Blar i Bergen Open Research Archive på forfatter "Vasstrand, Endre N."
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Expression of biomarkers (p53, transforming growth factor alpha, epidermal growth factor receptor, c-erbB-2/neu and the proliferative cell nuclear antigen) in oropharyngeal squamous cell carcinomas
Ibrahim, Salah Osman; Lillehaug, Johan; Johannessen, Anne Christine; Liavaag, P. G.; Nilsen, Rune; Vasstrand, Endre N. (Peer reviewed; Journal article, 1999)Using immunohistochemistry, expression of p53, transforming growth factor-alpha (TGF-α), epidermal growth factor receptor (EGFR), c-erbB-2/neu and proliferating cell nuclear antigen (PCNA) was examined in 26 fresh frozen ... -
Gene expression profile of oral squamous cell carcinomas from Sri Lankan betel quid users
Lunde, Mai Lill Suhr; Dysvik, Bjarte; Bruland, Ove; Warnakulasuriya, K. A. A. Saman; Amaratunga, Asoka N.; Jonassen, Inge; Vasstrand, Endre N.; Ibrahim, Salah Osman (Peer reviewed; Journal article, 2007-11)Oral squamous cell carcinoma (OSCC) is one of the major health problems in Sri Lanka and the disease is associated with the habit of Betel Quid (BQ) chewing. Using 35k oligo microarrays, we analyzed the gene expression ... -
Immunohistochemical detection of p53 in non-malignant and malignant oral lesions associated with snuff dipping in the Sudan and Sweden
Ibrahim, Salah Osman; Johannessen, Anne Christine; Idris, Ali M.; Hirsch, Jan M.; Vasstrand, Endre N.; Magnusson, Bengt; Nilsen, Rune (Journal article, 1996)Immunohistochemistry was used to examine the expression of p53 in pre-malignant oral lesions and oral squamous-cell carcinomas (SCCs) from Swedish and Sudanese snuff-dippers, as well as in pre-malignant oral lesions and ... -
Mutations of the p53 gene in oral squamous-cell carcinomas from sudanese dippers of nitrosamine-rich toombak and non-snuff-dippers from the Sudan and Scandinavia
Ibrahim, Salah Osman; Vasstrand, Endre N.; Johannessen, Anne Christine; Idris, Ali M.; Magnusson, Bengt; Nilsen, Rune; Lillehaug, Johan (Journal article, 1999-11-08)Using PCR-SSCP/DNA sequencing methods, we analyzed 14 oral squamous-cell carcinomas (OSCCs) and 8 pre-malignant oral lesions from different Sudanese patients for prevalence of mutations in exons 5 to 9 of the p53 gene in ... -
The Swedish Snus and the Sudanese Toombak: are they different?
Idris, Ali M.; Ibrahim, Salah Osman; Vasstrand, Endre N.; Johannessen, Anne Christine; Lillehaug, Johan; Magnusson, Bengt; Wallström, M.; Hirsch, Jan M.; Nilsen, Rune (Journal article, 1998-11)In Sweden, snuff (locally known as snus), was introduced since the year 1637. Presently, Sweden has the highest per capita consumption and sale figures of snuff in the world, and the habit is becoming increasingly popular. ...