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Epigenetic Reprogramming as an Effective Therapy Approach for Rejuvenation Therapy

Reprogramming Cells to Rejuvenate

A recent review in Ageing Research Reviews summarises the research on epigenetic programming and its potential for rejuvenation therapy.

The epigenome changes with age. These changes can affect gene regulation and cellular homeostasis. They can also play a part in age-associated phenotypes. The addition or removal chemical groups from DNA or DNA-associated protein has a profound effect on gene expression, tissues functions and identity.

The authors of this review believe that epigenetic reprogramming is one of the most promising interventions currently available to delay or stop aging. It could even reverse it at the cell level. The authors believe epigenetics is the foundation of aging. Therefore, being able impact the epigenome will allow them to address several Hallmarks of Ageing simultaneously.

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Rejuvenating Cells with Epigenetic Reprogramming

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Discovered RNA Communication Pathway Can Control Aging

Discovered a molecular pathway that controls aging

Researchers at the State University of Campinas (UNICAMP) in Brazil found that exchanging RNA molecules is one of the ways different types of cells communicate. Researchers at the State University of Campinas in Brazil have found that the lifespan of roundworms of Caenorhabditis species is reduced when the communication pathway is disrupted.

Gene published an article about the study. The study contributes to a better knowledge of the aging and diseases associated with it.

Previous research has shown that certain types of RNA are capable of being transferred from one cell into another. This allows for intertissue communication of the type that occurs when proteins and metabolites are present, for instance. This is a signaling mechanism between neighboring or adjacent cells. This is part of [the physiopathology] of many diseases, and of an organism’s normal function,\” said Marcelo Mori. He’s a professor and the article’s corresponding author at the Institute of Biology.

来源和详细信息：
https://phys.org/news/2024-02-important-molecular-pathway-aging.html

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ATR Kinase: Ensuring Telomerase Remains Stable

Cells keep telomerase under control: Study

It is hard to tell the difference between intact and broken spaghetti strands, but the natural ends of chromosomes look like DNA. Every cell in our body must be able to distinguish between the two, because the best method to repair damaged DNA is also the worst for protecting the healthy end.

Take the enzyme telomerase. It is responsible for maintaining protective end caps at the ends of chromosomes. If telomerase were to seal off a DNA strand with a telomere and prevent further repair, it would delete essential genes.

A new study published in Science explains how cells can avoid these mishaps. The findings indicate that telomerase could indeed be running amok and adding telomeres on damaged DNA. This would have happened if the ATR Kinase enzyme, which responds to DNA damages, was not present.

来源和详细信息：
https://phys.org/news/2024-02-reveals-cells-telomerase.html

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AI Tools Outshone Standard Clinical Method for Predicting Heart Transplant Rejection, Study Finds

AI tools are better than the standard clinical method at predicting rejection of heart transplants, according to a study

In 2023, more than 4,500 heart-transplants will be performed in the U.S. Organ rejection is a serious risk. While this life-saving procedure improves quality of life for many recipients and increases their longevity, it can also be a life-threatening operation.

Researchers from Emory University Case Western Reserve University, and the University of Pennsylvania have developed artificial intelligence tools that can be used to analyze cardiac biopsy images in order to better predict rejection. This will help to ensure that patients receive the best post-transplant care.

The histologic grading is used by clinicians to diagnose acute rejection. There are some limitations with this method. It assigns International Society of Heart and Lung Transplantation’s (ISHLT) histologic grade corresponding to mild, moderate and serious rejection.

来源和详细信息：
https://medicalxpress.com/news/2024-02-ai-tools-heart-transplant-standard.html

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Unveiling Neural Networks: Exploiting Novel Rabies Viral Vectors for Brain Mapping

Brain Mapping with Novel Rabies Viral vectors

Researchers have developed 20 novel recombinant viral vectors for mapping neural circuits in Alzheimer’s and aging studies. These vectors highlight microstructural differences in brain neurons by using enhanced fluorescent proteins. They provide insights into neural networks on both a micro and macro level.

They are powerful tools to dissect neural circuitry, both in a healthy and ill state. This innovation will open new treatment pathways and be shared with the neuroscientific community by UCI’s Center for Neural Circuit Mapping.

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Brain Mapping With Novel Rabies Viral Vectors