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Leukodystrophy is characterized by specific symptoms, including decreased motor function, muscle rigidity, and eventual degeneration of sight and hearing. While the disease is fatal, the age of onset is a key factor, as infants have a typical life expectancy of 2–8 years, while adults typically live more than a decade after onset.
Leukoencephalopathy with neuroaxonal spheroids (LENAS), also known as adult-onset leukoencephalopathy with axonal spheroids and pigmented glia (ALSP), hereditary diffuse leukoencephalopathy with spheroids (HDLS) and pigmentary orthochromatic leukodystrophy (POLD) [1] is an extremely rare kind of leukoencephalopathy and is classified as a neurodegenerative disease.
Related disorders in the same disease spectrum as HDLS include Nasu-Hakola disease (polycystic lipomembranous osteodysplasia with sclerosing leukoencephalopathy), and a type of leukodystrophy with pigment-filled macrophages called pigmentary orthochromatic leukodystrophy (POLD). [3] In addition to white matter disease, Nasu-Hakola causes bone ...
Children with the juvenile form of MLD (onset between 3 and 10 years of age) usually begin with impaired school performance, mental deterioration, and dementia, then develop symptoms similar to the late infantile form but with slower progression. Age of death is variable, but normally within 10 to 15 years of symptom onset.
Progressive multifocal leukoencephalopathy (PML) is a rare and often fatal viral disease characterized by progressive damage (-pathy) or inflammation of the white matter (leuko-) of the brain (-encephalo-) at multiple locations (multifocal). It is caused by the JC virus, which is normally present and kept under control by the immune system. The ...
The one-time therapy, branded as Lenmeldy in the U.S., is approved for children in certain stages of disease progression, the Food and Drug Administration (FDA) said. US approves first gene ...
The presence of frontal and temporal subcortical cysts is the main factor when diagnosing a patient with this disease. [11] In the late stages of the disease, patients have been noted to develop impaired coordination, overresponsive reflexes, and even seizures. MRI testing is used to study and diagnose patients with this disease.
One of the difficulties with ALD as a disease included in universal newborn screening is the difficulty in predicting the eventual phenotype that an individual will express. The accepted treatment for affected boys presenting with the cerebral childhood form of the disease is a bone marrow transplant, a procedure which carries significant risks.