February 16, 2022
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The human body is pretty incredible. As we learn more about how different parts interact, it becomes even more amazing. There is growing interest in how our gut and skin communicate with each other.
The “gut-skin axis” refers to all the connections between our skin and digestive system. The skin and digestive tract both interact with our inner and outer environments. This means they’re in constant communication with the world around us and the world inside of us.
Much of this communication is done through our body’s microbiome. Our microbiome includes trillions of bacteria, fungi, and other living things. They live in and on our body, mainly in our gut and on our skin.
These microbes play an important role in our health. An imbalance in either the skin or gut microbes often affects the other. Alterations in the microbiome are seen in a variety of health conditions. These include mental health conditions, irritable bowel syndrome (IBS), diabetes, and skin conditions.
Eczema is an inflammatory skin condition. People with eczema have some distinct differences in their microbiomes. We are still finding out how our microbes can be modified to support better health. The hope is that this information can help to find better treatments for eczema.
Treatment for eczema is no longer just about targeting your skin. It’s possible that changing your gut microbiome may improve your skin, too.
Microbiome through the life cycle
The makeup of the microbiome starts from birth. There are a number of factors that influence the colonies that set up residence in your gut and on your skin.
There’s no one single healthy microbiome. One healthy person will not have the same microbiome as another healthy person.
Research has noted distinct differences in the microbiome of people with certain diseases. It’s unclear what happens first.
In babies and children, eczema can be an early sign of allergy risk. Eczema and allergies are both triggered by an abnormal immune response.
The immune system usually only responds to a true threat such as a virus or harmful bacteria. It will send out an army of inflammatory proteins to fight off an invader. With allergies or eczema, the immune system gets triggered by something that shouldn’t trigger it.
Babies with eczema are more likely to develop food allergies or asthma. Allergy testing is often recommended for babies and children with eczema. Removing any allergens from the diet will often improve the skin.
Children with eczema have different skin bacteria compared with children without eczema.
Studies of the gut microbiome support the idea that skin and gut health are connected. Children without eczema have more gut microbiome diversity compared with those with eczema. Greater diversity in the gut microbiome is often a sign of better health.
Sometimes children grow out of eczema. In adults, especially older adults, several changes naturally occur in the skin. This alters the skin’s microbiome to favor more beneficial bacteria. This crowds out many of the inflammatory bacteria associated with eczema. This may explain why some cases of eczema improve with age.
Eczema treatment and the microbiome
There are theories that changing the gut microbiome could improve eczema. Everyone’s microbiome is slightly different. It’s impossible to know what the “perfect” microbiome would look like to prevent or manage eczema.
There is also the ongoing question of what comes first. Does something cause a shift in the microbiome, leading to disease? Or does the disease cause a change in the microbiome?
Common treatments for eczema include topical creams or narrow band ultraviolet treatment. These are found to change the skin’s microbiome. They promote healthy bacteria and reduce inflammatory bacteria on the skin. This relieves eczema symptoms.
Probiotic and prebiotic treatment for eczema
You may have heard about fecal transplants. This is when gut bacteria from a healthy donor are delivered into the gut of someone else. It’s been done to restore healthy gut bacteria in people with inflammatory bowel disease (IBD) or Clostridium difficile (C. diff) infection.
Skin microbiome transplants may be the next thing. Research is exploring whether it may help to treat eczema. In theory, healthy donor skin bacteria could restore balance to the skin microbiome. There is still more work to do before this becomes a routine practice.
Probiotic supplements can be helpful for people with digestive symptoms. With skin and gut microbes so connected, could oral probiotics also support skin health? There are theories that changing gut bacteria with probiotics may improve skin, too. So far, there are no results to support this idea.
A 2018 Cochrane review explored 39 randomized controlled trials on this topic. The review looked at whether oral probiotics would improve eczema. There were no trials that showed significant improvement in eczema with probiotic supplements.
At this point, there’s no specific probiotic supplement to improve eczema. With further research, it’s possible that could change.
There may be some promise with synbiotics. Synbiotic supplements include both probiotics and prebiotics. Probiotics are the healthy bacteria and prebiotics are food to nourish the probiotics. This combination may increase the odds of certain bacteria thriving in the gut.
A 2016 meta-analysis looked at whether synbiotics could be helpful for those with eczema. It showed that specific synbiotics could help treat dermatitis in children aged 1 year and older. More research is needed to learn whether synbiotics may play a role in eczema prevention.
Staphylococcus aureus and eczema severity
People with eczema have more Staphylococcus aureus (S. aureus) bacteria on their skin. This bacteria is associated with greater inflammation. The more severe the eczema, the greater amount of S. aureus bacteria are present.
There are several species of helpful bacteria that live on the skin. Many act as barriers to prevent harmful invaders from entering the body. Some bacteria actually have antimicrobial properties to block pathogens. The population of S. aureus makes it harder for beneficial bacteria to live on affected areas of the skin.
Recommendations for a healthy gut
There are things that you can do to support gut health. At this point, it’s not known exactly what the “best” gut microbiome is for eczema. People with eczema and other inflammatory conditions tend to have less diverse microbiomes.
Certain lifestyle choices can support greater diversity within your microbiome:
A high-fiber diet is associated with greater diversity in your gut microbiome. Fiber sources feed healthy bacteria in your gut. You can get fiber in your diet from whole grains, nuts, seeds, beans, vegetables, and fruits.
Fermented foods are created using microbes. They are great sources of probiotics and can improve your gut health. Fermented foods include yogurt, kefir, tempeh, kimchi, and sauerkraut.
Alcohol intake is shown to change the gut microbiome. This can lead to gut dysbiosis. It’s best to reduce alcohol intake if you can.
If you often feel stressed, you know that stress can really affect how you feel. Research suggests it may also change our microbiome. It’s not realistic to completely get rid of your stress, but finding ways to better cope may help.
We have trillions of bacteria, fungi, and other living things that live in and on our body. This makes up our microbiome. Most of these microorganisms live on our skin and in our gut. These microorganisms are in constant communication. This is known as the gut-skin axis.
Everyone’s microbiome is a little different and there isn’t one perfect microbiome. There are distinct changes seen with certain conditions. People with eczema have different bacteria colonies compared to people without eczema.
There is hope that changing these colonies may play a part in treating eczema. Many current treatments reduce inflammatory bacteria and support the growth of helpful bacteria. There are things you can do to support a healthy and diverse gut microbiome. This may improve skin health, too.
Stellapharm is one of leading generics pharmaceutical companies and strong producer of anti-viral drugs in Vietnam. The company established in Vietnam in 2000; and focuses on both prescription drugs and non-prescription especially in cardiovascular diseases, antiviral drugs, anti-diabetics drugs, etc. and our products are now used by millions of patients in more than 50 countries worldwide.
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Additional information for this article: Stellapharm J.V. Co., Ltd. – Branch 1
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Theo tuổi tác, hệ miễn dịch của chúng ta trở nên kém hiệu quả hơn trong việc đối phó với các tình trạng nhiễm trùng cũng như kém đáp ứng với việc chủng ngừa. Đồng thời, hệ miễn dịch lão hóa có mối liên hệ với tình trạng viêm mạn tính, từ đó làm tăng
With age, the human immune system becomes less effective at tackling infections and less responsive to vaccinations. At the same time, the aging immune system is associated with chronic inflammation, which increases the risk of almost all conditions linked to old age. The good news is that exercising and adopting the right diet may help