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Henry Turner. Turner syndrome (TS), also known as 45,X, or 45,X0, is a genetic disorder in which the patient's cells have only one X chromosome or are partially missing an X chromosome (sex chromosome monosomy) leading to the complete or partial deletion of the pseudoautosomal regions (PAR1, PAR2) in the affected X chromosome. [2][6][7] Most ...
Trisomy X, also known as triple X syndrome and characterized by the karyotype [note 1] 47,XXX, is a chromosome disorder in which a female has an extra copy of the X chromosome. It is relatively common and occurs in 1 in 1,000 females, but is rarely diagnosed; fewer than 10% of those with the condition know they have it.
Turner syndrome is the most common sex chromosome-related inherited diseases in female around the world, with the incidence of 1 in 2000 live female births. [55] One of the significant pathological features is the premature ovarian failure, leading to amenorrhea or even infertility.
1 per 5,000 births [3] Trisomy 18, also known as Edwards syndrome, is a genetic disorder caused by the presence of a third copy of all or part of chromosome 18. [3] Many parts of the body are affected. [3] Babies are often born small and have heart defects. [3] Other features include a small head, small jaw, clenched fists with overlapping ...
Noonan syndrome (NS) is a genetic disorder that may present with mildly unusual facial features, short height, congenital heart disease, bleeding problems, and skeletal malformations. [1] Facial features include widely spaced eyes, light-colored eyes, low-set ears, a short neck, and a small lower jaw. [1]
The existence of genes along the inactive X which are not silenced explains the defects in humans with abnormal numbers of the X chromosome, such as Turner syndrome (X0, caused by SHOX gene [43]) or Klinefelter syndrome (XXY). Theoretically, X-inactivation should eliminate the differences in gene dosage between affected individuals and ...
Stephanie Turner (1993 [31] – 2017 [32]) third oldest in the US with the same condition, and the first ever to give birth. Turner's two children do not have the disease. She died on March 3, 2017, at age 23. [33] Mason van Dyk (born 2013), despite being given a life expectancy of one to five days, is 10 years old as of January 2024. [34]
In patients with Turner syndrome (TS), treatment formulations differ. The initiation dose is a fraction of the adult dose in most cases but this can also differ between different formulations available. In females, doses are started low and slowly titrated up over years. [23]