The video owner has disabled playback on external websites.

This video is no longer available on YouTube.

This video cannot be played right now.

Watch on YouTube

Desbloquea herramientas de aprendizaje con IA

Regístrate para acceder a herramientas potentes que te ayudan a aprender más rápido con cada video.

Explicación de escena Cazador de frases Repaso con tarjetas Práctica de imitación Responder
Regístrate gratis
Inglés 7:20 Science & Tech

Organs Have Blood Types and It's a Problem

SciShow · 81,112 vistas · Añadido hace 2 meses

Subtítulos (135 segmentos)

00:00

Organ transplant waiting lists  are a race against the clock.

00:03

Patients on kidney transplant waitlists have

00:05

to hold out an average of more than three years.

00:08

On top of this, organ transplants  need the immune system’s

00:12

seal of approval to be accepted by the body,

00:15

and the immune system is extremely picky.

00:17

But for patients who need a kidney  ASAP, scientists might have found

00:21

a way to safely circumvent the  body’s overzealous security system.

00:25

And it’s by changing their blood type.

00:28

Yeah, kidneys have blood types.  Here’s how and why this might work.

00:34

[♪INTRO]

00:37

In 2019, 40% of end-stage kidney disease patients

00:40

died within three years of starting dialysis…

00:44

and only 11% could be added  to transplant waitlists.

00:47

Finding enough donor organs is complicated,

00:49

and supply and demand isn’t the only problem.

00:52

Doctors need to consider the possibility of

00:54

the immune system rejecting a transplant.

00:56

The immune system is like the body’s bouncers.

00:59

At its core is a type of cell called  a B cell, which generates antibodies.

01:03

These are highly specialized  proteins that can attach

01:06

to markers called antigens on  the surface of invading cells.

01:09

This helps the body distinguish  “non-self” from “self”, and take out,

01:13

say, a cold virus as soon as it  makes its way into your nose.

01:16

Once the antibodies grab onto an  invader, they can call in backup,

01:20

including other immune cells,  to take care of the intruder.

01:23

This system works across all  types of new biological material

Subtítulos completos disponibles en el reproductor

Practica con ejercicios

Genera ejercicios de vocabulario, gramática y comprensión de este video

Vocabulario y gramática Test de comprensión Examen IELTS Práctica de escritura
Regístrate para practicar
¡No hay comentarios todavía. Sé el primero en compartir tus ideas!

Regístrate para desbloquear todas las funciones

Sigue tu progreso, guarda vocabulario y practica con ejercicios

Aprende idiomas gratis