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Archive for the ‘biotech/medical’ category: Page 1665

Apr 4, 2020

The genetic architecture of the human cerebral cortex

Posted by in categories: biotech/medical, genetics, neuroscience

The human cerebral cortex is important for cognition, and it is of interest to see how genetic variants affect its structure. Grasby et al. combined genetic data with brain magnetic resonance imaging from more than 50,000 people to generate a genome-wide analysis of how human genetic variation influences human cortical surface area and thickness. From this analysis, they identified variants associated with cortical structure, some of which affect signaling and gene expression. They observed overlap between genetic loci affecting cortical structure, brain development, and neuropsychiatric disease, and the correlation between these phenotypes is of interest for further study.

Science, this issue p. eaay6690.

Apr 4, 2020

Trial drug can significantly block early stages of COVID-19 in engineered human tissues

Posted by in category: biotech/medical

An international team led by University of British Columbia researcher Dr. Josef Penninger has found a trial drug that effectively blocks the cellular door SARS-CoV-2 uses to infect its hosts.

The findings, published today in Cell, hold promise as a treatment capable of stopping early infection of the novel coronavirus that, as of April 2, has affected more than 981,000 people and claimed the lives of 50,000 people worldwide.

Apr 4, 2020

Anti-Parasitic Drug Kills Coronavirus Cell Cultures in 48 Hours

Posted by in category: biotech/medical

“As the virologist who was part of the team who were first to isolate and share SARS-COV2 outside of China in January 2020, I am excited about the prospect of Ivermectin being used as a potential drug against COVID-19,” Leon Caly, senior medical scientist at the Victorian Infectious Diseases Reference Laboratory (VIDRL) at the Doherty Institute, said.

A vaccine for COVID-19 is likely still at least a year out, despite research teams across the world fast tracking work on potential vaccines. But that doesn’t mean we’re doomed.

“In times when we’re having a global pandemic and there isn’t an approved treatment, if we had a compound that was already available around the world then that might help people sooner,” Wagstaff said in the statement. “Realistically it’s going to be a while before a vaccine is broadly available.”

Apr 4, 2020

FBI warns white supremacists encouraging members to spread coronavirus to law enforcement, Jews: report

Posted by in categories: biotech/medical, business, law enforcement

The Federal Bureau of Investigation’s New York office recently sent out an alert to local authorities warning of extremist groups it said are encouraging their members to spread the novel coronavirus to police and Jewish people, ABC News reported.

According to the news agency, the alert, which was reportedly issued on Thursday, said that “members of extremist groups are encouraging one another to spread the virus, if contracted, through bodily fluids and personal interactions.”

The alert reportedly warned that the racist groups were urging their members to go to places where Jewish people “may be congregated, to include markets, political offices, businesses and places of worship.”

Apr 4, 2020

Chinese city bans the eating of cats and dogs

Posted by in categories: biotech/medical, food

The ruling is a tougher version of China’s ban of wildlife meat, after it was linked to the virus.

Apr 4, 2020

How a Bouncy Ball Changed the Way I See the World

Posted by in categories: biotech/medical, robotics/AI, space

In the stillness and noise of the M.R.I., I picture what the magnet is doing to my brain. I imagine hydrogen protons aligning along and against the direction of its field. Bursts of radio waves challenge their orientation, generating signals that are rendered into images. Other than the sting of the contrast agent, the momentary changes in nuclear spin feel like nothing. “Twenty-five more minutes,” the radiologist says through the plastic headphones. Usually, I fall asleep.

I’ve had more than 50 scans since 2005, when I received a diagnosis of multiple sclerosis, and I now possess thousands of images of my brain and spine. Sometimes I open the files to count the spinal-cord lesions that are slowly but aggressively taking away my ability to walk. On days my right leg can clear the ground, it feels as if a corkscrew is twisting into my femur. I take halting steps, like a hapless robot, until it’s impossible to move forward. “Maybe in 10 years there will be a pill, or a treatment,” a doctor told me.

For now, even a sustained low fever could cause permanent disability, and medications that treat the disease have left me immunosuppressed, making fevers more likely. I quarantined before it was indicated, and what I miss most now, sheltering in place, are walks through my neighborhood park in Los Angeles with my dog, who gleefully chases the latest bouncy ball I’m hurtling against the concrete. Her current favorite is the Waboba Moon Ball, which comes in highlighter fluorescent yellow and Smurf blue, among other colors. Technically Moon Balls are spherical polyhedrons. They sport radically dimpled surfaces, as if Buckminster Fuller had storyboarded an early pitch for “Space Jam.” Moon Balls are goofy, but they bounce 100 feet.

Apr 4, 2020

Tests That Can Tell Who Has Had the Coronavirus Are Here, With Some Limitations

Posted by in categories: biotech/medical, government

This week, the U.S. government approved the first blood test in the country that will look for the antibodies produced by the body to fight the novel coronavirus. Such a test can reveal whether someone is actively infected by the virus, as well as whether they were previously infected but recovered. While these tests are very much needed to better understand the scale of the outbreak, they have a few major limitations.

On Thursday, the Food and Drug Administration issued an Emergency Use Authorization to a covid-19 antibody test developed by the company Cellex. The test looks for two types of antibodies, IgM and IgG, created by the body’s immune system in response to the new coronavirus, known as SARS-CoV-2. The test, which requires blood drawn from a vein, can return results within 15 to 20 minutes, though the testing itself has to be done in a certified laboratory, not at a doctor’s office, unlike some other rapid covid-19 tests.

Apr 4, 2020

In Italy, Going Back to Work May Depend on Having the Right Antibodies

Posted by in category: biotech/medical

Weighing an idea that might once have been relegated to science fiction, Italy once again finds itself in the unfortunate vanguard of Western democracies grappling with the coronavirus.

Apr 4, 2020

Sleep apnea linked with Alzheimer’s–like changes to the brain

Posted by in categories: biotech/medical, neuroscience

A recent study published in JAMA Neurology identifies certain neurological hallmarks of Alzheimer’s disease in the brains of older adults with sleep apnea.

Apr 4, 2020

Experimental Drug Blocks Growth of SARS-CoV-2 Coronavirus in Cell Cultures and Organoids

Posted by in category: biotech/medical

A trial drug called APN01 or human recombinant soluble ACE2 (hrsACE2) can significantly block early stages of SARS-CoV-2 infections, according to a paper published in the journal Cell.