation and differentiation. Mitochondrial dysfunction is an important factor leading to age-related muscular atrophy. Considering the dependence of skeletal muscle on ATP, loss of mitochondrial function, which can lead to a decrease in strength and enduranc...
Source: Fight Aging! - December 6, 2020 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs

Discrimination, high blood pressure, and health disparities in African Americans
Over the past few months, we have all seen the results of significant disruption to daily life due to the COVID-19 pandemic, high levels of unemployment, and civil unrest driven by chronic racial injustice. These overlapping waves of societal insult have begun to bring necessary attention to the importance of health care disparities in the United States. Direct links between stress, discrimination, racial injustice, and health outcomes occurring over one’s lifespan have not been well studied. But a recently published article in the journal Hypertension has looked at the connection between discrimination and increased ris...
Source: Harvard Health Blog - September 21, 2020 Category: Consumer Health News Authors: Chester Hedgepeth, III, MD, PhD Tags: Health care disparities Hypertension and Stroke Source Type: blogs

Fight Aging! Newsletter, August 24th 2020
We report that electrical stimulation (ES) stimulation of post-stroke aged rats led to an improved functional recovery of spatial long-term memory (T-maze), but not on the rotating pole or the inclined plane, both tests requiring complex sensorimotor skills. Surprisingly, ES had a detrimental effect on the asymmetric sensorimotor deficit. Histologically, there was a robust increase in the number of doublecortin-positive cells in the dentate gyrus and SVZ of the infarcted hemisphere and the presence of a considerable number of neurons expressing tubulin beta III in the infarcted area. Among the genes that were unique...
Source: Fight Aging! - August 23, 2020 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs

Fight Aging! Newsletter, August 17th 2020
In this study, we sought to elucidate the role of VRK-1 in regulation of adult life span in C. elegans. We found that overexpression of VRK-1::GFP (green fluorescent protein), which was detected in the nuclei of cells in multiple somatic tissues, including the intestine, increased life span. Conversely, genetic inhibition of vrk-1 decreased life span. We further showed that vrk-1 was essential for the increased life span of mitochondrial respiratory mutants. We demonstrated that VRK-1 was responsible for increasing the level of active and phosphorylated form of AMPK, thus promoting longevity. A Fisetin Variant, C...
Source: Fight Aging! - August 16, 2020 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs

Can celiac disease affect life expectancy?
Celiac disease (CD), triggered by the ingestion of gluten, occurs in people genetically predisposed to develop the chronic autoimmune condition. During the past few decades, doctors have learned much about how the disease develops, including genetic and other risk factors. However, results from studies on whether people with CD have an increased risk of premature death linked to the condition have been mixed. A recent study shows a small but statistically significant increased mortality rate. Celiac disease can affect the entire body Until recently, CD was considered a mainly pediatric gastrointestinal disorder, associated...
Source: Harvard Health Blog - May 28, 2020 Category: Consumer Health News Authors: Maureen Leonard, MD, MMSc Tags: Allergies Autoimmune diseases 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 mitochondri...
Source: Fight Aging! - May 24, 2020 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs

Fight Aging! Newsletter, May 18th 2020
This study provides direct evidence for the contribution of gut microbiota to the cognitive decline during normal aging and suggests that restoring microbiota homeostasis in the elderly may improve cognitive function. On Nutraceutical Senolytics https://www.fightaging.org/archives/2020/05/on-nutraceutical-senolytics/ Nutraceuticals are compounds derived from foods, usually plants. In principle one can find useful therapies in the natural world, taking the approach of identifying interesting molecules and refining them to a greater potency than naturally occurs in order to produce a usefully large therape...
Source: Fight Aging! - May 17, 2020 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs

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