Browsing Department of Global Public Health and Primary Care by Author "Idris, Ali M."
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Characterization of an amorphous deposit in the lamina propria in oral snuff users in the Sudan as collagen
Idris, Ali M.; Warnakulasuriya, K. A. A. Saman; Ibrahim, Y. E.; Hartley, R.; Paterson, K.; Patel, B.; Nilsen, Rune; Johnson, N. W. (Peer reviewed; Journal article, 1998-04)Histological and ultrastructural features of 25 oral snuff dipper's lesions with distinctive subepithelial hyaline deposits were investigated. Periodic acid-Schiff reaction with and without diastase digestion demonstrated ... -
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. ... -
Toombak Use and Cigarette Smoking in the Sudan: Estimates of Prevalence in the Nile State
Idris, Ali M.; Ibrahim, Y. E.; Warnakulasuriya, K. A. A. Saman; Cooper, D. J.; Johnson, N. W.; Nilsen, Rune (Peer reviewed; Journal article, 1998-07)Background. Survey data on the prevalence of use of oral snuff (toombak) and cigarette consumption according to various demographic factors are needed in the Sudan. Methods. A house to house cross-sectional survey of a ...