Index Catalog // ScholarsArchive@OSU

Interactions of Trichoderma reesei exo-acting cellulases with p-aminophenyl 1-thio-β-D-cellobioside

Creator:: Piyachomkwan, Kuakoon
Abstract:: Cellulolytic enzymes capable of efficiently degrading crystalline cellulose are a complex mixture of endo- (endoglucanases) and exo-acting (cellobiohydrolases) enzymes. One approach to separating these enzymes is affinity chromatography. A new ligand, p-aminophenyl l-thio-β-D-cellobioside (APTC), is introduced for this purpose. The property of APTC in affinity chromatography is demonstrated using Trichoderma...
Resource Type:: Dissertation
Full Text:: separated by the use of affinity chromatography with immobilized p-aminobenzyl 1-thio- /S-D-cellobioside

Molecular genetics and enzymology of secondary metabolite biosynthesis. I, Isolation of natural product biosynthesis gene clusters from symbiotic marine organisms. II, Enzymology of blasticidin S biosynthesis

Creator:: Grochowski, Laura L.
Abstract:: Molecular genetic and enzymological techniques have been employed to study secondary metabolite biosynthesis. These investigations have focused on two projects: the cloning and heterologous expression of biosynthetic gene clusters from unculturable marine organisms and the characterization of individual enzymes involved in the biosynthesis of the antifungal agent blasticidin S. The...
Resource Type:: Dissertation
Full Text:: from Symbiotic Marine Organisms II. Enzvmologv of Blasticidin S Biosynthesis. Abstract approved: T

The progression of aflatoxin B₁ (AFB₁) hepatocarcinogenesis in rainbow trout (Oncorhynchus mykiss) : I. AFB₁ metabolism and cytotoxicity affecting hepatocarcinogenesis II. Ultrastructure of hepatocellular neoplasms

Creator:: Núñez, Oliva
Resource Type:: Masters Thesis
Full Text:: trabajo a mis padres, Antonio y Oliva". ACKNOWLEDGMENTS I want to express my gratitude to Dr. Jerry D

Evaluation of zebrafish (Brachydanio rerio) as a model for carcinogenesis

Creator:: Tsai, Hsi-Wen
Abstract:: Zebrafish (Brachydanio rerio) are small, freshwater teleost fishes in the family Cyprinidae, the true minnows. They are native to the tropical latitudes of India, but have become widespread through their use as aquarium fish and as models for several branches of biological research. Their ease of rearing, short generation time,...
Resource Type:: Dissertation
Full Text:: Zebrafish (Brachydanio rerio) as a model for carcinogenesis. Abstract approved: Jerry D. Hendricks

Factors contributing to the formation of CC-->TT tandem mutations

Creator:: Skinner, Amy M.
Abstract:: The multistage model of carcinogenesis states that an accumulation of mutations in genes that are important for maintaining cellular homeostasis may lead to cancer. A specific type of mutation observed in particular types of cancer is the CC-->TT mutation found in the TP53 gene of patients with basal or squamous...
Resource Type:: Dissertation
Full Text:: chronic (24 hours) D-ala followed by UVC treatment……………………… 17. Mutational spectra induced by

Hypermutagenic induction of mitotic recombination by ionizing radiation in Mlhl null mouse cells

Creator:: Wang, Qi
Abstract:: Mitotic recombination is a common autosomal mutation in mammalian cells involving crossover events between homologous chromosomes. This process can convert a cell with a heterozygous deficiency to one with a homozygous deficiency, and thus often represents the second step in tumor suppressor gene inactivation. In this study I examined the...
Resource Type:: Masters Thesis
Full Text:: approved: Mitchell S. Turker Mitotic recombination is a common autosomal mutation in mammalian cells

Prostate cancer prevention with broccoli : from cellular to human studies

Creator:: Clarke, John D.
Abstract:: Prostate cancer is the second leading cause of cancer related death in American men. Epidemiologic studies suggest that cruciferous vegetable intake may lower the risk for many cancers, including prostate and colon. Isothiocyanates (ITC) are phytochemicals derived from cruciferous vegetables such as broccoli, Brussels sprouts, cauliflower, and cabbage that may...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF John D. Clarke

A role for ceramide accumulation in age-related cardiac mitochondrial dysfunction

Creator:: Monette, Jeffrey S.
Abstract:: Ceramides are a group of lipids in the sphingolipid family that are potent cell signaling molecules. Elevations in ceramide levels above the norm generally lead to apoptosis. Evidence from in vitro studies suggests that accumulation of ceramides within mitochondria leads to dysfunction of the mitochondria. This includes inhibition of the...
Resource Type:: Dissertation
Full Text:: S. Monette for the degree of Doctor of Philosophy in Biochemistry and Biophysics presented on

The effects of environmental stressors on cardiac gene expression and contractility in rainbow trout (Oncorhynchus mykiss)

Creator:: Momoda, Tracey S.
Abstract:: Rainbow trout (Oncorhynchus mykiss) experience a variety of stressors in their natural environment as well as in aquaculture that can have negative effects on their physiology. The effects of physiological stress and endocrine disruption have been well described in fish. However, there is a scarcity of information on the effects...
Resource Type:: Dissertation
Full Text:: OF Tracey S. Momoda for the degree of Doctor of Philosophy in Fisheries Science presented on

Environmental complex mixtures modify benzo[a]pyrene and dibenzo[a,l]pyrene-induced carcinogenesis

Creator:: Courter, Lauren A.
Abstract:: Human exposure to the carcinogenic polycyclic aromatic hydrocarbons (PAHs) benzo[a]pyrene (B[a]P) and dibenzo[a,l]pyrene (DB[a,l]P) is through environmental complex mixtures, such as urban dust particulate matter (UDPM) and diesel exhaust (DE), however the potency of these PAH within a mixture is not established. To determine the effect of these mixtures on...
Resource Type:: Dissertation
Full Text:: Abstract approved: _____________________________________________________________________ William M

ScholarsArchive@OSU

Interactions of Trichoderma reesei exo-acting cellulases with p-aminophenyl 1-thio-β-D-cellobioside

Molecular genetics and enzymology of secondary metabolite biosynthesis. I, Isolation of natural product biosynthesis gene clusters from symbiotic marine organisms. II, Enzymology of blasticidin S biosynthesis

The progression of aflatoxin B₁ (AFB₁) hepatocarcinogenesis in rainbow trout (Oncorhynchus mykiss) : I. AFB₁ metabolism and cytotoxicity affecting hepatocarcinogenesis II. Ultrastructure of hepatocellular neoplasms

Evaluation of zebrafish (Brachydanio rerio) as a model for carcinogenesis

Factors contributing to the formation of CC-->TT tandem mutations

Hypermutagenic induction of mitotic recombination by ionizing radiation in Mlhl null mouse cells

Prostate cancer prevention with broccoli : from cellular to human studies

A role for ceramide accumulation in age-related cardiac mitochondrial dysfunction

The effects of environmental stressors on cardiac gene expression and contractility in rainbow trout (Oncorhynchus mykiss)

Environmental complex mixtures modify benzo[a]pyrene and dibenzo[a,l]pyrene-induced carcinogenesis

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