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Archive for the ‘life extension’ category: Page 40

Sep 14, 2023

Transferring Longevity Adaptations Across Species: Gene from Naked Mole Rat Extends Mouse Lifespan

Posted by in categories: biotech/medical, genetics, life extension

Naked mole rats are rodents that are about the size of a mouse with a key difference, aside from having no fur — they’re extremely long-lived — reaching ages of around 40 years old. For comparison, lab mice live an average of about three and a half years. To explain their extensive lifespans, researchers have sought to pinpoint how naked mole rats evade the onset of age-related diseases like cancer. In doing so, they’ve identified a form of gelatinous substance called hyaluronan, which has anti-inflammatory and anticancer properties. Now, the question of whether the benefits of the naked mole rat’s abundant levels of this form of hyaluronan — called high molecular mass hyaluronic acid (HMM-HA) — can be exported to other species has recently drawn attention.

Published in Nature, Gorbunova and colleagues from the University of Rochester show that genetically modifying mice to harbor an enzyme that produces HMM-HA extends their lifespan. The researchers go on to show that increasing HMM-HA reduces the prevalence of cancer. Additionally, the nmrHAS2 gene improves the healthspan of mice by countering physiological dysfunction, as measured with a frailty score. These findings provide the first evidence that genes from long-lived species can be exported to other species, perhaps conferring benefits to humans one day.

Sep 13, 2023

Longer Telomere Length In 2023 vs 2022 (Also, Correlations With Diet)

Posted by in categories: biotech/medical, genetics, life extension

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Enter Code: ConquerAging.

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Sep 13, 2023

Y chromosome fully sequenced for the first time, revealing its secrets from ‘telomere-to-telomere’

Posted by in categories: biotech/medical, information science, life extension

Scientists have decoded the Y chromosome in full for the first time. | With the help of advanced algorithms and DNA sequencing techniques, scientists have decoded the Y chromosome in full for the first time.

Sep 12, 2023

Lifting Weights Might Be the Newest Anti-Aging Skincare Hack, New Research Shows

Posted by in category: life extension

New research shows resistance training may help counteract skin aging even better that aerobic exercise. Here’s what to know, and how to add resistance training or weight lifting into your exercise routine to reap skin benefits.

Sep 10, 2023

Why researchers say they’re a step closer to extending lifespan

Posted by in categories: biotech/medical, life extension

(NewsNation) — Researchers at the University of Rochester transferred a longevity gene from naked mole rats to mice, calling it a “groundbreaking endeavor.”

According to the University of Rochester, naked mole rats have long captured the attention of scientists for their lengthy lifespans and resistance to age-related diseases.

Sep 10, 2023

Calorie Restriction, Exercise, And Longevity: Luigi Fontana, MD PhD

Posted by in categories: biotech/medical, genetics, life extension

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Sep 10, 2023

The Immortals: meet the billionaires forking out for eternal life

Posted by in categories: biotech/medical, life extension

The Conboys’ statement on plasma dilution is important:

The pair are quick to add that this isn’t going to have a Benjamin Button effect, and the research “wasn’t geared to make old people young” – even if this idea is being bio-hacked around the world. “It was clear that there were improvements after a couple of procedures,” says Irina. “[But] it’s not really healthy or rejuvenating to drain somebody of 70% of their blood and replace it with something.” She warns people to wait until more research is done.

Still, they believe that in the next five years we will see huge advancements in prolonging life treatments – including taking a pill instead of getting blood, and a “fountain of middle age”. “People will be able to have this high quality, productive life where they are healthy for many more decades,”

Continue reading “The Immortals: meet the billionaires forking out for eternal life” »

Sep 10, 2023

A Cure for Glaucoma? 👁️

Posted by in categories: biotech/medical, genetics, life extension

Gene therapy for longevity and targeted disease treatment.

Gene therapy has the power to extend healthy longevity and treat a litany of organ-specific conditions.

The eye is one outstanding candidate.

Continue reading “A Cure for Glaucoma? 👁️” »

Sep 9, 2023

Inflammation, Immune Senescence, and Dysregulated Immune Regulation in the Elderly

Posted by in categories: biotech/medical, life extension

Although the German scientist Hanns Kaiser published a number of articles in the 1970s relating inflammation to diseases in the elderly (Kaiser, 1971), the last 20 years have seen a burst in the study of the aging immune system, inflammation and the associated diseases. One of the most iconic studies in aging and immunity was the OCTO and NONA longitudinal study of healthy 80–90 year old people that took place in Jonkoping Sweden in the 1990s (Wikby AJ and Ferguson, 2003). These studies were unique for several reasons. First, they were longitudinal studies of elderly individuals. Second, the 80-and 90-year-olds were very healthy. As people age, they naturally acquire more disease and it becomes increasingly difficult to distinguish the effects of disease vs. aging on the immune parameters being measured. To overcome these confounders, the OCTO and NONA immune longitudinal study was a community population-based study that continually and carefully evaluated individual health parameters. Study participants had normal cognition, were not on drugs that would influence their immune responses, and were non-institutionalized (Wikby AJ and Ferguson, 2003). Several important findings resulted from these studies; 1) the establishment of an Immune Risk Profile (IRP) based on altered CD4/CD8 T cell ratios (decreasing CD4+ T cell numbers and often increasing CD8+ T cell numbers) (Wikby et al., 1998) and 2) germane to this review, the discovery of a link between elevated plasma IL-6 levels, mortality and IRP in the very old (Wikby et al., 2006).

An optimal immune response requires the appropriate interaction between the innate and the adaptive arms of the immune system as well as a proper balance of activation and regulation. After decades of life, the aging immune system is continuously exposed to immune stressors and inflammatory assaults that lead to immune senescence (Salama et al., 2014; Aiello et al., 2019; Di Micco et al., 2021). In this review, we will discuss inflammaging in the elderly, specifically concentrating on IL-6 and IL-1β in the context of T lymphocytes, and how inflammation is related to mortality and morbidities, specifically cardiovascular disease and cancer. Although a number of studies suggests that the anti-inflammatory cytokine TGF-β is elevated in the elderly, heightened inflammation persists. Thus, the regulation of the immune response and the ability to return the immune system to homeostasis is also important. Therefore, we will discuss cellular alterations in aging, concentrating on senescent T cells and CD4+ CD25 + FOXP3+ regulatory T cells (Tregs) in aging.

Inflammaging is a phenomenon of inflammatory pathogenesis characterized by chronic low-grade inflammation, and is a significant risk factor for morbidity and mortality in elderly people. Claudio Franceschi first coined the term “inflammaging” in the manuscript “Inflamm-aging.

Sep 7, 2023

Young.ai — artificial intelligence for tracking aging in humans | Lifespan News

Posted by in categories: biotech/medical, life extension, robotics/AI

Would you like to hear more news stories like this one? If so, head over to LifespanNews for more longevity news, science, and advocacy episodes! Visit https://www.youtube.com/lifespannews.

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