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Ants change who they hang out with to prevent the spread of disease đ.
Category: biotech/medical
The world now has more than 36 million cases of the coronavirus.
According to figures compiled by Johns Hopkins Universityâs coronavirus tracking program, 36,166,574 people across the globe have been diagnosed with COVID-19, including more than 1 million deaths.
The United States leads in both categories with 7.5 million cases and nearly 212,000 deaths. India is a close second in the total number of cases with 6.8 million, while Brazil topped the 5 million mark Wednesday.
Circa 2018
Researchers inject tiny devices into the bloodstream to deliver drugs with precision.
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Scientist have sequenced the x chromosome.
The sequencing of the human genome was one of the greatest scientific feats of the past century, but itâs a little-known fact that itâs still a work in progress with considerable gaps. New research suggests we could be just months away from finally finishing the job.
Nearly two decades after the Human Genome Project released the first map of our DNA, there are still large sections that are a mystery to us. Scientists have been slowly filling in the gaps, but certain portions that feature repetitive sequences going on for millions of base pairs have long been seen as intractable.
Thatâs because most common gene sequencing technologies create short snippets of DNA that then have to be stitched together. When applied to these highly repetitive sections it becomes almost impossible to distinguish the pieces, so putting them back together in the right order is extremely difficult.
Imagine if your manager could know whether you actually paid attention in your last Zoom meeting. Or, imagine if you could prepare your next presentation using only your thoughts. These scenarios might soon become a reality thanks to the development of brain-computer interfaces (BCIs).
To put it in the simplest terms, think of a BCI as a bridge between your brain and an external device. As of today, we mostly rely on electroencephalography (EEG) â a collection of methods for monitoring the electrical activity of the brain â to do this. But, thatâs changing. By leveraging multiple sensors and complex algorithms, itâs now becoming possible to analyze brain signals and extract relevant brain patterns. Brain activity can then be recorded by a non-invasive device â no surgical intervention needed. In fact, the majority of existing and mainstream BCIs are non-invasive, such as wearable headbands and earbuds.
The development of BCI technology was initially focused on helping paralyzed people control assistive devices using their thoughts. But new use cases are being identified all the time. For example, BCIs can now be used as a neurofeedback training tool to improve cognitive performance. I expect to see a growing number of professionals leveraging BCI tools to improve their performance at work. For example, your BCI could detect that your attention level is too low compared with the importance of a given meeting or task and trigger an alert. It could also adapt the lighting of your office based on how stressed you are, or prevent you from using your company car if drowsiness is detected.
Anxious couples are approaching fertility doctors in the US with requests for a hotly debated new genetic test being called â23andMe, but on embryos.â
The baby-picking test is being offered by a New Jersey startup company, Genomic Prediction, whose plans we first reported on two years ago.
The company says it can use DNA measurements to predict which embryos from an IVF procedure are least likely to end up with any of 11 different common diseases. In the next few weeks itâs set to release case studies on its first clients.
Jared Isaacman made a small fortune training fighter pilots but his wealth soared this summer when he took his payments processing business public amid the pandemic.
Engineers create nanoparticles that deliver gene-editing tools to specific tissues and organs
Posted in bioengineering, biotech/medical, chemistry, genetics, nanotechnology, neuroscience | Leave a Comment on Engineers create nanoparticles that deliver gene-editing tools to specific tissues and organs
One of the most remarkable recent advances in biomedical research has been the development of highly targeted gene-editing methods such as CRISPR that can add, remove, or change a gene within a cell with great precision. The method is already being tested or used for the treatment of patients with sickle cell anemia and cancers such as multiple myeloma and liposarcoma, and today, its creators Emmanuelle Charpentier and Jennifer Doudna received the Nobel Prize in chemistry.
While gene editing is remarkably precise in finding and altering genes, there is still no way to target treatment to specific locations in the body. The treatments tested so far involve removing blood stem cells or immune system T cells from the body to modify them, and then infusing them back into a patient to repopulate the bloodstream or reconstitute an immune responseâan expensive and time-consuming process.
Building on the accomplishments of Charpentier and Doudna, Tufts researchers have for the first time devised a way to directly deliver gene-editing packages efficiently across the blood brain barrier and into specific regions of the brain, into immune system cells, or to specific tissues and organs in mouse models. These applications could open up an entirely new line of strategy in the treatment of neurological conditions, as well as cancer, infectious disease, and autoimmune diseases.