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  • welcome to another MedCram coronavirus update and we've got some news today

  • this is for the 12th of February 20 20 so the new name that the WH o is given

  • the virus is called Tsarskoe v2 and the disease that it causes is being known as

  • kovat 19 so that's the new nomenclature this is the name of the virus and this

  • is the name of the disease sort of like HIV and AIDS this is the virus this is

  • the disease and let's take a look at the update again just the word about these

  • numbers we believe these numbers are probably under reporting here we don't

  • know how much they're under reporting it's because only the most severe cases

  • in China are actually being tested if you look here of the total deaths and

  • total recovered that leaves another 40,000 people that are somewhere between

  • death and totally recovered so only time is going to be able to tell that if we

  • go to our friends over at world ohmmeter you'll see here a nice graph of where we

  • are in total cases we can see that it's kind of been leveling off a little bit

  • if we go to logarithmic you can see again a little bit more of a leveling

  • off unclear whether or not that is related to the number of test kits like

  • we were talking about or whether or not there's an actual leveling off it's kind

  • of interesting to see something that they've added that we talked to them

  • about is this cases outside of China and we'll get to that here so if we go down

  • to the bottom of this page now they start looking at total cases excluding

  • mainland China and in terms of those cases we are not seeing a leveling off

  • but more of still this epidemic so it looks as though things are still taking

  • off outside of China we are not seeing an asymptotic leveling off but rather

  • still going up when we look at cases per day we can see here that just in the

  • last couple of days we've had the most number of cases outside of China being

  • diagnosed I want to talk a little bit about the viral infection itself and

  • immunity for that we're going to draw out a little bit of a schematic here and

  • how this happens so the first thing that happens is of course you have this virus

  • particle which will draw as stars and these stars are outside

  • the body so this could be an airway this could be inside the GI tract etc etc so

  • this virus goes in and latches on to cells receptors and it causes these

  • cells to become infected with the virus and of course the virus takes over the

  • machinery of the cells and it causes it to make more of it and proteins and so

  • these cells will be coated with these proteins on the outside and of course

  • more particles are made these cells explode and they release more and more

  • of these virus particles so what is going on at this point is you've got

  • here on the blood side you've got things called

  • cells which are blood cells and one of those cells is called an antigen

  • presenting cell and so these cells start to go in and extravasated blood into the

  • tissue and they're able to recognize these cells that are abnormal because of

  • these abnormal proteins on the surface so these antigen presenting cells

  • envelop and destroy these virally infected cells so let's show a little

  • bit more of a close-up of how that happens so we have this antigen

  • presenting cell and inside the antigen presenting cell is the cell that is

  • infected with virus and it's got virus particles on it and so what's very

  • important what this antigen presenting cell does is it presents the antigen so

  • here is the antigen presented on the outside of that cell this is the most

  • important thing that the antigen presenting cell can do because what it

  • then does is it meets up with something called a th one response or a cd4

  • positive cell and this cell here is the mastermind behind your cellular mediated

  • immunity because this antigen here will latch on to this cd4 positive th one

  • cell and it will release il-12 which is a chemical that comes from the antigen

  • presenting cell that stimulates the cell to go and fight anything that looks like

  • this on it that antigen and so there's major responses that can occur number

  • one is that these th one cd4 cells will then stimulate another type of T cell

  • called the cd8 cells and those are killer cells and they go

  • out and all they do they will kill any cell that has those antigens on it

  • that's a very important thing and the way that that happens is it has little

  • proteins on the surface that will recognize this and cause docking to

  • occur so you want that connection to be very very tight another thing that this

  • th one can do is it can stimulate in the blood and tissue B cells and these B

  • cells will produce antibodies that look like this and these antibodies will bind

  • to these antigens and neutralize them so this really is immunity and this is the

  • key that allows you to survive a viral infection let me be very clear about

  • this this is probably one of the most important things that you can have going

  • for you when you have a viral infection this is what determines whether or not

  • you get admitted to the floor or whether or not you go to the intensive care unit

  • because if this reaction doesn't occur correctly and this immunity doesn't get

  • on top of the viruses quickly and limit them kind of quarantine in this then you

  • get wide viral infections all over the body and the amount of infection causes

  • more immunity which causes more inflammation and that's why people die

  • and so while the best way to prevent you from ending up having something bad

  • happen from corona virus is to avoid getting the virus in the first place if

  • you do get corona virus you want your immune system working perfectly and

  • wouldn't it be nice if there was something that we could do to enhance

  • this il-12 response to enhance the ability of this binding to occur to

  • enhance the ability of cd8 killer cells to bind their targets and to destroy to

  • enhance the ability of th one cd4 cells to create and stimulate actually these B

  • cells to make antibodies well there actually is something that we can do

  • that can enhance this number one it's not a drug number two it's absolutely

  • free there's no money involved number three you can do it anywhere and I'm

  • sure by this point you're probably saying what possibly could this be and

  • you pulling my leg on this this is probably one of the biggest things that

  • you can do to protect yourself from this viral infection causing a problem or any

  • other viral infection and there are absolutely no side effects to it and the

  • answer is sleep that's right sleep and enough of it greatly enhances

  • the ability of the antigen-presenting cell binding to the th1 and promoting

  • il-12 sleep also prevents the breaking up of this binding site with cd8 killer

  • cells with the antigen and we'll show you the research that's done this I have

  • peer reviewed papers in extensive research over the last 20 years that

  • sleep has a tremendous effect on your immune response against viruses I will

  • show you a paper here here we have on the left side a cytotoxic T cell this is

  • the cd8 cells this of the cells that kill and here we have an infected cell

  • with either CMV or EBV in the paper so what they showed was that there is a

  • g-protein receptor here on the cell and when it is activated by either

  • isoproterenol epinephrine or norepinephrine these are hormones

  • typically that are elevated in wakefulness that this wakefulness

  • hormones would activate this receptor in the killer T cells and it would cause a

  • inhibition of these beta to integrand proteins that allow binding to these

  • infected cells and destruction and so the opposite was true when the patients

  • were sleeping because these hormones were at very low levels that prevented

  • the inhibition of this GA s G protein which caused better binding and more

  • effective killing of these infected cells so do you know how much sleep in

  • adult in the United States should be getting according to the recommendations

  • and you can look this up at the CDC they should be getting between 7 & 9 hours a

  • night do you know how many people actually get at least 7 hours of sleep

  • per night about 60% that means there's about 30 to

  • 40% of us that are getting less than 7 hours a night these are the people that

  • are at the highest risk for the effects sleep deprivation and these are exactly

  • the same conditions that a lot of our health care workers in the United States

  • are under these are physicians these are nurses these are respiratory therapists

  • who are chronically sleep-deprived because of shifts because of working at

  • night and these are the ones that are gonna be on the front line dealing with

  • this virus think about a lot of the physicians that are working in China

  • right now and all of this is to the detriment of their immune system at the

  • beginning of the night when you go to sleep normally let's say around 10:00

  • p.m. the first thing that occurs is that you should be having more slow-wave

  • sleep at the beginning of the night and towards the end of the night more REM

  • sleep well they're starting to see that slow-wave sleep is integral in the

  • production of growth hormone and growth hormone has tremendous effects on

  • immunity and this is especially involved as the papers will show that I'll upload

  • to the description in the secretion of il-2 elv which is what we recall is the

  • thing that causes the antigen-presenting cell to stimulate the th1 response with

  • the cd4 cells so that's tied to slow-wave sleep this is the sleep right

  • here that occurs generally speaking between 10:00 p.m. and 1:00 a.m. in the

  • morning and this is the sleep that we cut off the most by going to bed late

  • and so we're losing out on growth hormone and our immunity stinks because

  • of it I want you to think what's happened to our ability to sleep over

  • the last number of decades so this is when we would normally go to sleep

  • around 9:00 to 10:00 p.m. and occasionally people would wake up in the

  • middle of the night and be awake for a little bit and then they would get up

  • again in the morning around 5:00 to 6:00 a.m. this is the time that we used to

  • have for sleeping and how much time is that so for about 9:00 to 5:00 would be

  • about eight hours of sleep according to the CDC and most of the research plenty

  • of time but what's happened because we've moved away from an agrarian

  • society to more of a urban society we've had to push this back because we have to

  • get up earlier because of traffic and what's happening is we're living out in

  • the suburbs we're living it further out and all the jobs are in the cities and

  • so there's traffic and so sleep has taken a big toll there and we're not

  • able to get as much sleep but on the other side there's also been a push and

  • why is that because of electricity and the other thing is electronics so think

  • about iPads smartphones in general 20 years ago television movies internet all

  • of those sorts of things and so the key here though is all of this is light

  • that's stimulating the eyes and when you stimulate the eyes with bright light it

  • pushes your circadian rhythm and delays it and so what you're losing out on is

  • sleep there and so what's happened is we've gone from society where we were

  • getting eight hours of sleep before and now getting five to six hours of sleep

  • that is going to translate into decreased immunity so the question is

  • how can we get this back because I believe this is one of the things that

  • we can do in the face of this coronavirus that we don't have to ration

  • we don't have to worry about do we have enough of this to go around for

  • everybody in an epidemic because this is something that's available to everybody

  • is getting plenty of sleep to help with immunity

  • in addition to me being a pulmonary and critical care specialist that takes care

  • of the unfortunate effects of the virus with people with a RDS and on the

  • ventilator I also happen to be a sleep specialist and I know that there's a lot

  • of people out there that have problems with sleeping some have insomnia some

  • have sleep apnea some have a number of these things and for each person it

  • might be an individual thing but there are some basic things that we can do to

  • improve our sleep and so for the next couple of updates we're going to talk a

  • lot about coronavirus or as it's called now SARS Cove 2 or cove at 19 but we're

  • also going to talk about practical things that we can all do as individuals

  • to help bolster our immunity and be prepared for anything that might come

  • thanks for joining us

welcome to another MedCram coronavirus update and we've got some news today

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    林宜悉 に公開 2021 年 01 月 14 日
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