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Depression: 21st Century Solutions + The Dark Side of Wheat

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Article Publish Status: FREE
Abstract Title:

Melatonin promotes diabetic wound healing in vitro by regulating keratinocyte activity.

Abstract Source:

Am J Transl Res. 2016 ;8(11):4682-4693. Epub 2016 Nov 15. PMID: 27904671

Abstract Author(s):

Ruipeng Song, Lijun Ren, Haoli Ma, Ruijing Hu, Honghong Gao, Li Wang, Xuehui Chen, Zhigang Zhao, Jialin Liu

Article Affiliation:

Ruipeng Song

Abstract:

Diabetic patients are at high risk of developing delayed cutaneous wound healing. Proper keratinocyte proliferation and migration are crucial steps during re-epithelialization. Melatonin (Mel) accelerates wound repair in full-thickness incisional wounds; however, its role in diabetic wound healing is unknown. This study explored the role of Mel in diabetic wound healing in vitro by using high glucose (HG)-cultured keratinocytes. Mel reduced the HG-induced mRNA expression and release of pro-inflammatory cytokines, including tumor necrosis factor-α, interleukin (IL)-1β, IL-6, and IL-8, in keratinocytes. Mel inhibited oxidative stress, as evidenced by reduced production of reactive oxygen species and malondialdehyde and increased activity of superoxide dismutase in HG-stimulated keratinocytes. Mel also inhibited HG-induced nucleotide binding oligomerization domain-like receptor family pyrin domain-containing 3 inflammasome activation in keratinocytes. HG-induced reduced migration and proliferation and increased apoptosis of keratinocytes were counteracted by Mel treatment. The pro-proliferative, pro-migratory, and anti-apoptotic effects of Mel on HG-treated keratinocytes were mediated by extracellular signal-regulated kinase signaling pathway. Results collectively suggested that Mel is an alternative therapeutic strategy to ameliorate poor condition for diabetic wound healing by regulating keratinocyte activity.

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Sayer Ji
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Depression: 21st Century Solutions + The Dark Side of Wheat

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