Menu

Blog

Archive for the ‘genetics’ category: Page 145

Dec 6, 2022

Study finds DNA repair declines with age, limiting fertility

Posted by in categories: biotech/medical, genetics

Even worms have a ticking fertility clock. Older worms are less efficient at repairing broken DNA strands while making egg cells—part of a process that’s essential for fertility. A new study from University of Oregon (UO) biologists suggests one possible reason that reproduction slows with age.

Researchers from the lab of Diana Libuda report the findings in a paper published Nov. 7 in PLOS Genetics.

Each sperm or egg cell has only half the number of chromosomes found in a regular cell. During meiosis, the cell division process that forms sperm and eggs, the parent cells must evenly divide their DNA. The costs of error can be high, since incorrectly divided chromosomes are a major cause of birth defects.

Dec 5, 2022

Should We Be Genetically Engineering Humans

Posted by in categories: engineering, genetics

Genetically engineering humans is a controversial topic. Some people believe that it is unethical, while others believe that it could be beneficial to humanity. There are pros and cons to both sides of the argument, and it is important to consider all of them before making a decision whether we should be genetically engineering humans or not.

Dec 5, 2022

The world’s smallest life form can now move, thanks to genetic engineering

Posted by in categories: bioengineering, biological, evolution, genetics

In a breakthrough study, Japanese researchers at Osaka Metropolitan University have engineered the smallest motile life form ever. They introduced seven bacterial proteins into a synthetic bacterium, allowing it to move independently.

The rise of synthetic biology.

Continue reading “The world’s smallest life form can now move, thanks to genetic engineering” »

Dec 5, 2022

Age Reversal

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

A lot of anti-ageing vids lately. Good. This concerns Turn.bio. Though not in this vid, MH does have a habit of asking ‘When?” at some point. Previously Turn.bio said they have a first working treatment in just a few years so we’ll see what happens in vids to come of this interview.


In this video Professor Sebastiano introduces ERA, Epigenetic Reprogramming of Age technology and talks about his thoughts on some of the causes of aging.

Continue reading “Age Reversal” »

Dec 4, 2022

HIV Vaccine Trial Makes Pivotal Leap Toward Making ‘Super Antibodies’

Posted by in categories: biotech/medical, genetics

The announcement comes from the journal Science, which published Phase 1 results of a small clinical trial for a vaccine technology that aims to cause the body to create a rare kind of cell.

“At the most general level, the trial results show that one can design vaccines that induce antibodies with pre-specified genetic features, and this may herald a new era of precision vaccines,” William Schief, PhD, a researcher at The Scripps Research Institute and study co-author, told the American Association for the Advancement of Science (AAAS).

The study was the first to test the approach in humans and was effective in 97% – or 35 of 36 – participants. The vaccine technology is called “germline targeting.” Trial results show that “one can design a vaccine that elicits made-to-order antibodies in humans,” Schief said in a news release.

Dec 4, 2022

The key to curing cancer in humans may be discovered in dogs

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

The key to curing cancer may be hidden within the genetic differences between humans and dogs. According to scientists working with the National Institutes of Health, dogs get the same diseases that we do, and they have many of the same genes that we do, too.

Dec 4, 2022

The Thymus As A Key Target For Aging Intervention — Dr. Greg Fahy — EARD 2022

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

This is a followup trial result to the first trial that reported 2.5 years of epigenetic age reversal This has interesting reports from the actual patients about how they feel and the changes it made to them. After the first trial I sent an email to see if I could do this but I have IBS which Fahy said would disqualify me.


Dr. Greg Fahy gives an update on the TRIIM-X clinical trial at EARD 2022.

Continue reading “The Thymus As A Key Target For Aging Intervention — Dr. Greg Fahy — EARD 2022” »

Dec 4, 2022

Methionine Restriction Extends Lifespan: Roles For SCFAs And FGF21, But Not Calorie Restriction

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

Join us on Patreon!
https://www.patreon.com/MichaelLustgartenPhD

TruDiagnostic Discount Link (Epigenetic Testing)
CONQUERAGING!
https://bit.ly/3Rken0n.

Continue reading “Methionine Restriction Extends Lifespan: Roles For SCFAs And FGF21, But Not Calorie Restriction” »

Dec 2, 2022

Autism-linked gene found to shape nerve connections

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

A gene linked to autism spectrum disorders plays a critical role in early brain development and may shape the formation of both normal and atypical nerve connections in the brain, according to a new study by Weill Cornell Medicine investigators.

The study, published Nov. 28 in Neuron, employed a combination of sophisticated genetic experiments in mice and analysis of human brain imaging data to better understand why mutations in a gene called Gabrb3 are linked to a high risk of developing (ASD) and a related condition called Angelman Syndrome. Both conditions involve abnormal behaviors and unusual responses to sensory stimuli, which appear to stem, at least in part, from the formation of atypical connections between neurons in the brain.

Neuron al connections in the brain, and developmental synchronization of neuronal networks, are perturbed in individuals with , and there are that are implicated in the pathogenesis of ASD,” said co-first author Dr. Rachel Babij, a former student in the Weill Cornell/Rockefeller/Sloan Kettering Tri-Institutional MD-Ph. D. program in the laboratory of Natalia De Marco García, an associate professor in the Feil Family Brain and Mind Research Institute at Weill Cornell Medicine.

Dec 2, 2022

Researchers discover a new function of CRISPR/Cas9 gene scissors

Posted by in categories: biotech/medical, genetics

For several years now, the CRISPR/Cas9 gene scissors have been causing a sensation in science and medicine. This new tool of molecular biology has its origins in an ancient bacterial immune system. It protects bacteria from attack by so-called phages, i. e. viruses that infect bacteria. Researchers from the Institute of Structural Biology at the University Hospital Bonn (UKB) and the Medical Faculty of the University of Bonn, in cooperation with the partner University of St Andrews in Scotland and the European Molecular Biology Laboratory in Hamburg, have now discovered a new function of the gene scissors. The study was published yesterday in the renowned scientific journal “Nature”.

Bacteria and phages have been engaged in a life-and-death struggle on Earth since time immemorial. When an attacking phage injects its genetic material into a bacterium, it is forced to produce new phages, which in turn infect more bacteria. Some bacteria have evolved the CRISPR system in response. With this bacterial immune system, the phage genetic material is recognized and destroyed.

At the same time, the resulting fragments are integrated into the genome of the bacterium. This creates a kind of library that the CRISPR immune system can access again and again and is thus armed for future attacks. In addition, it was discovered that so-called type III variants of the gene scissors produce small signal molecules. With the help of these small molecules, the bacteria switch on a complex emergency plan. This ensures that a virus can be combated optimally and on a broad front.