Simon N Jowitt

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Human marrow stromal cells (MSCs) can be isolated from bone marrow and differentiate into multiple tissues in vitro and in vivo. These properties make them promising tools in cell and gene therapy. The lack of a specific MSC marker and the low frequency of MSCs in bone marrow necessitate their isolation by in vitro expansion prior to clinical use. This may(More)
Vaccination against influenza and Streptococcus pneumoniae is recommended for elderly and immunocompromised individuals. However, there is little information concerning the efficacy of vaccination in specific groups of patients. In this study, 52 patients underwent vaccination against influenza, S. pneumoniae and Haemophilus influenzae type b (Hib) as they(More)
Experimental work in animal models suggests that the course of systemic and organ-specific autoimmune disorders can be modified by allogeneic bone marrow transplantation (BMT). We describe two patients, each with a long history of psoriasis and ulcerative colitis, who received an allogeneic BMT for leukaemia. Four years post-BMT, they remain in full(More)
The Chuvash form of polycythemia is an autosomal recessive disorder common to a large number of families in central Russia. Affected individuals have been reported to be homozygous for an Arg200Trp mutation in the von Hippel-Lindau (VHL) gene. We have screened 78 patients with erythrocytosis and found 8 of Bangladeshi and Pakistani origin to be homozygous(More)
Phytosterolaemia (sitosterolaemia) is a recessively inherited metabolic condition in which the absorption of both cholesterol and plant-derived cholesterol-like molecules at the gut is unselective and unrestricted. In haematology, Mediterranean stomatocytosis or Mediterranean macrothrombocytopenia is a poorly understood haematological condition that(More)
Visceral leishmaniasis (VL) is a well recognized opportunistic infection in patients with HIV-1 infection, which may occasionally present with atypical features. We describe two patients with advanced HIV-1 infection (CD4<100/ mm3) in whom visceral leishmaniasis presented with atypical features, and their response to therapy. Atypical features of visceral(More)
Clonal haemopoiesis has previously been demonstrated in some 30% of patients in remission of acute myeloid leukaemia (AML). Whilst a 'clonal remission' in many such patients may represent a skewed X-chromosome inactivation pattern in haemopoietic cells, its relationship to an underlying preleukaemic state remains uncertain. We therefore analysed the clonal(More)