• Login
    View Item 
    •   USU-IR Home
    • Faculty of Medicine
    • Department of Anatomical Pathology
    • Master Theses
    • View Item
    •   USU-IR Home
    • Faculty of Medicine
    • Department of Anatomical Pathology
    • Master Theses
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Tampilan Imunohistokimia COX-2 pada Lesi Gastritis, Pre-Kanker dan Kanker Lambung

    View/Open
    Fulltext (1.534Mb)
    Date
    2007
    Author
    Betty
    Advisor(s)
    Tambunan, Gani W.
    Metadata
    Show full item record
    Abstract
    Gastric cancer is the second most common cancer in the world. Although its cause not yet been known surely, but estimated that is the late conditions of multifactorial, multistep and multigenetic processes. Growth of gastric cancer according to Correa (1975) is from chronic gastritis – gastric atrophic – intestinal metaplasia, later on experience of the disparity of genomic and fenotype become dysplasia and neoplasia. Since 1983, Barry Marshall and Robert Warren (Australian) find that chronic infection of Helicobacter pylori (sometime since childhood) at stomach can leading cause of gastric atrophic, intestinal metaplasia, dysplasia and gastric carcinoma. These lesions also often founded co-incidence. On 1994, Working team IARC (International Agency for Research on Cancer) and WHO have classified Helicobacter pylori as group I carcinogenic. According to some study previously contribute that Cyclooxygenase-2 (COX-2) have the strong expression in gastrointestinal tumours, and some cancer type of colorectal, pancreas, hepatocellular, oesophagus and also gastric. At this research, we see the expression of COX-2 in gastritis, gastric pre-cancer and cancer lesion by COX-2 immunohistochemistry to 48 sample paraffin block from biopsy of stomach tissue. The most wide COX-2 expression is moderately wide percentage of expression (10-50% epithelial cells which are positive) both in epithelial cells of foveolar surface and also in epithelial cells of glands. There are most founded in pre-cancer lesions especially atrophic gastritis (25,9% epithelial cells of foveolar surface and 55,0% epithelial cells of glands); mild dysplasia (25,9% epithelial cells of fovolar surface and 15,0% epithelial cells of glands); also in gastritis (25,9% epithelial cells of foveolar surface positive and 10,0% epithelial cells of glands positive).
     
    Kanker lambung adalah jenis kanker kedua terbanyak di dunia. Walaupun penyebabnya belum diketahui secara pasti, namun diduga merupakan kondisi akhir dari proses yang multifaktorial, multistep dan multigenetik. Perkembangan karsinoma lambung menurut Correa (1975) berupa gastritis kronik-gastritis atrofi-metaplasia intestinal yang selanjutnya mengalami kelainan genomik dan fenotip menjadi displasia serta neoplasia. Sejak 1983, Barry Marshall dan Robert Warren (Australia) menemukan bahwa infeksi kronis Helicobacter pylori (kadang sejak masa anak-anak) pada lambung dapat menyebabkan gastritis atrofi, metaplasia intestinal, displasia dan karsinoma. Lesi-lesi ini juga sering ditemukan secara ko-insiden. Pada tahun 1994, kelompok kerja IARC (International Agency for Research on Cancer) dan WHO telah mengklasifikasikan Helicobacter pylori sebagai karsinogenik kelompok I. Berdasarkan beberapa studi sebelumnya menyokong bahwa Cyclooxygenase-2 (COX-2) mempunyai tampilan yang kuat pada tumor gastrointestinal, dan beberapa jenis kanker seperti kolorektal, pankreas, hepatoseluler, esofagus maupun lambung. Pada penelitian ini kami melihat tampilan COX-2 pada lesi gastritis, pre-kanker dan kanker lambung dengan melakukan pemeriksaan imunohistokimia COX-2 terhadap 48 sampel sediaan blok parafin dari jaringan biopsi lambung. Luas tampilan COX-2 yang terbanyak adalah persentase luas tampilan sedang (10-50% sel epitel yang tertampil positif) baik pada sel epitel foveolar permukaan maupun pada sel epitel kelenjar. Ini terutama tertampil pada lesi pre-kanker yaitu gastritis atrofi (25,9% pada sel epitel foveolar permukaan dan 55,0% pada sel epitel kelenjar); displasia ringan (25,9% pada sel epitel foveolar permukaan dan 15,0% pada sel epitel kelenjar); dan juga gastritis (25,9% pada sel epitel foveolar permukaan, 10,0% pada sel epitel kelenjar).

    URI
    http://repositori.usu.ac.id/handle/123456789/43923
    Collections
    • Master Theses [123]

    Repositori Institusi Universitas Sumatera Utara (RI-USU)
    Universitas Sumatera Utara | Perpustakaan | Resource Guide | Katalog Perpustakaan
    DSpace software copyright © 2002-2016  DuraSpace
    Contact Us | Send Feedback
    Theme by 
    Atmire NV
     

     

    Browse

    All of USU-IRCommunities & CollectionsBy Issue DateTitlesAuthorsAdvisorsKeywordsTypesBy Submit DateThis CollectionBy Issue DateTitlesAuthorsAdvisorsKeywordsTypesBy Submit Date

    My Account

    LoginRegister

    Repositori Institusi Universitas Sumatera Utara (RI-USU)
    Universitas Sumatera Utara | Perpustakaan | Resource Guide | Katalog Perpustakaan
    DSpace software copyright © 2002-2016  DuraSpace
    Contact Us | Send Feedback
    Theme by 
    Atmire NV