Lifeboat Foundation

Scientists have created the first synthetic version of a cardiac stem cell, offering therapeutic benefits comparable to those from natural stem cells — but without the risks and limitations, according to researchers from North Carolina State University, the University of North Carolina at Chapel Hill, and First Affiliated Hospital of Zhengzhou University in China.

The newly created synthetic stem cells cannot replicate. That means they could reduce some of the risks associated with natural stem-cell therapies — including tumor growth and immune rejection. The synthetic stem calls would also avoid the fragility of natural stem cells, which require careful storage and a multi-step process of typing and characterization before they can be used.

Continue reading “Synthetic stem cells offer benefits of natural stem cells without the risks” »

Read more

At ease on unsteady seas.

Her death is a reminder that antibiotic-resistant bacteria are getting worse, even as they garner little attention.

Senescent cell therapy for treating age-related diseases could also help people after chemotherapy.

Senescent cell removal therapies could help reduce the damaging impact chemotherapy has on patients as well as being used to address one of the aging processes to treat diseases.

#aging #cancer

Continue reading “Senescent cell removal could help chemotherapy patients” »

The last of the fun videos about the immune system and how it works.

THE FINAL SHOWDOWN! This is the last episode on the immune system and also the very last episode of Crash Course Anatomy & Physiology. In it, Hank explains how the cellular immune response uses helper, cytotoxic, and regulatory T cells to attack body cells compromised by pathogens. He also explores how cytokines activate B and T cells, and what happens if your immune system goes rogue and starts causing autoimmune trouble.

Continue reading “Immune System, part 3: Crash Course A&P #47” »

Looks like hacking might be alot older then we thought lmao.

Biologists at UC San Diego have documented for the first time how very large viruses reprogram the cellular machinery of bacteria during infection to more closely resemble an animal or human cell—a process that allows these alien invaders to trick cells into producing hundreds of new viruses, which eventually explode from and kill the cells they infect.

In a paper published in the January 13 issue of Science, the researchers conducted a series of experiments that allowed them to view in detail what happens inside bacterial cells as the invading viruses replicate.

Continue reading “Biologists discover how viruses hijack cell’s machinery” »

Over millions of years retroviruses have been incorporated into our human DNA, where they today make up almost 10 per cent of the total genome. A research group at Lund University in Sweden has now discovered a mechanism through which these retroviruses may have an impact on gene expression. This means that they may have played a significant role in the development of the human brain as well as in various neurological diseases.

Retroviruses are a special group of viruses including some which are dangerous, such as HIV, while others are believed to be harmless. The viruses studied by Johan Jakobsson and his colleagues in Lund are called endogenous retroviruses (ERV) as they have existed in the human genome for millions of years. They can be found in a part of DNA that was previously considered unimportant, so called junk-DNA — a notion that researchers have now started to reconsider.

“The genes that control the production of various proteins in the body represent a smaller proportion of our DNA than endogenous retroviruses. They account for approximately 2 per cent, while retroviruses account for 8–10 per cent of the total genome. If it turns out that they are able to influence the production of proteins, this will provide us with a huge new source of information about the human brain,” says Johan Jakobsson.

Continue reading “Salmonella Could Be Used To Fight Brain Tumors” »

Over millions of years retroviruses have been incorporated into our human DNA, where they today make up almost 10 per cent of the total genome. A research group at Lund University in Sweden has now discovered a mechanism through which these retroviruses may have an impact on gene expression. This means that they may have played a significant role in the development of the human brain as well as in various neurological diseases.

Retroviruses are a special group of viruses including some which are dangerous, such as HIV, while others are believed to be harmless. The viruses studied by Johan Jakobsson and his colleagues in Lund are called endogenous retroviruses (ERV) as they have existed in the human genome for millions of years. They can be found in a part of DNA that was previously considered unimportant, so called junk-DNA — a notion that researchers have now started to reconsider.

“The genes that control the production of various proteins in the body represent a smaller proportion of our DNA than endogenous retroviruses. They account for approximately 2 per cent, while retroviruses account for 8–10 per cent of the total genome. If it turns out that they are able to influence the production of proteins, this will provide us with a huge new source of information about the human brain,” says Johan Jakobsson.