ST Segment Elevation; ST Segment Depression . General Introduction to ST, T, and U wave abnormalities. Basic Concept: the specificity of ST-T and U wave abnormalities is provided more by the clinical circumstances in which the ECG changes are found than by the particular changes themselves. Thus the term, nonspecific ST-T wave abnormalities, is frequently used when the clinical data are not available to correlate with the ECG findings.
lutein â(usually uncountable, plural luteins) ( 1 organic chemistry) A yellow carotenoid pigment, widely distributed in both plants and animals. 2  E161b when used as a food colouring.  xanthophyll.
Foods Containing Lutein and Zeaxanthin. The best natural food sources of lutein and zeaxanthin are green leafy vegetables and other green or yellow vegetables. Among these, cooked kale and cooked spinach top the list, according to the U.S. Department of Agriculture (USDA).Non-vegetarian sources of lutein and zeaxanthin include egg yolks.ooked spinach is one of the best natural food sources of lutein and zeaxanthin. In addition to being found in many green leafy plants and colorful fruits and vegetables, lutein and zeaxanthin are found in high concentrations in the macula of the human eye, giving the macula its yellowish color.