Learn what to watch for and how to manage the other symptoms of Alzheimer’s disease.
Category: biotech/medical – Page 924
What’s Stopping Us From Building a Warp Drive?
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A faster-than-light (FTL) warp drive would arguably represent the most important invention of all time. In 1994, Miguel Alcubierre gave all of us hope as he found a solution within general relativity that would cause the necessary warping of space. But after nearly 30 years of further study, what does our current understanding of physics say about the feasibility of a warp drive?
Written & presented by Prof. David Kipping. Thanks to Bobrick Martire for clarifications and to John Michael Godier and team for audio from their interview with Alcubierre (https://youtu.be/JafY92PhgKU). Thumbnail image by Zamanday Yolculugunu (www.zamandayolculuk.com)
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REFERENCES
More research is examining how we carry the ‘genetic legacy’ of extinct human species
And the answers point to a profound reality: We have far more in common with our extinct cousins than we ever thought.
Neanderthals within us
Until recently, the genetic legacy from ancient humans was invisible because scientists were limited to what they could glean from the shape and size of bones. But there has been a steady stream of discoveries from ancient DNA, an area of study pioneered by Nobel Prize winner Svante Paabo who first pieced together a Neanderthal genome.
Scientists Discover That Australian Honeypot Ant Honey Possesses Unique Anti-Microbial Properties
Researchers have found that the honey produced by ants native to Australia possesses unique anti-microbial activity against bacteria and fungi that could make the liquid useful medicinally.
The study, which was recently published in the journal PeerJ, was led by Andrew Dong and Dr. Kenya Fernandes from the Carter Lab at the University of Sydney. The lab is under the guidance of Professor Dee Carter from the School of Life and Environmental Sciences and the Sydney Institute for Infectious Diseases.
The team studied the Australian honeypot ant, Camponotus inflatus, which is found throughout desert areas mainly in Western Australia and the Northern Territory.
Amyloid Beta and Serotonin May Be Keys to Predicting Who Develops Late-Life Depression
Image from a Johns Hopkins Medicine study showing PET scans from brains of people with and without late-life depression. The brains of patients with late-life depression show more yellow to red regions (scans on the left), indicating higher amyloid beta protein levels, and more blue regions (scans on the right), indicating lower serotonin transporter levels. Both imaging measures are markers of late-life depression. Credit: Graphic adapted from Smith et al, Nature, Sept. 13, 2021.
Mosquitoes’ taste for blood is finally explained
Mosquitoes can taste your blood using unique sensory abilities. Can we use that to keep them off us?
Using AI to find disease-causing genes
A new artificial intelligence program is helping scientists speedily sift through thousands of data sets and millions of papers to home in on genes that underly disease, drastically condensing a search process that once took months.
Using computer software, scientists can scan entire genomes, or an organism’s full set of DNA, of mice that model human diseases. The goal: to identify genetic mutations that cause those diseases and open new doors for scientists to better harness genetics to develop disease treatments, said Gary Peltz, MD, PhD, professor of anesthesiology, perioperative and pain medicine at Stanford Medicine.
But to do that, scientists must search through massive sets of genomic data, which yields more false positives than researchers care to admit. It’s also time intensive. Peltz wanted to make the genetic discovery process easier, faster and more accurate.
Researchers crack genetic code of rare kidney cancer
The genetic code of a rare form of kidney cancer, called reninoma, has been studied for the first time. In a paper, published in Nature Communications, researchers at the Wellcome Sanger Institute, Great Ormond Street Hospital and The Royal Free Hospital also revealed a new drug target that could serve as an alternative treatment if surgery is not recommended.
There are around 100 cases of reninoma reported to date worldwide, and it is among the rarest of tumors in humans. Although it can usually be cured with surgery, it can cause severe hypertension or it can spread and develop into metastases. There are no existing medical treatments for reninoma and management involves surgery alone. Until now, it had been unknown what genetic error causes reninoma.
In the new study, a collaboration between the Wellcome Sanger Institute and Great Ormond Street Hospital and The Royal Free Hospital, researchers found that there is a specific error in the genetic code of a known cancer gene, NOTCH1, that is behind the development of this rare cancer.
