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Nikhil Prasad  Fact checked by:Thailand Medical News Team Sep 23, 2024  1 week, 5 days, 4 hours, 53 minutes ago

New discovery - How gut health affects your eyes

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New discovery - How gut health affects your eyes
Nikhil Prasad  Fact checked by:Thailand Medical News Team Sep 23, 2024  1 week, 5 days, 4 hours, 53 minutes ago
Medical News: Researchers unveil a surprising connection between gut bacteria and eye diseases
We all know the importance of gut health for digestion, but recent studies are showing that the bacteria living in your gut may affect your eyes too. A team of researchers from several institutions has found that imbalances in gut bacteria, known as dysbiosis, may contribute to various eye diseases. This exciting discovery could open the door to new treatments for conditions like uveitis, glaucoma, and even age-related macular degeneration (AMD).

Gut dysbiosis and related ocular diseases.

The Research Team Behind the Study
This important research was conducted by scientists from the University of Medicine and Pharmacy Victor Babes in Timisoara, Romania, and Vasile Goldis Western University in Arad, Romania. The study brings together experts in ophthalmology, microbiology, and internal medicine to explore the connection between gut health and eye diseases.
 
The Gut-Eye Axis: A Surprising Link
The study highlights a concept called the "gut-eye axis," a communication pathway between the gut and the eyes. Essentially, the balance of bacteria in the gut influences inflammation and immunity throughout the body, including the eyes. If the gut bacteria become imbalanced, this can disrupt the immune system, leading to inflammation that can affect the eyes.
 
This Medical News report delves into the idea that diseases such as dry eye syndrome, diabetic retinopathy, and glaucoma could be impacted by gut dysbiosis. For instance, changes in gut bacteria could trigger inflammation in the retina, damaging cells and contributing to disease progression.
 
Study Findings: Gut Bacteria's Role in Eye Health
The research focuses on the gut microbiota - trillions of microorganisms living in our intestines. These bacteria help with digestion and play a crucial role in regulating the immune system. In a healthy state, the gut microbiota is balanced, but when there’s an imbalance (dysbiosis), it can cause health problems, including eye diseases.
 
The study found that specific changes in gut bacteria are linked to eye conditions. For example, patients with uveitis, a type of inflammation in the eye, were found to have lower levels of beneficial bacteria like Lachnospira and Faecalibacterium prausnitzii. These bacteria help reduce inflammation, and their absence can make eye inflammation worse.
 
Similarly, people with age-related macular degeneration (AMD) showed changes in their gut microbiota. A decrease in certain bacteria may contribute to the breakdown of the blood-retinal barrier, which protects the retina. This can lead to the formation of drusen, small yellow deposits in the eye, which are an early sign of AMD.
 
Diabetic retinopathy, another common eye disease, also seems to be linked to gut dysbiosis. The researchers found that diabetic patients with retinopathy had higher levels of harmful bacteria and lower levels of anti-inflammatory bacteria. This imbala nce may contribute to the inflammation and damage seen in the retina of diabetic patients.
 
How Gut Dysbiosis Causes Eye Problems
The gut microbiota affects many parts of the body through several mechanisms. One key way is by regulating the immune system. When the gut bacteria are out of balance, the immune system can become overly active, leading to inflammation. This can impact the eyes, particularly in conditions where inflammation plays a significant role, such as uveitis and AMD.
 
Additionally, gut bacteria produce substances like short-chain fatty acids (SCFAs) that help control inflammation. When there are fewer beneficial bacteria, the production of SCFAs decreases, leading to higher levels of inflammation throughout the body, including in the eyes. This disruption can contribute to the progression of diseases like glaucoma, where inflammation damages the optic nerve.
 
Potential New Treatments for Eye Diseases
One of the most exciting aspects of this research is the potential for new treatments. By targeting the gut microbiome, scientists may be able to develop therapies to prevent or treat eye diseases. Probiotics, prebiotics, and even fecal microbiota transplants (FMT) are being studied as possible ways to restore gut balance and reduce eye inflammation.
 
For example, probiotics - live bacteria that are beneficial to the gut - have been shown to reduce inflammation in animal models of eye disease. In the future, patients with uveitis or AMD may be able to take probiotics to help manage their symptoms. Similarly, fecal microbiota transplants, where gut bacteria from a healthy person are transferred to a patient, have shown promise in reducing symptoms of autoimmune diseases that affect the eyes.
 
Conclusion: The Future of Eye Care
The discovery of the gut-eye axis is a breakthrough in our understanding of how the body’s systems are interconnected. By focusing on gut health, researchers hope to find new ways to treat and prevent eye diseases. As the study concludes, therapeutic modulation of the gut microbiome could become a powerful tool in improving eye health. Probiotics, prebiotics, synbiotics, and even fecal microbiota transplants are showing promise as ways to restore gut balance and reduce inflammation in the eyes.
 
In the future, it’s possible that managing your gut health could be a key part of maintaining good vision. Researchers are already working on new therapies that could help patients with uveitis, AMD, and other eye conditions. The potential to improve vision by targeting the gut is an exciting prospect that could lead to better treatments and a higher quality of life for millions of people around the world.
 
The study findings were published in the peer-reviewed Journal of Clinical Medicine.
https://www.mdpi.com/2077-0383/13/18/5611
 
For the latest Research news, keep on logging to Thailand Medical News.
 
Read Also:
https://www.thailandmedical.news/news/covid-19-infection-linked-to-rare-vision-loss-a-case-study
 
https://www.thailandmedical.news/news/breaking-even-mild-covid-19-can-cause-microvasculature-changes-of-the-optic-nerve
 
https://www.thailandmedical.news/news/compared-to-earlier-sars-cov-2-variants,-omicron-causes-a-greater-degree-of-dysbiosis-of-the-intestinal-microbiota

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