How HIV kills so many CD4 T cells | Infectious diseases | NCLEX-RN | Khan Academy

Подписаться 1,8 млн

Просмотров 233 тыс.

50% 1

Visit us (www.khanacademy.org/science/he...) for health and medicine content or (www.khanacademy.org/test-prep/...) for MCAT related content. These videos do not provide medical advice and are for informational purposes only. The videos are not intended to be a substitute for professional medical advice, diagnosis or treatment. Always seek the advice of a qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read or seen in any Khan Academy video. Created by Vishal Punwani.
Watch the next lesson: www.khanacademy.org/test-prep...
Missed the previous lesson? www.khanacademy.org/test-prep...
NCLEX-RN on Khan Academy: A collection of questions from content covered on the NCLEX-RN. These questions are available under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 United States License (available at creativecommons.org/licenses/b....
About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.
For free. For everyone. Forever. #YouCanLearnAnything
Subscribe to Khan Academy’s NCLEX-RN channel: / @khanacademynclex-rn7898
Subscribe to Khan Academy: ru-vid.com_...

Опубликовано:

25 июн 2015

Ссылка:

Скачать:

Готовим ссылку...

Добавить в:

Мой плейлист

Посмотреть позже

Комментарии : 180

@JillTheOddity 5 лет назад

This is the best explanation I've found regarding how HIV actually causes the loss of T cells. Thank you!

@ruzigold3606 3 года назад

HOW I GOT CURED FROM CANCER I was diagnosed of cancer and i have tried all I can to get cured but all to no avail,,until I saw a post in a health forum about a herbalist man who prepare hebal medications to cure all kind of diseases including cancer ,at first I doubted if it was real but decided to give it a try,when I contacted this Dr Oduduwa and he prepared a cancer herbal cure and sent it to me via UPS delivery company service, when I received this herbal medicine, he directed me on how to take the medicine ,after taking it the way he instructed me to ,I was totally cured of the deadly disease called cancer , all thanks to Dr Oduduwa you can WhatsApp him now +2349029468562 [ this great herbal doctor CAN ALSO CURE SICKNESS LIKE: HIV/AIDS DIABETES EPILEPSY HSV HPV HEPATITIS SICKLE AND ANAEMIA.. EBOLA IMMUNITY Call/WhatsApp +2349029468562

@raesavage1892 3 года назад

Have you tried watching the immunology wars video?

@scottseptne5239 Год назад

Why are you still living with HIV when *Dr Alued on RU-vid* have herbal remedy that cure HIV and other STD ? 🌹🌺💐

@jameswilliams3443 Год назад

This has been a challenging time, and I appreciate you so much Dr Alued, you have created a life that I thought was lost, thank you so much for curing my sister from genital HIV I am grateful

@carlahead2945 7 лет назад

I hope and pray that a cure for both AIDS and HIV can soon be found because there are so many people who are dying a horrible death. They suffer needlessly,you know? My heart goes out to people suffering with both HIV and AIDS.

@rivvermoune7770 4 года назад

there are no cure for viruses...what you just have to do is to let your body mass produce those cells again...by consuming at least 20grams of ascorbic acid per day.

@Matthew-yc6nx Год назад

@@rivvermoune7770Are you stupid?

@rivvermoune7770 Год назад

@@Matthew-yc6nx you are the stupid...viruses are part of nature..and our immune system cells are part of nature too..let your immune system cells defeat those viruses and boost your immune systems cells

@Matthew-yc6nx Год назад

@rivvermoune7770 Yes, viruses are part of nature. But telling people just to take ridiculously high doses of vitamin c to fight things like HIV is incredibly dangerous pseudo-scientific mal-advice.

@rivvermoune7770 Год назад

@Matthew it is up to you if you want to follow what I suggested. high-dose of ascorbic acid and enough zinc and chromium and magnesium are good

@peytonwilliams1975 3 года назад

I work in a Computational Chemistry drug design lab, and my group simulates ligands with particular HIV proteins that aid in infection. This video and the previous one have been hugely helpful in my understanding of the life cycle of this virus. Thank you for your accessible and informative content.

@thomashelen856 3 года назад

I’m completely cured from HIV virus 🦠 with the help of Dr.Auchi on RU-vid channel, I am finally free from HIV VIRUS..🙏🙏🙏

@danielioandima6020 3 года назад

Peyton Williams did you performed the HIV virus isolation in the blood stream /fresh drop blood from an infected person?

@thomashelen856 3 года назад

@@danielioandima6020 HIV virus have cure and the best way to cure it is Herba medicine

@danielioandima6020 3 года назад

@@thomashelen856 wtf did saw the isolated HIV virus? of what it was cured?

@thomashelen856 3 года назад

@@danielioandima6020 yes Dr.Auchi on RU-vid can help you cure your HIV virus 🦠

@markotomasevic8028 4 года назад

It would be really cool if you also wrote some links for research papers in the info! :)

@scottseptne5239 Год назад

❤ Why are you still living with HIV when *Dr Alued on RU-vid* have herbal remedy that cure HIV and other STD ? 🌹🌺💐

@jameswilliams3443 Год назад

This has been a challenging time, and I appreciate you so much Dr Alued, you have created a life that I thought was lost, thank you so much for curing my sister from genital HIV I am grateful

@rian.frealde 5 лет назад

Wow... thank you for this video... Great job dude.

@mamiyah2934 4 года назад

Simplicity is your game thanks for downloading information on t-cells

@EMunozRN 9 лет назад

Great explanation!!! Many thanks 😃

@jacobwhite9791 8 лет назад

This is so dope.

@missfluffybuns7759 7 лет назад

mannnn.. thank you so much for this video

@peaceseeker9927 3 года назад

Excellent insight. And the graphics were very well done.

@tantralin735 8 лет назад

it is really helpful~~~get beeter understand for HIV~~Tks a lots~~

@snafu98104 7 лет назад

thank you very well put together and easy to understand for a laymen as myself

@snafu98104 7 лет назад

Sullivan Richard I have been HIV+since 87 thought the reason maybe I was taking tegretol which helps siezure disorders and bi polar and it supresess the white blood count in 87 my white blood count was low therefore low RNA particles also I was given shots in the army and Navy I am not a hematologist and I should of died along time ago how is it medically possible that I am alive today I take anti vitals today I want to give researchers my blood to study I knew for me this was going to be treated as a chronic illness thank God for rubbers cause I never would get laid I read the cure in Mexico something about positive molecules dropping an positive charge on HIV RNA and killing it can you explain hey I worked on helicopters now I know troubleshooting ch47's just can't figure out why I'm still breathing please answer this video is the bomb 😇😇😇🐺🐺🐺🐺

@imadakrame4463 3 года назад

Thanks a lot !

@LordM7md77 8 лет назад

thank you

@valtus 4 года назад

You're so insanely good at explaining stuff. Just fascinating watching your video.

@jameswilliams3443 Год назад

This has been a challenging time, and I appreciate you so much Dr Alued, you have created a life that I thought was lost, thank you so much for curing my sister from genital HIV I am grateful

@senthilkumarpanneerselvam6657 7 лет назад

Awesome video

@1x1x1is1 5 лет назад

Thank you 🖖

@bomhayhay 7 лет назад

thanks

@meredithgrey1297 3 года назад

Thanks for existing 😭🦋❤️ loved this channel for the bottom of my hypothalamus ❣️

@jameswilliams3443 Год назад

This has been a challenging time, and I appreciate you so much Dr Alued, you have created a life that I thought was lost, thank you so much for curing my sister from genital HIV I am grateful

@connorwilloughby2222 7 лет назад

Brilliant

@piyushchaturvedi632 3 года назад

Thankyou ❤️🙏🏾

@rockoquels 4 года назад

#Mind Blown!!

@ClemensLode 3 года назад

Thank you for the video! Do you have examples against which type of diseases this chain reaction is/was evolutionary useful?

@scottseptne5239 Год назад

🎉🎉 Why are you still living with HIV when *Dr Alued on RU-vid* have herbal remedy that cure HIV and other STD ? 🌹🌺💐

@IshantGupta5 8 лет назад

thank you for making it so easy!

@md.shanto8917 7 лет назад

Whо Elsе Wants Тo Cure Тheir Yeаst Infеeeеctiоn, Regаin Тhеir Naturаl Innеr Bаlancе aаnd Aсhieve LАSTING Freеdоm Frоm Caааndidа Rеlatеd Sуmрtоms?Clicссk Hеre -->twitter.com/cb89668e78b13a87f/status/784262969735516160 How HIV kills sо manу CD4 Т сееееlls

@fraserwetende1729 Год назад

really educative

@jameswilliams3443 Год назад

This has been a challenging time, and I appreciate you so much Dr Alued, you have created a life that I thought was lost, thank you so much for curing my sister from genital HIV I am grateful

@odungaeunniey2258 Год назад

Very helpful. A big thank you

@jameswilliams3443 Год назад

This has been a challenging time, and I appreciate you so much Dr Alued, you have created a life that I thought was lost, thank you so much for curing my sister from genital HIV I am grateful

@reneerenata6858 6 лет назад

Ur voice is nice n soft🙄. Good explanation tho👍

@buddyrebel_Garcia 3 года назад

I know I want him to massage me.

@clo852able 3 года назад

Love these videos but staying awake is hard with the practically whispering voices 😂

@msfeezayousoff5290 4 года назад

I wonder, how does it affect the cd8 t cells? or are they not affected at all?

@Frottagecub 6 лет назад

As a Rh Negative blood type. Ebola and HIV doesn’t directly connect to blood types like A- . If they knew about Rh negative blood behavior - is it because the population is only 15% of possible elite controllers and it took 30 years to put two and two together finally? I have only intro to anatomy and physiology under my belt and can see the importance and possibilities. I am 41 and have lost loving, amazing human beings that could have been saved all this time if my blood and other Rh Negative blood types used for trials. I think there’s a huge underlining green to keeping things set back in this day and age.

@lanchanoinguyen2914 7 лет назад

and it would help the leukemia patient in the final stage.

@BrizAU 4 года назад

This may be a stupid question, but can NSAIDs or Corticosteroids help reduce cell death? Also, since HIV destroys CD4+ cells, can it be possible to somehow artificially stimulate cytokine production in the body to continue natural immune responses?

@pranavpieces 6 лет назад

Does pyroptosis damage other T cells when not in lymph node?? For example like in blood stream??

@glitzyx4x852 4 года назад

Pranav Venkatesh yes albeit not as often

@bernardnathaniel 3 года назад

can anyone explain what happen to the T cells that exposed to HIV but not being infected that then migrate to lymph nodes ? what will happen after that particular T cells enter the lymph nodes ?

@FeartheReaper54 8 лет назад

I might've missed it, but how do cells behave with other retroviruses? Is pyroptosis a response from the common cold?

@glitzyx4x852 4 года назад

FeartheReaper54 no the common cold viruses are harmless the immune system is trying to kick it out

@jameswilliams3443 Год назад

This has been a challenging time, and I appreciate you so much Dr Alued, you have created a life that I thought was lost, thank you so much for curing my sister from genital HIV I am grateful

@UfunuoSt Год назад

Dear James, please I need your help, how did she get out of that? Help me please, I am loose a life too.

@amazonfire8145 2 года назад

The ones that need to go into self destruct the most are the resovoir ones. Why don't they?

@andrewjichi3724 3 года назад

i did not understand why they go to the lymph node, can someone help please

@thomashelen856 3 года назад

I’m completely cured from HIV virus 🦠 with the help of Dr.okougo Herbalhome on RU-vid channel, I am finally free from HIV VIRUS..🙏🙏🙏

@KunalSingh-lz4jj 3 года назад

Hello i am exposed with hiv pos girl 9 month ago. She was my wife sonhad sex multiple time but when she got pregnent we gone for test she tested pos and my hiv 4th generation test come out to be negetive. Since then i am testing every month my hiv test reports are negetive but my cd 4 count is very low now its 234. What to do ?Tried all type of test from PCR to western blot. All shoes negetive but when i go for cd4 count it is decreasing . The starting test shows me cd4 990 and presently it is 234. And i guess symptoms like fatigue is always there with me . Please help.

@charted8015 2 года назад

The real question is even if pyroptosis does bot happen, do cd4 cells still get killed by hiv eventually? If so, the pyroptosis is not the real problem. The real problem is still how to eradicate the virus in the body.

@francescoranchi7415 4 года назад

Hello, very clear explanation but what I'm having trouble understanding is how does the not infected cell fail. U said that it isn't infected, but right after u said that protein ifi16 detects rna transcription and activates caspase 1 which then creates interleukin b1 etc... But when RNA transctiption starts, isn't the cell infected? or can the transcription take place without the cell being infected. So when does the cell become infected?

@msfeezayousoff5290 4 года назад

Hi, I understand your confusion. I think the uninfected cd4 cell death occur in the lymph nodes, when one of it's cd4 secretes IL b1 and undergoes pyroptosis, triggering chain reaction to the bystander cd4 cells. I think that's what he meant by uninfected cd4 t cells death.

@corydross3367 7 лет назад

so lymph nodes are useless to hiv. I might have it. I believe but am not sure that I was exposed to hiv. 24 hours later my lymph nodes are pulsing for another 24 hours. I'm just scared now.

@ahansen9583 6 лет назад

Komodo, Many types of infections can cause swollen lymphnodes, sometimes this is the result of an insignificant illness like a minor cold or allergy, and sometimes can be related to severe illness, this alone is not an indicator of HIV infection. Unlike risk groups of HIV infection in Africa that is purported to cause AIDS in men, women, and children equally (a reflection of government grants for HIV driven associations vying to substantiate receiving federal monies)..In the USA and Europe AIDS is biased, affecting and killing mainly men with substantial drug addictions, regardless of HIV seropositivity. Hemophiliacs are prone to developing AIDS related to the number of Factor 8 blood transfusions they endure, irrespective of wether or not they have an actual HIV infection. So, if you live in one of these countries, unless you meet the criteria above...it’s unlikely that you’ll ever develop AIDS, even if you were HIV positive and had no treatment. In addition, HIV is grown by labs in immortal T Cell lines without causing a single T Cell to die, HIV is not very toxic to T cells as indicated by the video...it infects very few T Cells and is not directly responsible for the majority of cell death. As long as any enviornmental toxic exposures are limited, the human body can replace lost T cells faster than HIV could potentially kill them, which is why HIV does not ever result in AIDS in healthy people. An online readable copy of a published book describing the symptoms, history, infection, risk groups, therapy, and co-founders of HIV/AIDS and the extent of the medical literature with medical citations and can be read for free here: www.whale.to/c/Inventing-the-AIDS-Virus%20(1).pdf

@elhombredeoro955 5 лет назад

Get a test buddy. Though HIV is a serious infection, it's not as nightmarish as people make it to be.

@joshuarandall6041 6 лет назад

Wow.

@parecheg 8 лет назад

The big bang is easier to understand

@dawindersandhu4302 4 года назад

Abhi tak koi medicne nhi bani cd 4 cell ko incres krne ki . Onley art hai kya

@Me-the-One-G 4 года назад

I ve read that sebhorreic dermatitis it s relatit whit hiv but i think that it coul be related to other desease, as like as angular cheilites, beside so many hiv negative tests after so long perioud. All hiv symtoms i think could be from another desease....similar maybe...a herpesvirus...somth

@sandrodream5418 3 года назад

yes but you have to make more analysis after a while

@Me-the-One-G 3 года назад

@@sandrodream5418 i retest hiv ag 1 ab 1 M Oand Hiv 2 ab...after 2 year and all negative..a wb test for Hiv 1 negative...but i have always all syntomps...i ve tested all other desease and negative....i have arthritys...dyarheea ..rashes etc....it ruin my life...from over 1 year ago i ve testet 3 cd 4 cd8 counting....the first has over limit cd8 and cd4 was 1170....than the second test get cd 8 in regular limits but cd 8 961and 2 days ago again cd 8 over limit at 1150 and cd 8 1250....cd 4 percent was 44 % , 46% and 44% again...pls give ame an advice....thanks

@Me-the-One-G 3 года назад

It can be some strain or group undetectable by 4 th gen tests?!....i ve made it 10 times in different clinics...

@Me-the-One-G 3 года назад

At the very first time 2 years ago....beside other symptoms i ve loss 7 kg weigh....

@sandrodream5418 3 года назад

@@Me-the-One-G if you wanna be 100% sure you have to make ELISA 4th generation test but I think you are OK, dont worry dude

@clydecash5659 Год назад

Antivaxxers say this is fake

@giselleshrestha6871 2 года назад

Thank you #Drkanayo Peterson on RU-vid for being the reason why am smiling today after so many failures, your 14 days herbal supplement for hiv is indeed an active one. Keep saving lives sir.