title: Chronic progressive myelopathy associated with elevated antibodies to human T-lymphotropic virus type I and adult T-cell leukemialike cells.
abstract: Six adult patients had a chronic progressive myelopathy that possessed the following features: high antibody titers to human T-lymphotropic virus type I (HTLV-I) in serum and cerebrospinal fluid (CSF); predominantly upper motor neuron disorder, symmetrical, with mild sensory and bladder disturbances; and presence of adult T-cell leukemia-like cells in both peripheral blood and CSF. We refer to this entity as HTLV-I-associated myelopathy (HAM). Electrophoretic studies of immunoglobulin G in CSF using Western blot analysis characteristically demonstrated p24 and p32 bands. Rates of intra-blood-brain barrier synthesis were determined and found increased in the patients with HAM. Corticosteroid treatment produced clinical improvement in all of 4 patients. A retrospective survey of CSF samples was carried out in 287 patients with neurological disorders, and 6 additional patients with HAM were identified.
mesh_terms: D000305:Adrenal Cortex Hormones / Q000627:therapeutic use; D000914:Antibodies, Viral / Q000032:analysis* / Q000134:cerebrospinal fluid; D001812:Blood-Brain Barrier; D002908:Chronic Disease; D017977:Deltaretrovirus / Q000276:immunology*; D006800:Deltaretrovirus Infections / Q000150:complications / Q000473:pathology*; D006801:Humans; D007074:Immunoglobulin G / Q000096:biosynthesis; D013118:Spinal Cord Diseases / Q000188:drug therapy / Q000209:etiology / Q000276:immunology* / Q000473:pathology
chemical_list: D000305:Adrenal Cortex Hormones; D000914:Antibodies, Viral; D007074:Immunoglobulin G