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Biomedical subjects

C R Thompson

Publications and source records attributed to C R Thompson.

87 records · Page 5Linked to original sources
PubMed1966

Site of fluoride accumulation in navel orange leaves.

Fluoride-polluted navel orange leaves, Citrus sinensis (Linn.) Osbeck, were fractionated into the subcellular components in hexane/carbon tetrachloride mixtures having various densities. Fluoride was determined at each fraction. Analyses were also made for the subcellular distribution of chlorophyll, nitrogen, and DNA to assess the extent of cross-contamination of each component. The fraction containing cell wall, nuclei, and partly broken cells apparently contained a major amount of fluoride. However, if allowance was made for the cross-contamination of chloroplasts and chloroplast fragments, the fraction of chloroplasts was found to be the site of the highest fluoride accumulation. When each particulate component was washed with water after drying, the combined washings contained more than 50% of the total fluoride of the isolated fractions. The usual method of subcellular fractionation with aqueous solvent shifted the major site of fluoride accumulation from the fraction of chloroplasts to that of the supernatant.

Chloroplasts↗
PubMedDate not supplied

Conservative management of mitral valve aneurysm.

A 35-year-old woman had infective endocarditis and an aneurysm of the anterior mitral leaflet. The patient was managed conservatively and the mitral valve aneurysm remained stable over 3 years. Two-dimensional, color flow Doppler, and magnetic resonance images of the aneurysm are presented and features of mitral valve aneurysms are discussed. Conservative management of mitral valve aneurysms with careful follow-up is an acceptable approach.

Adult↗
PubMedDate not supplied

Embolic occlusion of a patent foramen ovale: a cause of false negative contrast echocardiogram.

A 74-year-old man who had dyspnea and cyanosis demonstrated venous thrombosis and multiple lung ventilation-perfusion mismatches suggesting pulmonary emboli. Transthoracic echocardiography demonstrated a right atrial mass and a microbubble contrast study did not reveal right-to-left shunt. Transesophageal echocardiography revealed an embolus entrapped in the foramen ovale projecting into the left atrium that was subsequently removed. Embolic occlusion of patent foramen ovale is an important cause of false negative microbubble contrast study.

Aged↗
PubMedDate not supplied

An operational model for patient-centered informatics.

There are no multidisciplinary operational models to guide nursing informaticists and clinical system users in the design and implementation of computer-supported multidisciplinary care. The Patient-Centered Informatics Model is offered as just such a pragmatic guide. It fuses earlier work with new concepts and allows a visual depiction of crucial elements-influencing factors such as regulations and healthcare delivery models, system attributes such as healthcare delivery methods, knowledge base and supporting technology and categories of results of application processing. The model can help users and executives organize their thinking about the design, implementation, and evaluation of clinical systems in complex settings.

Computer Simulation↗