Alzheimer’s Is Not Normal Aging — And We Can Cure It | Samuel Cohen | TED Talks

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2015-10-16 ・ TED


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Alzheimer’s Is Not Normal Aging — And We Can Cure It | Samuel Cohen | TED Talks

1,117,009 views ・ 2015-10-16

TED


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Translator: Nika Kotnik Reviewer: Klavdija Černilogar Dwyer
00:12
In the year 1901,
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Leta 1901
00:14
a woman called Auguste was taken to a medical asylum in Frankfurt.
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so žensko po imenu Auguste odpeljali v v bolnišnico v Frankfurtu.
00:18
Auguste was delusional
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Auguste je imela blodnje
00:20
and couldn't remember even the most basic details of her life.
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in se ni spominjala osnovnih podrobnosti o svojem življenju.
00:24
Her doctor was called Alois.
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Njen zdravnik se je imenoval Alois.
00:27
Alois didn't know how to help Auguste,
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Alois ni vedel, kako naj pomaga Auguste,
00:30
but he watched over her until, sadly, she passed away in 1906.
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a jo je opazoval, dokler ni leta 1906 na žalost preminila.
00:34
After she died, Alois performed an autopsy
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Po njeni smrti je Alois opravil obdukcijo
00:37
and found strange plaques and tangles in Auguste's brain --
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in našel čudne plake in vozle v njenih možganih -
00:40
the likes of which he'd never seen before.
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takih ni še nikoli videl.
00:42
Now here's the even more striking thing.
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Še bolj neverjetno pa je to:
00:46
If Auguste had instead been alive today,
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če bi bila Auguste živa danes,
00:49
we could offer her no more help than Alois was able to 114 years ago.
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ji ne bi mogli pomagati nič bolj, kot ji je Alois pred 114 leti.
00:56
Alois was Dr. Alois Alzheimer.
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Alois je bil dr. Alois Alzheimer.
01:00
And Auguste Deter
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In Auguste Deter
01:02
was the first patient to be diagnosed with what we now call Alzheimer's disease.
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je bila prva bolnica z diagnozo, ki ji danes pravimo Alzheimerjeva bolezen.
01:07
Since 1901, medicine has advanced greatly.
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Od leta 1901 je medicina ogromno napredovala.
01:11
We've discovered antibiotics and vaccines to protect us from infections,
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Odkrili smo antibiotike in cepiva, ki nas ščitijo pred infekcijami,
01:15
many treatments for cancer, antiretrovirals for HIV,
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mnogo zdravil za raka, antiretrovirusna zdravila za HIV,
01:19
statins for heart disease and much more.
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statine za bolezni srca in veliko več.
01:22
But we've made essentially no progress at all in treating Alzheimer's disease.
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A nismo dosegli skoraj nobenega napredka pri zdravljenju Alzheimerjeve bolezni.
01:30
I'm part of a team of scientists
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Sem del skupine znanstvenikov,
01:32
who has been working to find a cure for Alzheimer's for over a decade.
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ki že več kot desetletje išče zdravilo za Alzheimerjevo bolezen.
01:35
So I think about this all the time.
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Zato o tem razmišljam ves čas.
01:38
Alzheimer's now affects 40 million people worldwide.
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Alzheimerjevo bolezen ima 40 milijonov ljudi po svetu.
01:42
But by 2050, it will affect 150 million people --
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Leta 2050 bo takih 150 milijonov ljudi -
01:48
which, by the way, will include many of you.
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kar bo, mimogrede, vključevalo mnoge izmed vas.
01:53
If you're hoping to live to be 85 or older,
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Če upate, da boste živeli do 85. leta ali dlje,
01:57
your chance of getting Alzheimer's will be almost one in two.
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je vaša možnost za Alzheimerjevo bolezen 50-odstotna.
02:03
In other words, odds are you'll spend your golden years
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Ali drugače rečeno, možno je, da boste v jeseni življenja
02:06
either suffering from Alzheimer's
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trpeli za Alzheimerjem
02:09
or helping to look after a friend or loved one with Alzheimer's.
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ali pa skrbeli za bližnjega z Alzheimerjem.
02:14
Already in the United States alone,
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Samo v Združenih državah
02:16
Alzheimer's care costs 200 billion dollars every year.
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stane oskrba za bolnike z Alzheimerjem 200 milijard dolarjev letno.
02:21
One out of every five Medicare dollars get spent on Alzheimer's.
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Vsak peti dolar iz programa Medicare gre za Alzheimerjevo bolezen.
02:26
It is today the most expensive disease,
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Je najdražja bolezen našega časa
02:29
and costs are projected to increase fivefold by 2050,
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in stroški naj bi se do leta 2050 povečali za petkrat,
02:33
as the baby boomer generation ages.
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saj se generacija "baby boom" stara.
02:36
It may surprise you that, put simply,
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Morda vas bo presenetilo, a preprosto rečeno
02:39
Alzheimer's is one of the biggest medical and social challenges of our generation.
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je Alzheimer eden največjih medicinskih in družbenih izzivov naše generacije.
02:44
But we've done relatively little to address it.
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A glede tega smo naredili zelo malo.
02:47
Today, of the top 10 causes of death worldwide,
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Med prvimi desetimi vzroki smrti po svetu
02:51
Alzheimer's is the only one we cannot prevent, cure or even slow down.
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je Alzheimer edina bolezen, ki se je ne da preprečiti, pozdraviti, niti upočasniti.
02:59
We understand less about the science of Alzheimer's than other diseases
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Manj razumemo o mehanizmih Alzheimerjeve bolezni kot o drugih boleznih,
03:03
because we've invested less time and money into researching it.
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ker smo v raziskovanje vložili manj časa in denarja.
03:07
The US government spends 10 times more every year
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Vlada ZDA vsako leto nameni desetkrat več
03:11
on cancer research than on Alzheimer's
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za raziskave raka kot za Alzheimerja,
03:14
despite the fact that Alzheimer's costs us more
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kljub temu da nas Alzheimer stane več
03:18
and causes a similar number of deaths each year as cancer.
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in vsako leto povzroči podobno število smrti kot rak.
03:23
The lack of resources stems from a more fundamental cause:
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Pomanjkanje virov izvira iz bolj temeljnega vzroka:
03:27
a lack of awareness.
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pomanjkanje ozaveščenosti.
03:30
Because here's what few people know but everyone should:
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Ker malo ljudi to ve, a bi morali vsi:
03:35
Alzheimer's is a disease, and we can cure it.
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Alzheimer je bolezen in lahko jo pozdravimo.
03:40
For most of the past 114 years,
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Zadnjih 114 let
03:42
everyone, including scientists, mistakenly confused Alzheimer's with aging.
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so vsi, vključno z znanstveniki, napačno zamenjali Alzheimerja za staranje.
03:48
We thought that becoming senile
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Mislili smo, da je senilnost
03:49
was a normal and inevitable part of getting old.
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običajen in neizogiben del staranja.
03:53
But we only have to look at a picture
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A samo pogledati moramo sliko
03:55
of a healthy aged brain compared to the brain of an Alzheimer's patient
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zdravih možganov v primerjavi z možgani bolnika z Alzheimerjem,
03:58
to see the real physical damage caused by this disease.
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da bi videli dejansko fizično škodo, ki jo povzroči.
04:02
As well as triggering severe loss of memory and mental abilities,
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Ta bolezen povzroča hudo izgubo spomina in mentalnih sposobnosti,
04:06
the damage to the brain caused by Alzheimer's
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hkrati pa poškodba možganov, ki jo povzroča,
04:09
significantly reduces life expectancy and is always fatal.
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zmanjša pričakovano življenjsko dobo in je vedno smrtna.
04:14
Remember Dr. Alzheimer found strange plaques and tangles
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Spomnite se, da je Dr. Alzheimer našel plake in vozliče
04:17
in Auguste's brain a century ago.
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v možganih Auguste pred več kot stoletjem.
04:20
For almost a century, we didn't know much about these.
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Skoraj stoletje nismo o njih vedeli skoraj nič.
04:24
Today we know they're made from protein molecules.
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Danes vemo, da so sestavljene iz molekul beljakovin.
04:27
You can imagine a protein molecule
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Zamislite si molekulo beljakovine
04:29
as a piece of paper that normally folds into an elaborate piece of origami.
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kot kos papirja, ki se ponavadi zloži v zapleten origami.
04:34
There are spots on the paper that are sticky.
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Na papirju so lepljive točke.
04:36
And when it folds correctly, these sticky bits end up on the inside.
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In ko se pravilno zloži, te lepljive točke pristanejo v notranjosti.
04:41
But sometimes things go wrong, and some sticky bits are on the outside.
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A včasih gre nekaj narobe in te lepljive točke pristanejo zunaj.
04:46
This causes the protein molecules to stick to each other,
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To povzroči, da se molekule beljakovin zlepijo skupaj
04:49
forming clumps that eventually become large plaques and tangles.
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in oblikujejo skupke, ki sčasoma postanejo veliki plaki in vozliči.
04:53
That's what we see in the brains of Alzheimer's patients.
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To vidimo v možganih bolnikov z Alzheimerjem.
04:57
We've spent the past 10 years at the University of Cambridge
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Zadnjih deset let smo na Univerzi v Cambridgeu
05:00
trying to understand how this malfunction works.
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poskušali razumeti, kako se ta napaka zgodi.
05:03
There are many steps, and identifying which step to try to block is complex --
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Mnogo korakov je in težko je odkriti, kateri korak je treba blokirati -
05:08
like defusing a bomb.
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kot onesposobljanje bombe.
05:10
Cutting one wire might do nothing.
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Prerez ene žice morda ne bo naredil nič.
05:12
Cutting others might make the bomb explore.
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Prerez drugih bo morda povzročil eksplozijo.
05:16
We have to find the right step to block,
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Najti moramo pravi korak in ga blokirati
05:18
and then create a drug that does it.
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in nato najti zdravilo, ki to stori.
05:21
Until recently, we for the most part
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Do pred kratkim smo večinoma
05:23
have been cutting wires and hoping for the best.
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samo rezali žice in upali na najboljše.
05:25
But now we've got together a diverse group of people --
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A sedaj imamo raznoliko skupino ljudi,
05:28
medics, biologists, geneticists, chemists, physicists, engineers and mathematicians.
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zdravnike, biologe, genetike, kemike, fizike, inženirje in matematike.
05:34
And together, we've managed to identify a critical step in the process
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In skupaj nam je uspelo določiti kritičen korak v tem procesu
05:38
and are now testing a new class of drugs which would specifically block this step
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in sedaj testiramo novo vrsto zdravil, ki naj bi blokirala ta korak
05:42
and stop the disease.
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in ustavila bolezen.
05:44
Now let me show you some of our latest results.
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Naj vam sedaj pokažem naše najnovejše rezultate.
05:46
No one outside of our lab has seen these yet.
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Nihče izven našega laboratorija jih še ni videl.
05:49
Let's look at some videos of what happened when we tested these new drugs in worms.
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Poglejmo videe o tem, kaj se je zgodilo, ko smo preizkusili to zdravilo v črvih.
05:54
So these are healthy worms,
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To so zdravi črvi
05:56
and you can see they're moving around normally.
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in lahko vidite, da se normalno premikajo.
05:59
These worms, on the other hand,
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Ti črvi pa imajo v sebi
06:02
have protein molecules sticking together inside them --
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molekule beljakovin, ki se lepijo skupaj -
06:05
like humans with Alzheimer's.
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kot ljudje z Alzheimerjem.
06:07
And you can see they're clearly sick.
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In lahko vidite, da so bolni.
06:09
But if we give our new drugs to these worms at an early stage,
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A če damo nova zdravila tem črvom v zgodnjem stadiju,
06:14
then we see that they're healthy, and they live a normal lifespan.
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lahko vidimo, da so zdravi in živijo normalno dolgo.
06:19
This is just an initial positive result, but research like this
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To je samo prvi pozitiven rezultat, a take raziskave
06:22
shows us that Alzheimer's is a disease that we can understand and we can cure.
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nam pokažejo, da je Alzheimer bolezen, ki jo lahko razumemo in zdravimo.
06:27
After 114 years of waiting,
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Po 114 letih čakanja
06:30
there's finally real hope for what can be achieved
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je tu končno upanje, da lahko kaj dosežemo
06:32
in the next 10 or 20 years.
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v naslednjih 10 ali 20 letih.
06:36
But to grow that hope, to finally beat Alzheimer's, we need help.
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Da bo to upanje raslo, da bi končno premagali Alzheimerja, potrebujemo pomoč.
06:40
This isn't about scientists like me --
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Tu ne gre za znanstvenike, kot sem jaz -
06:42
it's about you.
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gre za vas.
06:44
We need you to raise awareness that Alzheimer's is a disease
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morate ozaveščati druge, da je Alzheimer bolezen
06:48
and that if we try, we can beat it.
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in da jo lahko premagamo, če se potrudimo.
06:50
In the case of other diseases,
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V primerih drugih bolezni
06:52
patients and their families have led the charge for more research
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so bolniki in njihove družine navijali za več raziskav
06:55
and put pressure on governments, the pharmaceutical industry,
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in izvajali pritisk na vlade, farmacevtsko industrijo,
06:58
scientists and regulators.
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znanstvenike in odločevalce.
07:01
That was essential for advancing treatment for HIV in the late 1980s.
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To je bilo ključno pri odkrivanju zdravila za HIV v poznih 80-ih letih.
07:05
Today, we see that same drive to beat cancer.
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Danes vidimo isti zanos v bitki proti raku.
07:10
But Alzheimer's patients are often unable to speak up for themselves.
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A bolniki z Alzheimerjem pogosto ne morejo govoriti v svojem imenu.
07:14
And their families, the hidden victims, caring for their loved ones night and day,
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In njihove družine, skrite žrtve, zanje skrbijo noč in dan
07:19
are often too worn out to go out and advocate for change.
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in so pogosto preveč izmučene, da bi se zavzemale za spremembe.
07:23
So, it really is down to you.
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Torej je odvisno od vas.
07:27
Alzheimer's isn't, for the most part, a genetic disease.
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Alzheimer načeloma ni genetska bolezen.
07:31
Everyone with a brain is at risk.
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Vsakdo z možgani je ogrožen.
07:34
Today, there are 40 million patients like Auguste,
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Danes imamo 40 milijonov bolnikov, kot je bila Auguste,
07:38
who can't create the change they need for themselves.
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ki ne morejo poskrbeti za spremembe, ki jih potrebujejo.
07:41
Help speak up for them,
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Pomagajte jim spregovoriti
07:44
and help demand a cure.
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in pomagajte zahtevati zdravilo.
07:47
Thank you.
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Hvala.
07:48
(Applause)
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(Aplavz)
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