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Stem Cell Therapy: Past, Present, and Future Aspects

Background/Objectives: Stem cells with the ability to differentiate into other cell types and self-renewal afford a powerful apparatus for the healthcare system to replace and rejuvenate damaged tissues and organs in the treatment of various diseases. For the last few decades, stem cell therapy (SCT) has evolved from being an experimental approach to a recognized clinical treatment. SCT and regenerative medicine have garnered tremendous attention and become prominent tools, especially in treating chronic and acute disease and addressing organ failures, and in their repair and replacement, which are directly associated with human health, life, and longevity. Methods: In this review, after providing a brief history and need for the SCT, the employed delivery techniques utilizing various biomaterials, as well as recent developments in nanotechnological methods, are presented.

Researchers Have Discovered a New Way To Reduce Chronic Nerve Pain

A cancer-linked protein called BRAF may help drive chronic nerve pain, and existing cancer drugs targeting it reduced pain sensitivity in preclinical models.

Chronic nerve pain can persist long after an injury and often responds poorly to standard pain medications. Researchers at The University of Texas MD Anderson Cancer Center now report evidence that BRAF, a protein best known for its role in cancer, may also help initiate, intensify, and sustain pain signaling after nerve damage.

In preclinical models, drugs that inhibit BRAF signaling reduced pain sensitivity, pointing to a possible new use for treatments already developed for cancer.

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Robots learn new skills from a single video—in just 29 seconds

Teaching robots to tackle new tasks can be both time-consuming and costly. Moreover, additional training sometimes hinders their performance on previously learned tasks.

Researchers at Beijing Institute of Technology, X SQUARE ROBOT and Tsinghua University recently developed HOST (Human-to-robot One-Shot Skill AcquisiTion), a new framework that could allow robots to acquire new skills faster and more efficiently. Their proposed learning approach, introduced in a paper posted to the arXiv preprint server, allows a robot to acquire a new skill from a single video showing a human demonstration without compromising previously acquired abilities.

“The ability to acquire skills rapidly and effortlessly while retaining those already mastered is essential for robots,” wrote Guangyan Chen, Meiling Wang and their colleagues in their paper.

European scientists create ‘little Big Bang’ to study the universe’s origins

The experiment works by colliding the oxygen and neon nuclei to create a tiny blob of quark-gluon plasma — the same super-hot “soup” scientists think filled the universe right after the Big Bang.

The collision produces a droplet of that plasma that expands and cools in an instant, too fast for scientists to observe directly, so instead, scientists studied the particles it leaves behind, which turned out to reveal something unexpected, Zhou explained.

What they found, according to the study, is when two oxygen atoms smashed together, the particles sprayed out in a rounded pattern, but when two neon atoms collided, the particles actually came out shaped more like a bowling pin — which matches the true geometry of a neon nucleus, according to the study.

Scientists discover why damaged nerves struggle to heal

Scientists have identified a protein that acts like a brake on the nervous system’s ability to repair damaged connections. Blocking AHR helped injured nerve fibers regrow and improved movement and sensation in mice with nerve or spinal cord injuries. The discovery could eventually point toward new treatments designed to shift neurons from simply surviving an injury to actively rebuilding themselves.

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