Marfan syndrome is inherited in an autosomal dominant pattern. It involves the mutation of the FBN1 or fibrillin-1 gene, a so-called dominant gene, and so only one copy of the mutated gene will produce the syndrome in offspring.Know More
Marfan syndrome affects the connective tissue of the body, rendering them weaker and more flexible than typical. It can result in a number of health problems including impaired vision as the lenses become dislocated or weak heart valves, causing irregular heartbeat, shortness of breath and more.
An individual carrying this dominant gene has a 50 percent chance of passing it along to their offspring. It is estimated that approximately 25 percent of Marfan syndrome cases are caused by a new, spontaneous mutation and not by inheritance of the faulty gene.Learn more about Conditions & Diseases
According to Mayo Clinic, Down syndrome occurs in three variations and is caused by additional genetic material from chromosome 21. Cell division errors cause the chromosome abnormalities. The majority of Down syndrome cases, approximately 95 percent, are trisomy 21, which results from three copies of chromosome 21 instead of two copies.Full Answer >
According to the National Institute of Neurological Disorders and Stroke, Asperger's syndrome is a form of autism that is expressed through speech and language difficulties and repeated behavior patterns. It is a neurological disease that can be diagnosed during early childhood development, usually by age 2 if testing is done, although many children are not diagnosed until they begin to socialize with other children.Full Answer >
According to Mayo Clinic, serotonin syndrome occurs when a patient takes medications that cause high levels of the chemical serotonin to accumulate in the body. Serotonin syndrome likely occurs if a new medication is prescribed or can be attributed to the use of illegal drugs and dietary supplements.Full Answer >
Viral syndrome refers to a suite of symptoms associated with viral illnesses, such as coughing, congestion, a sore throat, gastrointestinal distress and a fever, according to the University of Minnesota. Viruses create a number of different symptoms, which differ in severity and duration depending on the virus causing the infection and the type of illness. Some illnesses, such as the cold and common flu, produce symptoms that typically resolve quickly while others require extensive treatment.Full Answer >