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dc.contributor.advisorKrishnamoorthy, Ramesh
dc.contributor.advisorMitra, Ashim K.
dc.contributor.authorMelson, Josh
dc.date.accessioned2011-08-09T14:09:32Z
dc.date.available2011-08-09T14:09:32Z
dc.date.issued1993
dc.identifier.urihttp://hdl.handle.net/10920/23146
dc.descriptionv, 34 p.en_US
dc.description.abstract[9-(2-hydroxyethoxymethyl)guanine] or acyclovir (ACV) is a nucleoside analog that has high antiviral activity for herpes simplex virus (HSV) (Laskin, 1984). While oral dosage forms have been successful in ceasing viral shedding in genital infections, oral forms of ACV do not reach adequate levels to inhibit viral replication in the CNS (Corey, 1985). This is due to 1) low bioavailability of ACV to the plasma following oral administration and 2) restriction of transport of the relatively polar ACV to the brain by the blood brain barrier (BBB). We synthesized ester prodrugs of ACV to create a prodrug of ACV that could cross the BBB by passive diffusion thereby increasing concentration of ACV in the brain. Lipophilicity studies indicate that esters with chains of C5 and longer should be able to diffuse passively across the BBB. Ester prodrugs must be reconverted back to the parent form to be active. Use of the inhibitor PMSF showed significant inhibition on the degradation of the esters implying that esterase activity is present, reconverting the prodrug back to the active form. Esterase activity was found to be dependent upon the structure of the ester substituent. Lipophilicity increases were accompanied with decreases in aqueous solubility which is thought to restrict bioavailability of an oral dosage (Krenitsky,1986). A scheme to enhance solubility by removal of an exocyclic amino group was not found to produce increases in solubility adequate for an oral form.en_US
dc.description.sponsorshipDepartment of Industrial and Physical Pharmacy. Purdue University. West Lafayette, Indiana
dc.format.mimetypeapplication/pdf
dc.language.isoen_USen_US
dc.publisherKalamazoo Collegeen_US
dc.relation.ispartofKalamazoo College Biology Senior Individualized Projects Collection
dc.relation.ispartofseriesSenior Individualized Projects. Biology;
dc.rightsU.S. copyright laws protect this material. Commercial use or distribution of this material is not permitted without prior written permission of the copyright holder.
dc.titleTargeting of Acyclovir to the Brain via a Lipophilic and Water Soluble Prodrugen_US
dc.typeThesisen_US
KCollege.Access.ContactIf you are not a current Kalamazoo College student, faculty, or staff member, email dspace@kzoo.edu to request access to this thesis.


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  • Biology Senior Individualized Projects [1549]
    This collection includes Senior Individualized Projects (SIP's) completed in the Biology Department. Abstracts are generally available to the public, but PDF files are available only to current Kalamazoo College students, faculty, and staff.

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