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Copyright (c) 2024 Zhangyitian Fu, Mimi Wan, Tuo Jin, Sihua Lai, Xiaoyin Li, Xinyi Sun, Weiping Gao
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The undersigned hereby assign all rights, included but not limited to copyright, for this manuscript to CMB Association upon its submission for consideration to publication on Cellular and Molecular Biology. The rights assigned include, but are not limited to, the sole and exclusive rights to license, sell, subsequently assign, derive, distribute, display and reproduce this manuscript, in whole or in part, in any format, electronic or otherwise, including those in existence at the time this agreement was signed. The authors hereby warrant that they have not granted or assigned, and shall not grant or assign, the aforementioned rights to any other person, firm, organization, or other entity. All rights are automatically restored to authors if this manuscript is not accepted for publication.Electroacupuncture modulates the TLR4-NF-κB inflammatory signaling pathway to attenuate ocular surface inflammation in dry eyes of type 2 diabetic rats
Corresponding Author(s) : Weiping Gao
Cellular and Molecular Biology,
Vol. 70 No. 5: Issue 5
Abstract
Bioinformatics analysis was performed to reveal the underlying pathogenesis of type 2 diabetes (T2DM) dry eye(DE) and to predict the core targets and potential pathways for electroacupuncture (EA) treatment of T2DM DE, in which key targets such as Toll-likereceptor4 (TLR4), NF-κB and Tumor necrosis factor-α (TNF-α) may be involved. Next, streptozotocin and a high-fat diet were used to generate T2DM-DE rats. Randomly picked EA, fluorometholone, model, and sham EA groups were created from successfully modelled T2DM DE rats. Six more rats were chosen as the blank group from among the normal rats. The results of DE index showed that EA improved the ocular surface symptoms.HE staining showed that EA attenuated the pathological changes in the cornea, conjunctiva and lacrimal gland of T2DM DE rats. EA decreased the expression of TLR4, MyD88, P-NF-κB P65, and TNF-α in the cornea, conjunctiva, and lacrimal gland, in accordance with immunofluorescence and Western blot data. Thus, EA reduced ocular surface symptoms and improved pathological changes of cornea, conjunctiva, and lacrimal gland induced by T2DM DE inT2DM DE rats, and the mechanism may be related to the inhibition of overactivation of the TLR4/NF-κB signaling pathway by EA and thus attenuating ocular surface inflammation.
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