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We aimed to improve the understanding of genotype-phenotype correlations in Rett syndrome (RS) by adopting a novel approach to categorising phenotypic dimensions - separating typicality of presentation, outcome severity and age of onset - and by classifying MECP2 mutations strictly by predicted functional attributes. MECP2 mutation screening results were(More)
Recent studies have reported the presence of simian virus 40 (SV40) DNA sequences in approximately 40% of tumor samples from non-Hodgkin's lymphoma (NHL) patients from the United States. We examined a series of 259 tumor and blood samples, including 152 NHL samples, from patients in the U.K. with lymphadenopathy and lymphoid leukemia for the presence of(More)
Epidemiological evidence suggests that infection is involved in the etiology of common acute lymphoblastic leukemia, either by stimulating an inappropriate immune response or in the form of a classical transforming agent. In an attempt to elucidate the role that infection is playing in this disease, we used representational difference analysis (RDA) to(More)
There is epidemiological evidence that infection may play a role in the etiology of childhood leukemia in particular common B cell precursor acute lymphoblastic leukemia. A panel of 20 leukemic samples (panel 1) was examined for the presence of four lymphotropic herpesviruses using conventional molecular techniques. A second independent panel of 27 leukemic(More)
The Epstein-Barr virus (EBV) is associated with a proportion of cases of Hodgkin disease (HD) and this association is believed to be causal. Epidemiological studies suggest that an infectious agent is involved in the aetiology of young adult HD, however, cases in this age group are less likely to have EBV-associated disease than cases diagnosed in early(More)
The Epstein-Barr virus (EBV) is associated with a proportion of Hodgkin lymphoma (HL) cases, and this association is believed to be causal. The aetiology of cases lacking EBV in the tumour cells (EBV HRS-ve), which make up the majority of cases in western countries, is obscure. It has been suggested that EBV may also cause these tumours by using a(More)
Epidemiological evidence suggests that childhood leukaemia, and possibly common acute lymphoblastic leukaemia in particular, may have an infectious aetiology. Smith (1997 J Immunother 20: 89-100) recently suggested that the critical infectious event occurs during pregnancy, and identified the polyoma virus JC as a candidate agent. In the present study we(More)
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