Index Catalog // ScholarsArchive@OSU

Temperature requirements of salmonids in relation to their feeding, bioenergetics, growth, and behavior

Creator:: Hughes, Robert M., Davis, Gerald E., Warren, Charles E., 1926-, and United States. Office of Water Research and Technology
Resource Type:: Technical Report
Full Text:: growth o f juvenile salmonids in aquaria to obtain information on direct effect s of temperature that

The effect of prepartum anionic diets on cortisol, adiponectin, and tumour necrosis factor-α expression at varying levels of body mass index in preparturient dairy cows: implications for insulin resistance

Creator:: Puntenney, Steven B.
Abstract:: Twenty-six Holstein and 18 Jersey multiparous cows in a randomized block design were assigned by calving date and breed to a non-anionic prepartum diet (CTRL) or a treatment diet containing a commercial anionic salt supplement (Animate®). Control and treatment diets were formulated to a dietary anion-cation difference (DCAD) of 21.3...
Resource Type:: Dissertation
Full Text:: Science presented on May 9, 2006. Title: The Effect of Prepartum Anionic Diets on Cortisol

Effect of the calpain inhibitor E-64-d on the degradation of α-fodrin in damaged muscle

Creator:: Boyd, Jeffrey
Abstract:: We hypothesized that calpain activity is elevated in response to muscle damage. To test this hypothesis, we examined the degradation of α-fodrin into its 150 and 145 kDa fragments following either 20 eccentric or isometric contractions. In addition, experiments were performed in the presence or absence of E-64-d, a calpain...
Resource Type:: Masters Thesis
Full Text:: presented on April 6, 2006. Title: Effect of the Calpain Inhibitor E-64-d on the Degradation of α-fodrin

Heat shock proteins and physiological stress in redband rainbow trout (Oncorhynchus mykiss gairdneri) in the South Fork John Day River, Oregon

Creator:: Feldhaus, Joseph W.
Abstract:: The goal of this research was to characterize thermal habitat requirements for juvenile redband steelhead trout (Oncorhynchus mykiss gairdneri) in the South Fork John Day River (SFJD), Oregon using physiological indicators of fish condition. Physiological indices of fish condition measured were whole body lipid content and heat shock proteins, specifically...
Resource Type:: Masters Thesis
Full Text:: indicator of physiological stress in PIT tagged fish, and the direct effect of PIT tagging on changes in

Chronobiology of garter snakes : environmental and hormonal mechanisms mediating hibernation and reproduction

Creator:: Lutterschmidt, Deborah I.
Abstract:: Most vertebrates exhibit seasonality in many life history traits. Such seasonal rhythms are temporally organized via the transduction of environmental cues (e.g., photoperiod, temperature) into appropriate endocrine signals. However, among ectothermic vertebrates that undergo continuous winter dormancy, temperature is the only environmental cue available for synchronizing seasonal rhythms. Most intriguing...
Resource Type:: Dissertation
Full Text:: ). ...........................................................................................138 4.2 Effect of capture stress on (A) corticosterone and (B) melatonin concentrations of

The effect of nicotinic acid supplementation during late-gestation on lipolysis and feed intake during the transition period

Creator:: Chamberlain, Jason L.
Abstract:: An experiment was conducted with 27 multiparous Holstein and 27 multiparous Jersey cows to determine if nicotinic acid (NA) supplementation during the prepartum phase of the transition period decreases lipolysis and improves dry matter intake and to determine if Holstein and Jersey cows respond similarly to NA supplementation. Cows were...
Resource Type:: Masters Thesis
Full Text:: had no effect on prepartum or postpartum nonesterfied fatty acids (NEFA), β-hydroxybutyrate, and

Fluorimetric analysis of intracellular calcium in high and low mobility fowl sperm

Creator:: Olson, Jill Wardell
Abstract:: Sperm mobility is defined as the net movement of a sperm population against resistance. Previous research demonstrated that the cell-permeant Ca2+ indicator rhod-2 AM gave a fluorescent signal predominantly in the head region of fowl sperm that differed between sperm mobility phenotypes. This thesis served to explore the role of...
Resource Type:: Masters Thesis
Full Text:: with the Ca2+ indicator Rhod-2 AM. ………..……………....63 4. Effect of incubating sperm at 41° C in 5 mM

Human health risk assessment of herbicide applications to control noxious weeds and poisonous plants in the Northern Region

Creator:: Monnig, Edward C.
Abstract:: This summary discusses the risk to human health associated with herbicide application projects to control noxious weeds and poisonous plants on lands administered by the USDA Forest Service in the Northern Region. The Northe!n Region consists of approximately 211.8 million acres of National Forest System (NFS) land in northern Idaho,...
Resource Type:: Technical Report

The role of lutein and zeaxanthin in protecting the retina from light damage

Creator:: Derenick, Rhianna A.
Abstract:: Purpose: The xanthophyll carotenoids lutein and zeaxanthin are concentrated in the macula lutea of the retina. It is thought that the two plant pigments may play a role in preventing the development of age-related macular degeneration (AMD). Exposure to damaging light plays a role in retinal deterioration and AMD. The...
Resource Type:: Masters Thesis
Full Text:: can examine biochemical, physiological and dietary mechanisms of carotenoids and light damage at

Reconstructing salinity conditions in Nares Strait (Canadian Archipelago) from stable isotope profiles in bivalve shells

Creator:: Zima, Daniela
Abstract:: Nares Strait is one of three main passages of the Canadian Archipelago that channels freshwater from the Arctic Ocean to the North Atlantic. There are very few observations regarding the role of this region on the present day Arctic freshwater budget, and even less regarding the changes in freshwater fluxes...
Resource Type:: Masters Thesis

Exploring the cellular mechanisms of Cnidarian bleaching in the sea anemone Aiptasia pallida

Creator:: Perez, Santiago
Abstract:: Many members of the Phylum Cnidaria are mutualistic with unicellular dinoflagellates belonging to the genus Symbiodinium. Corals are the most widely recognized example of these associations due to their key ecological importance in coral reef ecosystems where they serve as the structural and trophic foundation of these rich ecosystems. Coral...
Resource Type:: Dissertation
Full Text:: know how the differential physiological susceptibility of the algae translates mechanistically into

The use of natural plant extracts as a feed additive to prevent laminitis in lactating dairy cows

Creator:: Pierson, Miranda L.
Abstract:: Two experiments were conducted looking at both acute and sub-acute laminitis. An acute nutritional induction model was used to examine whether blood profiles and gene expression are similar to other studies conducted using an endotoxin induction model. Twelve sheep were randomly assigned to three treatment groups which were control, 4-hour...
Resource Type:: Masters Thesis
Full Text:: physiological responses similar to lipopolysaccharides (LPS) (Mullenax et al., 1966). It was hypothesized

Chlordecone (CD), a mixed steroid X receptor (SXR) and estrogen receptor alpha(ERα) agonist, altered hepatic cholesterol (CH) homeostasis and lipoprotein metabolism

Creator:: Lee, Junga
Abstract:: Overtly non-toxic doses of organochlorine (OC) insecticides perturb lipid homeostasis in mice and rats. To increase understanding of how chlordecone (CD), an OC insecticide, modulates cholesterol (CH) homeostasis, we determined the effect of CD pretreatment on the tissue and hepatic subcellular distribution of exogenous [¹⁴C]CH. Corn oil alone or CD...
Resource Type:: Dissertation
Full Text:: ) homeostasis, we determined the effect of CD pretreatment on the tissue and hepatic subcellular distribution

Composition of flavonoid phenolic polymers isolated from red wine during maceration and significance of flavan-3-ols in foods pertaining to biological activity

Creator:: Aron, Patricia M.
Abstract:: Representing the most common flavonoid consumed in the American diet, the flavanols and their polymeric condensation products, the proanthocyanidins, are regarded as functional ingredients in various beverages, whole and processed foods, herbal remedies and supplements. Their presence in food affects food quality parameters including astringency, bitterness, sourness, sweetness, salivary viscosity,...
Resource Type:: Masters Thesis
Full Text:: Effect on food quality............................................................................6

Sesame oil increases plasma γ-tocopherol and inhibits γ-tocopherol metabolism in humans

Creator:: Lee, Sangeun
Abstract:: In rats, sesame lignans increase plasma γ-tocopherol concentrations and inhibit γ-tocopherol degradation to its metabolite γ-carboxyethylhydroxychroman (γ-CEHC). To test if sesame lignan consumption inhibits γ- tocopherol metabolism in humans, muffins prepared with either corn oil (control) or sesame oil and an equimolar mixture of deuterium labeled d6-α- and d2-γ- tocopheryl...
Resource Type:: Masters Thesis
Full Text:: ................................................................................. 7 γ-Tocopherol’s physiologic effect on human health

Age-related alterations in transcriptional regulation of hepatic glutathione synthesis : remediation by R-alpha-lipoic acid

Creator:: Shenvi, Swapna V.
Abstract:: Glutathione (GSH) is the predominant low molecular weight thiol antioxidant in liver tissue. GSH plays an important role in maintaining the intracellular thiol redox ratio as well as detoxification of electrophiles and xenobiotics. Aging leads to a significant decline (35%; P ≤ 0.05) in hepatocellular GSH levels. Using young (2-4...
Resource Type:: Dissertation
Full Text:: -factorial process characterized by a progressively reduced ability to cope with physiological challenges

Exercise, nutrition, and homocysteine

Creator:: Joubert, Lanae Marie
Abstract:: Exercise increases B-vitamin (B6, B12, folate) dependent metabolic reactions, especially those related to energy production and the rebuilding and repairing of muscle tissue. These same B-vitamins are also important in maintaining low blood levels of homocysteine (Hcy), a cardiovascular disease (CVD) risk factor. Hcy levels rise when the metabolism of...
Resource Type:: Dissertation
Full Text:: exercise intensity is vigorous. Research examining the effect of exercise on Hcy is limited with no

Antioxidant enzyme response in rainbow trout (Oncorhynchus mykiss) after subchronic exposure to an environmentally-relevant polycyclic aromatic hydrocarbon mixture

Creator:: Norby, Tyler S.
Abstract:: Polycyclic aromatic hydrocarbons (PAHs) are significant pollutants in aquatic environments. Many are carcinogenic and lead to DNA fragmentation and adduct formation in marine and freshwater organisms. Previous research demonstrates that rainbow trout (Oncorhynchus mykiss) compensate to long-term PAH dietary exposures and reduce the DNA damage. The aim of this study...
Resource Type:: Masters Thesis
Full Text:: a significant protective effect against oxidative stress in rainbow trout cell lines (Maracine and

Control of p53 tumor suppressor and peroxiredoxin activity through shifts incellular redox balance

Creator:: Stoner, Christopher S.
Abstract:: Aerobic organisms have evolved many sensory mechanisms that allow response to oxidants in the environment. One area of interest is the relationship between the activity of the tumor suppressor protein p53 and the redox state of thioredoxin. Human p53 activity is severely compromised in budding yeast lacking thioredoxin reductase. Evidence...
Resource Type:: Dissertation
Full Text:: , and the effect on p53 activity in wild- type and thioredoxin reductase-null yeast was determined

Molecular characterization of bacterial populations implicated inthe anaerobic metabolism of toxic plant alkaloids from two different experimental and environmental sources

Creator:: Rattray, Rogan MacKay
Abstract:: There have been many studies that describe the protective degradation or metabolism of potentially harmful plant toxins, such as, mimosine from Leucaena leuconcephala, pyrrolizidine alkaloids from tansy ragwort (Senecio jacobaea), oxalate and some mycotoxins by rumen microbes. There are many cases of plant-related toxicoses suffered by ruminant animals where there...
Resource Type:: Masters Thesis
Full Text:: cause of toxicosis. The physiological activities of ergovaline and the other ergot alkaloids have been

Properties of phospholipase C-β-mediated signaling in H9c2 cardiac myoblasts

Creator:: Kwon, Sun Hyung
Abstract:: The mechanisms by which the activities of phospholipase C-β (PLC-β) enzymes are negatively regulated have not been well defined. We used cardiac-derived ratmyoblast H9c2 cells to investigate possible modes of regulation of PLC-β3 enzymes,the only endogenous β isoform abundantly found in these cells. The PLC-β3population in these cells was detected...
Resource Type:: Masters Thesis
Full Text:: ). The physiological effects of many extracellular stimuli, such as hormones, growth factors and

An allometric examination of the relationship between radiosensitivity and mass

Creator:: Bytwerk, David Paul
Abstract:: The results of a review of six decades of existing literature for 50% lethal dose data across a range of phyla are presented. The collected 50% lethal dose data is limited to adult organisms subjected to acute doses of gamma radiation. The data collected is examined to determine whether useful...
Resource Type:: Masters Thesis
Full Text:: . Rules and regulations dealt exclusively with the effect of radiation on h. sapiens, reasoning that

Contractile function and calpain activity in mouse skeletal muscle during hypoxia

Creator:: Hu, Hui
Abstract:: Calcium activated proteases, or calpains, are activated in cardiac muscles under conditions of ischemia/reperfusion and hypoxia. Their activity in skeletal muscle under similar conditions is poorly understood. We tested the hypothesis that hypoxia elevates calpain-mediated proteolysis in isolated glycolytic (extensor digitorum longus, EDL) and oxidative (soleus, SOL) mouse muscles studied...
Resource Type:: Masters Thesis
Full Text:: increase. However, inhibition of calpain activity had no effect on peak power output and isometric force

Development of a progeny marker for steelhead

Creator:: Shippentower, Gene E.
Abstract:: This study was undertaken to determine if strontium chloride could be used to create a trans-generational otolith mark in steelhead (Oncorhynchus mykiss). I completed two strontium injection trials and a survey of juvenile steelhead from various steelhead hatcheries. The two trials measured Sr:Ca ratios in otoliths in response to injections...
Resource Type:: Masters Thesis
Full Text:: assessed the effect of treatment on the survival and growth of progeny from treated females. Finally, I

Impact of weak and strong acids on the destruction of lactic acid bacteria during high pressure processing

Creator:: Sarangapani, Rama Krishna
Abstract:: High hydrostatic pressure (HHP) affects the pH of weak acids due to an increased degree of acid dissociation while under pressure. The temporary pH reduction by high pressure in such a case may influence the barotolerance of microorganisms. The objective of this study was to determine the impact of weak...
Resource Type:: Masters Thesis
Full Text:: bacteria across a range of pH under high hydrostatic pressure conditions. The effect of two acid groups

Ecological studies in radioactivity in the Columbia River Estuary and adjacent Pacific Ocean : progress report 1 July 1972 through 31 March 1974

Creator:: Cutshall, N. H., Carey, Andrew G., Holton, Robert L., Pearcy, William G., Renfro, William C., and McMechan, Karla J.
Abstract:: This report presents progress accomplished during the 20-month period from 1 July 1972 through 31 March 1974 as part of the program "Ecological Studies of Radioactivity in the Columbia River Estuary and Adjacent Pacific Ocean". This program is a continuing study supported by the Division of Biomedical and Environmental Research...
Resource Type:: Technical Report
Full Text:: --Jennings and Osterberg . . . . . . . . . . . . . . 60 Effect of Gamma Irradiation on the Reproductive

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