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Biomedical subjects

R Benn

Publications and source records attributed to R Benn.

10 recordsLinked to original sources
PubMed1991

Serological typing of coagulase-negative staphylococci using monoclonal antibodies.

This investigation was to determine whether monoclonal antibodies (Mabs) could be used to differentiate coagulase-negative staphylococci (C-NS) at species and strain level. Mabs were produced to four Staphylococcus epidermidis strains, two S. haemolyticus strains, one S. saprophyticus strain and one S. warneri strain. A panel of nine antibodies was tested for species and strain specificity against five type strains and 65 clinical isolates of C-NS by enzyme-linked immunosorbent assay (ELISA). Species specificity was found with Mab D150 produced to one S. haemolyticus strain. Using Mab D150 and Mab D198 in conjunction, identification of 90% of S. haemolyticus isolates to species level was achieved. S. saprophyticus Mab K84 reacted with most other strains of C-NS tested but only three S. haemolyticus strains (16%). This finding provides further evidence that S. haemolyticus possesses different surface determinants to other C-NS which could form the basis of a typing scheme for S. haemolyticus using Mabs D150, D198 and K84.

Antibodies, Monoclonal↗
PubMed1991

The role of viruses and atypical organisms in the pathogenesis of adult pneumonia in Papua New Guinea.

The role of viruses and atypical organisms in pneumonia is well known in western populations, yet very little documentation is available about their role in pneumonia in developing countries. In a study of 175 adults with community-acquired pneumonia in Papua New Guinea, serological methods were used to assess this issue. Five patients had high influenza A titres suggestive of recent infection. Adenovirus titres rose significantly in one patient with Haemophilus influenzae pneumonia, whilst no evidence of past or recent infection was found in the remainder of patients when tested for all pathogens. Bacterial cultures revealed the continued predominance of Streptococcus pneumoniae in the pathogenesis of pneumonia in this population. We conclude that viruses and atypical organisms (including Mycoplasma and Legionella) play a very limited role in this setting.

Adenovirus Infections, Human↗
PubMed1979

Assessing the need for follow-up: the relationship of prognosis to posthospitalization adjustment.

Parents of children (N-64) hospitalized at a psychiatric hospital between the years 1971 and 1976 rated their child's adjustment in a number of behavioral areas. Problems in school, making friends, acting age-appropriately, and handling aggression were reported to be the major sources of difficulty for 40% of the former patients. No statistical relationship was found between clinicians' prognosis at discharge and children's post-hospitalization adjustment. The authors discuss some of the variables that mitigate against accurate outcome prediction and argue for the integration of an organized follow-up program into their treatment program.

Adolescent↗
PubMed1976

Complications of intravenous therapy.

A survey of 130 patients receiving intravenous therapy was undertaken. There were no instances of speticaemia over this period, despite a positive bacterial culture rate for cannulae of 48%. The incidence of phlebitis was 31%, and was associated with usual physicochemical factors. These included a cannulation time of greater than two days, an intravenous potassium supplement and antibiotics. Normal saline solutions given alone were associated with a lower incidence of phlebitis and continuous intravenous heparin administration may prolong the period of cannulation before phlebitis occurs. The institution of intravenous therapy teams should help to minimize the complications.

Anti-Bacterial Agents↗
PubMed1976

Hyperactives as young adults: preliminary report.

Thirty-five individuals aged 17 to 24 in whom severe chronic hyperactivity had been diagnosed 10 years before were studied together with 25 matched controls. There were no significant differences in mean height or weight or in electroencephalographic findings, but the mean pulse rate was significantly higher in the hyperactive group. Cognitive style tests indicated continued difficulty in reflection (resulting in more errors) but less impulsivity (longer reaction time) in the hyperactive individuals. Compared with controls, hyperactive subjects were continuing to have more scholastic difficulty, although this difference seemed to be less pronounced than 5 years before. Their adjustment in work situations and living arrangements did not differ significantly from that of the controls. Restlessness, both reported and observed, continued to be a problem for the hyperactive individuals, and socialization skills and sense of well-being continued to be poorer than in the controls. The hyperactive individuals did not show significantly more antisocial behaviour, nonmedical use of drugs or serious psychiatric disturbances.

Adolescent↗
PubMed1975

Erysipelothrix endocarditis.

This communication describes the second reported Australian case of erysipelothrix endocarditis; after treatment with penicillin, the patient survived. It also gives up-to-date summary and brief discussion of the literature.

Abattoirs↗