Archive for the ‘life extension’ category: Page 2

Oct 25, 2022

Regular fecal microbiota transplantation to Senescence Accelerated Mouse-Prone 8 (SAMP8) mice delayed the aging of locomotor and exploration ability

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

Recent evidence points out the role of the gut microbiota in the aging process. However, the specific changes and relevant interventions remain unclear. In this study, Senescence Accelerated Mouse-Prone 8 (SAMP8) mice were divided into four groups; young-FMT-group transplanted fecal microbiota from young donors (2–3°months old) and old-FMT-group transplanted from old donors (10–11°months old); additionally, other two groups either adult mice injected with saline solution or untreated mice served as the saline and blank control groups, respectively. All mice were intervened from their 7-months-old until 13-months-old. The open field test at 9 and 11°months of age showed that the mice transplanted with gut microbiota from young donors had significantly better locomotor and exploration ability than those of transplanted with old-donors gut microbiota and those of saline control while was comparable with the blank control. 16S rRNA gene sequencing showed that the gut microbiome of recipient mice of young donors was altered at 11°months of age, whereas the alternation of the gut microbiome of old-donor recipient mice was at 9°months. For comparison, the recipient mice in the blank and saline control groups exhibited changes in the gut microbiome at 10°months of age. The hallmark of aging-related gut microbiome change was an increase in the relative abundance of Akkermansia, which was significantly higher in the recipients transplanted with feces from older donors than younger donors at 9°months of age. This study shows that fecal microbiota transplantation from younger donors can delay aging-related declines in locomotor and exploration ability in mice by changing the gut microbiome.

Aging is inherently accompanied by the decline of physical and mental abilities, including locomotor, cognition, and bodily functions, to subsequently cause frailty syndrome, neurodegenerative diseases, and other age-related diseases, which reduce the quality of life of the aging population (Hou et al., 2019). Aging mechanisms and anti-aging interventions have long been a major focus of biomedical research, which is particularly relevant given the rapidly aging society.

The gut is a major organ for nutrients absorption, metabolism, and immunity, and contains hundreds of millions of microorganisms and their metabolites, which comprise the gut microbiota (Heintz and Mair, 2014) that interacts with host cells and tissues (Huang et al., 2021). Our previous study reported continuous changes in the gut microbiome of centenarians during their transition from a healthy status to death. The most significant changes of gut microbial communities in the period were found to occur at 7°months prior to death, suggesting that this may be a turning point of significant changes in the gut microbiome of centenarians (Luan et al., 2020). Recent studies have revealed an important relationship between the gut microbiome and aging-related diseases such as Alzheimer disease (Ticinesi et al., 2018; Haran and McCormick, 2021), suggesting that the gut microbiome plays an essential role in the aging process.

Oct 24, 2022

Perpetual Life

Posted by in category: life extension


We teach the scientific rationality of age reversal, radical life-extension, & we provide fellowship for longevity enthusiasts. Longevity lives here!

Oct 24, 2022

Alex Blyth at Rejuvenation Startup Summit 2022

Posted by in categories: law, life extension, policy

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Oct 24, 2022

Hevolution Foundation Launches Grants Program to Encourage Research into the Science of Aging in Saudi Arabia

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

RIYADH, Saudi Arabia—()— Hevolution Foundation, a non-profit organization that provides grants and early-stage investments to incentivize research and entrepreneurship in healthspan science, announces a new grants program to encourage research into the aging process in Saudi Arabia, as part of the growing Saudi scientific ecosystem. The program, Hevolution’s Open Call for Grant Applications in Saudi Arabia, will provide funding of up to 500,000 Saudi Riyals for local researchers with an interest in the mechanisms of aging.

“This grants program is the first of many through which we aim to encourage the development of the field of aging research in Saudi Arabia” Tweet this

“Saudi Arabia’s population is relatively young but has high rates of age-related conditions such as heart disease and diabetes,” commented Mehmood Khan, MD, Hevolution Foundation’s Chief Executive Officer. “Our hope is that by tackling the aging process itself, we can alleviate the burden of diseases and conditions of aging for the people of Saudi Arabia and worldwide. With this pilot program and others that we have in the works, we hope to enable Saudi Arabia’s scientific community to be a key player in the global charge to reduce the burden of age-related diseases and conditions that affect most of humanity.”

Oct 24, 2022

David Sinclair at ARDD2022: Great release of unpublished data from David Sinclair’s Lab

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

The Aging and Drug Discovery Conference (ARDD) 2022 is pleased to present David Sinclair from Harvard Medical School, who shares new unpublished results from his lab at Harvard Medical School.

Held in Copenhagen at the glorious Ceremonial Hall, this meeting gathers the most prominent figures of the aging and longevity research field, from scientists to clinicians, investors, developers, and everything in between. The fast growth of the conference is evidence of its great quality. In 2022 we had around 400 people on-site, and many others joined through the web.

Continue reading “David Sinclair at ARDD2022: Great release of unpublished data from David Sinclair’s Lab” »

Oct 24, 2022

Rejuvenation Startup Summit 2022 started to publish videos of selected talks

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

The Inaugural Rejuvenation Startup Summit 2022, brought to you by the Forever Healthy Foundation, took place with over 400 participants from over 30 countries in October. It is a vibrant networking event that aims to accelerate the development of the rejuvenation biotech industry. The Summit brings together startups, members of the longevity venture capital / investor ecosystem, and researchers interested in founding or joining a startup – all aiming to create therapies to vastly extend the healthy human lifespan. We started to publish videos with a first set of selected speakers on the 2022 summit:

Oct 24, 2022

Reason | An 80/20 Gene Therapy that Just Works — Challenge

Posted by in categories: biotech/medical, computing, life extension, nanotechnology

Foresight Biotech & Health Extension Meeting sponsored by 100 Plus Capital.
Program & apply to join: https://foresight.org/biotech-health-extension-program/

This video was recorded at the Foresight Longevity Workshop.

Continue reading “Reason | An 80/20 Gene Therapy that Just Works — Challenge” »

Oct 24, 2022

A pro-oxidant combination of resveratrol and copper down-regulates multiple biological hallmarks of ageing and neurodegeneration in mice

Posted by in categories: biotech/medical, life extension

ROS are short lived molecular species containing an unpaired electron which makes them highly reactive as they search for another electron to pair with, and in the process can damage biomolecules such as DNA, proteins and lipids54. ROS induced oxidative stress is known to have multiple deleterious effects on host cells55. However, we have reported that, paradoxically, when ROS is artificially generated outside the cell in the extracellular spaces of the body, they can have wide ranging therapeutic effects18,19,20,26,27. Admixing R with Cu leads to generation of oxygen radicals by virtue of the ability of R to reduce Cu (II) to Cu (I)23,25. Oxygen radicals that are generated in the stomach upon oral administration of R–Cu are apparently absorbed to have systemic effects in the form of deactivation/eradication of extracellular cfChPs. We have shown that cfChPs have wide-ranging damaging effects on host cells. For example, cfChPs can readily enter into the healthy cells to damage their DNA, activate inflammatory cytokines and promote apoptosis via the mitochondrial pathway13,14. Given that 1 × 109–1 × 1012 cells die in the body every day56,57, we have hypothesised that repeated and lifelong assault on healthy cells by cfChPs derived from the dying cells may be the underlying cause of ageing15,16. In support of this hypothesis we show in this article that prolonged oral administration of R–Cu to ageing mice down-regulated multiple biological hallmarks of ageing and neurodegeneration by virtue of its ability to deactivate cfChPs. Our results suggest that R–Cu may qualify as an ideal anti-ageing agent since it has the potential to simultaneously retard or delay the many conditions that are associated with ageing2. To be globally applicable, an ideal anti-ageing agent should also be inexpensive and non-toxic—the two criteria that are also met by R–Cu. The latter can be easily administered orally, and both R and Cu are already approved for human use. An illustrated summary of the study design and the mechanisms by which R–Cu generated oxygen radicals eradicate cfChPs from brain micro-environment leading to down-regulation of ageing hallmarks is provided in Fig. 10.

The mechanism(s) by which R–Cu down-regulates the multiple biological hallmarks of ageing and neurodegeneration needs elaboration. Reversal of telomere shortening by R–Cu may suggest that telomere shortening could be a consequence of DNA damage inflicted by cfChPs which shear off telomere ends causing them to shorten. We observed differential effects between female and male mice with respect to telomere abnormalities. R–Cu effects in preventing telomere abnormalities in female mice were statistically significant for all parameters tested, while this was not the case in male mice. The biological explanation for this discrepant finding remains to be determined. Breakage of telomere ends may also help to explain our detection of persistent γ-H2AX signals in telomere regions of brain cells (DNA-SCARS)—an established signature of senescence43. The bare chromosomal ends can fuse with each other to lead to chromosomal instability and aneuploidy48, as was detected in our study.

Oct 23, 2022

That Our Body Has A MEMORY OF YOUTH Has Been Proved | Dr David Sinclair Interview Clips

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

Just a quick vid. He mentions the hope of replacing current gene therapy with a pill or three which I heard Cynthia Kenyon say many years ago.

Dr David Sinclair talks about longevity genes, genes therapies and his works on resetting the eyes in this short clip.

Continue reading “That Our Body Has A MEMORY OF YOUTH Has Been Proved | Dr David Sinclair Interview Clips” »

Oct 22, 2022

New Protein Identified That May Contribute to Alzheimer’s Disease

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

Alzheimer’s disease (AD) is a debilitating progressive illness that begins with mild memory loss and slowly destroys cognitive function and memory. It currently has no cure and is predicted to affect over 100 million people worldwide by 2050. In the United States, AD is the leading cause of dementia in older adults and the 7th most common cause of death, according to the National Institute on Aging.

Ongoing Alzheimer’s research is focused on two key neurotoxic proteins: amyloid beta (Aβ) and tau. Although these proteins have been shown to be associated with AD, the levels of Aβ and tau do not consistently explain or correlate with the severity of cognitive decline for some people with the disease.

Investigators at Brigham and Women’s Hospital, a founding member of the Mass General Brigham healthcare system, set out to identify other proteins that may be directly involved with fundamental aspects of AD, like synaptic loss and neurodegeneration. They exposed laboratory neurons to human brain extracts from about 40 people who either had AD, were protected from AD despite having high Aβ and tau levels, or were protected from AD with little or no Aβ and tau in their brains.

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