R
Raymond Bégin
Researcher at Université de Sherbrooke
Publications - 95
Citations - 2789
Raymond Bégin is an academic researcher from Université de Sherbrooke. The author has contributed to research in topics: Asbestosis & Bronchoalveolar lavage. The author has an hindex of 32, co-authored 95 publications receiving 2741 citations.
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Journal ArticleDOI
Transforming growth factor-beta1 is a potent inhibitor of glutathione synthesis in the lung epithelial cell line A549: transcriptional effect on the GSH rate-limiting enzyme gamma-glutamylcysteine synthetase.
Karim Arsalane,Claire M. Dubois,Thierry Muanza,Raymond Bégin,François Boudreau,Claude Asselin,André M. Cantin +6 more
TL;DR: It is observed that TGF-β1 increased susceptibility of the human alveolar epithelial cell line A549 to H2O2-mediated cytotoxicity, and decreased the activities of the antioxidant enzymes glutathione reductase and catalase by 31%, and markedly decreased GSH content in A549 cells.
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Clara cell protein (CC-16) induces a phospholipase A2-mediated inhibition of fibroblast migration in vitro.
Olivier Lesur,Alfred Bernard,K. Arsalane,Robert Lauwerys,Raymond Bégin,André M. Cantin,Denis Lane +6 more
TL;DR: CC-16 is able to inhibit fibroblast chemotaxis in vitro by mechanisms that may be related to a blockage of cytosolic PLA2 activity and it can be postulated that CC-16 deficiency may contribute to fibroblastic burden activity in fibrosing lung diseases.
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Farmer's lung. Long-term outcome and lack of predictive value of bronchoalveolar lavage fibrosing factors.
Marc Lalancette,Guy Carrier,Michel Laviolette,Sylvie Ferland,Jean Rodrique,Raymond Bégin,André M. Cantin,Yvon Cormier +7 more
TL;DR: It is concluded that airflow obstruction with or without emphysema is an important long-term sequela of FL and that bronchoalveolar lavage fluid markers or substrates of fibrosis do not predict outcome in this disease.
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Transforming growth factor-beta (TGF-beta) in silicosis.
Jaishree Jagirdar,Raymond Bégin,André Dufresne,Sunanda Goswami,Theodore C. Lee,William N. Rom +5 more
TL;DR: A major role is suggested for TGF-beta in silicosis, particularly in the formation of silicotic nodules and the development of PMF.
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Emphysema in Silica- and Asbestos-Exposed Workers Seeking Compensation: A CT Scan Study
TL;DR: There was a significant excess of CT scan emphysema, associated with lung dysfunction, in those with pneumoconioses and in smokers with silica exposure, and in workers exposed to these minerals without the pneumoconiosis.