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Archive for the ‘biotech/medical’ category: Page 1306

Aug 26, 2020

Researchers find method to regrow cartilage in the joints

Posted by in category: biotech/medical

In laboratory studies, Stanford School of Medicine researchers have found a way to regenerate the cartilage that eases movement between bones.

Aug 26, 2020

US defense officials eyeing potential threat of coronavirus as bioweapon

Posted by in categories: biotech/medical, chemistry, military

Basically it behaves like a bioweapon as it has a spread that has encompassed the earth.


US intelligence officials are probing the possibility that America’s enemies might use the coronavirus as a bioweapon, according to an alarming report.

The Department of Defense is monitoring for the potential of the virus to be weaponized, possibly against prominent, high-level targets, three people close to the matter told Politico.

Continue reading “US defense officials eyeing potential threat of coronavirus as bioweapon” »

Aug 26, 2020

Africa has eradicated wild poliovirus

Posted by in category: biotech/medical

Africa has been declared free of wild polio, the second human virus to be eradicated from the continent since smallpox 40 years ago.

Aug 26, 2020

Functioning liver cells regenerate in pig lymph nodes, and a human trial is coming

Posted by in category: biotech/medical

Pitt researchers demonstrated that pigs can grow functioning auxiliary livers in their abdominal lymph nodes after their own hepatocytes are isolated and injected into them. Startup LyGenesis is working to bring the method into human clinical trials later this year.

Aug 26, 2020

DNA Repair Mechanism

Posted by in category: biotech/medical

This Video Explains the DNA Repair Mechanisms That Are Mismatched Repair System (MMR), Base Excision Repair (BER) And Nucleotide Excision Repair (NER).

Aug 26, 2020

Mosquitoes armed with bacteria beat back dengue virus

Posted by in categories: biotech/medical, health

Nov 2019 NATIONAL HARBOR, MARYLAND

—In a handful of cities around the world, mosquitoes have been armed with a microscopic weapon against disease. The bacterium Wolbachia pipientis blocks the insects’ ability to spread fearsome viruses such as dengue, Zika, and chikungunya. Since 2011, researchers have been injecting Wolbachia into the eggs of Aedes aegypti mosquitoes and releasing the hatched insects, which spread this protection to their offspring. But the field has been waiting for evidence that this approach actually reduces disease in people.

Field trials suggest public health benefit to spreading Wolbachia.

Aug 25, 2020

As researchers race to find successful treatments and an eventual cure for COVID-19, everyone is getting a real-time glimpse into the messiness of scientific discovery

Posted by in category: biotech/medical

We’re all impatient for solid recommendations based on rigorous testing and established facts, but in a fast-moving field, that’s rarely possible. And someone always has to be the guinea pig. This was just as true 130 years ago when Niels Ryberg Finsen began experimenting with treating disease with UV light. He started by testing on himself.


Niels Ryberg Finsen pioneered therapeutic ultraviolet lamps and won himself a Nobel Prize.

Aug 25, 2020

Origami-inspired miniature manipulator improves precision and control of teleoperated surgical procedures

Posted by in categories: biotech/medical, robotics/AI

Minimally invasive laparoscopic surgery, in which a surgeon uses tools and a tiny camera inserted into small incisions to perform operations, has made surgical procedures safer for both patients and doctors over the last half-century. Recently, surgical robots have started to appear in operating rooms to further assist surgeons by allowing them to manipulate multiple tools at once with greater precision, flexibility, and control than is possible with traditional techniques. However, these robotic systems are extremely large, often taking up an entire room, and their tools can be much larger than the delicate tissues and structures on which they operate.

A collaboration between Wyss Associate Faculty member Robert Wood, Ph.D. and Robotics Engineer Hiroyuki Suzuki of Sony Corporation has brought surgical robotics down to the microscale by creating a new, origami-inspired miniature remote center of motion manipulator (the “mini-RCM”). The robot is the size of a tennis ball, weighs about as much as a penny, and successfully performed a difficult mock surgical task, as described in a recent issue of Nature Machine Intelligence.

“The Wood lab’s unique technical capabilities for making have led to a number of impressive inventions over the last few years, and I was convinced that it also had the potential to make a breakthrough in the field of medical manipulators as well,” said Suzuki, who began working with Wood on the mini-RCM in 2018 as part of a Harvard-Sony collaboration. “This project has been a great success.”

Aug 25, 2020

Researchers develop new system to conduct accurate telomere profiling in less than 3 hours

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

The plastic tips attached to the ends of shoelaces keep them from fraying. Telomeres are repetitive DNA (deoxyribonucleic acid) sequences that serve a similar function at the end of chromosomes, protecting its accompanying genetic material against genome instability, preventing cancers and regulating the aging process.

Each time a in our body, the telomeres shorten, thus functioning like a molecular “clock” of the cell as the shortening increases progressively with aging. An accurate measure of the quantity and length of these telomeres, or “clocks,” can provide vital information if a cell is aging normally, or abnormally, as in the case of cancer.

To come up with an innovative way to diagnose telomere abnormalities, a research team led by Assistant Professor Cheow Lih Feng from the NUS Institute for Health Innovation & Technology (iHealthtech) has developed a novel method to measure the absolute telomere length of individual telomeres in less than three hours. This unique telomere profiling method can process up to 48 samples from low amounts (1 ng) of DNA.

Aug 25, 2020

Dementia Kills Nearly Three Times More People Than Previously Thought

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

Summary: An estimated 13.6% of deaths in the U.S could be attributed to dementia. The number is 2.7 times higher than the official reported dementia-related deaths. The underestimation varies greatly by race, with 7.1 times more older Black adults, and 4.1 times more Hispanic adults, dying from dementia that public records indicate.

Source: boston university school of medicine.

Dementia may be an underlying cause of nearly three times more deaths in the U.S. than official records show, according to a new Boston University School of Public Health (BUSPH) study.