Unveiling the Link Between Gut Health and Skin Disorders
Written by Professor Stephen Mashingaidze and Rumbidzai Mukori-William for BonVie Medical Aid scheme
Skin breakouts are a natural part of life, from baby heat rash to adolescent acne, pregnancy rashes to general irritations such as dry skin. For a long time now, dermatologists have been the center of skin related issues, with emphasis on cosmetics as a short term solution to improve skin health. With growing interest on how two seemingly distinct systems, the gut and the skin, have been found to be intricately connected. Research has revealed a bidirectional relationship between the gut microbiome and skin health, suggesting that an imbalance in the gut microbiome, also known as dysbiosis, can contribute to various skin disorders (1).
The Gut Microbiome: A Key Player in Skin Health
The gut microbiome comprises trillions of microorganisms that reside in the gastrointestinal tract. These microorganisms play a crucial role in maintaining gut health, regulating the immune system, and producing metabolites that can influence skin health (2). An imbalance in the gut microbiome can lead to increased inflammation,
The Skin Microbiome: A Reflection of Gut Health
The skin microbiome is composed of microorganisms that reside on the skin’s surface. While the skin microbiome is distinct from the gut microbiome, research suggests that the two microbiomes are interconnected (3). Dysbiosis in the gut microbiome can lead to changes in the skin microbiome, contributing to skin disorders such as acne, psoriasis, and atopic dermatitis.
Mechanisms Underlying the Gut-Skin Connection
Several mechanisms have been proposed to explain the gut-skin connection:
- Inflammation: Dysbiosis in the gut microbiome can lead to increased inflammation, which can exacerbate skin disorders (4). Foods high in sugar and fats and low intake of water contribute to this skin and gut health problem.
- Oxidative Stress: An imbalance in the gut microbiome can result in increased oxidative stress, which can damage skin cells and contribute to skin ageing (5). Diets high in fats and excessive alcohol consumption are key factors.
- Immune System Modulation: The gut microbiome plays a crucial role in regulating the immune system, which can impact skin health (6). Low intake of cruciferous vegetables such as broccoli and cauliflower can negatively impact immune functioning.
- Metabolites: The gut microbiome produces metabolites or short-chain fatty acids from the digestion of high-fibre foods, which have anti-inflammatory properties (7).
Skin Disorders Associated with Gut Dysbiosis
Several skin disorders have been linked to gut dysbiosis, including:
- Acne: Research suggests that an imbalance in the gut microbiome can contribute to acne by increasing inflammation and androgen hormones (8).
- Psoriasis: Dysbiosis in the gut microbiome has been observed in patients with psoriasis, and research suggests that this imbalance can contribute to the development of the disease (9).
- Atopic Dermatitis: Gut dysbiosis has been linked to atopic dermatitis, with research suggesting that an imbalance in the gut microbiome can contribute to inflammation and skin barrier disruption (10).
Therapeutic Strategies for Modulating the Gut-Skin Connection
Several therapeutic strategies can be employed to modulate the gut-skin connection, including:
- Probiotics: Probiotics are live microorganisms that can confer health benefits when administered in adequate amounts. Research suggests that probiotics can improve skin health by modulating the gut microbiome (11).
- Prebiotics: Prebiotics are non-digestible fibers that can stimulate the growth of beneficial microorganisms in the gut. Research suggests that prebiotics can improve skin health by promoting a balanced gut microbiome (12).
- Dietary Interventions: A diet rich in fruits, vegetables, and whole grains can promote a balanced gut microbiome and support skin health (13).
- Stress Management: Stress can negatively impact the gut microbiome and skin health. Stress-reducing foods: Chamomile tea, citrus, bell peppers and baobab powder can help mitigate this impact (14).
Conclusion
The gut-skin connection is a complex and bidirectional relationship that highlights the importance of maintaining a balanced gut microbiome for overall skin health. By understanding the mechanisms underlying this connection, we can develop therapeutic strategies to modulate the gut-skin axis and improve skin health. Further research is needed to fully elucidate the gut-skin connection and to develop effective treatments for skin disorders associated with gut dysbiosis.
References:
- Bowe, W. P., & Logan, A. C. (2011). Acne vulgaris, probiotics and the gut-brain-skin axis – back to the future? Gut Pathogens, 3(1), 1.
- Clemente, J. C., Ursell, L. K., Parfrey, L. W., & Knight, R. (2012). The impact of the gut microbiota on human health: An integrative view. Cell, 148(6), 1258-1270.
- Sonnenburg, E. D., & Sonnenburg, J. L. (2014). The gut microbiome at the interface of health and disease. Nature, 513(7518), 242-249.
- Salem, I., Ramser, A., Isham, N., & Ghannoum, M. A. (2018). The gut microbiome as a major regulator of the gut-skin axis. Frontiers in Microbiology, 9, 1459.
- Kong, H. H., & Segre, J. A. (2012). Skin microbiome: Looking back to move forward. Journal of Investigative Dermatology, 132(3), 933-939.
- Round, J. L., & Mazmanian, S. K. (2009). The gut microbiota shapes intestinal immune responses during health and disease. Nature Reviews Immunology, 9(5), 313-323.
- Lee, Y. K., & Mazmanian, S. K. (2010). Has the microbiota played a critical role in the evolution of the adaptive immune system? Science, 330(6012), 1768-1773.
- Halliwell, B. (2007). Biochemistry of oxidative stress. Biochemical Society Transactions, 35(Pt 5), 1147-1150.
- Belkaid, Y., & Hand, T. W. (2014). Role of the microbiota in immunity and inflammation. Cell, 157(1), 121-141.
- den Besten, G., van Eunen, K., Groen, A. K., Venema, K., Reijngoud, D. J., & Bakker, B. M. (2013). The role of short-chain fatty acids in the interplay between diet, gut microbiota, and host energy metabolism. Journal of Lipid Research, 54(9), 2325-2340.
- Bowe, W. P., & Logan, A. C. (2011). Acne vulgaris, probiotics and the gut-brain-skin axis – back to the future? Gut Pathogens, 3(1), 1.
- Scher, J. U., & Abramson, S. B. (2011). The microbiome and rheumatoid arthritis. Nature Reviews Rheumatology, 7(10), 569-578.
- Wang, I. J., & Wu, K. Y. (2015). The relationship between gut microbiota and skin diseases. Journal of Clinical and Aesthetic Dermatology, 8(10), 14–16.
- Rault-Nania, M. H., et al. (2008). Effects of probiotics on gut and skin health. Journal of Applied Microbiology, 105(3), 747-755.
- Slavin, J. (2013). Fiber and prebiotics: Mechanisms and health benefits. Nutrients, 5(4), 1417-1435.
- Sonnenburg, E. D., & Sonnenburg, J. L. (2014). The gut microbiome at the interface of health and disease. Nature, 513(7518), 242-249.
- Gao, J., et al. (2018). Impact of stress on the gut-brain axis. Journal of Clinical Gastroenterology, 52(6), 469-474.
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