Fight Aging! Newsletter, September 6th 2021
In conclusion, patients over 90 years of age had an overall low prevalence of fractures and relative preservation of bone health, suggesting a preserved bone molecular profile in these individuals. Epigenetic factors and activity levels might also have favorably affected bone health. The low percentage of osteoporosis and fractures likely reduced the morbidity and mortality in this population, potentially contributing to their overall longevity.
Building a Therapy for Aging Based on SIRT6 Upregulation
https://www.fightaging.org/archives/2021/08/building-a-therapy-for-aging-based-on-sirt6-upregulation/
G...
Source: Fight Aging! - September 5, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Fight Aging! Newsletter, August 23rd 2021
In this study, we used the UK Biobank (n = 440,185) to resolve previous ambiguities in the relationship between serum IGF-1 levels and clinical disease. We examined prospective associations of serum IGF-1 with mortality, dementia, vascular disease, diabetes, osteoporosis, and cancer, finding two generalized patterns.
First, IGF-1 interacts with age to modify risk in a manner consistent with antagonistic pleiotropy; younger individuals with high IGF-1 are protected from disease, while older individuals with high IGF-1 are at increased risk for incident disease or death. Second, the association between IGF-1 and risk ...
Source: Fight Aging! - August 22, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Fight Aging! Newsletter, March 9th 2020
In this study, we intravenously administrated the young mitochondria into aged mice to evaluate whether energy production increase in aged tissues or age-related behaviors improved after the mitochondrial transplantation. The results showed that heterozygous mitochondrial DNA of both aged and young mouse coexisted in tissues of aged mice after mitochondrial administration, and meanwhile, ATP content in tissues increased while reactive oxygen species (ROS) level reduced. Besides, the mitotherapy significantly improved cognitive and motor performance of aged mice. Our study, at the first report in aged animals, not only prov...
Source: Fight Aging! - March 8, 2020 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Fight Aging! Newsletter, December 16th 2019
This study shows that CA are released from periventricular and subpial regions to the cerebrospinal fluid and are present in the cervical lymph nodes, into which cerebrospinal fluid drains through the meningeal lymphatic system. We also show that CA can be phagocytosed by macrophages. We conclude that CA can act as containers that remove waste products from the brain and may be involved in a mechanism that cleans the brain. Moreover, we postulate that CA may contribute in some autoimmune brain diseases, exporting brain substances that interact with the immune system, and hypothesize that CA may contain brain markers that m...
Source: Fight Aging! - December 15, 2019 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Fight Aging! Newsletter, January 28th 2019
In this study, we show that calorie restriction is protective against age-related increases in senescence and microglia activation and pro-inflammatory cytokine expression in an animal model of aging. Further, these protective effects mitigated age-related decline in neuroblast and neuronal production, and enhanced olfactory memory performance, a behavioral index of neurogenesis in the SVZ. Our results support the concept that calorie restriction might be an effective anti-aging intervention in the context of healthy brain aging.
Greater Modest Activity in Late Life Correlates with Lower Incidence of Dementia
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Source: Fight Aging! - January 27, 2019 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Fight Aging! Newsletter, October 15th 2018
This study suggests that exocrine glands can be induced from pluripotent stem cells for organ replacement regenerative therapy.
Replacement of Aged Microglia Partially Reverses Cognitive Decline in Mice
https://www.fightaging.org/archives/2018/10/replacement-of-aged-microglia-partially-reverses-cognitive-decline-in-mice/
Researchers here report on a compelling demonstration that shows the degree to which dysfunctional microglia contribute to age-related neurodegeneration. The scientists use a pharmacological approach to greatly deplete the microglial population and then allow it to recover naturally. Th...
Source: Fight Aging! - October 14, 2018 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
A primary central nervous system lymphoma overwhelmed by necrosis and neutrophil infiltration
This PCNSL (later proved to be EBV-driven)biopsied from the right parietal lobe is hardly discernible among the necrotic debris and neutrophilic infiltrationTumor cells (outlined) with and surrounding a vessel wall (Source: neuropathology blog)
Source: neuropathology blog - June 12, 2018 Category: Radiology Tags: lymphoma Source Type: blogs
