Isolation and characterisation of the potential immunomodulatory principles from Astragalus membranaceus

Watson, Robert James (2006) Isolation and characterisation of the potential immunomodulatory principles from Astragalus membranaceus. [Thesis (PhD/Research)] (Unpublished)

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Abstract

[Abstract]: This thesis describes an in-vivo evaluation of ethanolic extracts of Astragalus membranaceus and fractions derived from this extract administered either orally by gavage or by intraperitoneal injection to Balb/c mice. Total antibody titre was used as an indicator of humoral immune response. Cell mediated immune response was determined using Interferon-γ and Interleukin-12 as indicators. Additionally, mice were vaccinated with a killed Salmonella typhimurium vaccine, previously demonstrated to induce humoral response but not cell mediated immunity, to determine whether the acquired immune response was enhanced or suppressed. Serum was analysed for total antibody titre using an enzyme-linked immunosorbent assay. Serum and splenocyte culture supernatants were analysed for levels of interferon-γ and interleukin-12. No statistically significant differences were observed between groups either orally gavaged or intraperitoneally injected with extracts of Astragalus membranaceus, or orally gavaged with fractions derived from this extract when compared with the control groups.


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Item Type: Thesis (PhD/Research)
Item Status: Live Archive
Additional Information: Master of Philosophy thesis.
Depositing User: epEditor USQ
Faculty / Department / School: Historic - Faculty of Sciences - No Department
Date Deposited: 22 Dec 2008 06:16
Last Modified: 02 Jul 2013 23:11
Uncontrolled Keywords: Astragalus membranaceus; immune response
Fields of Research (FOR2008): 11 Medical and Health Sciences > 1107 Immunology > 110709 Tumour Immunology
06 Biological Sciences > 0608 Zoology > 060804 Animal Immunology
URI: http://eprints.usq.edu.au/id/eprint/4786

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