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Poliosis circumscripta, commonly referred to as a "white forelock", is a condition characterized by localized patches of white hair due to a reduction or absence of melanin in hair follicles. Although traditionally associated with the scalp, poliosis can affect any hairy area on the body, including eyebrows, eyelashes, and beards.
Uncombable hair syndrome 3 is caused by a defect in the PADI3 gene (peptidylarginine-deiminase 3) and is located on chromosome 1. This defect apparently is the most common cause of UHS. [4] The PADI3 gene provides instructions for creating an enzyme called peptidylargine deiminase 3.
Canities subita, also called Marie Antoinette syndrome or Thomas More syndrome, is an alleged condition of hair turning white overnight due to stress or trauma. [1] The trivial names come from specific cases in history including that of Queen Marie Antoinette of France whose hair was noted as having turned stark white overnight after her capture following the ill-fated flight to Varennes ...
A derm explains why hair can start turning gray early, specifically in your 20s. This is largely due to genetics but it can be stress, health, or other factors.
Greying of hair; Other names: Greying, graying, canities, achromotrichia: A 41-year-old man with partially grey hair: The same man at age 56, with fully grey hair: Symptoms: Loss of pigmentation in the hair. Complications: Psychological distress: Causes: Aging, someone can have it naturally. Treatment: Accepting the condition, medications
As hair pigmentation is a result of complex interaction between various genetic factors, it is thought that premature greying could be due to exhaustion of melanocyte's capability to produce hair pigmentation. [1] Premature canities may occur alone as an autosomal dominant condition or in association with various autoimmune or premature aging ...
A study links graying hair to stem cells getting stuck, unable to color new hair growth. And here's the good news: That might mean gray hair is reversible.
Menkes disease (MNK), also known as Menkes syndrome, [1] [2] is an X-linked recessive disorder caused by mutations in genes coding for the copper-transport protein ATP7A, [3] leading to copper deficiency. [4] [5] Characteristic findings include kinky hair, growth failure, and nervous system deterioration. Like all X-linked recessive conditions ...