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Glaucoma is a leading cause of blindness worldwide. The loss of vision in glaucoma patients is due to optic nerve damage. The most important risk factor of glaucoma is elevated intraocular pressure (IOP) which is due to glaucomatous changes in the trabecular meshwork. Animal models, especially mouse models for ocular hypertension (OHT), are important for studying glaucoma. Published studies showed that 2.5 × 107 PFU adenoviral vectors expressing the biologically active form of human TGFβ2 elevate IOP in female C57BL/6J mice when they are intravitreally delivered. In this study, we found that 2.5 × 107 PFU adenoviral TGFβ2 vector did not elevate IOP in 3- or 5-month old male C57BL/6J mice. In contrast, 5 × 107 PFU of the same viral vectors elevated IOP in both 3- and 5-month old male C57BL/6J mice. Also, 5-month old mice showed earlier OHT and higher IOP compared to 3-month old mice. In summary, our data showed that age and sex play roles in adenoviral vector-mediated TGFβ2-induced OHT in C57BL/6J mice. Copyright © 2022 Elsevier Ltd. All rights reserved.


Chenna Kesavulu Sugali, Naga Pradeep Rayana, Jiannong Dai, Michael Peng, Weiming Mao. Age and sex affect TGFβ2-induced ocular hypertension in C57BL/6J mice. Experimental eye research. 2022 Jun;219:109055

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PMID: 35367417

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