Date of Award

5-1973

Document Type

Thesis - Restricted

Degree Name

Master of Science (MS)

Department

Biological Sciences

First Advisor

Howard M. Klitgaard

Second Advisor

Alvin F. Rieck

Third Advisor

William J. Stekiel

Fourth Advisor

David W. Glenister

Abstract

Thyroid hormones have a profound influence on growth and development in the mammal and metamorphosis in the amphibian. There is evidence that they also exert modifying influences on the liver during regeneration. Attempts have been made through the years to correlate these growth changes with the metabolic effects of the thyroid hormones and analogs. One variant in particular, triiodothyroacetic acid (T3AC), possesses potent metamorphic effects but only a fraction of the mammalian metabolic stimulation of triiodothyronine (T3). This study was undertaken to investigate the influence of T3 and T3AC on regenerating liver in the immature rat and to correlate the growth effects with metabolic changes that take place; namely, liver oxygen consumption, liver succinic dehydrogenase activity and whole animal basal metabolic rates.

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