Carbon-13 magnetic resonance. XVII. Pyrimidine and purine nucleosides.
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Biomedical subjects
Publications and source records attributed to A J Jones.
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The natural-abundance carbon-13 nuclear magnetic resonance spectra of the naturally occuring pyrimidine and purine nucleosides have been determined and completely analyzed. The carbon-13 chemical shifts obtained provide information on the electronic structure and qualitatively at least correlate well with the known chemical reactivity of these molecules. The carbon-13 shifts are in general far more informative than proton shifts for structural analysis of the nucleosides.
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The presenting complaint in 100 consecutive patients attending the psychosexual session (PSS) attached to the Department of Genitourinary Medicine (GUM) in St Thomas's Hospital was compared with 100 consecutive patients seen at a community PSS attached to a family planning clinic in an outer London district. Patients attending the GUM PSS had a greater fear of infection and more relationship problems, but less erectile failure and loss of libido; there was also a higher proportion of men referred and more patients with no regular partner than in the community PSS. It is concluded that many patients with psychosexual problems sought help from the GUM clinic.
Acute aortic dissection is a surgical emergency which, if not adequately treated, carries a high mortality. With appropriate early intervention, however, a significant percentage of patients can be salvaged. This article discusses how to approach and manage this condition.