Published in the June 16, 2003 issue of the journal Molecular Psychiatry, the findings indicate that a mutation in a gene that regulates sensitivity to brain neurotransmitters such as dopamine, causes bipolar disorder in as many as 10 percent of bipolar cases.
Dermographism is a condition in which people will experience a wheal reaction after the skin is rubbed or touched in a way that produces a response. In some people, the reaction can burn, sting, and even itch.For others, it may not hurt at all, and only provides a cosmetic embarrassment.ermographism pictures and images like the one below show how the skin forms a wheal on its surface after being stroked or rubbed with a rigid object. Notice how the letters and numbers are very distinct, which is where the term âskin writing diseaseâ getâs its name.
Media Gallery. Dermographism or skin writing on forearm. Appearance of the word Dermatographia on a human arm 15 minutes after the letters have been traced with a blunt object on the skin. A type of urticaria or hives, also known as dermatographic urticaria, dermatographism, or skin writing. Dermographism urticaria.