Alharbi, I A Repeated exposure to whole cigarette smoke promotes primary human gingival epithelial cell growth and modulates keratin expression. [electronic resource] - Journal of periodontal research Oct 2016 - 630-8 p. digital Publication Type: Journal Article ISSN: 1600-0765 Standard No.: 10.1111/jre.12343 doi Subjects--Topical Terms: AdolescentAdultApoptosis--drug effectsBromodeoxyuridineCell Proliferation--drug effectsCell Survival--drug effectsEpithelial Cells--drug effectsEpithelium--drug effectsGene Expression RegulationGingiva--cytologyHumansKeratins--metabolismProto-Oncogene Proteins c-bcl-2--geneticsRNA, Messenger--analysisSmoke--adverse effectsTetrazolium SaltsThiazolesTime FactorsNicotiana--adverse effectsYoung Adultbcl-2-Associated X Protein--genetics