: The aims of this work were a) to describe the histology of the lacrimal gland (LG) and cornea induced by an adenovirus (Ad) vector encoding the human erythropoietin (Epo) gene delivered to the LG and b) to evaluate the therapeutic potential of this strategy to prevent benzalkonium chloride (BAK) corneal toxicity.: Structure and function of male Wistar rats LG were compared in the groups: 1) naïve control and 2) Ad-hEpo in the right LG (RLG). The protective response against BAK eye drops was compared among the groups 1) naïve control, 2) BAK in the right eye, 3) Ad-hEpo RLG + BAK and 4) Ad-hEpo in the right salivary gland (RSG)+BAK.
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