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How Scientists Are Working 24/7 Looking For Old Drugs That Might Treat COVID-19 – ScienceAlert

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Why don’t we have drugs to treat COVID-19 and how long will it take to develop them? SARS-CoV-2 – the coronavirus that causes the disease COVID-19 – is completely new and attacks cells in a novel way. Every virus is different and so are the drugs used to treat them.

That’s why there wasn’t a drug ready to tackle the new coronavirus that only emerged a few months ago.

As a systems biologist who studies how cells are affected by viruses during infections, I’m especially interested in the second question. Finding points of vulnerability and developing a drug to treat a disease typically takes years.

But the new coronavirus isn’t giving the world that kind of time. With most of the world on lockdown and the looming threat of millions of deaths, researchers need to find an effective drug much faster.

This situation has presented my colleagues and me with the challenge and opportunity of a lifetime: to help solve this huge public health and economic crisis posed by the global pandemic of SARS-CoV-2.

Facing this crisis, we assembled a team here at the Quantitative Biosciences Institute (QBI) at the University of California, San Francisco, to discover how the virus attacks cells.

But instead of trying to create a new drug based on this information, we are first looking to see if there are any drugs available today that can disrupt these pathways and fight the coronavirus.

The team of 22 labs, that we named the QCRG, is working at breakneck speed – literally around the clock and in shifts – seven days a week. I imagine this is what it felt like to be in wartime efforts like the Enigma code-breaking group during World War II, and our team is similarly hoping to disarm our enemy by understanding its inner workings.

A stealthy opponent

Compared with human cells, viruses are small and can’t reproduce on their own. The coronavirus has about 30 proteins, whereas a human cell has more than 20,000.

To get around this limited set of tools, the virus cleverly turns the human body against itself. The pathways into a human cell are normally locked to outside invaders, but the coronavirus uses its own proteins like keys to open these “locks” and enter a person’s cells.

Once inside, the virus binds to proteins the cell normally uses for its own functions, essentially hijacking the cell and turning it into a coronavirus factory. As the resources and mechanics of infected cells get retooled to produce thousands and thousands of viruses, the cells start dying.

Lung cells are particularly vulnerable to this because they express high amounts of the “lock” protein SARS-CoV-2 uses for entry. A large number of a person’s lung cells dying causes the respiratory symptoms associated with COVID-19.

There are two ways to fight back. First, drugs could attack the virus’s own proteins, preventing them from doing jobs like entering the cell or copying their genetic material once they are inside. This is how remdesivir – a drug currently in clinical trials for COVID-19 – works.

A problem with this approach is that viruses mutate and change over time. In the future, the coronavirus could evolve in ways that render a drug like remdesivir useless. This arms race between drugs and viruses is why you need a new flu shot every year.

Alternatively, a drug can work by blocking a viral protein from interacting with a human protein it needs. This approach – essentially protecting the host machinery – has a big advantage over disabling the virus itself, because the human cell doesn’t change as fast.

Once you find a good drug, it should keep working. This is the approach that our team is taking. And it may also work against other emergent viruses.

Learning the enemy’s plans

The first thing our group needed to do was identify every part of the cellular factory that the coronavirus relies on to reproduce. We needed to find out what proteins the virus was hijacking.

To do this, a team in my lab went on a molecular fishing expedition inside human cells. Instead of a worm on a hook, they used viral proteins with tiny chemical tags attached to them – termed a “bait.”

We put these baits into lab-grown human cells and then pulled them out to see what we caught. Anything that stuck was a human protein that the virus hijacks during infection.

By March 2, we had a partial list of the human proteins that the coronavirus needs to thrive. These were the first clues we could use. A team member sent a message to our group, “First iteration, just 3 baits … next 5 baits coming.” The fight was on.

Counterattack

Once we had this list of molecular targets the virus needs to survive, members of the team raced to identify known compounds that might bind to these targets and prevent the virus from using them to replicate.

If a compound can prevent the virus from copying itself in a person’s body, the infection stops. But you can’t simply interfere with cellular processes at will without potentially causing harm to the body.

Our team needed to be sure the compounds we identified would be safe and nontoxic for people.

The traditional way to do this would involve years of pre-clinical studies and clinical trials costing millions of dollars. But there is a fast and basically free way around this: looking to the 20,000 FDA-approved drugs that have already been safety-tested. Maybe there is a drug in this large list that can fight the coronavirus.

Our chemists used a massive database to match the approved drugs and proteins they interact with to the proteins on our list. They found 10 candidate drugs last week.

For example, one of the hits was a cancer drug called JQ1. While we cannot predict how this drug might affect the virus, it has a good chance of doing something. Through testing, we will know if that something helps patients.

Facing the threat of global border shutdowns, we immediately shipped boxes of these 10 drugs to three of the few labs in the world working with live coronavirus samples: two at the Pasteur Institute in Paris and Mount Sinai in New York.

By March 13, the drugs were being tested in cells to see if they prevent the virus from reproducing.

Dispatches from the battlefield

Our team will soon learn from our collaborators at Mt. Sinai and the Pasteur Institute whether any of these first 10 drugs work against SARS-CoV-2 infections.

Meanwhile, the team has continued fishing with viral baits, finding hundreds of additional human proteins that the coronavirus co-opts. We will be publishing the results in the online repository BioRxiv soon.

The good news is that so far, our team has found 50 existing drugs that bind the human proteins we’ve identified. This large number makes me hopeful that we’ll be able to find a drug to treat COVID-19.

If we find an approved drug that even slows down the virus’s progression, doctors should be able to start getting it to patients quickly and save lives.

Nevan Krogan, Professor and Director of Quantitative Biosciences Institute, University of California, San Francisco.

This article is republished from The Conversation under a Creative Commons license. Read the original article.

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What’s the greatest holiday gift: lips, hair, skin? Give the gift of great skin this holiday season

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Give the gift of great skin this holiday season

Skinstitut Holiday Gift Kits take the stress out of gifting

Toronto, October 31, 2024 – Beauty gifts are at the top of holiday wish lists this year, and Laser Clinics Canada, a leader in advanced beauty treatments and skincare, is taking the pressure out of seasonal shopping. Today, Laser Clincs Canada announces the arrival of its 2024 Holiday Gift Kits, courtesy of Skinstitut, the exclusive skincare line of Laser Clinics Group.

In time for the busy shopping season, the limited-edition Holiday Gifts Kits are available in Laser Clinics locations in the GTA and Ottawa. Clinics are conveniently located in popular shopping centers, including Hillcrest Mall, Square One, CF Sherway Gardens, Scarborough Town Centre, Rideau Centre, Union Station and CF Markville. These limited-edition Kits are available on a first come, first served basis.

“These kits combine our best-selling products, bundled to address the most relevant skin concerns we’re seeing among our clients,” says Christina Ho, Senior Brand & LAM Manager at Laser Clinics Canada. “With several price points available, the kits offer excellent value and suit a variety of gift-giving needs, from those new to cosmeceuticals to those looking to level up their skincare routine. What’s more, these kits are priced with a savings of up to 33 per cent so gift givers can save during the holiday season.

There are two kits to select from, each designed to address key skin concerns and each with a unique theme — Brightening Basics and Hydration Heroes.

Brightening Basics is a mix of everyday essentials for glowing skin for all skin types. The bundle comes in a sleek pink, reusable case and includes three full-sized products: 200ml gentle cleanser, 50ml Moisture Defence (normal skin) and 30ml1% Hyaluronic Complex Serum. The Brightening Basics kit is available at $129, a saving of 33 per cent.

Hydration Heroes is a mix of hydration essentials and active heroes that cater to a wide variety of clients. A perfect stocking stuffer, this bundle includes four deluxe products: Moisture 15 15 ml Defence for normal skin, 10 ml 1% Hyaluronic Complex Serum, 10 ml Retinol Serum and 50 ml Expert Squalane Cleansing Oil. The kit retails at $59.

In addition to the 2024 Holiday Gifts Kits, gift givers can easily add a Laser Clinic Canada gift card to the mix. Offering flexibility, recipients can choose from a wide range of treatments offered by Laser Clinics Canada, or they can expand their collection of exclusive Skinstitut products.

 

Brightening Basics 2024 Holiday Gift Kit by Skinstitut, available exclusively at Laser Clincs Canada clinics and online at skinstitut.ca.

Hydration Heroes 2024 Holiday Gift Kit by Skinstitut – available exclusively at Laser Clincs Canada clinics and online at skinstitut.ca.

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Here is how to prepare your online accounts for when you die

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LONDON (AP) — Most people have accumulated a pile of data — selfies, emails, videos and more — on their social media and digital accounts over their lifetimes. What happens to it when we die?

It’s wise to draft a will spelling out who inherits your physical assets after you’re gone, but don’t forget to take care of your digital estate too. Friends and family might treasure files and posts you’ve left behind, but they could get lost in digital purgatory after you pass away unless you take some simple steps.

Here’s how you can prepare your digital life for your survivors:

Apple

The iPhone maker lets you nominate a “ legacy contact ” who can access your Apple account’s data after you die. The company says it’s a secure way to give trusted people access to photos, files and messages. To set it up you’ll need an Apple device with a fairly recent operating system — iPhones and iPads need iOS or iPadOS 15.2 and MacBooks needs macOS Monterey 12.1.

For iPhones, go to settings, tap Sign-in & Security and then Legacy Contact. You can name one or more people, and they don’t need an Apple ID or device.

You’ll have to share an access key with your contact. It can be a digital version sent electronically, or you can print a copy or save it as a screenshot or PDF.

Take note that there are some types of files you won’t be able to pass on — including digital rights-protected music, movies and passwords stored in Apple’s password manager. Legacy contacts can only access a deceased user’s account for three years before Apple deletes the account.

Google

Google takes a different approach with its Inactive Account Manager, which allows you to share your data with someone if it notices that you’ve stopped using your account.

When setting it up, you need to decide how long Google should wait — from three to 18 months — before considering your account inactive. Once that time is up, Google can notify up to 10 people.

You can write a message informing them you’ve stopped using the account, and, optionally, include a link to download your data. You can choose what types of data they can access — including emails, photos, calendar entries and YouTube videos.

There’s also an option to automatically delete your account after three months of inactivity, so your contacts will have to download any data before that deadline.

Facebook and Instagram

Some social media platforms can preserve accounts for people who have died so that friends and family can honor their memories.

When users of Facebook or Instagram die, parent company Meta says it can memorialize the account if it gets a “valid request” from a friend or family member. Requests can be submitted through an online form.

The social media company strongly recommends Facebook users add a legacy contact to look after their memorial accounts. Legacy contacts can do things like respond to new friend requests and update pinned posts, but they can’t read private messages or remove or alter previous posts. You can only choose one person, who also has to have a Facebook account.

You can also ask Facebook or Instagram to delete a deceased user’s account if you’re a close family member or an executor. You’ll need to send in documents like a death certificate.

TikTok

The video-sharing platform says that if a user has died, people can submit a request to memorialize the account through the settings menu. Go to the Report a Problem section, then Account and profile, then Manage account, where you can report a deceased user.

Once an account has been memorialized, it will be labeled “Remembering.” No one will be able to log into the account, which prevents anyone from editing the profile or using the account to post new content or send messages.

X

It’s not possible to nominate a legacy contact on Elon Musk’s social media site. But family members or an authorized person can submit a request to deactivate a deceased user’s account.

Passwords

Besides the major online services, you’ll probably have dozens if not hundreds of other digital accounts that your survivors might need to access. You could just write all your login credentials down in a notebook and put it somewhere safe. But making a physical copy presents its own vulnerabilities. What if you lose track of it? What if someone finds it?

Instead, consider a password manager that has an emergency access feature. Password managers are digital vaults that you can use to store all your credentials. Some, like Keeper,Bitwarden and NordPass, allow users to nominate one or more trusted contacts who can access their keys in case of an emergency such as a death.

But there are a few catches: Those contacts also need to use the same password manager and you might have to pay for the service.

___

Is there a tech challenge you need help figuring out? Write to us at onetechtip@ap.org with your questions.

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Pediatric group says doctors should regularly screen kids for reading difficulties

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The Canadian Paediatric Society says doctors should regularly screen children for reading difficulties and dyslexia, calling low literacy a “serious public health concern” that can increase the risk of other problems including anxiety, low self-esteem and behavioural issues, with lifelong consequences.

New guidance issued Wednesday says family doctors, nurses, pediatricians and other medical professionals who care for school-aged kids are in a unique position to help struggling readers access educational and specialty supports, noting that identifying problems early couldhelp kids sooner — when it’s more effective — as well as reveal other possible learning or developmental issues.

The 10 recommendations include regular screening for kids aged four to seven, especially if they belong to groups at higher risk of low literacy, including newcomers to Canada, racialized Canadians and Indigenous Peoples. The society says this can be done in a two-to-three-minute office-based assessment.

Other tips encourage doctors to look for conditions often seen among poor readers such as attention-deficit hyperactivity disorder; to advocate for early literacy training for pediatric and family medicine residents; to liaise with schools on behalf of families seeking help; and to push provincial and territorial education ministries to integrate evidence-based phonics instruction into curriculums, starting in kindergarten.

Dr. Scott McLeod, one of the authors and chair of the society’s mental health and developmental disabilities committee, said a key goal is to catch kids who may be falling through the cracks and to better connect families to resources, including quicker targeted help from schools.

“Collaboration in this area is so key because we need to move away from the silos of: everything educational must exist within the educational portfolio,” McLeod said in an interview from Calgary, where he is a developmental pediatrician at Alberta Children’s Hospital.

“Reading, yes, it’s education, but it’s also health because we know that literacy impacts health. So I think that a statement like this opens the window to say: Yes, parents can come to their health-care provider to get advice, get recommendations, hopefully start a collaboration with school teachers.”

McLeod noted that pediatricians already look for signs of low literacy in young children by way of a commonly used tool known as the Rourke Baby Record, which offers a checklist of key topics, such as nutrition and developmental benchmarks, to cover in a well-child appointment.

But he said questions about reading could be “a standing item” in checkups and he hoped the society’s statement to medical professionals who care for children “enhances their confidence in being a strong advocate for the child” while spurring partnerships with others involved in a child’s life such as teachers and psychologists.

The guidance said pediatricians also play a key role in detecting and monitoring conditions that often coexist with difficulty reading such as attention-deficit hyperactivity disorder, but McLeod noted that getting such specific diagnoses typically involves a referral to a specialist, during which time a child continues to struggle.

He also acknowledged that some schools can be slow to act without a specific diagnosis from a specialist, and even then a child may end up on a wait list for school interventions.

“Evidence-based reading instruction shouldn’t have to wait for some of that access to specialized assessments to occur,” he said.

“My hope is that (by) having an existing statement or document written by the Canadian Paediatric Society … we’re able to skip a few steps or have some of the early interventions present,” he said.

McLeod added that obtaining specific assessments from medical specialists is “definitely beneficial and advantageous” to know where a child is at, “but having that sort of clear, thorough assessment shouldn’t be a barrier to intervention starting.”

McLeod said the society was partly spurred to act by 2022’s “Right to Read Inquiry Report” from the Ontario Human Rights Commission, which made 157 recommendations to address inequities related to reading instruction in that province.

He called the new guidelines “a big reminder” to pediatric providers, family doctors, school teachers and psychologists of the importance of literacy.

“Early identification of reading difficulty can truly change the trajectory of a child’s life.”

This report by The Canadian Press was first published Oct. 23, 2024.

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