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Biomedical subjects

R P Bendall

Publications and source records attributed to R P Bendall.

13 recordsLinked to original sources

Partial sequence analysis of indigenous hepatitis E virus isolated in the United Kingdom.

The first nucleotide sequences of hepatitis E virus (HEV) acquired in the United Kingdom are described. The sequences are novel and are related most closely to HEV isolated from Greece (Greece 2 strain), consistent with their having been derived from an indigenous European virus. HEV was assumed until recently to be rare in the United Kingdom and other industrialised countries and, consequently, hepatitis E may be under-diagnosed in industrialised countries.

Genotype↗

Restriction fragment length polymorphism analysis rules out cross-infection among renal patients with tuberculosis.

A cluster of five cases of tuberculosis occurred on a renal unit in 1993. The initial impression was that this was an outbreak, and cross-infection was suspected. Restriction fragment length polymorphism analysis was carried out on the strains of Mycobacterium tuberculosis isolated from these cases, using a DNA probe directed against the insertion sequence IS6110. DNA fingerprints obtained by this method differed for all the strains tested, ruling out cross-infection as a cause of the outbreak. This technique is a useful adjunct to standard epidemiological investigations in outbreaks of tuberculosis.

Adult↗

Cyclospora cayetanensis infection in patients with and without AIDS: biliary disease as another clinical manifestation.

We describe patients with and without AIDS who had Cyclospora cayetanensis infection; these patients were seen at a tertiary care teaching hospital in Mexico City because of diarrheal disease. C. cayetanensis was detected by examination of fresh fecal preparations and acid-fast staining of fecal smears; the presence of other bacteria and parasites was excluded by standard methods. Fecal specimens from 12 patients contained C. cayetanensis. The overall mean duration of illness was 94 days. Seven of the 12 patients had AIDS; these patients presented with more weight loss than did patients without AIDS (P = .04). The patients with AIDS also tended to have a more prolonged illness. Two patients with AIDS had biliary disease that resolved when they received therapy with trimethoprim-sulfamethoxazole for cyclospora infection; the excretion of oocysts also ceased. Our data confirm that C. cayetanensis causes diarrhea in humans and a significant weight loss in patients with AIDS. In addition, Cyclospora could be involved in biliary disease in patients with AIDS.

AIDS-Related Opportunistic Infections↗

Diarrhoea associated with cyanobacterium-like bodies: a new coccidian enteritis of man.

Faecal excretion of cysts known as cyanobacterium-like bodies (CLB) is associated with a diarrhoeal illness, which is often prolonged and severe. It is seen mainly in travellers and immunocompromised patients. Recently these cysts have been shown to be coccidian oocysts. We describe three patients who developed diarrhoea while travelling abroad. Stool samples from all three patients contained CLB. Jejunal aspirates from two patients also yielded CLB. Conventional histology of jejunal biopsy specimens confirmed that two patients had enteritis. Electronmicroscopy of the same biopsy specimens revealed intraepithelial coccidia. These findings suggest that the small bowel is the site of infection of this new coccidian disease.

Adult↗