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Other Animal Sciences Commons

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Full-Text Articles in Other Animal Sciences

A Study On The Life History And Seasonal Foraging Habits Of The Salamander Desmognathus Quadramaculatus Holbrook, In Wv, Glenn R. Mills Jan 1996

A Study On The Life History And Seasonal Foraging Habits Of The Salamander Desmognathus Quadramaculatus Holbrook, In Wv, Glenn R. Mills

Theses, Dissertations and Capstones

A study was conducted on Desmognathus quadramaculatus in the northern periphery of its range with some aspects of its life history, surface density, and seasonal foraging habits. The results in this study are compared to studies done on D. quadramaculatus in the southern portion of its range. Female D. quadramaculatus have been found tending egg clutches from June to September in the southern portion of its range and data collected in this study shows that egg deposition also occurs during this period in the northern population. Female size (SVL) at which D. quadramaculatus reach sexual maturity ranged from 57.6- 77.5 …


Effect Of Retinoic Acid On The Expression And Function Of Ap-1 Transcription Factor In B16 Mouse Melanoma Cells: Role Of Protein Kinase, Sejal H. Desai Jan 1996

Effect Of Retinoic Acid On The Expression And Function Of Ap-1 Transcription Factor In B16 Mouse Melanoma Cells: Role Of Protein Kinase, Sejal H. Desai

Theses, Dissertations and Capstones

Retinoic acid (RA) induces differentiation of B16 mouse melanoma cells. This differentiation is accompanied by an increase in protein kinase Ca (PKCα) protein level and selective enrichment in nuclear-associated PKCα. PKC is thought to regulate gene expression through the TPA response element (TRE). This element is specifically recognized by the AP-1 transcription factor composed of jun and fos family members. In this study, I have analyzed the effect of RA on the expression and function of AP-1 in B16 mouse melanoma cells. Transient transfection analysis of B16 cells using leuciferase reporter gene constructs with or without AP-1 elements indicated that …


Postnatal Development Of The Neural Retina In A South American Opossum: Monodelphis Domestica, Tracy L. Soltesz Jan 1996

Postnatal Development Of The Neural Retina In A South American Opossum: Monodelphis Domestica, Tracy L. Soltesz

Theses, Dissertations and Capstones

Postnatal retinal development was studied in a marsupial opossum, Monodelphis domestica using light microscopy and 3H-thymidine autoradiography. For the light microscopic study, opossum neonates at 1, 3, 7, 14, 21, 25 and 28 days of age were euthanized, fixed and processed into paraffin sections for hematoxylin and eosin staining. The distinct ganglion cell layer, first observed on postnatal day (P) 7, was separated from the outer neuroblasts by the inner plexiform layer. The neuroblast layer was divided into inner and outer nuclear layers on P25 by the presumptive outer plexiform layer, indicated by discrete intercellular spaces located between the nuclear …