29The Ultimate Guide to Red Light TherapyResearchers discovered that the light therapy influenced several key skin cells involved in healing.8Theseincluded cells on the skin‘s surface, as well as deeper cells that provide support. The light also seemed to helpimmune cells, which are important for cleaning up damaged tissue and fighting infection.Interestingly, the light appeared to work in two different ways to promotehealing.One method involved a protein called transforming growth factor8(TGF)-beta, while the other worked independently of this protein.β by using mice with a genetically altered version of this protein.In these mice, the light treatment couldn‘t activate the altered TGF-β or improve healing. This suggests thatthe natural form of TGF-β plays a key role in how light therapy helps burns heal.Finally, they tested the importance of TGF-82.3.5 RLT and VitiligoVitiligo is an autoimmune condition where skin loses its pigment, creating white patches. Treatment can bedifficult, but light therapy, using visible light, offers hope. This therapy can either restore color (repigmentation)or remove remaining pigment (depigmentation) with minimal side effects.9Researchers looked at hundreds of studies on using different types of visible light to treat vitiligo. They foundsome evidence that red light therapy, especially with a helium-neon (He-Ne) laser, might help repigment skin.9One research study looked at treating a specific type of vitiligo called segmental vitiligo, which affects onearea of the body, using He-Ne laser.9The red light seems to trigger pigment-making cells (called melanocytes)to move and multiply in two ways: directly by the light itself, and indirectly by making nearby skin cells releasegrowth factors.The researchers studied 30 people with segmental vitiligo on their head or neck. After an average of 16treatments with the He-Ne laser:60%9of people had over half (morethan50%)oftheir10%pigmentreturn.of people even had completerepigmentation(allpigmentreturned).A follow-up study with 40 patients using the same method showed similar results, with 60% of patients achievingover 50% repigmentation after about 17 sessions.9These findings suggest that He-Ne laser therapy could be apromising treatment for segmental vitiligo, particularly on the head and neck area.
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