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Noonan syndrome is the second most common syndromic cause of congenital heart disease. 50-70% of individuals with NS are born with some form of congenital heart defect, with pulmonary valvular stenosis being the most common (50–60%). [9]
The following is a list of genetic disorders and if known, type of mutation and for the chromosome involved. Although the parlance "disease-causing gene" is common, it is the occurrence of an abnormality in the parents that causes the impairment to develop within the child. There are over 6,000 known genetic disorders in humans.
Jacqueline Anne Noonan (October 28, 1928 – July 23, 2020) was an American pediatric cardiologist best known for her characterization of a genetic disorder now called Noonan syndrome. [ 1 ] [ 2 ] She was also the original describer of hypoplastic left heart syndrome .
Noonan syndrome with multiple lentigines (NSML) which is part of a group called Ras/MAPK pathway syndromes, [2] is a rare autosomal dominant, [3] multisystem disease caused by a mutation in the protein tyrosine phosphatase, non-receptor type 11 gene . The disease is a complex of features, mostly involving the skin, skeletal and cardiovascular ...
These conditions are Apert syndrome, Crouzon syndrome, Pfeiffer syndrome, achondroplasia, thanatophoric dysplasia, multiple endocrine neoplasia type 2, and multiple endocrine neoplasia type 2b. [11] The most significant effect concerns achondroplasia (a form of dwarfism ), which might occur in about 1 in 1,875 children fathered by men over 50 ...
The metabolic syndrome is the co-occurrence of metabolic risk factors for type 2 diabetes and cardiovascular disease (abdominal obesity, hyperglycemia, dyslipidemia, and hypertension). The prevalence of the metabolic syndrome increases with age reaching close to 50% of people over 60 years old in the USA. [40] as
The mean age of onset of ischemic episodes is approximately 46 years (range 30–70). A classic lacunar syndrome occurs in at least two-thirds of affected patients while hemispheric strokes are much less common. It is worthy of note that ischemic strokes typically occur in the absence of traditional cardiovascular risk factors.
Myotonic dystrophy (DM) is a genetic condition that is inherited in an autosomal dominant pattern, meaning each child of an affected individual has a 50% chance of inheriting the disease. The mutation involves satellite DNA , which is tandemly repeated sequences of DNA that do not code for a protein.