The "Cat Cry Syndrome", Its Causes and Consequences
The "Cat Cry Syndrome", Its Causes and Consequences Cat Cry or Cri du Chat Syndrome literally means "cry of the cat" in French. It was named for the cat-like cry made by infants who have the disorder. The consequences for the disorder are many and extremely wide ranged. It mostly occurs in children and is entirely random when choosing its victims. Cat Cry Syndrome occurs when the short or "p" arm of chromosome 5 is missing. The cry is causes by an abnormal development of the larynx. About 50-60 children in the United Stated are born with the syndrome each year. The chromosome deletion is sporadic, so it's not hereditary and it happens randomly. The deletion size can vary from the terminal band 5p15 to a larger segment. Sometimes it can even go as far as the Centro mere and the 5q11 proximal long arm band. Most cases are pa
Some times the deletion can not be seen in this way. There are also ongoing studies and experiments to find out more about the disorder and ways to cure it. Unfortunately a degree of mental retardation occurs in all patients. Unfortunately there is currently no cure for the Cat Cry Syndrome, however there is treatment and therapy the patient can under go. 2 The consequences of having Cri du Chat Syndrome can be many. Some other characteristics of Cat Cry Syndrome are small head size (microcephaly), low-set nipples, bilateral clinodactyly of the 5th digits, behavioral problems, poor muscle tone (hypotonia), language difficulties, delayed motor skill development, attention deficit hyperactivity disorder (ADHD), hyperactivity, inattention, aggressive behavior, and self-injurious behavior. For those cases a technique that detects very small deletions is used. The disorder also causes unusual facial features including; a prominent nose, epicanthal folds, asymmetrical facial contour, and low-set ears. If the syndrome is suspected, the patient will under go chromosome analysis called Karyotyping. Due to some of these compilations there is a 10% mortality rate during infancy, however if controlled the patient can have a normal life span. ternal in origin and caused by de novo deletions. In infancy, hearing the cry is a good indicator that a child has the disorder. Some of these can change during childhood. Karyotyping is a laboratory procedure in which chromosomes are separated from cells, stained and arranged so that their structure can be studied under the microscope. The cry becomes less noticeable as children get older, making it more difficult to diagnose.
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