Index Catalog // ScholarsArchive@OSU

Hemoglobin adducts of the organophosphate insecticide azinphos-methyl

Creator:: Bailey, Bonnie J.
Abstract:: Reported here is an investigation to determine if azinphos-methyl (AZM), an organophosphate insecticide, adducts to hemoglobin, and if so, whether the hemoglobin adduct could be used as a quantitative marker of occupational AZM exposure. We hypothesized that AZM, or a metabolite of AZM, binds to hemoglobin in erythrocytes forming an...
Resource Type:: Dissertation
Full Text:: physiological role for that enzyme has been defined, use of the term cholinesterase assumes AChE unless

Indole-3-carbinol and 3,3'-diindolylmethane : relative potency as modulators of drug metabolism and carcinogenesis

Creator:: Katchamart, Sirinmas
Abstract:: Indole-3-carbinol (I3C), the most abundant metabolite of glucobrassicins, is found in cruciferous vegetables such as broccoli, Brussels sprouts, cabbage and cauliflower. I3C has been shown to have anticarcinogenic activity against many chemical carcinogens in multiple target organs in animal models. However, the anticarcinogenic activity of I3C is considered indirect since...
Resource Type:: Dissertation
Full Text:: supplementation are its estrogenic effect as seen in trout and its ability to induce cytochrome P45 Os involved

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

Purification and characterization of recombinant calpain-5

Creator:: Wang, Mei-Chuan
Abstract:: Recombinant human calpain-5 was expressed in insect cells using a baculovirus system. The expressed calpain-5 was purified by both traditional chromatography and by affinity-column chromatography. Both methods yielded active protease. Calpain-5 displayed very limited hydrophobicity. This indicated that calpain-5 is not a membrane binding protein. Calpain-5 had pI of 8.3....
Resource Type:: Dissertation
Full Text:: cysteine proteases. Although the exact physiological roles of calpains remain to be elucidated, calpains

Estimation of the energy cost of walking 10,000 steps

Creator:: Birdsley, Kari L.
Abstract:: There is a strong campaign underway to promote increased physical activity among the U.S. population. The U.S. Surgeon General and the U.S. Dietary Guidelines have presented physical activity recommendations in terms of the amount of time accumulated in physical activity and/or in terms of energy expenditure over the course of...
Resource Type:: Masters Thesis
Full Text:: activity has a positive effect on one's physical well being. The American College of Sports Medicine

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

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

Steroids regulate α2,6-sialic acid-containing glycoconjugates in murine uterine epithelium at the time of implantation

Creator:: Gaza-Bulseco, Georgeen S.
Abstract:: Sialic acids are involved in many cellular interactions. They can serve as an adhesion ligand or act as an inhibitor to cellular adhesion by charge repulsion or by masking potential ligands. Although sialic acids are implicated in the process of blastocyst implantation, their expression and regulation in uterine epithelium of...
Resource Type:: Masters Thesis
Full Text:: negative effect on adhesion. Due to their terminal location and negative charge, they can inhibit cellular

The effect of two levels of glucose ingestion on plasma pyridoxal 5'-phosphate concentration

Creator:: Huang, Ying-Hui
Abstract:: This study was designed to evaluate the effect of glucose on plasma pyridoxal 5'- phosphate (PLP) concentration. The objective was to determine whether there was a negative relationship between glucose ingestion and plasma PLP concentration and to evaluate the possible mechanism of decreased PLP after acute glucose ingestion. Seven healthy...
Resource Type:: Masters Thesis
Full Text:: Master of Science in Nutrition and Food Management presented on January 11, 2000. Title: The Effect of

Fibrinogen adsorption at heparinized silica interfaces : history dependence and protein concentration effects

Creator:: Joshi, Omkar
Abstract:: Adipic dihydrazide-modified heparin was prepared and subsequently immobilized on surface-activated silica wafers. X-ray photoelectron spectroscopy (XPS) was used to quantify the elemental composition of the silica surface at each stage of activation and results showed that successful immobilization had taken place. Contact angle measurements were made to verify the high...
Resource Type:: Masters Thesis
Full Text:: possible alternative is heparin immobilization on the biomaterial, so that the anticoagulant effect will

Chlordecone pretreatment promoted subcellular distribution of scavenger receptor class B type II to murine hepatic microsomes ; mass spectrometry detected hepatic soluble cholesterol binding proteins and comparison of protein iTRAQ ratios using ESI QTOF and MALDI TOF/TOF

Creator:: Scheri, Richard C.
Abstract:: Chlordecone belongs to the class of persistent organochlorine pesticides that are remarkably resistant to environmental degradation. Even though their use was banned in the United States in 1978, these compounds can still be detected in both humans and wildlife throughout the world. Previous work has shown that the pretreatment of...
Resource Type:: Dissertation
Full Text:: promotes subcellular distribution of SR-BII to murine hepatic microsomes while having no effect on liver

Elevated ceramide levels contribute to the age-associated decline in vascular endothelial nitric oxide : pharmacologic administration of lipoic acid partially restores function

Creator:: Smith, Anthony R.
Abstract:: The vascular endothelium is a single cell layer that lines the lumen of the entire vasculature. It is the site of synthesis of nitric oxide (NO), a vasodilatory compound synthesized by endothelial nitric oxide synthase (eNOS). NO causes intracellular calcium sequestration of the vascular smooth muscle cells, relaxing and dilating...
Resource Type:: Dissertation
Full Text:: approximately 70 million by the year 2030 [192]. Thus, the physiological importance of the effect of age on the

Fibrinogen adsorption at heparinized silica interfaces : history dependence and adsorption time effects

Creator:: Lee, Hyo Jin
Abstract:: Heparin was modified with adipic diliydrazide and covalently linked to surface-activated silica. Contact angle measurements were made to determine changes in surface at various stages of the derivatization. Xray photoelectron spectroscopy was used to analyze the elemental composition of the surface at each step of immobilizing heparin as well and...
Resource Type:: Masters Thesis
Full Text:: effect of history dependence observed to be more pronounced on the heparinized silica. It is believed

Human platelet adhesion to heparinized silica surfaces

Creator:: Bolsinger, Travis Samuel Sebastian
Abstract:: Heparin was modified and immobilized to surface-activated silica surfaces using two different reaction schemes. End-aminated heparin was reacted with 2-iminothiolane to produce free thiol groups at the terminal ends of the heparin chains. The end-thiolated heparin was immobilized by reaction with a pyridyl disulfide activated poly[ethylene oxide]-poly[propylene oxide]-poly[ethylene oxide] triblock...
Resource Type:: Masters Thesis
Full Text:: repel proteins and have some sort of biological effect on the surface. 5 Li et al (1996

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

Molecular and cellular mechanisms of aromatic hydrocarbon axonopathy

Creator:: Kim, Min-Sun
Abstract:: Hydrocarbon solvents are widely used in the production of paints, adhesives, dyes, polymers, plastics, textiles, printing inks, agricultural products and pharmaceuticals. While the neuropathic potential of aliphatic solvents was shown in the 1970s, little is known about the neuropathic potential of aromatic solvents. The present study examines such solvents, 1,2-diethylbenzene...
Resource Type:: Dissertation
Full Text:: 3.1 In-vitro effect of diacetylbenzene isomers on test proteins bovine serum albumin and ribonuclease

Inflammation, immune suppression, and iron status in endurance athletes and the effects of antioxidant supplementation

Creator:: Hopkins, Dawn Marie Weseli
Abstract:: During extreme exercise, athletes experience increased inflammation that is similar to the acute phase response. Endurance athletes, distance runners in particular, are also more susceptible to compromised iron stores. This study evaluated inflammation, immune function and iron status in athletes completing a 50K ultramarathon. Twenty-two well-trained distance runners, 11 males...
Resource Type:: Masters Thesis
Full Text:: extremely complex interactions (17, 26). Cytokines are secreted by cells and can effect the actions of the

Alterations in the permeability of cimetidine by dietary flavonoids using an in vitro transport model, Caco-2 cell

Creator:: Taur, Jan-Shiang
Abstract:: The goal of this dissertation is to investigate the interaction between cimetidine and dietary flavonoids using the Caco-2 cell transport model. It has been shown that flavonoids can change the bioavailability of pharmaceuticals, either by inhibiting metabolizing enzymes or inhibiting the drug efflux transporters. However, the effect of dietary flavonoids...
Resource Type:: Dissertation
Full Text:: inhibiting the drug efflux transporters. However, the effect of dietary flavonoids in the absorption of

Uncovering the mechanism of IL-4-mediated T cell survival

Creator:: Moscibrocki, Cathleen M.
Abstract:: Although IL-4 is a well-characterized multi-functional cytokine, its role as a survival factor in T cells is not completely understood. In an attempt to uncover IL-4-mediated survival, we studied caspase activation in primary mouse T lymphocytes undergoing death by neglect, activation-induced or steroid-induced cell death. Here, we identify the executioner...
Resource Type:: Masters Thesis
Full Text:: , involving drastic biochemical, physiological, and morphological changes that lead to death. These events

High dietary phosphorous is not detrimental to bone health of young men, assessed by urinary deoxypyridinoline, when calcium intake is at the recommended level

Creator:: Bizik, Brian
Resource Type:: Masters Thesis
Full Text:: moderately-low calcium intake can have a detrimental effect on bone. Short term ingestion of a high

Laboratory investigations of the natural fluorescence of marine phytoplankton

Creator:: Laney, Samuel R.
Abstract:: The influence of nitrate availability and irradiance on phytoplankton natural fluorescence was investigated in laboratory cultures of the marine diatom Thalassiosira weissflogii (Bacillariophyceae). Two cultures of phytoplankton, differing only in the nitrate-limited growth rate, were compared to learn how increases in irradiance influences natural fluorescence. Instrumentation was developed for these...
Resource Type:: Masters Thesis
Full Text:: > .......................................................... 58 3.5.3 Physiological Sources of Variability in Fnat ...................................... 61

Exposure of ionic hyper-regulated artemia to chlorine – 36 in a marine system

Creator:: Shaw, Christopher Glenn
Abstract:: Chlorine – 36 (36Cl) is produced naturally, through neutron activation of stable chlorine during nuclear weapons detonation, or from neutron capture on residual chlorine in graphite piles. It has a half-life of 301,000 years and decays by the means of beta decay with an average energy of 236.33 keV. Due...
Resource Type:: Masters Thesis
Full Text::  was developed  taking  into  account  a  cycling  effect  that  closely mimicked  the  research  data

The role of zinc in the molecular and cellular events in the prostate

Creator:: Yan, Michelle
Abstract:: Zinc is an essential mineral that is integral to many proteins and transcription factors that regulate key cellular functions. The normal prostate accumulates high concentrations of zinc; however, malignant tissues have significantly lower zinc levels. This unique relationship between zinc and the prostate has sparked interest in the role of...
Resource Type:: Dissertation
Full Text:: expression of zinc transporters may explain this effect, as expression of zip1 and zip3 were significantly

Effects of acute stress and tagging on the swimming performance and physiology of Pacific lampreys (Lampetra tridentata)

Creator:: Close, David A.
Abstract:: Pacific lampreys (Lampetra tridentata) have declined in abundance in the Columbia River Basin. Although, the reasons for the decline are unclear, we suggest that development of hydroelectric dams and habitat alterations in tributaries as the main causes. The available knowledge of life history of Pacific lampreys and status from dam...
Resource Type:: Masters Thesis
Full Text:: lampreys. The swimming performance and physiological effects of surgical implantation of three different

Dietary polyunsaturated fatty acids and leukotriene production in poultry

Creator:: Jha, Shantibhushan
Abstract:: Inflammation is the body's response to injury and is characterized by pain, swelling, redness, and heat. Eicosanoids are lipid mediators of inflammation. Leukotrienes (LT) are 20-carbon eicosanoids produced from arachidonic acid (AA), an n-6 fatty acid (FA), and eicosapentaenoic acid (EPA), an n-3 FA. LT produced from AA are proinflammatory...
Resource Type:: Masters Thesis
Full Text:: ; optimum conditions for LTB4 production are similar in all three species. In the second study, the effect

Effect of dietary fatty acids, time of feeding and immune response in poultry

Creator:: Gonzalez, Dulmelis
Abstract:: In the presence of internal or external stressors, the body requires sources of energy that aide cells to combat inflammation. Fatty acids are an important source of energy and are vital components of cell membranes. Dietary fatty acids (n-6 and n-3) are of importance in immune function because they are...
Resource Type:: Masters Thesis
Full Text:: Gonzalez 2008.doc Effect of Dietary Fatty Acids, Time of Feeding and Immune Response in Poultry

Physiological, proteomic, and whole-genome transcriptional responses of Nitrosomonas europaea to heavy metals (Zn²⁺,Cd²⁺, Cu²⁺, and Hg²⁺) and cyanide : identification of heavy metals and cyanide stress response genes

Creator:: Park, Sunhwa
Abstract:: Nitrosomonas europaea (ATCC19718) participates in the biological removal of nitrogen from wastewater by oxidizing ammonia to nitrite, the first step in nitrification. This bacterium is sensitive to heavy metals (Zn²⁺, Cd²⁺, Cu²⁺, and Hg²⁺) and cyanide, compounds commonly encountered in wastewater treatment plants. Therefore, we characterized physiological and transcriptional responses...
Resource Type:: Dissertation
Full Text:: . Title: Physiological, Proteomic, and Whole-Genome Transcriptional Responses of Nitrosomonas europaea

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

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

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 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

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

Inhibition of exercise-induced oxidative stress, inflammation and muscle damage by prior supplementation with the antioxidant vitamins E and C

Creator:: Mastaloudis, Angela
Abstract:: To determine if 6 weeks prior supplementation with vitamins E and C could alleviate exercise-induced DNA damage, prevent lipid peroxidation and inflammation, slow the rate of vitamin E utilization and/or attenuate muscle damage, 22 subjects (11 females: 11 males) were studied during a 50 km (32 mile) ultramarathon. Subjects were...
Resource Type:: Dissertation
Full Text:: had no effect on exercise-induced inflammation, or muscle damage markers. Thus, vitamin E and C

Fluoride content of foods made with mechanically separated chicken as a potential risk factor for dental fluorosis in infants and children

Creator:: Fein, Noelle J.
Abstract:: Although fluoride is an important trace element in the prevention of dental caries, it has a narrow range between beneficial and toxic effects. Excessive fluoride intake for example can cause dental fluorosis in infants and children whose teeth are still developing. The primary source of this unwanted fluoride has been...
Resource Type:: Masters Thesis
Full Text:: needed to achieve a desired effect. Therefore, it is important to be aware of sources of fluoride that

Direct effects of 2,3,7,8 tetrachlorodibenzo-p-dioxin on antigen-presenting cells and molecular signaling pathways in dendritic cells

Creator:: Ruby, Carl E.
Abstract:: In experimentally exposed mice, the environmental contaminant 2,3,7,8 tetrachlorodibenzo-p-dioxin (TCDD) produces significant suppression of adaptive immune responses at low doses. However, the underlying biochemical and cellular mechanisms of TCDD-induced immunotoxicity have remained elusive since the identification of these effects nearly 30 years ago. Antigen-presenting cells (APC) constitute various populations of...
Resource Type:: Dissertation
Full Text:: .................................................................................. Tab'e of Contents (Continued) Page Chapter 4: Effect of 2,3,7,8 Tetrachlorodibenzo-p-Dioxin on Nitric

Phylogenetics, population genetics, molecular epidemiology, and pathogenicity of the Douglas-fir Swiss needle cast pathogen Phaeocryptopus gaeumannii

Creator:: Winton, Loretta M.
Abstract:: A hierarchical series of studies, based mainly on molecular data, was conducted to elucidate the life history of the Douglas-fir Swiss needle cast pathogen Phaeocryptopus gaeumannii at macro- and micro-evolutionary scales. This information was then utilized to design and evaluate molecular diagnostic tools for use in studies on the epidemiology...
Resource Type:: Dissertation

Regulation of skeletal muscle protein degradation by u-calpain and development of a skeletal muscle-specific inducible expression system

Creator:: Xiao, Ying-Yi
Abstract:: The first goal of this study was to understand the role of u-calpain in skeletal muscle protein degradation in cultured muscle cells. Several strategies were developed to down-regulate endogenous u-calpain activity and m-calpain activity in rat myotubes. These included over-expression of antisense u-calpain (AnsL), dominant negative u-calpain (DN-u-CL), antisense 30K...
Resource Type:: Dissertation
Full Text:: showing the relevant domain position .......................................... 8 2.1. Effect of

Effects of alfalfa on uterine growth of ovariectomized prepubertal ewe lambs

Creator:: Sexson, Clinton
Abstract:: Alfalfa accumulates phytoestrogens and when ingested binds the estrogen receptor and induces morphological changes similar to endogenous estrogens. The objective of this study is to evaluate morphological changes in uteri, vulva, and teats of ovariectomized prepubertal ewe lambs. Eighteen prepubertal ewe lambs were ovariectomized in November 2000 and fed nonestrogenic...
Resource Type:: Masters Thesis
Full Text:: . Observer effect on mean teat score for all treated ewes on all days of observation

Chronic exposure of rodents to indole-3-carbinol and 3,3'-diindolylmethane : implications for drug metabolism, chemoprevention and human health

Creator:: Leibelt, Dustin A.
Abstract:: Indole-3-carbinol (I3C) is a naturally occurring plant alkaloid, found in significant concentrations in cruciferous vegetables such as broccoli and Brussels sprouts. I3C is an unstable compound that undergoes rapid oligomerization in an acidic environment to form higher order condensation products (I3C-ACPs), such as 3-3'-diindolylmethane (DIM). Both I3C and DIM are...
Resource Type:: Dissertation
Full Text:: DIM exposures in rodent models to further elucidate the effect these compounds might have on health

Dietary polyunsaturated fatty acids and immune responses in poultry

Creator:: Selvaraj, Ramesh Kumar
Abstract:: Three experiments were conducted to study the influence of dietary fatty acids on the production performance and immune response of chickens. In experiment I, forty day-old broiler chicks were fed diets containing 5% of either animal fat + conjugated linoleic acid (CLA) (Diet I), sunflower oil (Diet II), flax oil...
Resource Type:: Masters Thesis
Full Text:: . EFFECT OF FEEDING POLYUNSATURATED FATTY ACIDS 38 ON TISSUE FATTY ACID COMPOSITION AND ANTIBODY PRODUCTION

Central control of locomotor activity in juvenile salmonids : the role of corticotropin releasing hormone in the brain

Creator:: Clements, Shaun
Abstract:: The present study investigated the neurocrine and neuroendocrine control of locomotor activity, habitat choice, social behavior, and migratory behavior in juvenile chinook salmon (Oncorhynchus tshawytscha). This was achieved by the manipulation of three neurotransmitter systems; serotonin (5-HT), dopamine (DA), y-amino-n-butyric acid (GABA) and the neuropeptide corticotropin-releasing hormone (CRH). Chemicals were...
Resource Type:: Dissertation
Full Text:: both behavioral and physiological assays were used to evaluate the effects. These studies established

Assessment of oxidative stress in athletes during extreme endurance exercise using deuterium-labeled vitamin E

Creator:: Mastaloudis, Angela
Abstract:: To determine whether extreme endurance exercise induces lipid peroxidation, we studied 14 athletes (5 females: 9 males) during a 50 km ultramarathon (trial 1) and during a sedentary protocol (trial 2) one month later. At dinner the evening before the race (or sedentary trial), subjects consumed vitamin E labeled with...
Resource Type:: Masters Thesis
Full Text:: Reactive Oxygen Species Chemistry Under normal physiological conditions iron is tightly regulated and

Analysis of the effect of the potassium ion on fowl sperm motility

Creator:: Gamble, Kari
Abstract:: Fowl sperm are believed to be immotile prior to ejaculation. The concentration of potassium found in deferent duct fluid is approximately 8 times higher than that found in blood plasma, which is 5 mM in Gallus domesticus. The effect of ionic potassium on fowl sperm motion was tested in a...
Resource Type:: Masters Thesis
Full Text:: Master of Science in Animal Sciences presented June 14, 2004. Analysis of the Effect of the Potassium Ion

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:: ........................................................ . Effect of Mlhl status on cell survival to ionizing radiation ........................ . Mutagenic

Physiological impacts of Swiss needle cast on Douglas-fir

Creator:: Manter, Daniel K.
Abstract:: A series of studies, in three western Oregon Douglas-fir plantations, was conducted to understand the physiological impacts of Swiss needle cast on Douglas-fir physiology. Four aspects of the disease complex were investigated: fungal colonization and assessment, plant-water relations, carbon assimilation and interaction with climate. Several techniques were developed and used...
Resource Type:: Dissertation

Physiological response of Nitrosomonas europaea to oxytetracycline, chromium, and silver

Creator:: Schaerer, Morgan A.
Abstract:: Nitrosomonas europaea carries out the first step in the biological nitrogen removal process in wastewater treatment by oxidizing ammonia to nitrite. It has been shown to be sensitive to a wide range of contaminants. The antibiotic oxytetracycline and the heavy metals chromium and silver have been found in wastewater influent....
Resource Type:: Masters Thesis
Full Text:: 21, 2009. Title: Physiological Response of Nitrosomonas europaea to Oxytetracycline, Chromium

The effects of whole body vibration on the neuromuscular system

Creator:: Hong, Junggi
Abstract:: Recently, changes in human performance following whole-body vibration (WBV) training have been attributed to enhanced neuromuscular function. However, the exact neural and muscular mechanisms responsible for these changes remain less understood. The purpose of this study was to evaluate the acute and chronic effects of whole body vibration on the...
Resource Type:: Dissertation
Full Text:: paired reflex depression (PRD). The analysis for an acute effect consisted of a 2×2 (Group × Test

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

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

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

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