Animal Sciences Commons^™

The Effect Of Propylthiouracil And Thyroid Powder On The Restoration Of Certain Components Of The Liver After Partial Hepatectomy In The Rat, Charles Major

Doctoral Dissertations

Summary:

The effect of the administration of thyroid powder and propylthiouracil in a forced feeding regimen upon the restoration of certain components of the rat liver has been studied at fourteen, twenty-four, and forty-eight hours after partial hepatectomy in the rat. Cellularity was determined and found to be highest in the thyroid group, intermediate in the controls, and lowest in the propylthiouracil group, both at operation, and throughout the subsequent regeneration. All groups declined in cellularity after the operation with only the thyroid group showing a significant return towards normal by the forty-eighth hour.

After the operation RNAP per cell, …

Electrophysiological And Electrolyte Changes In Frog Striated Muscle After Irradiation, Edgar B. Darden Jr.

Doctoral Dissertations

Introduction: Abbreviated

In the present work, evidence is presented that radiation injury in excised frog muscle may be very early reflected in a loss of membrane potential which occurs at loci more or less randomly distributed over the fibers available for impalement; i.e., the superficially located fibers. The number and severity of these electrical lesions increase with time and with dose and appear to be strongly influenced also by the temperature of the surroundings. Concurrently, potassium leakage is presumably occurring at these lesions, for in time a net loss of K can be demonstrated by gross analysis of the muscle …