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Noonan syndrome is an autosomal rife genetical disorder , in which the growth and development of many physical structure parts are affected due to mutations in one or many factor . Noonan syndrome is a very rare disorder.(1 )
Is Noonan Syndrome Recessive Or Dominant?
Noonan syndrome is an autosomal dominant disorder . It mean that one band of the altered gene in each cell is enough to cause the disorder . It is a inborn disorder , which means it is plain at birth.(1)This term may be inherited by a person from his or her parents or may develop as a entirely new mutation during the stages of other development.(2 )
Noonan syndrome is restricted as a eccentric of RASopathy , which means there is a job with the prison cell signaling pathway.(2)Signs and symptoms of Noonan syndrome vary immensely among citizenry . These may range from extremely mild to extremely severe . Also , characteristics or symptom may be related to the case of gene affected . These mark and symptom may include.(1 )
Abnormal Facial Features- Facial features are one of the most significant key to identify Noonan syndrome . However , these features may be more obvious in infants and unseasoned kids and may become subtle as they arrive at adulthood . These features may include-
Heart Conditions:
Children involve with Noonan syndrome are normally support with some manikin of congenital heart disease . This form some of the important sign and symptom of Noonan syndrome . Some bosom job evidence themselves later in the life of a child affected by Noonan syndrome . Some common heart problems associated with Noonan syndrome are-
Valve disorder like pulmonary valve stenosis , thickener of the pump muscle or hypertrophic cardiomyopathy , morphologic defects of warmheartedness like a ventricular septate defect or a hole in the heart , pulmonary arteria stenosis and constriction of the aorta . There may also be arrhythmia or irregular heart calendar method , which may or may not be assort with a geomorphologic centre defect
Growth Problems:
Noonan syndrome changes the way a child grows . Many nipper affect by this condition do not produce at a normal charge per unit . They may face problem like-
Musculoskeletal Problems - Some of the most usual musculoskeletal problem are abnormally shaped chest , sunken or leaven breastbone , inadequate neck , web neck , spinal disfigurement , etc .
Learning Disabilities - Most people with Noonan syndrome have insensible intelligence . However , some may face modest learning and intellectual disabilities
Bleeding - Excessivebleedingand bruising may be project due to a scurvy thrombocyte count or clotting defects
Lymphatic Problems - Lymphatic system may be compromised and there may be an extra collection of fluid throughout the soundbox
Genital And Kidney Problems - Genitals and kidney problems may be common , especially in males.(1 )
Conclusion
Noonan syndrome is an autosomal dominant disorder . It is an extremely rare disorder and affects the citizenry of all subspecies and sexes evenly .
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