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Archive for the ‘genetics’ category: Page 16

Oct 31, 2023

Greener neighborhoods stop us from aging on a genetic level

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

A new study is finding that greener neighborhoods protect telomeres which prevent aging on a genetic level.


The role of telomeres in aging

Telomeres are repetitive sequences of DNA found at the ends of chromosomes that play a crucial role in preserving the integrity and stability of the genetic material within a cell.

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Oct 30, 2023

Gene Transfer Leads to Longer Life and Healthspan

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

The naked mole rat won’t win any beauty contests, but it could possibly win in the talent category. Its superpower: fighting the aging process to live several times longer than other animals its size, in a state of youthful vigor.

It’s believed that naked mole rats experience all the normal processes of wear and tear over their lifespan, but that they’re exceptionally good at repairing the damage from oxygen free radicals and the DNA errors that accumulate over time. Even though they possess genes that make them vulnerable to cancer, they rarely develop the disease, or any other age-related disease, for that matter. Naked mole rats are known to live for over 40 years without any signs of aging, whereas mice live on average about two years and are highly prone to cancer.

Now, these remarkable animals may be able to share their superpower with other species. In August, a study provided what may be the first proof-of-principle that genetic material transferred from one species can increase both longevity and healthspan in a recipient animal.

Oct 29, 2023

Telomere Length Test #5 in 2023: Which Dietary Factors Are Significantly Correlated?

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

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Oct 29, 2023

Engineering CRISPR Cures: An Interview with Fyodor Urnov

Posted by in categories: biotech/medical, engineering, genetics

Fyodor Urnov, PhD, is a pioneer in the field of genome editing and one of the scientists most invested in expanding the availability and utility of CRISPR-based therapies to the broadest possible population. He envisions a world in which genome editing can treat the nearly 400 million people who are suffering from one of the 7,000 diseases brought on by gene mutations.

Oct 29, 2023

Migraines linked to rare genetic variants that could boost treatments

Posted by in categories: biotech/medical, genetics

We know that migraines, which are recurrent and sometimes debilitating headaches, have some genetic basis, but the link with our DNA isn’t entirely clear. Newly identified genetic variants could help in developing treatments.

By Chen Ly

Oct 28, 2023

Unexpected ‘Fish’ Cell Found in Human Lungs Could Be Key to Cystic Fibrosis

Posted by in categories: biotech/medical, genetics

A type of cell once only thought to exist in the gills of freshwater fish and the skin of frogs, but recently found in humans lungs, has given scientists new insight into the underlying cause of cystic fibrosis (CF).

CF is a progressive, genetic disease that impacts the lungs and other organs, sometimes causing severe symptoms that can be life-threatening.

The disease is marked by the absence or mutation of a protein in the lungs called the cystic fibrosis transmembrane conductance regulator (CFTR).

Oct 28, 2023

A new cure for sickle cell disease may be coming. FDA advisers will review it next week

Posted by in categories: bioengineering, biotech/medical, genetics

The only cure for painful sickle cell disease today is a bone marrow transplant. But soon there may be a new cure that attacks the disorder at its genetic source.

On Tuesday, advisers to the Food and Drug Administration will review a gene therapy for the inherited blood disorder, which in the U.S. mostly affects Black people. Issues they will consider include whether more research is needed into possible unintended consequences of the treatment.

If approved by the FDA, it would be the first gene therapy on the U.S. market based on CRISPR, the gene editing tool that won its inventors the Nobel Prize in 2020.

Oct 27, 2023

New software tool provides a way for safer design of genome editing

Posted by in categories: bioengineering, biotech/medical, food, genetics

A team of researchers has developed a software tool called DANGER (Deleterious and ANticipatable Guides Evaluated by RNA-sequencing) analysis that provides a way for the safer design of genome editing in all organisms with a transcriptome. For about a decade, researchers have used the CRISPR technology for genome editing. However, there are some challenges in the use of CRISPR. The DANGER analysis overcomes these challenges and allows researchers to perform safer on-and off-target assessments without a reference genome. It holds the potential for applications in medicine, agriculture, and biological research.

Their work is published in the journal Bioinformatics Advances on August 23, 2023.

Genome editing, or gene editing, refers to technologies that allow researchers to change the genomic DNA of an organism. With these technologies, researchers can add, remove or alter genetic material in the genome.

Oct 25, 2023

Groundbreaking Discoveries About Human Brain and Neuronal Complexity

Posted by in categories: bitcoin, cryptocurrencies, genetics, neuroscience

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Hello and welcome! My name is Anton and in this video, we will talk about recent discoveries about human brain and various types of neuronal cells.
Links:
https://www.nature.com/articles/d41586-023-03192-2
https://nemoarchive.org/
https://www.science.org/collections/brain-cell-census.
https://www.science.org/doi/10.1126/science.adc8810
https://news.rub.de/english/press-releases/2022-06-0…ir-neurons.
https://www.nature.com/articles/s41559-022-01933-6
https://www.nature.com/articles/s41586-023-06502-w.
https://www.nature.com/articles/s41593-023-01284-w.
https://elifesciences.org/articles/76143
Previous video on major discoveries: https://youtu.be/iGdFh3ENjzc.
More about Neanderthals: https://youtu.be/BvrBl9-TbBs.
#brain #neuron #neuroscience.

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Oct 25, 2023

Study: Novel small molecule 5D4 disrupts several molecular pathways that lead to cancer growth

Posted by in categories: biotech/medical, genetics

Researchers at Baylor College of Medicine have identified a small molecule named 5D4 that can suppress the growth of breast and ovarian cancers in animal models. 5D4 works by binding to TopBP1 protein in cancer cells, disrupting its interactions with several pathways that promote cancer growth. Combining 5D4 with another cancer inhibitor, talazoparib, enhances the effectiveness of the anti-cancer activity.

The study, published in the Proceedings of the National Academy of Sciences, strongly supports continuing the investigation toward further developing this strategy for clinical use.

“Cancer development involves many steps of genetic alterations and signaling pathway deregulation. About 10 years ago, our team discovered that protein TopBP1 is at a convergent point of multiple cellular pathways involved in cancer growth and progression, making it a potential candidate for targeted cancer therapy,” said corresponding author Dr. Weei-Chin Lin, professor of medicine-hematology and oncology and of molecular and cellular biology at Baylor. He also is a member of Baylor’s Dan L Duncan Comprehensive Cancer Center. “Our idea was to identify molecules that would bind to TopBP1 and interfere with its interactions with molecular pathways that promote cancer growth.”

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