Xiaolongbao is a type of steamed bun (baozi) (not to be confused with soup dumpling) from the Jiangnan region of China, especially associated with Shanghai and Wuxi. It is traditionally prepared in xiaolong, small bamboo steaming baskets,[1] which give them their name.
In some cases, tics may not be inherited; these cases are identified as sporadic Tourette syndrome (also known as tourettism) because a genetic link is missing. A person with Tourette syndrome has about a 50% chance of passing the gene(s) to one of his/her children. Gender appears to have a role in the expression of the genetic vulnerability, with males more likely to express tics than females.
Recent research suggests that a small number of Tourette syndrome cases may be caused by a defect on chromosome 13 of gene SLITRK1. Some cases of tourettism (tics due to reasons other than inherited Tourette's syndrome) can be caused by mutation. The finding of a chromosomal abnormality appears to apply to a very small minority of cases (1â2%).