Thor Balkhed/Linköping University.
Made of collagen protein from pig’s skin, the implant resembles the human cornea and is more than a pipe dream for an estimated number of 12.7 million people around the world who are blind due to their diseased corneas. The implant is a promising alternative to the transplantation of donated human corneas, which are scarce in under-developed and developing countries, where the need for them is greatest.
University of Toronto researchers are working on advanced snake-like robots with many useful applications.
Slender, flexible, and extensible robots
Now, a team led by Jessica Burgner-Kahrs, the director of the Continuum Robotics Lab at the University of Toronto Mississauga, is building very slender, flexible, and extensible robots that could be used by doctors to save lives, according to a press release by the institution. They do this by accessing difficult-to-reach places.
Researchers at the Wake Forest Institute for Regenerative Medicine (WFIRM), North Carolina, are investigating the power of cells with regenerative effects. These researchers were the first to identify that stem cells in human urine have the potential for tissue regenerative effects, and are now continuing their investigation.
In a new study, the researchers have focused on how telomerase activity affects the regenerative potential of stem cells in human urine and other types of stem cells. The study was recently published in the journal Frontiers in Cell and Developmental Biology.
A team at the University of California, Irvine, has identified a signaling molecule that potently stimulates hair growth.
A signaling molecule known as SCUBE3, which was discovered by researchers at the University of California, Irvine, has the potential to cure androgenetic alopecia, a prevalent type of hair loss in both women and men.
The research, which was recently published in the journal Developmental Cell, uncovered the precise mechanism by which the dermal papilla cells, specialized signal-producing fibroblasts found at the bottom of each hair follicle, encourage new development. Although the critical role dermal papilla cells play in regulating hair growth is widely established, the genetic basis of the activating chemicals involved is little understood.
Could let computers work at warp speed, save energy, and even make trains fly. Scientists have used DNA to overcome a nearly insurmountable obstacle to engineering materials that will revolutionize electronics. Published in the journal Science on July 28, the work was performed by researchers at th.
A team of researchers from Nanjing University of Posts and Telecommunications and the Chinese Academy of Sciences in China and Nanyang Technological University and the Agency for Science Technology and Research in Singapore developed an artificial neuron that is able to communicate using the neurotransmitter dopamine. They published their creation and expected uses for it in the journal Nature Electronics.
27 seconds.
The #medical #university of South Carolina and the University of Florida have shown the first non-invasive visualization of the #brain waste disposal clearance system in real time.
Abstract: #nature Communications: https://www.nature.com/articles/s41467-021-27887-0
McKnight Brain Institute University of Florida: https://mbi.ufl.edu/2022/01/18/mri-study-unveils-key-details…al-system/
All Sheekey vids are a must,.
A landmark study that came out in 2005 showed that if you fused the blood systems of old and young mice, a process known as heterochronic parabiosis, it rejuvenated the cells of old mice. It suggested that there was something in the blood and there were two possible explanations; there were rejuvenating factors in the young blood, or there was dilution of pro-aging factors in the old blood. Or some combination of both.
Well, since 2005 more studies have come out. A 2016 study showed that heterochronic blood exchange, so just transfer from young to old, or old to young, without fusing, had a greater impact when old blood was given to young, than when young blood was given to old. In better words, “the inhibitory effects of old blood are more pronounced than the benefits of young”.
So, somewhat ruling out “factors in the young blood”. But even more support came from studies published a few years ago, where again they supported this latter theory. You see, simply diluting the old blood, that is taking plasma out of blood of the old mice and replacing it with saline and albumin (abundant protein found in blood) had the same effect. This process, known as neutral plasma exchange, involves no Frankenstein surgery or young blood vampire like scenario. AMAZING.
But, it still didn’t address why or how? The authors of that paper left us with this rather interesting hypothetical hypothesis graph of what potentially might be happening to some factors present in the blood, but they were otherwise unsure on what or how these beneficial effects were being achieved. What were the important factors to remove?