Inflammation is the biological response to harmful stimuli, such as autoimmune diseases, pathogenic infections, damaged cells and irritants; inflammation initiates the healing process to prevent injury. Inflammation increases the expression of inflammatory mediators, such as nitric oxide (NO) and prostaglandin E2 (PGE2), which are regulated by NO synthase (NOS) and cyclooxygenases (COXs), respectively, as well as inflammatory cytokines, such as interleukin (IL)-1β, IL-6 and tumor necrosis factor-α (TNF-α) (1,2). These inflammatory regulators are required to regulate the cellular pathways involved in protecting the organs (3–5). However, excessive inflammatory response can lead to an overexpression of pro-inflammatory factors, which can result in severe inflammatory disorders (5–7).