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Biomedical subjects

J G Sutherland

Publications and source records attributed to J G Sutherland.

4 recordsLinked to original sources

Hyperventilation: cause or effect?

A young person presenting with shortness of breath is common to the accident and emergency department. Usually this hyperventilation is anxiety related or a panic attack, but sometimes it can be caused by a serious underlying condition like pulmonary embolus. Acute shortness of breath in any patient should never be dismissed lightly. It is important to realise that pulmonary embolus can present without chest pain and with shortness of breath as the major symptom. Such patients can be distinguished by close attention to history and examination, risk factors for thromboembolic disease and the use of basic investigations (electrocardiogram, chest radiography and arterial blood gas analysis). A serious cause for shortness of breath must be excluded before labelling it as "hysteria" or "panic".

Acute Disease↗

Computerization of a nosocomial infection system.

This paper describes the implementation of a computerized nosocomial infection control system for a 500-bed tertiary-care teaching hospital. It is implemented on a minicomputer that uses the relational data base management system INGRES, which is marketed by Relational Technology, Inc. This system, which replaces a manual one that depended on "needle sort" data cards, is designed to provide for entry of infection data that have been collected onto abstracting forms; decision support in the prospective analysis of suspicious infection rates or trends; generation of monthly, on-demand, and annual infection rate reports; retrospective interrogation and analysis of infection data for rates and trends that may explain or clearly indicate the sources of in-hospital (nosocomial) infections; updating of infection records as additional infection-related data become available and known to the hospital's infection control team; and ad hoc analysis and comparisons between data on control and infected patients, both prospectively and retrospectively.

Computers↗

Studies on the nature of interaction between follicle-stimulating hormone and the testicular receptors.

Two previous reports from this laboratory showed that the binding of 125I-labeled human choriogonadotropin and 125I-labeled human luteinizing hormone to rat testicular receptors is partially irreversible and the binding parameters obtained from Scatchard analysis of the data can be drastically altered simply by changing the reaction volume of the binding assays (Chen, C.J.H., Lindeman, J.G., Trowbridge, C.G. and Bhalla, V.K. (1979) Biochim, Biophys. Acta 584, 407--435; Bhalla, V.K., Trowbridge, C.G., Chen, C.J.H., Lindeman, J.G. and Rojas, F.J. (1979) Biochim, Biophys. Acta 584, 436--453). It is reported herein that the binding reaction between follicle-stimulating hormone and testicular receptors displays very similar characteristics. The results support the previous conclusion that receptor concentrations fluctuate in the membranes and that the extent of their loss from tissue membranes in vitro is dependent upon time and temperature of incubation, the volume of buffer present, and the quantity of hormone used.

Animals↗