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xi, 91 leaves : ill. Typescript Thesis (M.S.)--University of Oregon Includes vita and abstract Bibliography: leaves 87-91 Another copy on microfilm is located in Archives University of Oregon theses, Dept. of Biology, M.S., 1982

No description available.

Thesis (Ph. D.)--Oregon State University, 1991. / Includes mounted photographs. Typescript (photocopy). Includes bibliographical references (leaves 112-119). Also available on the World Wide Web.

xiv, 86 p. / Print copies of this title are available through the UO Libraries under the call numbers: SCIENCE QP99.3.H4 S35 2002; and: OIMB QP99.3.H4 S35 2002 / Petrolisthes cinctipes survives in a high-mid intertidal habitat in which physicochemical changes are more drastic compared to the low intertidal/subtidal zone of Petrolisthes eriomerus. This study examined how the hemocyanins of these two species differed functionally in response to physicochemical factors.

viii, 54 leaves : ill. ; 28 cm Notes Typescript Thesis (M.S.)--University of Oregon, 1985 Includes vita and abstract Bibliography: leaves 52-54 Another copy on microfilm is located in Archives

Typescript. Includes vita and abstract. Bibliography: Includes bibliographical references (leaves 151-160). Description: xiii, 160 leaves : ill. ; 29 cm.

Selenium (Se) has received a lot of attention for its antioxidant and immune modulating properties. Yet, comparably few studies have focused on the horse. Therefore the objectives of this research were to evaluate the influences of Se status on immune function and antioxidant defense in horses. Twenty eight horses were allocated to one of 4 dietary Se treatments: low (LS), adequate (AS), high organic (SP) and high inorganic (SS). First, horses assigned to LS, SP and SS were depleted of Se and received a low Se diet (0.07 ppm Se) for 35 wk, while AS received an adequate Se diet (0.14 ppm Se). During week 28 to 35 immune function was evaluated using a vaccine challenge with keyhole limpet hemocyanin (KLH) and equine influenza as antigens. Then, a 29 wk repletion phase followed. The LS and AS received the same diets described above while SP received an organic Se supplemented diet (0.3 ppm; Sel-Plex, Alltech, Nicholasville, KY) and SS an inorganic Se supplemented diet (0.3 ppm; sodium selenite). Immune function was assessed using a vaccine challenge with ovalbumin (OVA) and equine influenza as antigens during week 22 to 29. Samples collected throughout the depletion and repletion phases were used to assess change in Se status, antioxidant status and oxidative stress. Finally, a mild exercise test served to assess exercise induced oxidative stress. The experimental model responded as hypothesized, evaluated by blood Se and glutathione peroxidase (GPx) activity. Upon vaccination with KLH, antibody response was faster in AS than LS. Antigen specific mRNA expression of T-bet was also higher for AS than LS. Following OVA vaccination humoral and cell-mediated vaccination responses were similar across treatments. However, non-specific stimulation of peripheral blood mononuclear cells indicated suppressed mRNA expression of selected cytokines for LS compared to AS, SP and SS. Antioxidant capacity and oxidative stress were unaffected by change in Se status. A difference in GPx response post exercise was also noted between SP and SS. Low Se status impaired some measures of immune function. Supplementation at 0.3 ppm may benefit horses as indicated by higher GPx activity in idle and exercised horses.

Thesis (Ph. D.)--University of Oregon, 2007. / Typescript. Includes vita and abstract. Includes bibliographical references (leaves 179-196). Also available for download via the World Wide Web; free to University of Oregon users.

Typescript. Includes vita and abstract. Bibliography: Includes bibliographical references (leaves 93-101). Description: xi, 101 leaves : ill. ; 29 cm.