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Gene therapy restored hearing in deaf patients

jonathanlb

This is great news. Hopefully this will be expanded to other forms deafness like those caused by ototoxic medication, ear infections, and general sensorineural hearing loss.

im3w1l

This particular study looks like it's dealing with a pretty narrow condition and solution (protein missing - add gene for protein). I don't think this particular research can be extended the way you hope.

janeerie

Yes, I would really like to see research targeting Connexin 26, since it's the most common cause of hearing loss, but it seems it's much more difficult to "cure."

jonathanlb

I agree. The causes of deafness I mentioned are diverse and fall outside the specific focus of this current study. Ideally, future research will address deafness caused by these and other other factors.

vonnik

agumonkey

somehow it seems the singularity is here .. i hope it's well distributed

fao_

I don't see how this represents the singularity. This is all humans doing work and building knowledge, much like it has always been. Can you point to a specific section of the article that elicits that assumption? Thanks

jhaddow

How would one find out if they have this type of hearing loss? I have moderate to severe hearing loss in both ears since birth and there’s never been an attempt that I’m aware of to diagnose the cause beyond a standard inner ear examination.

codytruscott

Whole Genome Sequencing is affordable now. I’d suggest a 20x hifi long read from broad clinical labs for $1200 or so. Use opencravet to dig into the results. They just posted a webinar for personal analysis https://wse.zoom.us/webinar/register/WN_-VvYJ8FKRcGaKCQtLFrU...

Franklin by genoox is a slicker and possibly more approachable product depending on your interface preferences.

Genetic research — due to the number and subtly of variants — is ripe for citizen science in my opinion.

gavinray

As a follow-on to this:

If you have partial genome data from 23andMe, Ancestry, etc, you can use what's called "genomic imputation" to do a sort of probabilistic gap-filling in your genome.

It's a bit tricky to do yourself, but there are paid services that will run the imputation for you and share the results.

I paid $15 for mine at https://dnagenics.com

---

@codytruscott I signed up for that webinar, I hadn't heard of this tool before, thanks!

Got any other useful links/tools to share by chance?

codytruscott

Rather than 23andMe, Ancestry ($50-$100) etc => imputation, broad clinical labs offers exome + genome blended for $120.

https://usegalaxy.org is pretty remarkable and provides access to a ton of open source bioinformatics tools + compute to process the files.

I really think the $1200 20x pacbio from broad is worth it if you are going to make it serious hobby.

beaugunderson

the site i maintain is a bit out of date, but i accept PRs if you have time to add the broad clinical labs data!

https://whichgenome.com/

apt-apt-apt-apt

Asking your ear doctor seems like a good idea for this, rather than random people on HN..

jhaddow

Do you want to be my ENT?

invalidOrTaken

asking chatgpt, it seems like the filters are

1) symptomatic ("OTOF-related hearing loss is usually prelingual, severe-to-profound, and non-progressive.")

2) family history (the gene mutation in question is not sex-linked andd must come from both parents, though either/both could just be recessive carriers of the gene)

3) genetic testing at a lab

max_

I see alot of advances powered by genetics now days.

Is there a specific field in genetics pushing this?

I used to hear buzz about CRISPER/CAS9 is it what is underlying most of these advancements?

How come alot of gene editing stocks have taken a serious beating if the tech is so good.

Many, many gene editing stocks have lost more than 90% of thier value since IPO.

searine

The tech behind this is not new or difficult. The issues are related to safety and regulation. Early efforts in gene therapy had disastrous results and current treatments are not trying to repeat past mistakes.

There is tremendous potential for gene therapy to cure disease, however it needs (and so far has had) strict regulation, particularly if the changes can be inherited.

beambot

> Early efforts in gene therapy had disastrous results

Can you share examples...? Just curious as an outsider looking in.

ortusdux

https://pharmaceutical-journal.com/article/feature/gene-ther...

"The most notable obstacle faced in the gene therapy field was that of Gelsinger in 1999, who is understood to have died after his body overreacted to the adenovirus vector. Gelsinger had a rare disorder in which the liver lacks a functional copy of the ornithine transcarbamylase (OTC) gene and, consequently, the body is unable to eliminate ammonia, a toxic breakdown product of protein metabolism."

"A gene therapy for children with severe combined immunodeficiency (SCID) was delivered [to two independent groups in London and Paris] and was incredibly successful,” explains Griesenbach. “But, [in 2008; between three and six years later], a small proportion of children [in Paris] developed leukaemia induced by the vector, which had inserted itself into a gene that controls cell division [4] .”

smath

Regeneron had announced positive results in its gene therapy drug for deafness in Feb 2025: https://investor.regeneron.com/news-releases/news-release-de...

FranckDernoncou

The research study is behind a paywall: https://doi.org/10.1038/s41591-025-03773-w

I'm always amazed that some people still choose to publish in paywalled journals.

S4H

How challenging is it for a person who has been deaf for let's say 20 years to suddenly regain hearing?

ordu

Really challenging. In some aspects it can be worse than to regain vision.

If you are not accustomed to sounds, they can be annoying, and may make you feel tired. The same can happen with vision, it is just too much, but you can close your eyes, and shut out vision stimuli. You can't do that with hearing. At least if you regain hearing with normal sensitivity, you can be overwhelmed by sounds of your body.

It is easier with implants, which can be shut off.

jallmann

I can't say anything about the specifics of this treatment, but in terms of their ability to fully benefit from hearing, it would depend on when they became deaf, and the severity of their deafness.

If they were born deaf, or lost hearing as a young child during the language development stage, then it would probably be a long adjustment. Things would just be noise and it would take a lot of training to distinguish sounds, speech, etc. And unlike a cochlear implant, you couldn't just take it off to give your brain a rest.

If they had hearing loss later in life, or some residual hearing, then they probably have a better chance of re-adjusting to hearing.

d0100

Anyone from the deaf community that can tell us how these kind of news are received?

I wonder how this compares to animosity towards coclear implants by a subsection of the community

retrac

Controversial in the same way cochlear implants are.

Many deaf/Deaf parents want children who hear. And I think absent the cultural consideration, almost all would want children who hear.

But you can't ignore the cultural consideration. If you are deaf, and have a deaf child, curing that child's deafness means they will move away from you later in life. It's a kind of alienation even when the child remains bicultural, they usually end up almost entirely in the hearing world.

That said, most deaf people who have children have hearing children anyway. Hereditary deafness like that is relatively rare like that.

But for people from such families, and who live in a culturally deaf world -- they are not disabled. The cultural environment they live in is ... one in which deafness is not disabling. And it's going to be a very high hill to climb to convince them that they are missing something. They certainly don't feel it. This is particularly true in the United States which has such a proud tradition of deaf culture and education -- you can go all the way to doctorate level studies in ASL, work in ASL, the hearing world being a strange foreign culture you only rarely wade into -- only rarely need to.

I'd cure it for myself, and my child if I had one. No question. But I'm not culturally deaf. I feel isolated by it in the same way most hearing people anticipate deafness to be as an experience. But again -- people who live in the deaf cultural world -- they do not feel that, and they don't feel disabled because, in their context, they aren't. It's hard to communicate this to most hearing people. The usual response is dismissive, and unfortunately I think a lot of that ultimately goes back to very old metaphysical attitudes towards language and intelligence. A lot of hearing people still don't believe, deep down, that sign languages are equivalent to spoken languages, in particular. It's just gesture. You're lacking something essential to the human condition without spoken language. Etc. But for the culturally deaf, nothing is missing from their lives, except the perception of sound.

akoboldfrying

> But you can't ignore the cultural consideration.

We can and should, the same way we ignore the corresponding "cultural consideration" that mothers who have undergone female genital mutilation themselves will feel alienated from their daughters if they do not inflict the same treatment on them. In this case, most people have no problem recognising that the rights of the daughter to enjoy her own sensory experience far outweigh the (quite real) emotional isolation that would be experienced by the parent -- so why is deafness treated differently?

Denying another person sensory experience is abuse. If that person is a child, it's child abuse. For me the harm inherent in this has nothing to do with whether sign languages are perceived as "real" languages on par with spoken languages. It's obvious to me as a hearing person that sign languages are indeed "real, full" languages, the same way written languages are, and, more generally, the same way that languages I don't personally understand but other people do, are. Sign languages are real, full languages -- and preventing a person who would be able to hear from hearing is still abuse.

I think the reason this is not called out more frequently and stridently by hearing people is that many of us fear being labeled "prejudiced" or worse, and being associated with the political right, who have a long history of making absolute moral claims about outgroups. It's simply an unusual quirk of our times that this specific quality of being seen as culturally presumptuous is the thing that no Right-Thinking Person wants to be seen doing right now, resulting in many otherwise intelligent people bending over backwards to avoid the stigma, even to the point of denying obvious realities like "a life that includes access to more sensory experience is a richer life".

pcthrowaway

> But again -- people who live in the deaf cultural world -- they do not feel that, and they don't feel disabled because, in their context, they aren't

I can respect resisting pressure to be part of the hearing world, but there are certainly ways in which deafness impacts one's safety and opportunities. Not being able to hear sirens, or oncoming trucks, or cars honking their horns, or cyclists saying "on your left", or fire alarms makes the world less safe for you (and for others who may have the expectation you can hear them)

I'm certainly not saying this to suggest people should be forced to join the world of the hearing if given the option, but I do think doing so would be the responsible option, if it's a readily available one.

Kind of like I don't expect people to learn other languages than their native tongue, even when it's a language spoken by the majority in their place of residence. But if you don't speak the language spoken by the majority, and are presented with the opportunity to instantly learn it (like "I know Kung Fu"-Matrix style), I certainly think it would be more responsible to do so.

zie

> I can respect resisting pressure to be part of the hearing world, but there are certainly ways in which deafness impacts one's safety and opportunities.

I agree, but that's not a result of me being deaf, it's a result of the hearing world just blindly assuming everyone can hear these things. People screw up hearing sirens or "on your left" or whatever ALL the time, even if they are hearing (distracted, headphones, etc).

If we took away the assumption that everyone can hear everything all the time, it would help everyone, not just people who are deaf.

For instance, studies show that subtitles/captions being always on helps retention of the information you just watched[0]. Yet subtitles/captions not even being included is still the default for many types of media. When captions are included, often times they are wrong, either subtly or grossly. Even in education settings where one would think people want the information retained pretty much never ever bother to include or turn on captions. Despite decades of studies saying captions help a lot.

Go to your local home improvement store and try to buy a battery powered smoke/fire alarm that will work for deaf people. I'm betting despite lots of options the chances are basically 0 for finding one(yet they do exist in the world). Finding one that works with wired 110V is a little above zero. What if it was the other way around instead, and it was hard/impossible to find a fire/smoke alarm that didn't work for deaf/HoH people?

0: UW-Madison did a comprehensive overview[0] of over 100 empirical studies in 2015 showing that captions are useful for everyone, not just deaf/hard of hearing people. "The empirical evidence is clear: Captions, also known as same-language subtitles, benefit everyone who watches videos." They recommended just always showing captions.

source: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5214590/

perryprog

> Not being able to hear sirens, or oncoming trucks, or cars honking their horns, or cyclists saying "on your left".

For what it's worth, it's generally thought that deaf drivers are safer drivers. See https://www.handspeak.com/learn/280/.

> fire alarms

ADA requires fire alarms to include visual alarms (as in flashing strobes) for this reason.

rfrey

This is a super interesting comment, thank you. I am certainly guilty of believing the deaf experience is inferior to the hearing experience - but not because I think ASL is lesser than spoken languages or deficient as a communication channel. It's because deaf people don't hear music. I know people can dance to the beat and often distinguish songs by vibration patterns, but that is surely not equivalent to the emotional and intellectual experience most people can have listening to music.

Less important but similar: birdsong, the sound of crashing waves, children laughing in a playground. Hearing brings us much besides transfer of information.

On the other hand, from my brief number of ASL lessons (about a years worth taken as an adult in my mid 20s) the facial expressiveness inherent to ASL gives it something hearing people don't get in normal conversation. But to me that's a pretty small benefit compared to the things a deaf person is missing.

I'd respect anybody who chose not to get treated for themselves, but I think I'd be pretty judgy pretty quickly for anybody who tried to deny or dissuade anybody else from becoming hearing, including their children.

squigz

> On the other hand, from my brief number of ASL lessons (about a years worth taken as an adult in my mid 20s) the facial expressiveness inherent to ASL gives it something hearing people don't get in normal conversation. But to me that's a pretty small benefit compared to the things a deaf person is missing.

I don't know ASL, so can you elaborate on this? Aren't facial expressions just as important for non-deaf people?

magicalhippo

> culturally deaf world

What's this defined as? Keeping away from all non-deaf people?

retrac

That happens naturally, due to the language barrier. I'd suggest a definition of "culturally deaf" as having sign language as your native language.

UltraSane

The culture unique to native ASL users.

UltraSane

I truly sympathize with deaf people not feeling disabled due to how well modern US culture has adapted to their needs but hearing is essentially a superpower compared to total deafness.

bigstrat2003

There are few things that make me angrier than trying to hold back cures for deafness because of "cultural erasure" or whatever the phrasing is. It is utterly reprehensible. To try to keep someone disabled (yes - disabled, not "differently abled", they are objectively lacking a capability that a healthy human has) just so that there are more people in your community is objectively evil in my book. It is directly doing harm to people for one's own benefit.

If a person wishes to not get a certain treatment - fine, that's their right. But when one starts trying to keep others down, that's not ok.

retrac

I said "not disabling", not that deafness is not a disability.

Those two things mean different things to me. Obviously deaf people cannot hear. Not able. Dis-able. Deafness is a disability.

But not all disabilities are generally disabling of individuals. The only disability that deafness causes is a lack of perception of sound.

Hearing people have a panoply of inferences about what that means -- about how it disables and how broadly it disables. And most of them are faulty. It doesn't result in isolation, in particular, in a deaf cultural context. In fact in the deaf cultural context about the only thing missing is some auditory alerts that would be nice as a visual complement, and some aspects of music and the like. Yes. Birds chirping is beautiful. I miss it deeply. It'd be nice to have a world where every kid gets to experience that.

But all of the social and emotional and cognitive consequences imagined of deafness, are not innate to the lack of hearing.

BeetleB

Sorry, but they are differently abled. Their brains and perceptions are different from people who can hear. You are assuming that those differences are all negatives. They do not believe that to be the case.

Many people here self-diagnose as Asperger's. Can you not see why they would not want a "cure"?

Being an extrovert objectively gives you great advantages in (most) societies. As an introverted parent, I would definitely fight any "cure" for my introverted children.

Furthermore, if both parents are deaf and the kid is not deaf, there's a good chance that in the first so many years of life, the kid will have poorer mental development than the deaf kid. Not quite the same, but an example: Deaf kids born to deaf parents hit the same language milestones as hearing kids born to hearing parents. But deaf kids born to hearing parents do worse, because the parents don't know the appropriate way of thinking/communicating.

Related: Deaf kids who were given cochlear implants, but no sign language training fared a lot worse than both hearing kids and deaf kids who learned sign language.

nashashmi

Do people and society with intentional lack of computers make you angry as well because those people see benefits for their culture not to have one? I think you believe being disabled is a really bad situation but they believe it is a heightening of other senses, and that is something you cannot relate to.

TRiG_Ireland

There are few things that make me angrier than people who have very strong opinions on subjects they have only just become aware of.

vasusen

I am not from the deaf community, but my son has severe hearing loss. I really look forward to a world where condition like his simply becomes fixable like bad teeth and he doesn't have to miss out on so many things.

ezfe

I have severe hearing loss and that animosity is so stupid.

My handicap is handled very well by my hearing aids and everyone should have that opportunity.

zie

It's a double edged sword, because it shrinks the already small deaf/HoH population and we can't yet eradicate hearing like we can smallpox(completed), polio(mostly gone), etc.

It's awesome that it works for some people, just like CI's work for some people(but not all).

Until we can restore hearing(or insert favourite disability here), to everyone, it's going to be controversial inside of those communities, because it makes our already smaller world, smaller. Which causes lots of emotions as you can imagine.

That doesn't mean our world has to be smaller, even now. There are lots of things we can do to make deaf people's worlds bigger(and again, insert any other disability here). We choose not to do them because some people think they are hard, some people think they are expensive and some people think it's not needed.

Perhaps some of that is true, for some items on the massive list.

“Blindness separates people from things; deafness separates people from people.” - Helen Keller

Deafness doesn't have to separate people from people, but it does.

Until we can eradicate XXX disability completely(unlikely) we should as a society strive to make their worlds bigger, not smaller. Sadly so many people don't feel that way, for various reasons.

guerrilla

That was my first thought too. I wonder how many people would choose to stay deaf just to stay in the community.

artursapek

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pugworthy

If this is a joke it's in extremely bad taste

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squigz

You know, whenever treatment for autism comes up, we get a lot of comments heavily suggesting curing autism is basically eugenics.

Why is it that some things are seen as a disability we should try to fix in our children, and others - which are in many ways just as debilitating - seen as some kind of beautiful part of humanity?

joefourier

Autism is a spectrum disorder and I don’t think it should be controversial to cure low functioning autism. However, high functioning autists can be argued to be more of a personality variant than a disability, with different strengths and weaknesses compared to neurotypical people. Society benefits greatly from supporting high functioning autistic people in say, technical fields where hyperfocus, narrow obsessions and systemising thinking are an advantage.

Meanwhile, having a genetic condition like haemophilia doesn’t give you any conceivable advantage.

iteria

I don't even think there should be a conversation around high functioning autistics. My kid suffers from autistic catatonia. She's also extremely high functioning. I'm sorry, there is no world where I'm going to say no thanks to a cure for my daughter's body suddenly locking into place for an unknown period of time or losing the ability to speak or function randomly or hell just understand human expression without intense intervention. We can argue about their special brain powers or whatever, but all I'm seeing is that high functioning autistic have a much higher rate of self-harm and suicide. It can't be that great.

guerrilla

> Meanwhile, having a genetic condition like haemophilia doesn’t give you any conceivable advantage.

Sickle-cell anemia does though. I wonder if some day there could be a survival advantage for haemophilia. What if we erase the genetic code that ends up saving us from some alien virus, you know?

I'm not saying this is a good argument, just something interesting to think about.

squigz

> Society benefits greatly from supporting high functioning autistic people in say, technical fields where hyperfocus, narrow obsessions and systemising thinking are an advantage.

At the expense of those people having to live with all the unmentioned negative aspects of autism.

(To say nothing of whether those are actually positives or not. Personally, I don't see how hyperfixating on something for a few weeks at a time at the expense of all my other responsibilities is a superpower, but hey)

UltraSane

This is interesting because the quack who created Chiropractic wrongly thought he cured deafness with spinal manipulation. Just shows how powerful the real scientific method is.

froggertoaster

What immediately sprung to mind is how the deaf community has seen things like this as a personal and existential threat.

To me it's an obvious disability, and deaf people SHOULD want to be cured, but tribalism wins that argument all too often.

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