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Full-Text Articles in Medicine and Health Sciences
Polyamine And Acetylpolyamine Levels During Phenylhydrazine-Induced Erythropoiesis In Mouse Spleen, Othman A. Alshabanah
Polyamine And Acetylpolyamine Levels During Phenylhydrazine-Induced Erythropoiesis In Mouse Spleen, Othman A. Alshabanah
University of the Pacific Theses and Dissertations
The phenylhydrazine-induced erythropoietic mouse spleen is used as a model system to demonstrate the relationship between tissue growth and polyamine metabolism. Phenylhydrazine produced significant changes in spleen weights, hematocrits and reticulocyte counts in Swiss-Webster mice. The average spleen weight went up from a control of 155 mg to 875 mg at 96 hours after phenylhydrazine administration, while a 49% reduction in the value of hematocrit was observed at 72 hours. Reticulocyte counts in peripheral blood went from 0.8 to 58% at 168 hours after treatment with phenylhydrazine. Phenylhydrazine at a dose of 40 mg/kg produced significant increases in the levels …
Aspects Of The Oculomotor System Of Callinectes Sapidus, Antoinette Steinacker
Aspects Of The Oculomotor System Of Callinectes Sapidus, Antoinette Steinacker
University of the Pacific Theses and Dissertations
An isolated perfused preparation was developed for the study of several aspects of the oculomotor system of the blue crab, Callinectes sapidus. The system for eyestalk rotation was investigated on an extracellular level. Two antagonistic pairs of muscles under visual and statocyst control were found to be responsible for stabilization and rotation of the eyestalk. The primary sensory input to the muscles appears to be from the statocysts, with both static position sense and dynamic acceleration components influencing the motor response. Two sensory feedback systems from mechanoreceptive hairs were found which influence the response of the eye stalks to statocyst …
Effects Of And Recovery From High And Low Oxygen Tensions On A Strain Of Mouse Fibroblasts Cultivated In Vitro, David Harold Shaw
Effects Of And Recovery From High And Low Oxygen Tensions On A Strain Of Mouse Fibroblasts Cultivated In Vitro, David Harold Shaw
University of the Pacific Theses and Dissertations
No abstract provided.