Ethylmethane sulfonate-induced mutants of several Escherichia coli strains that required 8-aminolevulinic acid (ALA) for growth were isolated by penicillin enrichment or by selection for respiratory-defective strains resistant to the aminoglycoside antibiotic kanamycin. Three classes of mutants were obtained. Two-thirds of the strains were mutants in hemA. Representative of a third of the mutat...

BACKGROUND The purpose of this study was to investigate cardiac events in patients with transient left ventricle (LV) dilation on stress myocardial perfusion single-photon emission computed tomography images (MPI). METHODS AND RESULTS Consecutive patients (n=53, 31 males, mean age 71 years) with transient LV dilation on thallium-201 stress MPI (treadmill: 21, pharmacologic: 32) were followed ...

BACKGROUND AND PURPOSE Homocysteine is associated with stroke, but it is not clear whether this relationship is causal. We examined the association between total serum homocysteine concentration (tHcy) and cerebral infarction in a cohort of Finnish male smokers. METHODS This is a matched case-control study of 201 cases of cerebral infarction and 201 concurrently sampled age-matched controls n...

To evaluate the difference in myocardial damage between primary aldosteronism and untreated essential hypertension, we performed thallium-201 myocardial single-photon emission computed tomography in 10 patients with primary aldosteronism and 10 patients with essential hypertension who were matched for age, sex, blood pressure, and the severity of left ventricular hypertrophy for primary aldoste...

BACKGROUND The clinical significance and pathophysiological mechanisms of reverse redistribution on stress-redistribution thallium-201 myocardial scintigraphy in patients with chronic coronary artery disease are unclear. Recent studies have shown that thallium-201 reinjection is a useful technique for the detection of myocardial viability in chronic coronary artery disease. In this investigatio...

ISHIDA, N., UMENAI, T., SHIRACHI, R., SHIRATORI, T. and KONNO, J. The Presence of High and Low Incidence Districts of Australia Antigen in Miyagi Prefecture. Tohoku J. exp. Med., 1972, 107 (2), 201-202 Age distribution of per cent positives of Australia (Au) antigen in several counties of Miyagi Prefecture was compared. Although the average incidence throughout the Prefecture was 1.7%, the high...

Abraham, Karl 187 Adorno, Theodor. W. 250–1 Age and death Childhood and infancy 23, 38–9, 46, 175–6, 178, 191–5, 199–200, 225, 270 Midlife 196 Old age 189, 195–6, 197–9, 201, 205 Alford, C. Fred 115, 120 n. 10 Alvarado, Katherine A. 7 n. 3 Ambition 47–8, 55, 75–89 Annihilation anxiety 20, 27, 109 n. 5, 233–4 Anthony, Sylvia 23 Anxiety 32–3, 105–11, 191–3, 222, 238–9, 273 in dreams 92–3, 98–101 ...

The aim of this study was to assess the incidence of myocardial infarction among persistent perfusion defects in dipyridamole-stress thallium scintigraphy by inspecting autopsied hearts and to evaluate whether the regional thallium activity of a scintigraphic defect can predict the presence of infarction. Autopsied hearts were compared with dipyridamole myocardial scintigrams undertaken during ...

Thallium (Tl) 201 and technetium (Tc) 99m tetrofosmin single-photon emission CT are routinely used in the evaluation of coronary artery disease. Mediastinal tumors demonstrate Tl 201 and Tc 99m tetrofosmin uptake. We report a 56-year-old man who developed chest pain after a previously successful angioplasty and stent of the left anterior descending coronary artery. He underwent a Tl 201, Tc 99m...