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Can A New Sun Cream Compound Offer Unprecedented Protection Against UVA Radiation?

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A new compound developed by University of Bath scientists in collaboration with King's College London offers unprecedented protection against the harmful effects of UVA radiation in sunlight, which include photo-ageing, cell damage and cancer. The research is published in the Journal of Investigative Dermatology.

Most sunscreens on the market protect well against solar UVB radiation but have limited effectiveness against UVA-induced damage, relying on the reflective properties of creams to defend against dangerous UVA rays. However, this compound, called the mitoiron claw by the team, offers strong protection within our cells precisely where the greatest damage from UVA occurs, and doesn't interfere with rest of the cell.

The researchers from the University of Bath, working with colleagues at Kings College London, hope to see the mitoiron claw compound added to sunscreens and skin care products within three to four years.

Free iron concentration is particularly high within mitochondria, the batteries of the cell, where it is needed for several vital functions. However, upon exposure to UVA in sunlight, excess free iron acts as a catalyst for the production of toxic reactive oxygen species (ROS), damaging cell components such as DNA, fat and proteins thereby increasing the risk of cell death and cancer.

The Mitoiron Claw

This custom-designed iron chelator - a molecule that binds to an iron atom like a claw - moves directly to mitochondria where it safely binds the excess free iron, preventing it from reacting upon exposure to UVA rays. Tests with human skin fibroblast cells exposed to UVA radiation equivalent to 140 min of uninterrupted sun exposure at sea level showed cells treated with the mitoiron claw were completely protected against cell death. Untreated cells suffered significant cell death.

"The role of iron-mediated damage induced upon exposure of skin cells to UVA has been underestimated for many years, says Dr. Charareh Pourzand, Department of Pharmacy and Pharmacology at the University of Bath. For efficient protection against UVA-induced iron damage of skin, strong chelators are needed, but until now these risked toxic effects caused by non-targeted iron starvation of cells. Our mitochondria-targeted compound provides a solution to this problem and can address an unmet need in the skincare and sunscreen fields. This mitoiron claw is a highly effective compound, offering unprecedented protection against UVA-induced mitochondrial damage."

Now that the protective effects of the compound have been demonstrated the team - Dr. Charareh Pourzand and Dr. Olivier Reelfs from University of Bath and Professor Robert Hider and Dr. Vincenzo Abbate at Kings College London - plans further work to explore the potential of this new type of compound. This includes the possibility of developing therapies for diseases involving mitochondrial iron overload, such as Friedreich's ataxia. 

Looking for 100% chemical-free, all-natural nourishing face and body oils? Check out Earth & Elm Nourishing Face Oil and Earth & Elm Nourishing Body OilSubscribe to our Trusted Health Club newsletter for more information about natural living tipsnatural healthoral care, skincare, body care and foot care. If you are looking for more health resources check out the Trusted Health Resources list

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Founder Ray Spotts has a passion for all things natural and has made a life study of nature as it relates to health and well-being. Ray became a forerunner bringing products to market that are extraordinarily effective and free from potentially harmful chemicals and additives. For this reason Ray formed Trusted Health Products, a company you can trust for clean, effective, and healthy products. Ray is an organic gardener, likes fishing, hiking, and teaching and mentoring people to start new businesses. You can get his book for free, “How To Succeed In Business Based On God’s Word,” at www.rayspotts.com.


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