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Salt and pepper developmental regression syndrome, also known as Amish infantile epileptic syndrome [4] or GM3 deficiency syndrome, [5] is a rare autosomal recessive progressive neurological disorder characterized by developmental delay, severe intellectual disability, seizures, and skin pigmentation irregularities.
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.
Genetic testing methods such as fluorescence in situ hybridization (FISH) and chromosomal microarray are available for diagnosing Dup15q syndrome and similar genetic disorders. With the increase in genetic testing availability, more often duplications outside of the 15q11.2-13.1 region are being diagnosed.
Family sharing. The implications of genetic test results for other family members are important to consider in patients considering elective genetic testing. Unlike most other medical tests, genetic testing may reveal health information about the patient as well as his or her family members. [51]
Unlike many other types of intellectual disability, the genetics of these conditions are relatively well understood. [2] [3] It has been estimated there are ~200 genes involved in this syndrome; of these ~100 have been identified. [4] Many of these genes are found on the short 'p' arm of the chromosome, and duplications at Xp11.2 are associated ...
Southern Ohio Medical Center (or SOMC) is a 216-bed 501(C)(3) not-for-profit hospital in Portsmouth, Ohio. It provides emergency and surgical care, as well as other health care services. SOMC employs 2,600 full-time employees and part-time employees, has a medical staff of more than 140 physicians and specialists , and is supported by ...
Fragile X syndrome (FXS) is a genetic neurodevelopmental disorder characterized by mild-to-moderate intellectual disability. [1] The average IQ in males with FXS is under 55, while about two thirds of affected females are intellectually disabled.
This disorder is inherited in an autosomal recessive manner, which means the causative gene is located on an autosome, and two defective copies of the gene – one from each parent – are required to inherit the disorder. The parents both carry one pathogenic variant; however, they are not affected by the disorder.