Description
Turner Syndrome (TS) is the most common X chromosome aneuploidy disorder in female, and the predominant karyotype is 45X, a complete loss of the second sex chromosome. Depending on the parental origin of the single X chromosome, 45X patients can be further divided into two groups: 45Xm and 45Xp with maternal and paternal inherited X chromosome, respectively. TS patients of 45Xm and 45Xp are found to associate with different severity in phenotype, including prevalence for cardiovascular disease.