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Fight Aging! Newsletter, January 31st 2022
In conclusion, the effects of MR on the gut barrier were likely related to alleviation of the oscillations of inflammation-related microbes. MR can enable nutritional intervention against age-related gut barrier dysfunction.
Clearing Senescent Cells from the Neural Stem Cell Niche Rapidly Improves Neurogenesis in Old Mice
https://www.fightaging.org/archives/2022/01/clearing-senescent-cells-from-the-neural-stem-cell-niche-rapidly-improves-neurogenesis-in-old-mice/
Neurogenesis is the generation of new neurons in the brain, and their integration into existing neural circuits. It is essential to learning an...
Source: Fight Aging! - January 30, 2022 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Fight Aging! Newsletter, January 24th 2022
In conclusion, senolytic drugs have shown promising results in the elimination of senescent cells and in alleviating various diseases in animal models. However, in patients, there is a paucity in data on the efficacy and safety of senotherapeutics from clinical trials, including systemic effects and side-effects. In this regard it is important to assess the specificity of senolytics in killing targeted senescent cells and their cytotoxic effects, to identify reliable markers for intervention responses, to elucidate interactions with comorbidities and other drugs, and to standardise administration protocols.
FOXO3...
Source: Fight Aging! - January 23, 2022 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Fight Aging! Newsletter, January 17th 2022
In conclusion, fibroblasts in monolayers cultured with soluble pentosidine and tridimensional in vitro skin constructs exposed to the combination of AGEs and UVA promote an inflammatory state and an alteration of the dermal compartment in relation to an elastosis-like environment.
Source: Fight Aging! - January 16, 2022 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Fight Aging! Newsletter, January 3rd 2022
In this study, we showed that the iPaD (inducing Plagl2 and anti-Dyrk1a) lentivirus substantially rejuvenated the proliferative and neurogenic potential of NSCs in the aged brain. Clonal analysis by a sparse labeling approach as well as transcriptome analysis indicated that iPaD can rejuvenate aged NSCs (19-21 mo of age) to a level comparable with those at 1 or 2 months of age and successfully improved cognition of aged mice.
Once rejuvenated and activated by iPaD, aged dormant NSCs can generate, on average, 4.9 neurons but very few astrocytes in 3-week tracing. Furthermore, these activated NSCs were maintained for ...
Source: Fight Aging! - January 2, 2022 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
A Look Back at 2021: Progress Towards the Treatment of Aging as a Medical Condition
Well, here we are again, at the end of another pandemic year, a year older and - hopefully - a year wiser and more knowledgeable. I said all that really needs to be said on the topic of COVID-19 as an age-related condition at the end of last year. We might hope that, given widespread vaccination, the pandemic will become a topic of diminishing importance as the year ahead progresses, even given the present round of variants, fears, and reintroduction of restrictions.
Advocacy for Aging Research
Have we finally made significant progress in convincing the world that aging is the cause of age-related disease, th...
Source: Fight Aging! - December 31, 2021 Category: Research Authors: Reason Tags: Of Interest Source Type: blogs
Fight Aging! Newsletter, December 27th 2021
We report that whereas microglia are characterized by marked gene-level alterations related to negative regulation of protein phosphorylation and phagocytic vesicles, astrocytes show activation of enzyme- or peptidase-inhibitor signaling after detectable changes in BBB permeability. We also identify several genes enriched in these pathways that are notably altered after BBB breakdown. Our data reveal that microglia and astrocytes play an active role in maintaining BBB stabilization and corralling infiltrating cells, and thus might potentially function in ameliorating the lesions and neurologic disabilities in CNS diseases....
Source: Fight Aging! - December 26, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Fight Aging! Newsletter, December 20th 2021
In conclusion, the low dose, prolonged angiotensin II exposure is associated with the induction of senescence in kidneys and the promotion of an inflammatory microenvironment through both secreted factors and immune cells. Endothelial cells appear to be a major cell type impacted. The elimination of senescent cells in the INK-ATTAC transgenic model prevents these effects of angiotensin II and reveals a novel pathophysiologic mechanism amenable to targeting by senolytic drugs in development.
CYTOR Upregulation as a Path to Improved Muscle Function in Later Life
https://www.fightaging.org/archives/2021/12/cytor-u...
Source: Fight Aging! - December 19, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Fight Aging! Newsletter, December 13th 2021
In conclusion, there is a good amount of pre-clinical and clinical data showing a strong positive correlation between reduction of senescent cells frequencies and functional improvement of skin. Whether senescence of skin cells makes a significant causal contribution to skin ageing can still not be conclusively decided, however. Nonetheless, there is strong evidence existing today to assume that better understanding of cell senescence in skin may lead to a breakthrough in interventions into skin ageing.
Isomerization of Tau May be Involved in Alzheimer's Disease
https://www.fightaging.org/archives/2021/12/isome...
Source: Fight Aging! - December 12, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Fight Aging! Newsletter, December 6th 2021
In this study, they found these drugs can kill senescent cells from cultures of human fat tissue. The tissue was donated by individuals with obesity who were known to have metabolic troubles. Without treatment, the human fat tissues induced metabolic problems in immune-deficient mice. After treatment with dasatinib and quercetin, the harmful effects of the fat tissue were almost eliminated.
Targeting p21Cip1 highly expressing cells in adipose tissue alleviates insulin resistance in obesity
Insulin resistance is a pathological state often associated with obesity, representing a major risk factor for type 2...
Source: Fight Aging! - December 5, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
A Fasting Mimicking Diet Improves Anti-Cancer Immune Function
The fasting mimicking diet is, in essence, a clever strategy to pull in significant funding for the rigorous study of the use of forms of calorie restriction as a therapy. A fasting mimicking diet involves taking in just few enough calories to trigger most of the benefits of fasting. There must exist a dividing line in calorie intake at which nutrient sensor mechanisms determine that the body is in a state of fasting. Early research into fasting mimicking found that dividing line to be somewhere in the vicinity of 500 to 750 calories daily, but later studies use lower calorie levels. Another important point of calibration ...
Source: Fight Aging! - December 3, 2021 Category: Research Authors: Reason Tags: Medicine, Biotech, Research Source Type: blogs
Fight Aging! Newsletter, November 29th 2021
Fight Aging! publishes news and commentary relevant to the goal of ending all age-related disease, to be achieved by bringing the mechanisms of aging under the control of modern medicine. This weekly newsletter is sent to thousands of interested subscribers. To subscribe or unsubscribe from the newsletter,
please visit:
https://www.fightaging.org/newsletter/
Longevity Industry Consulting Services
Reason, the founder of Fight Aging! and Repair Biotechnologies, offers strategic consulting services to investors, entrepreneurs, and others interested in the longevity industry and its complexities. To find out m...
Source: Fight Aging! - November 28, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Fight Aging! Newsletter, November 22nd 2021
This study nicely illustrates the importance of the cellular metabolic state of myeloid cells: it highlights that not only the availability of glucose, but also its channeling into different pathways (glycolysis versus glycogen synthesis) contributes to maintaining proper myeloid function.
On the Ability of Redundant Blood Vessels to Lower Cardiovascular Mortality
https://www.fightaging.org/archives/2021/11/on-the-ability-of-redundant-blood-vessels-to-lower-cardiovascular-mortality/
A few strategies offer the possibility of growing additional redundant blood vessels, though this is far from rigorously pr...
Source: Fight Aging! - November 21, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Evidence for Earlier Life Use of Some Senolytics to be Detrimental in Female Mice
Senescent cell accumulation is an important contributing cause of aging. Senescent cells secrete a mix of signals that provokes growth and inflammation, useful in the short term in circumstances such as wound healing and cancer suppression, but damaging to tissue function and health when sustained over the long term. Senolytic drugs that can selectively destroy senescent cells have produced impressive displays of rejuvenation when used in aged mice. Some are in human trials, while many others are in development.
The most studied of present senolytic treatments are navitoclax, the dasatinib and quercetin combination,...
Source: Fight Aging! - November 16, 2021 Category: Research Authors: Reason Tags: Medicine, Biotech, Research Source Type: blogs
Is Anatomy Finished? | A Review of New Discoveries | TAPP 105
Are there reallyno more discoveries in human anatomy? In this episode, I'll review some recent discoveries: the rise of thefabella, macrophage barriers, the interstitium, button and zipper junctions, lymph node micro-organs, new vessels in bones, andtubarial salivary glands.00:00 | Introduction00:41 | Is Anatomy Finished?03:44 | Sponsored by AAA04:16 | Rise of the Fabella11:52 | Sponsored by HAPI12:38 | Macrophage Barriers23:18 | Sponsored by HAPS23:55 | Interstitium27:48 | Button and Zipper Junctions35:28 | Lymphatic Micro-Organ40:05 | Free Update Newsletter41:05 | New Vessels in Bones44:44 | Tubarial Salivary Glands...
Source: The A and P Professor - November 16, 2021 Category: Physiology Authors: Kevin Patton Source Type: blogs
Fight Aging! Newsletter, November 15th 2021
This article will review the relationship between diabetes mellitus and AD as it relates to tau pathology. More understanding of the link between diabetes mellitus and AD could change the approach researchers and clinicians take toward both diseases, potentially leading to new treatments and preventative strategies in the future.
Signaling from White Fat Tissue Contributes to Age-Related Hair Follicle Dysfunction
https://www.fightaging.org/archives/2021/11/signaling-from-white-fat-tissue-contributes-to-age-related-hair-follicle-dysfunction/
Changes in fat tissue behavior in the skin take place with age, ...
Source: Fight Aging! - November 14, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
