Abstract:
:Cyclo-oxygenase (COX) is an enzyme that participates in the wound healing process. Aspirin, a non-steroidal anti-inflammatory drug, simultaneously inhibits the aromatase activity of COX-1 and COX-2 isoforms, which is needed for prostaglandin synthesis. The aim of the present study was to determine whether aspirin, and thus COX inhibition, distinctly affects cutaneous wound healing in female and male mice. Female and male BALB/c mice were treated with aspirin (25 mg/kg per day) for 16 days until they were killed. The control group received vehicle (saline) only. A full-thickness excisional lesion was made on the back, 2 days after aspirin administration started, and macroscopic, histological and biochemical parameters were evaluated. Sections were stained and immunostained for microscopic analysis. Myeloperoxidase (MPO) activity, hydroxyproline quantity and the protein expression of von Willebrand factor (vWF) and vascular endothelial growth factor (VEGF) were also determined. Female control and aspirin-treated groups exhibited delayed wound closure and re-epithelization compared with the male control and aspirin-treated groups, respectively. The female control group exhibited reduced MPO activity and a decreased number of macrophage inhibitory factor-positive cells compared with the male control group. In the female aspirin-treated group, MPO activity and the number of F4/80-positive macrophages was higher than in the control group. Collagen was reduced only in the female aspirin-treated group. The expression of vWF and VEGF protein was increased in the female aspirin-treated group. In conclusion, aspirin administration impaired the wound healing process in BALB/c female, but not male, mice.
journal_name
Clin Exp Pharmacol Physioljournal_title
Clinical and experimental pharmacology & physiologyauthors
dos Santos JS,Monte-Alto-Costa Adoi
10.1111/1440-1681.12043subject
Has Abstractpub_date
2013-02-01 00:00:00pages
90-6issue
2eissn
0305-1870issn
1440-1681journal_volume
40pub_type
杂志文章abstract::Although 7,8-dihydroxyflavone (7,8-DHF), a synthetic agonist specific for tyrosine kinase receptor B (TrkB), has been reported to promote intestinal dynamics, its effect on gastric dynamics has not been studied as yet. In this study, we explored how 7,8-DHF affected the carbachol (CCh)-induced contraction of rat gastr...
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