'Off switch' discovery could help clear our brains of a common parasite

45 pointsposted 15 hours ago
by amichail

10 Comments

Aurornis

12 hours ago

The "off switch" is a protein within the parasite that they turned off with genetic modifications. They didn't actually find a treatment that could be used on wild parasites.

> Gaji and his team might have found a lead, though: in a new study, they have shown that switching off just a single protein inside the microscopic parasite can kill it.

> The protein, TgAP2X-7, appears to be essential to the parasite's ability to invade a host, form plaques, and self-replicate. To prove this, the team genetically modified some parasites so that their TgAP2X-7 proteins function normally unless auxin (a plant hormone that regulates growth) is added, in which case the proteins would quickly degrade.

So it could be helpful research for something, but there are a lot of proteins within parasites that are necessary for growth and survival. Turning any number of proteins off could end the parasite's ability to do something, but that's not helpful unless you also have a mechanism to induce that change without harming the host.

chasil

12 hours ago

Toxoplasma Gondii is noted for causing behavioral differences in infected hosts.

https://en.wikipedia.org/wiki/Toxoplasma_gondii#Behavioral_d...

andrekandre

10 hours ago

after reading the whole wiki on that thing.... kind of terrifying...

was thinking of getting a cat but maybe not anymore...

adastra22

8 hours ago

Just keep your cat indoors.

FWIW the health impacts of a rodent infestation are probably worse than the cat parasite thing. Best defense against mice/rats is a feline friend.

Wobbles42

21 minutes ago

Best defense against rats and mice is a ferret friend. Their odor is far more effective at deterring rodents than felines are.

esperent

8 hours ago

> Just keep your cat indoors.

Maybe if you have a big house, but I keep seeing people keep cats or dogs in small houses or even apartments and it feels so sad, it's a kind of animal abuse. If you can't give your pet a good life you should not get a pet.

aspect0545

an hour ago

What if it’s a small apartment, but the life is a significant albeit marginal improvement over life in a shelter? Would it make a difference if it were a shelter where animals are killed after a certain period without being adopted?

Please note that I’m on purpose phrasing this to be a bit contrarian. Not trying to rattle any cages (no pun intended), just found myself initially agreeing with you and then not being sure anymore.

pointlessone

2 hours ago

Toxoplasma Gondii.

Damn clickbait… it took title, 5 paragraphs, and an ad break before they even mentioned what the parasite is.

BobbyTables2

7 hours ago

They did tests on human foreskin…

I have some questions about the goals…