• Login
    View Item 
    •   Home
    • Theses and Dissertations
    • Theses and Dissertations
    • View Item
    •   Home
    • Theses and Dissertations
    • Theses and Dissertations
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of TUScholarShareCommunitiesDateAuthorsTitlesSubjectsGenresThis CollectionDateAuthorsTitlesSubjectsGenres

    My Account

    LoginRegister

    Help

    AboutPeoplePoliciesHelp for DepositorsData DepositFAQs

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    MOLECULAR MECHANISM OF HIV-1 TAT INDUCED NEURONAL DYSFUNCTION

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Thumbnail
    Name:
    TETDEDXBagashev-temple-0225E-1 ...
    Size:
    2.836Mb
    Format:
    PDF
    Download
    Genre
    Thesis/Dissertation
    Date
    2014
    Author
    Bagashev, Asen
    Advisor
    Sawaya, Bassel E.
    Kirby, Lynn
    Committee member
    Abood, Mary Ellen, 1958-
    Persidsky, Yuri
    Sullivan, Kathleen E. (Professor of pediatrics)
    Department
    Cell Biology
    Subject
    Neurosciences
    Biology, Molecular
    Virology
    Permanent link to this record
    http://hdl.handle.net/20.500.12613/2573
    
    Metadata
    Show full item record
    DOI
    http://dx.doi.org/10.34944/dspace/2555
    Abstract
    In the early years of the AIDS epidemic, being infected with the virus that causes the disease was considered a virtual death sentence. But with the development of highly active antiretroviral therapy (HAART), many infected with HIV-1 are living much longer. In fact, it is estimated that by 2015, about half of all HIV-positive individuals will be older than 50. Yet those over 50 also progress to AIDS faster than adults in their 20s or 30s. And those in the younger age bracket, even those responding well to antiretroviral therapy, still exhibit illnesses and clinical conditions commonly associated with older people, such as HIV-associated neurocognitive disorders (HAND), certain cancers, liver and bones diseases. For the most part, the reasons for this have remained a mystery. However, one may ask, how in the absence of circulating detected virus, viral proteins could cause this kind of damage. The answer is that eradication of latent viruses still unsuccessful and studies showed the persistence of HIV-1 in brain cells as well as the presence of viral proteins in CSF. This notion was supported by the compelling neuropathological data suggesting that the loss of Synaptic Plasticity occurs with the ongoing presence of virus and despite HAART. Clinically, these neuropathological data manifest by a gradual loss of working memory and learning disability, which promote alteration of synaptic plasticity that may manifest by symptoms similar to the ones observed in aged brain or what is called PREMATURE BRAIN AGING. Anatomically, working memory and learning ability functions are assured by neurons of the hippocampus, a brain area known-to-be affected by HIV-1 proteins. Mechanistically, several laboratories, including ours, demonstrated that viral proteins perform their functions through deregulation of several molecular pathways that can cause mitochondrial damage (such as depletion of mitochondrial calcium and release of ROS), inhibition of axonal transport leading to prevent neuronal communications or loss of long-term potentiation (LTP). Interestingly, CREB and BDNF proteins have been shown to play an important role in this phenomenon directly or through its downstream target genes. In here, we examined the impact of HIV-1 Tat on CREB-BDNF pathway and whether Tat is using this pathway to cause neuronal deregulation.
    ADA compliance
    For Americans with Disabilities Act (ADA) accommodation, including help with reading this content, please contact scholarshare@temple.edu
    Collections
    Theses and Dissertations

    entitlement

     
    DSpace software (copyright © 2002 - 2023)  DuraSpace
    Temple University Libraries | 1900 N. 13th Street | Philadelphia, PA 19122
    (215) 204-8212 | scholarshare@temple.edu
    Open Repository is a service operated by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.