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Recent research challenges the long-standing understanding of the end-replication problem in DNA, revealing two distinct issues rather than one.
Half a century ago, scientists Jim Watson and Alexey Olovnikov independently realized that there was a problem with how our DNA gets copied. A quirk of linear DNA replication dictated that telomeres that protect the ends of chromosomes should have been growing shorter with each round of replication, a phenomenon known as the end-replication problem.
Continue reading “Beyond Telomerase: The Quest for Chromosome Immortality” »
On the way to rejuvenation using AI and multidisciplinary knowledge!
An AI-generated small-molecule inhibitor treats fibrosis in vivo and in phase I clinical trials.
Couple things. Mr Johnson is self aware and has a sense of humor about it. And another argument you can use against the overpopulation people is that there is currently one acre of habitable land available for every person on the planet.
“If you look at the brain chemically, it’s like a soup with a bunch of ingredients,” said Dr. Fan Lam.
Can we map the brain to show its behavior patterns when a patient is healthy and sick? This is what a recent study published in Nature Methods hopes to address as a team of researchers at the University of Illinois Urbana-Champaign used a $3 million grant obtained from the National Institute of Aging to develop a novel approach to mapping brain behavior when a patient is both healthy and sick. This study holds the potential to help researchers, medical professionals, and patients better understand how to treat diseases.
“If you look at the brain chemically, it’s like a soup with a bunch of ingredients,” said Dr. Fan Lam, who is an assistant professor of bioengineering at the University of Illinois Urbana-Champaign and a co-author on the study. “Understanding the biochemistry of the brain, how it organizes spatiotemporally, and how those chemical reactions support computing is critical to having a better idea of how the brain functions in health as well as during disease.”
Continue reading “3D Molecular Maps of the Brain: Unveiling Complexity with Spatial Omics” »
Scientists have revealed surprising parallels between aging and schizophrenia. There seem to be similar patterns of gene activity in the brains of people who are aging, and in those with schizophrenia. The same mechanisms may underlie the cognitive disruptions seen in older adults and people with schizophrenia. The findings have been reported in Nature.
In this work, the researchers analyzed gene expression at the single-cell level in post-mortem brain samples from 94 people with schizophrenia and 97 unaffected individuals. This gene activity was altered in two types of cells found in the brain, both neurons and astrocytes. In all, 1.2 million cells from were analyzed. This showed that in neurons, expression changed in genes that are associated with portions of synapses, the space where neurons meet and communicate; and in astrocytes, in genes that are related to synaptic function.
Startup seeks new biomarkers as it develops cellular reprogramming drugs designed to reverse brain aging and combat dementia.
Researchers from the UoC’s Center for Biochemistry at the Faculty of Medicine and the UoC CECAD Cluster of Excellence in Aging Research have discovered that an excessive immune response can be prevented by the intramembrane protease RHBDL4.
In a study now published in Nature Communications under the title “RHBDL4-triggered downregulation of COPII adaptor protein TMED7 suppresses TLR4-mediated inflammatory signaling,” the previously unknown regulatory mechanism is described.
The researchers discovered that the cleavage of a cargo receptor by a so-called intramembrane protease reduces the localization of a central immune receptor on the cell surface and thereby the risk of an overreaction of the immune system.
Harvard longevity researcher David Sinclair recently made an astonishing assertion: Scientists had developed the first pill “proven to reverse aging” in dogs.
