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Biomedical subjects

G A Harris

Publications and source records attributed to G A Harris.

11 recordsLinked to original sources

Multiple idiopathic left ventricular aneurysms in a Japanese woman.

Idiopathic aneurysms of the left ventricle (LV) are uncommon in Western society. Multiple idiopathic LV aneurysms are distinctly unusual and are rarely reported. As with aneurysms of atherosclerotic origin, these entities may be associated with chest discomfort, congestive heart failure, cardiac dysrhythmias, and thromboembolic phenomena. We present the case of a Japanese woman living in the United States with chest discomfort, ventricular arrhythmias, and a previous transient ischemic attack who demonstrated four discrete LV aneurysms on ventriculography. Extensive evaluation demonstrated no clear cause for these aneurysms. The patient was treated conservatively with medical therapy and has continued to do well without adverse clinical sequelae.

Angiotensin-Converting Enzyme Inhibitors↗

Placement of peripherally inserted central catheters in the cardiac catheterization laboratory.

This report describes our experiences with three patients requiring several weeks of central venous access for various intravenous therapies. These particular patients posed a considerable challenge for bedside placement of a peripherally inserted central catheter, so the catheters were placed in the cardiac catheterization laboratory by the cardiology team involved using a different technique for each patient.

Aged↗

The nurse machine.

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Interprofessional Relations↗

Phosphorylation in crested wheatgrass seeds at low water potentials.

Crested wheatgrass seeds [Agropyron desertorum (Fisch. ex Link) Schult.] were tested for their ability to carry on phosphorylation reactions at low water potentials. Seeds were treated with (32)P labeled sodium phosphate and incubated in air having different controlled relative humidities. Ion exchange chromatography and radioassay of phosphate esters indicated that some phosphorylation occurred at a water potential of -880 atmospheres. Seeds did not incorporate (32)P in nicotinamide adenine dinucleotide, adenosine triphosphate, and uridine diphosphate hexose until they were moistened to a water potential of -130 atmospheres.

Journal Article↗

Hexose-, inositol-, and nucleoside phosphate esters in germinating seeds of crested wheatgrass.

Net synthesis of phosphate esters was measured in crested wheatgrass seeds [Agropyron desertorum (Fisch.) Schult.] to learn what phosphorylating reactions occur in early stages of germination. Phosphate esters were separated on ion exchange columns and identified by cochromatography and chemical analyses. Synthesis of adenosine triphosphate and UDP-hexose was detected 6 hours after the beginning of water absorption. This synthesis occurred during the period of rapid increase in water potential. Synthesis of hexose phosphate and uridine triphosphate was detected 12 hours after the beginning of water absorption. The concentrations of these esters increased during 48 hours. Increases in concentration of inositol di-, tri-, and tetraphosphate suggested that hydrolysis of inositol hexaphosphate began after 12 hours.

Journal Article↗