Powerpoint skin colour_and_vitiligo
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  • http://satta1118.files.wordpress.com/2007/10/dark-skin-light-skin-pic_edited-3.jpg
  • http://www.ccs.k12.in.us/chsBS/kons/kons/melanocyte.png
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  • http://jimcofer.com/personal/wp-content/uploads/2007/12/vitiligo.jpg http://1.bp.blogspot.com/_JeSqlMgBcyY/SCX1mTXwBII/AAAAAAAABcM/uFalEICwKOU/s400/Desiree_Vitiligo_080327_mn.jpg
  • http://www.goldenalbinism.com/Jackson.jpg

Powerpoint skin colour_and_vitiligo Powerpoint skin colour_and_vitiligo Presentation Transcript

  • An introduction to skin colour and the skin condition vitiligo The Science Behind Skin Colour © Changing Faces 2009 Registered Charity No. 1011222 Charity registered in Scotland SC039725
  •  There are so many different shades of skin colour.  Have you ever wondered why others have lighter or darker complexion than you?
  •  What are Melanocytes?  Melanocytes are special cells in our skin that specialize in making a molecule called melanin.  What is Melanin?  Melanin is something called a pigment, which is the molecule that gives our skin colour a darker shade. View slide
  •  What does melanin actually do?  Melanin protects our skin from the damaging Ultraviolet (UV) rays from the sun.  Going sun tanning induces your body to produce more melanin, which is why people who return from tanning look darker.  More melanin in the skin is the reason why people who are darker usually do not get sunburned. View slide
  •  In our skin, we all have around the same number of melanocytes, which are the cells that produce melanin.  However, the melanocytes in each of our bodies produce different amounts of melanin.  The more melanin you have in your skin, the darker your skin colour will be.
  • Which of these two men has more Melanin in his skin?? Which has more melanocytes??
  • Which of these two women has more Melanin in his skin?? Which has more melanocytes??
  •  Vitiligo  It is a skin condition that can manifest after birth at any point in someone’s life.  It leads to death or loss of function of the melanocytes in the body, which leads to the inability to produce any more melanin in the skin.  Vitiligo is very visible on someone with a very dark complexion due to the prevalence of white splotches of skin. Vitiligo: Melanin Related Condition
  • It usually usually starts out in small, isolated patches, but can spread all over the body. The rate of which the patches spreads across the body varies from person to person.
  • • Michael Jackson is a prominent celebrity who is rumored to have had vitiligo. • He supposedly always wore a lot of masking/ camouflage make-up in photos and in videos in order to mask the patches in his skin. • Do you think he had vitiligo? Why or Why not?
  •  How is the Vitiligo acquired?  Scientists are not sure, but think there are several factors that can lead to it including genetic, and environmental factors.  Is it contagious?  No, you can not get it from being around, or touching someone who has it.  Does it hurt?  No, the process does not involve any physical pain, although many people who have it may go through some emotional problems due to their appearance.  Is there a cure?  No there is not a cure, but there are treatments to reduce the effects of the condition. Many people wear make up in order to mask the white patches on their skin.