September 12th, 2024

Antibiotics damage the colonic mucus barrier in a microbiota-independent manner

A study found that antibiotics can damage the colonic mucus barrier, increasing the risk of inflammatory bowel diseases by allowing bacterial penetration and triggering inflammation, independent of gut microbiota.

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Antibiotics damage the colonic mucus barrier in a microbiota-independent manner

Antibiotic use has been linked to the development of inflammatory bowel diseases (IBDs), which are characterized by a compromised colonic mucus barrier. A recent study investigated the impact of antibiotics on this mucus barrier, hypothesizing that antibiotics could disrupt its integrity, allowing bacteria to penetrate and potentially trigger inflammation. The research demonstrated that antibiotic treatment in mice led to a breakdown of the colonic mucus barrier, facilitating bacterial encroachment into the mucus layer. This disruption was found to occur independently of the microbiota, as antibiotics induced endoplasmic reticulum stress in the colon, inhibiting mucus secretion. The study utilized various methods, including fecal microbiota transplants and RNA sequencing, to confirm that the antibiotic-induced impairment of mucus production could lead to the translocation of microbial antigens into circulation and exacerbate ulcerations in a mouse model of IBD. The findings suggest that antibiotics may predispose individuals to intestinal inflammation by damaging the mucus barrier, highlighting the need for careful antibiotic use to mitigate potential adverse effects on gut health.

- Antibiotics can damage the colonic mucus barrier, increasing the risk of inflammatory bowel diseases.

- The disruption of the mucus barrier allows bacteria to penetrate and potentially trigger inflammation.

- Antibiotic-induced mucus secretion impairment occurs independently of the gut microbiota.

- The study utilized advanced techniques like RNA sequencing and fecal microbiota transplants to support its findings.

- Careful management of antibiotic use is essential to protect gut health and prevent intestinal inflammation.

Link Icon 16 comments
By @Madmallard - 4 months
I have had very high (3x upper limit normal or more) levels of fecal secretory IgA ever since I took antibiotics in 2014. Also numerous health issues and allergies that developed ever since. Nothing has seemed to really work. I have to take antihistamines just to not feel like I need to go to the emergency room from reacting to things all the time. Pretty tilting since I developed these problems at such a young age. It felt like it completely robbed my life from me. And I'm fairly certain the antibiotics did it because the problems literally just developed in the months following, and some almost immediately after taking them. One of the drugs, ciprofloxacin, seemed to cause severe connective tissue problems that are actually permanent. It is over 10 years later and I still extremely readily tear tendons and ligaments, when before I took them I never once had any problems with any of my tendons or ligaments no matter what I did and no matter how often I did it. My first tendon issues ever were the month after taking it.
By @tmnvix - 4 months
A lot of comments here claiming we need antibiotics. I can't disagree. But what can be said about the antibiotics we use on livestock? From my understanding it is a heck of a lot. When we then eat the meat do we essentially ingest 'unnecessary' antibiotics and do they contribute to the type of effect described in the article?
By @junto - 4 months
As a counter to the negative comment about this submission, I’d like to state that I really appreciate seeing content like this on HN.
By @ggm - 4 months
Nothing to remediation or repair in this. So, observational in mice, gut is gut and probably a good analogue for any non-ruminating mammal. But, how to mitigate, how to repair, what to do afterward is missing.

We need antibiotics. I don't want to go back into the world my parents lived in before they existed, I'd prefer to be in the world I was born into when they still had significant effect without wildcat over-use.

Would phage therapy avoid the problem?

By @bottom999mottob - 4 months
Unfortunately we still need oral antibiotics for things like Lyme Disease and Rocky Mountain Spotted Fever. As tick-borne illnesses go up with longer summer seasons, we'll probably have to prescribe more antibiotics. Oh well
By @thenerdhead - 4 months
Antibiotic misuse is a huge problem and even leading to resistance.

It is a good thing that we are developing verbose pathogen panels to ensure we don’t prescribe antibiotics when we have viral infections and vice versa.

Additionally the upcoming AI discovered targeted antibiotics will be game changer to remove negative or benign pathogens while maintaining your good cultures.

The challenge is that some become friends and some become foes depending on the diversity and quantity of certain species.

Gut microbiome discoveries are going to change the way we see disease in this next decade.

By @OutOfHere - 4 months
It is most important to take a very good probiotic capsule about three hours after taking every antibiotic pill. If you choose not to take it, the shock to the gut can be profound. Also, things like L-glutamine are good for helping the gut heal to the extent that it can.
By @nashashmi - 4 months
The standard treatment for H pylori is two antibiotics For 14 days.
By @itchyouch - 4 months
Basically, antibiotics are causal for leaky gut in mice.

Pretty compelling findings and the ramifications are huge!

By @bottom999mottob - 4 months
Unfortunately we still need oral antibiotics for things like
By @fnord77 - 4 months
I have crohn's disease, who can I sue?
By @snovv_crash - 4 months
... in mice.

Please let's not forget the important suffix.

By @rasengan - 4 months
slippery elm. iykyk
By @algobro - 4 months
Annual vaccines are much more convenient and are preferable to one-off treatments like antibiotics, (which reduce the nations GDP as well because of they "cure" the problem cheaply), and have proven to be safe.

I call for an immediate ban on antibiotics. Only high ranking members of society should have access. And people with good social credit scores.