Lifeboat Foundation

It probably didn’t feel like much, but that simple kind of motion required the concerted effort of millions of different neurons in several regions of your brain, followed by signals sent at 200 mph from your brain to your spinal cord and then to the muscles that contracted to move your arm.

At the cellular level, that quick motion is a highly complicated process and, like most things that involve the human brain, scientists don’t fully understand how it all comes together.

Continue reading “An ultra detailed map of the brain region that controls movement, from mice to monkeys to humans” »

DNA contains the genetic information that influences everything from eye color to illness and disorder susceptibility. Genes, which are around 20,000 pieces of DNA in the human body, perform various vital tasks in our cells. Despite this, these genes comprise up less than 2% of the genome. The remaining base pairs in the genome are referred to as “non-coding.” They include less well-understood instructions on when and where genes should be created or expressed in the human body.

DeepMind, in collaboration with their Alphabet colleagues at Calico, introduces Enformer, a neural network architecture that accurately predicts gene expression from DNA sequences.

Earlier studies on gene expression used convolutional neural networks as key building blocks. However, their accuracy and usefulness have been hampered by problems in modeling the influence of distal enhancers on gene expression. The proposed new method is based on Basenji2, a program that can predict regulatory activity from DNA sequences of up to 40,000 base pairs.

In January 2,020 at the event where General Motors automated driving division Cruise took the wraps off the Origin robotaxi, a slide briefly appeared in the presentation showing a version of the vehicle for package deliveries. Today during the General Motors investor day, Cruise CEO Dan Ammann provided more details about the company’s business model and revenue opportunities and showed both a delivery module and a wheelchair accessible version.

Cruise has been providing automated deliveries in partnership with Walmart WMT +0.7% in the Phoenix area since late 2020. Throughout much of last year during the worst early phases of the pandemic in the San Francisco area, Cruise vehicles were used to provide more than 50,000 food deliveries to medical personnel and those in need. Those efforts have all utilized the current test fleet of Chevrolet Bolts which are not optimized for goods delivery.

There’s a lot of excitement at the intersection of artificial intelligence and health care. AI has already been used to improve disease treatment and detection, discover promising new drugs, identify links between genes and diseases, and more.

By analyzing large datasets and finding patterns, virtually any new algorithm has the potential to help patients — AI researchers just need access to the right data to train and test those algorithms. Hospitals, understandably, are hesitant to share sensitive patient information with research teams. When they do share data, it’s difficult to verify that researchers are only using the data they need and deleting it after they’re done.

Secure AI Labs (SAIL) is addressing those problems with a technology that lets AI algorithms run on encrypted datasets that never leave the data owner’s system. Health care organizations can control how their datasets are used, while researchers can protect the confidentiality of their models and search queries. Neither party needs to see the data or the model to collaborate.

With almost instant improvement.

A team of researchers from the University of California, San Francisco Health has successfully treated a patient with severe depression by targeting the specific brain circuit involved in depressive brain patterns and resetting them thanks to a new proof-of-concept intervention.

Continue reading “A New Brain Implant Relieved Treatment-Resistant Depression, in a World First” »

Based on Transformers, our new architecture advances genetic research by improving the ability to predict how DNA sequence influences gene expression.

When the Human Genome Project succeeded in mapping the DNA sequence of the human genome, the international research community were excited by the opportunity to better understand the genetic instructions that influence human health and development. DNA carries the genetic information that determines everything from eye colour to susceptibility to certain diseases and disorders. The roughly 20,000 sections of DNA in the human body known as genes contain instructions about the amino acid sequence of proteins, which perform numerous essential functions in our cells. Yet these genes make up less than 2% of the genome. The remaining base pairs — which account for 98% of the 3 billion “letters” in the genome — are called “non-coding” and contain less well-understood instructions about when and where genes should be produced or expressed in the human body.

University of Kentucky College of Medicine researchers were part of a new study that gives insight into how limb development evolved in vertebrates.

The findings, published in Current Biology Oct. 4 identify a gene that plays a central role in the evolution of limb development in vertebrates. By manipulating this gene in mice, researchers were able to activate an ancestral form of limb development seen in early tetrapods (four-legged vertebrates).

In the limbs of all tetrapods, the bones on the hands and feet on the outside edge form first, known as postaxial development. The study focuses on salamanders, which are the only exception to this rule: their limb bones develop preaxially, or from the inside edge; the thumb before pinky.

Human Factors, Ethical Artificial Intelligence, And Healthy Aging — Dr. Arathi Sethumadhavan, PhD, Head of User Research, AI, Ethics & Society, Microsoft Cloud+AI.

Dr. Arathi Sethumadhavan, Ph.D. is Head of User Research for AI, Ethics & Society, at Microsoft’s Cloud+AI organization, where she works at the intersection of user research, ethics, and product experience.

Continue reading “Dr. Arathi Sethumadhavan, PhD — Head of User Research, AI, Ethics & Society, Microsoft’s Cloud+AI” »

“Much to our happy surprise, the rheumatoid arthritis totally disappeared in animals that received a vaccine,” says Chakravarti. “Sometimes there is no better way than serendipity. We happened to hit a wrong result, but it turned out to be the best result. Those kinds of scientific discoveries are very important in this field.”

Researchers from the University of Toledo have discovered a prospective new treatment for rheumatoid arthritis. The vaccine-based treatment strategy proved successful in preliminary animal studies and the researchers are looking to conduct more clinical trials in the future.

The research hinges around a protein called 14−3−3 zeta. Ritu Chakravarti, lead author on the new study, has been studying 14−3−3 zeta for several years due to its suspected role in a number of autoimmune conditions.

Continue reading “Scientists stumble on rheumatoid arthritis vaccine with huge potential” »