Digital Commons Network^™

Interactions Between Aquatic Chromogenic Bacteria And Pathogenic Vibrio Spp., John Louis Harris

Biological Sciences Theses & Dissertations

Interactions between populations inhabiting an ecosys­tem are responsible, in large part, for determining which species coexist in that ecosystem. In this study, interac­tions between selected Vibrio species, V. alginolyticus and V. anguillarum, and marine heterotrophic, chromogenic bac­teria in aquatic microcosms were investigated. The ultimate goal of this project was to evaluate the feasibility of ex­ ploiting competitive interactions as a means to biologically control growth of the pathogenic marine bacteria, V. alginolyticus and V. anguillarum. In the majority of ex­periments (14/16), if chromogenic species were allowed to develop stable populations before a Vibrio spp. was intro­duced into a …

Developmental Expression Of Pdgf, Tgf-A, And Tgf-J Genes In Preimplantation Mouse Embryos, Daniel A. Rappolee, Carol A. Brenner, Richard Schultz, David Mark, Zena Werb

Department of Obstetrics and Gynecology Research Publications

Control of growth and differentiation during mammalian embryogenesis may be regulated by growth factors from embryonic or maternal sources. With the use of single-cell messenger RNA phenotyping, the simultaneous expression of growth factor transcripts in single or small numbers of preimplantation mouse embryos was examined. Transcripts for platelet-derived growth factor A chain (PDGF-A), trans- forming growth factor (TGF)-a, and TGF- 1, but not for four other growth factors, were found in whole blastocysts. TGF-cx, TGF-(31, and PDGF antigens were detected in blastocysts by immunocytochemistry. Both PDGF-A and TGF-a were detected as maternal transcripts in the unferilized ovulated oocyte, and again …

Metabolic Bone Disease In Children, Michael P. Whyte

Henry Ford Hospital Medical Journal

No abstract provided.

Parathyroid Hormone-Related Disorders, John P. Bilezikian, T. J. Martin

Henry Ford Hospital Medical Journal

No abstract provided.

Vitamin D Metabolism In Health And Disease, Norman H. Bell

Henry Ford Hospital Medical Journal

No abstract provided.

Bone Remodeling, A. M. Parfitt

Henry Ford Hospital Medical Journal

No abstract provided.

Allied Disciplines, Stephen M. Krane

Henry Ford Hospital Medical Journal

No abstract provided.

Metabolic Bone Disease And The Hip, Robert Lindsay

Henry Ford Hospital Medical Journal

No abstract provided.

Miscellaneous Disorders Of Calcium And Bone Metabolism, Gregory R. Mundy

Henry Ford Hospital Medical Journal

No abstract provided.

Commencement Program 1988 (Summer Conferring Of Degrees), Loma Linda University

Commencement Programs

CONTENTS

3 | The Academic Procession

4 | Conferring of Degrees

6 | Candidates for Degrees

16 | Awards

An Analysis Of Protein-Ligand Interactions For Enzyme Ii-Mannitol From Escherichia Coli, Brent Lee Wood

Loma Linda University Electronic Theses, Dissertations & Projects

Enzyme II^mtl of Escherichia coli was purified from mtlA-overexpressing E. coli strain LJ1112 extraction of isolated membranes with deoxycholate, followed by hexyl agarose and ω-amino hexyl agarose chromatography in Lubrol PX. A 10-fold increase in total pure protein and 2.5-fold increase in specific activity over previously reported procedures was obtained. Tryptic fragments of Enzyme II^mtl were also purified and identified as the membrane and cytoplasmic domains by protein sequencing and SDS-PAGE. The fluorescence spectrum of Enzyme II^mtl suggested that two populations of tryptophan residues existed with emission maxima at 322 and 344 nm, corresponding to buried …

The Inhibition Of Bone Formation Occurring Under Weightlessness : The Effect Of Skeletal Unloading On Serum Levels Of A Bone-Derived Growth Factor, Jean D. Sibonga

Loma Linda University Electronic Theses, Dissertations & Projects

A deleterious effect of spaceflight on human health is the loss of bone associated with the prolonged lack of gravitational stress on the skeleton. A potential for bone loss is indicated by the hypercalciuria and decreased heel bone density determined in Skylab astronauts. Histological studies of juvenile laboratory rats in actual spaceflight and in simulation models document a suppression of bone formation with little alteration of bone resorption. The mechanism for net bone loss needs to be defined in order to develop measures for its prevention or correction.

Skeletal growth factors, which may mediate coupling and locally regulate bone volume …

Age-Related Changes In Meissner Corpuscles Of Diabetic Mice As Observed By Electron Microscopy, Vicky R. Ras

Loma Linda University Electronic Theses, Dissertations & Projects

Light touch and low-frequency vibration sense are often impaired in diabetic patients. Meissner corpuscles are distally located mechanoreceptors that respond to these stimuli. Peripheral sensory neuropathy in diabetes progresses from distal to proximal, therefore, Meissner corpuscles are ideally suited to study diabetic neuropathy in the C57BL/Ks (db/db) mouse.

Corpuscles from the forepaw digital pads of 9 diabetic and 9 nondiabetic littermates were studied by electron microscopy. These were divided into 3 age groups; 2.5 months, 10 months, and 17 months old.

Ultrastructural changes observed within various receptor components were myelin figures, multivesicular bodies, vacuoles, basal lamina duplication, abnormal and enlarged …

The Gli-Kruppel Family Of Human Genes, John M. Ruppert, Kenneth W. Kinzler, Albert J. Wong, Sandra H. Bigner, Fa-Ten Kao, Martha L. Law, Hector Seuanez, Stephen J. O'Brien, Bert Vogelstein

Biology Faculty Articles

Previous characterization of GLI, a gene found to be amplified and expressed in a subset of human brain tumors, revealed the presence of five tandem zinc fingers related to those of Krüppel (Kr), a Drosophila segmentation gene of the gap class. We have used the GLI cDNA as a molecular probe to isolate related sequences from the human genome. Partial characterization of six related loci, including sequence determination, expression studies, and chromosome localization, revealed that each locus could encode a separate finger protein. The predicted proteins all had similar H-C links, i.e., a conserved stretch of 9 …

Comparison Of Five Different Serological Assays For Determination Of Antibody Levels Against Herpes Virus Type 1 And 2, Murat Sami Küçük

Loma Linda University Electronic Theses, Dissertations & Projects

To aid in the diagnosis of certain clinical types of Herpes virus infections, we evaluated and compared five serological methods for measuring Herpes virus antibody. The five tests we compared are complement fixation test (CF), indirect immunofluorescent antibody assay (IFA), anticomplementary immunofluorescent assay (ACIF), enzyme linked immunoassay test (ELISA), and the latex agglutination test (LA). The main objective of this study was to establish which of the currently available serologic tests was best suited for clinical laboratory use and which may then replace the complement fixation test. In the comparative testing, one hundred twenty serum samples were divided into four …

Insulin Stimulates The Dephosphorylation And Activation Of Acetyl-Coa Carboxylase., Lee A. Witters, Thomas D. Watts, Diana L. Daniels, Joseph L. Evans

Dartmouth Scholarship

The mechanism underlying the ability of insulin to acutely activate acetyl-CoA carboxylase [acetyl-CoA: carbon-dioxide ligase (ADP-forming), EC 6.4.1.2; AcCoA-Case] has been examined in Fao Reuber hepatoma cells. Insulin promotes the rapid activation of AcCoACase, as measured in cell lysates, and this stimulation persists to the same degree after isolation of AcCoACase by avidin-Sepharose chromatography. The insulin-stimulated enzyme, as compared with control enzyme, exhibits an increase in both citrate-independent and -dependent activity and a decrease in the Ka for citrate. Direct examination of the phosphorylation state of isolated 32P-labeled AcCoACase after insulin exposure reveals a marked decrease in total enzyme phosphorylation …

Camp Antagonizes Interleukin 2-Promoted T-Cell Cycle Progression At A Discrete Point In Early G1., Kirk W. Johnson, Bruce H. Davis, Kendall A. Smith

Dartmouth Scholarship

T lymphocytes are stimulated to proliferate in an autocrine/paracrine manner by the lymphokine interleukin 2 (IL-2). In seeking further insight into the mechanisms by which IL-2 induces progression of T cells through the G1 phase of the cell cycle, studies were performed with agents that increase cellular adenosine 3',5'-cyclic monophosphate (cAMP), a well-known inhibitor of lymphocyte growth. The addition of dibutyryl-cAMP, cholera toxin, forskolin, or 3-isobutyl-1-methylxanthine to an IL-2-dependent murine T-cell line evoked a dose-related suppression of S-phase transition without affecting cellular viability. Moreover, elevation of cAMP levels led to an accumulation of uniformly small cells, suggesting an arrest in …

Computer Analysis Of Cross Sections Of Leaves Of Chrysothamnus Taxa And Their Relation To Environmental Conditions, J. Huang, W. M. Hess, D. J. Weber, E. D. Mcarthur, S. E. Meyer, R. Seegmiller

Great Basin Naturalist

Thirty-eight accessions of 20 taxa (species and subspecies) of Chrysothamnus from a range of environments were grown in a uniform garden. During mid-June, terminal and lateral leaves were removed, fixed, and processed for light-microscopy studies. Area and perimeter measurements of ink tracings of midleaf vein cross sections were measured using computer-scan techniques. Leaf area and perimeter were compared with vein perimeter and area measurements. Area and perimeter of these Chrysothamnus leaves varied in response to the environment at the collection location. Plants native to hot, dry conditions had small, thick leaves, whereas plants native to cooler, more mesic conditions had …

Phloretin And Phlorizin Derivative Containing Compounds, Donald F. Diedrich, Susanne L. Diedrich

Pharmacology and Nutritional Sciences Faculty Patents

Compounds including phloretin and/or phlorizin derivatives coupled to an undigestible and non-absorbable matrix are provided. The compounds have pharmacological efficacies. They inhibit sugar uptake from the intestine and may be used in composition form in methods for treating diabetes and for promoting weight loss. A method for the manufacture of these compounds and a novel intermediate phlorizin derivative for making these compounds are also disclosed.

Foraging Patterns Of Two Syngnathid Fishes: Importance Of Harpacticoid Copepods, Kevin Tipton, Susan S. Bell

Integrative Biology Faculty and Staff Publications

The diets of juvenile (mm) Syngnathus scovelli and of Hippocampus zosterae, abundant members of a resident fish community in a Thalassia testudnum seagrass bed in Tampa Bay, Florida, were examined from Apnl to October 1984. Harpacticoid copepods comprised most of the diet, both in terms of percent number and percent biomass, for the smaller size classes of S. scovelli and for H. zosterae, and harpacticoids generally had the highest index of relative importance (IRI) for both syngnathids. S. scovelli displayed ontogenetic switching to larger food items, such as amphipods, shrimp and crustacean eggs. Harpacticus sp. 1 was the …

Summer 1988, Southwestern Oklahoma State University

The Sig

The Sig Newsletter from the Southwestern Oklahoma State University College of Pharmacy - Summer 1988

Lowell D. Holmes's Review Of Paul T. Baker, Joel M. Hanna, And Thelma S. Baker's The Changing Samoans: Behavior And Health In Transition, Lowell D. Holmes

Pacific Studies

No abstract provided.

K+ Efflux In Nih Mouse 3t3 Cells And Transformed Derivatives: Dependence On Extracellular Ca2+ And Phorbol Esters., Martin Lubin

Dartmouth Scholarship

In culture medium deficient in Ca2+, NIH mouse 3T3 cells lose K+, gain Na+, and stop growing. A marked increase in the rate of K+ efflux accounts for this loss; Na+, K+-ATPase pump activity increases but does not fully compensate for enhanced K+ efflux. Phorbol esters and cycloheximide inhibit K+ loss in Ca2+-deficient medium. Phorbol esters inhibit K+ efflux from human fibroblasts as well, even at physiological levels of Ca2+. Two cell lines derived from NIH-3T3, one transformed by a simian virus 40 deletion mutant, the other by the polyoma virus oncogene encoding the middle-sized tumor antigen, retain K+ and …

1988 Commencement For Jefferson Medical College And College Of Graduate Studies

Sidney Kimmel Medical College Commencements

No abstract provided.

Osteoporosis As A Community Health Problem: Lessons Learned From Studying Hypertension, Michael Kleerekoper, Dorothy A. Nelson

Henry Ford Hospital Medical Journal

Campaigns to increase the medical and lay communities' awareness and understanding of the problems of unrecognized and untreated hypertension have led to a progressive decline in morbidity and mortality from hypertension-related diseases. While osteoporosis is also a community health problem, educational and awareness campaigns are still in their infancy and decades may pass before these result in a declining morbidity and mortality from osteoporosis. We identify areas where concepts learned from years of hypertension research might be applicable lo the study of osteoporosis as a community health problem and thereby lessen the time needed to effect a declining morbidity and …

Significance Of Antinuclear Antibody (Ana) Immunofluorescent Patterns And Titers In Systemic Lupus Erythematosus Nephritis, Syed Akbar, Abel I. Tello, Usana Luvira, Rollin Heinzerling, Raymond Romanski, Nathan W. Levin, Thomas K. H. Burnham

Henry Ford Hospital Medical Journal

Seventy-three patients with systemic lupus erythematosus (SLE) nephritis were studied for up to eight years using sequential serologic and renal function tests and renal biopsies. Antinuclear antibody (ANA) patterns and titers were classified into two systems: nonparticulate and particulate. We found a close relationship between disease activity and changes in titers of the nonparticulate peripheral homogeneous system. These changes predicted imminent flare-up or immunosuppressive induced remission of nephritis. Patients with the thready ANA pattern (part of the particulate system) as the main pattern showed a predominant association with membranous glomerulopathy and better renal function than those without threads. The association …

Obesity And Hypertension: A Review, Khaled Imam, James R. Sowers

Henry Ford Hospital Medical Journal

Hypertension is an important risk factor for cardiovascular morbidity and mortality. Obesity is often associated with hypertension. This strong association can be attributed to several pathophysiological changes which occur in obese subjects: increased salt and caloric intake, increased blood volume, increased cardiac output, increased basal as well as stress-stimulated sympathetic nervous system activity, hyperinsulinemia, and a relative increase in renin and aldosterone. Obesity usually increases the preload and causes an eccentric cardiac hypertrophy, while hypertension increases the afterload and causes concentric cardiac hypertrophy. When both obesity and hypertension occur in the same patient (as is often the case), they present …

Morbidity And Treatment Of Clinically Important Obesity: An Internal Medicine Perspective, J. David Fachnie

Henry Ford Hospital Medical Journal

Obesity is defined as an excess storage of energy in the form of fat. The internist generates a differential diagnosis of etiologic factors and examines the patient carefully. Obese persons are counseled on all medical risks of obesity. Choices for treatment vary according lo the severity of the obesity, and alternative dietary treatments include a balanced-deficit diet or a very low calorie diet. Weight loss can be predicted by applying specified equations. With severe obesity, multidisciplinary treatment is needed. Anorexic agents have limited value because of their side effects and because of weight increase after discontinuing therapy. Obesity is not …

Menno-Knight, June 1988, Mennonite College Of Nursing

Menno-Knight

Student newsletter of the Mennonite School/College of Nursing.

Nursing Malpractice--The Nurse's Duty To Follow Orders, Barbara R. Benninger

West Virginia Law Review

No abstract provided.