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  • welcome to another MedCram co19 update this is for Monday the 9th of March gear

  • in Orange mainland China's cases are leveling off the total recovered is

  • increasing mainly because of the numbers generated from mainland China but at

  • other locations we're starting to see things pick up as well if we look at the

  • country specific statistics we can see of course China at the top but

  • interestingly if we look at South Korea and Italy these are two very comparable

  • countries here in terms of total cases and if you look at their populations

  • total cases per 1 million they're also similar 145 versus 122 we know however

  • that South Korea has done aggressive testing close to 200,000 people have

  • been tested in that country

  • and so I believe what you're seeing here with close to 200,000 people being

  • tested this number is probably pretty close to people who are actually

  • infected in that country whereas in Italy this may represent more of a tip

  • of the iceberg and as a result of that we can see that potentially explained

  • here is the total deaths if the virus is having the same effect in both countries

  • and at the healthcare delivery systems in both countries are similar you would

  • expect the total deaths here to be similar and serious and critical that's

  • another category where there is a serious difference the big news in Italy

  • is that they are taking what they call exceptional measures to contain about 16

  • million Italians living in 14 provinces in the north of the country as well as

  • restrictive measures covering the whole of the country you can see here in those

  • areas we have travel being restricted gatherings all schools and universities

  • are closed all museums and places of Culture will be closed all religious

  • festival and events are suspended you can see cinemas pubs theaters etc etc

  • any places where people congregates are being severely restricted or closed in

  • the United States with more testing we're going to see an explosion here I

  • believe of people that are gonna be positive and you can see all of those

  • here listed at world ometer okay we've received a lot of questions about Cova

  • 19 treatment possibilities that may be on the horizon medications like REM des

  • aver that we discussed in our video update 11 that have shown promising

  • results in a test tube and are in clinical trials with humans as we speak

  • here's a paper that was published on February 24th that gives more

  • information about how REM de severe actually works we will put a link in the

  • description below this medication had gone through phase 1 trials already had

  • gone through phase 2 trials where the looked at safety again except in a

  • larger population but when they did the phase three trials on Ebola it did not

  • work so even though you can get something that works in vitro it doesn't

  • always mean it's gonna work in vivo you have to go through those phase three

  • trials before the FDA will give it a label well the unfortunate thing about

  • this medication is it passed phase one and phase two so we know it's a

  • medication that's relatively safe and it's sitting on the shelf looking for a

  • job to do and now enter this kovat nineteen situation here at the beginning

  • of 2020 and now it's being put to work directly into a phase three trial so the

  • nice thing here is that it didn't have to go through phase one and two because

  • it already did that so before we continue to talk about REM de severe we

  • need to follow up on what is traded in our last video update 32 about how the

  • Czar's cove two virus that causes cove in nineteen actually hijacks or cells

  • and how something called RNA dependent RNA polymerase or r d RP for short is

  • essential for the replication of RNA viruses please go back and watch this

  • video so you have context so let's zoom in and look closely at the function of

  • our d RP because that's going to tell you why REM the severe may or may not

  • work so here's our RNA dependent RNA polymerase and here's our viral RNA and

  • you can see the nucleotides here a u g c g c-- you what RNA dependent RNA

  • polymerase is whenever they see an a on the first strand it will create a strand

  • that has a you whenever they see a u it will put in an a whenever they see a g

  • it will put in a c wherever it sees a see it will put in a g and so forth and

  • so forth and the way that this works is it always creates RNA from the five

  • prime end to the three prime end which means that it's reading the templates

  • RNA from the three prime end to the five prime end so here it's coming up to the

  • next nucleotide and there's these things floating around and they have three

  • phosphates on them all of them have three phosphates and so the way that

  • this is abbreviated as there floating around in the cytosol for

  • instance if this is an a this would be known as a adenosine tri phosphate or

  • ATP this one here would be known as UTP and what happens is as these nucleotides

  • which are just floating around in solution there's a spot that opens up

  • and because this is AG one of them that has a C on it and three phosphates will

  • nicely bind in here and it will form C and it will continue to go on I'm just

  • going to erase some of this here so that we can see it a little bit more clearly

  • the thing that's really interesting about this is when it comes to the time

  • when there is a you that opens up ATP should normally go in there REM de

  • severe as will abbreviate our DV with a three phosphate on the end of it

  • actually binds into this you state better than the a and so it will go in

  • there instead and here's the nice thing about our DV in the situation as soon as

  • our DV binds as this RNA molecule is being copied about three or four

  • nucleotides down the line it causes the RNA dependent RNA polymerase to stop it

  • arrests RNA dependent RNA polymerase and if you scroll down to the bottom you can

  • see that REM des aver triphosphate is very similar to adenosine triphosphate

  • look at the structure it's going to fit very well inside of that spot as the RNA

  • dependent RNA polymerase is going by but if you have a concentration of our DV T

  • P in the cytosol it will suck one of those in and arrest elongation if you

  • arrest all elongation of the RNA you can't make viruses and you stop the

  • infection in its tracks so you can see why this medication has a lot of promise

  • but again we have to do the randomized placebo-controlled trials and those are

  • underway as we speak I want to give a quick shout-out to everyone here at Meg

  • cram who is behind each and every one of these videos it takes a team to make it

  • happen includes Haley Alicia our video editor

  • David and our producer and co-founder Carl Allred you can help support us by

  • visiting our website make cram comm subscribing to this YouTube channel and

  • most importantly sharing these videos with friends and family

  • we'll be back tomorrow for another update thanks for joining us

welcome to another MedCram co19 update this is for Monday the 9th of March gear

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B1 中級 新型コロナウイルス 新型肺炎 COVID-19

コロナウイルス流行の最新情報 33.COVID-19薬物治療試験、世界的な試験は依然として限定的 (Coronavirus Epidemic Update 33: COVID-19 Medication Treatment Trials, Global Testing Remains Limited)

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    林宜悉 に公開 2021 年 01 月 14 日
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