Molecular mechanisms of persistent infection of subacute sclerosing panencephalitis(SSPE) viruses.

Hemagglutinin-specific neutralization of subacute sclerosing panencephalitis viruses

Subacute sclerosing panencephalitis (SSPE) is a progressive, lethal complication of measles caused by particular mutants of measles virus (MeV) that persist in the brain despite high levels of neutralizing antibodies. We addressed the hypothesis that antigenic drift is involved in the pathogenetic mechanism of SSPE by analyzing antigenic alterations in the MeV envelope hemagglutinin protein (Me...

Matrix protein of cell-associated subacute sclerosing panencephalitis viruses.

The nucleotide sequence has been determined for the matrix (M) protein gene of three strains, Niigata-1, ZH and Biken, of cell-associated subacute sclerosing panencephalitis (SSPE) virus. The M proteins of the Niigata-1 and ZH strains were found to terminate prematurely as a result of nonsense mutations at nucleotide positions 68 and 96 respectively. On the other hand it was predicted that the ...

Subacute Sclerosing Panencephalitis in Iran

CT of subacute sclerosing panencephalitis.

Subacute sclerosing panencephalitis is a progressive, frequently fatal slow virus infection of the brain attacking children and young adults and caused by measles virus. Computed tomography (CT) of the brain in 15 patients with this disease was normal in seven and abnormal in eight. CT demonstrated varying degrees of cortical atrophy associated with focal and multifocal low density lesions of t...

[Subacute sclerosing panencephalitis].

Subacute sclerosing panencephalitis is a slowly progressive neurodegenerative disorder occurring in childhood and adolescence and is characterised by dementia, ataxia, myoclonias and other neurological focal signs, with an invariably fatal outcome. The author reviews the subject, focussing on epidemiology, clinical features, measles virus behaviour, host immune reactions, measles prophylaxis an...