Batten disease is a rare, fatal, autosomal recessive neurodegenerative disorder that begins in childhood. Also known as Spielmeyer-Vogt-Sjogren-Batten disease, it is the most common form of a group of disorders called neuronal ceroid lipofuscinosis (or NCLs).
Although Batten disease is usually regarded as the juvenile form of NCL (or "type 3"), some physicians use the term Batten disease to describe all forms of NCL.
It is associated with the CLN3 protein.
Over time, affected children suffer mental impairment, worsening seizures, and progressive loss of sight, speech and motor skills. Eventually, children with Batten disease become blind, bedridden, and demented. Batten Disease is a life limiting disease, life expectancy varies depending on the type or variation.
Batten disease is inherited in an autosomal recessive pattern. The mutation causes the buildup of lipofuscins in the body's tissues. These substances consist of fats and proteins and form certain distinctive deposits that cause the symptoms and can be seen under an electron microscope. The diagnosis of Batten disease is based on the presence of these deposits in skin samples as well as other criteria. Six genes have now been identified that cause different types of Batten disease in children or adults, more having yet to be identified. Two of these genes encode enzymes. The function of most of these genes is still unknown. The identification of these genes opens up the possibility of gene replacement therapy or other gene-related treatments.
In October 2005, the FDA approved the transplantation of fetal neuronal cells into the brains of children suffering from Infantile and Late Infantile versions of Batten disease. The cells, which are immature and in an early stage of development, are derived from aborted and miscarried fetuses and will be injected into the patient's brains. To avoid rejection of these foreign cells, the immune system of the patients has to be suppressed.
In November 2006, neurosurgeon, Dr. Nathan Selden, pediatrician, Dr. Robert Steiner, and colleagues at Doernbecher Children's Hospital at Oregon Health & Science University began a clinical study in which purified neural stem cells were injected into the brain of a six year old child suffering from Batten disease, who had lost the ability to walk and talk. This patient was the first of six to receive the injection of a stem cell product from StemCells Inc., a Palo Alto biotech company. These are believed to be the first-ever transplants of fetal stem cells into the human brain. By early December, the child had recovered well enough to return home and it was reported that there were some signs of speech returning.
Rare disease fosters the agony of isolation; With few to share with, victims' parents find their search for resources difficult.(VARIETY)
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