Medical Specialties Commons^™

Inhibition Of Growth Of Toxoplasma Gondii In Cultured Fibroblasts By Human Recombinant Gamma Interferon., E. R. Pfefferkorn, Paul M. Guyre

Dartmouth Scholarship

The growth of Toxoplasma gondii in cultured human fibroblasts was inhibited by recombinant human gamma interferon at concentrations of 8 to 16 U/ml. The interferon was titrated by observing a total inhibition of parasite plaque formation 7 days after infection. Inhibition of the growth of T. gondii in the early days after infection was measured by marked reductions in the incorporation of radioactive uracil, a precursor that can only be used by the parasites. This assay showed that when cells were pretreated with gamma interferon for 1 day and then infected, inhibition of T. gondii growth could be readily detected …

Body Weight Changes Throughout The Menstrual Cycle And Their Effect Upon The Components Of Body Composition, Lovina M. Query

Dissertations and Theses

Research has shown that women experience fluctuations in body weight (BW) due to water retention and/or other processes at various times in the menstrual cycle. The purpose of this study is to measure women repeatedly throughout the course of one menstrual cycle and

(1) to confirm whether significant fluctuations in weight occur at various times and

(2) to determine whether there are significant differences in the components of body composition by hydrostatic weighing which are related to any changes in BW.

It was concluded that while significant fluctuations in BW occur at certain times in the menstrual cycle, the changes …

The Zinc Status Of Pregnant Vegetarian Women, Michelle J. Abu-Assal

Loma Linda University Electronic Theses, Dissertations & Projects

The zinc status of twelve lacto-ovo-vegetariah pregnant women and seventeen non-vegetarian pregnant women was evaluated. Zinc intakes were calculated from three-day dietary records and twenty-four hour dietary histories. Plasma zinc levels were drawn during the last trimester of pregnancy and approximately ten weeks postpartum. Gestational age at birth, birthweight, and APGAR scores of the infants born were obtained from the medical charts. Dietary zinc intakes for the vegetarians (10.5 ± 4.0 mg) did not differ significantly from the intakes of the non-vegetarians (10.9 ± 3.0 mg). The vegetarian last trimester plasma zinc levels (47.9 ± 12.4 mcg/dl) and postpartum plasma …

The Coronary Distribution Zone : Mathematical Modelling Of The Left Ventricular Epicardial Surface For Area Calculation, Three-Dimensional Rotaton And Display, S. Matts E. Sjölander

Loma Linda University Electronic Theses, Dissertations & Projects

A computer model of the left ventricular (LV) epicardial surface was developed from Jang’s truncated ellipsoidal model, which has a minor to major axis ratio of 6:10. The model was applied in calculating the area of a segment of the myocardium, jeopardized by an impending occlusion of its associated artery. The endangered segment of the LV muscle was also visualized in different projections by rotations in three space and graphical displays simulating the three dimensions.

The area formula for the surface of the ideal model , a truncated prolate spheroid, was derived and used in producing maps for manual calculations …

Lipoprotein Lipase Inhibitor Removal During Ultrafiltration Of Renal Failure Patients, Alisa Minear

Loma Linda University Electronic Theses, Dissertations & Projects

Plasma samples were obtained from seven hypertriglyceridemic (>150 mg/dl) chronic renal failure patients before and after regular hemodialysis. The effect of the plasma on the lipolytic activity of bovine milk lipoprotein lipase was investigated. The lipoprotein lipase activity, as measured by release of C¹⁴-labeled free fatty acid from triglyceride, was decreased 8-67% when incubated with uremic plasma as compared to the control plasma (44 mg/dl triglyceride). The inhibition noted prior to hemodialysis did not appear to be alleviated by the dialysis but subsequent treatment with an isolated ultrafiltration technique did appear to remove an inhibitory substance as …

Cell Mediated Immunity By Cytotoxicity Assay And The Effect Of Corynebacterium Parvum And Radiation On Mice Bearing Herpes-Induced Tumors, Robert B. Stagg

Loma Linda University Electronic Theses, Dissertations & Projects

Cell mediated immune (CMI) cytotoxic reactivity of Balb/c mice against H238 cells, a Herpes simplex virus (HSV) Type 2 - induced sarcoma, was measured by the ¹²⁵IUdR release assay. The Balb/c mouse response to the growing HSV-induced tumor, treated with radiation and , was measured by survival rate, tumor growth and immune cytotoxicity of spleen and peritoneal exudate cells (PEC) as determined by ¹²⁵IUdR release assay. Subcutaneous (s.c.) inoculation of 1 x 10⁶ H238 cells (high dose) produced progressive tumor growth while s.c. inoculation of 1 x 10⁴ H238 cells (low dose) produced no tumors. A …

Maine Mental Health Annual Review And Progress Report 1977, Department Of Mental Health And Corrections

Maine Collection

Maine Mental Health Annual Review and Progress Report 1977

State of Maine., Department of Mental Health and Corrections, Augusta, Maine, 1977.

George A. Zitnay, Commissioner

Contents: Preface / Administrative Part / Services and Facilities Part

Measurement Of Permeability Of The Cell Membrane To Water, Richard Moore, Frederick Thornburgh, Donggyu Jin

Journal of the Minnesota Academy of Science

The water permeability was measured for blood cells from normal subjects and for blood cells from patients with leukemia. The method of measurement of the kinetics of water influx employed a stopped flow apparatus. The method of calculation of results was based on irreversible thermodynamics. The measurements and calculations were both performed with the assistance of a computer. The water permeability of the leukemic cells was decreased from normal, and the values were more variable than normal. Leukemia changes the structure of the cell membrane.

Patterns Of Fatty Acid Release From Endogenous Substrates By Human Platelet Homogenates And Membranes, A Derksen, P Cohen

Faculty, Staff and Students Publications

We describe a method for measuring the release of fatty acids from endogenous substrates of human platelet homogenates and membranes. The method depends on the availability of lipids whose fatty acids are odd-chained and therefore suitable as internal reference compounds that, at the time of lipid extraction, can be added to an incubation to permit subsequent quantification of the content of free fatty acids or fatty acids esterified to specific lipids. We found four types of lipolytic activities in human platelets. In homogenates at pH 4.0 a triglyceride lipase operated as shown by the synchrony of triglyceride degradation and release …

Atomic Models For The Polypeptide Backbones Of Myohemerythrin And Hemerythrin, W A Hendrickson, K B Ward

Faculty, Staff and Students Publications

Background: The novel coronavirus severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spread rapidly after its identification in December 2019 to cause a global pandemic. The respiratory tract is the primary site of infection, and there is a large range in the severity of respiratory illnesses caused by the virus. Defining molecular and cellular factors for protection from severe disease and death has been a goal to better understand and to predict and mitigate the effects of SARS-CoV-2 and future coronaviruses.

Objective: Despite well-known susceptibilities to respiratory viral infections, respiratory allergy and allergic asthma have not been identified as risk factors …

A Follow-Up Study Of Patients With Chronic Obstructive Lung Disease And Their Practice Of The Breathing Pattern, A. Theodora Djagia

Loma Linda University Electronic Theses, Dissertations & Projects

The purpose of this descriptive survey was to do a follow-up study on patients with COPD to find out to what extent these patients have followed instruction to continue exercising the abdominal and diaphragmatic muscles, with the utilization of a breathing pattern. Literature was reviewed which revealed contradictory findings in regard to the physiological benefits of the use of the breathing pattern. Nine patients met the criteria and signed a consent sheet to be visited in their homes. An Observation Data Sheet and Interview Guide were the tools used to collect data. A point system was constructed and used with …

The Development Of Electrophysiological Techniques Allowing "In Situ" Measurement Of Electrical Changes Within Smooth Muscle Cells Of Mesenteric Micro-Vessels, William J. Willems

Master's Essays (1922 - )

The primary objective or this study is essentially to acquire further knowledge of the factors involved in the nervous and humoral control of vascular smooth muscle tone. The relative importance of the nervous and endogenous vasotropic humoral control or vasomotor tone under normal conditions as well as under conditions or hypotension can be evaluated, at least in part, by observing the electrical activity occurring in single vascular smooth muscle cells of the mesenteric microcirculation. This thesis describes: 1) the development of electrophysiological methods for the measurement of such activity in ''in situ" micro-vessels with circulation and innervation intact, and 2) …

Sex And The Transurethral Prostatectomy, Edward T. Moon

Loma Linda University Electronic Theses, Dissertations & Projects

The purpose of this research was to find out what effects the TURP has on ejaculatory ability, frequency of coitus and the emission of seminal fluid. The sample consisted of 50 men, age 46-65, who were married, and had no cancer or other possible physical causes for impotence. Each man was personally interviewed.

Forty-six patients (92 percent) were able to ejaculate. A decrease in the frequency of coitus was reported by 40 per cent of the men. A normal ejaculation of seminal fluid was experienced by thirteen (26 percent) of the men. Considering all the changes in the sexual function …

Effect Of Isocaloric Unsaturated Fats On Serum Cholesterol Of Patients Treated With Hypocholesterolemic Agents, Yvonne Marie Hatley

Loma Linda University Electronic Theses, Dissertations & Projects

The effect of a high unsaturated-low saturated fat diet on serum cholesterol levels were studied. Subjects were clinic patients receiving the following hypocholesterolmeic agents: triparanol (MER-29), diildothyroacetic acid (Diac), dextrothyroxine (d-T₄) and 3-methoxy-16, alpha-methyl-1,3,5, (10)-estratriene-16 beta, 17 beta-diol (Manvene or Anvene).

Fifteen hypercholesterolemic patients, eleven of whom were diabetic, were placed on diets with prescribed amounts of unsaturated fat. The caloric distribution was 40 per cent carbohydrate, 20 per cent protein, and 40 per cent fat. The level of unsaturated fat was 70 per cent of the total fat.

Seventy-one per cent of the patients on the hypocholesterolemic …

Production Of Convulsions In Rats By High Frequency Electrical Currents (Radar), George M. Austin, Steven M. Horvath

The Dr. George M. Austin Neurology Research Collection

Production of Convulsions in Rats by High Frequency Electrical Currents (Radar). George M. Austin and Steven M. Horvath. From the Harrison Dept. of Surgical Research, the Dept. of Neurosurgery, and the Dept. of Physical Medicine, Hospital of the University of Pennsylvania, Graduate School of Medicine, University of Pennsylvania, [1949?]. 1 original manuscript with handwritten notes, 3 plates, 17 [+ 8] pg.

Quantitative Sugar Estimations In Pleural Fluid - An Aid To Diagnosis, John E. Peterson

Medical Arts and Sciences: A Scientific Journal of the College of Medical Evangelists

In a study of 33 cases of serous effusion it would appear that determination of the sugar content of the pleural fluid may provide an early clue to the etiologic diagnosis.

Intracranial Surgery, William T. Grant

Medical Arts and Sciences: A Scientific Journal of the College of Medical Evangelists

No abstract provided.

The Influence Of The Brain Upon The Liver As A Blood Concentrating Organ In Fever., Benjamin F. Aydelotte 1899-1956

Electronic Theses and Dissertations

No abstract provided.

Replicating Single-Cycle Adenovirus Vectors Generate Amplified Influenza Vaccine Responses, Catherine M. Crosby, William E. Matchett, Stephanie S. Anguiano-Zarate, Christopher A. Parks, Eric A. Weaver, Larry R. Pease, Richard J. Webby, Michael A. Barry

Nebraska Center for Virology: Faculty Publications

Head-to-head comparisons of conventional influenza vaccines with adenovirus (Ad) gene-based vaccines demonstrated that these viral vectors can mediate more potent protection against influenza virus infection in animal models. In most cases, Ad vaccines are engineered to be replication-defective (RD-Ad) vectors. In contrast, replication-competent Ad (RC-Ad) vaccines are markedly more potent but risk causing adenovirus diseases in vaccine recipients and health care workers. To harness antigen gene replication but avoid production of infectious virions, we developed “single-cycle” adenovirus (SC-Ad) vectors. Previous work demonstrated that SC-Ads amplify transgene expression 100-fold and produce markedly stronger and more persistent immune responses than RD-Ad vectors …