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IL-21 might contribute to the development of B-cell disorder in Sj?gren��s syndrome via Tfh cells pathway. ""J Oral Pathol Med (2012) 41: 235�C241 Background:? Oxidative stress has been implicated in the pathogenesis of diabetes mellitus (DM). Levels of 8-hydroxy-2��-deoxyguanosine (8-OHdG), 8-epi-prostaglandin-F2�� (8-epi-PGF2��), and total protein carbonyls were measured to assess whether DM is associated with altered salivary redox homeostasis. Methods:? A total of 215 patients with diabetes and 481 healthy controls were recruited from the Department of Endocrinology at the Jewish General Hospital in Montreal. Levels of oxidative biomarkers were assayed using enzyme-linked immunosorbent assay (ELISA) in whole unstimulated saliva. Associations of the redox data with exposure to insulin, metformin and dietary control were assessed by logistic regression analyses. Results:? We observed (i) significantly higher http://www.selleck.cn/products/gdc-0068.html mean levels of 8-OHdG and protein carbonyls in whole unstimulated saliva of patients with diabetes compared to controls, (ii) higher mean levels of protein carbonyls in type 1 diabetes as well as higher mean levels of 8-OHdG and protein carbonyls in type 2 diabetes compared to controls, (iii) elevated levels of protein carbonyls in diet-controlled patients and in patients with diabetes on insulin and metformin, (iv) elevated levels of 8-OHdG http://www.selleckchem.com/products/Bortezomib.html in patients on metformin, and (v) significant associations between subjects with DM and salivary 8-OHdG and protein carbonyls. Conclusion:? DM is associated with increased oxidative modification of salivary DNA and proteins. Salivary redox homeostasis is perturbed in DM and may inform on the presence of the disease and efficacy of therapeutic interventions. ""J Oral Pathol Med (2012) 41: 621�C629 Background:? Although autophagy is universally involved in tumorigenesis and tumor progression, the roles of autophagy and autophagy-regulating genes in salivary gland adenoid cystic carcinoma (ACC) remain http://www.selleckchem.com/products/sch772984.html unknown. In this study, we investigated the expression of the autophagy-regulating genes Beclin-1, death-associated protein kinase-1, ultraviolet radiation resistance�Cassociated gene, and phosphatase and tensin homolog in salivary gland ACC samples. Methods:? Immunohistochemistry and real-time polymerase chain reaction were used to analyze the expression of these genes in 89 ACC samples and normal salivary gland tissue samples. The relationship of their expression with clinicopathological features was analyzed. Results:? The data showed significantly lower expression of these genes in the tumor samples than in normal salivary gland tissue samples. Furthermore, Beclin-1 expression was significantly correlated with histological pattern of ACC (P?