Skin Pigment in Elderly
Transcript of Skin Pigment in Elderly
• a material that changes the color of reflected
or transmitted light . It’s found on Epidermis
Melanin is an example of pigment in human skin
• It’s produced by cells called .
• these cells manufacture melanin from an amino acid, tyrosin, with the help of an enzyme, tyrosinase .
protection against skin damage from the
sun .
Aging skin is a fact of life. As people getting older , Skin layers changedaccording to many factorssuch as exposure to sunlight and hormones level .
• " Increase in pigment "
• Darkening of an area of skin caused by theoverproduction of pigment or melanin .
• Types of Hyperpigmentation
• Liver-spot
• Melasma
• Solar Lentigenes " liver spots " pigmented flat spot on sun-exposed skin in older adults, especially on the back of the hands and on the forehead .
• Melasma Pigmentation of the cheeks of the face . caused by hormonal changes . appear after the age of 40 as the skin is less able to re-grow
• "decrease in pigment"
• Occurs when the skin cells lose pigment and become whiter .
•Vitiligo
• Tinea versicolor.
• Vitiligo a Condition that causes depigmentation of parts
of the skin. It occurs when melanocytes, the cells responsible
for skin pigmentation, die or are unable to function .
• Tinea versicolor (also known Tinea flava) is a
condition characterized by a rash on the trunk and proximal
extremities
• REFRENCES
• Anatomy & physiology in health and illness , By Ross &
Wilson, British Library ,11th edition , 2011
• Wheater's Functional histology , By Young and heath ;
churchil livingstone , 5th ed .
• James, William D.; Berger, Timothy G.; et al. (2006).
Andrews' Diseases of the Skin: clinical Dermatology.
Saunders Elsevier
• ADAM education Solution .