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dc.contributor.authorAlrajab, Jassem M.en_US
dc.date.accessioned2020-11-05T16:04:25Z
dc.date.available2020-11-05T16:04:25Z
dc.date.issued1990
dc.date.submitted1990
dc.identifier.other(OCoLC)21589020
dc.identifier.otherb1804802x
dc.identifier.urihttps://hdl.handle.net/2144/41592
dc.descriptionPLEASE NOTE: This work is protected by copyright. Downloading is restricted to the BU community: please click Download and log in with a valid BU account to access. If you are the author of this work and would like to make it publicly available, please contact open-help@bu.edu.en_US
dc.descriptionColored photographs included.en_US
dc.descriptionThesis (D.Sc.D.)--Boston University, Henry M. Goldman School of Graduate Dentistry, 1990 (Oral Biology)en_US
dc.descriptionBibliography : leaves 86-99.en_US
dc.description.abstractThe purpose of this study is the identification and characterization of those salivary proteins which constitute precursor proteins to the acquired enamel pellicle. The goal of this investigation is to identify proteins in pellicles formed in vitro by the adsorption of pure glandular secretions to hydroxyapatite powder (HA). Either parotid or submandibular secretions were incubated with HA at a ratio of 5 mg/mlof saliva for 24 hours, in the presence of 0.02% NaN3. The suspension was centrifuged at 27,000 x g, and the pellet was washed with 0.2M NaCl, pH 7.5 and stirred at room temperature for 24 hours in 0.2M EDTA pH 7.5 to solubilize the mineral phase. The adsorbed protein was recovered following dialysis against water and lyophilization. The proteins were characterized by means of electrophoresis, using 7.5% polyacrylamide discontinuous gels, gradient SDS-PA gels, and Isoelectric focusing gels. Further characterization was carried out by means of C18 reversed phase high performance liquid chromatography. The amino acid compositions of these proteins were also determined. These studies led to the identification of specific phosphoproteins, namely proline-rich proteins, statherin, and histatins as major constituents of the in vitro pellicle derived from both parotid and submandibular saliva. In addition, minor components were identified in submandibular derived pellicle.en_US
dc.language.isoen_US
dc.publisherBoston Universityen_US
dc.rightsThis work is protected by copyright. Downloading is restricted to the BU community. If you are the author of this work and would like to make it publicly available, please contact open-help@bu.edu.en_US
dc.subjectDental enamelen_US
dc.subjectSalivary proteinsen_US
dc.titleCharacterization studies of the acquired enamel pellicle formed in vitroen_US
dc.typeThesis/Dissertationen_US
etd.degree.nameDoctor of Science in Dentistryen_US
etd.degree.leveldoctoralen_US
etd.degree.disciplineOral Biologyen_US
etd.degree.grantorBoston Universityen_US


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